Experiencia del tratamiento de la hernia incisional en un hospital de tercer nivel en Colombia / Experience of the treatment of incisional hernia in a third level hospital in Colombia

Introducción. El manejo de las hernias se ha instaurado como un problema quirúrgico común, estimándose su aumento en los próximos años. El objetivo del presente trabajo fue describir el curso clínico, los aspectos del tratamiento quirúrgico y factores asociados a la presencia de complicaciones en pacientes intervenidos por hernia incisional. Métodos. Estudio descriptivo en el que se analizaron las características de una cohorte de pacientes llevados a corrección quirúrgica de hernia incisional en el Hospital Universitario Hernando Moncaleano Perdomo, un centro de alta complejidad en Neiva, Colombia, entre 2012 y 2019. Los datos fueron recolectados en programa Microsoft Excel® y analizados en SPSSTM, versión 21. Resultados. Se realizaron 133 correcciones de hernias incisionales, 69,9 % en mujeres y la mayoría ubicadas en la línea media (84,2 %). La edad media de los pacientes al momento de la intervención fue de 52 años ±14,6. Las comorbilidades más frecuentes fueron obesidad, hipertensión y diabetes. La causa más frecuente de la hernia fue traumática (61,7 %). La frecuencia de complicaciones fue superior al 50 %, en su mayoría menores; se encontró asociación con obesidad para la presencia de seroma. La mortalidad fue del 2,3 %. Conclusión.La hernia incisional es un problema de salud pública. Consideramos que la obesidad y el uso de malla pueden ser factores de riesgo asociados con la presentación de complicaciones postoperatorias, así como el aumento de los gastos relacionados con días de hospitalización

Introduction. Hernias management has become a common surgical problem, with an estimated increase in the coming years. The objective of this study was to describe the clinical course, aspects of surgical treatment and factors associated with the presence of complications in patients operated on for incisional hernia. Methods. Descriptive study, in which the characteristics of a cohort of patients taken to surgical correction of incisional hernia at the Hospital Universitario Hernando Moncaleano Perdomo, a high complexity medical center located in Neiva, Colombia, between 2012 and 2019 were analyzed, whose data were collected in Microsoft Excel® software and analyzed in SPSSTM, version 21. Results. One-hundred-thirty-three incisional hernia corrections were performed. The mean age at the intervention was 52 years ±14.6. The most frequent comorbidities were weight disorders, hypertension and diabetes. Only one laparoscopy was performed, the first etiology of the hernia was traumatic (61.7%) and midline (84.2%). The frequency of complications was greater than 50%, mostly minors. An association with obesity was found for the presence of seroma. Mortality was 2.3%. Conclusion. Incisional hernia is a public health problem. We consider that obesity and the use of mesh are a risk factor associated with the presentation of postoperative complications as well as the increase in costs related to days of hospitalization

Mapping the modulating effect of transcutaneous auricular vagus nerve stimulation on voxel-based analyses in patients with first-episode major depressive disorder: a resting-state functional magnetic resonance imaging study

Introduction: Seed-based analysis has shown that transcutaneous auricular vagus nerve stimulation (taVNS) can modulate the dysfunctional brain network in patients with major depressive disorder (MDD). However, the voxel-based neuropsychological mechanism of taVNS on patients with first-episode MDD is poorly understood. The objective of this study was to assess the effects of an 8-week course of taVNS on patients with first-episode MDD. Methods: Twenty-two patients with first-episode MDD accepted an 8-week course of taVNS treatment. Resting-state functional magnetic resonance imaging (rs-fMRI) scans were performed before and after treatment. Voxel-based analyses were performed to characterize spontaneous brain activity. Healthy controls (n=23) were recruited to minimize test-retest effects. Analysis of covariance (ANCOVA) was performed to ascertain treatment-related changes. Then, correlations between changes in brain activity and the Hamilton Depression Rating Scale (HAM-D)/Hamilton Anxiety Scale (HAM-A) remission rate were estimated. Results: Significant group-by-time interactions on voxel-based analyses were observed in the inferior ventral striatum (VSi) and precuneus. Post-hoc analyses showed that taVNS inhibited higher brain activity in the VSi, while upregulating it in the precuneus. Functional connectivity (FC) between the VSi and precuneus decreased. Positive correlations were found between the HAM-D remission rate and changes in brain activity in the VSi. Conclusion: taVNS reduced the FC between VSi and precuneus by normalizing the abnormal spontaneous brain activity of VSi in first-episode MDD patients.

Effects of cloperastine, a non-narcotic antitussive, on the expression of GIRK channels in the brain of methamphetamine-induced hyperactive mice

Objectives: Centrally-acting antitussives with inhibitory effects on G protein-coupled inwardly rectifying potassium (GIRK) channels have been shown to also inhibit methamphetamine-induced hyperactivity in mice. In this study, we examined if cloperastine, which is the most potent inhibitor of the GIRK channels among antitussives, is sensitive to the expression levels of GIRK channels in the brain of methamphetaminetreated mice. Materials and Methods: The brain tissues have been removed and the total RNA has been extracted from tissues. The mRNA levels were evaluated using semiquantitative reverse transcription-polymerase chain reaction. Results: The concentration levels of the mRNA of GIRK channels within the ventral midbrain of methamphetamine-treated mice increased as compared with that in control and cloperastine reduced an upregulation in GIRK2, one of the subunits of the GIRK channels, by the injection of methamphetamine. Conclusion: These findings suggest that cloperastine might ameliorate hyperactivity by inhibiting the GIRK channels in the brain.

Roles of HMGB1 in spread of pain sensitization of trigeminal neuropathic pain / 中国药理学与毒理学杂志

OBJECTIVE Trigeminal pain is mostly uni-lateral orofacial,but pain sensitization often spreads to contralateral orofacial or distal body regions.Widespread trigeminal pain has more severe intensity,longer dura-tion,and wider distribution,accompanied by more serious comorbid emotional syndrome.Unfortunately,the first-line analgesics for neuropathic pain has limited effect on widespread pain along with unavoidable side effects.In-depth understanding of the pathogenesis of wide-spread trigeminal pain is urgently needed.METHODS Trigeminal pain was induced by partial transection of the infraorbital nerve(p-IONX)and evaluated by measur-ing nociceptive thresholds to mechanical or heat stimula-tion.Neuronal activity was evaluated by single-unit and patch clamp recordings.HMGB1 expression was mea-sured by immunohistochemistry.Antagonism of HMGB1 was achieved by injecting anti-HMGB1 monoclonal anti-body(mAb)intracerebrally or intraperitoneally.RESULTS P-IONX model induced not only orofacial algesia but also somatic algesia in hind paw.Spontaneous firing frequency of glutamatergic neurons in the ventral posteromedial tha-lamic nucleus(VPMGlu)as well as the amplitude and fre-quency of sEPSCs significantly increased after p-IONX.Moreover,calcium signal recording showed that VPMGlu became to be activated by the noxious mechanical stimu-lation given on the hind paw,suggesting that VPMGlu recruited somatic afferents after p-IONX.We further explored the upstream brain regions of VPMGlu by virus retrograde tracing.We found the afferents from the grac-ile nucleus/cuneate nucleus(Gr/Cu),which are involved in the conduction of somatic sensation,markedly increased.And chemogenetical inhibiting Gr/Cu-VPM circuit alleviated the widespread neuropathic pain.In addition,the expression of HMGB1 in the VPM was sig-nificantly increased after p-IONX.Local administration of anti-HMGB1 mAb in the VPM relieved widespread neuro-pathic pain in mice receiving p-IONX.CONCLUSION These results demonstrate that the remodeling of affer-ent neurons in VPM underlie the spreading of wide-spread trigeminal neuropathic pain.Highly expressed HMGB1 in VPM plays an important role in these patho-logical changes after nerve injury and systemic adminis-tration of anti-HMGB1 mAb concurrently relieves wide-spread pain.

