The round ligament in developmental hip dysplasia: are its mechanical and histological properties preserved? / O ligamento redondo na displasia do desenvolvimento do quadril: suas propriedades mecânicas e histológicas são preservadas?

ABSTRACT Introduction During open surgical dislocated hip reduction, several anatomical structures, such as the round ligament, are approached. However, there is controversy over both the possibility of preserving the ligament and its functional importance. Materials and Methods This experimental study used skeletally immature rabbits as a model for congenital hip dislocation. Thirty-six rabbits comprised the sample that was submitted to the round ligament analysis. The sample was stratified for analysis (biomechanics, zymography, histology, and immunohistochemistry). Statistical analysis compared the unstable side to the control side of each rabbit. Results Biomechanical assays showed that the mean maximal strength of the round ligament on the unstable side was similar to that of the control side (p = 0.594), which was also the case with maximum deformation (p = 0.328). Histologically, there was a statistically significant increase in cellularity on the unstable side (p <0.001). Additionally, there was significantly greater collagen occupancy on the control side (p <0.001). Zymography revealed no significant difference in the amount of active metalloproteinase 2 (MMP-2) (p = 0.068). Conclusions Although histological analysis found evidence of significant changes in the RL in unstable hips, there were no significant differences in zymography, and no changes were observed in biomechanical tests. Evidence Level V; Experimental study.

RESUMO Introdução Durante a redução cirúrgica aberta de luxação de quadril, várias estruturas anatômicas são abordadas, entre elas, o ligamento redondo. No entanto, há controvérsias quanto à possibilidade de preservação desse ligamento, bem como sua importância funcional. Materiais e Métodos Este estudo experimental usou coelhos esqueleticamente imaturos como modelo de luxação congênita do quadril. Trinta e seis coelhos compuseram a amostra que foi submetida à análise do ligamento redondo. A amostra foi estratificada para análise (biomecânica, zimografia, histologia e imuno-histoquímica). A análise estatística comparou o lado instável com o lado controle de cada coelho. Resultados Os ensaios biomecânicos mostraram que a força máxima média do ligamento redondo no lado instável era semelhante ao lado controle (p = 0,594), o que também ocorreu com a deformação máxima (p = 0,328). Em termos histológicos, houve um aumento estatisticamente significante da celularidade no lado instável (p < 0,001). Além disso, houve maior ocupação de colágeno no lado controle (p < 0,001). A zimografia não mostrou diferença significativa da quantidade de metaloproteinase 2 ativa (MMP-2) (p = 0,068). Conclusões Embora a análise histológica tenha encontrado evidências de alterações significativas do LR nos quadris instáveis, não houve diferenças significativas na zimografia e não foram observadas alterações nos testes biomecânicos. Nível de evidência V; Estudo experimental.

Intraarticular epsilon aminocaproic acid versus tranexamic acid in total knee arthroplasty / Acido épsilon aminocaproico intra-articular versus acido tranexâmico na prótese total do joelho

ABSTRACT Objective: To examine and compare the clinical efficacy of intraarticular epsilon aminocaproic acid (EACA) and tranexamic acid (TXA) in total knee arthroplasty (TKA). Methods: This study was a prospective, single-center, double-blinded randomized controlled trial, including sixty patients with osteoarthritis of the knee divided into two groups of 30 patients. In the TXA group, 1 g of TXA (0.05 g/ml) was applied intraarticularly, and in the EACA group, 4 g of EACA (0.2 g/ml) was applied intraarticularly. Serum hemoglobin (Hgb) and hematocrit (Htb) were measured during the preoperatively and 24 and 48 hours postoperatively. The range of motion and pain were evaluated by clinical examination. To evaluate knee function before and 2 months after surgery, the Western Ontario and McMaster Universities Index (WOMAC) questionnaire was used. Results: In total, 56 (93.3%) patients were evaluated up to the second postoperative month. No significant difference between the groups (p > 0.05) was found in the decrease in Hgb or Htb at 24 or 48 hours. Regarding assessment of the pain, WOMAC score and gain in knee flexion, no significant advantages up to 60 days after surgery (p > 0.05) were found. Conclusions: The decrease in Hgb and Htb during the first 48 hours postoperatively and the risk of transfusion were similar with the intraarticular use of 1 g of TXA and 4 g of EACA in TKA. The possible benefits regarding knee pain, gain in flexion and function were also similar for the two drugs. Level of Evidence II, Randomized, Double-Blinded, Single-Centre, Prospective Clinical Trial.

RESUMO Objetivo: Avaliar e comparar a eficácia clinica do uso intra-articular do ácido épsilon aminocaproico (AEAC) versus o ácido tranexâmico (ATX) na prótese total do joelho. Métodos: Estudo clínico prospectivo, centro-único, duplo-cego e randomizado. Sessenta pacientes com osteoartrose de joelho foram incluídos. Os participantes foram divididos em dois grupos de 30 pacientes. No grupo ATX, foi aplicado 1 g de ATX (0.05 g/ml) intra-articular e, no grupo AEAC, foram aplicados 4 g de AEAC (0.2 g/ml) intra-articular. Valores séricos da hemoglobina (Hb) e hemtatócrito (Ht) foram dosados no pré-operatório e com 24 e 48 horas após a cirurgia. A amplitude de movimento e a dor também foram avaliadas no exame clínico. O índice WOMAC foi utilizado para avaliar a função do joelho antes e após dois meses da cirurgia. Resultados: Foram avaliados 56 (93.3%) pacientes até o segundo mês pós-operatório. Depois da cirurgia, não houve diferenças entre os grupos (p > 0.05) na queda do valor de Hb e Ht com 24 ou 48 horas. Com relação à avaliação da dor, WOMAC e ganho de flexão do joelho, não houve vantagem significativa para nenhum dos grupos até os 60 dias depois da cirurgia(p > 0.05). Conclusão: A queda do valor da Hb e do Ht durante as primeiras 48 horas pós-operatórias e o risco de transfusão foram similares com o uso intra-articular de 1 g de ATX e 4 g de AEAC na artroplastia total do joelho. Os possíveis benefícios com relação ao controle da dor, ganho de flexão e função foram similares entre as duas drogas. Nível de Evidência II, Ensaio-Clínico Prospectivo, Randomizado, Duplo Cego, Centro-Único.

