Perfusion of Intrapulmonary Arteriovenous Anastomoses Is Not Related to VO2max in Hypoxia and Is Unchanged by Oral Sildenafil

2019 ◽  
Vol 20 (4) ◽  
pp. 399-406
Author(s):  
Eric A. Carter ◽  
Sarah Koch ◽  
James P. O'Donovan ◽  
A. William Sheel ◽  
William K. Milsom ◽  
...  
Keyword(s):  
Arteriovenous Anastomoses

Varicose Veins and Arteriovenous Shunts: A Review

1990 ◽  
Vol 5 (2) ◽  
pp. 77-83 ◽  
Author(s):  
H. J. Scott
Keyword(s):  
Varicose Veins ◽  
Haemodynamic Effects ◽  
Predisposing Factors ◽  
Bowel Habit ◽  
Arteriovenous Anastomoses ◽  
Vein Wall ◽  
Arteriovenous Shunts ◽  
Causative Factors

The pathogenesis of the development of varicose veins remains obscure, and there have been many theories suggesting the primary cause. Recognized predisposing factors include age, sex, race, weight, height, pregnancy, diet, erect stance, clothes, alcohol, heredity, bowel habit and occupation. However the primary causative factors have centred around vein wall weaknesses, valvular deficiencies, and haemodynamic effects. This review looks at the evidence for and against arteriovenous anastomoses being the initiating factor in the development of varicose veins.

Arteriovenous anastomoses in the skin of tropical cattle

1976 ◽  
Vol 96 (2) ◽  
pp. 285-300 ◽  
Author(s):  
S.F. Amakiri
Keyword(s):  
Arteriovenous Anastomoses

scholarly journals Arteriovenous Anastomoses in the Dermal Vasculatureof the Skin of Bos taurus Cattle, and their Relationship with Resistance to the Tick, Boophilus micro plus

1981 ◽  
Vol 34 (1) ◽  
pp. 27 ◽  
Author(s):  
AV Schleger ◽  
DT Lincoln ◽  
AS Bourne
Keyword(s):  
High Resistance ◽  
Bos Taurus ◽  
Neck Region ◽  
Skin Layer ◽  
Mean Value ◽  
Arteriovenous Anastomoses ◽  
Tick Feeding ◽  
Resistance Level ◽  
Low Resistance ◽  
The Mean

Bos taurus cattle with high resistance to the tick Boophilus micro plus, whether free-grazing or in covered pens, had significantly more arteriovenous anastomoses (A VA) in their skin than did animals of low resistance. These differences in number of A VA associated with resistance level were most marked above the level of the sebaceous gland in the neck region, an area favoured for tick feeding. In this skin layer, the number of AVA in low-resistance animals (4�0�0�4 per 2�1 mm) was significantly lower than in animals of high resistance (12�3 � 2�2 per 2�1 mm) while the mean value for the naive animals (8�2 � 1 �9 per 2�1 mm) was intermediate. No differences in morphology of AVA were detectable between the three groups using light microscopy.

Arteriovenous anastomoses in the canine renal allograft

1967 ◽  
Vol 5 (4) ◽  
pp. 742
Author(s):  
L. E. Almgard ◽  
P. O. Granberg ◽  
C Lagergren ◽  
A. Ljungqvist
Keyword(s):  
Renal Allograft ◽  
Arteriovenous Anastomoses
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