Publications by authors named "Philip J Dorsey"

Counterfeit phosphodiesterase-5 inhibitors (PDE-5i) are an increasing problem. Already in widespread use, the market for PDE-5i is steadily growing as the population ages. Counterfeiters are taking advantage of this growing market by developing illicit and counterfeit PDE-5i products.

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Reduction of warm ischemia time during partial nephrectomy (PN) is critical to minimizing ischemic damage and improving postoperative kidney function, while maintaining tumor resection efficacy. Recently, methods for localizing the effects of warm ischemia to the region of the tumor via selective clamping of higher-order segmental artery branches have been shown to have superior outcomes compared with clamping the main renal artery. However, artery identification can prolong operative time and increase the blood loss and reduce the positive effects of selective ischemia.

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Purpose: Renal hypothermia is commonly utilized during nephron sparing surgery to minimize ischemic tissue damage. We propose a method to induce renal hypothermia using continuous retrograde irrigation of iced saline via dual-lumen ureteral catheter. We will report results in an ex vivo porcine model followed by clinical outcomes in a series of patients with solitary kidney undergoing robotic-assisted laparoscopic partial nephrectomy (RALPN).

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Next-generation DNA and RNA sequencing requires intact nucleic acids from high-quality human tissue samples to better elucidate the molecular basis of cancer. We have developed a prostate biobanking protocol to acquire suitable samples for sequencing without compromising the accuracy of clinical diagnosis. To assess the clinical implications of implementing this protocol, we evaluated 105 consecutive radical prostatectomy specimens from November 2008 to February 2009.

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Objectives: Serum lactate values in the emergency department (ED) have been associated with mortality in diverse populations of critically ill patients. This study investigates whether serum lactate values measured in the ED are associated with mortality in older patients admitted to the hospital, both with and without infections.

Methods: This is a retrospective cohort study performed at two urban teaching hospitals.

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Patients with large median prostate lobes undergoing robot-assisted radical prostatectomy are at potential risk of ureteric orifice injury, during posterior bladder neck transection and vesicourethral anastomosis reconstruction. We describe our technique of in situ robot-assisted ureteral stenting with double-pigtail stents for accurate observation and preservation of the ureteral orifices. We have performed this maneuver in over 30 patients in our cohort of over 1500 patients undergoing robot-assisted radical prostatectomy to date--none of these patients developed urinary leak or bladder neck contracture, and had uneventful cystoscopic removal of stents at 6 weeks after surgery.

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Objective: A rise in temperature of more than 55 degrees C in tissues, even for short a duration has been implicated in irreversible tissue damage. This study was aimed at recording real time temperature changes at the neurovascular bundle (NVB) during the use of cautery in robotic radical prostatectomy.

Methods: The temperature was monitored with a needle electrode in 15 cases of athermal nerve sparing and 10 cases of non-nerve sparing robotic radical prostatectomy (RRP).

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