Results 261 to 270 of about 184,374 (299)

Nitroglycerin‐induced coronary vasoconstriction

Catheterization and Cardiovascular Diagnosis, 1984
AbstractNitroglycerin is routinely used during coronary angiography for its vasodilating effects. An unusual case is described in which nitroglycerin induced severe coronary artery spasm. Interpretation of coronary angiograms after nitroglycerin should be made with caution.
J J, Dalal, J L, McCans, J O, Parker
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Vasoconstriction and long-term headache in reversible cerebral vasoconstriction syndrome

Journal of Neurology, 2022
Angiographic vasoconstriction in reversible cerebral vasoconstriction syndrome (RCVS) is often undetectable at symptom onset and the diagnosis relies on clinical presentation. Although thunderclap headache is a hallmark feature of RCVS, the incidence and predictors of long-term headaches (LTH) are incompletely understood.
Neha Kumar, Sandeep Kumar, Eva Rocha, Vasileios-Arsenios Lioutas   +3 more
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Hypoxic pulmonary vasoconstriction

Essays in Biochemistry, 2007
HPV (hypoxic pulmonary vasoconstriction) is the critical and distinguishing characteristic of the arteries that feed the lung. In marked contrast, systemic arteries dilate in response to hypoxia to meet the metabolic demands of the tissues they supply.
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Reversible cerebral vasoconstriction syndrome

Internal Medicine Journal, 2015
AbstractReversible cerebral vasoconstriction syndrome (RCVS) is a clinical‐radiological syndrome characterised by severe thunderclap headaches with or without other neurological symptoms and multifocal constriction of cerebral arteries that usually resolves spontaneously within 3 months.
Z, Calic, C, Cappelen-Smith, A S, Zagami
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Cold vasoconstriction and vasodilatation

The Irish Journal of Medical Science, 1951
1. When the finger is immersed in water between 0° and 6°C. the initial vasoconstriction is usually, and the subsequent vasoconstrictions are occasionally, sudden in onset and complete in degree. 2. The initial vasodilatation is usually rapid in onset. 3.
A D M, GREENFIELD, J T, SHEPHERD, R F, WHELAN   +2 more
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Reversible cerebral vasoconstriction syndrome

Neuropsychological Rehabilitation, 2016
Reversible cerebral vasoconstriction syndrome (RCVS) is a relatively rare, non-progressive angiopathy frequently heralded by severe thunderclap headache. It is characterised by vasoconstriction of cerebral arteries which usually resolves within three months of onset.
Michael, Perdices, Geoffrey, Herkes
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Reversible Cerebral Vasoconstriction Syndrome

JAMA Neurology, 2014
Sneddon's syndrome (SS) refers to an infrequent disorder combining skin and ischemic cerebral lesions in patients without a recognizable connective tissue or inflammatory or chronic infectious disease. As a rule, the transient ischemic attacks and strokes are multiple and recurrent in the same or different vascular territories.
Anne, Ducros, Rula A, Hajj-Ali, Aneesh Bhim, Singhal, Shuu-Jiun, Wang   +3 more
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Cerebral vasoconstriction in toxemia

Neurology, 1987
Three patients with toxemia developed acute neurologic deterioration postpartum. In all, cerebral angiography revealed widespread arterial vasoconstriction. Cerebral vasoconstriction may be an important cause of neurologic complications in toxemia.
A D, Will, K L, Lewis, D B, Hinshaw, K, Jordan, L M, Cousins, A N, Hasso, J R, Thompson   +6 more
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Reversible Cerebral Vasoconstriction Syndromes

2016
Reversible cerebral vasoconstriction syndrome (RCVS) is a term used to describe a group of conditions characterized by reversible segmental narrowing and dilatation of multiple intracranial arteries. Most patients present with an explosive-onset, severe (thunderclap) headache. Thunderclap headaches frequently recur over days to weeks.
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Cryoprotective properties of vasoconstriction

Cryobiology, 1974
Abstract In standardized freezing experiments made on depilated rat skin, it was found that vasconstriction gives some cryoprotection, but, only if tissue temperatures do not drop below −30 °C. It is suggested that vasoconstriction, which is a well-known sequel to more moderate drops in tissue temperature, is in fact a physiological temperature ...
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