<s>[INST] my 15 year old daughter had a ECG. Results are sinus rhythm/RAD left atrial abnormality and incomplete right bundle branch block. She is scheduled for an echo in a few days. She had the ECG due to palpitations, a murmur and to rule out Marfans. She is tall, thin and has 40 degree scoliosis. Does the ECG results give a clue as to what is going on? Thank you [/INST] Hi,This is Dr Sameer.Right bundle branch in a child with murmer could be a septum defect (hole in heart) with associated pulmonary hypertension. Detailed diagnosis could be made only after the echo report. So wait for its report.Thanks </s>