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BACKGROUND Current therapies for pulmonary arterial hypertension have been adopted on the basis of short-term trials with exercise capacity as the primary end point. We assessed the efficacy of macitentan, a new dual endothelin-receptor antagonist, using a primary end point of morbidity and mortality in a long-term trial. METHODS We randomly assigned(More)
BACKGROUND Safe, effective therapy is needed for pediatric pulmonary arterial hypertension. METHODS AND RESULTS Children (n=235; weight ≥8 kg) were randomized to low-, medium-, or high-dose sildenafil or placebo orally 3 times daily for 16 weeks in the Sildenafil in Treatment-Naive Children, Aged 1-17 Years, With Pulmonary Arterial Hypertension (STARTS-1)(More)
BACKGROUND An increased level of plasma homocysteine is being recognized as a new risk factor for coronary artery disease. Since there are not enough data about its importance in Indians with coronary artery disease, we aimed to assess the significance of plasma homocysteine as a coronary risk factor in South Indian patients. METHODS AND RESULTS In a(More)
OBJECTIVES In a randomized, double-blind, crossover design, we compared the efficacy of sildenafil with placebo in patients with primary pulmonary hypertension (PPH). The primary end point was the change in exercise time on treadmill using the Naughton protocol. Secondary end points were change in cardiac index and pulmonary artery systolic pressure as(More)
OBJECTIVES This report characterizes a syndrome of granulomatous infiltration presenting as sustained monomorphic ventricular tachycardia (SMVT) with mediastinal adenopathy in patients with preserved ventricular function. BACKGROUND Unlike truly idiopathic ventricular tachycardia, SMVT due to granulomatous infiltration responds poorly to radiofrequency(More)
PURPOSE OF REVIEW Pulmonary arterial hypertension (PAH) has been a disease with limited treatment options and poor prognosis. This article reviews the recent advances that took place in the medical management of PAH. RECENT FINDINGS Sildenafil is a type 5 cGMP-specific phosphodiesterase inhibitor originally developed to treat erectile dysfunction.(More)
In the present study a series of 4-isopropylthiazole-2-carbohydrazide analogs, derived clubbed oxadiazole-thiazole and triazole-thiazole derivatives have been synthesized and characterized by IR, (1)H NMR, (13)C NMR, elemental and mass spectral analyses. The synthesized compounds were evaluated for their preliminary in vitro antibacterial, antifungal and(More)
Nimbolide (1), a limonoid isolated from Azadirachta indica, is the chief cytotoxic principle in Neem leaves extract. Using nimbolide as a lead compound for anti-cancer analogue design, a series of nimbolide derivatives have been synthesized and evaluated for in vitro cytotoxic activity against a panel of human cancer cell lines. Out of 10 compounds screened(More)
BACKGROUND Primary pulmonary hypertension is a disorder with limited treatment options and poor outcome. Sildenafil, a pulmonary vasodilator, is likely to be beneficial in primary pulmonary hypertension. We studied the clinical efficacy of sildenafil in patients with primary pulmonary hypertension. METHODS AND RESULTS A registry of patients with primary(More)
INTRODUCTION Epidemiology of sudden cardiac death (SCD) in India is understudied. METHODS We assessed proportion of SCD among total mortality in a population in Southern India using a staged, questionnaire-based kindred-wide approach. Detailed questionnaires (DQs) were completed by medical trainees from 8 medical colleges. Preliminary questionnaires(More)