scholarly journals ASSOCIATION OF ST ELEVATION IN LEAD AVR WITH LEFT MAIN STEM AND TRIPLE VESSEL DISEASES IN PATIENTS WITH NON-ST ELEVATION MYOCARDIAL INFARCTION

2022 ◽  
Vol 54 (4) ◽  
pp. 348-351
Author(s):  
Hafiz Tahir Usman ◽  
Kashif Ali Hashmi ◽  
Mohammad Sohail Saleemi ◽  
Ammar Akhtar
Keyword(s):  
Myocardial Infarction ◽  
Negative Predictive Value ◽  
Predictive Value ◽  
Main Stem ◽  
St Elevation Myocardial Infarction ◽  
Left Main ◽  
Left Main Stem ◽  
Lead Avr ◽  
St Elevation ◽  
Sensitivity Specificity

Objectives: To determine frequency of left main stem (LMS) and triple vessel coronary artery disease (3VCAD) in patients of Non-ST-elevation myocardial infarction (NSTEMI) and to compare the frequency of LMS and 3VCAD in patients with NSTEMI with or without ST elevation in lead aVR. Methodology: Total 346 patients with NSTEMI having age 30-70 years were included in this descriptive cross-sectional study. The data on demographic details was collected. All patients underwent electrocardiography (ECG) and cardiac specific troponin-I assessment. Patients were categorized as NSTEMI with or without ST-elevation in lead aVR. Coronary angiography was performed in all patients and angiographic findings were noted. Results: Mean age of patients was 51.87±10.03 years. There were 218 (63.01%) males and 128 (36.99%) female patients. 182 (52.60%) patients of NSTEMI had ST elevation in aVR. LMS disease was found in 53 (29.10%) patients with ST elevation in aVR. Sensitivity, specificity, positive predive value and negative predictive value of ST elevation in aVR for LMS disease was 62.35%, 50.57%, 29.12% and 80.49% respectively. 3 VCAD was found in 54 (29.70%) with ST elevation in aVR. Sensitivity, specificity, positive predive value and negative predictive value of ST elevation in aVR for 3VCAD was 77.14%, 53.52%, 29.67% and 90.24% respectively. Conclusion: NSTEMI patients with ST elevation in aVR may have higher chances of having LMS disease or 3VCAD. There is high negative predictive value for ST elevation in aVR to predict LMS disease or 3VCAD.

scholarly journals Clinical Significance of ST Segment Depression in Lead aVR to Predict Culprit Artery in An Acute Inferior Wall Myocardial Infarction

2015 ◽  
Vol 12 (1) ◽  
pp. 5-9 ◽  
Author(s):  
Madhu Gupta ◽  
Maheswar Prasad Kurmi ◽  
Bhoj Raj Sharma ◽  
Liping Chen ◽  
Ravi Shahi ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Positive Predictive Value ◽  
Negative Predictive Value ◽  
Predictive Value ◽  
Inferior Wall ◽  
Circumflex Artery ◽  
Left Circumflex Artery ◽  
St Segment ◽  
Lead Avr ◽  
St Elevation

Background and Aims: The main objective of this study is to analyze between left circumflex artery and right coronary artery as a presumptive predictor of a culprit artery in patients with an acute inferior wall ST elevation myocardial infarction according to ST segment change in lead aVR. Methods: This study included 145 consecutive patients who presented with an inferior wall ST elevation myocardial infarction and underwent coronary angiography. Clinical and angiographic findings were compared between patients with and without aVR depression ≥ 0. 1mV. Results: The sensitivity and specificity of ST segment depression in lead aVR to predict left circumflex artery as the culprit artery were 69% and 85%, respectively, and the positive predictive value and negative predictive value to predict left circumflex artery as the culprit arteries were 66% and 87%, respectively. Conclusion: Our study supports, the presence of ST segment depression in lead aVR is associated with good specificity and negative predictive value and modest sensitivity and positive predictive value to determine left circumflex artery as an infarct related artery in an acute ST segment elevation inferior wall myocardial infarction.DOI: http://dx.doi.org/10.3126/njh.v12i1.12324 Nepalese Heart Journal Vol.12(1) 2015: 5-9  

VALUE OF ST-SEGMENT ELEVATION IN LEAD AVR IN PREDICTING LEFT MAIN AND OR 3-VESSEL DISEASE IN PATIENTS WITH ACUTE CORONARY SYNDROMES

2017 ◽  
pp. 59-63
Author(s):  
Thanh Hung Dieu ◽  
Anh Vu Nguyen
Keyword(s):  
Predictive Value ◽  
Acute Coronary Syndromes ◽  
Independent Predictor ◽  
Left Main ◽  
St Segment Elevation ◽  
Vessel Disease ◽  
St Segment ◽  
Coronary Syndromes ◽  
Lead Avr ◽  
Sensitivity Specificity

Objects: We assessed the ability of ST-segment elevation in lead aVR to predict left main and/or 3-vessel disease (LM/3VD) in patients with acute coronary syndromes (ACS). Meterial and Method: 410 patients with ACS, who underwent coronary angiography, were evaluated. Results: 131 (31.9%) patients have been LM/3VD. ST segment elevation > 0.05 mV in leads aVR have been an independent predictor LM/3VD with sensitivity, specificity, positive predictive value PPV) and negative predictive value (NPV) 74.0%, 78.1%, 61.4% and 86.5%, respectively (p<0.001). ST segment elevation > 0.05 mV in leads aVR with ST segment depression in leads V4-V6 have related LM/3VD with sensitivity, specificity, PPV and NPV 44.3%, 92.8%, 74.4% and 75.2%, respectively (p<0.001). ST segment elevation > 0.1 mV in leads aVR have related LM/3VD with sensitivity, specificity, PPV and NPV 51.9%, 87.1%, 65.1% and 79.4%, respectively (p<0.001). Conclusions: ST segment elevation > 0.05 mV in leads aVR have been an independent predictor LM/3VD in patients with ACS. Key words: Acute coronary syndromes, ST-segment elevation, aVR

CLINICAL CHARACTERISTICS AND OUTCOMES OF LEFT MAIN ST-ELEVATION MYOCARDIAL INFARCTION

2018 ◽  
Vol 71 (11) ◽  
pp. A1282
Author(s):  
Ameera Ahmed ◽  
Ross Garberich ◽  
Frank Aguirre ◽  
Jenny Chambers ◽  
Yader Sandoval ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Clinical Characteristics ◽  
St Elevation Myocardial Infarction ◽  
Left Main ◽  
St Elevation

Predictive value of Q waves on the 12-lead electrocardiogram after reperfusion therapy for ST elevation myocardial infarction

2009 ◽  
Vol 42 (4) ◽  
pp. 310-318 ◽  
Author(s):  
Pieter A. van der Vleuten ◽  
Mathijs Vogelzang ◽  
Tone Svilaas ◽  
Iwan C.C. van der Horst ◽  
René A. Tio ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Predictive Value ◽  
Reperfusion Therapy ◽  
St Elevation Myocardial Infarction ◽  
St Elevation
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