valsalva manoeuvre

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valsalva manoeuvre

The effort to breathe out forcibly while the mouth and nose are firmly closed or the vocal cords pressed together. The valsalva manoeuvre is employed while straining at stool and in other circumstances. It causes a rise in blood pressure followed by a sharp drop and then a second sharp rise in blood pressure. This may be dangerous in people with heart disease and should be avoided. (Antonio Maria Valsalva, 1666–1723, Italian anatomist).
References in periodicals archive ?
It can be aggravated by valsalva maneuvers such as coughing, sneezing, and mountain climbing, airplane trips, and tube diving (1).
It has been postulated that patients with excessive hyperemesis may experience this phenomenon in the pre natal period, however most cases occur in the second stage of labour, with excessive straining and valsalva maneuvers specially in primigravidas with a prolonged labour, which clinically do not become symptomatic till the post partum phase.
These six periods are labeled in the figures as (A) resting baseline, (B) deep breathing, (C) baseline, (D) Valsalva maneuvers, (E) baseline, and (F) stand (postural change).
Supine imaging using Valsalva maneuvers as well as upright scanning often help to identify intermittent or sliding types of hernias (Figure 9).
Apical lung herniation can be spontaneous and has also been reported in wind instrument players, patients with chronic lung disease, and weight lifters (e.g., with a history of prolonged/repeated Valsalva maneuvers).
Ultrasound research has found that among young, nulligravid and continent women there is a wide range of "normal" values for various pelvic floor structures at rest and when performing Valsalva maneuvers. (See Table 5.) Ultrasound studies also show that urethral diverticula and funneling or widening of the proximal urethra during a Valsalva maneuver are some of the anatomical changes associated with pelvic organ prolapse and associated stress incontinence.
They may also experience intense pain when they sneeze or cough, or with Valsalva maneuvers. The headaches may also be accompanied by vomiting and diminished hearing.
They may also experience very intense pain whenever they sneeze or cough, or with Valsalva maneuvers. The headaches may also be accompanied by vomiting and diminished hearing.
The Crede or Valsalva maneuvers are contraindicated in which of the following conditions?
On postoperative day 5, the patient who had undergone the middle ear implant reported crepitance over the mastoid and implant device site after repeated Valsalva maneuvers. Computed tomography showed air surrounding the internal processor.
"I do think that there is some connection to meditative breathing and doing Valsalva maneuvers, and this may be a way to stimulate vagal tone," he said when asked about the VNS therapy.
Using contrast media-enhanced fluorometry or ultrasound, the clinician performs video urodynamics studies to correlate the size, shape and position of lower urinary tract structures with physiologic responses to bladder filling, Valsalva maneuvers and voiding.