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Measuring the Rate of Lipolysis in Ex Vivo Murine Adipose Tissue and Primary Preadipocytes Differentiated In Vitro
Published on: March 17, 2023
β-Adrenergic blockers
William H Frishman1, Elijah Saunders
1Department of Medicine, New York Medical College/Westchester Medical Center, Valhalla, NY, USA. william_frishman@nymc.edu
Insights
Beta-blockers are effective for hypertension, heart conditions, and arrhythmias. Their varied properties require careful selection for optimal patient outcomes and safety.
Area of Science:
- Pharmacology
- Cardiology
- Clinical Medicine
Background:
- Beta-blockers are widely used for cardiovascular conditions.
- Their diverse pharmacologic profiles necessitate careful consideration for clinical application.
- Recent evidence suggests a more nuanced role in perioperative settings.
Purpose of the Study:
- To outline appropriate uses of beta-blockers.
- To highlight the heterogeneity of beta-blocker pharmacologic effects.
- To clarify evidence-based indications for beta-blocker therapy.
Main Methods:
- Review of key points and practical recommendations regarding beta-blocker use.
- Analysis of pharmacologic properties influencing drug selection.
- Evaluation of current evidence for specific clinical scenarios.
Main Results:
- Beta-blockers are indicated for hypertension, ischemic heart disease, heart failure, certain arrhythmias, and hyperkinetic circulation.
- Labetalol is suitable for hypertensive emergencies.
- Heterogeneity in properties like selectivity, sympathomimetic activity, and elimination routes impacts clinical choice.
- Perioperative use may not benefit all patients and can cause harm; evidence supports use in specific vascular surgery and pre-existing cardiovascular conditions.
Conclusions:
- Beta-blockers are valuable for hypertension and various cardiovascular diseases.
- Understanding drug-specific properties is crucial for effective and safe prescribing.
- Evidence supports targeted use in specific patient populations, particularly those with known cardiovascular conditions or undergoing vascular surgery.
Abstract:
KEY POINTS AND PRACTICAL RECOMMENDATIONS: • β-Blockers are appropriate treatment for patients with hypertension and those who have concomitant ischemic heart disease, heart failure, obstructive cardiomyopathy, or certain arrhythmias. • β-Blockers can be used in combination with other antihypertensive drugs to achieve maximal blood pressure control. Labetalol can be used in hypertensive emergencies and urgencies. • β-Blockers may be useful in patients having hyperkinetic circulation (palpitations, tachycardia, hypertension, and anxiety), migraine headache, and essential tremor. • β-Blockers are highly heterogeneous with respect to various pharmacologic effects: degree of intrinsic sympathomimetic activity, membrane-stabilizing activity, β(1) selectivity, α(1) -adrenergic-blocking effect, tissue solubility, routes of systemic elimination, potencies and duration of action, and specific effects may be important in the selection of a drug for clinical use. • β-Blocker usage to reduce perioperative ischemia and cardiovascular complications may not benefit as many patients as was once hoped and may actually cause harm in some individuals. Currently the best evidence supports β-blocker use in two patient groups: patients undergoing vascular surgery with known ischemic heart disease or multiple risk factors for it and for patients already receiving β-blockers for known cardiovascular conditions.
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