Application of electromagnetic-guided placement of nasoenteral feeding tubes among aged bedridden patients / 中华护理杂志

Objective To investigate the application effect of electromagnetic navigation bedside nasoenteral intubation technology in elderly bedridden patients.Methods A total of 92 elderly patients with tube feeding in bed in a tertiary A hospital in Beijing from June 2021 to December 2022 were selected by convenience sampling method,and they were divided into an experimental group and a control group with 46 patients in each group by random number table method.The experimental group adopted the electromagnetic navigation bedside nasoenteral catheterization technique and the control group adopted the blind catheterization method.The total success rate of catheterization,the success rate of the first catheterization,the time taken for catheterization,the proportion of catheter tip reaching jejunum,and the incidence of catheter-related complications were compared between the 2 groups.Results There were no shedding cases in both groups.The success rate of total catheterization was 95.7％in the experimental group and 80.4％in the control group.The success rate of first catheterization was 95.7％in the experimental group and 71.7％in the control group.The time taken for catheterization was(12.37±4.19)min in the experimental group and(19.22±5.48)min in the control group.The proportion of catheter tip reaching the jejunum was 60.9％in the experimental group and 28.3％in the control group.The above data were compared between the 2 groups,and the differences were statistically significant(P＜0.05).In terms of the incidence of catheter-related complications,the incidence of epistaxis in the experimental group was 6.5％and it was 21.7％in the control group,and the difference was statistically significant(P=0.036).The positive rate of fecal occult blood test was 2.2％in the experimental group and 17.4％in the control group,and the difference was statistically significant(P=0.030).There was no significant difference in the incidence of nausea,vomiting and abdominal distension between the 2 groups(P＞0.05).No serious complications such as catheter ectopic placement,pneumothorax and perforation occurred in the 2 groups.Conclusion The application of electromagnetic navigation bedside nasoenteral intubation technology for elderly bedridden patients has a high success rate and takes a short time,which can improve the proportion of catheter tip reaching the jejunum and reduce the incidence of epistaxis and fecal occult blood test.

A systematic review on the current attitudes and clinical practices on the use of cuffed and uncuffed endotracheal tubes in pediatric anesthesia

Background@#For several decades now, the use of uncuffed endotracheal tube (ETT) is the gold standard in providing airway and ventilatory support to children under anesthesia. However, there has been a change in focus from the application of uncuffed ETT to cuffed ETT among children, and this matter has been debated for years. In fact, several studies have shown that even across and within countries, the attitudes and practices of anesthesiologists on the use of types of endotracheal tubes differed.@*Objective@#To describe the current attitudes and practices of anesthesiologists regarding the use of uncuffed or cuffed ETT for children.@*Methods@#A systematic review of observational studies on the current attitudes and practices of pediatric anesthesiologists regarding the use of cuffed and uncuffed ETT was conducted from May to November 2020. Cochrane reviews, Medline, Pubmed, and EMBASE were searched and yielded five relevant studies.@*Results@#The use of cuffed ETT ranged between 11%-61% in the included studies and all reported that there were no consensus or standard on whether cuffed or uncuffed ETT was better. Reported factors for cuffed ETT use included: 1) Personal choice, 2) Department protocol, 3) Availability of resources, and 4) Specific conditions such as obesity, planned or emergency procedure, and reduced lung compliance. In terms of ETT size, reported criteria were: 1) Use of a formula, 2) Use of abacus/calculator, and 3) In relation to the fifth finger's width.@*Conclusions@#The current systematic review demonstrated that there is wide variation in current attitudes and practices of anesthesiologists regarding the use of uncuffed or cuffed endotracheal tubes in children. Likewise, factors affecting choice of ETT and criteria for selection varied in the published literature. The results of this systematic review highlight the need for a standard guideline to help clinicians choose if cuffed or uncuffed ETT is better in certain scenarios and to help them decide in selecting the most appropriate ETT size.

Cryoablation Catheter Used in the Surgical Treatment of Atrial Fibrillation May Treat Chest Tube Pain: Engin Technique

ABSTRACT Postoperative pain after cardiac surgery plays an important role in the patient's recovery process. In particular, pain at the chest tube site can negatively affect the comfort and recovery of these patients. Effective pain control minimizes the risk of many complications. Oral and intravenous analgesics, epidural anesthesia, paravertebral block, and intercostal nerve blockade are used in chest tube pain control. We routinely use the surgical cryoablation method in the presence of atrial fibrillation in the preoperative period of cardiac surgery in our clinic. Here we aimed to describe our method of using the cryoablation catheter for intercostal nerve blockade.

