Rolando Valenzuela

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OBJECTIVES Endovascular stent graft repair of abdominal aortic aneurysms (AAAs) prevents rupture by excluding the aneurysm sac from systemic arterial pressure. Current surveillance protocols after endovascular aneurysm repair (EVAR) follow secondary markers of sac pressurization, namely, endoleak and sac enlargement. We report the first clinical experience(More)
Combined hamartomas of the retina and retinal pigment epithelium are rare fundus lesions. By combining cases seen by members of The Macula Society, clinical data was collected on 60 patients with combined hamartomas. We reviewed the clinical presentations, ophthalmoscopic, and fluorescein angiographic features and differential diagnosis of this tumor. Of 41(More)
OBJECTIVE To define the type of orgasmic dysfunction in men after radical prostatectomy (RP), as absence of orgasm and orgasmic pain are recognized complaints, and changes in orgasm may lead to significant sexual dissatisfaction. PATIENTS AND METHODS Using an unvalidated questionnaire, demographic, erectile function and orgasmic function questions were(More)
PURPOSE Despite the advent of nerve sparing radical prostatectomy some men experience erectile dysfunction. Many of these men have vasculogenic erectile impairment in the form of arterial insufficiency or venous leakage. Recent data imply that early postoperative injection therapy may decrease the rate of erectile dysfunction. We defined hemodynamic(More)
OBJECTIVES To evaluate the impact of normalization of testosterone levels in men with documented hypogonadism and erectile dysfunction on erectile function and sexual satisfaction. Although the data support the role of testosterone in the preservation of libido and nocturnal erectile function, the evidence supporting the use of testosterone supplementation(More)
OBJECTIVE To assess the efficacy of sildenafil in increasing penile glans tumescence and improving patient satisfaction in men with a penile prosthesis, as this remains a major treatment for erectile dysfunction but a common complaint is the lack of glans engorgement. PATIENTS AND METHODS To determine whether sildenafil combined with a penile prosthesis(More)
BACKGROUND Endovascular stent-graft (ESG) repair of abdominal aortic aneurysm (AAA) has emerged as an alternative to open surgery. The role of ESG in patients with challenging medical and anatomic problems remains an area of general debate. This study reviews an experience with stent grafts to treat patients with AAA and atheromatous embolization syndrome(More)
INTRODUCTION . Failure to recover erectile function after radical prostatectomy (RP) may result from venous leak as a sequela of neuropraxia-induced erectile tissue damage. Venous leak portends a poor prognosis for erections recovery as well as phosphodiesterase type 5 inhibitor (PDE5i) response. AIMS To define the impact of RP nerve-sparing status on(More)
INTRODUCTION Cancer of the oesophagus is a major problem in Yemen, where most of the patients present with advanced disease. Curative oesophageal resection for carcinoma may be carried out by either the transhiatal or transthoracic technique. The aims of this study were to compare the morbidity, mortality, short term outcome and long term survival of the(More)