Cough syncope is a well-recognized syndrome in which loss of consciousness follows a bout of prolonged coughing. The pathophysioiogy of this syndrome has been attributed to lowered cerebral perfusion pressure consequent on an increased intrathoracic pressure, which lowvers cardiac output (by a Valsalv...
Sometimes, specific tests are needed to diagnose vasovagal syncope or tell it apart from another cause of fainting. For example, you might need to have atilt table studyto help distinguish vasovagal syncope from orthostatic hypotension.14 For the test, you are strapped to a table that tilts upw...
Other situations commonly cause the heart rate to temporarily slow and cause a faint. Straining with urination, bowel movement, orcoughingcan cause a vagal response, increase acetylcholine levels and decrease blood flow to the brain. Fainting during pregnancy Fainting is related topregnancy. Likely e...
Coughing, laughing or crying hard Pressure to the carotid sinus (this can be caused by wearing too tight collars or applying pressure to the neck) Dehydration Vomiting Diarrhea Blood loss Alcohol use Certain medications Parkinson’s disease Stroke Carotid artery stenosis Brain aneurysm...
The exact mechanism of cough syncope is not known, but the vigorous coughing probably increases CSF pressure enough to impair intracranial circulation, causing syncope due to cerebral ischemia. 展开 DOI: 10.1212/WNL.34.3.371 被引量: 24 年份: 1984 ...
prolonged coughing straining to defecate or urinate blowing a wind instrument too hard remaining in a stuffy environment with too little oxygen Sometimes fainting may be caused by a temporary drop in the blood supply to the brain caused by a transient ischemic attack (TIA). A TIA, sometimes ca...
syncope (such as posturalhypotension, vasovagal reaction, and situational syncope). The person regains consciousness by simply sitting or lying down. The person is thereafter advised to avoid trigger situations, to not strain while eliminating, to sit when coughing, to lie down for blood drawing,...
Situational syncope:Thetemporary loss of consciousnessin a particular kind of situation. The situations thattriggerthis reaction are diverse, and include having blood drawn, straining while urinating or defecating, and coughing. It can also be due to the emotionalstress, fear, or pain. When exper...
Situational -preceded by a specific action such as sneezing, laughing, coughing, urinating, defecating, eating, or exercise Carotid sinus stimulation Orthostatic Hypotension Autonomic dysfunction- usually a symptom of another degenerative disease such as Parkinson disease, multiple system atrophy, Lewy bod...
If coughing or dyspnea develops, provide supplemental oxygen and ventilation. Bronchodilators should be used to counteract bronchospasm (Wang et al., 2004). Sedation and pain control may be needed so that the animal can be handled safely. Corticosteroid use is controversial. Animal models have ...