Platelet-rich plasma (prp) and tranexamic acid (txa) applied in total knee arthroplasty / Plasma rico em plaquetas (prp) e ácido tranexâmico (atx) aplicados na artroplastia total do joelho

ABSTRACT Objective: To evaluate the efficacy of platelet-rich plasma (PRP) and tranexamic acid (TXA) applied in total knee arthroplasty. Methods: We selected and randomized 84 patients. TXA was applied in 23 patients, PRP in 20, and PRP in combination with TXA in 20. Hemoglobin was measured preoperatively and 24 and 48 hours postoperatively. The function questionnaire, pain scale and gain of knee flexion were monitored until the second postoperative year. Results: There was a difference (p <0.01) in the decrease in hemoglobin 48 hours after surgery between the TXA group and the control and PRP groups. In terms of pain, the TXA group at 24 and 48 hours after surgery and the PRP group at 48 hours after surgery showed advantages (p <0.01). Knee flexion gain in the first 24 hours postoperatively was better in the TXA group (p <0.05). Conclusion: TXA was effective in lowering the drop in hemoglobin level, reducing pain and improving movement gain 48 hours after the procedure. PRP was not effective in reducing bleeding or improving knee function after arthroplasty, but provided better control of postoperative pain. Level of Evidence I, Randomized, blinded, prospective clinical trial.

RESUMO Objetivo: Avaliar a eficácia do plasma rico em plaquetas (PRP) e do ácido tranexâmico (ATX) aplicados na artroplastia total do joelho. Métodos: Selecionamos e randomizamos 84 pacientes. ATX foi aplicado em 23 pacientes, PRP em 20, e PRP associado a ATX em 20. A hemoglobina foi medida no pré-operatório e nas 24 e 48 horas após a cirurgia. O questionário de função, a escala de dor e o ganho de flexão do joelho foram verificados até o segundo ano de pós-operatório. Resultados: Houve diferença(p < 0,01) na diminuição da hemoglobina 48 horas após a cirurgia entre o grupo ATX e os grupos controle e PRP. Na dor, o grupo ATX 24 e 48 horas após a cirurgia e o grupo PRP 48 horas após a cirurgia apresentaram vantagens (p < 0,01). O ganho de flexão do joelho nas primeiras 24 horas de pós-operatório foi melhor no grupo ATX (p < 0,05). Conclusão: O ATX foi eficaz na diminuição da queda da hemoglobina, reduzindo a dor e melhorando o ganho de movimento em 48 horas após o procedimento. O PRP não foi eficaz na redução do sangramento ou na melhora da função do joelho após a artroplastia, mas proporcionou melhor controle da dor pós-operatória. Nível de Evidência I, Randomizado, duplo cego, ensaio clínico prospectivo.

Mitomycin C in the endoscopic treatment of tracheal stenosis: a prospective cohort study / Mitomicina C no tratamento endoscópico de estenose traqueal: estudo prospectivo de coorte

ABSTRACT Objective: To evaluate the efficacy of mitomycin C (MMC) in the endoscopic treatment of tracheal stenosis. Methods: Patients with laryngotracheal, tracheal, or tracheobronchial stenosis were treated with dilation and topical MMC. The inclusion criteria were as follows: being ineligible for surgery (for medical reasons) at the time of evaluation; membranous stenosis responding well to dilation; and postoperative stenosis at the anastomosis site. Etiology of stenosis and indication for treatment with MMC, as well as site, length, and percentage of stenosis, together with presence of tracheostomy and duration of follow-up, were analyzed. The outcomes evaluated were symptom-free interval ≥ 12 months, number of dilations with topical application of MMC, and complications. Results: Twenty-two patients (15 men and 7 women) were treated between 2003 and 2010. Stenosis was due to endotracheal intubation in 15 patients and surgery in 8. Pure tracheal stenosis was encountered in 13 patients, subglottic stenosis was encountered in 4, tracheobronchial stenosis was encountered in 3, and complex stenosis was encountered in 2. The length of stenosis ranged from 0.5 cm to 2.5 cm, and the percentage of stenosis ranged from 40% to 100%. Nine patients had undergone tracheostomy and had a Montgomery T-tube in situ. Treatment was successful in 14 patients, who remained free of symptoms for at least 12 months. The number of topical applications of MMC ranged from 1 to 5, and complications included fungal infection, keloid scarring, granuloma, and mediastinal emphysema. Conclusions: MMC appears to be effective in the endoscopic treatment of tracheal stenosis.

