Incidence of Arrhythmias in Myocardial Infarction
Incidence of Arrhythmias in Myocardial Infarction
Keywords:
Incidence of Arrhythmias in myocardial InfarctionAbstract
Background: Acute myocardial infarction remains a major health problem. The deaths with acute myocardial infarction are believed to occur within first 24 hours after myocardial infarction and are attributed to arrhythmias. The objective of this study is to assess incidence of arrhythmias in myocardial infarction and to time of their onset in patients presenting with myocardial infarction. Methods: 100 patients with acute myocardial infarction admitted to the ICC unit of Govt. General Hospital, Gulburga & Basaveshwar Teaching & General Hospital Gulburga from one year data were taken for present study. A detailed case history was taken and a meticulous physical examination was done for each patients. This was recorded in a proforma at the time of admission, detailed history, physical examination, ECG changes, echocardiography and serum enzyme levels. Time of onset and type of arrhythmias was also noted. Results: Male to female ratio with 4:1, mortality was more in the group with risk factors of smoking, Hypercholesterolemia, hypertension and diabetes. Commonest arrhythmias noticed in this study were ST-40%, VPBs – 35%, AVB-22%, BBB -20%, SB-15%, and VT -10%. Out of the 100 patients with myocardial infarction studied, 76 patients had arrhythmias. Majority of arrhythmias occurred during less than 12 hours and Sinus tachycardia was the commonest arrhythmia (40%). Conclusion: The commonest arrhythmias encountered were sinus tachycardia followed by ventricular premature beats, AV blocks, bundle branch block, sinus bradycardia and ventricular tachycardia. SB & Complete heart block were more common in IWMI whereas ST, VPC, and UB f were more common with AWMI. In addition to arrhythmias, Cardiogenic shock added to the mortality. 51% of patients developed arrhythmias in one or the other form within 24 hours of admission. [Patil B NJIRM 2014; 5(6):102-107]
References
2. John KA. A history of cardiac arrhythmias. 2nd ed. Chapter I. In: arrhythmias. WB Saunders Company;2000.
3. Hurikuri H., Castellanson A, Myerburg R,. Sudden detah due to cardiac arrhythmias. NEJM; 1990.
4. John MM, Zipes PD. Therapy for cardiac arrhythmias. 7th ed. Chapter 30 In: Heart disease –A textbook of cardiovascular medicine, Braunwald’s. Pennsylvania:WB Saunders Company; 2001. P.713.
5. Martin TC, Longhuyzen HV. The age specific incidence of admission to te intensive care unit for acute myocardial infarction in Antigua and Barbuda. West Indian Med J 2007; 56(4):326-9.
6. Mohit Shah, Nikita Bhatt et al. A study of 100 cases of arrhythmias in the first week of acute MI in Gujarat. J of Clinical and Diagnostic Research 2014; 8(1):58-61.
7. Banerjea J.C. et.al. Some observation on coronary heart disease. IHT 1970; 288.
8. Kock HL, debruin A. Incidence of first acute myocardial infarction in the Netherlands. The Netherlands J Med 2007; 65(11):434-41.
9. Sushma Pandey, Suresh Pandey et al. A prospective study of MI patients admitted in a tertiary care hospital of south-eastern Rajasthan. Int J Biol Med Res. 2012; 3(2):1694-1696.
10. Rotman M, Wanger G, Wallace A Brady arrhythmias in acute myocardial infarction. Circulation 1972; 45:703-22.
11. Podrid PJ. 0Arrthymias after acute myocardial infarction. Postgraduate Medicine 1997; 102(5):679-88.
12. Nair M et.al. Conduction disturbance in acute myocardial infarction, incidence and significance. IHJ 1986: 38:335.
13. Galecera TJ, Moreno M, Alberola G, Polo B, Aranaga M, Fernandez R, Incidence clinical characteristics and prognostic significance of supraventricular tacharrythmias in acute myocardial infarction.PMID;2007.
14. Pizzetti F, Turazza FM, Franzosi MG, Barlera S, Ledd A, Maggioni AP, et al. Incidence and prognostic significance of atrial fibrillation in acute myocardial i: the GISSI-3 data. Heart 2001; 86:527-32.
15. Newby K, Pisano E, Krucoff M, Green C, Natule A. Incidence and clinical relevance of the occurrence of Bundle- Branch Block in patients treated with thyombolytic therapy. Circulation 1996; 94:2424-8.
16. Villacastin J, Almendral J, Arenal A, Albertos J, Ormactxe J, Peinado R, et al. Incidence and clinical significance of multiple consecutive, appropriate, high energy discharges in patients with implanted cardiovester- Defibrillator. Circulation 1996; 93:753-62.
17. Berisso MZ, Daniele M. Value of programmed ventricular stimulation in predicting sudden death and sustained ventricular tachycardia in survivors of acute myocardial infarction. Am J Cardiol 1996; 77:673-80.
18. Kundu SC et al. Profile of MI among the rail road workers in Eastern India- 6 years study. IHJ 1982: 37:2:151.
19. Subramanyam et al. clinical profile of ischemic heart disease. IHJ 1984: 32-48.
20. Murthy R S N et.al. Arrhythmias in acute myocardial infarction study of 80 cases. JAPI 1994: 32-76.
21. Aufderheide TP. Arrhythmias associated with acute myocardial infarction and thrombolysis.Emerg Med Clin North Am. 1998 Aug; 16(3): 583-600.
