Most common arrhythmia after sinus tachycardia in ICU patient is –
Correct Answer: Atrial flutter
Description: Ans. is 'a' i.e., Atrial flutter Arryhthmias occuring afterMyocardial infarctionSupraventricular arrvhthmiasVentricular arryhthmiaso Atrial flutter or fibrillationo Ventricular premature beats (M.L)o Sinus bradycardiao Ventricular febrillationo Sinus tachycardia (M. C.) o Paroxysmal supraventricular tachycardia o Non Paroxysmal junctional tachycardia Supraventricular arryhthmias after M.Lo Most common supraventricular arrvhthmia after M.L is Sinus tachycardia.o Supraventricular arrvhthmiass. other than atrial fibrillation or flutter. are relatively uncommon in the periinfarction period.Atrialfibrillation after MI ranges from 5 to IS percent. The development ofAF is associated with a worse prognosis.Sinus bradycardia, defined as less than 50 to 60 beats/min, occurs in 15 to 25 percent of patients after acute MLSinus tachycardia occurs in approximately 30 to 40 percent of acute myocardial infarctions.Paroxysmal supraventricular tachycardia (PSVT) occurs in less than 10percent of patients after an acute MI, but may require aggressive management due to a rapid ventricular rate.Non paroxysm a i junctional tachycardia is typically transient, occuring within the first 48 hours of infarction and developing and terminating gradually. No specific antiarrhythmic therapy is indicated.Ventricular qrrythmias after MIo Infrequent sporodic ventricular premature depolarisation occur in almost all patient with M.I.o Ventricular arrhythmias, ranging from isolated ventricular premature beats (VPBs) to ventricular fibrillation (VF), are common in the immediate postinfarction period.In the era of early percutaneous coronary intervention and aggressive medical therapy, approximately 25 percent of patients with a non-ST elevation acute coronary syndrome experience ventricular tachycardia (IT) within the initial seven days, an event that protends a significantly greater risk of dying compared to patients without VT.o VF is the most frequent mechanism of.sudden cardiac death, with the majority of VF occuring within the first 48 to 72 hours after the onset of symptoms.o In patients with ST elevation myocardial infarction ('STEMI) treated with fibrinolysis, the incidence of sustained VT or VF is approximately 10 percent, with 80 to 85 percent occuring in the first 48 hours.
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