Ventricular septal defect electrocardiogram: Difference between revisions
(New page: {{SI}} {{CMG}} and Leida Perez, M.D. '''Associate Editor-in-Chief:''' Keri Shafer, M.D. [mailto:kshafer@bidmc.harvard.edu] {{EH}} ==Electrocardiogram== '''Small VS...) |
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==Electrocardiogram== | ==Electrocardiogram== | ||
'''Medium-sized VSD''': | The ECG changes reflect the size of shunt and degree of pulmonary hypertension | ||
'''Small VSD'''(restrictive VSD, Qρ/Qѕ < 1.5/1.0 Qρ/Qs is pressure gradient between pulmonary and systemic circulation): EKG is normal. A few patients will have an rsr' in V1. | |||
'''Medium-sized VSD''': | |||
* left atrial overload - broad notched P wave | |||
* Left ventricular overload - Deep 'Q' wave, tall 'R' wave, tall 'T' wave in lead V5 and V6 | |||
* Atrial fibrillation can also be seen | |||
'''Large VSD''': | |||
*In adults or adolescence with a large VSD and pulmonary vascular obstructive disease, LVH is absent because volume overload of the LV is no longer present. Large VSD will produce right ventricular hypertrophy with right axis deviation. At this point there is either an rsR' pattern in the right precordial leads, or more commonly, a tall monophasic R wave in the right precordial leads reflecting RVH. Also deep S waves in the lateral precordial leads and tall peaked P waves. | |||
In patients with an acquired infundibular stenosis, the EKG shows a pattern of RVH similar to the tracing of patients with tetralogy of Fallot. | In patients with an acquired infundibular stenosis, the EKG shows a pattern of RVH similar to the tracing of patients with tetralogy of Fallot. | ||
Revision as of 19:53, 7 July 2011
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] and Leida Perez, M.D.
Associate Editor-in-Chief: Keri Shafer, M.D. [2]
Please Take Over This Page and Apply to be Editor-In-Chief for this topic: There can be one or more than one Editor-In-Chief. You may also apply to be an Associate Editor-In-Chief of one of the subtopics below. Please mail us [3] to indicate your interest in serving either as an Editor-In-Chief of the entire topic or as an Associate Editor-In-Chief for a subtopic. Please be sure to attach your CV and or biographical sketch.
Electrocardiogram
The ECG changes reflect the size of shunt and degree of pulmonary hypertension
Small VSD(restrictive VSD, Qρ/Qѕ < 1.5/1.0 Qρ/Qs is pressure gradient between pulmonary and systemic circulation): EKG is normal. A few patients will have an rsr' in V1.
Medium-sized VSD:
- left atrial overload - broad notched P wave
- Left ventricular overload - Deep 'Q' wave, tall 'R' wave, tall 'T' wave in lead V5 and V6
- Atrial fibrillation can also be seen
Large VSD:
- In adults or adolescence with a large VSD and pulmonary vascular obstructive disease, LVH is absent because volume overload of the LV is no longer present. Large VSD will produce right ventricular hypertrophy with right axis deviation. At this point there is either an rsR' pattern in the right precordial leads, or more commonly, a tall monophasic R wave in the right precordial leads reflecting RVH. Also deep S waves in the lateral precordial leads and tall peaked P waves.
In patients with an acquired infundibular stenosis, the EKG shows a pattern of RVH similar to the tracing of patients with tetralogy of Fallot.