scholarly journals Detection of Acute Myocardial Infarction in a Pig Model Using the SAN-Atrial-AVN-His (SAAH) Electrocardiogram (ECG), Model PHS-A10, an Automated and Integrated Signals Recognition System

2018 ◽  
Vol 24 ◽  
pp. 1303-1309
Author(s):  
Wenjiao Zhao ◽  
Guihua Lu ◽  
Li Liu ◽  
Zhishan Sun ◽  
Mingxin Wu ◽  
...  
2017 ◽  
Vol 63 (1) ◽  
pp. 394-402 ◽  
Author(s):  
Johannes Tobias Neumann ◽  
Nils Arne Sörensen ◽  
Francisco Ojeda ◽  
Tjark Schwemer ◽  
Jonas Lehmacher ◽  
...  

Abstract AIMS Serial measurements of high-sensitivity troponin are used to rule out acute myocardial infarction (AMI) with an assay specific cutoff at the 99th percentile. Here, we evaluated the performance of a single admission troponin with a lower cutoff combined with a low risk electrocardiogram (ECG) to rule out AMI. METHODS Troponin I measured with a high-sensitivity assay (hs-TnI) was determined at admission in 1040 patients presenting with suspected AMI (BACC study). To rule out AMI we calculated the negative predictive value (NPV) utilizing the optimal hs-TnI cutoff combined with a low risk ECG. The results were validated in 3566 patients with suspected AMI [2-h Accelerated Diagnostic Protocol to Assess Patients With Chest Pain Symptoms Using Contemporary Troponins as the Only Biomarker (ADAPT) studies]. Patients were followed for 6 or 12 months. RESULTS 184 of all patients were diagnosed with AMI. An hs-TnI cutoff of 3 ng/L resulted in a NPV of 99.3% (CI 97.3–100.0), ruling out 35% of all non-AMI patients. Adding the information of a low risk ECG resulted in a 100% (CI 97.5–100.0) NPV (28% ruled out). The 2 validation cohorts replicated the high NPV of this approach. The follow-up mortality in the ruled out population was low (0 deaths in BACC and Stenocardia, 1 death in ADAPT). CONCLUSIONS A single hs-TnI measurement on admission combined with a low risk ECG appears to rule out AMI safely without need for serial troponin testing. Trial Registration: www.clinicaltrials.gov (NCT02355457).


Medicinus ◽  
2018 ◽  
Vol 5 (3) ◽  
Author(s):  
Vito Damay

<p><em>Third-degree atrioventricular (AV) block also termed complete heart block is present when there is complete absence of conduction between atria and ventricles. In adults the most common causes are acute myocardial infarction and age-related degeneration of conduction system. Incidence of conduction block is reported to be 25-30 % in the setting of acute myocardial infarction (AMI) and is 2 to 3 times as commonly associated with inferior than anterior infarction. Proper diagnosis involves noninvasive diagnostic tests (12 lead electrocardiogram (ECG), Holter ECG, or stress/exercise ECG).</em></p><p><strong><em>Keywords: third-degree AV block, complete av block, acute myocardial infarction</em></strong></p>


2013 ◽  
Vol 20 (2) ◽  
pp. 110-122 ◽  
Author(s):  
Amir Gahremanpour ◽  
Deborah Vela ◽  
Yi Zheng ◽  
Guilherme V. Silva ◽  
William Fodor ◽  
...  

2003 ◽  
Vol 10 (2) ◽  
pp. 121-123
Author(s):  
YF Choi ◽  
AYC Siu ◽  
TW Wong ◽  
CC Lau

Acute myocardial infarction (AMI) is one of the most alerting situations in emergency department. Electrocardiogram (ECG) is one of the most important diagnostic tools and the decision about thrombolytic therapy is usually based upon ECG findings when clinically suspicious. However, ST segment elevation is not always equivalent to acute myocardial infarction. We present a rare syndrome whose ECG shows persistent ST elevation not related to AMI.


1998 ◽  
Vol 4 (1_suppl) ◽  
pp. 5-7 ◽  
Author(s):  
P Giovas ◽  
D Papadoyannis ◽  
D Thomakos ◽  
G Papazachos ◽  
M Rallidis ◽  
...  

Delay is the enemy for patients with acute myocardial infarction. It would be helpful for the hospital cardiologist to interpret the patient's electrocardiogram(ECG) before the arrival of the ambulance. The aim of our study was to determine whether ECG transmission from an ambulance is feasible and to assess the time savings. An ambulance was equipped with an ECG recorder, which was connected to a notebook computer and coupled to acellular telephone for transmission to a hospital-based station. Paramedics needed 2 min (SD 0.5) to record the ECG on the move and 34 s(SD 14) to transmit it. The ambulance arrived 15.5 min (SD 6.5) after reception. The time between arrival and ECG diagnosis, for a control group patient, was approximately 9.5 min (SD 3.5). Therefore, pre-hospital ECG diagnosis took place 25 min (SD 7.5) before in hospital diagnosis. We conclude that ECG transmission from a moving ambulance is feasible, reduces in-hospital delays and allows faster triage in critical cardiac cases.


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