| The Hemodynamics and Electrocardiogram in Isolated Ventricular Septal Defect. |
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Kwang Man Kim, Ki Young Song, Sang Kwon Lee, Tae Chan Kwon, Chin Moo Kang |
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Department of Pediatrics, Keimyung University, School of Medicine，Taegu, Korea |
| 심실중격결손증의 혈역학 및
심전도소견에 관한 고찰 |
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김광만, 송기영, 이상권, 권태찬, 강진무 |
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계명대학교 의과대학 소아과학교실 |
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Received: 30 December 1988 • Accepted: 3 March 1989 |
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| Abstract |
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Ventricular septal defect is the most common cardiac malformation, accounting for 25% of
congenital heart disease.
The electrocardiogram is becoming more useful as a tool in estimating the size of the ventricular
septal defect and the type of pulmonary vascular response.
This report comprises 210 patients in whom the diagnosis of isolated ventricular septal defect was
made by cardiac catheterization and angiocardiography at Dong San Hospital, Keimyung University
during the period of 5 years and 6 months from Jan. 1982 to June 1987.
Following results were obtained.
Out of 210 patients, 128 were male and 82 were female. Their ages ranged from 4 months to 15
years.
Ventricular septal defect was classified according to Kirklin classification. The most common type
was type II (79%) followed by type I (18.6%).
The QRS axis were as follows in orders: normal axis (70.7%), right axis deviation (19.4%), and left
axis deviation (9.9%).
The large diphasic QRS complex in precordial lead V、was encountered in 43.1% of the cases.
When the R : S ratio in V was more than upper limit of normal, the right ventricular systolic
pressure was significantly higher than that of the R : S ratio less than lower limit of normal (p<0.
001).
When the R : S ratio in V6 was less than lower limit of normal, the right ventricular systolic
pressure was significantly higher than that of the R : S ratio more than upper limit of normal (p<0.
001).
When a normal electrocardiographic pattern was present, the right ventricular systolic pressure
was normal. When left ventricular hypertrophy pattern was present, the right ventricular systolic
pressure was moderately increased, but biventricular and right ventricular hypertrophy was present,
the right ventricular systolic pressure was markedly increased.
Between electrocardiographic pattern and right ventricular systolic pressure was statistically
significant (p< 0.001). |
| Key Words:
Electrocardiogram, Ventricular Septal Defect |
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