RESUMO Objetivo: Avaliar a eficácia da mitomicina C (MMC) no tratamento endoscópico de estenose traqueal. Métodos: Pacientes com estenose laringotraqueal, traqueal ou traqueobrônquica foram tratados por meio de dilatação e MMC tópica. Foram empregados os seguintes critérios de inclusão: pacientes inaptos para cirurgia (por motivos médicos) no momento da avaliação; estenose membranosa com boa resposta a dilatação e estenose pós-operatória no local da anastomose. Foram analisadas as seguintes variáveis: etiologia da estenose; indicação de tratamento com MMC; local e extensão da estenose, bem como a porcentagem de estenose; presença de traqueostomia e tempo de seguimento. Os desfechos avaliados foram 12 meses ou mais sem sintomas, número de dilatações com aplicação de MMC tópica e complicações. Resultados: Vinte e dois pacientes (15 homens e 7 mulheres) foram tratados entre 2003 e 2010. As causas da estenose foram intubação endotraqueal em 15 pacientes e cirurgia em 8. A estenose traqueal pura foi observada em 13 pacientes, a subglótica, em 4, a traqueobrônquica, em 3 e a complexa, em 2. A extensão da estenose variou de 0,5 a 2,5 cm, e a porcentagem de estenose variou de 40 a 100%. Nove pacientes haviam sido submetidos a traqueostomia e apresentavam tubo T de Montgomery in situ. O tratamento teve êxito em 14 pacientes, que permaneceram sem sintomas durante pelo menos 12 meses. O número de aplicações de MMC tópica variou de 1 a 5, e as complicações foram infecção fúngica, queloide, granuloma e enfisema mediastinal. Conclusões: A MMC é aparentemente eficaz no tratamento endoscópico de estenose traqueal.

Treatment of post-intubation laryngeal granulomas: systematic review and proportional meta-analysis / Treatment of post-intubation laryngeal granulomas: systematic review and proportional meta-analysis

Abstract Introduction: Laryngeal granulomas post intubation are benign but recurrent lesions. There is no consensus for its treatment. Objective: To describe the effectiveness of different treatment modalities for primary or recurrent laryngeal granulomas resulting from endotracheal intubation. Methods: Systematic review and proportional meta-analysis. Eligibility criteria - experimental or observational studies with at least five subjects. Outcomes studied - granuloma resolution, recurrence, and time for resolution. Databases used - Pubmed, Embase, Lilacs, and Cochrane. The Stats Direct 3.0.121 program was used. Results: Six studies were selected, with 85 patients. The treatments registered were: antireflux therapy, speech therapy, anti-inflammatory drugs, steroids, antibiotics, zinc sulfate and surgery. 85 patients from six studies had primary treatment: surgery ± associations (41 patients), resolution chance 75% (95% CI: 0.3-100%, I 2 = 90%), absolute relapse risk 25% (95% CI: 0.2-71%); medical treatment (44 patients), resolution chance 86% (95% CI: 67-97%); and absolute relapse risk 14% (95% CI: 3-33%). There was no significant difference between groups. Three studies, encompassing 19 patients, analyzed secondary treatment (failure or recurrence after primary treatment); three subjects presented new recurrence. The time needed to resolve the lesions varied from immediate, after surgery, to 23 months, for inhaled steroid. Conclusion: There is no evidence of high quality that proves the efficacy of any treatment for laryngeal granulomas resulting from endotracheal intubation.

Resumo: Introdução: Granulomas laríngeos pós-intubação são lesões laríngeas benignas, porém recorrentes. Não há um consenso na literatura em relação ao seu tratamento. Objetivo: Descrever a eficácia de diferentes modalidades de tratamento para granulomas laríngeos primários ou recorrentes resultantes da intubação endotraqueal. Método: Estudo-revisão sistemática e metanálise proporcional. Critérios de elegibilidade: estudos experimentais ou observacionais com pelo menos cinco indivíduos. Desfechos estudados: resolução do granuloma, recorrência e tempo de resolução. Bases de dados usadas: Pubmed, Embase, Lilacs e Cochrane. Foi usado o software Stats Direct 3.0.121. Resultados: Foram selecionados seis estudos, com 85 pacientes. Os tratamentos registrados foram: terapia antirrefluxo, terapia da voz, medicamentos anti-inflamatórios, esteroides, antibióticos, sulfato de zinco e cirurgia. Receberam tratamento primário 85 pacientes de seis estudos: cirurgia ± associações (41 pacientes), chance de resolução de 75% (IC 95% 0,3% a 100%, I2 = 90%) e risco absoluto de recorrência de 25% (IC 95%: 0,2% a 71%); tratamento clínico (44 pacientes), chance de resolução de 86% (IC 95%: 67% a 97%) e risco absoluto de recorrência de 14% (IC 95%: 3% a 33%). Não houve diferença significante entre os grupos. Três estudos, que abrangeram 19 pacientes, analisaram o tratamento secundário (falha ou recorrência após o tratamento primário); três indivíduos apresentaram nova recorrência. O tempo necessário para resolver as lesões variou de imediato, logo após a cirurgia, até 23 meses, com tratamento com esteroides inalados. Conclusão: Não há evidências de alta qualidade que provem a eficácia de qualquer tratamento para granulomas laríngeos resultantes da intubação endotraqueal.

Hyperhidrosis: prevalence and impact on quality of life / Hiperidrose: prevalência e impacto na qualidade de vida

ABSTRACT Objective: To determine the prevalence of primary hyperhidrosis in the city of Botucatu, Brazil, and to evaluate how this disorder affects the quality of life in those suffering from it. Methods: A population survey was conducted in order to identify cases of hyperhidrosis among residents in the urban area of the city, selected by systematic cluster sampling. In accordance with the census maps of the city, the sample size should be at least 4,033 participants. Ten interviewers applied a questionnaire that evaluated the presence of excessive sweating and invited the subjects who reported hyperhidrosis to be evaluated by a physician in order to confirm the diagnosis. Results: A total of 4,133 residents, in 1,351 households, were surveyed. Excessive sweating was reported by 85 residents (prevalence = 2.07%), of whom 51 (60%) were female. Of those 85 respondents, 51 (60%) agreed to undergo medical evaluation to confirm the diagnosis and only 23 (45%) were diagnosed with primary hyperhidrosis (prevalence = 0.93%). Of the 23 subjects diagnosed with primary hyperhidrosis, 11 (48%) reported poor or very poor quality of life. Conclusions: Although the prevalence of self-reported excessive sweating was greater than 2%, the actual prevalence of primary hyperhidrosis in our sample was 0.93% and nearly 50% of the respondents with primary hyperhidrosis reported impaired quality of life.

