Spontaneous hyphaema following Valsalva-like manoeuvre
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 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 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 کاملSpontaneous hyphaema with abnormal iris vessels.
A woman aged 42 was examined in the Casualty Department of the Royal Eye Hospital, London, at 8.30 p.m. on June 30, 1956. She complained of slight blurring of right vision associated with a little pain which had begun 7 hours before. This had never occurred previously. There was no history of physical strain or excitement, nor was there any relevant family or personal history concerning her ocu...
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ژورنال
عنوان ژورنال: Eye
سال: 2008
ISSN: 0950-222X,1476-5454
DOI: 10.1038/eye.2008.150