Resting-state functional connectivity alterations of ventral tegmental area in adult male smokers: a functional magnetic resonance imaging study / 中华行为医学与脑科学杂志

Objective:To investigate the alterations of resting-state functional connectivity (RSFC) in ventral tegmental area (VTA) and substantia nigra (SN) among male smokers, and its correlation with clinical characteristics of smoking.Methods:The resting-state functional magnetic resonance data of 131 subjects recruited from January 2014 to December 2018 were analyzed retrospectively, including 76 smokers (smoking group) and 55 non-smokers (control group). VTA/SN was selected as regions of interest (ROI), and then calculated RSFC between VTA/SN and the whole brain.Based on SPM12 software, independent sample t-test was conducted to compare the differences in RSFC between smoking group and control group.Based on SPSS 22.0 software, Pearson correlation analysis was used to investigate the relationships between the RSFC of brain regions with significant differences and Fagerstr?m test for nicotine dependence (FTND) score, pack-year of smokers. Results:Compared with control group, the results showed decreased RSFC between VTA and the brain regions related default mode network (DMN)(including posterior cingulate cortex, right anterior cuneiform lobe, bilateral superior temporal gyrus, right middle temporal gyrus and right inferior parietal lobule), and regions of limbic system(including right marginal lobe and right angular gyrus), right calcarine (MNI: x, y, z=24, -55, -14) and left insula(MNI: x, y, z=-35, -11, 9) in smoking group(GRF corrected, voxel level P<0.005, cluster level P<0.05). Taking SN as the seed, there was no significant difference between smoking group and control group ( P>0.05). RSFC of VTA-left superior temporal gyrus was positively correlated with pack-year( r=0.243, P=0.034) and FTND ( r=0.282, P=0.014). VTA-left insula RSFC was positively correlated with FTND ( r=0.316, P=0.006). Conclusion:The RSFC in the mesolimbic system and the VTA-DMN circuit exist abnormal changes in smokers.To some extent, it may explain the reward deficits and dysfunction of emotion regulation in smokers, which may provide clues for further understanding the mechanism of tobacco addiction.

An Anterior Cingulate Cortex-to-Midbrain Projection Controls Chronic Itch in Mice / 神经科学通报·英文版

Itch is an unpleasant sensation that provokes the desire to scratch. While acute itch serves as a protective system to warn the body of external irritating agents, chronic itch is a debilitating but poorly-treated clinical disease leading to repetitive scratching and skin lesions. However, the neural mechanisms underlying the pathophysiology of chronic itch remain mysterious. Here, we identified a cell type-dependent role of the anterior cingulate cortex (ACC) in controlling chronic itch-related excessive scratching behaviors in mice. Moreover, we delineated a neural circuit originating from excitatory neurons of the ACC to the ventral tegmental area (VTA) that was critically involved in chronic itch. Furthermore, we demonstrate that the ACC→VTA circuit also selectively modulated histaminergic acute itch. Finally, the ACC neurons were shown to predominantly innervate the non-dopaminergic neurons of the VTA. Taken together, our findings uncover a cortex-midbrain circuit for chronic itch-evoked scratching behaviors and shed novel insights on therapeutic intervention.

Endoscopic Mini-or Less-Open Sublay Operation (E/MILOS) in ventral hernia repair: a minimally invasive alternative technique / Endoscopic Mini or Less Open Sublay Repair (E/MILOS) na correção das hérnias ventrais: uma alternativa técnica minimamente invasiva

ABSTRACT The ideal ventral hernia surgical repair is still in discussion1. The defect closure with a mesh-based repair is the base of surgical repair, in open or minimally invasive techniques2. The open methods lead to a higher surgical site infections incidence, meanwhile, the laparoscopic IPOM (intraperitoneal onlay mesh) increases the risk of intestinal lesions, adhesions, and bowel obstruction, in addition to requiring double mesh and fixation products which increase its costs and could worsen the post-operative pain3-5. The eTEP (extended/enhanced view totally intraperitoneal) technique has also arisen as a good option for this hernia repair. To avoid the disadvantages found in classic open and laparoscopic techniques, the MILOS (Endoscopically Assisted Mini or Less Open Sublay Repair) concept, created by W. Reinpold et al. in 2009, 3 years after eTEP conceptualization, allows the usage of bigger meshes through a small skin incision and laparoscopic retro-rectus space dissection, as the 2016 modification, avoiding an intraperitoneal mesh placement6,7. This new technique has been called E-MILOS (Endoscopic Mini or Less Open Sublay Repair)8. The aim of this paper is to report the E-MILOS techniques primary experience Brazil, in Santa Casa de Misericórdia de São Paulo.

RESUMO O tratamento cirúrgico ideal para correção das hérnias ventrais ainda é motivo de grande discussão1. O fechamento do defeito associado a utilização de telas para reforço da parede abdominal são passos fundamentais da terapia cirúrgica, podendo ser realizados tanto pela via aberta quanto pelas técnicas minimamente invasivas2. A via aberta apresenta maiores taxas de infecção de sítio cirúrgico, enquanto o reparo laparoscópico IPOM (intraperitoneal onlay mesh) acarreta um risco aumentado de lesões intestinais, aderências e obstruções intestinais, além de requerer uso de telas de dupla face e dispositivos de fixação que encarecem o procedimento e não raro aumentam a dor no pós-operatório3-5. A técnica eTEP (extended/enhanced view totally extraperitoneal), tem ganhado importância, mostrando-se uma boa opção para a correção das hérnias ventrais também2. A fim de se evitar as desvantagens das técnicas abertas e laparoscópicas "clássicas" o conceito MILOS (Endoscopically Assisted Mini or Less Open Sublay Repair), desenvolvido por W. Reinpold et al. em 2009, 3 anos antes do advento do eTEP, possibilita ao cirurgião o uso de telas de grandes dimensões no plano retromuscular através de uma pequena incisão na pele e dissecção laparoscópica deste espaço, conforme modificação realizada em 2016, evitando a colocação de uma tela no espaço intraperitoneal6-7. Esta nova técnica passou a se chamar EMILOS (Endoscopic Mini or Less Open Sublay Repair)8 Este artigo tem como objetivo relatar nossa experiência inicial no emprego da técnica E-MILOS no Brasil, na Santa Casa de Misericórdia de São Paulo.

