Background and Purpose: Several different methods of teaching laparoscopic skills have been advocated, with virtual reality surgical simulation (VRSS) being the most popular. Its effectiveness in improving surgical performance is not a consensus yet, however. The purpose of this study was to determine whether practicing surgical skills in a virtual reality simulator results in improved surgical performance. Materials and Methods: Fifteen medical students recruited for the study were divided into three groups. Group I (control) did not receive any VRSS training. For 10 weeks, group II trained basic laparoscopic skills (camera handling, cutting skill, peg transfer skill, and clipping skill) in a VRSS laparoscopic skills simulator. Group III practiced the same skills and, in addition, performed a simulated cholecystectomy. All students then performed a cholecystectomy in a swine model. Their performance was reviewed by two experienced surgeons. The following parameters were evaluated: Gallbladder pedicle dissection time, clipping time, time for cutting the pedicle, gallbladder removal time, total procedure time, and blood loss. Results: With practice, there was improvement in most of the evaluated parameters by each of the individuals. There were no statistical differences in any of evaluated parameters between those who did and did not undergo VRSS training, however. Conclusion: VRSS training is assumed to be an effective tool for learning and practicing laparoscopic skills. In this study, we could not demonstrate that VRSS training resulted in improved surgical performance. It may be useful, however, in familiarizing surgeons with laparoscopic surgery. More effective methods of teaching laparoscopic skills should be evaluated to help in improving surgical performance.

Conclusions Voiding cystourethrography performed with adequate preparation and support can be tolerated without sedation. Children in the process of toilet training and females tolerate the procedure least.

Fundamento. A escolha da especialidade médica é complexa e multifatorial. A importância dos diferentes fatores varia mundialmente e está associada a diferentes valores e sistemas de educação. O objetivo do estudo é identificar os fatores que determinam essa escolha no Brasil. Métodos. Um questionário foi enviado, via internet (eletronic mail), para graduandos dos seis anos do curso de medicina, solicitando informações demográficas e a avaliação de fatores que influenciam na escolha da especialidade médica. Resultados. A idade média foi de 22 anos. Quanto à influência de familiares, 42,5% dos alunos têm pelo menos um médico como parente próximo, sendo as especialidades mais comuns desse parente: Pediatria, Ginecologia e Obstetrícia e Oftalmologia. A quantidade de respondentes que declararam certeza da carreira a ser seguida ao entrar na faculdade foi 19%, enquanto essa certeza foi de 22,2% na ocasião da pesquisa. Afinidade pela especialidade e estilo de vida foram fatores avaliados como importantes ou muito importantes por mais de 95% dos respondentes. Urgência em ganhar dinheiro rápido, tempo curto de residência, alto rendimento inicial e influência familiar foram os fatores avaliados como menos importantes pelos respondentes na escolha de sua especialidade. Quase metade dos respondentes (49,7%) descartaram uma especialidade que cogitaram fortemente, as principais razões para isso foram ter descoberto não ter afinidade pela especialidade pela qualidade de vida. Conclusões. Afinidade e estilo de vida são os fatores determinantes da escolha e da rejeição de especialidade médica em nosso meio.

To evaluate the demographics, genotype, and clinical presentation of pediatric patients presenting with distal intestinal obstruction syndrome (DIOS), and factors associated with DIOS recurrence. Case series of ten patients (median age 13.2 years), followed-up in a reference center, retrospectively assessed. Data analyzed included age, gender, cystic fibrosis genotype, meconium ileus at birth, hydration status, pulmonary exacerbation, Pseudomonas aeruginosa colonization, pancreatic insufficiency (PI), body mass index (BMI) at the episodes, clinical manifestations of DIOS, imaging studies performed, acute management of DIOS, maintenance therapy, and recurrence on follow-up. All patients had two positive sweat chloride tests, and nine of ten also had genotype study. The most common genotype identified was homozygosis for the delta F508 mutation. In seven cases, a previous history of meconium ileus was reported. All patients had pancreatic insufficiency. Diagnosis of DIOS was based on clinical and imaging findings. Of the total number of episodes, 85% were successfully managed with oral osmotic laxatives and/or rectal therapy (glycerin enema or saline irrigation). Recurrence was observed in five of ten patients. In this first report of pediatric DIOS in South America, the presence of two risk factors for DIOS occurrence was universal: pancreatic insufficiency and severe genotype. Medical history of meconium ileus at birth was present in most patients, as well as in the subgroup with DIOS recurrence. The diagnosis relied mainly on the clinical presentation and on abdominal imaging. The practices in the management of episodes varied, likely reflecting changes in the management of this syndrome throughout time.

Background Chronic abdominal pain (CAP) carries a significant burden of disease. The last edition of the Rome Criteria (Rome IV) allows the diagnosis of functional gastrointestinal disorders (FGIDs) according to symptoms-based criteria; however, patients continue to experience a delay in their diagnosis and to be submitted to different interventions before the establishment of a positive diagnosis. Objective We aimed to characterize etiology, clinical features, and interventions in a pediatric cohort of patients with CAP secondary to FGIDs, who were referred to our tertiary care university-affiliated hospital, in Brazil. Methods A retrospective descriptive study of children and adolescents (aged 20 years and younger) referred to our institution, from January/2013 to December/2018, for CAP, and who fulfilled criteria for FGIDs classified according to Rome IV criteria. Results Three hundred twenty-eight patients with CAP were screened, of which 67.9% (223 patients) fulfilled the criteria for FGIDs and were included in the study. Sixty percent were female, with a mean age of 8.3 years. At the time of referral, the mean duration of symptoms was 2.8 years. Length/height for age and weight for age mean z-scores were -0.08±1.87 and -0.38±1.62, respectively. Functional abdominal pain not otherwise specified was overall the most common diagnosis (70.4%). Before establishing the diagnosis of FGIDs, multiple pharmacological interventions were described, while after, the mainstay of therapy was education/reassurance and dietary interventions. Thirty-two percent of patients did not further require specialized follow-up. Conclusion Even at the tertiary care level, FGIDs were still the most common etiology of chronic abdominal pain, particularly functional abdominal pain not otherwise specified. Despite the relatively long duration of symptoms at referral, cessation of specialized care follow-up was possible in approximately a third of the cases.