Preoperative Cardiac Risk Assessment

Major adverse cardiac events are common causes of perioperative mortality and major morbidity. Preventing these complications requires thorough preoperative risk assessment and postoperative monitoring of at-risk patients. Major guidelines recommend assessment based on a validated risk calculator that incorporates patient- and procedure-specific factors. American and European guidelines define when stress testing is needed on the basis of functional capacity assessment. Favoring cost-effectiveness, Canadian guidelines instead recommend obtaining brain natriuretic peptide or N-terminal prohormone of brain natriuretic peptide levels to guide postoperative screening for myocardial injury or infarction. When conditions such as acute coronary syndrome, severe pulmonary hypertension, and decompensated heart failure are identified, nonemergent surgery should be postponed until the condition is appropriately managed. There is an evolving role of biomarkers and myocardial injury after noncardiac surgery to enhance risk stratification, but the effect of interventions guided by these strategies is unclear.

Author/s:

Raslau, D, Bierle, DM, Stephenson, CR, Mikhail, MA, Kebede, EB, Mauck, KF

Primary Prevention of Sudden Cardiac Death

Brian Desmarais — Wed, 19 Jun 2019 00:11:44 +0000

Date Added:

June 18, 2019

Journal/Publication:

Journal of the American Medical Association

Publisher:

Journal of the American Medical Association

Publication Date:

June 13, 2019

URL:

Primary Prevention of Sudden Cardiac Death

Type:

Meta-analyses, Reviews, and Guidelines

Format:

Article

DOI (1):

10.1001/jama.2019.7662

Keywords

MeSH

Angiotensin-Converting Enzyme Inhibitors

Mineralocorticoid Receptor Antagonists

myocardial infarction

Receptors, Angiotensin

Death, Sudden, Cardiac

Angiotensin Receptor Antagonists

This is the most recent AHA/ACC guideline regarding how to reduce the risk of sudden cardiac death in those at risk.

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In patients with heart failure with reduced ejection fraction (<40%), guideline-directed medical therapy (GDMT) is recommended to reduce sudden cardiac death and all-cause mortality; GDMT includes β-blockers; mineralocorticoid receptor antagonists; and angiotensin-converting enzyme inhibitors, angiotensin receptor blockers, or angiotensin receptor–neprilysin inhibitors (class I, level A recommendation).
In patients with left ventricular ejection fraction (LVEF) of 35% or less due to ischemic heart disease at least 40 days after myocardial infarction, at least 90 days after revascularization, and with New York Heart Association (NYHA) class II or III heart failure despite GDMT, an ICD is recommended if expected survival is greater than 1 year (class I, level A recommendation).
In patients with LVEF of 30% or less due to ischemic heart disease at least 40 days after myocardial infarction, at least 90 days after revascularization, and with NYHA class I heart failure symptoms despite GDMT, an ICD is recommended if expected survival is greater than 1 year (class I, level A recommendation).
In patients with nonischemic cardiomyopathy, NYHA class II to III symptoms, and LVEF of 35% or less despite GDMT, an ICD is recommended if expected survival is greater than 1 year (class I, level A recommendation).

Author/s:

Beaser, A.D., Cifu, A.S.