Factors associated with a nonresponse to prone positioning in patients with severe acute respiratory distress syndrome due to SARS-CoV-2 / Fatores associados ao paciente com síndrome do desconforto respiratório agudo grave devido ao SARS-CoV-2 irresponsivo ao decúbito ventral

ABSTRACT Objective: To identify risk factors for nonresponse to prone positioning in mechanically ventilated patients with COVID-19-associated severe acute respiratory distress syndrome and refractory hypoxemia in a tertiary care hospital in Colombia. Methods: Observational study based on a retrospective cohort of mechanically ventilated patients with severe acute respiratory distress syndrome due to SARS-CoV-2 who underwent prone positioning due to refractory hypoxemia. The study considered an improvement ≥ 20% in the PaO2/FiO2 ratio after the first cycle of 16 hours in the prone position to be a 'response'. Nonresponding patients were considered cases, and responding patients were controls. We controlled for clinical, laboratory, and radiological variables. Results: A total of 724 patients were included (58.67 ± 12.37 years, 67.7% males). Of those, 21.9% were nonresponders. Mortality was 54.1% for nonresponders and 31.3% for responders (p < 0.001). Variables associated with nonresponse were time from the start of mechanical ventilation to pronation (OR 1.23; 95%CI 1.10 - 1.41); preintubation PaO2/FiO2 ratio (OR 0.62; 95%CI 0.40 - 0.96); preprone PaO2/FiO2 ratio (OR 1.88. 95%CI 1.22 - 2.94); and radiologic multilobe consolidation (OR 2.12; 95%CI 1.33 - 3.33) or mixed pattern (OR 1.72; 95%CI 1.07 - 2.85) compared with a ground-glass pattern. Conclusion: This study identified factors associated with nonresponse to prone positioning in patients with refractory hypoxemia and acute respiratory distress syndrome due to SARS-CoV-2 receiving mechanical ventilation. Recognizing such factors helps identify candidates for other rescue strategies, including more extensive prone positioning or extracorporeal membrane oxygenation. Further studies are needed to assess the consistency of these findings in populations with acute respiratory distress syndrome of other etiologies.

RESUMO Objetivo: Identificar fatores de risco em pacientes submetidos à ventilação mecânica devido à síndrome do desconforto respiratório agudo grave associada à COVID-19 e hipoxemia refratária irresponsivos ao decúbito ventral em um hospital terciário na Colômbia. Métodos: Estudo observacional baseado em coorte retrospectiva de pacientes submetidos à ventilação mecânica devido à síndrome do desconforto respiratório agudo grave associada ao SARS-CoV-2 em decúbito ventral devido à hipoxemia refratária. O estudo considerou resposta a melhora ≥ 20% na relação entre pressão parcial de oxigênio e fração inspirada de oxigênio após o primeiro ciclo de 16 horas em decúbito ventral. Os pacientes irresponsivos foram considerados casos, e os responsivos foram considerados controles. Controlamos as variáveis clínicas, laboratoriais e radiológicas. Resultados: Foram incluídos 724 pacientes (58,67 ± 12,37 anos, 67,7% do sexo masculino). Destes, 21,9% eram pacientes irresponsivos. A mortalidade foi de 54,1% nos irresponsivos e de 31,3% nos responsivos (p < 0,001). As variáveis associadas à ausência de resposta foram tempo do início da ventilação mecânica até o decúbito ventral (RC de 1,23; IC95% 1,10 - 1,41); relação entre pressão parcial de oxigênio e fração inspirada de oxigênio pré-intubação (RC de 0,62; IC95% 0,40 - 0,96); relação entre pressão parcial de oxigênio e fração inspirada de oxigênio anterior ao decúbito ventral (RC de 1,88; IC95% 1,22 - 2,94); e consolidação radiológica de múltiplos lobos (RC de 2,12; IC95% 1,33 - 3,33) ou padrão misto (RC de 1,72; IC95% 1,07 - 2,85) em comparação com um padrão em vidro fosco. Conclusão: Este estudo identificou fatores associados à ausência de resposta ao decúbito ventral em pacientes com hipoxemia refratária e síndrome do desconforto respiratório agudo devido ao SARS-CoV-2 em ventilação mecânica. O reconhecimento desses fatores ajuda a identificar os candidatos a outras estratégias de resgate, incluindo decúbito ventral mais prolongado ou oxigenação por membrana extracorpórea. São necessários novos estudos para avaliar a consistência desses achados em populações com síndrome do desconforto respiratório agudo por causa de outras etiologias.

Cardiopulmonary resuscitation in the prone position: a systematic review of case series/reports / Reanimação cardiopulmonar em posição prona: uma revisão sistemática de séries/relatos de casos

Abstract Introduction The prone position is frequently adopted for surgical or critically ill patients in intensive care. Cardiorespiratory arrest in these patients may pose an operational challenge, in which delays resulting from mobilization to the supine position culminate in worse outcomes. Objective To provide clinical insight based on the synthesis of evidence from reports or case series on reverse cardiopulmonary resuscitation (reverse CPR) in surgical patients or invasive ventilatory support in severe acute respiratory distress syndrome. Methods This is a systematic review of reports or case series in PubMed, Scopus, Embase, and Google Scholar databases, in addition to a search of the gray literature. Case reports published in any language, reporting at least one case of prone cardiopulmonary resuscitation in patients of any age and in any care context, were considered eligible. Results Thirteen studies of fourteen cases of successful reverse resuscitation were retrieved. Three patients died within 30 days, while the others survived without complications or neurological sequelae. Conclusion Despite limited evidence to support clinical decision-making, prone resuscitation appears to be a feasible alternative in exceptional circumstances, where patient mobilization may result in additional harm, delay or interrupt advanced life support (compressions, high-quality early chest surgery, and defibrillation) or incur occupational risks to the health team.

Resumo Introdução A posição prona é um procedimento frequente de cuidados intensivos para pacientes cirúrgicos ou doentes graves. A ocorrência de parada cardiorrespiratória nestes pacientes pode representar um desafio operacional, no qual atrasos relacionados à mobilização para decúbito dorsal implicam em piores desfechos. Objetivo Oferecer um insight clínico a partir da síntese das evidências oriundas de relatos ou séries de casos sobre a utilização de reanimação cardiopulmonar reversa em pacientes cirúrgicos ou em suporte ventilatório invasivo na síndrome do desconforto respiratório agudo grave. Métodos Trata-se de uma revisão sistemática de relatos ou séries de casos condu-zida nas bases de dados PubMed, Scopus, Embase e Google Scholar, além de busca na literatura cinzenta. Foram considerados elegíveis relatos de caso publicados em qualquer idioma, que reportaram pelo menos um caso de reanimação cardiopulmonar em posição prona em pacientes de qualquer idade e em qualquer contexto de atendimento. Resultados Foram recuperados treze estudos que relataram quatorze casos de reanimação reversa bem-sucedidos. Três pacientes faleceram em um intervalo de 30 dias, enquanto os demais sobreviveram sem complicações ou sequelas neurológicas. Conclusão Apesar de evidências limitadas para suportar a tomada de decisão clínica, a reanimação em posição prona parece ser uma alternativa factível em circunstâncias excepcionais, nas quais a mobilização do paciente pode resultar em dano adicional, atrasar ou interromper o suporte avançado de vida (compressões torácicas precoces de alta qualidade e a desfibrilação) ou, ainda, incorrer em riscos ocupacionais à equipe de saúde.

