Publications by authors named "Alexander M Helfand"

Objective: To examine whether long-term renal function and overall survival outcomes vary according to management approach for ureteral anastomotic stricture (UAS) after cystectomy and urinary diversion.

Methods: We conducted a retrospective cohort study of patients with benign UAS following cystectomy and urinary diversion using our institutional database. We compared time to stricture, renal function, rates of renal loss, and overall survival between patients undergoing ureteral reimplantation vs.

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Objectives: To determine the relationship between long-term prostate cancer survivors' symptom burden and information needs.

Patients And Methods: We used population-based data from the Michigan Prostate Cancer Survivor Study (2499 men). We examined unadjusted differences in long-term information needs according to symptom burden and performed multivariable logistic regression to examine symptom burden and information needs adjusting for patient characteristics.

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A 3-year-old Arab boy with a history of hypoplastic left heart syndrome was referred to the pediatric dermatology clinic at Sheba Medical Center for evaluation of hypomelanosis, manifested by fair skin pigmentation and silvery-grey hair, eyebrows, and eyelashes. The child had one older brother with similar hypopigmentation and another older brother who had died of congenital heart disease. The child had no history of neurologic deficits or immunodeficiency and no additional findings on clinical evaluation.

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Segmental neurofibromatosis (SNF) is a rare type of neurofibromatosis (NF-1) resulting from post-zygotic somatic mutations in the neurofibromin gene that leads to mosaicism. Reported manifestations of SNF include neurofibromas, freckling, or café-au-lait spots limited to a single body region or limb. We present a 5-month-old male referred to our clinic for evaluation of congenital excessive skin folds on the back.

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Purpose: Hospital readmissions after radical cystectomy vary with respect to intensity in terms of impact on patients and health care systems. Therefore, we conducted a population based study to examine factors associated with increasing readmission intensity after radical cystectomy for bladder cancer.

Materials And Methods: Using SEER (Surveillance, Epidemiology, and End Results)-Medicare data we identified 1,782 patients who underwent radical cystectomy from 2003 to 2009.

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Background: Sudden cardiovascular death is increased in chronic kidney disease (CKD). Experimental CKD models suggest that angiogenesis and nitric oxide (NO) inhibitors induce myocardial fibrosis and microvascular dropout thereby facilitating arrhythmogenesis. We undertook this study to characterize associations of CKD with human myocardial pathology, NO-related circulating angiogenesis inhibitors, and endothelial cell behavior.

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Background: Soluble endoglin, a TGF-β receptor, plays a key role in cardiovascular physiology. Whether circulating concentrations of soluble endoglin are elevated in CKD or underlie the high risk of cardiovascular death associated with chronic kidney disease (CKD) is unknown.

Methods: Individuals with and without CKD were recruited at a single center.

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