RESUMO Objetivo: Estabelecer a prevalência de hiperidrose primária no município de Botucatu (SP) e avaliar como o transtorno afeta a qualidade de vida dos seus portadores. Métodos: Foi realizado um levantamento populacional para identificar os casos de hiperidrose em moradores da região urbana da cidade, selecionados por amostragem sistemática de conglomerados. O número amostral de 4.033 participantes foi calculado usando os mapas censitários do município. Dez entrevistadores aplicaram um questionário que avaliou a presença de transpiração excessiva e convidaram os sujeitos que referiram hiperidrose para uma entrevista com um médico para a confirmação do diagnóstico. Resultados: Foram pesquisados 1.351 domicílios, com 4.133 moradores. Desses, 85 queixaram-se de sudorese excessiva (prevalência = 2,07%), sendo 51 (60%) do gênero feminino. Dos 85 indivíduos, 51 (60%) concordaram receber avaliação médica para confirmar o diagnóstico, e apenas 23 (45%) apresentaram hiperidrose primária (prevalência = 0,93%). Dos 23 indivíduos diagnosticados com hiperidrose primária, 11 (48%) referiram qualidade de vida ruim ou muito ruim. Conclusões: Embora as queixas de transpiração excessiva tenham sido superiores a 2%, a prevalência real de hiperidrose primária em nossa amostra foi de 0,93% e o distúrbio afetava a qualidade de vida em quase 50% dos indivíduos.

Thoracotomy compared to laparotomy in the traumatic diaphragmatic hernia. Systematic review and proportional methanalysis

Abstract Purpose: To evaluate the most used approach to treat traumatic diaphragmatic ruptures, and in which one the requirement to assess the second cavity is more frequent. Methods: Systematic review, observational studies. Outcomes: moment of approach, most commonly via addressed and the requirement to open the other cavity. Bases searched: Lilacs, Pubmed, Embase, Clinicaltrials.gov and Web of Science. Statistical analysis: StatsDirect 3.0.121 software. Results: Sixty eight studies (2023 participants) were included. Approach in acute phase was performed four times more than in chronic phase. Approach: abdominal 65% (IC 95% 63-67%), thoracic 23% (IC 95% 21-24%), abdominal in the acute phase 75% (IC 95% 71-78%), and chronic 24% (IC 95% 19-29%), thoracic in the acute phase 12% (IC 95% 10-14%) and chronic 69% (IC 95% 63-74%). Thorax opening in the abdominal approach: 10% (95% CI 8-14%). Abdomen opening in the thoracic approach: 15% (95% CI 7-24%). Conclusions: The most common approach was the abdominal. The approach in the acute phase was more common. In the acute phase the abdominal approach is more frequent than the thoracic approach. In the chronic phase the thoracic approach is more frequent than the abdominal one. The requirement to open the second cavity was similar in both approaches.

Endobronchial solitary fibrous tumor

Solitary fibrous tumor (SFT) is a mesenchymal neoplasm that appears primarily in the pleura and rarely in intrapulmonary or endobronchial topography. The authors report the case of a 47-year-old woman who presented obstructive respiratory symptoms for 4 years. The chest computed tomography and bronchoscopy showed an obstructive polypoid lesion located between the trachea and the left main bronchus associated with distal atelectasis of the left lung. A resection of the lesion was performed and, macroscopically, the mass was oval, encapsulated, and firm, measuring 2.3 × 1.7 × 1.5 cm. Histology revealed low-grade mesenchymal spindle cell neoplasm, with alternating cellularity, myxoid areas, and mature adipose tissue outbreaks, as well as blood vessels with irregular walls. The immunohistochemical study was positive for CD34, CD99, and BCL2. The diagnosis was SFT in an unusual topography. The patient's symptoms remitted after tumor excision, and no systemic problems were evident. SFTs primarily affect adults and often follow a benign course; however, their behavior is unpredictable. The presence of necrosis and mitotic activity may portend a poor prognosis. Endobronchial SFTs are rare but should be evaluated and monitored similar to SFTs at other sites, with a long-term follow-up

Palmar hyperhidrosis: clinical, pathophysiological, diagnostic and therapeutic aspects

Abstract Palmar hyperhidrosis affects up to 3% of the population and inflict significant impact on quality of life. It is characterized by chronic excessive sweating, not related to the necessity of heat loss. It evolves from a localized hyperactivity of the sympathetic autonomic system and can be triggered by stressful events. In this study, the authors discuss clinical findings, pathophysiological, diagnostic and therapeutic issues (clinical and surgical) related to palmar hyperhidrosis.

Respiratory immunohistochemical study in rats exposed to cigarette smoke and alcohol

PURPOSE: To investigate the effects of exposure to cigarette and alcohol on immunohistochemical disorders caused by these attacks to respiratory system of rats. METHODS: Sixty male Wistar rats in four groups: control, cigarette smoke, alcohol and cigarette smoke + alcohol during 260 days. Immunohistochemistry was performed by researching survivin and protein P53 expressions and apoptotic index in parenchymal lung and trachea using TUNEL technique. RESULTS: There was body growth impairment in all experimental groups. Both smoker groups animals had higher trachea survivin expression and bronchial higher apoptotic index. The trachea apoptotic index was also higher in the cigarette smoke group as well as in the alveoli in the cigarette smoke + alcohol group. The three experimental groups showed negative immunoexpression for P53. CONCLUSIONS: this model resulted in immunohistochemical changes caused mainly by exposure to cigarette smoke. There was a synergistic action between alcohol and tobacco in the growth impairment in animals as well as in the cellular apoptotic index. The positive immunoexpression for tracheal survivin in animals from both groups exposed to tobacco smoke and associated with a negative P53 immunoexpression suggests that despite the aggression, carcinogenesis has not happened yet. In addition, the bronchial higher apoptotic index in smokers may be responsible for emphysema. .

