Andrew Ballaro

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PURPOSE Laparoscopic simple prostatectomy has recently been developed to remove large prostatic adenomas causing bladder outflow obstruction. To our knowledge the advantages of the laparoscopic vs the standard open approach to this procedure remain undefined. We compared laparoscopic and open simple prostatectomy. MATERIALS AND METHODS Perioperative data(More)
PURPOSE We developed a computer generated model of the prostate gland and an interactive simulator for use in training urologists in transurethral resection of the prostate. MATERIALS AND METHODS Software was developed on a standard personal computer which allowed images of the lumen of the prostatic urethra and resectoscope loop to be generated and(More)
OBJECTIVE To discover whether there is a seasonal variation in the incidence of rupture of abdominal aortic aneurysms. DESIGN Deaths per month due to rupture of abdominal aortic aneurysm were analysed retrospectively using a cosinor regression model. SETTING England and Wales. SUBJECTS 19,599 patients who died from rupture of abdominal aortic aneurysm(More)
OBJECTIVE To test the hypothesis that a modified technique for renal parenchymal closure during laparoscopic partial nephrectomy (LPN) enables a significant reduction in warm ischaemia (WIT). METHODS Perioperative factors including WIT were prospectively recorded during 40 consecutive LPNs performed by a single experienced laparoscopist. In the first 20(More)
OBJECTIVE To determine the accuracy of routine data coding in a large multispeciality urological unit. Materials and methods From the clinical records, the diagnosis and procedure codes were ascribed to 106 finished consultant episodes (FCEs) in urology, by two urological trainees. The codes were compared with those ascribed by professional hospital coders(More)
OBJECTIVE Control of the renal pedicle is the most challenging step during laparoscopic nephrectomy. The standard method is to clip the artery and control the vein with an endovascular gastrointestinal anastomosis stapler. However, this device is expensive and has been reported to malfunction, leading to major complications even death. We describe an easy,(More)
PURPOSE Extracellular recordings from the whole intact mammalian bladder of the electrical events leading to contraction of the organ have been elusive for almost 50 years despite the widespread potential applications of such a technique. The principal problem is the need to isolate the small real signals reflecting membrane depolarization from the large(More)
PURPOSE We recorded nerve mediated extracellular electrical activity from guinea pig detrusor smooth muscle strips using suction electrodes and determined the electrophysiological origins of this signal and its relationship to contractile activity. MATERIALS AND METHODS Mucosa-free detrusor strips were prepared from male guinea pigs sacrificed under Home(More)