Biomaterial Database

Ketanserin and capillary flow in Raynaud's phenomenon. 1990

J E Tooke, and S A Williams, and D W Rawlinson, and C Black

Department of Physiology, Charing Cross and Westminster Medical School, London, U.K.

The serotonin (S2) antagonist ketanserin has been proposed as a useful therapy for Raynaud's phenomenon. The present study was designed to investigate the effects of 8 weeks therapy with oral Ketanserin (40 mg tds for the last 6 weeks) on finger nailfold capillary flow velocity at rest and following cold challenge and symptom score in 30 patients with Raynaud's in a double-blind, placebo-controlled, parallel design study. The ketanserin treated group reported a 16.7% improvement in symptom score (p less than 0.05) relative to the end of the run-in phase compared with a 2.4% (NS) improvement in the placebo group. Improvement in capillary flow was confined to a significant (p less than 0.02) rise in rest flow in the ketanserin treated group but no beneficial changes were observed following cold challenge. The disparity between the subjective and objective benefits demonstrated for this drug suggest the possibility of a central action rather than one that involves the correction of a local vascular fault.

UI	MeSH Term	Description	Entries
D007650	Ketanserin	A selective serotonin receptor antagonist with weak adrenergic receptor blocking properties. The drug is effective in lowering blood pressure in essential hypertension. It also inhibits platelet aggregation. It is well tolerated and is particularly effective in older patients.	3-(2-(4-(4-Fluorobenzoyl)piperidinol)ethyl)-2,4(1H,3H)-quinazolinedione,R-41,468,R-41468,R 41,468,R 41468,R41,468,R41468
D008297	Male		Males
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D011928	Raynaud Disease	An idiopathic vascular disorder characterized by bilateral Raynaud phenomenon, the abrupt onset of digital paleness or CYANOSIS in response to cold exposure or stress.	Cold Fingers, Hereditary,Raynaud Phenomenon,Raynaud's Disease,Raynauds Disease
D001783	Blood Flow Velocity	A value equal to the total volume flow divided by the cross-sectional area of the vascular bed.	Blood Flow Velocities,Flow Velocities, Blood,Flow Velocity, Blood,Velocities, Blood Flow,Velocity, Blood Flow
D002196	Capillaries	The minute vessels that connect arterioles and venules.	Capillary Beds,Sinusoidal Beds,Sinusoids,Bed, Sinusoidal,Beds, Sinusoidal,Capillary,Capillary Bed,Sinusoid,Sinusoidal Bed
D003080	Cold Temperature	An absence of warmth or heat or a temperature notably below an accustomed norm.	Cold,Cold Temperatures,Temperature, Cold,Temperatures, Cold
D005260	Female		Females
D005385	Fingers	Four or five slender jointed digits in humans and primates, attached to each HAND.	Finger
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man