Cardiorespiratory evaluation in pre and post operative moments of laparoscopic cholecystectomy

PURPOSE: To analyze the changes in both respiratory function and cardiopulmonary exercise tests results in patients subjected to laparoscopic cholecystectomy. METHODS: Fifty patients were evaluated (76% women) and the average age was 47.8±14.2 years. All individuals underwent the measurement of spirometry, manovacuometry, 6-minute walk test (6MWT) and stair-climbing test (SCT). All tests were performed at the first (PO1), fifth (PO5) and thirtieth (PO30) postoperative days. RESULTS: BMI average was 28.8±4.8 kg/m2. Sample comprised 68% non-smokers, 20% current smokers, and 12% former smokers. There was no incidence of postoperative complication whatsoever. There was a significant decrease in spirometric values at PO1, but values were similar to the ones of PRE at PO30. Manovacuometry showed alterations at PO1 displaying values that were similar to the ones of PRE at PO30. 6MWT was significantly shorter at until PO5, but at PO30 values were similar to ones of PRE. As for SCT, values were significantly compromised at PO5 and PO30 since they were similar to the ones of PRE. CONCLUSION: Patients submitted to laparoscopic cholecystectomy present a decrease in cardiorespiratory function on the first postoperative moments but there is a rapid return to preoperative conditions. .

C-reactive protein and vasospasm after aneurysmal subarachnoid hemorrhage1

PURPOSE: To evaluate the relationship between C reactive protein levels and clinical and radiological parameters with delayed ischemic neurological deficits and outcome after aneurysmal subarachnoid hemorrhage. METHODS: One hundred adult patients with aneurismal SAH were prospectively evaluated. Besides the baseline characteristics, daily C-reactive protein levels were prospectively measured until day 10 after subarachnoid hemorrhage. The primary end point was outcome assessed by Glasgow Outcome Scale, the secondary was the occurrence of delayed ischemic neurological deficits (DINDs). RESULTS: A progressive increase in the CRP levels from the admission to 3rd postictal day was observed, followed by a slow decrease until the 9th day. Hemodynamic changes in TCD were associated with higher serum CRP levels. Patients with lower GCS scores presented with increased CRP levels. Patients with higher Hunt and Hess grades on admission developed significantly higher CRP serum levels. Patients with higher admission Fisher grades showed increased levels of CRP. A statistically significant inverse correlation was established in our series between CRP serum levels and GOS on discharge and CRP levels. CONCLUSIONS: Higher C-reactive protein serum levels are associated with worse clinical outcome and the occurrence of delayed ischemic neurological deficits. Because C-reactive protein levels were significantly elevated in the early phase, they might be a useful parameter to monitor. .

Congenital lobar emphysema: 30-year case series in two university hospitals / Enfisema lobar congenito: serie de casos de 30 anos em dois hospitais universitarios

OBJECTIVE: To review the cases of patients with congenital lobar emphysema (CLE) submitted to surgical treatment at two university hospitals over a 30-year period. METHODS: We reviewed the medical records of children with CLE undergoing surgical treatment between 1979 and 2009 at the Botucatu School of Medicine Hospital das Clínicas or the Mogi das Cruzes University Hospital. We analyzed data regarding symptoms, physical examination, radiographic findings, diagnosis, surgical treatment, and postoperative follow-up. RESULTS: During the period studied, 20 children with CLE underwent surgery. The mean age at the time of surgery was 6.9 months (range, 9 days to 4 years). All of the cases presented with symptoms at birth or during the first months of life. In all cases, chest X-rays were useful in defining the diagnosis. In cases of moderate respiratory distress, chest CT facilitated the diagnosis. One patient with severe respiratory distress was misdiagnosed with hypertensive pneumothorax and underwent chest tube drainage. Only patients with moderate respiratory distress were submitted to bronchoscopy, which revealed no tracheobronchial abnormalities. The surgical approach was lateral muscle-sparing thoracotomy. The left upper and middle lobes were the most often affected, followed by the right upper lobe. Lobectomy was performed in 18 cases, whereas bilobectomy was performed in 2 (together with bronchogenic cyst resection in 1 of those). No postoperative complications were observed. Postoperative ...

OBJETIVO: Revisar os casos de enfisema lobar congênito (ELC) operados nos últimos 30 anos em dois hospitais universitários. MÉTODOS: Foram revistos os prontuários médicos das crianças com ELC operadas no Hospital das Clínicas da Faculdade de Medicina de Botucatu e no Hospital da Universidade de Mogi das Cruzes entre 1979 e 2009. Dados sobre sintomas, exame físico, achados radiológicos, diagnóstico, tratamento cirúrgico e seguimento pós-operatório mediato e tardio foram analisados. RESULTADOS: Durante o período estudado, 20 crianças com ELC foram submetidas a tratamento cirúrgico. A média de idade dos pacientes no momento da cirurgia foi 6,9 meses (variação, 9 dias a 4 anos). Todos os casos apresentaram sintomas ao nascimento ou nos primeiros meses de vida. Em todos os casos, a radiografia simples de tórax foi importante na definição do diagnóstico. Em casos de dificuldade respiratória moderada, a TC de tórax auxiliou no diagnóstico. Um paciente com desconforto respiratório grave foi diagnosticado erroneamente com pneumotórax hipertensivo e submetido a drenagem torácica. A broncoscopia só foi realizada nos pacientes com dificuldade respiratória moderada e não foram encontrados sinais de anomalias traqueobrônquicas. A abordagem cirúrgica foi realizada através de toracotomia lateral poupadora de músculo. O lobo superior esquerdo e o lobo médio ...

