Large numbers of migraine patients, especially those with cardiovascular disease or hypertension for whom existing treatment options such as triptans are contraindicated, may benefit from safe and effective oral CGRP-receptor antagonists since this class of drugs is not associated with vasoconstriction
It is concluded that paradoxical undressing might be explained by changes in peripheral vasoconstriction
(narrowing of blood vessels supplying the extremities) in the deeply hypothermic person," the article said.
The distinctive hallmark feature of HRS is the intense renal vasoconstriction
caused by interactions between systemic and portal haemodynamic.
During OLV, alveolar oxygen tension in the nonventilated collapsed lung declines to the mixed venous level,[sup] which leads to hypoxemia, acute hypoxic pulmonary vasoconstriction
(HPV), and ischemia-reperfusion injury.
Research has proven that smoking 1) causes a decrease in capillary blood flow to the skin caused by vasoconstriction
, 2) releases an abundance of free radicals into the skin tissues, 3) increases keratinocyte dysplasia, 4) decreases keratinocyte migration, and 5) decreases the production of erythrocytes (red blood cells).
5 causes systemic inflammation, vasoconstriction
and raised blood pressure.
Background: The mechanism of hypoxic pulmonary vasoconstriction
(HPV) is still debatable.
This edition has expanded coverage of neurosonology; more on anatomic and pathologic principles, including orbital and vascular-related parenchymal sonography and fusion imaging with ultrasound and MRI; new techniques, including ultrasound fusion imaging, ultrafast ultrasound, and contrast application; 15 new cases on conditions like subarachnoid hemorrhage, dural fistula, sickle cell disease, and reversible cerebral vasoconstriction
syndrome; and new video clips on the companion website.
Lasmiditan, if approved, would be a first-in-class therapy to treat migraine through a novel mechanism of action without vasoconstriction
5-7) Thus, the coordination of a thermoregulatory response with a perfect hierarchical organization takes place from the preoptic area of the anterior hypothalamus, coordination that goes far beyond a simple spinal cord response as vasoconstriction
Vasopressin receptor activation also causes vasoconstriction
and platelet activation.
2] receptors are the predominant mechanism for vasoconstriction
in the cutaneous vasculature, in contrast to [[alpha].