Key result
Smoking a single cigarette reduced mean digital blood-flow velocity by 42±6% in male volunteers, whereas velocity remained unchanged in the control group.
Why the study?
Does smoking a single cigarette reduce digital blood-flow velocity in male volunteers?
Population
20 male volunteers (two groups of ten)
Comparison
Smoking one cigarette vs No smoking
Design
Other
Follow-up
Immediate (before and after smoking)
Authors
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Supports acute vascular effects of smoking; leaves open translation to clinical events or cessation guidance.
Does smoking a single cigarette reduce digital blood-flow velocity in male volunteers?
Effect estimate: 42±6% reduction
Smoking a single cigarette acutely and significantly reduces digital blood-flow velocity, demonstrating immediate adverse vascular effects.
C. L. Sarin (1974) studied this question. Smoking vs. No smoking (measurements at the same intervals) was evaluated on Mean digital blood-flow velocity (measured via Doppler shift) (42±6% reduction). Smoking a single cigarette reduced mean digital blood-flow velocity by 42±6% in male volunteers, whereas velocity remained unchanged in the control group.
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