An Ayurvedic Approach in Infertility w.s.r to Tubal Blockage-A Case Report

Vandhyatva (infertility) is failure to conceive or give birth or experiencing Garbha Strava or Garbha pata (repeated abortion). Disturbed lifestyle, usage of contraceptives, stress, genetic problems, alcohol consumption and smoking addiction increases such cases day by day. Nowadays fallopian tube blockage has become one of the burning issues of female infertility. According to Ayurveda, successful conception depends upon Ritu, Kshetra, Ambu and Beeja. Beejagrahana is unable due to tubal blockage (Sanga Srotodusti of Arthavavaha) leads to failure of conception. Panchakarma plays an important role in treating female infertility and Uttara Basti is one of the best (Panchkarma therapy for the infertility treatment in Ayurveda). It detoxifies the uterine cavity and fallopian tubes, which clear the Srothoavarodha. Uttarbasti along with internal medication helps in Vata Dosha saman and remove the Sanga srotodusti. A diagnosed case of infertility due to bilateral tubal blockage, visited our clinic for treatment of tubal blockage and consequent infertility. Here is the case presentation of successful treatment with Ayurveda medicines and Uttara basti.

Laparoscopic evaluation of female genital tuberculosis in infertility: An observational study

Background & objectives: Female genital tuberculosis (FGTB) is an important variety of extrapulmonary TB causing significant morbidity, especially infertility, in developing countries like India. The aim of this study was to evaluate the laparoscopic findings of the FGTB. Methods: This was a cross-sectional study on 374 cases of diagnostic laparoscopy performed on FGTB cases with infertility. All patients underwent history taking and clinical examination and endometrial sampling/biopsy for acid-fast bacilli, microscopy, culture, PCR, GeneXpert (only last 167 cases) and histopathological evidence of epithelioid granuloma. Diagnostic laparoscopy was performed in all the cases to evaluate the findings of FGTB. Results: Mean age, parity, body mass index and duration of infertility were 27.5 yr, 0.29, 22.6 kg/m2 and 3.78 years, respectively. Primary infertility was found in 81 per cent and secondary infertility in 18.18 per cent of cases. Endometrial biopsy was positive for AFB microscopy in 4.8 per cent, culture in 6.4 per cent and epithelioid granuloma in 15.5 per cent. Positive peritoneal biopsy granuloma was seen in 5.88 per cent, PCR in 314 (83.95%) and GeneXpert in 31 (18.56%, out of last 167 cases) cases. Definite findings of FGTB were seen in 164 (43.86%) cases with beaded tubes (12.29%), tubercles (32.88%) and caseous nodules (14.96%). Probable findings of FGTB were seen in 210 (56.14%) cases with pelvic adhesions (23.52%), perihepatic adhesions (47.86%), shaggy areas (11.7%), pelvic adhesions (11.71%), encysted ascites (10.42%) and frozen pelvis in 3.7 per cent of cases. Interpretation & conclusions: The finding of this study suggests that laparoscopy is a useful modality to diagnose FGTB with a higher pickup rate of cases. Hence it should be included as a part of composite reference standard.

Case of Left Inguinal Hernia with an Unknown Syndrome

Ovaries and Fallopian Tubes are rarely found as content of indirect Inguinal Hernia even though Inguinal Hernia is a common entity encountered in surgeons daily practice. We report a case of 13 year old female presented with Left Indirect Irreducible Inguinal Hernia with Fallopian Tube and Ovary as a content along with some rare findings of unilateral renal agenesis along with C7 Bifida vertebrae

Cuidados de enfermagem ao paciente adulto com drenagem torácica: protocolo de scoping review / Nursing care to adult patient with chest drainage: scoping review protocol

OBJETIVO: mapear os cuidados de enfermagem empregados aos pacientes adultos com drenagem torácica internados em terapia intensiva. MÉTODO: scoping review a ser conduzida conforme o Joanna Briggs Institute, com a seguinte questão de pesquisa: "quais são os cuidados de enfermagem indicados aos pacientes adultos com drenagem torácica internados em terapia intensiva?". A busca será desenvolvida em cinco bases de dados: Pubmed, Scopus, Embase, BVS e Web of Science, e os achados serão geridos com o auxílio do software Rayyan. Serão incluídos estudos quantitativos e qualitativos, artigos de revisão, dissertações, teses, diretrizes clínicas e protocolos terapêuticos sobre a temática, incluindo a literatura cinzenta. Será descrito o número total de fontes de evidência encontradas e selecionadas. Através de uma narrativa, será detalhado o processo de decisão da inclusão dos estudos. Os principais achados deverão estar descritos em consonância com o objetivo e os resultados relacionados à questão de pesquisa.

OBJECTIVE: to map nursing care employed to adult patients with chest drainage admitted to intensive care. METHOD: scoping review to be conducted according to the Joanna Briggs Institute, with the following research question: "What are the nursing cares indicated to adult patients with chest drainage admitted to intensive care?". The search will be developed in five databases: Pubmed, Scopus, Embase, BVS and Web of Science, and the findings will be managed with the support of Rayyan software. Quantitative and qualitative studies, review articles, dissertations, theses, clinical guidelines and therapeutic protocols on the subject will be included, including gray literature. The total number of sources of evidence found and selected will be described. Through a narrative, the decision-making process of the inclusion of the studies will be detailed. The main findings must be described in line with the objective and the results related to the research question.

