Pakistan Journal of Medical Sciences

Published by : PROFESSIONAL MEDICAL PUBLICATIONS

ISSN 1681-715X

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Volume 23

October - December 2007 (Part-II)

Number  6


 

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Cardiac mortality trends in the emergency department
of a tertiary care cardiac centre

Shahid Hameed1, Shahzad Tawwab2, Ahmad Shahbaz3,
Waqas Sami4, Mubashar Sherwani5, Muhammad Azhar6

ABSTRACT

Objectives: Limited information is available on trends in mortality from cardiovascular diseases in Pakistan. The objective of this study was to examine the various cardiac causes of early deaths and asses the treatment strategies in emergency department of a tertiary care cardiac centre.

Methodology: We conducted a prospective observational study of early deaths over an eight months period. Data of emergency admissions from June 2006 to January 2007 was analyzed.

Results: There were 357 early deaths; median age 60 years, and median survival time 1.55 hours. There were 6221 emergency admissions, with 4.6% of men and 9.4% of women having early mortality in emergency department. Only 14 were non-cardiac deaths and 314 (88%) were cardiac related deaths. Valvular heart disease comprised 6% of cardiac deaths. There were 373 cases received dead in emergency and assumed to be sudden cardiac deaths. Cardiogenic shock (CS) was the leading cause (265, 74%) of cardiac deaths and ST elevation myocardial infarction (STEMI) comprised nearly half of those deaths (130, 49%). Only 39% (51/130) of STEMI patients were thrombolysed and there was only marginal difference in the survival time of patients with or without lytic therapy. ST depression was seen in 17% of CS patients. Ventricular fibrillation and ventricular tachycardia constituted only 20% of cardiac deaths. Complete heart block (CHB) was seen in a quarter of CS patients and emergency transvenous pacing was successful in 67% (42/63). The survival time was shorter in patients with failure to pace acutely; men (0.50 vs. 1.30 hrs), women (1.00 vs. 2.15 hrs)

Conclusions: A very large number of early deaths were cardiac and cardiogenic shock was the major cause. Only half of cardiogenic shock patients had diagnostic ECG changes of ST segment elevation and less than half of these were thrombolysed.

KEY WORDS: Cardiac mortality, Emergency mortality, Cardiogenic shock, Myocardial infarction.

Pak J Med Sci    October - December 2007 (Part-II)    Vol. 23 No. 6    825-831


1. Shahid Hameed,
2. Shahzad Tawwab,
3. Ahmad Shahbaz,
4. Waqas Sami,
5. Mubashar Sherwani,
6. Muhammad Azhar,
1-6: Punjab Institute of Cardiology,
Lahore – Pakistan.

Correspondence:
Dr. Shahid Hameed MRCP,
Assistant Professor,
Punjab Institute of Cardiology,
Lahore – Pakistan.
E-mail: shahdham@yahoo.com

* Received for Publication: August 10, 2007
* Revision Received: August 24, 2007
* Final Revision Accepted: September 22, 2007



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