Contraindications to sauna for heart failure patients Severe aortic stenosis, unstable angina pectoris recent myocardial infarction uncontrolled hypertension decompensated or ischaemic heart failure Relative contraindications Cardiac arrhythmia Patients receiving Alcohol beta-blockers Nitrates Elderly persons prone to orthostatic hypotension causing syncope Severe valvular disease Possible contraindications/cautions Fever [...]