Algoritmos para prevenir lesão por pressão em paciente com COVID-19 em prona / Algoritmos para prevenir la úlcera por presión en pacientes con COVID-19 en prona / Algorithms to prevent pressure injury in COVID-19 patients in prone position

Resumo Objetivo Elaborar e validar o conteúdo de dois algoritmos para orientar profissionais da linha de frente na prevenção e no tratamento da lesão por pressão em paciente com COVID-19 em posição prona. Métodos Estudo realizado entre setembro e novembro de 2021. Para a construção dos algoritmos, realizou-se revisão da literatura junto às bases de dados MEDLINE®, SciELO e Lilacs. Foram pesquisados artigos publicados entre 2011 e 2021. A validação dos algoritmos foi feita por 59 profissionais da saúde (enfermeiros, fisioterapeutas e médicos), que trabalhavam na linha de frente da COVID-19, utilizando-se a técnica Delphi. Para a análise de dados, foi adotado o Índice de Validade de Conteúdo e o coeficiente alfa de Cronbach. Resultados No primeiro ciclo de avaliação, os itens dos algoritmos foram considerados pelos juízes como "parcialmente adequados a totalmente adequados", e o Índice de Validade de Conteúdo variou entre 0,87 e 0,92. O coeficiente alfa de Cronbach variou entre 0,95 e 0,96, indicando excelente consistência interna do questionário de avaliação utilizado pelos juízes. Após implementados os ajustes sugeridos pelos juízes, os algoritmos foram reenviados para o segundo ciclo de avaliação, no qual todos os itens foram julgados como "adequado" e "totalmente adequado", resultando em um Índice de Validade do Conteúdo de 1,0. Conclusão Os algoritmos para orientar profissionais da saúde na prevenção e no tratamento da lesão por pressão em pacientes com COVID-19 em posição prona foram avaliados por enfermeiros, fisioterapeutas e médicos que estavam na linha de frente de combate à COVID-19, que chegaram a um consenso quanto ao conteúdo no segundo ciclo de avaliação.

Resumen Objetivo Elaborar y validar el contenido de dos algoritmos para orientar profesionales de la línea de frente sobre la prevención y tratamiento de la úlcera por presión en pacientes con COVID-19 en posición prona. Métodos Estudio realizado entre septiembre y noviembre de 2021. Para la elaboración de los algoritmos, se realizó revisión de la literatura en las bases de datos MEDLINE®, SciELO y Lilacs. Se buscaron artículos publicados entre 2011 y 2021. La validación de los algoritmos fue realizada por 59 profesionales de la salud (enfermeros, fisioterapeutas y médicos), que trabajaban en la línea de frente del COVID-19, utilizando el método Delphi. Para el análisis de datos se adoptó el Índice de Validez de Contenido y el coeficiente alfa de Cronbach. Resultados En el primer ciclo de evaluación, los ítems de los algoritmos fueron considerados por los jueces como "parcialmente adecuados a totalmente adecuados", y el Índice de Validez de Contenido varió entre 0,87 y 0,92. El coeficiente alfa de Cronbach varió entre 0,95 y 0,96, lo que indica una excelente consistencia interna del cuestionario de evaluación utilizado por los jueces. Después de implementar las mejoras sugeridas por los jueces, se reenviaron los algoritmos para el segundo ciclo de evaluación, en el cual todos los ítems fueron calificados como "adecuado" y "totalmente adecuado", con un resultado del Índice de Validez de Contenido de 1,0. Conclusión Los algoritmos para orientar profesionales de la salud sobre la prevención y el tratamiento de la úlcera por presión en pacientes con COVID-19 en posición prona fueron evaluados por enfermeros, fisioterapeutas y médicos que estaban en la línea de frente de combate al COVID-19 y llegaron a un consenso respecto al contenido en el segundo ciclo de evaluación.

Abstract Objective To develop and validate the content of two algorithms to guide frontline professionals in the prevention and treatment of pressure injuries in COVID-19 patients in prone position. Methods Study conducted between September and November 2021. A literature review was performed in MEDLINE®, SciELO and Lilacs databases to build the algorithms. Articles published between 2011 and 2021 were searched. The validation of algorithms was performed by 59 health professionals (nurses, physical therapists and physicians) who worked on the frontline of COVID-19. The Delphi technique was used, and Content Validity Index and Cronbach's alpha coefficient were adopted for data analysis. Results In the first evaluation cycle, the items of algorithms were considered as "partially adequate to totally adequate" by the judges, and the Content Validity Index ranged between 0.87 and 0.92. Cronbach's alpha coefficient ranged between 0.95 and 0.96, indicating excellent internal consistency of the evaluation questionnaire used by the judges. After implementing the adjustments suggested by judges, the algorithms were sent to a second evaluation cycle, in which all items were judged as "adequate" and "totally adequate", resulting in a Content Validity Index of 1.0. Conclusion Algorithms to guide healthcare professionals in the prevention and treatment of pressure injury in COVID-19 patients in prone position were evaluated by nurses, physical therapists and physicians working on the frontline of COVID-19. They achieved consensus on content in the second evaluation cycle.

Lesão por pressão em pacientes críticos acometidos pela COVID-19: protocolo de prona / Pressure ulcer in critical patients affected by COVID19: prone position protocol / Úlcera por presión en pacientes críticos afectados por COVID-19: protocolo de decúbito prona

Objetivo: avaliar a incidência de lesão por pressão, por localização, o risco de desenvolvimento pela escala de Braden e o uso de protetores, em pacientes críticos em protocolo de prona com Covid-19, em um hospital em Belo Horizonte. Método: trata-se de um estudo observacional, quantitativo, descritivo e prospectivo. Os dados foram coletados através de prontuário eletrônico, no sistema MV, e no sistema AGEIS Nutrition, durante o período entre 12 de abril de 2021 e 13 de agosto de 2021. Resultados: no total de 251 prontuários analisados de pacientes adultos, evidenciou-se 42,2% apresentaram lesão por pressão, sendo a localização mais frequente em zigomático com 50,9%. A maioria dos pacientes utilizaram espuma multicamadas (92%) e 51,4% de pacientes apresentaram risco elevado de lesão. Conclusão: a incidência de lesão por pressão foi de 42,2%. A presença de comorbidades e o risco elevado na escala de Braden podem ter contribuído para a considerável porcentagem.

