scholarly journals Correlation of Severity of ST Segment Elevation with Respect to the Site of Right Coronary Artery Lesion

2013 ◽  
Vol 52 (191) ◽  
Author(s):  
Rabindra Simkhada
Keyword(s):  
Myocardial Infarction ◽  
Coronary Artery ◽  
Inferior Wall ◽  
St Segment Elevation ◽  
St Segment ◽  
Infarct Related Artery ◽  
St Elevation ◽  
The Mean ◽  
St Segments ◽  
Lesion Severity

Introduction: Electrocardiogram a widely available tool may predict infarct related artery in acute inferior wall myocardial infarction. Severity of ST segment elevation may correlate with proximity of lesion in right coronary artery.Methods: Patient with acute ST segment elevation inferior wall myocardial infarction who underwent coronary angiogram was studied. Differences in electrocardiogram among right coronary and left circumflex groups were evaluated. Severity of ST segments elevation in relation to site of lesion in right coronary was studied.Results: The mean age of presentation was 59.52 ± 11.01 years. Total 36 (72%) were men. A total of 42 (84%) had lesion in right and 8 (16%) in left circumflex. Age, sex,diabetes,hypertension, smoking, dyslipidemia and physical activity showed no correlation with lesion in right or circumflex coronary artery. ST segment elevation in III>II (P=0.01), ST segment depression in AVL> I (P<0.01) and ST elevation in V4R (P=0.04), correlated with right coronary lesion. Sum of ST elevation in inferior leads were 10.90 ±1.30 mm for proximal, 7.38±1.19 mm for mid and 5.50± 0.53 mm for distal right coronary with significant correlation (P<0.01).Conclusions: Electrocardiogram was reliable tool to difference right and left circumflex lesion. Severity of sum of ST segment elevations in inferior leads correlated with the proximity of lesion in right coronary._______________________________________________________________________________________Keywords: acute inferior myocardial infarction; electrocardiogram; infarct related artery._______________________________________________________________________________________

scholarly journals Correlation of ECG Changes with Coronary Angiographic Findings in Acute Inferior Myocardial Infarction

2017 ◽  
Vol 29 (2) ◽  
pp. 33-37 ◽  
Author(s):  
Kazi Shamim Al Mamun ◽  
Anisul Awal ◽  
AKM Manzur Murshed
Keyword(s):  
Myocardial Infarction ◽  
Coronary Artery ◽  
Right Coronary Artery ◽  
Inferior Myocardial Infarction ◽  
Significant Stenosis ◽  
St Segment Elevation ◽  
St Segment ◽  
Infarct Related Artery ◽  
St Elevation ◽  
Acute Inferior Myocardial Infarction

The determination of infarct related artery in acute inferior myocardial infarction is extremely important for the prediction the amount of myocardium at risk and guide decisions regarding urgency of revascularization. Urgent decision may facilitate management and prevention of complication. Our objective was to Identification of the infarct related artery involving either right coronary artery (RCA) or left circumflex artery (LCX) in acute inferior wall myocardial infarction using electrocardiographic criteria and comparing with angiographic finding. This prospective, observational study was done in Chittagong Medical College Hospital from June 2013 to May 2014. A total of 112 Patients with acute inferior myocardial infarction were included in this study. The electrocardiogram of these patients evaluated for ST segment elevation in lead III exceeding that in lead II (i.e. a ratio of ST elevation in lead III/elevation in lead II > 1) and S/R wave ratio > 0.33 plus ST segment depression > 1 mm in lead aVL as a prediction for right coronary artery occlusion. If criteria are negative, LCX obstruction is likely. Coronary angiogram was done within 2-6 weeks in cath lab, department of cardiology, CMCH to identify the culprit artery. The infarct related artery (IRA) was identified from total occlusion or significant stenosis (> 70%) of the RCA or LCX or their major branches, or from arteriographic evidence of intraluminal thrombosis. To minimize the chance of misclassifying the culprit artery, patients with significant stenosis of both the RCA and the LCX were excluded from the study. The study population consisted of 112 patients (94 male and 18 female) with a mean ± SD age of 51 ± 8.6 years. On coronary angiography, the culprit artery was shown to be the RCA in 92 patients and the LCX in 20 patients. It was evident that the degree of ST segment elevation in lead III was significantly higher in right coronary artery group (92 patients) vs left circumflex group (20 patients) 3.16±1.14mm vs 1.35±0.24mm (p<0.001) respectively. While its comparable in lead II 2.18±0.95mm vs 1.7±0.34mm (p>0.05). In respect to leads AVL, we found that deeper ST segment depression was in right coronary artery group as compared to left circumflex group 1.11±0.25mm vs 0.2 ±0.34mm (p<0.001). ECG parameters for implicating the RCA were a higher ST elevation in lead III than lead II (specificity 98%, sensitivity 97%) and an S/R wave ratio > 0.33 plus ST segment depression > 1 mm in lead aVL (specificity 96%, sensitivity 95%). Absence of these criteria was associated with LCX occlusion (specificity 100%, sensitivity 85%). It is possible to predict the culprit artery whether right coronary artery or left circumflex by examining the surface electrocardiography in patients with acute inferior myocardial infarction.Medicine Today 2017 Vol.29(2): 33-37