Surgical risk tests related to cardiopulmonary postoperative complications: comparison between upper abdominal and thoracic surgery

PURPOSE: To investigate if tests used in the preoperative period of upper abdominal or thoracic surgeries are able to differentiate the patients that presented cardiopulmonary postoperative complications. METHODS: Seventy eight patients, 30 submitted to upper abdominal surgery and 48 to thoracic surgery were evaluated. Spirometry, respirometry, manovacuometry, six-minute walk test and stair-climbing test were performed. Complications from immediate postoperative to discharge from hospital were registered. RESULTS: The postoperative complications rate was 17% in upper abdominal surgery and 10% in thoracic surgery. In the univariate regression, the only variable that kept the correlation with postoperative complications in the upper abdominal surgery was maximal expiratory pressure. In thoracic surgery, the maximal voluntary ventilation, six-minute walk test and time in stair-climbing test presented correlation with postoperative complications. After multiple regression only stair-climbing test continued as an important risk predictor in thoracic surgery. CONCLUSION: The respiratory pressure could differentiate patients with complications in upper abdominal surgery, whereas in thoracic surgery, only spirometric values and exercise tests could differentiate them.

Lung morphology and growth of rats exposed to tobacco smoke and alcohol / Estudo morfológico dos pulmões e crescimento de ratos expostos à fumaça do cigarro e ao álcool

PURPOSE: Investigate the morphological effects of chronic exposure to tobacco smoke inhalation and alcohol consumption on the lungs and on the growth of rats. METHODS: Sixty male Wistar rats were divided into four groups: control, tobacco, alcohol, tobacco + alcohol, for a period of study 260 days. Morphological analysis was conducted by optical and electron microscopy. Rat growth was investigated by measuring the snout-anus length, body mass index and body weight. RESULTS: The three groups exposed to the drugs presented lower growth and lower weight than the control group. The percentages of alveolitis, bronchiolitis and the mean alveolar diameter were greater, particularly in the groups exposed to tobacco smoke, but were not significantly different from the control group. Electron microscopy revealed more intense apoptotic and degenerative lesions in the smoking group, while degenerative lesions in the lamellar bodies were more intense with the association of both drugs. CONCLUSIONS: This experimental model showed morphological alterations observed by electron microscopy, principally due to tobacco smoke exposure. Alcohol and tobacco hindered the growth of rats, such that tobacco showed a greater effect on body length and alcohol on body weight.

OBJETIVO: Investigar os efeitos morfológicos da exposição crônica à inalação de fumaça do tabaco e o do consumo de álcool nos pulmões e no crescimento de ratos. MÉTODOS: Sessenta ratos Wistar machos foram distribuídos em quatro grupos: controle, tabaco, álcool e tabaco + álcool, e acompanhados por um período de 260 dias. No final do periodo foi realizada análise morfológica dos pulmões por microscopia óptica e eletrônica. O crescimento dos ratos foi investigado através da medição do comprimento focinho-ânus, peso corporal e índice de massa corporal. RESULTADOS: Os três grupos expostos às drogas apresentaram peso e comprimento significativamente menores que os do grupo controle. As percentagens de bronquiolite e alveolite, e o diâmetro alveolar médio foram maiores nos grupos expostos à fumaça do tabaco, mas sem significancia estatística quando comparadas ao grupo controle. A microscopia eletrônica revelou apoptose mais intensa e lesões degenerativas no grupo de fumantes, enquanto lesões degenerativas nos corpos lamelares foram mais intensas com a associação de ambas as drogas. CONCLUSÕES: Este modelo experimental mostrou alterações morfológicas observadas por microscopia eletrônica, principalmente devido à exposição ao tabaco. Tanto o alcool como o tabaco prejudicaram o crescimento dos animais, o tabaco mostrando um efeito maior sobre o comprimento e o álcool sobre o peso corporal.

Síndrome do desfiladeiro torácico - ressecção de costela cervical por videotoracoscopia / Thoracic outlet syndrome - cervical rib resection through videothoracoscopic surgery

A base do tratamento cirúrgico da Síndrome do Desfiladeiro Torácico (SDT) é a ressecção da primeira costela, podendo associar-se à escalenectomia ou ainda à ressecção de costela cervical. Esta última é feita tradicionalmente por meio de um acesso supraclavicular ou mesmo axilar, o qual é tecnicamente mais trabalhoso. Pode ser realizada também por meio de acesso paraescapular. Embora tecnicamente atrativa e associada à menor invasividade e maior segurança, com ótimo resultado estético, a ressecção da primeira costela torácica, por intermédio de cirurgia videoassistida transaxilar ou pela técnica videotoracoscópica, é pouco relatada na literatura, e nenhuma referência foi encontrada sobre ressecção de costela cervical mediante essa técnica. Neste artigo, apresentamos essa inovação cirúrgica realizada com sucesso para ressecção de costela cervical em duas pacientes.

The basis of Thoracic Outlet Syndrome (TOS) surgical treatment is the first rib resection and may be associated with scalenectomy or cervical rib resection. The latter is traditionally done through a supraclavicular or axillary access, which is the most technically challenging. It can also be achieved through parascapular access. Although technically attractive and associated with less invasiveness and increased security, with excellent aesthetic results, the first thoracic rib resection via video-assisted transaxillary surgery or videothoracoscopic technique is seldom reported in the literature, and no reference was found on cervical rib resection through this technique. In this article, we introduced this innovation successfully performed for surgical cervical rib resection in two patients.

