The aim of the present study was to evaluate the impact of hypothyroidism on the autonomic regulation of the cardiovascular system by analyzing sympathetic and parasympathetic influences on the heart and the effect of thyroxine replacement. Thirty newly diagnosed female hypothyroid patients with mean age 32.73 +/- 9.98 years were recruited from the Thyroid Clinic, GTB Hospital, Delhi. Various A...

BACKGROUND AND AIM OF THE STUDY Rupture of the sinus of Valsalva is rare, and there is a higher incidence of such rupture in Oriental countries than elsewhere. The objective of this study is to present the pathologic features and the clinical outcome after surgery in such patients. METHODS Between 1980 and 2001, a total of 17 patients (15 males and 2 females) with ruptured aneurysm of sinus o...

[Purpose] The purpose of this study was to compare the effect of childbirth delivery method on vaginal pressure and abdominal thickness during the Valsalva maneuver (VAL). [Subjects] Thirty healthy female volunteers (26-39 years of age) were selected for this research. Their delivery histories were: nulliparous 10, vaginal delivery 10, and Cesarean delivery 10. None of the participants had a hi...

Sinus of Valsalva aneurysm, dilatation of one or more of the aortic sinuses, is a rare but important aortic root defect, which can be a cause of some serious cardiac sequels. The purpose of this article is to review the etiopathogenesis, relevant anatomy, clinical manifestations, potential complications, multimodality imaging features, and management of this rare but important entity of sinus o...

Stress, an inevitable and constant feature throughout the lifetime, induces autonomic dysfunctions, for which meditation is considered to be an antidote. So the case control study was planned including 50 Raja-yoga meditators practicing meditation for 5 years and 50 age matched non-meditators. Autonomic function tests were performed and results were compared using the Student-t test. Mean value...

BACKGROUND Valsalva maneuver reduces pain by activating sinoaortic baroreceptor reflex arc. We planned this study to evaluate the role of valsalva in attenuating spinal needle-puncture pain. METHODS Ninety American Society of Anesthesiologists (ASA) grade I and II enrolled patients undergoing elective surgery were randomized into 3 groups of 30 each. Group I (Control): didn't blow; group II (...

One of the pathophysiological features in Buerger's disease, i.e. thromboangitis obliterans (TAO), is vasospastic phenomena. So autonomic reactivity was evaluated in 12 patients of Buerger's disease (1-6 years duration) and compared to age and sex matched controls (nonsmokers). Basal heart rate was significantly (P < 0.001) higher without any variation in blood pressure in TAO group compared to...