Journal: Annals of Noninvasive Electrocardiology

Article Title: Relationship between electrocardiogram‐based features and personality traits: Machine learning approach

doi: 10.1111/anec.12919

Figure Lengend Snippet: Normal heartbeat ECG signal marked with temporal and amplitude‐based features: clinically not relevant (left‐hand panel) and clinically relevant (right‐hand panel) parameters

Article Snippet: Electrocardiogram signals were recorded from standard bipolar Lead I using the BIOPAC MP150 unit with AcqKnowledge software and ECG 100C module with surface H135SG Ag/AgCl electrodes (Kendall/Covidien).

Techniques:

Journal: Journal of the American Heart Association

Article Title: Targeted M‐Channel Activation in the Left Stellate Ganglion Protects Against Ischemia‐Induced Ventricular Arrhythmias in Canines

doi: 10.1161/jaha.124.039059

Figure Lengend Snippet: Figure 2. Retigabine reduces the incidence of spontaneous VAs following AMI. A, Representative ECG traces (lead II) after coronary ligation. B, Comparison of Tp-Te (n=12). C–E, Frequency of VPB and frequency and duration of VT (n=12). F, Incidence of VF (n=12). Values represent the mean±SEM. All measurements were obtained within the first hour post coronary artery ligation. AMI indicates acute myocardial ischemia; Tp-Te, Tpeak-Tend interval; VF, ventricular fibrillation; VPB, ventricular premature beats; and VT, ventricular tachycardia.

Article Snippet: The Tpeak- Tend (Tp- Te) interval was measured 1 hour post AMI using LabChart 8.1 software with ECG Analysis Module v2.4 (AD Instruments).

Techniques: Ligation, Comparison

Journal: American Journal of Physiology - Heart and Circulatory Physiology

Article Title: Targeted ablation of cardiac sympathetic neurons reduces the susceptibility to ischemia-induced sustained ventricular tachycardia in conscious rats

doi: 10.1152/ajpheart.00955.2009

Figure Lengend Snippet: One-second analog recordings of arterial pressure and the electrocardiogram (ECG) before coronary artery occlusion (preoccclusion), at 4 min of occlusion, and at the onset of sustained ventricular tachycardia and reduction in arterial pressure (prearrhythmia) from two rats. Each rat received bilateral stellate injections of cholera toxin B (CTB; top) or CTB-saporin (SAP; bottom). The time from coronary artery occlusion to the onset of sustained ventricular tachycardia and reduction in arterial pressure was defined as the ventricular arrhythmia threshold. Coronary artery occlusion was documented by ST segment elevation. Note the higher ST segment elevation in the CTB rat compared with the CTB-SAP rat at 4 min of occlusion. CTB-SAP rats had a significantly longer ventricular arrhythmia threshold compared with control and CTB rats. In this example, the sustained ventricular tachycardia and reduction in arterial pressure occurred at 4 min and 12 s in the CTB rat compared with 10 min in the CTB-SAP rat.

Article Snippet: The ECGs were analyzed offline to measure the ST segment elevation (voltage difference between the baseline and J point) using the ECG analysis software for Chart [ADInstruments ( 54 )]. fig ft0 fig mode=article f1 fig/graphic|fig/alternatives/graphic mode="anchored" m1 Open in a separate window Fig. 2. caption a7 Ventricular arrhythmia threshold (VAT) in the control, CTB, and CTB-SAP groups.

Techniques:

Journal: International Journal of Molecular Sciences

Article Title: Reactive Oxygen Species Cause Exercise-Induced Angina in a Myocardial Ischaemia-Reperfusion Injury Model

doi: 10.3390/ijms23052820

Figure Lengend Snippet: Myocardial ischaemia-reperfusion produces potential cardiac dysfunction in rats. ( A ) The average number of animal activities within 24 h in the sham group ( n = 4, black) and I/R model group ( n = 4, green). Shaded areas represent the dark period of the 12 h light/12 h dark cycle. ( B ) Summary of animal activities for light period (left), dark period (middle) and total activity (right). ( C ) Image shows the Evan’s blue- and 2,3,5-triphenyltetrazolium chloride (TTC)-stained heart samples of the sham group (top) and I/R model group (bottom) 2 days after the surgery. ( D ) Percentage of area at risk (red) and infarction (white) in the heart samples of the sham group ( n = 4) and I/R model group ( n = 4). ( E ) Sample traces illustrate the average waveform of electrocardiogram in the sham group ( n = 6) and I/R model group ( n = 8). ( F – H ) Summary of PR interval ( F ), R amplitude ( G ) and T amplitude ( H ) of the sham group ( n = 6) and I/R model group ( n = 8). All animals were used for the experiment 2 days after the surgery. Data are expressed as mean ± standard error of mean. * p < 0.05, *** p < 0.001, unpaired Student’s t -test. I/R: ischaemia-reperfusion; ns: not significant.

Article Snippet: Furthermore, the ECG waveform was analysed using a specific software (ECG Analysis Module V8, LabChart Pro, ADInstruments, Dunedin, New Zealand).

Techniques: Activity Assay, Staining

Journal: International Journal of Molecular Sciences

Article Title: Reactive Oxygen Species Cause Exercise-Induced Angina in a Myocardial Ischaemia-Reperfusion Injury Model

doi: 10.3390/ijms23052820

Figure Lengend Snippet: ECG parameters of sham and I/R groups.

Article Snippet: Furthermore, the ECG waveform was analysed using a specific software (ECG Analysis Module V8, LabChart Pro, ADInstruments, Dunedin, New Zealand).

Techniques: