The Dead Sea (barometric pressure: 800 mmHg) is an important balneotherapeutic centre for chronic dermatologic and arthritic diseases. In the past, hypertensive patients have complained sporadically of weakness and dizziness during a stay in the Dead Sea. It was therefore recommended that hypertensives do not stay at these health centres. The aim of our study was to investigate the changes in blood pressure (BP) parameters of 72 hypertensive and normotensive osteoarthritic and rheumatoid arthritic elderly patients during a 2-week stay in the Dead Sea, and to further evaluate the effect of different balneotherapeutic means on these BP changes. Following a primary BP assessment at the out-patient clinic (Beer Sheva barometric pressure: 745 mmHg), the patients were divided into four groups: (1) thermomineral pool; (2) Dead Sea water baths; (3) combination of the aforementioned treatments; and (4) controls (no balneotherapy). We demonstrated that the systolic BP (SBP) of hypertensives and normotensives decreased by an average of 17 mmHg and that diastolic BP (DBP) decreased by an average of 8 mmHg from their basic clinic-measured values. These favourable results were sustained during the first 10 days duration, and by the end of their stay they had diminished slightly. Thermomineral water had an additional lowering effect on the BP of the normotensives, but the SBP of hypertensives increased. Immediately following Dead Sea bath immersion, we noted a temporary increase of SBP in normotensives only. No patient, hypertensive or normotensive, complained of dizziness, malaise, or any other complaint. In our experience, patients feel well at low altitudes, and there is no justification in upholding hypertension as a contraindication to balneotherapy in the Dead Sea.
Reprinted by permission from Journal of Human Hypertension, Macmillan Publishers Ltd.

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