Objective: to evaluate the incidence of pressure injury, by location, the risk of development by the Braden scale and the use of protectors, in critical patients in a prone protocol with Covid-19, in a hospital in Belo Horizonte. Method: this is an observational, quantitative, descriptive and prospective study. Data were collected through electronic medical records, in the MV system, and in the AGEIS Nutrition system, during the period between April 12 and August 13, 2021. Results: in the total of 251 analyzed medical records of adult patients, it was evidenced 42.2% had pressure injuries, the most frequent location being zygomatic with 50.9%. Most patients used multilayer foam (92%) and 51.4% of patients were at high risk of injury. Conclusion: the incidence of pressure injuries was 42.2%. The presence of comorbidities and the high risk on the Braden scale may have contributed to the considerable percentage.

Objetivo: evaluar la incidencia de lesión por presión, por localización, el riesgo de desarrollo por la escala de Braden y el uso de protectores, en pacientes críticos en protocolo prono con Covid-19, en un hospital de Belo Horizonte. Método: se trata de un estudio observacional, cuantitativo, descriptivo y prospectivo. Los datos fueron recolectados a través de historias clínicas electrónicas, en el sistema MV y en el sistema AGEIS Nutrición, durante el período comprendido entre el 12 de abril de 2021 y el 13 de agosto de 2021. Resultados: en un total de 251 historias clínicas analizadas de pacientes adultos, se evidenció que el 42,2% presentaba lesiones por presión, siendo la localización más frecuente la cigomática con un 50,9%. La mayoría de los pacientes usaban espuma multicapa (92 %) y el 51,4 % de los pacientes tenían un alto riesgo de lesión. Conclusión: la incidencia de lesiones por presión fue del 42,2%. La presencia de comorbilidades y el alto riesgo en la escala de Braden pueden haber contribuido al considerable porcentaje.

Manejo laparoscópico de las hernias ventrales mediante abordaje totalmente extraperitoneal (eTEP): experiencia inicial y resultados a corto plazo / Laparoscopic Management of Ventral Hernias by Totally Extraperitoneal (eTEP) Approach: Initial Experience and Short-Term Results / Manejo laparoscópico de hérnias ventrais usando uma abordagem totalmente extraperitoneal (eTEP): experiência inicial e resultados em curto prazo

Introducción. El manejo de la hernia ventral sigue siendo un desafío para los cirujanos. Su reparación mediante técnicas mínimamente invasivas, como la totalmente extraperitoneal (eTEP) laparoscópica, permite una amplia disección del espacio a reparar, una recuperación postoperatoria más rápida, menor dolor postoperatorio y estancia hospitalaria. El abordaje eTEP es un enfoque novedoso que utiliza el espacio retromuscular para colocar material protésico y fortalecer la pared abdominal. El objetivo es describir los resultados a corto plazo de nuestra experiencia inicial con la técnica eTEP en el manejo de las hernias ventrales. Metodología. Estudio observacional, descriptivo, retrospectivo, donde se incluyen pacientes con el diagnóstico de hernia ventral, sometidos a cirugía laparoscópicaeTEP, entre julio-2021 y junio-2022. Resultados. De un total de 21 pacientes, el 61.9% fueron hombres. El 47.6% tenían sobrepeso y el 52.4% obesidad. Estancia hospitalaria media: 1.6 días. El 66.7% fueron hernias incisionales. Las técnicas quirúrgicas realizadas fueron: Rives-Stoppa (71.4%) asociándose liberación del músculo transverso en el 28.6%. El 19% de los pacientes presentaron complicaciones globales y solo uno fue grave, requiriendo reintervención quirúrgica. Se observó la presencia de seroma clínico en el 9.5% y ecográfico en 57.1%. No se evidenciaron hematomas, infección de herida quirúrgica ni casos de recidiva herniaria. Discusión y conclusiones. El abordaje laparoscópico eTEP Rives-Stoppa, asociado o no a separación posterior de componentes, en el manejo de las hernias ventrales ofrece buenos resultados asociando una baja incidencia de complicaciones postoperatorias, corta estancia hospitalaria, baja incidencia de recidivas herniarias, por lo que podría considerarse una técnica segura y efectiva en el tratamiento de las hernias ventrales.

Introduction. Managing ventral hernia remains a challenge for surgeons. Repairing it using minimally invasive techniques, such as laparoscopic totally extraperitoneal (eTEP), which allows for a wide dissection of the space to be repaired, faster postoperative recovery, less postoperative pain and shorter hospital stay. The eTEP approach is a novel technique that focus on the uses of the retromuscular space to place prosthetic material and strengthen the abdominal wall. The objective is to describe the short-term results of our initial experience with the eTEP technique in the management of ventral hernias. Methodology. Observational, descriptive, retrospective, study, which included patients with a diagnosis of ventral hernia, undergoing laparoscopic eTEP surgery, between July-2021 and June-2022. Results. Of a total of 21 patients, 61.9% were men. 47.6% were overweight and 52.4% were obese. Average hospital stay: 1.6 days. 66.7% were incisional hernias. The surgical techniques performed were: Rives-Stoppa (71.4%) with associated transversus abdominis muscle release in 28.6%. 19% of the patients presented global complications and only one was severe, requiring surgical reintervention. The presence of clinical seroma was observed in 9.5% and ultrasound in 57.1%. There was no evidence of hematomas, surgical wound infection or cases of hernia recurrence. Discussion and conclusions. The laparoscopic-eTEP Rives-Stoppa approach, associated or not with posterior separation of components, in the management of ventral hernias offers good results with a low incidence of postoperative complications, short hospital stay, low incidence of hernia recurrences, so it could be considered a safe and effective technique in the treatment of ventral hernias.

Introdução. O manejo da hérnia ventral continua sendo um desafio para os cirurgiões. Seu reparo por meio de técnicas minimamente invasivas, como a totalmente extraperitoneal (eTEP) laparoscópica, permite ampla dissecção do espaço a ser reparado, recuperação pós-operatória mais rápida, menor dor pós-operatória e menor tempo de internação. A abordagem eTEP é uma nova abordagem que usa o espaço retromuscular para colocar material protético e fortalecer a parede abdominal. O objetivo é descrever os resultados de curto prazo de nossa experiência inicial com a técnica eTEP no manejo de hérnias ventrais. Metodologia. Estudo observacional, descritivo, retrospectivo, longitudinal, que inclui pacientes com diagnóstico de hérnia ventral, submetidos a cirurgia laparoscópica-eTEP, entre julho-2021 e junho-2022. Resultados. De um total de 21 pacientes, 61.9% eram homens; 47.6% estavam com sobrepeso e 52.4% obesos. Tempo médio de internação: 1.6 dias; 66.7% eran hérnias incisionais. As técnicas cirúrgicas realizadas foram: Rives-Stoppa (71.4%) associada à liberação do músculo transverso em 28.6%. 19% dos pacientes apresentaram complicações globais e apenas um foi grave, necesitando de reintervenção cirúrgica. A presença de seroma clínico foi observada em 9.5% e ultrassonográfica em 57.1%. Não houve evidência de hematoma, infecção de ferida cirúrgica ou casos de recidiva de hérnia. Discussão e conclusões. A abordagem laparoscópica eTEP Rives-Stoppa, associada ou não à separação posterior dos componentes, no manejo das hérnias ventrais oferece bons resultados associando baixa incidência de complicações pós-operatórias, curto tempo de internação, baixa incidência de recidivas de hérnias, pelo que pode ser considerada uma técnica segura e eficaz no tratamento das hérnias ventrais.

