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A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis
18:11

A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis

Published on: December 28, 2012

Hypertension and silent myocardial ischemia: their influence on cardiovascular mortality and morbidity

B Hedblad1, L Janzon

  • 1Department of Community Health Sciences, Lund University, Malmö General Hospital, Sweden.

Cardiology
|January 1, 1994
PubMed

Insights

Hypertension management is crucial for heart health. Inadequate blood pressure control in elderly men significantly increases cardiac events, highlighting the importance of effective antihypertensive treatment.

Area of Science:

  • Cardiology
  • Hypertension Research
  • Preventive Cardiology

Background:

  • Ambulatory electrocardiographic monitoring (AEM) is vital for assessing cardiac health.
  • Hypertension is a significant risk factor for cardiovascular events.
  • ST-segment depression on AEM can indicate silent myocardial ischemia.

Purpose of the Study:

  • To investigate the relationship between ST-segment depression during AEM and blood pressure control in hypertensive elderly men.
  • To determine the association between ST-segment depression, cardiac events, and blood pressure management.

Main Methods:

  • A non-randomized study involving 167 hypertensive men from the 'Men born in 1914' Malmö study.
  • Exclusion of men with a history of ischemic heart disease.
  • Monitoring of ST-segment depression via AEM in relation to diastolic blood pressure (DBP) and antihypertensive therapy.

Main Results:

  • A high frequency of ST-segment depression (41%) and cardiac events (14%) were observed in hypertensive men with inadequately controlled blood pressure (DBP ≥ 95 mm Hg).
  • Inadequately controlled hypertension was associated with a 9.8-fold increased relative risk of cardiac events, independent of lifestyle factors.
  • Men with adequate blood pressure control showed lower rates of ST-segment depression (21%) and cardiac events (5%).

Conclusions:

  • ST-segment depression during AEM in hypertensive elderly men may signify silent myocardial ischemia.
  • Effective antihypertensive treatment is associated with a reduced rate of cardiac events.
  • The incidence of asymptomatic ST-segment depression and cardiac events in hypertensive patients is partly related to blood pressure control levels.

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