Ooforosalpingitis xantogranulomatosa. Comunicación de caso

La inflamación xantogranulomatosa del tracto genital femenino es infrecuente y es aún más rara en las trompas de Falopio y ovarios. Se presenta un caso de ooforosalpingitis xantogranulomatosa en una paciente femenina de 45 años quien asistió a consulta por presentar dolor en fosa iliaca izquierda acompañado de fiebre. La exploración bimanual mostró útero ligeramente aumentado de tamaño con masa anexial izquierda firme, no dolorosa, adherida al útero y con limitada movilidad. La evaluación ecográfica transvaginal determinó tumoración ovárica izquierda, heterogénea con paredes gruesas e irregulares con múltiples septos y ecos internos sin visualizar el ovario. Durante la cirugía, se encontraron adherencias densas desde la masa hacia la pared lateral pélvica, fosa ovárica y asas intestinales. El útero estaba desplazado por tumoración anexial quística izquierda, de color blanco grisáceo y paredes gruesas que drenaba líquido purulento fétido. El diagnóstico definitivo fue ooforosalpingitis xantogranulomatosa. Esta condición es un proceso inflamatorio poco frecuente que plantea dilemas diagnósticos. Sus manifestaciones clínicas y características de estudios por imágenes pueden simular una neoplasia pélvica maligna, por lo que es necesario un alto índice de sospecha para su diagnóstico, como diagnóstico diferencial en pacientes con tumoraciones ováricas quísticas complejas. El examen histopatológico es el estándar de oro para el diagnóstico.

Xanthogranulomatous inflammation of the female genital tract is infrequent and is even rarer in fallopian tubes and ovaries. We present a case of xanthogranulomatous oophorosalpingitis in a 45-year-old female patient who consulted for left iliac fossa pain accompanied by fever. Bimanual examination revealed a slightly enlarged uterus with a firm, non-painful left adnexal mass, adherent to the uterus and with limited mobility. Transvaginal ultrasound evaluation showed a heterogeneous left ovarian tumor with thick and irregular walls, multiple septa and internal echoes without visualization of the ovary. During surgery, dense adhesions were found from the mass to the pelvic lateral wall, ovarian fossa, and bowel loops. The uterus was displaced by a thick-walled, grayish-white, cystic left adnexal tumor draining foul-smelling purulent fluid. The definitive diagnosis was xanthogranulomatous oophorosalpingitis. This condition is a rare inflammatory process that poses diagnostic dilemmas. Its clinical manifestations and imaging features may mimic a malignant pelvic neoplasm, so a high index of suspicion is necessary for its diagnosis, as a differential diagnosis in patients with complex cystic ovarian tumors. Histopathological examination is the gold standard for diagnosis.

Application effects of thoracoscopic resection of a pulmonary bulla without tube thoracostomy / 中国基层医药

Objective:To investigate the application effects of thoracoscopic resection of a pulmonary bulla without tube thoracostomy.Methods:A total of 60 patients who underwent thoracoscopic resection of a pulmonary bulla from January 2019 to January 2021 in Urumqi Youai Hospital were included in this study. They were randomly divided into an observation group and a control group ( n = 30/group). Tube thoracostomy was performed in the control group but not in the observation group. Oxygenation index measured at 24 hours, pain score measured at 24, 48 and 72 hours after surgery, complications, hospital stay, and total hospitalization expense were compared between the two groups. Results:There was no significant significance in oxygenation index measured at 24 hours between the two groups ( P > 0.05). At 24, 48 and 72 hours after surgery, pain score in the observation group was (2.6 ± 1.2) points, (1.5 ± 0.8) points, and (0.9 ± 1.1) points, respectively, which were significantly lower than (4.5 ± 1.4) points, (3.8 ± 1.5) points, (2.8 ± 1.7) points in the control group ( t = 1.34, 1.13, 0.92, all P < 0.05). The total incidences of postoperative pleural effusion and complications in the observation group were 3.3% (1/30) and 20.0% (6/30), respectively, which were significantly lower than 26.7% (8/30) and 46.7% (14/30) in the control group ( χ2 = 6.40, 4.25, both P < 0.05). The postoperative hospitalization time and total hospitalization expense in the observation group were (3.4 ± 0.8) days and (1.1 ± 0.3) × 10 000 yuan, respectively, which were significantly shorter or less than (6.5 ± 1.4) days and (1.4 ± 0.5) × 10 000 yuan in the control group ( t = 10.22, -1.88, both P < 0.05). Conclusion:Thoracoscopic resection of a pulmonary bulla without tube thoracostomy is feasible and safe, which has a certain promotion value.

