hypertension and scuba diving

Hypertensive patients may encounter certain risks while diving. The increased pressure underwater can lead to a further rise in blood pressure, potentially elevating the risk of cardiovascular incidents. Moreover, factors such as cold temperatures, physical exertion, and emotional stress during diving could adversely impact individuals with hypertension.

Upon closer examination, the increased underwater pressure can cause a redistribution of blood within the body, directing more blood flow to the heart and brain, which may result in a further increase in blood pressure. Cold environments encountered while diving can constrict blood vessels, thereby raising blood pressure. Additionally, physical activity and emotional arousal during diving can quicken the heart rate and increase blood pressure. Lastly, individuals on antihypertensive medications may experience hypotension while diving, posing another potential risk.

Consequently, hypertensive patients who wish to dive should do so under medical supervision and undergo a thorough physical examination prior to diving to ensure their physical condition is appropriate for the activity. During the dive, they should manage their emotions to prevent excessive excitement, maintain warmth to avoid hypothermia, and monitor their blood pressure to promptly identify and address any issues.

In general, although there are risks associated with diving for hypertensive patients, most can safely participate in diving activities with proper medical guidance and preventive measures. However, if any discomfort arises during the dive, they should cease diving immediately and seek medical assistance.