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Background: Acute myocardial Infarction (AMI) is one of the life threatening manifestation of cardiovascular diseases. Death from arrhythmias especially ventricular tachycardia has been one of the commonest causes of immediate cardiac death following acute myocardial infarction. 1,2
AIM: To study the clinical profile of arrhythmias in ST Elevation myocardial infarction (STEMI) during the first 48 hours of hospital admission.
OBJECTIVES: The specific objectives of the studies were as follows:
1. To study incidence and profile of different types of recent onset arrhythmias in acute STEMI
2. To study various types of arrhythmias in co relation to the wall involved on ecg
3. To study various types of arrhythmias in co relation to time between the admission and the onset.
4. To analyse risk factors associated with different types of arrythmias.
5. To study the prognosis of the patient associated with different types of arrythmias.
Methodology: This cross sectional study was carried out at the Medicine Department of Rohilkhand Medical College and Hospital in Bareilly, Uttar Pradesh. Chief complaints were noted and detailed history along with clinical examination was done on the patients to grade them according to NYHA classification for severity of cardiac symptoms and KILLIPS grading for heart failure. This was followed by relevant investigations like 12 lead ECG, TROPONIN-T, 2D ECHO. Diagnosis of STEMI was made on the basis of clinical features which were characteristic of MI, ECG findings and TROPONIN-T levels. This was followed by regular monitoring of ECG at presentation, after 24 hours and at 48 hours. . In this study,100 cases of AMI with ST elevation in ECG presenting to the Casuality room of Rohilkhand Medical College and hospital, Bareilly were studied for incidence of various recent onset arrhythmias in first 48 hour relation, wall involved and chronicity of illness.
Results: In this study, the arrythmia been noted with different duration of time at presentation which is consider 0 hour then at 24hour and at 48 hours. Sinus tachycardia was the most common finding in all groups. At presentation most commonly arrythmia resulted is sinus tachycardia 55% and then sinus bradycardia 9%, CHB and RBBB in 6%, wide QRS and VPC in 5% and AF in 2%, rest sinus rhythm in 9%. At 24hr, sinus tachycardia is most common in 39%, VT in 12%, RBBB in 10%, VPC in 8%, LBBB in 2%, wide QRS in 5%, CHB in 4 %, AF in 2% SVT in 1% and sinus rhythm in 11. at 48hrs the sinus rhythm is resulted most commonly and sinus tachycardia in 15 patient out of 84 patient which is 12% Hence, on correlation arrythmia with duration is significant with p<0.05.
CONCLUSION: Malignant VA (serious or life threatening VA) particularly persistent VT or VF are common cause of death in AMI. Early revascularisation has improved overall prognosis but VA still occur due to reperfusion myocardial injury or no reflow. Early assessment in AMI can help clinicians to take active intervention and treatment measures which could result in better outcome of the patients.
• Regarding myocardial wall involvement with prognosis, Anterolateral wall was involved with poor prognosis with increased risk of VT and subsequent mortality.
Keywords:
Arrhythmias in patients with ST elevation Myocardial infarction in first 48 hours
Cite Article:
"Arrhythmias in patients with ST elevation Myocardial infarction in first 48 hours - A cross-sectional study", International Journal of Science & Engineering Development Research (www.ijrti.org), ISSN:2455-2631, Vol.9, Issue 10, page no.266 - 272, October-2024, Available :http://www.ijrti.org/papers/IJRTI2410028.pdf
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ISSN:
2456-3315 | IMPACT FACTOR: 8.14 Calculated By Google Scholar| ESTD YEAR: 2016
An International Scholarly Open Access Journal, Peer-Reviewed, Refereed Journal Impact Factor 8.14 Calculate by Google Scholar and Semantic Scholar | AI-Powered Research Tool, Multidisciplinary, Monthly, Multilanguage Journal Indexing in All Major Database & Metadata, Citation Generator