scholarly journals Role of electrocardiogram in identifying the infarct related artery in acute myocardial infarction and to correlate it with 2D echo and coronary angiogram

2020 ◽  
Vol 7 (3) ◽  
pp. 451
Author(s):  
Jacob Abraham Ruram ◽  
Rami Reddy Ganta ◽  
P. Arunachalam
Keyword(s):  
Myocardial Infarction ◽  
Acute Myocardial Infarction ◽  
Artery Occlusion ◽  
Inferior Wall ◽  
St Segment Elevation ◽  
St Segment ◽  
Infarct Related Artery ◽  
St Elevation ◽  
Sensitivity Specificity

Background: The Electrocardiogram remains a crucial tool in the identification and management of acute myocardial infarction. A detailed analysis of patterns of ST segment elevation may influence decisions regarding the perfusion therapy. This study was undertaken to study the role of ECG in identifying the infarct related artery in acute ST elevation MI and to correlate its findings with 2 D ECHO and Coronary angiogram.Methods: A total of 100 patients who presented with acute ST elevation MI were randomly selected for the study. After admission all the patients underwent ECG, CPK, CK-MB levels, 2D ECHO and CAG. Patients with ST segment elevation from ECG was evaluated to identify culprit vessel and the ECG findings were then correlated with 2D ECHO and CAG to identify the Sensitivity, Specificity, Positive predictive value and Negative predictive value of ECG in identifying the infarct related artery.Results: Fifty-two (52%) patients had an Anterior wall MI, forty-two patients (42%) had an evidence of Inferior wall MI and Six patients (6%) were found to have Antero inferior wall MI in the study group. Thirty-eight (38%) had evidence of SVD, forty-six patients (46%) had DVD and Sixteen patients (16%) had TVD. Sensitivity, Specificity, PPV and NPV of the ECG in identifying the LAD artery occlusion were 60.5%, 100%, 100% and 44.4% respectively. Sensitivity, Specificity, PPV and NPV of ECG in identifying the RCA artery occlusion were 78.5%, 100%, 100% and 78.5% respectively. Sensitivity, Specificity, PPV and NPV of the ECG in identifying the LCx artery occlusion were 26%, 96%, 86% and 60% respectively.Conclusions: ECG was found to be a sensitive and specific tool in identifying the infarct related Coronary artery in acute ST elevation MI.

scholarly journals Electrocardiographic localization of infarct related coronary artery in acute inferior wall ST elevation myocardial infraction and in hospital outcome in tertiary cardiac care center

2018 ◽  
Vol 15 (1) ◽  
pp. 23-27
Author(s):  
Rajaram Khanal ◽  
Arun Sayami ◽  
Ratnamani Gajurel ◽  
Hemanta Shrestha ◽  
Sanjeev Thapa ◽  
...  
Keyword(s):  
Coronary Artery ◽  
Hospital Mortality ◽  
Care Center ◽  
Inferior Wall ◽  
Circumflex Artery ◽  
Left Circumflex Artery ◽  
St Segment ◽  
Myocardial Infraction ◽  
Infarct Related Artery ◽  
St Elevation

