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Urology ; 111: 110-115, 2018 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-29054720


OBJECTIVE: To determine, via a randomized comparison study, whether robotic simulator-acquired skills transfer to performance of a urethrovesical anastomosis (UVA) on a 3-dimensional-printed bladder model using the da Vinci Robot. MATERIALS AND METHODS: Medical students, surgical residents, and fellows were recruited and divided into 2 groups: Group 1 (G1) (junior trainees) and Group 2 (G2) (senior trainees). Participants were randomized to identical simulator training curricula on the dV-Trainer (dV-T) or da Vinci Surgical Skills Simulator (dVSSS). Participants then completed a UVA task on a 3-dimensional-printed bladder model using the da Vinci robot. Three blinded expert robotic surgeons rated videotaped performances of the UVA task using validated assessment tools, namely, the Global Evaluative Assessment of Robotic Skills (GEARS; overall procedure) and Robotic Anastomosis Competence Evaluation (RACE; specific to UVA). RESULTS: Thirty-nine participants (G1 = 23 and G2 = 16) completed the study. Participants in G2 had significantly more simulation and surgical experience compared with G1 (P <.05). UVA scores of the dVSSS group were higher compared with dV-T (GEARS: P = .09; RACE: P = .01). In the G1 cohort, dVSSS scores were significantly higher than dV-T (GEARS: P = .01; RACE: P <.01). In the G2 cohort, scores were statistically similar (GEARS: P = .32; RACE: P = .91). CONCLUSION: Compared with the dV-T, the dVSSS training led to superior GEARS and RACE scores for performance of the UVA task in junior trainees, but not in senior trainees. The dVSSS can be used to improve surgical skills acquisition in less experienced trainees in a safe and effective manner.

Urology ; 98: 144-148, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-27421781


OBJECTIVE: To assess the need for postnatal evaluation and the long-term consequences in patients with prenatal diagnosis of unilateral renal agenesis (URA). MATERIALS AND METHODS: A retrospective review of the records of all patients with prenatal diagnosis of URA between 2004 and 2013 was done. We included all patients who underwent postnatal evaluation with renal bladder ultrasound (RBUS), dimercaptosuccinic acid scan, and a voiding cystourethrogram. Long-term follow-up included physical examination and assessment of contralateral renal growth. RESULTS: A total of 46 children (24 boys and 22 girls) with URA were identified. Ultrasounds showed associated hydronephrosis in 9 patients (19%). Dimercaptosuccinic acid scans confirmed the diagnosis of URA in all patients and showed renal scars in 2 solitary kidneys (4%). Vesicoureteral reflux was diagnosed in 4 patients (12%); all were of low grade and managed conservatively. After a mean follow up of 4 years, RBUS showed compensatory hypertrophy in 31 patients (67%), 3 patients (6%) developed chronic kidney disease, and 2 patients (4%) developed hypertension. CONCLUSION: Prenatally detected cases of URA should be promptly evaluated. RBUS is found to be sufficient for diagnosis. However, additional imaging may be indicated for confirming the diagnosis and detection of other associated urinary anomalies. Serial assessment of the contralateral solitary kidney growth and serum creatinine measurement will be helpful to assess kidney function on the long term.

Rim/diagnóstico por imagem , Cuidado Pós-Natal , Diagnóstico Pré-Natal/métodos , Rim Único/diagnóstico , Feminino , Seguimentos , Humanos , Recém-Nascido , Rim/anormalidades , Masculino , Gravidez , Estudos Retrospectivos , Fatores de Tempo
Cardiol Young ; 25(1): 87-94, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-24128994


BACKGROUND: Coarctation of the aorta is a very common congenital heart malformation. It is frequently associated with other abnormalities. Echocardiography is the diagnostic modality for congenital heart disease. The carotid-subclavian artery index and the isthmus/descending aorta index were proposed for establishing the diagnosis of coarctation of the aorta. OBJECTIVES: The objectives were to evaluate such indexes and to look for other echocardiographic predictors of coarctation of the aorta. METHOD: Echocardiography was reviewed for infants with coarctation of the aorta, as well as a control group, using the Echo PAC Dimension. Standard measurements were obtained from different sites of the aortic arch. RESULTS: A total of 31 infants 3 months or less with coarctation of the aorta and 50 infants with no coarctation of the aorta were reviewed. Abnormal aortic valve was present in 65% of those with coarctation of the aorta. The diameters of the proximal and the distal transverse aortic arch were smaller in the coarctation of the aorta group. The distance between the aortic arch branches was longer in the coarctation of the aorta group. Apart from the ratio between distance 2 and the ascending aorta, other ratios/indexes were smaller in the coarctation of the aorta group than in the control group. CONCLUSION: The presence of abnormal aortic valve, a carotid subclavian index <1.1, I/AAo ratio <0.53, and DTA/AAo ratio <0.6 suggest the presence of coarctation of the aorta. Neonates with large patent ductus arteriosus and any of these findings need close observation until the patent ductus arteriosus closes. If the arch is difficult to assess by two-dimensional echocardiography, the patient may need further imaging to rule out coarctation of the aorta.

Aorta Torácica/diagnóstico por imagem , Coartação Aórtica/diagnóstico por imagem , Ecocardiografia/métodos , Aorta Torácica/anormalidades , Diagnóstico Diferencial , Feminino , Seguimentos , Humanos , Lactente , Recém-Nascido , Masculino , Estudos Retrospectivos
Ann Pediatr Cardiol ; 5(2): 165-8, 2012 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-23129907


BACKGROUND: Outreach echocardiographic services led by cardiac sonographers may help district level hospitals in the management of patients suspected to have cardiac anomalies. However, the safety and utility of such an approach is not tested. METHODS: We retrospectively reviewed our experience of patients seen in the outreach visits by the echocardiographers alone and subsequently reviewed in the pediatric cardiology clinic. Comparison between the diagnosis made by the echocardiographer and the consultant pediatric cardiologist were done. We defined safety as no change in patient management plan between the outreach evaluation and the pediatric cardiology clinic evaluation, and we defined usefulness as being beneficial, serviceable and of practical use. RESULTS: Two senior echocardiographic technicians did 41 clinic visits and over a period of 17 months, 623 patients were seen. Patients less than 3 months of age constitute 63% of the total patients seen. Normal echocardiographic examinations were found in 342 (55%) of patients. These patients were not seen in our cardiology clinic. Abnormal echocardiographic examinations were found in 281 (45%) of patients. Among the 281 patients with abnormal echos in the outreach visits, 251 patients (89.3%) were seen in the pediatric cardiology clinic. Comparing the results of the outreach clinic evaluation to that of the pediatric cardiology clinic, 73 patients (29%) diagnosed to have a minor CHD turned to have normal echocardiographic examinations. In all patients seen in both the outreach clinics and the pediatric tertiary cardiac clinics there was no change in patient's management plan. CONCLUSIONS: Outreach clinic conducted by pediatric echo sonographers could be useful and safe. It may help in reducing unnecessary visits to pediatric cardiology clinics, provide parental reassurance, and help in narrowing the differential diagnosis in critically ill patient unable to be transferred to tertiary cardiac centers provided it is done by experienced echosonographers.