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עמוד בית
Thu, 12.12.24

CASE COMMUNICATIONS

IMAJ | volume 26

Journal 8, September 2024
pages: 517-519

Preeclampsia and Severe Metabolic Alkalosis as Co-morbid Factors in Reversible Cerebral Vasoconstriction Syndrome: A Case Report

1 Department of Anesthesiology and Critical Care, Soroka University Medical Center, Faculty of Health Sciences, Ben Gurion University of the Negev, Beer Sheva, Israel 2 Medical School for International Health, Ben Gurion University of the Negev, Beer Sheva, Israel 3 Department of Orthopedic Surgery, Soroka University Medical Center, Faculty of Health Sciences, Ben Gurion University of the Negev, Beer Sheva, Israel 4 Department of Internal Medicine, Texas Tech University Health Sciences Center at the Permian Basin, Odessa, Texas, United States

Summary

Reversible cerebral vasoconstriction syndrome (RCVS) comprises a group of conditions characterized by reversible vasoconstrictions of cerebral arteries. Clinical manifestations include sudden-onset severe headaches with or without additional neurologic signs and symptoms [1].

The incidence of RCVS is 2.7 cases per million adults. It predominantly affects women, and about 9% of all RCVS cases occur during the postpartum period [2,3]. Other possible precipitating factors, such as subarachnoid hemorrhage, ischemic stroke, intracranial hemorrhage, and exposure to vasoactive drugs, have also been reported in association with RCVS [2]. The exact pathophysiology of RCVS is not well understood, although hormonal influences have been suggested as possible contributing factors.

Alkalosis-induced cerebral vasoconstriction is described but not well understood. Hyperventilation is commonly used in neurologic patients to decrease intracranial pressure and cerebral blood flow. Hyperventilation causes cerebral vasoconstriction directly by hypocapnia and may indirectly affect through alkalosis.

We present a case of RCVS in a postpartum patient admitted to the intensive care unit (ICU) with severe metabolic alkalosis necessitating hemodialysis.

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