Plasma Calcium Level and C-Reactive Protein Albumin Ratio Affect Severe Bleeding After Coronary Artery Bypass Grafting

ABSTRACT Objective: In this study, we aimed to determine whether plasma calcium level and C-reactive protein albumin ratio (CAR) as well as other demographic and hematological markers are related in predicting severe bleeding after coronary artery bypass grafting (CABG). Methods: A total of 227 adult patients who underwent CABG at our hospital between December 2021 and June 2022 were prospectively studied. Total amount of chest tube drainage was evaluated within the first 24 hours postoperatively or until the patient was re-explored for bleeding. The patients were divided into two groups - Group 1, patients with low amount of bleeding (n=174), and Group 2, patients with severe bleeding (n=53). Univariate and multivariate regression analyzes were performed to determine independent parameters related to severe bleeding within the first 24 hours after surgery. Results: When the groups were compared in terms of demographic, clinical, and preoperative blood parameters; cardiopulmonary bypass time and serum C-reactive protein (CRP) levels were found to be significantly higher in Group 2 compared to the low bleeding group. In addition, lymphocytes, hemoglobin, calcium, albumin, and CAR were found to be significantly lower in Group 2. In multivariate analysis, calcium, albumin, CRP, and CAR were found to be independent predictors of significant association with excessive bleeding. A cut-off value of 8.7 (94.3% sensitivity and 94.8% specificity) for calcium and 0.155 (75.4% sensitivity and 80.4% specificity) for CAR predicted excessive bleeding. Conclusion: Plasma calcium level, CRP, albumin, and CAR can be used to predict severe bleeding after CABG.

Hernia inguinal tubo-ovárica izquierda estrangulada

La hernia inguinal indirecta (HHI) es la anomalía congénita más frecuente en la infancia y niñez. En las niñas, las HII deslizantes contienen principalmente el ovario con o sin trompa de Falopio. Presentamos el caso de una niña de 6 meses, que acude por tumoración inguinal izquierda, irreductible, asociada a vómitos. Es intervenida de emergencia con diagnóstico de hernia inguinal indirecta izquierda complicada, conteniendo trompa de Falopio y ovario izquierdo gangrenados. Este tipo de hernia tiene una incidencia más alta en prematuros y de sexo femenino menores de un año. La ecografía preoperatoria puede ser útil para el diagnóstico. El procedimiento para la reparación es la herniorrafia clásica con ligadura alta del saco herniario, a través de un abordaje inguinal.

Indirect inguinal hernia (IHH) is the most frequent congenital anomaly in infancy and childhood. In girls, the sliding IIHs contain mainly the ovary with or without a fallopian tube. We present the case of a 6-month-old girl who was presented with an irreducible left inguinal tumor associated with vomiting. She was operated of emergency with a diagnosis of complicated left indirect inguinal hernia containing gangrenous fallopian tube and left ovary. This type of hernia has a higher incidence in prematures and females under one year of age. Preoperative ultrasound may be helpful for diagnosis. The repair procedure is the classic herniorrhaphy with high ligation of the hernia sac, through an inguinal approach.

Prevalence of precursor lesions (P53 signature, SCOUT, STIL, STIC) in fallopian tubes resected for non-neoplastic causes

Background: High-grade pelvic serous carcinoma is a common cause of death in women worldwide and India. Recent evidence has clearly implicated the changes in the mucosa of the fimbrial end of the fallopian tube in its pathogenesis. Objective: 1) To study histopathology features of surgically resected specimens of fallopian tubes received with non-neoplastic lesions of the uterus and ovary for the presence of any precursor lesions [secretory cell outgrowth (SCOUT), serous tubal intraepithelial lesion (STIL), p53 signatures, and serous tubal intraepithelial carcinoma (STIC)]. 2) To confirm the findings with immunohistochemistry. 3) To correlate the prevalence of precursor lesions with clinical parameters and benign lesions of the uterus and ovaries. Materials and Methods: Assessment of histopathological changes in 100 specimens of distal fallopian tubes was done using the sectioning and extensive examination of the fimbrial end (SEE-FIM) protocol. H and E stain followed by immunohistochemistry for Bcl-2, p53, and Ki-67. The statistical significance of the difference in the mean values of precursor areas was evaluated by an unpaired t-test. Results: Among 100 specimens taken on H and E, precursor lesions were suspected in 49% of the cases. SCOUT, suspicious for STIC, suspicious for STIC with areas of SCOUT, and unequivocal for STIC with areas of SCOUT were seen in 8%, 4%, 33%, and 4% of the cases, respectively. However, on IHC, SCOUTS were confirmed in 45% of the cases, p53 signature in 2%, STIL in 9%, and STIC in 4% of the cases. Conclusion: Sectioning and extensive examination of the fimbrial end (SEE-FIM) should be routinely done as it provides the opportunity to detect the early malignant changes. It may help in evolving the strategies for early detection, management, and reducing mortality.