Background: In addition to diagnosing the acute ST Elevation MI stratifying (STEMI) high-risk patients and proper treatment strategies are important issues in managing patients. The goal of this study was to determine the relation of ST segment changes in Electrocardigram with the site of occlusion in vessel , to evaluate the prognostic value of ST segment deviation in aVR and its role in identification of Infarct Related Artery (IRA) in patients with acute inferior myocardial infarction.Methods: The study included 56 patients with acute inferior wall STEMI. All patients underwent Coronary Angiogram. Patients were divided into two groups based on the IRA and were followed up during their hospital stay for complications.Result: The culprit artery was Right Coronary Artery (RCA) in 40 patients (71.4%) and Left Circumflex Artery (LCX) in 13 patients (23.2%). Study showed 92% sensitivity, 80% specificity for predicting RCA related infarction with ST elevation lead III > lead II and 83% sensitivity ,90% specificity for (LCX) with ST elevation lead II > lead III . The overall in-hospital mortality was 3.5%.ST depression in aVR was associated with 87.5% specificity and 83% sensitivity in diagnosing LCX as the Infarct Related Artery (IRA). The in-hospital mortality rates for patients with ST segment deviation in aVR (20 patients) and no ST segment changes (36 patients) were 5% and 2.7% respectively.Conclusion: In addition to the conventional ECG criteria for identifying culprit vessel, lead aVR may be useful in clinical practice when assessing patients with inferior STEMI and with poor in-hospital outcome.Nepalese Heart Journal 2018; 15(1): 23-27

scholarly journals Microfistulas Causing Diverse Regional Ischemia: Consecutive Inferior and Lateral ST-Elevation Myocardial Infarction

2020 ◽  
Vol 23 (10) ◽  
pp. 704-706
Author(s):  
Tufan Çınar ◽  
Yavuz Karabağ ◽  
İbrahim Rencuzogullari ◽  
Metin Cağdaş
Keyword(s):  
Myocardial Infarction ◽  
Coronary Artery ◽  
St Elevation Myocardial Infarction ◽  
Type I ◽  
St Segment Elevation ◽  
St Segment ◽  
Coronary Artery Fistulas ◽  
Clinical Consequences ◽  
Electrocardiographic Changes ◽  
St Elevation

Coronary artery fistulas (CAFs) are described as abnormal communications between a coronary artery and cardiac chambers, or other vascular structures. The two types of CAFs are defined as type I (singular fistula) and type II (microfistulas). Even though various electrocardiographic changes have been previously described in CAF patients, coronary-artery microfistulas causing ST-segment elevation in diverse locations have not been reported. We describe a case report of an adult patient who presented with acute inferior myocardial infarction due to coronary-artery microfistulas. During the hospital stay, the patient re-experienced chest pain, and control electrocardiography revealed ST-segment elevation in the I and AVL leads along with reciprocal ST-segment depression in the inferior precordial leads. Although CAFs are clinically rare, they can have important clinical consequences. Microfistulas should be kept in mind as a cause of ST elevation myocardial infarction in some patients.

Association of Body Mass Index with Angiographic Severity of Coronary Artery Disease in Patients with Acute ST- Segment Elevation Myocardial Infarction

2017 ◽  
Vol 10 (1) ◽  
pp. 68-73
Author(s):  
Khondker Rafiquzzaman ◽  
Mahboob Ali ◽  
Md Toufiqur Rahman ◽  
Nur Alam ◽  
Muhammad Azmol Hossain ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Coronary Artery Disease ◽  
Body Mass Index ◽  
Coronary Artery ◽  
Body Mass ◽  
St Segment Elevation ◽  
Segment Elevation Myocardial Infarction ◽  
St Segment ◽  
The Mean ◽  
Artery Disease

