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Is there a strong rationale for deferring elective surgery in patients with poorly controlled hypertension?
Barbara Casadei1, Hala Abuzeid
1University Department of Cardiovascular Medicine, John Radcliffe Hospital, Oxford, UK. barbara.casadei@cardiov.ox.ac.uk
Insights
Managing high blood pressure (hypertension) before surgery is crucial but lacks clear evidence. Further clinical trials are needed to determine if postponing elective surgery for elevated blood pressure reduces cardiac risk.
Area of Science:
- Cardiology
- Anesthesiology
- Perioperative Medicine
Background:
- Hypertension is a common reason for delaying elective surgery, increasing patient burden.
- Current guidelines for hypertension management are robust, yet its role as an independent perioperative risk factor is uncertain.
Purpose of the Study:
- To assess if elevated preoperative blood pressure (BP) is an independent risk factor for perioperative complications.
- To determine if postponing surgery based on preoperative BP reduces cardiac risk.
- To evaluate the predictive value of multiple versus isolated BP measurements and isolated systolic hypertension.
Main Methods:
- This study highlights the need for modern clinical trials to address uncertainties in perioperative hypertension management.
- The research focuses on analyzing existing evidence gaps regarding BP thresholds and measurement strategies.
Main Results:
- Uncertainty exists regarding whether high blood pressure is an independent perioperative risk factor.
- The benefit of postponing surgery due to elevated preoperative BP in reducing cardiac risk is unclear.
- The predictive value of different BP measurement strategies and the risk associated with isolated systolic hypertension require further investigation.
Conclusions:
- There is a lack of controlled evidence to guide recommendations for improving patient safety in perioperative hypertension.
- Modern clinical trials are essential to resolve these critical issues in managing patients with hypertension undergoing surgery.
Abstract:
Hypertension remains one of the most common avoidable medical indications for deferring elective surgery, thereby increasing both the financial and emotional burden of having an operation. Although the evidence supporting the current guidelines on management of hypertension is among the best available in any field of medicine, our knowledge on whether high blood pressure (BP) is an independent perioperative risk factor is plagued by much uncertainty. Indeed, it is still unclear whether postponing surgery on the ground of elevated preoperative BP measurements will lead to a reduction in perioperative cardiac risk. Similarly, the importance of multiple versus isolated BP measurements in predicting perioperative complications has not yet been assessed. As most studies have evaluated the predictive value of diastolic BP, the risk of perioperative cardiovascular events associated with isolated systolic hypertension remains uncertain. With no controlled evidence to address these issues, no firm recommendations can be made to improve patients' safety. These important issues now need to be addressed by modern clinical trials.
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