Alteraciones genitales en la infección por leptospiras en ratas Wistar gestadas / Genital alterations in leptospiras infection in pregnant Wistar rats

RESUMEN Introducción: la leptospirosis en Cuba se presenta de forma endémica, y a veces de forma epidémica, por lo que es un problema de salud. Su efecto sobre los genitales internos, en gestantes, ha sido poco tratado por los investigadores. Objetivo: describir las principales alteraciones en los genitales internos de ratas Wistar gestadas infestadas por leptospiras. Métodos: se realizó un estudio experimental en ratas Wistar preñadas: siete grupos con tres animales cada uno: un control negativo y seis casos con dosis de una concentración bacteriana de 300 millones de Leptospiras por mL; se inocularon dos mililitros a cada animal al cuarto día de gestadas por 17 meses. Se tomaron los genitales internos de todas las ratas el día 20 de la gestación, estos fueron procesados en parafina y teñidos con hematoxilina/eosina. Resultados: se observaron alteraciones en útero, ovarios y trompas; el mayor número de lesiones se presentaron en útero mientras que en ovarios y trompas se visualizaron la misma cantidad de lesiones. Conclusiones: la leptospirosis infectó los genitales internos con la producción de quistes, necrosis, abscesos, ooforitis y microhemorragias en ovarios; congestión vascular y hemorragias en las trompas uterinas y endometritis, hemorragias, miometritis, piometristis, perimetritis y congestión vascular en el útero. Predominaron las alteraciones congestivas y hemorrágicas.

ABSTRACT Introduction: leptospirosis in Cuba occurs endemically, and sometimes epidemically, making it a health problem. Its effect on internal genitalia in pregnant women has been little treated by researchers. Objective: to describe the main alterations in the internal genitalia of pregnant Wistar rats infested by leptospiras. Methods: an experimental study was carried out in pregnant Wistar rats: 7 groups with three animals each: 1 negative control and 6 cases with doses of a bacterial concentration of 300 million Leptospira per mL; each animal was inoculated with two milliliters on the fourth day of pregnancy for 17 months. The internal genitalia of all rats were taken on day 20 of gestation, processed in kerosene and stained with hematoxylin/eosin. Results: alterations were observed in the uterus, ovaries and tubes; the greatest number of lesions was present in the uterus while the same number of lesions was visualized in the ovaries and tubes. Conclusions: leptospirosis infected the internal genitalia producing cysts, necrosis, abscesses, oophoritis and microhemorrhages in the ovaries; vascular congestion and hemorrhages in the uterine tubes and endometritis, hemorrhages, myometritis, pyometristis, perimetritis and vascular congestion in the uterus. Congestive and hemorrhagic alterations predominated.

Efecto inmediato de dos ejercicios con tracto vocal semiocluido en el contacto glótico de usuarios ocupacionales de la voz / Immediate effect of two semi-occluded vocal tract exercises in glottal contact of occupational voice users

Introducción. Los docentes son usuarios ocupacionales de la voz con alto riesgo de desarrollar patologías vocales a causa de su labor. Para enfrentar esta proble-mática, suelen usarse ejercicios con tracto vocal semiocluido (TVSO), estrategia de educación/rehabilitación empleada para generar un cambio en el patrón de vibración de los pliegues vocales, minimizando el riesgo de lesión vocal al reducir el estrés de colisión al que se someten los tejidos. Diversos reportes han indicado que este tratamiento tiene efectos en el cociente de cierre (CQ), medida indirecta del estrés de colisión.Objetivo. Examinar el efecto fisiológico de dos ejercicios con TVSO en la actividad laríngea de profesores con esfuerzo vocal constante pero sin patología vocal. Metodología. Se registraron muestras de 43 profesores antes, durante y después de la realización de dos ejercicios con TVSO (vibración lingual y fonación en tubos). Las muestras de electroglotografía se analizaron para obtener el CQ. Resultados y conclusión. Se observó una diferencia significativa al comparar los valores del CQ antes y durante la realización de ambos ejercicios. No se encontraron cambios en este parámetro después de ejecutar la actividad. Estos hallazgos concuer-dan con reportes previos en los cuales el CQ tiende a aumentar durante la fonación en tubos; contrariamente, la realización de la vibración lingual tiende a decrecer el valor del CQ. Es posible que este comportamiento se deba a los mecanismos biome-cánicos particulares de cada ejercicio

