The changes in the coronary circulation, which are precipitated by the acute occlusion of the coronary sinus, have been investigated. In normal animals, retrograde blood emerging from the peripheral segment of a ligated and transected circumflex coronary artery is small in quantity, and arterial in nature, signifying an insignificant interarterial collateral flow. After the coronary sinus is ar...

BACKGROUND Lateral dural venous sinus thrombosis (LST) represents a serious complication of acute or chronic otitis media. It is thought to develop from the progression of inflammation and granulation tissue formation in the perisinus bone to infection of the sinus wall proper, with incitement of mural thrombosis. Treatment of LST typically includes the administration of broad-spectrum parenter...

Introduction Cerebral venous sinus thrombosis (CVST), although a common diagnosis, is missed frequently by both general practitioners and neurologists. The most common presenting complaints are headache with focal neurological symptoms such as weakness, numbness, and aphasia. CVST has a female predominance of 3:1. A risk factor usually is able to be determined, most common of which is oral cont...

BACKGROUND The superior petrosal vein, one of the most constant and largest drainage pathways in the posterior fossa, may result in complications if occluded. This study calls attention to a unique variant in which the superior petrosal veins and sinus were absent unilaterally, and the venous drainage was through the galenic and tentorial drainage groups. METHODS This study examines one venog...

This is a case study of a 34-year-old woman who was admitted to hospital with a history of severe orthostatic headache. She was diagnosed as having spontaneous intracranial hypotension (SIH) by undetectable cerebrospinal fluid (CSF) pressure at lumbar puncture, and with evidence of diffuse dural enhancement of the brain detected by magnetic resonance imaging (MRI). However, the contrast-enhance...

Cerebral venous sinus thrombosisis an uncommon entity and its clinical presentations are highly variable. We present the case of superior sagittal sinus thrombosis. Although it was medical refractory, successfully treated with mechanical thrombectomy using the Solitaire FR device. A 27-year-old man who presented with venous infarction accompanied by petechial hemorrhage secondary to the superio...

Over recent decades, the numerous coronary revascularisation procedures performed either by percutaneous coronary intervention (PCI), or coronary bypass surgery has led to an increasing number of patients who are no longer eligible for additional revascularisation procedures. This number of patients is expected to rise even further in view of an increase in life expectancy in patients with coro...

BACKGROUND In dural venous sinus thrombosis (DVST), the mortality ranges 5-30%. Deep venous system involvement and septic dural sinus thrombosis have a higher mortality rate. In acute occlusion, collateral flow may not be established, which may result in significant edema and mass effect. Endovascular interventions may be considered as a treatment option in appropriate high-risk patients with D...

BACKGROUND AND PURPOSE In this study, we present our experience with 11 patients with ruptured cavernous sinus aneurysms causing carotid cavernous fistulas (CCFs), to assess the incidence of ruptured cavernous sinus aneurysms causing CCFs and evaluate clinical presentations, treatments, and outcomes. PATIENTS AND METHODS During a 10-year period, 10 of 689 (1.5%) endovascular-treated ruptured ...

1. The reflex control of renin release was studied in subjects with essential hypertension by com­ paring the effects of a variable-pressure neck chamber and head-up tilting. 2. Increase in carotid sinus transmural pressure (obtained by reducing tissue pressure outside the carotid sinus by 34 ± 3 mmHg) decreased mean arterial pressure by 16 + 2 mmHg, but did not reduce significantly the renal v...