Lewis Jeremy Johnson

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OBJECTIVE To evaluate the efficacy of augmenting ventral onlay buccal urethroplasty using a using a double-sided graft technique by adding a second, full-thickness skin graft (FTSG) dorsally in long strictures ≥4 cm, we hypothesized that a double-sided graft technique would improve surgical outcomes over buccal mucosal graft (BMG) ventral onlay(More)
OBJECTIVE To evaluate the role of stone size in predicting urinary calculus composition using Hounsfield units on noncontrasted computed tomography (CT) scan. METHODS A retrospective review was performed for all patients who underwent ureteroscopy or percutaneous nephrolithotomy during a 1-year period, had a stone analysis performed, and had CT imaging(More)
INTRODUCTION Clinical studies have shown beneficial role of oral alpha-blockers for ureteral stent-related morbidity. However, the in vivo effects of oral alpha-blockers on a stented ureter are unclear. We evaluated the effects of alpha-blockade on ureteral dynamics in a stented porcine ureter. METHODS Twenty-seven female pigs were used in this study.(More)
A case is reported of urinary tract tuberculosis in a 7-year-old boy with a history of late presentation posterior urethral valves. Persistent hydroureteronephrosis after valve ablation at the age of 5 years and a draining urinary fistula from the site where a suprapubic catheter had been inserted prior to valve surgery alerted to the possibility of urinary(More)
OBJECTIVES Treatment of a renal mass in patients with hematologic malignancy or on immunosuppression can be complex and is not well defined. Surgical excision or thermal ablation of renal mass is generally recommended in view of concern for tumor progression in immunosuppressed patients. We report our management decision experience in patients and(More)
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