Introduction. Teachers are occupational voice users with high risk of developing vocal pathologies due to their work. To face this situation, it is common the use of semi-occluded vocal tract (SOVT) exercises, a strategy of voice education/rehabil-itation implemented to induce a change in the vibration pattern of the vocal folds, mitigating, therefore, the risk of vocal lesion by reducing the collision stress applied to tissues. A variety of reports have indicated that this treatment has effects in the closed quotient (CQ), an indirect measure of collision stress. Aim. The purpose of this study was to examine the physiological effect of two dif-ferent SOVT exercises in larynx activity of teachers with constant vocal effort but without vocal pathology. Methods. 43 samples of teachers were recorded before, during and after executing two SOVT exercises (tongue trill and tube phonation). Electroglottographic samples were analyzed in order to obtain CQ. Results and conclusion. Both exercises had a significant difference of CQ scores when before and during conditions were compared. Any difference was found on this parameter after executing the activity. These findings agree with previous reports where CQ tends to increase during phonation through resonance tubes; on the con-trary, execution of tongue trill tends to decrease CQ values. This behavior might be because of the particular biomechanical mechanisms of each exercise

Damage control surgery in lung trauma / Cirugía de control de daños del trauma pulmonar

Abstract Damage control techniques applied to the management of thoracic injuries have evolved over the last 15 years. Despite the limited number of publications, information is sufficient to scatter some fears and establish management principles. The severity of the anatomical injury justifies the procedure of damage control in only few selected cases. In most cases, the magnitude of the physiological derangement and the presence of other sources of bleeding within the thoracic cavity or in other body compartments constitutes the indication for the abbreviated procedure. The classification of lung injuries as peripheral, transfixing, and central or multiple, provides a guideline for the transient bleeding control and for the definitive management of the injury: pneumorraphy, wedge resection, tractotomy or anatomical resection, respectively. Identification of specific patterns such as the need for resuscitative thoracotomy, or aortic occlusion, the existence of massive hemothorax, a central lung injury, a tracheobronchial injury, a major vascular injury, multiple bleeding sites as well as the recognition of hypothermia, acidosis or coagulopathy, constitute the indication for a damage control thoracotomy. In these cases, the surgeon executes an abbreviated procedure with packing of the bleeding surfaces, primary management with packing of some selected peripheral or transfixing lung injuries, and the postponement of lung resection, clamping of the pulmonary hilum in the most selective way possible. The abbreviation of the thoracotomy closure is achieved by suturing the skin over the wound packed, or by installing a vacuum system. The management of the patient in the intensive care unit will allow identification of those who require urgent reintervention and the correction of the physiological derangement in the remaining patients for their scheduled reintervention and definitive management.

Resumen Las técnicas de control de daños aplicadas al manejo de lesiones torácicas han evolucionado en los últimos 15 años. A pesar de que el número de publicaciones es limitado, la información es suficiente para desvirtuar algunos temores y establecer los principios de manejo. La severidad del compromiso anatómico justifica el procedimiento de control de daños solamente en algunos casos. En la mayoría, la magnitud del deterioro fisiológico y la presencia de otras fuentes de sangrado dentro del tórax o en otros compartimientos corporales constituyen la indicación del procedimiento abreviado. La clasificación de la lesión pulmonar como periférica, transfixiante y central o múltiple, proporciona una pauta para el control transitorio del sangrado y para el manejo definitivo de la lesión: neumorrafía, resección en cuña, tractotomía o resecciones anatómicas, respectivamente. La identificación de ciertos patrones como la necesidad de toracotomía de reanimación o de oclusión aórtica, la existencia de un hemotórax masivo, de una lesión pulmonar central, una lesión traqueobronquial o una lesión vascular mayor, así como el reconocimiento de hipotermia, acidosis o coagulopatía, constituyen la indicación de una toracotomía de control de daños. En estos casos, el cirujano concluye de manera abreviada los procedimientos con empaquetamiento de las superficies sangrantes, el manejo primario con empaquetamiento de algunas lesiones pulmonares periféricas o transfixiante seleccionadas y el aplazamiento de la resección pulmonar, pinzando el hilio de la manera más selectiva posible. La abreviación del cierre de la toracotomía se logra con la sutura de la piel sobre el empaquetamiento de la herida, o mediante la instalación de un sistema de presión negativa. El manejo del paciente en cuidados intensivos permitirá identificar aquellos que requieren reintervención urgente y corregir la alteración fisiológica de los restantes para su reoperación programada y manejo definitivo.