Study on functional cardiorespiratory changes after laparoscopic Nissen fundoplication / Estudo das alterações funcionais cardiorrespiratórias após a fundoplicatura laparoscópica à Nissen

PURPOSE: To analyze the behavior of cardiopulmonary function in postoperative of laparoscopic Nissen fundoplication. METHODS: Thirty-two patients, 13 males (41%) and 19 females (59%), were evaluated. Their age ranged from 25 to 67 years, with a mean of 44.4 ± 10.9. Pulmonary volumes, respiratory pressures and exercise tests were performed in the preoperative period (PRE) and in the first (PO1), second (PO2), fifth (PO5) and thirtieth (PO30) postoperative periods. RESULTS: Thirty-two patients were evaluated, of whom 59% were females. Mean age was 44.4 ± 10.9 years. Lung volumes had significant decrease at PO1 and PO2 and were similar to PRE values at PO5. Respiratory pressures were altered only at PO1. The distance covered in the 6-minute walk test had significant reduction until PO2, and climbing time in the stair-climbing test significantly increased at PO2. CONCLUSION: Patients submitted to LNF surgery have decreased cardiorespiratory function in the early postoperative period; however, they soon return to preoperative conditions.

OBJETIVO: Analisar o comportamento da função cardiopulmonar no pós-operatório de fundoplicatura Nissen laparoscópica. MÉTODOS: Trinta e dois pacientes, 13 homens (41%) e 19 mulheres (59%) foram avaliados. A idade variou de 25 to 67 anos, com media de 44.4 ± 10.9. Os volumes pulmonares, as pressões respiratórias e testes de exercício foram realizados no período pré-operatório (PRE) e no primeiro (PO1), segundo (PO2), quinto (PO5) e trigésimo (PO30) períodos pós-operatórios. RESULTADOS: Trinta e dois pacientes foram avaliados, dos quais 59% eram do sexo feminino. A média de idade foi de 44,4 ± 10,9 anos. Os volumes pulmonares apresentaram diminuição significativa no PO1 e PO2 e foram semelhantes aos valores PRE no PO5. As pressões respiratórias estiveram alteradas apenas no PO1. A distância percorrida no teste da caminhada de 6 minutos apresentou redução significativa até o PO2, e o tempo de subida no teste de escada aumentou significativamente no PO2. CONCLUSÃO: Pacientes submetidos à FLN apresentaram diminuição da função cardiorrespiratória no início do período pós-operatório, no entanto, elas rapidamente regressaram às condições pré-operatórias.

Intestinal healing in rats submitted to ethanol ingestion / Cicatrização intestinal em ratos submetidos à ingestão de etanol

PURPOSE: To study the effect of alcoholism on intestinal healing and postoperative complications in rats METHODS: One hundred and sixty rats were divided into two groups: control and treated. The control group received water and the treated group 30 percent ethanol. After 180 days, colotomy with anastomosis were performed. After, the groups were divided into four subgroups: 20 rats for study at the following moments: 4th, 7th, 14th and 21st postoperative. The analyzed parameters were: weight gain, breaking strength, tissue hydroxyproline, postoperative complications and histopathological study RESULTS: Weight gain was greater in the control group (p<0.05). When all the subgroups were clustered, breaking strength was significantly greater in the control (p<0.05). Histopathology and hydroxyproline dosage did not show differences. There were five surgical site infections in the treated group while the control group showed two (p>0.05). Nine fistulas occurred in the treated group whereas the control group two (p<0.05). There were three deaths in the control group and seven in the treated group (p>0.05). CONCLUSIONS: Treated group undergo a malnutrition process that is revealed by lower weight gain. Impaired intestinal healing as indicated by smaller breaking strength. There were a larger number of postoperative complications in the treated animals.

OBJETIVO: Estudar o efeito do alcoolismo no processo de cicatrização intestinal e suas complicações pós-operatórias em ratos. MÉTODOS: Cento e sessenta ratos foram divididos em dois grupos: tratado e controle. O controle recebeu água, enquanto o tratado etanol a 30 por cento. Após 180 dias foram realizadas colotomia, seguida de anastomose. Após os animais foram divididos em quatro subgrupos de 20 ratos para estudo nos seguintes momentos: 4º, 7º, 14º e 21º pós-operatório. Os parâmetros analisados foram: ganho de peso, força de ruptura, hidroxiprolina tecidual, complicações pós-operatórias e estudo histopatológico. RESULTADOS: O ganho de peso foi superior no grupo controle (p<0,05). Após agrupamento dos momentos a força de ruptura foi superior no controle (p<0,05). Não houve diferença quanto à histopatologia e hidroxiprolina. Houve cinco infecções de incisão no grupo tratado, enquanto no controle ocorreram duas (p>0,05). Houve nove fístulas no grupo tratado, enquanto no controle duas (p<0,05). Ocorreram sete mortes no grupo tratado e apenas três no controle (p>0,05). CONCLUSÕES: No grupo tratado ocorreu um processo de subnutrição evidenciado pelo menor ganho de peso. Piora na cicatrização intestinal, indicada pela menor força de ruptura. Ocorreu um maior número de complicações pós-operatórias no grupo tratado.