Anatomía clínica-quirúrgica del plexo venoso vertebral del perro: una revisión de la literatura / Clinical and surgical anatomy of the dog vertebral venous plexus: a literature review

El objetivo de la presente monografía, fue actualizar la anatomía del Plexo Venoso Vertebral (PVV) del perro de relevancia clínico-quirúrgica y asimismo evaluar el cumplimiento de la Nómina Anatómica Veterinaria (NAV). Se realizaron búsquedas electrónicas utilizando 9 bases de datos, donde se revisaron un total de 49 fuentes bibliográficas. De éstas, 20 correspondieron a artículos científicos. El criterio de exclusión fue el de publicaciones con más de 10 años de antigüedad, con excepción de libros de anatomía veterinaria de referencia base. Publicaciones que no estuvieran escritas en inglés, español o portugués, fueron también excluidas. En general, en la literatura revisada, existió consenso de cuáles son los componentes del PVV, junto con una escueta descripción de éste. El componente del PVV que es más ampliamente descrito y con mayor dimensión es el Plexo Vertebral Interno Ventral (PVIV). La función de retorno venoso sanguíneo alternativo hacia el corazón es la más nombrada. La no existencia de válvulas en el PVIV, pudiese ser una condición promotora para la metástasis tumoral a través del PVV. A nivel quirúrgico, la hemorragia del PVV, representa un peligro no despreciable para la vida del paciente. Con respecto a lo revisado y discutido, se puede concluir que: i) a pesar de la escasa descripción anatómica del PVV se pudo comprender cómo éste está compuesto ii) el nivel de evidencia que avala las distintas capacidades funcionales del PVV es bajo, no obstante, la información de la presentación de la hemorragia del PVV en las distintas cirugías es mayor iii) las variadas referencias bibliográficas consultadas no respetaron la NAV actual para describir al PVV.

SUMMARY: This monograph aims to provide an update on the anatomy of the Vertebral Venous Plexus (VVP) of the dog with emphasis on its clinical and surgical relevance and to evaluate compliance of terms in the literature with Nomina Anatomica Veterinaria (NAV). Electronic searches were conducted using 9 databases, where a total of 49 bibliographic sources were reviewed. Of these, 20 consisted of scientific articles. Publications with more than 10 years old were excluded from review, except for basic reference veterinary anatomy books. Publications that were not written in English, Spanish or Portuguese were also excluded. In general, in the literature reviewed, there was consensus on what the components of the VVP are, along with a brief description of VVP. The most widely described component of the VVP is the Ven- tral Internal Vertebral Plexus (VIVP). The function of alternative venous blood return to the heart is the most frequently described. The absence of valves in the VIVP could be a promoting condition for tumor metastasis through the VVP. At the surgical level, VVP hemorrhage represents a non-negligible threat to the patient's survival. With respect to what has been reviewed and discussed, it can be concluded that: i) despite the scarce anatomical description of the VVP, it was possible to understand how it is composed ii) the level of evidence that supports the different functional capacities of the VVP is low, however, the information on the ocurrence of VVP hemorrhage in surgical procedures is greater and iii) the various bibliographical references describing the VVP did not comply with the current NAV.

A STUDY OF CLINICAL PROFILE OF PATIENTS HAVING NONINCISIONAL VENTRAL ABDOMINAL HERNIA

IntroductionAbdominal wall hernias are a common surgical problem. Lakhs of patients are affected eachyear, most commonly presenting with primary ventral, incisional, and inguinal hernias.Whether symptomatic or asymptomatic, hernias commonly cause pain or aestheticallydistressing to patients. These concerns, coupled with the risk of incarceration, are the mostcommon reasons patients seek surgical repair of hernias. The presence of a ventral hernia isitself, an indication for repair. The tension-free repair has revolutionized hernia surgery. Theuse of mesh prosthesis to approximate the fascial defect has resulted in a decrease inrecurrence rates for any hernias.Material and methodsA clinical study of 60 cases of ventral hernia has been done during the period from march2019 to April 2021 on inpatient admitted to tertiary care teaching L.G. hospital, Ahmedabadwith follow up period of 6 months.Results• 60 cases of ventral hernias were studied with follow up a period of 6 months. Commonestventral hernia was umbilical hernia which accounts for 60% of cases. Swelling was the mostcommon complaint in 91.66% pts. Mesh repair is the technique of choice for all ventralhernias with large defect. Though retro rectus mesh placement is more physiological.Laparoscopic approach for ventral hernia repair has advantages of good operative fieldvisibility, lessened duration of hospital stays, minimal postoperative scar. Laparoscopic repairis gaining good acceptance in current era and time. Complications in both open approach andlaparoscopic approach remain same.ConclusionIrrespective of advance nourishment and decreased number of pregnancies as compared tothe past, still abdominal wall hernia is not infrequent. Simultaneously; multiple and effectivesurgical techniques and various planes of mesh placement, have increased cure rate up to100% with minimum serious post operative complication.

Persistence of Ventrolateral Splanchnic Longitudinal Channels

The coeliac trunk is the branch of the abdominal aorta at the level of the twelfth thoracic vertebra. Its branches namely left gastric, common hepatic and splenic arteries supply the primary organs of the supracolic abdominal compartment namely the stomach, pancreas, spleen and liver. In this article, we report case series of three cases in male cadavers aged 65yrs, 60yrs and 70yrs respectively in the Department of Anatomy, Pondicherry Institute of Medical Sciences and MVJ Medical College and Research Institute wherein we discovered that the branching pattern of the coeliac trunk varied from the usual pattern, thus the specimens were photographed to understand further. The observation of first case, common trunk from abdominal aorta showed common hepatic and superior mesenteric artery and left gastric and splenic artery aroused as another common trunk from abdominal aorta. The second case showed the superior mesenteric artery arising from coeliac trunk and the third case was observed the inferior phrenic arteries were arising from coeliac trunk. Knowledge of this variable anatomy may be useful in planning and executing surgical or radiological interventions.

