The Valsalva manoeuvre and Antonio Valsalva (1666–1723)
نویسندگان
چکیده
منابع مشابه
The Valsalva manoeuvre: physiology and clinical examples.
The Valsalva manoeuvre (VM), a forced expiratory effort against a closed airway, has a wide range of applications in several medical disciplines, including diagnosing heart problems or autonomic nervous system deficiencies. The changes of the intrathoracic and intra-abdominal pressure associated with the manoeuvre result in a complex cardiovascular response with a concomitant action of several ...
متن کاملThe Valsalva Manoeuvre a Critical Review
The Valsalva manoeuvre is commonly used in diving to equalise middle ear pressures during descent. A forceful expiration with the nostrils and mouth held shut results in an increased nasopharyngeal pressure and opening of the Eustachian tubes. The correctly performed manoeuvre is easily taught, effective and usually without complications. When performed incorrectly, prolonged periods of raised ...
متن کاملInfluence of posture on the Valsalva manoeuvre.
The objective of the present study was to evaluate the influence of posture on the responses of blood pressure (BP) and heart rate (HR) to the Valsalva manoeuvre (VM). Neurohumoral activation, as well as changes in intravascular and intracardiac volumes and pressures, are well known effects of orthostatic stress. These changes are likely to have significant effects on cardiovascular reflexes, s...
متن کاملLeft ventricular dysfunction--bedside Valsalva manoeuvre.
Thirty-seven patients were evaluated before cardiac catheterisation by bedside physical examination, including Valsalva manoeuvre, to assess the value of the sphygmomanometrically determined arterial pressure responses during the Valsalva manoeuvre and to compare its sensitivity, specificity, and predictive accuracy in the detection of left ventricular dysfunction with that of the commonly used...
متن کاملInteraction between cardiovascular responses to sustained handgrip and Valsalva manoeuvre.
Interactions between the cardiovascular responses to the Valsalva manoeuvre and sustained handgrip were analysed in 5 men with untreated mild hypertension and 4 young normal subjects. Though set at a higher level, there was a normal blood pressure response to the Valsalva manoeuvre during concurrent sustained handgrip in 4 of the 5 hypertensive subjects. At the end of the handgrip period in whi...
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ژورنال
عنوان ژورنال: Journal of the Royal Society of Medicine
سال: 2006
ISSN: 0141-0768,1758-1095
DOI: 10.1177/014107680609900915