Tak-cheung Yung

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OBJECTIVES We determined the profile of cardiovascular risk factors in children late after Kawasaki disease (KD) and compared it with that of age-matched healthy children. BACKGROUND Concerns have been raised regarding the possibility of a predisposition of KD to premature atherosclerosis later in life. METHODS A cohort of 102 subjects were studied: 37(More)
BACKGROUND The conduction system in right atrial isomerism may be complicated by the presence of paired sinus nodes and twin atrioventricular nodes. With a large cohort of infants and children with right atrial isomerism, we sought to investigate the nature of atrial rhythm, its prevalence, factors predisposing patients to symptomatic cardiac arrhythmia,(More)
Systemic arterial stiffness is increased in patients after Kawasaki disease (KD). Recently, associations between mannose-binding lectin (MBL) gene mutation and coronary complications in infants with KD and atherosclerosis in adults have been reported. We tested the hypothesis that MBL genotype modulates arterial stiffness in children after KD. Seventy-one(More)
BACKGROUND Previous reports on the long-term outcome of surgical closure of subarterial ventricular septal defect were based on a relatively small number of patients. METHODS We reviewed the long-term outcome of 135 patients who underwent closure of their defect and, in light of the findings, assessed the impact of preoperative aortic cusp prolapse and(More)
We describe the clinical and pathologic findings in three cases of cystic dysplasia of the testis and compare our findings to others in the English literature. The condition is characterized by dilatation of the rete testis with or without similarly affected adjacent structures. It is important to recognize this lesion for two reasons. First, it is(More)
The identification of patients with obstructive sleep apnea (OSA) is important because of morbidities associated with OSA. A previous adult study demonstrated the use of heart rate variability (HRV) as a tool to identify patients with moderate to severe OSA. Either a reduction in time parameters or an increase in LF/HF ratio was seen at overnight or 24-hr(More)
Eighteen adult patients with atrial tachycardia refractory to treatment with a mean of four drugs underwent attempted surgical cure. Atrial tachycardia originated in the right atrium in 17 patients and the left atrium in 1 patient. Tachycardia could be reproducibly induced and terminated by atrial extrastimuli or atrial pacing in 8 patients (44%). Resection(More)
OBJECTIVE Left ventricular noncompaction (LVNC) is an uncommon type of cardiomyopathy in children. We sought to determine the clinical presentations and outcomes of children diagnosed to have LVNC. DESIGN The case records of children diagnosed to have LVNC between 1999 and 2007 were reviewed. The diagnosis was based on echocardiographic finding of a thick(More)
Reported is the successful treatment of a 2-month-old boy with multiple inflammatory myofibroblastic tumors in the right ventricle protruding into the right atrium through the tricuspid annulus. The patient underwent subtotal excision on cardiopulmonary bypass with no intraoperative or postoperative complications. Cardiac inflammatory myofibroblastic tumors(More)
The aim of this study was to determine the effect of long-term right ventricular pacing on left ventricular (LV) mechanical dyssynchrony in children and young adults with congenital and acquired heart block. Eighteen patients aged 19 +/- 7 years with congenital heart block (group I), 9 aged 21 +/- 11 years with acquired heart block after congenital heart(More)