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The Valsalva maneuver may help check for a dural tear following certain spinal operations, such as a microdiscectomy. An increase in intra-spinal pressure will cause cerebral spinal fluid (CSF) to leak out of the dura, causing a headache. [citation needed] The Valsalva maneuver has been associated with transient global amnesia. [17] [18] [19 ...
CSF pressure has been shown to be influenced by abrupt changes in intrathoracic pressure during coughing (which is induced by contraction of the diaphragm and abdominal wall muscles, the latter of which also increases intra-abdominal pressure), the valsalva maneuver, and communication with the vasculature (venous and arterial systems).
The "Toynbee maneuver": pinching the nose and swallowing. Swallowing pulls open the eustachian tubes while the movement of the tongue, with the nose closed, compresses air which passes through the tubes to the middle ear. [2] The "Valsalva maneuver": pinching the nose and closing the mouth and trying to breathe out through the nose.
A vagal maneuver is an action used to stimulate the parasympathetic nervous system by activating the vagus nerve. The vagus nerve is the longest nerve of the autonomic nervous system and helps regulate many critical aspects of human physiology, including heart rate, blood pressure, sweating, and digestion through the release of acetylcholine .
Cold water ingress through a perforated eardrum can cause caloric vertigo, usually a short term effect. [2] Ingress of contaminated water through a perforated eardrum can cause infections of the middle ear. [2] Over-vigorous attempts to equalise using the Valsalva maneuver can lead to inner ear barotrauma [2]
Short-term self-resolution of BPPV is unlikely because the effective cure maneuvers induce strong vertigo which the patient will naturally resist and not accidentally perform. The first medical description of the condition occurred in 1921 by Róbert Bárány. [11] Approximately 2.4% of people are affected at some point in time. [1]