Sijo J. Parekattil

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OBJECTIVE To describe a microsurgical technique for denervation of the spermatic cord and use of multiphoton microscopy (MPM) laser to identify and ablate residual nerves after microsurgical denervation. To evaluate structural and functional changes in the rat testis and vas deferens after denervation. MATERIALS AND METHODS Nine Sprague-Dawley rats were(More)
PURPOSE We developed a neural network to identify patients with bladder cancer more effectively than hematuria and cytology. The algorithm is based on combined urine levels of nuclear matrix protein-22, monocyte chemoattractant protein-1 and urinary intercellular adhesion molecule-1. MATERIALS AND METHODS A randomized double-blinded study of voided urine(More)
PURPOSE We externally validated a previously designed neural network model to predict outcome and duration of passage for ureteral/renal calculi. The model was also evaluated using a 6 mm largest stone dimension cutoff in predicting stone outcome. MATERIALS AND METHODS The model was previously designed on 301 patients at Albany Medical Center (free(More)
Idiopathic male infertility can be diagnosis in approximately one-third of infertile males. The empirical medical treatment with or without assisted reproductive techniques appears common in male infertility practice. This type of management can be classified as hormonal treatment including gonadotropins, antiestrogens, and aromatase inhibitors and support(More)
Microsurgical vasectomy reversal is a technically demanding procedure. Previous studies have shown the possible benefit of robotic assistance during such procedures. Our goal was to compare robotic assisted vasovasostomy and vasoepididymostomy to standard microsurgical vasovasostomy (MVV) and vasoepididymostomy (MVE). The use of robotic assistance for(More)
This article presents a review of the history and evolution of robotic instrumentation and its applications in urology. A timeline for the evolution of robotic instrumentation is presented to better facilitate an understanding of our current-day applications. Some new directions including robotic microsurgical applications (robotic assisted denervation of(More)
Robotic-assisted microsurgery can be utilized for either intracorporal or extracorporeal surgical procedures. Three-dimensional high-definition magnification, a stable ergonomic platform, elimination of physiologic tremor, and motion scaling make the robotic platform attractive for microsurgeons for complex procedures. Additionally, robotic assistance(More)
PURPOSE We devised a model to predict, preoperatively, the need for a vasoepididymostomy (VE) when performing a vasectomy reversal. Urologists could use it to identify those patients who need a referral to an experienced VE surgeon. MATERIALS AND METHODS We performed a retrospective review of 483 patients who underwent vasectomy reversal by a single(More)
PURPOSE We identified structural abnormalities in the spermatic cord nerves that may explain how microsurgical denervation of the spermatic cord provides pain relief in patients with chronic orchialgia. MATERIALS AND METHODS We retrospectively reviewed a prospective database to compare spermatic cord biopsy specimens from 56 men treated with a total of 57(More)
PURPOSE Microsurgical denervation of the spermatic cord has been done to treat chronic orchialgia. However, identifying the site of spermatic cord nerves is not feasible with an operating microscope or robotic stereoscope. We used multiphoton microscopy, a novel laser imaging technology, to identify and selectively ablate spermatic cord nerves in the rat.(More)