1. Preoperative chronic beta-blocker prescription in elderly patients as a risk factor for postoperative mortality stratified by preoperative blood pressure: a cohort study
- Author
-
Helen J. Manning, Jonathan G. Hardman, Puja R. Myles, Mark Coburn, Monty G. Mythen, Sudhir Venkatesan, Mads E. Jørgensen, Pierre Foëx, Abdul Mozid, Robert D. Sanders, S Ramani Moonesinghe, Charlotte Andersson, and Michael P.W. Grocott
- Subjects
Male ,medicine.medical_specialty ,medicine.drug_class ,Systolic hypertension ,Adrenergic beta-Antagonists ,Blood Pressure ,Cardiovascular ,Poisons ,Cohort Studies ,03 medical and health sciences ,Postoperative Complications ,0302 clinical medicine ,Risk Factors ,030202 anesthesiology ,Internal medicine ,Preoperative Care ,medicine ,Humans ,Myocardial infarction ,Risk factor ,Beta blocker ,Aged ,Aged, 80 and over ,business.industry ,Odds ratio ,Perioperative ,medicine.disease ,United Kingdom ,Editorial ,Anesthesiology and Pain Medicine ,Blood pressure ,Heart failure ,Hypertension ,Cardiology ,Female ,business - Abstract
Background : Recent data suggest that beta blockers are associated with increased perioperative risk in hypertensive patients. We investigated whether beta blockers were associated with an increased risk in elderly patients with raised preoperative arterial blood pressure. Methods We conducted a propensity-score-matched cohort study of primary care data from the UK Clinical Practice Research Datalink (2004–13), including 84 633 patients aged 65 yr or over. Conditional logistic regression models, including factors that were significantly associated with the outcome, were constructed for 30-day mortality after elective noncardiac surgery. The effects of beta blockers (primary outcome), renin–angiotensin system (RAS) inhibitors, calcium-channel blockers, thiazides, loop diuretics, and statins were investigated at systolic and diastolic arterial pressure thresholds. Results Beta blockers were associated with increased odds of postoperative 30-day mortality in patients with systolic hypertension (defined as systolic BP >140 mm Hg; adjusted odds ratio [aOR]: 1.92; 95% confidence interval [CI]: 1.05–3.51). After excluding patients for whom prior data suggest benefit from perioperative beta blockade (patients with prior myocardial infarction or heart failure), rather than adjusting for them, the point estimate shifted slightly (aOR: 2.06; 95% CI: 1.09–3.89). Compared with no use, statins (aOR: 0.35; 95% CI: 0.17–0.75) and thiazides (aOR: 0.28; 95% CI: 0.10–0.78) were associated with lower mortality in patients with systolic hypertension. Conclusions These data suggest that the safety of perioperative beta blockers may be influenced by preoperative blood pressure thresholds. A randomised controlled trial of beta-blocker withdrawal, in select populations, is required to identify a causal relationship.
- Published
- 2019
- Full Text
- View/download PDF