Cerebrovascular reactivity in migraineurs Vasorreatividade cerebral em migranosos
نویسندگان
چکیده
Cerebrovascular reactivity (CR) assessed by transcranial Doppler (TCD) has been evaluated among migraineurs with conflicting results. We assessed the CR using the breath holding index (BHI) among 228 migraineurs during ictal or interictal phase and 56 controls. Migraineurs exhibited increased BHI values in the interictal phase and reduced BHI in the ictal phase when compared to controls.
منابع مشابه
Transcranial doppler sonography diagnostic value for the cerebral flow velocity changes in the interictal phase of classic migraine
Background: An imbalance of the cerebrovascular response during functional activation of the brain has been postulated as a factor in the pathophysiology of migraine. The purpose of this study was to determine the transcranial doppler sonography (TDS) diagnostic value for the cerebral flow velocity changes in the interictal phase of classic migraine. Methods: This study was carried out on 46 pa...
متن کاملمقایسه وازوموتور راکتیویتی مغز در بیماران دیابت قندی و بدون دیابت قندی
Background and Aim: Diabetes Mellitus (DM) increases the risk of ischemic cerebrovascular diseases two- to four folds as compared to people without diabetes. Macrovascular disease is the leading cause of death among patients with diabetes mellitus. Transcranial Doppler (TCD) is a noninvasive procedure used to assess the hemodynamic changes in Middle Cerebral Artery (MCA). Knowing the influe...
متن کاملDecreased vasoreactivity to right cerebral hemisphere pressure in migraine without aura: a near-infrared spectroscopy study.
OBJECTIVE Several studies have reported changes in cerebrovascular reactivity during the interictal period of migraine. To characterize mechanisms of migraine, we compared changes in total haemoglobin (THbl) and regional oxygen saturation (rSO(2)) of the right and left frontal lobes in response to intracranial pressure changes during the interictal period of migraine. METHODS Twelve right-han...
متن کاملشدت وازوموتور راکتیویتی عروق مغزی در ترومبوز سینوسهای وریدی مغزی ومقایسه آن با وازو راکتیویتی نرمال با استفاده از داپلر ترانس کرانیال
Background and Aim: Thrombosis of the cerebral veins and sinuses is a distinct cerebrovascular disorder that most often affects young adults and children. Failure in brain autonomic activity could be provoked because of damage to energy-dependent cellular membrane pumps resulting from cytotoxic edema and cerebral ischemia. Measurement of vasomotor reactivity (VMR) through Trans-cranial Dopp...
متن کاملوازوموتور راکتیویتی مغز(Cerebrovascular Reactivity) در حاملگی نرمال و پرهاکلامپسی
Background & Aim: Preeclampsia is the major cause of maternal and perinatal morbidity and mortality. Transcranial Doppler(TCD) as a noninvasive procedure is used to assess hemodynamic changes in middle cerebral artery(MCA). Knowing the influence of normal pregnancy and preeclampsia on brain hemodynamics is essential for proper management of anesthesia, labor and vasoactive drug usage in the...
متن کامل