Background: This study evaluated the association of body mass index (BMI) and angiographic severity of coronary artery disease in patients with acute ST segment elevation myocardial infarction (STEMI).Methods: Data were analyzed from 100 acute STEMI patients who underwent coronary angiogram. The patients were grouped based on BMI; those with normal BMI, 18.5- 24.9 kg/m2 (group I) and those with increased BMI, >25 kg/m2 (group II). Each group contained 50 patients. Angiographic severity of the three groups was compared and the relation between BMI and angiographic severity was assessed.Results: The mean BMI of subjects with normal angiographic findings was 20.81 ± 1.03 kg/m2. The mean BMI of single, double and triple vessel disease were 23.85 ± 2.24, 24.25 ± 2.41 and 32.06 ± 7.86 kg/m2 respectively. The number of vessel involvement increased in proportion with increased BMI and the differences were statistically significant (p=0.001).Conclusion: Increased BMI is associated with angiographic severity of coronary artery disease in patients with acute ST-segment elevation myocardial infarction.Cardiovasc. j. 2017; 10(1): 68-73

scholarly journals Association of Factor II G20210A, Factor V G1691A and methylenetetrahydrofolate reductase C677T gene polymorphism with different forms of myocardial infarction: ST segment elevation and non-ST segment elevation

2020 ◽  
Vol 77 (10) ◽  
pp. 1041-1047
Author(s):  
Milica Cucuz-Jokic ◽  
Vesna Ilic ◽  
Bojana Cikota-Aleksic ◽  
Slobodan Obradovic ◽  
Zvonko Magic
Keyword(s):  
Myocardial Infarction ◽  
Coronary Artery ◽  
Methylenetetrahydrofolate Reductase ◽  
Mthfr C677t ◽  
Factor V ◽  
St Segment Elevation ◽  
St Segment ◽  
Factor Ii ◽  
Factor V G1691a ◽  
St Elevation

Background/Aim. Coagulation Factor II G20210A and Factor V G1691A variants are moderately associated with coronary artery disease. Polymorphism of methylenetetrahydrofolate reductase (MTHFR) gene C677T is associated with myocardial infarction (MI) in some ethnical groups. At the present time there are rare studies which try to differentiate two forms of MI, ST-elevation MI (STEMI) and non ST-elevation MI (NSTEMI) according to the genetic background. The aim of the study was investigate the association of polymorphisms of Factor II G20210A, Factor V G1691A and MTHFR C677T with different forms of MI: STEMI and NSTEMI. Methods. The study included 82 patients, divided into two cohorts: patients with STEMI (49 patients) and NSTEMI (33 patients). Genetic factors that would be different in those two entities, included in response to plaque rupture and occlusion of coronary artery, were examined. The peripheral blood lymphocytes were used as DNA source. Genotypes were determined on the polymerase chain reaction (PCR) based methodology. Results. The frequency of MTHFR C677T CT genotype was higher in the patients with NSTEMI in comparison with the patients with STEMI [odds ratio (OR) 3.33; 95% confidence interval (CI) 1.22?9.15; p = 0.02]. Logistic regression analysis shows MTHFR CT genotype as an independent prognostic factor for development of NSTEMI (OR 3.15; 95% CI 1.20?8.29; p = 0.02). There were no differences between two patients groups in frequency of Factor II G20210A and Factor V G1691A gene polymorphism. Conclusion. MTHFR C677T CT genotype was significantly associated with the NSTEMI development examined patients.

scholarly journals Impact of COVID-19 outbreak on regional STEMI care in Germany

2020 ◽  
Vol 109 (12) ◽  
pp. 1511-1521 ◽  
Author(s):  
Karl Heinrich Scholz ◽  
Björn Lengenfelder ◽  
Christian Thilo ◽  
Andreas Jeron ◽  
Stefan Stefanow ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Quality Indicators ◽  
Clinical Trial Registration ◽  
St Segment Elevation ◽  
Catheterization Laboratory ◽  
St Segment ◽  
Significant Difference ◽  
St Elevation ◽  
The Mean ◽  
The Impact