Higher symptom score, larger residual rectocele, and lower rectal compliance predict failure of improvement after surgical treatment of rectocele

Background: Rectocele is a frequent finding in women and is usually asymptomatic. However, it is sometimes associated with symptoms of obstructed defecation syndrome (ODS). While most patients with ODS due to rectocele respond well to conservative treatment, some may require surgical treatment. The aim of the study was to determine the predictors of failure of symptom improvement after rectocele repair. Methods: The study included adult women with rectocele who underwent surgical treatment by transperineal repair (TPR) or transvaginal repair (TVR). The preoperative and postoperative assessment was done using the Wexner constipation score, anorectal manometry, and defecography. Results: A total of 93 female patients with a mean age of 43.7 years were included. Among them, 65.6% of patients underwent TPR and 34.4% underwent TVR; 22 (23.7%) patients reported failure of significant improvement in ODS symptoms after surgery. The independent predictors of failure of improvement were higher preoperative Wexner score (odds ratio, OR: 1.4, 95% confidence interval, CI: 1.09-1.84, p = 0.009), larger residual rectocele after repair (OR: 2.95, 95% CI: 1.43-6.08, p = 0.003), and lower postoperative maximum tolerable volume (OR: 0.949, 95% CI: 0.907-0.992, p = 0.02). The predictive cutoff point for the preoperative Wexner score was 15. Conclusions: Patients with a preoperative Wexner score higher than 15 and larger residual rectocele after surgery may experience little improvement in symptoms after rectocele repair. Although TPR was associated with a poorer relief of symptoms than did TVR; it was not an independent predictor of failure. (AU)

A Comparative Study between E-TEP vs IPOM Hernia Repair

Background: A ventral hernia is a hernia which can be occur at any location along the midline (vertical center) of the abdomen wall. It can be classified as spontaneous (primary) or acquired (secondary). Also, there are basically 3 types of ventral hernia and these are: Epigastric or stomach area hernia, Umbilical or belly button hernia and the Incisional hernia.Material & Methods:This was a prospective observational comparative study. The total sample size for this study 38 and among these 18 cases were from e-TEP and 20 cases were from IPOM. The study period was from December 2019- December 2021. The stratified sampling method was followed for this study as an eligibility criterion for age of the respondents was set for this study.Results:The presence of co-morbidities was found in both e-TEP and IPOM. High blood pressure was seen in 7(38.89%) cases in e-TEP and 8(40%) cases in IPOM and followed by stroke in 4(22.22%) and 5(25%), Hypothyroidism in 1(5.56%) and 1(5%), Cancer in 2(11.11%) and 2(10%), Diabetes in 4(22.225) and 4(20%). Location of Hernia in right 7(38.89%) and 8(40%) and in left side was 11(61.11%) and 12(60%). In assessing the condition of disease, it was found that ventral hernia was in 4(22.22%) and 5(25%), Umbilical hernia in 6(33.33%) and 6(30%), Epigastric hernia 8(44.44%) and 9(45%). The Mean and SD of Defect size of lesion 71.4�.1 and 76�.2.Conclusions:The above study showed that the e-TEP repair had shown promising results and was being widely accepted. It results less presence of co-morbidities and less complications when compared to IPOM repair.

Cuidados de enfermagem e posição prona: revisão integrativa / Atención de enfermería y decúbito prono: revisión integradora / Nursing care and prone position: Integrative review

Objetivo: explorar, na literatura científica, práticas atuais de cuidado de enfermagem ou intervenções para pacientes com síndrome respiratório agudo grave (SRAG) submetidos à posição prona. Síntese do conteúdo: revisão integrativa, na qual foram realizadas buscas nas bases de dados PubMed, CINAHL, Scopus, Web of Science e LILACS em setembro de 2020 e janeiro de 2022, sem recorte temporal, por meio da questão deste estudo: "Quais são os cuidados de enfermagem para pacientes com SRAG submetidos à posição prona?". Foram selecionados 15 artigos, a partir da busca nas bases de dados. Após a leitura, os cuidados encontrados foram categorizados em alinhamento do corpo para a prevenção de lesões neuromusculares, cuidados com equipamentos diversos, cuidados tegumentares e recomendações neurológicas. Conclusões: o enfermeiro deve ter conhecimento sobre as implicações e as complicações de se manter um paciente na posição prona. Tal conhecimento permitirá tomadas de decisões na construção ou no seguimento de protocolos institucionais que contribuam com a prevenção de riscos e resultem em melhores desfechos para o paciente.

Objetivo: explorar dentro de la literatura científica las prácticas o intervenciones actuales del cuidado de enfermería para los pacientes con síndrome respiratorio agudo grave (SRAG) sometidos a la posición de decúbito prono. Síntesis de contenido: revisión integradora mediante búsquedas en las bases de datos Pubmed, CINAHL, Scopus, Web of Science y LILACS, entre septiembre de 2020 y enero de 2022, sin recorte temporal, a través de la pregunta: ¿cuáles son los cuidados de enfermería para los pacientes con SRAS sometidos a la posición de decúbito prono? En total, se seleccionaron 15 artículos tras la búsqueda en bases. Tras la lectura de estos documentos, se observó que los cuidados identificados se podían categorizar en lineación corporal para prevenir lesiones neuromusculares, cuidados con equipos diversos, cuidados cutáneos y recomendaciones neurológicas. Conclusiones: el profesional de enfermería debe conocer las implicaciones y complicaciones de mantener a los pacientes en decúbito prono. Este conocimiento permitirá tomar decisiones para la construcción o el seguimiento de protocolos institucionales que contribuyan a la prevención de riesgos y generen mejores resultados para el paciente.

Objective: To explore within scientific literature the current nursing care practices or interventions for patients with severe acute respiratory syndrome (SARS) submitted to prone positioning. Content synthesis: Integrative review carried out in Pubmed, CINAHL, Scopus, Web of Science and LILACS databases from September 2020 to January 2022, with no time cutting, addressing the question: What are the nursing care practices for patients with SARS and placed under prone positioning? A total of 15 articles were selected from the database search. After analysis, it was observed that the care provided by nursing professionals could be categorized in body alignment to prevent neuromuscular injuries, care with various equipment, cutaneous care, and neurological recommendations. Conclusions: Nurses must acknowledge the implications and complications of keeping a patient in the prone position. Such awareness will allow decision making in the development or follow-up of institutional protocols that contribute to risk prevention and that will result in better outcomes for patients.

Avaliação da resposta à posição prona em pacientes acordados com COVID-19 / Evaluación de la respuesta a la posición prono en pacientes despiertos hospitalizados con COVID-19 / Evaluation of the response to prone positioning in awake patients with COVID-19

RESUMO O objetivo deste estudo foi avaliar os efeitos agudos dos tipos de resposta à posição prona (PP) em pacientes acordados com COVID-19. Realizou-se um estudo prospectivo, unicêntrico, com 32 pacientes acordados com COVID-19, e com uso de oxigênio suplementar. A resposta à posição prona foi feita durante 30 minutos. Após o teste, os pacientes foram orientados a permanecer na PP diariamente, de acordo com a tolerância de cada um. As variáveis saturação de oxigênio (SpO2), frequência cardíaca, frequência respiratória, índice ROX e taxa de internação na unidade de terapia intensiva (UTI) foram registradas. Um total de 25 pacientes (78,1%) responderam à PP, sendo que 13 (40,6%) apresentaram resposta persistente e 12 (37,5%) transitória. Sete pacientes (21,9%) não responderam. Os pacientes com respostas persistente e transitória tiveram aumento da SpO2 (p<0,001) e do índice ROX (p=0,001 e p<0,001, respectivamente), e redução das frequências cardíaca (p=0,01 e p=0,02, respectivamente) e respiratória (p=0,003 e p=0,001, respectivamente). Não houve diferença em nenhuma das variáveis nos pacientes que não responderam à PP. A taxa de internação na UTI dos pacientes que apresentaram resposta persistente, transitória ou que não responderam foi de 30,8% (4/13), 41,7% (5/12) e 57,1% (4/7), respectivamente. Conclui-se que os pacientes que responderam à PP apresentaram redução das frequências cardíaca e respiratória e aumento do índice ROX, sem interferir na taxa de internação.

RESUMEN El propósito de este estudio fue evaluar los efectos agudos de los tipos de respuesta a la posición prona (PP) en los pacientes despiertos hospitalizados por COVID-19. Se realizó un estudio prospectivo, unicéntrico, con la participación de 32 pacientes hospitalizados por COVID-19 y con el uso de oxígeno suplementario. La respuesta a la posición prono se realizó durante 30 minutos. Después de la prueba, se orientó que los pacientes permanezcan en la PP diariamente según su tolerancia. Se registraron las variables saturación de oxígeno (SpO2), frecuencia cardiaca, frecuencia respiratoria, índice ROX y tasa de ingreso a la unidad de cuidados intensivos (UCI). Un total de 25 pacientes (78,1%) respondieron a la PP, de los cuales 13 (40,6%) tuvieron respuesta persistente y 12 (37,5%) presentaron respuesta transitoria. Siete pacientes (21,9%) no respondieron. Los pacientes con respuestas persistentes y transitorias presentaron un incremento de la SpO2 (p<0,001) y el índice ROX (p=0,001 y p<0,001, respectivamente), y una reducción de las frecuencias cardiaca (p=0,01 y p=0,02, respectivamente) y respiratoria (p=0,003 y p=0,001, respectivamente). No hubo diferencia en ninguna de las variables en los pacientes que no respondieron a la PP. La tasa de ingreso en la UCI de pacientes que tuvieron una respuesta persistente, transitoria o que no respondieron a la PP fue de un 30,8% (4/13), un 41,7% (5/12) y un 57,1% (4/7), respectivamente. Se concluye que los pacientes que respondieron a la PP tuvieron una reducción de las frecuencias cardiaca y respiratoria, e incremento del índice ROX, sin interferir en la tasa de hospitalización.

ABSTRACT This study aims to evaluate the acute effects of the responses to prone positioning (PP) in awake patients with COVID-19. A prospective, single-centered study, using supplemental oxygen, was conducted with 32 awake patients with COVID-19. The response to PP was performed for 30 minutes. According to their tolerance, the patients were instructed to daily remain in PP. The variables for oxygen saturation (SpO2), heart rate, respiratory rate, ROX index and intensive care unit (ICU) admission rate were registered. In total, 25 patients (78.1%) responded to PP, with 13 (40.6%) showing persistent response and 12 (37.5%) showing transient response. Seven patients (21.9%) did not respond. Patients with persistent and transient responses increased SpO2 (p<0.001) and ROX index (p=0.001 and p<0.001, respectively), and reduced heart rate (p=0.01 and p=0.02, respectively), and respiratory rate (p=0.003 and p=0.001, respectively). The variables were similar in patients who did not respond to PP. The ICU admission rate of patients who had persistent or transient response, or did not respond was 30.8% (4/13), 41.7% (5/12), and 57.1% (4/7), respectively. The patients who responded to PP showed reduced heart and respiratory rates and increased ROX index, without interfering in the hospitalization rate.

Anatomical characteristics of human hepatic anterior fissure vein / 中华消化外科杂志

Objective:To investigate the anatomical characteristics of human hepatic anterior fissure vein.Methods:The retrospective and descriptive study was used. A total of 22 adult cadaver specimens were collected from the Department of Human Anatomy of Harbin Medical University from March 2018 to March 2021. There were 15 males and 7 females, aged 45(range, 18?75)years. Observation indicators: (1) recognition rate of hepatic anterior fissure vein and the location of hepatic anterior fissure vein merging into hepatic vein; (2) length of hepatic anterior fissure vein and the opening diameter of hepatic anterior fissure vein merging into hepatic vein; (3) location of hepatic anterior fissure vein and the ventral hepatic vein of segment Ⅷ of liver (V8v) as well as V8v condition; (4) relationship among hepatic anterior fissure vein, anterior ventral portal vein and anterior dorsal portal vein. Measurement data with normal distribution were represented as Mean± SD, and t test was used for comparison between groups. Measurement data with skewed distribution were represented as M(range), and count data were expressed as absolute numbers or percentages. Results:(1) Recognition rate of hepatic anterior fissure vein and the location of hepatic anterior fissure vein merging into hepatic vein. The recognition rate of hepatic anterior fissure vein of 22 liver samples was 90.9% (20/22). There were 9.1%(2/22) of liver samples without hepatic anterior fissure vein. The proportions of hepatic anterior fissure vein merging into proximal middle hepatic vein and proximal right hepatic vein were 19/20 and 1/20, respectively. There was no liver sample with hepatic anterior fissure vein merging into distal middle hepatic vein and distal right hepatic vein. (2) Length of hepatic anterior fissure vein and the opening diameter of hepatic anterior fissure vein merging into hepatic vein. In the 20 liver samples with hepatic anterior fissure vein, the length of hepatic anterior fissure vein was (6.41±1.26)cm, and the opening diameter of hepatic anterior fissure vein merging into hepatic vein was (0.38±0.10)cm. (3) Location of anterior fissure vein and the V8v and V8v condition. In the 22 liver samples, there were 25 V8v branches merging into the proximal middle hepatic vein, with the V8v length as (3.83±0.36)cm and the V8v diameter as (0.16±0.08)cm. In the 17 liver samples with both hepatic anterior fissure vein and V8v, the proportion of V8v merging into hepatic anterior fissure vein and then into middle hepatic vein was 14/17, the proportion of hepatic anterior fissure vein and V8v merging into middle hepatic vein separately was 3/17, and there was no liver sample with hepatic anterior fissure vein merging into right hepatic vein and V8v merging into middle hepatic vein. (4) Relationship among hepatic anterior fissure vein, anterior ventral portal vein and anterior dorsal portal vein. Of the 20 liver samples with hepatic anterior fissure vein, the hepatic anterior fissure vein of 16 liver samples could be used as the demarcation mark of anterior ventral segment and anterior dorsal segment of hepatic right anterior region. The distance between the hepatic anterior fissure vein and anterior ventral portal vein was (1.40±0.43)cm, and that between the hepatic anterior fissure vein and anterior dorsal portal vein was (1.46±0.63)cm, showing no significant difference between them ( t=1.00, P>0.05). Conclusion:The hepatic anterior fissure vein exists in most normal adult livers, and it mostly merges into proximal middle hepatic vein. The hepatic anterior fissure vein can be identified by the condition of V8v. The hepatic anterior fissure vein can be used as the demarcation mark of anterior ventral segment and anterior dorsal segment of hepatic right anterior region.