Central and peripheral cardiovascular changes immediately after waterpipe smoking.

Area of Science:

• Cardiovascular Physiology
• Tobacco Use Research
• Public Health

Background:

• Waterpipe (WP) smoking is a growing global health concern.
• Cardiovascular risks associated with WP smoking remain uncertain compared to cigarette smoking.
• This study investigates the acute cardiovascular effects of WP smoking in young healthy individuals.

Purpose of the Study:

• To evaluate the immediate effects of waterpipe smoking on central and peripheral cardiovascular indices.
• To assess changes in forearm blood flow, vascular resistance, and venous capacitance.
• To examine heart rate and blood pressure responses post-waterpipe smoking.

Main Methods:

• Strain-gauge plethysmography used to measure forearm hemodynamics (blood flow, vascular resistance, venous capacitance).
• Automated auscultatory methods employed for heart rate and blood pressure measurements.
• Measurements taken at rest and after a 30-minute waterpipe smoking session.

Main Results:

• Waterpipe smoking significantly increased heart rate (6.6%) and blood pressure (diastolic BP 3.6%, mean arterial BP 2.5%).
• Occluded vascular resistance increased by 16%, while occluded blood flow and venous outflow decreased (8.8% and 14.3%, respectively).
• Central cardiovascular changes correlated with peripheral vascular responses.

Conclusions:

• Waterpipe smoking induces immediate alterations in both central and peripheral cardiovascular components.
• The correlation between central and peripheral changes suggests shared regulatory mechanisms during waterpipe smoking.
• Findings highlight potential cardiovascular risks associated with waterpipe use.