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- Regular narrow complex tachycardia+Normal baseline ECG - most common mechanism AVNRT
- During external cardioversion of AFib, inadequate synchronisation may occur with peaked T waves, low-amplitude signal, and malfunctioning pacemakers
- Because of the normal variability in O2 saturation, shunts with pulmonary-to-systemic ow ratios (Q p/Qs) ≤1.3 at level of pulmonary artery or right ventricle may escape detection by oximetry run analyses
- Asymptomatic with good functional capacity, bicuspid aortic valve, AR 3 to 4+, normal EF with mildly dilated LV - yearly risk of sudden death <1%
- In patients with PVCs, there is beat-to-beat variation in intensity of AS murmur while intensity of MR remains constant
- Asthma(bronchospasm), diarrhoea, hepatomegaly, ascites, peripheral edema, diastolic murmur along sternal border which increases with inspiration (TS) - Carcinoid
- AV dissociation is helpful in differentiating SVT from VT in a patient presenting with wide complex tachycardia
- Diastolic flow reversal in descending thoracic aorta suggests that aortic regurgitation is severe
- AFib immediate after maze procedure is due to shortening of atrial refractory period because of surgical manipulation
- In patients with PVCs, there is beat-to-beat variation in intensity of AS murmur while intensity of MR remains constant