Intrapleural analgesia after endoscopic thoracic sympathectomy / Analgesia intrapleural após simpatectomia videotoracoscópica

PURPOSE: To compare analgesia traditionally used for thoracic sympathectomy to intrapleural ropivacaine injection in two different doses. METHODS: Twenty-four patients were divided into three similar groups, and all of them received intravenous dipyrone. Group A received intravenous tramadol and intrapleural injection of saline solution. Group B received intrapleural injection of 0.33 percent ropivacaine, and Group C 0.5 percent ropivacaine. The following aspects were analyzed: inspiratory capacity, respiratory rate and pain. Pain was evaluated in the immediate postoperative period by means of the visual analog scale and over a one-week period. RESULTS: In Groups A and B, reduced inspiratory capacity was observed in the postoperative period. In the first postoperative 12 hours, only 12.5 percent of the patients in Groups B and C showed intense pain as compared to 25 percent in Group A. In the subsequent week, only one patient in Group A showed mild pain while the remainder reported intense pain. In Group B, half of the patients showed intense pain, and in Group C, only one presented intense pain. CONCLUSION: Intrapleural analgesia with ropivacaine resulted in less pain in the late postoperative period with better analgesic outcomes in higher doses, providing a better ventilatory pattern.

OBJETIVO: Comparar a analgesia tradicionalmente utilizada para simpatectomia videotoracoscópica à injeção intrapleural de ropivacaína em duas doses diferentes. MÉTODOS: Vinte e quatro pacientes foram distribuídos em três grupos semelhantes, e todos eles receberam dipirona endovenosa. O grupo A recebeu tramadol endovenoso e injeção intrapleural de solução salina. O grupo B recebeu injeção intrapleural de ropivacaína a 0,33 por cento, e Grupo C ropivacaína a 0,5 por cento. Os aspectos analisados foram: capacidade inspiratória, freqüência respiratória e dor. A dor foi avaliada no período pós-operatório por meio da escala visual analógica e durante o período de uma semana. RESULTADOS: Nos grupos A e B, a redução da capacidade inspiratória foi observada no período pós-operatório. Nas primeiras 12 horas de pós-operatório, apenas 12,5 por cento dos pacientes nos grupos B e C apresentaram dor intensa em comparação a 25 por cento no Grupo A. Na semana seguinte, apenas um paciente do grupo A apresentou dor leve, enquanto o restante relatou dor intensa. No Grupo B, metade dos pacientes apresentou dor intensa, e no Grupo C, apenas um apresentou intensa dor. CONCLUSÃO: A analgesia intrapleural com ropivacaína resultou em menos dor no pós-operatório tardio com os melhores resultados analgésicos nas doses mais altas, proporcionando um melhor padrão ventilatório.

Comparison between actual and predicted postoperative stair-climbing test, walk test and spirometric values in patients undergoing lung resection / Comparação dos testes de escada, caminhada e espirometria preditos com os obtidos no pós-operatório de ressecções pulmonares

PURPOSE: To assess whether the tests - Forced Expiratory Volume at one second (FEV1), 6-minute walk test (6MWT) and stair-climbing test (SCT) showed proportional changes after the resection of functioning lung. METHODS: Candidates for pulmonary resection were included. Spirometry, 6MWT and SCT were performed preoperatively (pre) and at least 3 months after surgery (pos). SCT was performed on a staircase with a total ascent height of 12.16m. The time taken to climb the total height the fastest possible was defined as stair-climbing time (SCt). Number of functioning segments lost, was used to calculated predicted postoperative (ppo) tests values. Pre, ppo and pos values for each test were compared. Data were analyzed by repeated-measure ANOVA with significance level set at 5 percent. RESULTS: A total of 40 patients were enrolled. Pulmonary resection results ranged from gain of 2 functioning segments to loss of 9. Pre, ppo and pos values were the following: preFEV1 = 2.6±0.8L, ppo FEV1 =2.3±0.8L, and pos FEV1=2.3±0.8L, (pre FEV1 > ppo FEV1 = pos FEV1); pre6MWT = 604±63m, ppo6MWT= 529±103m, pos6MWT= 599±74m (pre6MWT = pos6MWT > ppo6MWT); preSCt = 32.9±7.6s, ppoSCt = 37.8±12.1s, posSCt = 33.7±8.5s (preSCt = posSCt < ppoSCt). CONCLUSION: In our group of patients, pulmonary resection led to loss of lung function measured by spirometry, but not to exercise capacity measured by stair-climbing and walk tests.

OBJETIVO: Verificar se os testes: Volume Expiratório Forçado no 1º segundo (VEF1), Teste de Caminhada de 6 minutos (TC6) e Teste de Escada (TE) se alteram proporcionalmente ao pulmão funcionante ressecado. MÉTODOS: Foram incluídos pacientes candidatos a toracotomia para ressecção pulmonar. No pré-operatório (pré) e no mínimo três meses após a cirurgia (pós), realizaram espirometria, TC6 e TE. O TE foi realizado em escada com 12,16m de altura. O tempo para subir todos os degraus o mais rápido possível foi chamado tempo de escada (tTE). Os cálculos dos valores dos testes preditos para o pós-operatório (ppo) foram realizados conforme o número de segmentos funcionantes perdidos. Os valores pré, ppo e pós foram comparados entre si para cada teste. Estatística: foi utilizada a análise de variância para medidas repetidas (ANOVA), com significância de 5 por cento. RESULTADOS: Foram estudados 40 pacientes. A ressecção pulmonar variou desde o ganho de dois segmentos funcionantes até a perda de 9. Os valores pré, ppo e pós foram respectivamente: VEF1 -pré = 2,6±0,8L, ppo = 2,3±0,8L, pós = 2,3±0,8L (VEF1pré > VEF1ppo = VEF1pós), TC6-pré = 604±63m, ppo = 529±103m, pós = 599±74m (TC6pré = TC6pós > TC6ppo), tTE-pré = 32,9±7,6s, ppo = 37,8±12,1s, pós = 33,7±8,5s (tTEpré = tTEpós < tTEppo). CONCLUSÃO: Nas ressecções pulmonares, este grupo de pacientes perdeu função pulmonar medida através da espirometria, mas não perdeu a capacidade de exercício, medida através dos testes de escada e caminhada.