Russell K. Woo

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UNLABELLED Pressure in colonic tumours may increase during constipation, obstruction or peri-operatively. Pressure enhances colonocyte adhesion by a c-Src- and actin-cytoskeleton-dependent PKC-independent pathway. We hypothesized that pressure activates mitogenic signals. METHODS Malignant colonocytes on a collagen I matrix were subjected to 15 mmHg(More)
BACKGROUND Surgical robotics has been promoted as an enabling technology. This study tests the hypothesis that use of the robotic surgical system can significantly improve technical ability by comparing the performance of both experts and novices on a complex laparoscopic task and a robotically assisted task. METHODS Laparoscopic experts (LE) with(More)
An efficient laparoendoscopic technique for bilateral intravesical ureteral reimplantation would offer the certainty of cure provided by open surgery with the reduced morbidity of laparoscopy. We have assessed the clinical utility of robotically assisted intravesical bilateral ureteral reimplantation in children. Ports are placed in the dome of the bladder,(More)
PURPOSE Minimal access portoenterostomy (Kasai procedure) for biliary atresia represents a technically challenging operation. The standard laparoscopic approach yields results comparable to the open technique. After an initial experience with standard laparoscopy, we assessed the potentially superior optics and dexterity of a surgical robotic system for(More)
Computer-enhanced robotic surgical systems have been increasingly used to facilitate complex minimal access surgical procedures. In adult patients, such systems have been used to perform a wide variety of operations including coronary artery bypass grafting, mitral valve repair, Roux-en-Y gastric bypass, colon resection, nephrectomy, and radical(More)
Although the laparoscopic approach to the treatment of complex biliary disease is possible, it is technically challenging. In an attempt to overcome these difficulties, the da Vinci Surgical System (Intuitive Surgical, Sunnyvale, California) was used to facilitate the minimally invasive treatment of a type I choledochal cyst in a 5-year-old, 22 kg, girl.(More)
PURPOSE Congenital lung malformations (CLM) predispose patients to recurrent respiratory tract infections and pose a rare risk of malignant transformation. Although pulmonary lobectomy is the most common treatment of a CLM, some advocate segmental resection as a lung preservation strategy. Our study evaluated lung-preserving thoracoscopic segmentectomy as(More)
Laparoscopy for the resection of liver masses in children has remained undeveloped despite the wide acceptance of laparoscopy in the field of pediatric surgery. The authors report a case of nonanatomical laparoscopic hepatic resection of a large mesenchymal hamartoma in a 2-year-old boy. The procedure was performed using an innovative approach with a(More)
OBJECTIVE Robotic systems allow surgeons to perform minimally invasive cardiac surgery in adults. Experience in the pediatric population, however, is limited. Perventricular closure of muscular ventricular septal defects has been reported in humans but requires a median sternotomy. The objective of this study was to assess the feasibility of robotically(More)