• J K Schmitt, K S Koch, and M Midha.
• Department of Internal Medicine, Hunter Holmes McGuire Veterans Administration Medical Center, Richmond, Virginia 23249.
• Paraplegia. 1994 Dec 1;32(12):871-4.

AbstractWe present the case of a 60 year old C6 complete tetraplegic patient who developed profound hypotension following initiation of the angiotensin-converting enzyme inhibitor lisinopril to control blood pressure. Other causes of hypotension, such as myocardial infarction and sepsis was ruled out. Inhibition of the renin-angiotensin-aldosterone system was the probable cause of hypotension. This case demonstrates the critical importance of the renin-angiotensin-aldosterone axis in the maintenance of blood pressure in tetraplegic patients, who may lack input from the brain to sympathetic neurons, and therefore have increased reliance on the renin-angiotensin-aldosterone axis for the maintenance of blood pressure. Angiotensin-converting enzyme inhibitors should be avoided in tetraplegic patients, unless other treatment modalities are ineffective.

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