Fragmented Left Sided QRS in Absence of Bundle Branch Block: Sign of Left Ventricular Aneurysm
Background: A left ventricular aneurysm (LVA) occurs between 3.5% and 9.4% of all cases of acute myocardial infarction. A fragmented left sided QRS (RSR` pattern or its variant RSr`, rSR`, or rSr`) without evidence of bundle branch block (QRS duration ≤120 ms) on the ECG may be associated with a sig...
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| Format: | Article |
| Language: | English |
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Wiley
2006-04-01
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| Series: | Annals of Noninvasive Electrocardiology |
| Subjects: | |
| Online Access: | https://doi.org/10.1111/j.1542-474X.2006.00094.x |
| _version_ | 1823933002313367552 |
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| author | Chatla V. R. Reddy Kuruvilla Cheriparambill Barry Saul Majesh Makan John Kassotis Awaneesh Kumar Mithilesh Kumar Das |
| author_facet | Chatla V. R. Reddy Kuruvilla Cheriparambill Barry Saul Majesh Makan John Kassotis Awaneesh Kumar Mithilesh Kumar Das |
| author_sort | Chatla V. R. Reddy |
| collection | DOAJ |
| description | Background: A left ventricular aneurysm (LVA) occurs between 3.5% and 9.4% of all cases of acute myocardial infarction. A fragmented left sided QRS (RSR` pattern or its variant RSr`, rSR`, or rSr`) without evidence of bundle branch block (QRS duration ≤120 ms) on the ECG may be associated with a significant myocardial scar, which is the characteristic of a LVA. We, therefore, postulate that fragmented QRS (RSR` pattern or its variant) in the left sided leads (I, aVL, V3 to V6) may be a useful sign of LVA. Methods: ECGs of 110 consecutive patients with LVA documented by left ventricular angiography (30° right anterior oblique view) was compared with 220 patients without LVA (110 patients with and 110 patients without coronary artery disease (CAD)), who were evaluated for CAD by symptoms and signs. Results: The sensitivity of the fragmented QRS for identification of LVA was 50% (55 of 110 patients) and specificity was 94.6% (209 of 220). Within the study population, the positive predictive value of the fragmented QRS for LVA was 83.3% (55 of 66) and the negative predictive value was 79.2% (209 of 264). Based on the range of prevalence of LVA in postmyocardial infarction population (3.5–9.4%) and on observed sensitivity and specificity, the positive predictive value of fragmented QRS for LVA after infarction can be estimated at 29–53% and the negative predictive value can be estimated at 95–98%. Conclusion: The sensitivity of fragmented QRS in left precordial leads for LVA was only 50%, whereas the specificity was 94.5%. It has a relatively low to moderate positive predictive value and high negative predictive value. |
| first_indexed | 2024-12-16T22:00:12Z |
| format | Article |
| id | doaj.art-0733a30dafe947819dcaabaf9f90f3c6 |
| institution | Directory Open Access Journal |
| issn | 1082-720X 1542-474X |
| language | English |
| last_indexed | 2024-12-16T22:00:12Z |
| publishDate | 2006-04-01 |
| publisher | Wiley |
| record_format | Article |
| series | Annals of Noninvasive Electrocardiology |
| spelling | doaj.art-0733a30dafe947819dcaabaf9f90f3c62022-12-21T22:14:37ZengWileyAnnals of Noninvasive Electrocardiology1082-720X1542-474X2006-04-0111213213810.1111/j.1542-474X.2006.00094.xFragmented Left Sided QRS in Absence of Bundle Branch Block: Sign of Left Ventricular AneurysmChatla V. R. Reddy0Kuruvilla Cheriparambill1Barry Saul2Majesh Makan3John Kassotis4Awaneesh Kumar5Mithilesh Kumar Das6New York Methodist Hospital, New YorkNew York Methodist Hospital, New YorkNew York Methodist Hospital, New YorkWashington University, St. LouisNew York Methodist Hospital, New YorkKrannert Institute of Cardiology, IndianapolisKrannert Institute of Cardiology, IndianapolisBackground: A left ventricular aneurysm (LVA) occurs between 3.5% and 9.4% of all cases of acute myocardial infarction. A fragmented left sided QRS (RSR` pattern or its variant RSr`, rSR`, or rSr`) without evidence of bundle branch block (QRS duration ≤120 ms) on the ECG may be associated with a significant myocardial scar, which is the characteristic of a LVA. We, therefore, postulate that fragmented QRS (RSR` pattern or its variant) in the left sided leads (I, aVL, V3 to V6) may be a useful sign of LVA. Methods: ECGs of 110 consecutive patients with LVA documented by left ventricular angiography (30° right anterior oblique view) was compared with 220 patients without LVA (110 patients with and 110 patients without coronary artery disease (CAD)), who were evaluated for CAD by symptoms and signs. Results: The sensitivity of the fragmented QRS for identification of LVA was 50% (55 of 110 patients) and specificity was 94.6% (209 of 220). Within the study population, the positive predictive value of the fragmented QRS for LVA was 83.3% (55 of 66) and the negative predictive value was 79.2% (209 of 264). Based on the range of prevalence of LVA in postmyocardial infarction population (3.5–9.4%) and on observed sensitivity and specificity, the positive predictive value of fragmented QRS for LVA after infarction can be estimated at 29–53% and the negative predictive value can be estimated at 95–98%. Conclusion: The sensitivity of fragmented QRS in left precordial leads for LVA was only 50%, whereas the specificity was 94.5%. It has a relatively low to moderate positive predictive value and high negative predictive value.https://doi.org/10.1111/j.1542-474X.2006.00094.xleft ventricular aneurysmfragmented QRS |
| spellingShingle | Chatla V. R. Reddy Kuruvilla Cheriparambill Barry Saul Majesh Makan John Kassotis Awaneesh Kumar Mithilesh Kumar Das Fragmented Left Sided QRS in Absence of Bundle Branch Block: Sign of Left Ventricular Aneurysm Annals of Noninvasive Electrocardiology left ventricular aneurysm fragmented QRS |
| title | Fragmented Left Sided QRS in Absence of Bundle Branch Block: Sign of Left Ventricular Aneurysm |
| title_full | Fragmented Left Sided QRS in Absence of Bundle Branch Block: Sign of Left Ventricular Aneurysm |
| title_fullStr | Fragmented Left Sided QRS in Absence of Bundle Branch Block: Sign of Left Ventricular Aneurysm |
| title_full_unstemmed | Fragmented Left Sided QRS in Absence of Bundle Branch Block: Sign of Left Ventricular Aneurysm |
| title_short | Fragmented Left Sided QRS in Absence of Bundle Branch Block: Sign of Left Ventricular Aneurysm |
| title_sort | fragmented left sided qrs in absence of bundle branch block sign of left ventricular aneurysm |
| topic | left ventricular aneurysm fragmented QRS |
| url | https://doi.org/10.1111/j.1542-474X.2006.00094.x |
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