Sensitivity and specificity of the Vectraplex electrocardiogram system with a cardiac electric biomarker in the diagnosis of ST-elevation myocardial infarction.

Sensitivity and specificity of the Vectraplex electrocardiogram system with a cardiac electric biomarker in the diagnosis of ST-elevation myocardial infarction. Proc (Bayl Univ Med Cent). 2019 Jul;32(3):331-335 Authors: Mixon TA, Hardegree E, Shah J, Grable M, Fikes W Abstract ST-elevation myocardial infarction (STEMI) is a clinical diagnosis based on a compatible history and characteristic electrocardiographic changes. In the current era, STEMI is treated emergently with angiography, leading to percutaneous coronary intervention. However, false-positive electrocardiograms (ECGs) occur, resulting in unnecessary emergent catheterizations. We hypothesized that the Vectraplex cardiac electrical biomarker (CEB) would increase the specificity for the diagnosis of STEMI. We studied 50 patients who were identified by standard of care (clinical history, physical exam, and 12-lead ECG) as suspected to have STEMI and tested the sensitivity and specificity of the Vectraplex ECG system. Using the final clinical diagnosis (based on history, ECGs, troponin values, and angiographic findings) as the gold standard, we found the CEB value to be quite dynamic, with a reasonable sensitivity and a good positive predictive value but generally poor specificity and negative predictive value. It offered only a 20% improvement compared to 50-50 performance on receiver operator curves. PMID: 31384181 [PubMed]
Source: Baylor University Medical Center Proceedings - Category: Universities & Medical Training Authors: Tags: Proc (Bayl Univ Med Cent) Source Type: research

Related Links:

Authors: Kamizono Y, Ikeda D Abstract A 77-year-old woman was admitted to our hospital with severe ongoing chest pain. Electrocardiography showed ST-segment elevation in the inferior leads and tall R waves in leads V1-2. Posterior-inferior myocardial infarction was diagnosed. Emergent coronary angiography (CAG) revealed the wrap-around left anterior descending artery (LAD) with total occlusion distal to the cardiac apex. She underwent percutaneous coronary intervention (PCI). Despite difficulty navigating the long and tortuous LAD, we successfully performed reperfusion of the wrap-around LAD. CAG post-PCI showed th...
Source: Internal Medicine - Category: Internal Medicine Tags: Intern Med Source Type: research
We reported the overall accuracies of 97.41% for healthy control (HC) vs. MI, 89.41 ± 9.89 for left and right culprit arteries vs. others, 88.2 ± 11.6 for left main arteries vs. right-coronary-ascending (RCA) and 93.67 ± 4.89 for left-anterior-descending (LAD) vs. left-circumflex (LCX). The IRA localization from paper ECG can be used to timely triage the patients with acute coronary syndromes to the percutaneous coronary intervention facilities.
Source: Sensors - Category: Biotechnology Authors: Tags: Article Source Type: research
Authors: Eckner D, Pauschinger M, Ademaj F, Martinovic K Abstract This disease with its multiple ischemic and non-ischemic manifestations is classified based on the fourth universal definition of myocardial infarction (MI). An acute myocardial injury is defined as a significant increase of cardiac troponins (cTn). In patients with an additional myocardial ischemia, which is defined by certain clinical, electrocardiographic, imaging and angiographic criteria, the diagnosis of acute MI can be made. Etiologically, MI can be divided into 5 types: type 1 ischemic by plaque rupture or plaque erosion with t...
Source: Herz - Category: Cardiology Tags: Herz Source Type: research
Authors: Arai R, Fukamachi D, Akutsu N, Tanaka M, Okumura Y Abstract A 76-year-old man suffering from chest pain was admitted to our hospital with a suspected acute myocardial infarction (AMI). Emergent coronary angiography revealed a totally occluded proximal left circumflex artery (LCX). During primary percutaneous coronary intervention, his blood pressure suddenly fell within seconds, and he developed pulseless electrical activity (PEA). Surprisingly, the 12-lead electrocardiogram (ECG) findings including the heart rate remained unchanged before and after the PEA, but a heart rate reduction and asystole occurred...
Source: International Heart Journal - Category: Cardiology Tags: Int Heart J Source Type: research
We reported our observation in electrocardiographic data and coronary angiography and its changes after a percutaneous coronary intervention, and then we discuss its pathophysiologic mechanism. PMID: 32341709 [PubMed - in process]
Source: Journal of Medicine and Life - Category: General Medicine Tags: J Med Life Source Type: research
CONCLUSIONS: AD personnel represent a small minority of MTF STEMI diagnoses and present with lower risk cardiovascular profiles. AD personnel received standard STEMI management compared to national performance measures, and were deployment ineligible after STEMI diagnoses. Further studies are needed to definitively explore the appropriate military dispositions for members with STEMI diagnoses and acute coronary syndromes. PMID: 32301975 [PubMed - as supplied by publisher]
Source: Military Medicine - Category: International Medicine & Public Health Tags: Mil Med Source Type: research
Abstract A 57-year-old male was admitted to the emergency room with chest pain that has been present for 3 hours. His blood pressure was 70/50 mmHg and heart rate was 48 bpm. 12-lead surface electrocardiography revealed inferior myocardial infarction and third-degree atrioventricular (AV) block. An emergency coronary angiography showed a 50% stenosis in the middle segment of the left anterior descending artery and 90% in the proximal circumflex (Cx) artery. The right coronary artery was totally occluded. After the predilatation with a 2.0x15 mm compliant balloon at 10 atm, a 3.5x24 mm bare metal stent was implante...
Source: Turk Kardiyoloji Dernegi arsivi - Category: Cardiology Authors: Tags: Turk Kardiyol Dern Ars Source Type: research
Rationale: Woven coronary artery is a very rare congenital anomaly which may lead to acute coronary syndrome in previous literatures. At present, there is no consensus on the treatment of this coronary artery abnormality. Patient concerns: A 48-year-old male was admitted to the other hospital because of persistent chest pain. The electrocardiogram showed an ST-segment elevation in the v1-v5 lead and the patient was diagnosed with acute anterior myocardial infarction. Coronary angiography revealed 2 lumens in the proximal segment of the left anterior descending artery. Then the patient was transferred to our hospital f...
Source: Medicine - Category: Internal Medicine Tags: Research Article: Clinical Case Report Source Type: research
We report the case of a 33-year-old woman with no history of coronary risk factors or chest pain who experienced intermittent chest pain at rest for several minutes from 2 PM. At 8 AM the next day, chest pain recurred and persisted for about 1 hour. She was transported to our hospital by ambulance, where electrocardiogram showed ST-elevation in the precordial leads, and blood tests showed elevation of cardiac markers. She was diagnosed with ST-elevation myocardial infarction. Because she was a young woman without any risk factors, coronary spastic angina was suspected. Coronary angiography without intracoronary nitrate adm...
Source: International Heart Journal - Category: Cardiology Tags: Int Heart J Source Type: research
CONCLUSIONS: Short-term survival for patients with STEMI and OHCA undergoing emergent coronary angiography and revascularization with TTM in this contemporary, multicenter registry was high and neurologic outcome was good in more than half of patients. PMID: 31941835 [PubMed - as supplied by publisher]
Source: The Journal of Invasive Cardiology - Category: Cardiology Tags: J Invasive Cardiol Source Type: research
More News: Angiography | Angioplasty | Coronary Angioplasty | Electrocardiogram | Heart Attack | Percutaneous Coronary Intervention | Universities & Medical Training