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[Perioperative cardiovascular complications in patients with hypertrophic cardiomyopathy]
Masayuki Kuroiwa1, Masayasu Arai, Tetsuo Ueno
1Department of Anesthesiology, Kitasato University School of Medicine, Sagamihara 228-8520.
Insights
Patients with hypertrophic cardiomyopathy (HCM) face a high risk of cardiac complications during noncardiac surgery. Congestive heart failure and myocardial ischemia are significant concerns, necessitating careful management.
Area of Science:
- Cardiology
- Anesthesiology
- Cardiovascular Surgery
Context:
- Hypertrophic cardiomyopathy (HCM) is a significant cardiac condition.
- Noncardiac surgery presents unique risks for patients with cardiovascular diseases.
- Understanding perioperative cardiac complication incidence in HCM is crucial.
Purpose:
- To determine the incidence of cardiac complications in patients with hypertrophic cardiomyopathy (HCM) undergoing noncardiac surgery.
- To identify factors associated with perioperative cardiovascular complications in HCM patients.
Summary:
- A retrospective study of 66,000 patients (1989-2000) identified 30 with HCM.
- Sixty percent of HCM patients experienced perioperative cardiovascular complications, including congestive heart failure (10%) and myocardial ischemia (13%).
- No myocardial infarction, life-threatening arrhythmias, or cardiac deaths were recorded. Associated factors included obstructive HCM (HOCM), major surgery, general anesthesia, and specific preoperative medications.
Impact:
- Highlights a high incidence of cardiac complications in HCM patients during noncardiac procedures.
- Suggests that specific patient (HOCM) and surgical factors (major surgery, general anesthesia) increase risk.
- Informs anesthetic and surgical management strategies for HCM patients to mitigate perioperative cardiac events.
Background:
The aim of this study was to examine the incidence of cardiac complications in patients with hypertrophic cardiomyopathy (HCM) during noncardiac surgery.
Methods:
A retrospective study was made for surgical patients in the period of 1989-2000 at Kitasato University Hospital.
Results:
Thirty out of 66000 patients were preoperatively diagnosed as HCM. Sixty percent of the HCM patients had one or more perioperative cardiovascular complications. There were perioperative congestive heart failure in 3 patients (10%), and myocardial ischemia in 4 patients (13%). However, there were no myocardial infarction, no life-threatening dysarrthythmia and no cardiac death. Factors which appeared to be associated with the perioperative cardiovascular complications were the type of HCM (HOCM), major surgery, general anesthesia and preoperative medication with a beta-blocker or a calcium channel blocker.
Conclusions:
It is suggested that patients with HCM undergoing noncardiac surgery have a high incidence of cardiac complications such as congestive heart failure and myocardial ischemia.