Damage control in penetrating cardiac trauma / El control de daños en el trauma cardíaco penetrante

Abstract Definitive management of hemodynamically stable patients with penetrating cardiac injuries remains controversial between those who propose aggressive invasive care versus those who opt for a less invasive or non-operative approach. This controversy even extends to cases of hemodynamically unstable patients in which damage control surgery is thought to be useful and effective. The aim of this article is to delineate our experience in the surgical management of penetrating cardiac injuries via the creation of a clear and practical algorithm that includes basic principles of damage control surgery. We recommend that all patients with precordial penetrating injuries undergo trans-thoracic ultrasound screening as an integral component of their initial evaluation. In those patients who arrive hemodynamically stable but have a positive ultrasound, a pericardial window with lavage and drainage should follow. We want to emphasize the importance of the pericardial lavage and drainage in the surgical management algorithm of these patients. Before this concept, all positive pericardial windows ended up in an open chest exploration. With the coming of the pericardial lavage and drainage procedure, the reported literature and our experience have shown that 25% of positive pericardial windows do not benefit and/or require further invasive procedures. However, in hemodynamically unstable patients, damage control surgery may still be required to control ongoing bleeding. For this purpose, we propose a surgical management algorithm that includes all of these essential clinical aspects in the care of these patients.

Resumen El manejo definitivo de los pacientes hemodinámicamente estables con heridas cardíacas penetrantes continúa siendo controversial con abordajes invasivos versus manejos conservadores. Estas posiciones contrarias se extienden hasta aquellos casos de pacientes hemodinámicamente inestables donde se ha descrito y considerado la cirugía de control de daños como un procedimiento útil y efectivo. El objetivo de este artículo es presentar la experiencia en el manejo quirúrgico de heridas cardíacas penetrantes con la creación de un algoritmo práctico que incluye los principios básicos del control de daños. Se recomienda que a todos los pacientes con heridas precordiales penetrantes se les debe realizar un ultrasonido torácico como componente integral de la evaluación inicial. Aquellos que presenten un ultrasonido torácico positivo y se encuentren hemodinámicamente estables se les debe realizar una ventana pericárdica con posterior lavado. Se ha demostrado que el 25% de las ventanas pericárdicas positivas no se benefician ni requieren de posteriores abordajes quirúrgicos invasivos. Antes de este concepto, todos los pacientes con ventana pericárdica positiva terminaban en una exploración abierta del tórax y del pericárdico. Los pacientes hemodinámicamente inestables requieren de una cirugía de control de daños para un adecuado y oportuno control del sangrado. Con este propósito, se propone un algoritmo de manejo quirúrgico que incluye todos estos aspectos esenciales en el abordaje de este grupo de pacientes.

Predictors of length of stay in intensive care unit after coronary artery bypass grafting: development a risk scoring system

Abstract Introduction: To determine predictors of length of stay (LOS) in the intensive care unit (ICU) after coronary artery bypass grafting (CABG) and to develop a risk scoring system were the objectives of this study. Methods: In this retrospective study, 1202 patients' medical records after CABG were evaluated by a research-made checklist. Tarone-Ware test was used to determine the predictors of patients' LOS in the ICU. Cox regression model was used to determine the risk factors and risk ratios associated with ICU LOS. Results: The mean ICU LOS after CABG was 55.27±17.33 hours. Cox regression model showed that having more than two chest tubes (95% confidence interval [CI] 1.005-1.287, Relative Risk [RR]=1.138), occurrence of atelectasis (95% CI 1.000-3.007, RR=1.734), and occurrence of atrial fibrillation after CABG (95% CI 1.428-2.424, RR=1.861) were risk factors associated with longer ICU LOS. The discrimination power of this set of predictors was demonstrated with an area under the receiver operating characteristic curve and it was 0.69. A simple risk scoring system was developed based on three identified predictors that can raise ICU LOS. Conclusion: The simple risk scoring system developed based on three identified predictors can help to plan more accurately a patient's LOS in hospital for CABG and can be useful in managing human and financial resources.

Radiosensitivity enhancement effect of FePd@CNTs nanocomposites on MCF-7 cells / 中华放射肿瘤学杂志

Objective:To evaluate the radiosensitivity enhancement effect of FePd@CNTs nanocomposites on human breast cancer MCF-7 cells.Methods:FePd@CNTs nanocomposites were synthesized by chemical reduction method. Transmission electron microscope and energy dispersive spectrometer were utilized to characterize the surface morphology and chemical composition of FePd@CNTs nanocomposites. The compatibility of FePd@CNTs nanocomposites with human normal breast epithelial MCF-10A cells was determined by CCK-8 assay. The radiosensitivity enhancement effect of FePd@CNTs nanocomposites on MCF-7 cells was assessed by CCK-8 assay, flow cytometry and clony formation assay.Results:FePd nanospheres were successfully modified on the surface of CNTs by chemical reduction method. FePd@CNTs nanocomposites showed a low toxicity to MCF-10A cells (IC 50=738.3 μg/m), and effectively enhanced the effect of X-ray radiation on MCF-7 cells (sensibilization ratio=1.22). Conclusion:FePd@CNTs nanocomposites exhibit a promising potential for treating breast cancer and enhancing radiosensitivity effect.