Abstract Aims To assess the impact of the lockdown due to coronavirus disease 2019 (COVID-19) on key quality indicators for the treatment of ST-segment elevation myocardial infarction (STEMI) patients. Methods Data were obtained from 41 hospitals participating in the prospective Feedback Intervention and Treatment Times in ST-Elevation Myocardial Infarction (FITT-STEMI) study, including 15,800 patients treated for acute STEMI from January 2017 to the end of March 2020. Results There was a 12.6% decrease in the total number of STEMI patients treated at the peak of the pandemic in March 2020 as compared to the mean number treated in the March months of the preceding years. This was accompanied by a significant difference among the modes of admission to hospitals (p = 0.017) with a particular decline in intra-hospital infarctions and transfer patients from other hospitals, while the proportion of patients transported by emergency medical service (EMS) remained stable. In EMS-transported patients, predefined quality indicators, such as percentages of pre-hospital ECGs (both 97%, 95% CI = − 2.2–2.7, p = 0.846), direct transports from the scene to the catheterization laboratory bypassing the emergency department (68% vs. 66%, 95% CI = − 4.9–7.9, p = 0.641), and contact-to-balloon-times of less than or equal to 90 min (58.3% vs. 57.8%, 95%CI = − 6.2–7.2, p = 0.879) were not significantly altered during the COVID-19 crisis, as was in-hospital mortality (9.2% vs. 8.5%, 95% CI = − 3.2–4.5, p = 0.739). Conclusions Clinically important indicators for STEMI management were unaffected at the peak of COVID-19, suggesting that the pre-existing logistic structure in the regional STEMI networks preserved high-quality standards even when challenged by a threatening pandemic. Clinical trial registration NCT00794001

scholarly journals Profil lipid pada wanita dengan sindrom koroner akut

2016 ◽  
Vol 8 (2) ◽  
Author(s):  
Ronaldi . ◽  
Ike Adriana ◽  
Monique Rotty ◽  
Reginald L. Lefrandt ◽  
Agnes L. Panda
Keyword(s):  
Myocardial Infarction ◽  
High Density Lipoprotein ◽  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
Low Density ◽  
St Segment Elevation ◽  
Segment Elevation Myocardial Infarction ◽  
St Segment ◽  
St Elevation ◽  
The Mean

Abstract: Females with acute coronary syndrome (ACS) display different characteristics from the opposite gender. Currently, only limited data were available regarding the characteristic of ACS in females, especially in Manado. This study aimed to obtain the lipid profile of females with ACS at Prof. Dr. R. D. Kandou Hospital Manado in 2012-2013. This was a descriptive retrospective study with a cross sectional design. Subjects were all female patients with ACS who were admitted to Prof. Dr. R. D. Kandou Hospital Manado from January 2012 to December 2013. Data were collected based on the medical record. Exclusion criteria included incomplete data and non-ACS as the main diagnosis. There were 81 women as subjects in this study. The mean age was 61.59±10.78 years. Unstable angina pectoris, non-ST elevation myocardial infarction, ST elevation myocardial infarction were found in 38 (46.9%), 15 (18.5%), and 28 (34.6%) patients consecutively. Mean value of total cholesterol, low density lipoprotein (LDL), high density lipoprotein (HDL), and trygliserida levels were as follows: 218.17±48.88, 145.91±47.30, 39.72±15.99, and 153±65.55 mg/dl. High level of total cholesterol, LDL, and trygliserida were found in 52 (64.2%), 50 (61.7%), 14 (17.3%) patients consecutively meanwhile low HDL level was found in 51(63%) patients. Diabetes mellitus and hypertension were found in 24 (29.6%) and 58 (71.6%) patients. The mean length of stay was 8.44±4.36 days.Keywords: female, lipid profile, acute coronary syndromeAbstrak: Wanita dengan sindrom koroner akut (SKA) menampilkan karakteristik yang berbeda daripada laki-laki dengan SKA. Sampai saat ini, masih tersedia sedikit data mengenai karakteristik SKA pada wanita. Penelitian ini bertujuan mendapatkan gambaran profil lipid pada wanita dengan SKA yang dirawat di RSUP Prof. Dr. R. D. Kandou. Jenis penelitian ini deskriptif retrospektif dengan desain potong lintang. Subyek penelitian ialah pasien wanita dengan SKA yang dirawat di RSUP Prof. Dr. R. D. Kandou, Manado dari Januari 2012-Desember 2013. Data dikumpulkan dari rekam medis. Kriteria eksklusi meliputi data yang tidak lengkap dan diagnosis selain SKA sebagai diagnosis utama. Hasil penelitian mendapatkan subyek 81 pasien wanita dengan usia rata-rata 61,59±10,78 tahun. Angina pektoris tak stabil ditemukan pada 38 pasien (46,9%), non-ST segment elevation myocardial infarction pada 15 pasien (18,5%), dan ST segment elevation myocardial infarction pada 28 pasien (34,6%). Kadar rerata kolesterol total, low density lipoprotein (LDL), high density lipoprotein (HDL), dan trigliserida ialah berturut-turut 218,17±48,88, 145,91±47,30, 39,72±15,99, dan 153±65,55 mg/dl. Kadar kolesterol total, LDL, trigliserida yang tinggi ditemukan berturut-turut pada 52 pasien (64,2%), 50 pasien (61,7%), dan 14 pasien (17,3%) sedangkan kadar HDL yang rendah ditemukan pada 51 pasien (63%). Diabetes melitus dan hipertensi ditemukan pada 24 pasien (29,6%) dan 58 pasien (71,6%). Rerata lama perawatan di rumah sakit ialah 8,44±4,36 hari.Kata kunci: wanita, profil lipid, sindrom koroner akut

