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In-hospital outcome of patients with acute STEMI with impaired renal function

K Pasha1, M A Ali, M A Habib

  • 1Department of Cardiology, Square Hospitals Ltd. Dhaka, Bangladesh.

Mymensingh Medical Journal : MMJ
|August 2, 2011
PubMed

Insights

Patients with ST-segment elevation myocardial infarction (STEMI) and impaired renal function experience higher rates of in-hospital complications. Early identification and aggressive management of renal impairment in STEMI patients are crucial for improving outcomes.

Area of Science:

  • Cardiology
  • Nephrology
  • Internal Medicine

Background:

  • Acute coronary syndromes require effective risk stratification for optimal patient management.
  • Renal function is a critical factor influencing outcomes in cardiovascular diseases.

Purpose of the Study:

  • To evaluate the association between on-admission renal function and in-hospital outcomes in patients with ST-segment elevation myocardial infarction (STEMI).
  • To identify specific complications and their prevalence related to renal impairment in STEMI patients.

Main Methods:

  • Prospective study involving 90 patients with a first episode of acute STEMI.
  • Patients were grouped based on renal function: normal (Group I) versus impaired (Group II).
  • In-hospital outcomes including heart failure (Killip class), left ventricular ejection fraction (LVEF), and ventricular tachycardia were assessed.

Main Results:

  • Patients with renal impairment (Group II) showed significantly higher rates of Killip class II and IV heart failure compared to those with normal renal function (Group I) (p<0.001).
  • Mean LVEF was significantly lower in Group II patients (47.9±6.3) versus Group I (52.0±5.2) (p<0.01).
  • Ventricular tachycardia occurred in a significantly higher proportion of Group II patients (63.5%) compared to Group I (7.4%) (p<0.001).

Conclusions:

  • In-hospital complications of acute STEMI, including heart failure and ventricular tachycardia, are significantly more prevalent in patients with associated renal impairment.
  • Renal impairment is associated with poorer cardiac function (lower LVEF) in STEMI patients.
  • These findings suggest the potential for developing a simple bedside prognostic tool and emphasize the need for aggressive management strategies in STEMI patients with renal impairment to reduce morbidity and mortality.

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