Documenting junctional ectopic tachycardia following pediatric open heart surgery.

OBJECTIVE: To determine appropriated documentations for diagnosis junctional ectopic tachycardia (JET) before treatment in post-operative open heart surgery and identify risk factors for post-operative cardiac arrhythmias in children. MATERIAL AND METHOD: The authors performed a retrospective chart review in 277 patients who underwent surgical corrections at British Columbia's Children Hospital from January 1st, 2000 to December 31st, 2001. History, clinical symptoms, complication of surgery and post-operative cardiac arrhythmias were reviewed from medical records. The authors investigated whether JET was being diagnosed accurately and whether it was being adequately documented prior to the initiation of therapy. The authors also identified risk factors that were associated with JET. All documentations before treatment were reviewed by Pediatric cardiologists to confirm diagnosis. RESULTS: Although the diagnostic accuracy (84%), sensitivity (87%), and specificity (84%) are high, a significant number of patients with post-operative arrhythmias were treated without adequate documentation of the arrhythmia. The documentation of arrhythmias in the Intensive Care Unit was largely limited to rhythm strips, with very few 12-lead ECGs and wire studies performed to assist with the diagnosis. CONCLUSION: The presented data indicates that, in this critically-ill population, there was an unacceptable number of patients with post-operative arrhythmias who may have been treated inappropriately. It is very important to emphasize the interpretation of wire studies, an investigation normally done in a critical care setting and whose interpretation is very important to the accurate diagnosis of pediatric arrhythmias.

Sensitivity of clinical assessment in term neonates by general pediatric residents.

OBJECTIVES: To determine the accuracy of physical examination in detecting congenital heart diseases by pediatric residents and identify risk factors of congenital heart diseases. MATERIAL AND METHOD: Five hundred term infants (GA > or = 37wks) who were born at Phramongkutklao Hospital from July 1st, 1999 to June 3th, 2000 were examined by pediatric residents and pediatric cardiologists within the first week of life. The echocardiography was performed in all 500 infants for definite diagnosis. The accuracy of physical examination was determined by comparing with echocardiographic finding and presented as sensitivity and specificity. RESULTS: Congenital heart diseases were found in 18 of 500 term infants (3.6%). The physical examination by pediatric residents and pediatric cardiologists showeds a sensitivity of 39% and 94% and the specificity of 98% and 97%, respectively. After excluding spontaneously closed PDA within 2 weeks, the first and second most common congenital heart diseases in infants were Ventricular septum defect (VSD) (44%) and Patent ductus arteriosus (PDA) (33%). The positive other cardiovascular signs, such as cyanosis or abnormal pulses with heart murmur were significantly associated to diagnosis of congenital heart diseases. CONCLUSION: Although echocardiography is the major tool to determine the definite diagnosis, most congenital heart diseases can be well detected during physical examination by skilled physicians. As a result, the value of physical examination of the cardiovascular system should be emphasized in training general pediatricians concerning lower costs and early detection of congenital heart diseases.