| Author/Editor | Geršak, Borut | |
| Title | ECG changes after partial left ventriculectomy | |
| Type | članek | |
| Source | In: Pajer Z, Štiblar-Martinčič D, editors. International symposium on cardiovascular diseases. Proceedings of the 29th memorial meeting devoted to prof. dr. Janez Plečnik; 1998 Dec 3-5; Ljubljana. Ljubljana: Medical faculty, Institute of histology and embryology, | |
| Publication year | 1998 | |
| Volume | str. 343-50 | |
| Language | eng | |
| Abstract | To demonstrate cardiac electrophysiologic changes in patients where partial left ventriculectomy (PLV) was performed multichannel ECG (MECG) measurements were used. PLV was originally introduced two years ago as a new and revolutionary surgical approach how to treat patients with an end stage of cardiac disease. MECG measurements were performed simultaneously using two different electrode positioning protocols (from 35 (L-protocol) and 31 (E-protocol) measuring points on the front of the chest respectively) giving the possibillity to study the ECG changes in two different ways: first with the classic 12 channeled ECG and second with the Body Surface Potential Mapping (BSPM). Eleven patients were operated in Brasil as described previously. The same electrode positions were used for special software in addition to MECG software was used to show and also calculate ECG signals from different parts of the chest, including all standard 12 channels from the classic ECG. The BSP maps were generated from a single beat as described previously. All the ST40ms isointegral maps of the patients which were candidates for PLV are showing the great positivity (ST elevation) over anterior aspect of the heart and great negativity (STdepression) over the lateral and posterior aspect of the heart before the operation. All these patients had normal coronary angiography data. After the operation there is a normalization of ST elevation over the anterior, lateral and posterior aspect of the heart, leaving the great positivity over the excised area of the heart. We believe with the BSPM system as described here we are able to see the striking differences in the ECG and impulse propagation in the patients where PLV was performed.(Abstract truncated at 2000 characters) | |
| Descriptors | HEART VENTRICLE ELECTROCARDIOGRAPHY BODY SURFACE POTENTIAL MAPPING ARRHYTHMIA |