Racial and Ethnic Disparities in the Management and Outcomes of Acute Myocardial Infarction Complicated by

Maninder Randhawa1, Dylan Yu1, Anand Rai1

  • 1Department of Internal Medicine, Western Michigan University Homer Stryker M.D. School of Medicine, Kalamazoo, MI 49007, USA.

Insights

Racial and ethnic disparities impact acute myocardial infarction (AMI) outcomes with ventricular arrhythmias (VAs). Hispanic and other groups faced higher mortality, while Black, Hispanic, and other groups received less intervention for AMI with VAs.

Area of Science:

  • Cardiology
  • Health Disparities Research
  • Inpatient Outcomes Analysis

Background:

  • Ventricular arrhythmias (VAs) are a significant complication of acute myocardial infarction (AMI), leading to increased morbidity and mortality.
  • Understanding racial and ethnic disparities in AMI management and outcomes is crucial but remains incomplete.

Purpose of the Study:

  • To investigate racial and ethnic disparities in the management and in-hospital outcomes of patients with AMI complicated by VAs.
  • To compare outcomes and procedural utilization across different racial and ethnic groups.

Main Methods:

  • Retrospective analysis of 902,398 hospitalizations with AMI and VAs from 2002-2022 using the National Inpatient Sample.
  • Stratification of hospitalizations by race/ethnicity (White, Black, Hispanic, Other).
  • Comparison of baseline characteristics and in-hospital outcomes, including mortality and procedural interventions (PCI, CABG, ICD).

Main Results:

  • Hispanic and other racial/ethnic groups had higher odds of in-hospital mortality compared to White patients.
  • Black, Hispanic, and other racial/ethnic groups had lower odds of percutaneous coronary intervention (PCI) compared to White patients.
  • Black patients had lower odds of coronary artery bypass grafting (CABG) and implantable cardioverter-defibrillator (ICD) insertion compared to White patients.

Conclusions:

  • Significant racial and ethnic disparities exist in the prevalence, management, and in-hospital outcomes of AMI complicated by VAs.
  • Differences in care were observed across racial and ethnic groups, particularly in procedural interventions.
  • Further research and targeted interventions are necessary to address these disparities in high-risk patient populations.

Related Concept Videos

Disturbances in Heart Rhythm01:29

Disturbances in Heart Rhythm

Arrhythmia or dysrhythmia refers to an abnormal heart rhythm caused by a defect in the heart's conduction system. It can cause the heart to beat irregularly, too quickly, or too slowly, leading to symptoms like chest pain, shortness of breath, and fainting. Factors such as stress, caffeine, alcohol, nicotine, cocaine, certain drugs, congenital defects, diseases, and electrolyte abnormalities can trigger arrhythmias.
Arrhythmias are categorized by their speed, rhythm, and origin. A slow heart...
Mechanism of Cardiac Arrhythmias01:28

Mechanism of Cardiac Arrhythmias

Arrhythmias are irregular heart rhythms occurring when the heart's electrical impulses become abnormal. These disturbances can lead to various symptoms, depending on their severity and the underlying cause. Some common factors contributing to arrhythmias include hypoxia, ischemia, electrolyte imbalances, excessive catecholamine exposure, drug toxicity, and muscle overstretching. Arrhythmias can be classified into two main types based on the rate and site of origin of abnormal heart rhythms.
ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias01:25

ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias

Arrhythmia is a condition characterized by an irregular heart rhythm, with ECG changes that differ based on its origin and nature. The types of arrhythmias discussed below include atrial, junctional, and ventricular arrhythmias.Atrial ArrhythmiasPremature Atrial Complexes (PACs): PACs are early atrial beats caused by stress, caffeine, alcohol, electrolyte imbalances, hypoxia, hyperthyroidism, or certain medications (e.g., bronchodilators and decongestants). The ECG shows early P waves with an...
Dysrhythmias VI: Management of Dysrhythmias01:25

Dysrhythmias VI: Management of Dysrhythmias

Dysrhythmia management involves a multifaceted approach, incorporating pharmacological treatments, medical procedures, surgical interventions, lifestyle modifications, and patient education.Pharmacological ManagementAntiarrhythmic Drugs:Class I (Sodium Channel Blockers): This class includes quinidine and procainamide, which reduce the speed of impulse conduction in the heart, stabilize the cardiac membrane, and control arrhythmias. Quinidine and procainamide are Class IA agents that prolong the...
Dysrhythmias V: Evaluating Dysrhythmias01:30

Dysrhythmias V: Evaluating Dysrhythmias

Dysrhythmias, also known as arrhythmias, are disturbances in the heart's rhythm that range from benign to life-threatening. A thorough evaluation is crucial for appropriate management and involves a comprehensive medical history, physical examination, and various diagnostic tests.Medical HistorySymptoms: Collect detailed information on palpitations, dizziness, syncope, chest pain, and fatigue. Note their onset, frequency, and triggers.Previous Cardiac Issues: Document any history of heart...
Dysrhythmias VII: Nursing Management of Dysrhythmias01:25

Dysrhythmias VII: Nursing Management of Dysrhythmias

Nursing management of dysrhythmias involves the following:AssessmentSubjective Assessment:The initial step involves gathering patient-reported symptoms such as dizziness, palpitations, and chest discomfort. It is crucial to collect a detailed history, including previous heart conditions, current medication use, and lifestyle factors like caffeine and alcohol consumption.Objective Assessment:This involves observing clinical signs such as jugular venous distention, cool and pale skin, and...