Related Experiment Videos

Comorbid conditions and outcomes after percutaneous coronary intervention

M Singh1, C S Rihal, V L Roger

  • 1Division of Cardiovascular Diseases, Mayo Clinic, Rochester, Minnesota 55905, USA. singh.mandeep@mayo.edu

Heart (British Cardiac Society)
|October 10, 2007
PubMed

Insights

Adding comorbid conditions to the Mayo Clinic Risk Score (MCRS) significantly improves prediction of long-term mortality after percutaneous coronary intervention (PCI), but not in-hospital outcomes.

Area of Science:

  • Cardiology
  • Medical Informatics
  • Public Health

Background:

  • Percutaneous coronary intervention (PCI) is a common procedure for coronary artery disease.
  • Accurate risk stratification is crucial for predicting outcomes after PCI.
  • Existing risk models may not fully capture the impact of comorbid conditions on patient outcomes.

Purpose of the Study:

  • To evaluate the added value of comorbid conditions in predicting in-hospital outcomes and long-term mortality following PCI.
  • To assess the discriminatory ability of the Mayo Clinic Risk Score (MCRS) alone and when combined with a coronary artery disease (CAD)-specific index for comorbid conditions.

Main Methods:

  • Retrospective chart review of 7659 patients undergoing 9032 PCIs at an academic medical center.
  • Utilized the Mayo Clinic Risk Score (MCRS) and a CAD-specific index for comorbid conditions.
  • Analyzed in-hospital major adverse cardiovascular events (MACE) and long-term all-cause mortality.

Main Results:

  • The MCRS and CAD-specific index both correlated with increased in-hospital MACE.
  • The MCRS alone had a c-statistic of 0.78 for in-hospital MACE; adding the CAD-specific index did not significantly improve this (c-statistic = 0.78, p=0.29).
  • For long-term all-cause mortality, the MCRS model had a c-statistic of 0.69, which improved to 0.75 when the CAD-specific index was added (p<0.001).

Conclusions:

  • Comorbid conditions, assessed by the CAD-specific index, provide significant prognostic information for long-term mortality after PCI.
  • These comorbid conditions offer limited additional predictive value for in-hospital complications following PCI.
  • Future risk stratification models for long-term PCI outcomes should incorporate health-status measures like comorbid conditions.
Abstract

Related Concept Videos

Acute Coronary Syndrome IV: Interprofessional Care01:28

Acute Coronary Syndrome IV: Interprofessional Care

IntroductionThe management of Acute Coronary Syndrome (ACS) aims to minimize myocardial damage, preserve myocardial function, and prevent complications.Initial ManagementInpatient management involves continuous cardiac monitoring, preferably in an ICU, focusing on blood pressure, serum sodium, potassium, and creatinine levels, and urine output. Ongoing pharmacologic management is crucial for stabilizing the patient.Supplemental Oxygen: Administer supplemental oxygen if oxygen saturation is...
Coronary Artery Disease V: Interprofessional Care01:27

Coronary Artery Disease V: Interprofessional Care

Interprofessional care for coronary artery disease includes pharmacological therapy and revascularization procedures.Pharmacological therapy for Coronary Artery Disease (CAD) aims to manage symptoms, prevent complications, and improve patient outcomes through various classes of medications:Antiplatelet Agents:Aspirin and Clopidogrel: These medications inhibit platelet aggregation, preventing blood clots, which is crucial for avoiding heart attacks and strokes. Doctors often prescribe these...
Acute Coronary Syndrome II: Pathophysiology and Clinical Manifestations01:19

Acute Coronary Syndrome II: Pathophysiology and Clinical Manifestations

The pathophysiology of Acute Coronary Syndrome [ACD] involves several key processes:The main underlying cause of ACD is atherosclerosis, a chronic inflammatory disease characterized by the buildup of lipid-laden plaques within the coronary arteries.As the atherosclerotic plaque grows in the coronary artery, it may become unstable due to the formation of a lipid-rich core and a thin fibrous cap. Inflammatory cells within the plaque, such as macrophages, secrete enzymes that degrade the...
Acute Coronary Syndrome III: Diagnostic Studies01:30

Acute Coronary Syndrome III: Diagnostic Studies

Diagnosing acute coronary syndrome or ACS begins with a thorough patient history. Notable symptoms include central, crushing chest pain radiating to the left arm, neck, jaw, or back, along with shortness of breath, sweating (diaphoresis), nausea, vomiting, dizziness, and palpitations.It is crucial to note any history of cardiac illnesses and assess risk factors, including age, gender, smoking, hypertension, diabetes, hyperlipidemia, and a sedentary lifestyle.During physical examination, vital...
Acute Coronary Syndrome I: Introduction01:30

Acute Coronary Syndrome I: Introduction

Acute Coronary Syndrome (ACS) encompasses a spectrum of heart conditions caused by sudden obstruction of coronary arteries, typically resulting from the rupture of an atherosclerotic plaque and subsequent thrombus (blood clot) formation. This obstruction can lead to partial or complete blockage of blood flow, causing varying degrees of myocardial ischemia or infarction.ACS includes the following clinical entities:Unstable Angina (UA)Non-ST-Elevation Myocardial Infarction (NSTEMI)ST-Elevation...
Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation01:21

Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation

Clinical manifestationsPeripheral Arterial Disease (PAD) manifests through a range of symptoms, from the characteristic intermittent claudication to atypical presentations and severe complications in advanced stages. Intermittent claudication, a hallmark symptom of PAD, presents as exercise-induced muscle pain that typically resolves within minutes of rest. This pain is reproducible and stems from inadequate blood flow, leading to the accumulation of lactic acid produced during anaerobic...