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Updated: Jul 2, 2026

Invasive Hemodynamic Characterization of the Portal-hypertensive Syndrome in Cirrhotic Rats
Published on: August 1, 2018
Peri-operative blood pressure changes in normotensive and hypertensive patients
K S Poh1, T A Lim, I Noor Airini
1Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Hospital Kuala Lumpur, Jalan Masjid, 50586 Kuala Lumpur.
Abstract:
Controversy surrounds the acceptance of hypertension as an independent risk factor for anaesthesia. In an attempt to identify variables that are associated with increased haemodynamic instability during surgery, the blood pressure profiles of 128 patients were analysed. The two variables that contributed most to the instability were pre-operative control of blood pressure and anaesthetic technique. To reduce the fluctuation in blood pressure, it is advisable for patients to be given a regional anaesthetic. Current therapy for hypertension appears to exaggerate the depressant effects of anaesthetic drugs. Care must be taken not only to prevent hypertensive episodes during surgery, but also hypotension.
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