A novel biomimetic micro/nano hierarchical interface of titanium enhances adhesion, proliferation and osteogenic differentiation of bone marrow mesenchymal cells / 口腔疾病防治

Objective @#To design a novel biomimetic micro/nano hierarchical interface on endosseous titanium implants and investigate its effect on the biological activity of bone marrow mesenchymal cells.@*Methods@#Electrochemical anodization and spark plasma sintering were used to modify smooth titanium (untreated Ti group) with a microporous trabecular bone-like architecture (micro-Ti group) and TiO2 nanotube architecture (nano-TiO2 group). Additionally, electrochemical anodization was employed to prepare TiO2 nanotubes on microporous trabecular bone-like architectures, which formed a novel biomimetic hierarchical interface (micro/nano-TiO2 group). Four groups of titanium samples were characterized by field emission scanning electron microscopy (SEM), atomic force microscopy (AFM) and contact angle (CA). Bone marrow mesenchymal cells (BMMCs) were seeded on four groups of titanium samples. Scanning electron microscopy (SEM) was employed to observe cell morphology. Cell proliferation was determined by MTT assay. The expression of focal adhesion proteins (F-actin; vinculin; osteocalcin, OCN; osteopontin, OPN) were observed under a confocal laser scanning microscope (CLSM). The mRNA expression levels of osteogenic factors (runt-related transcription factor 2, RUNX2; osteocalcin, OCN; osteopontin, OPN; collagen I, COL I) were assessed by qRT-PCR.@*Results@# The micro/nano- TiO2 group featured a hydrophilic surface (CA=9° ± 2.1°). The results of the MTT assay indicated that the relative cell proliferation rates for the nano- TiO2 and micro/nano-TiO2 samples were significantly increased compared with those for the untreated-Ti and micro-Ti samples (P＜0.001) after 5-9 days. The ALP results indicated that the micro/nano-TiO2 sample gained the highest value at 14 days. After 72 h of incubation, the expression of osteocalcin (OCN) and osteopontin (OPN) on micro/nano-TiO2 was the strongest. After 24 h incubation, the expression of F-actin on micro/nano-TiO2 was the strongest. In comparison with untreated-Ti and micro-Ti samples,the mRNA expression levels of all the osteogenic factors (runt-related transcription factor 2, RUNX2; osteocalcin, OCN; osteopontin, OPN; Collagen I, COL I) were markedly increased on the nano-TiO2 and micro/nano-TiO2 samples, the mRNA expression levels of collagen I (COL I) were significantly different between the nano-TiO2 and micro/nano-TiO2 samples versus the untreated-Ti and micro-Ti samples (P＜0.001). @* Conclusion@#The novel biomimetic micro/nano hierarchical interface has a positive effect on cell attachment, viability and osteogenic differentiation of bone marrow mesenchymal cells.

NAT results of HBV and HCV under different vacuum collection tubes, storage temperature and storage time / 中国输血杂志

【Objective】 To verify the results of HBV DNA and HCV RNA screening under different brands of vacuum collection tubes for blood samples, storage temperature and storage time. 【Methods】 Experiment 1 was conducted as follows: blood samples were collected simultaneously from 52 voluntary blood donors using two brands(divided into group A and group B) of vacuum collection tubes for blood samples. The plasma separation of group A and group B were compared, and the effects of storage time on the NAT yield of HBV DNA and HCV RNA were statistically analyzed. Experiment 2 was conducted as follows: the effects of different storage temperature, time and tubes on the NAT yield of HBV DNA and HCV RNA samples with low viral load in group A and B were verified and compared in the simulated phlebotomy condition. 【Results】 In Experiment 1: After centrifugation, blood plasma layer and cells layer were separated completely in group A(100%, 52/52), but one sample was not well separated in group B(1/52, 1.92%). After 4 to 10 h after collection, blood samples of two groups were centrifuged and screened for HBV DNA, HCV RNA within 24 h. No positive samples were yielded and the Ct values of internal control(IC-DNA and IC-RNA) were uniform. In Experiment 2: Whole blood samples, stored for either 4 h or 6~10 h at 4 ℃ or 25℃ before centrifugation, showed no difference on the NAT-yield of HBV DNA nor HCV RNA samples with low viral load(P>0.05). Ct values of HBV DNA and HCV RNA of group A was similar to those of group B as centrifuged samples were stored for 24 h or 72~104 h at 4℃(P>0.05), but all increased as the storage time prolonged. Ct values of HBV DNA in group A increased from 33.45±0.29(24 h) to 33.82±0.08(72~104 h) and HCV RNA from 35.21±0.20 to 36.12±0.43; HBV DNA from 33.46±0.25 to 34.30±0.60 and HCV RNA from 35.47±0.24 to 36.49±0.51 in group B. 【Conclusion】 Under certain laboratory condition, different storage time, storage temperature and tubes shed few effect on the NAT-yield of HBV DNA and HCV RNA samples with low virus loads. However, it is suggested that the blood sample be detected within 72 h after centrifugation at 4 ℃ storage.