scholarly journals Association between gender and short-term outcome in patients with ST elevation myocardial infraction participating in the international, prospective, randomised Administration of Ticagrelor in the catheterisation Laboratory or in the Ambulance for New ST elevation myocardial Infarction to open the Coronary artery (ATLANTIC) trial: a prespecified analysis

BMJ Open ◽  
2017 ◽  
Vol 7 (9) ◽  
pp. e015241 ◽  
Author(s):  
Dimitrios Venetsanos ◽  
Sofia Sederholm Lawesson ◽  
Joakim Alfredsson ◽  
Magnus Janzon ◽  
Angel Cequier ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Coronary Artery ◽  
Independent Predictor ◽  
Female Gender ◽  
Short Term ◽  
St Segment Elevation ◽  
Timi Flow ◽  
St Segment ◽  
St Elevation ◽  
Catheterisation Laboratory

ObjectivesTo evaluate gender differences in outcomes in patents with ST-segment elevation myocardial infarction (STEMI) planned for primary percutaneous coronary intervention (PPCI).SettingsA prespecified gender analysis of the multicentre, randomised, double-blind Administration of Ticagrelor in the catheterisation Laboratory or in the Ambulance for New ST elevation myocardial Infarction to open the Coronary artery.ParticipantsBetween September 2011 and October 2013, 1862 patients with STEMI and symptom duration <6 hours were included.InterventionsPatients were assigned to prehospital versus in-hospital administration of 180 mg ticagrelor.OutcomesThe main objective was to study the association between gender and primary and secondary outcomes of the main study with a focus on the clinical efficacy and safety outcomes. Primary outcome: the proportion of patients who did not have 70% resolution of ST-segment elevation and did not meet the criteria for Thrombolysis In Myocardial Infarction (TIMI) flow 3 at initial angiography. Secondary outcome: the composite of death, MI, stent thrombosis, stroke or urgent revascularisation and major or minor bleeding at 30 days.ResultsWomen were older, had higher TIMI risk score, longer prehospital delays and better TIMI flow in the infarct-related artery. Women had a threefold higher risk for all-cause mortality compared with men (5.7% vs 1.9%, HR 3.13, 95% CI 1.78 to 5.51). After adjustment, the difference was attenuated but remained statistically significant (HR 2.08, 95% CI 1.03 to 4.20). The incidence of major bleeding events was twofold to threefold higher in women compared with men. In the multivariable model, female gender was not an independent predictor of bleeding (Platelet Inhibition and Patient Outcomes major HR 1.45, 95% CI 0.73 to 2.86, TIMI major HR 1.28, 95% CI 0.47 to 3.48, Bleeding Academic Research Consortium type 3–5 HR 1.45, 95% CI 0.72 to 2.91). There was no interaction between gender and efficacy or safety of randomised treatment.ConclusionIn patients with STEMI planned for PPCI and treated with modern antiplatelet therapy, female gender was an independent predictor of short-term mortality. In contrast, the higher incidence of bleeding complications in women could mainly be explained by older age and clustering of comorbidities.Clinical trial registrationNCT01347580;Post-results.

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