Vladimír Weiss

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OBJECTIVE The Leksell gamma knife (LGK) is one of the treatment options for pituitary adenomas. We report on our long-term experience treating acromegaly using LGK. DESIGN Since 1993 we have followed 96 acromegaly patients through periods of from 12 to 120 months. The mean follow-up period was 53.7 +/- 26.8 months. Seventy-two patients were treated with(More)
The prevalence of sleep apnea syndrome (SAS) in acromegaly is high. Consequences of SAS are serious and are associated with increased morbidity and mortality. The aim of this study was to assess the relative frequency and predictive factors for SAS in a group of patients with acromegaly (n=55). The presence of SAS was evaluated using the Polymesam device.(More)
OBJECTIVE AND PATIENTS Patients with acromegaly (12 women, 26 men) and a control group (36 women, 50 men) were chosen for cephalometry to assess the size, shape and positional characteristics of the craniofacial bones and the upper airways. RESULTS When compared with the controls, patients of both sexes with acromegaly were found to have significant(More)
OBJECTIVE Pharmacological treatment with dopaminergic agonists (DA) is the treatment of choice for prolactinomas. Surgical and radiation treatment is also indicated in certain situations. We describe our 12-year experience in treating prolactinomas with the Leksell gamma knife (LGK). DESIGN We followed 35 prolactinoma patients (25.7% microprolactinomas,(More)
OBJECTIVE Multiple pituitary hormone deficiency (MPHD) may result from defects of transcription factors that govern early pituitary development. We aimed to establish the prevalence of HESX1, PROP1, and POU1F1 gene defects in a population-based cohort of patients with MPHD and to analyse the phenotype of affected individuals. DESIGN AND METHODS Genomic(More)
Human growth hormone (hGH) administered alone revealed itself as a useful drug to prevent ventricular aneurysm formation in experimental myocardial infarctions in rats and is also able to diminish and change the usually expected pattern of wall necrosis. A protective action on the collagen framework of myocytes has been confirmed as one of the main causes(More)
OBJECTIVE To explain the effect of craniofacial relations on the development of the sleep apnoea syndrome (SAS) in acromegaly, and to elucidate how the activity of acromegaly affects the severity of SAS. DESIGN Prospective observational study. METHODS Cephalometry and sleep ventilation measurements were performed in 26 acromegalic men and in 96 men with(More)
BACKGROUND Cushing's syndrome (CS) is associated with central adiposity, insulin resistance and impaired glucose homeostasis. Adipose tissue is thought to regulates glucose homeostasis via circulating adipokines, such as resistin, leptin and adiponectin, although their role in the insulin resistance associated with CS has not been established. DESIGN We(More)
BACKGROUND Insulin resistance, impaired glucose tolerance and type 2 diabetes are common in acromegalic subjects. The mechanism underlying this insulin resistance is unclear. DESIGN We investigated the levels of the adipocytokines, resistin, adiponectin and leptin in a group of 18 acromegalic subjects and 18 control subjects matched for age, gender and(More)