Comparison Of Electrocardiogram Research Articles

Comparison of electrocardiogram (ECG) waveforms and centralized ECG measurements between a wearable mobile ECG device and a standard 12-lead ECG

Comparison of electrocardiogram (ECG) waveforms and centralized ECG measurements between a wearable mobile ECG device and a standard 12-lead ECG

Comparison of Electrocardiogram and QT Interval between Viral Hepatitis Cirrhosis and Alcoholic Cirrhosis.

Objective This study aims to compare the electrocardiogram (ECG) abnormalities and QT interval prolongation in 2,886 patients with viral hepatitis cirrhosis and 643 patients with alcoholic cirrhosis in order to understand the characteristics of ECG in patients with cirrhosis and provide information and evidence for clinical diagnosis and treatment. Methods The ECG data of patients with viral hepatitis cirrhosis and alcoholic liver cirrhosis in the outpatients and inpatients of our hospital from August 2012 to July 2018 were reviewed. The ECG data were recorded, and the ECG report was issued by ECG experts to analyze the abnormal ECG and QT interval of patients in these two groups. Results In the present study, 1,132 (39.22%) of the 2,886 patients with viral liver cirrhosis and 322 (50.08%) of the 643 patients with alcoholic liver cirrhosis had an abnormal ECG (P < 0.001). Among patients with QT prolongation, 388 patients had viral liver cirrhosis (13.44%) and 170 patients had alcoholic liver cirrhosis (26.44%, P < 0.001). Conclusion The hemodynamics and electrophysiology of the myocardium are often changed in patients with cirrhosis, and ECG changes may also occur. QT interval prolongation is one of the most common electrophysiological abnormalities in patients with cirrhosis, and QT prolongation is more common in patients with alcoholic liver cirrhosis. Prolonged QT is associated with severe arrhythmia and sudden death and can warn of malignant arrhythmia and sudden death. Therefore, the routine detection of abnormal ECG and QT interval in patients with liver cirrhosis is of significant importance for preventing malignant events.

Computerized serial comparison of electrocardiograms

Computer analysis of electrocardiograms (ECGs) has been widely accepted in American hospitals for many years. It has been estimated that more than one-third of the 60 million ECGs obtained yearly in the United States are analyzed by a computer.’ The original development of ECG analysis programs was carried out in mainframe computers, and the difficulty in interfacing the ECG acquisition devices to the mainframe facilities usually caused delays in interpretation due to batch processing from digital magnetic tapes. In the 197Os, the development of minicomputer systems reduced the turnaround time dramatically by providing on-line (by telephone) connections between the ECG acquisition machines and the computer. Results could be transmitted back to a printer within 1 or 2 minutes. The minicomputer systems made it possible to store a large number of ECGs on their disks, and this capability led to the development of serial comparison programs to describe the clinical changes shown by subsequent ECGS.*-~ In the past five years, the development of ECG acquisition machines with built-in microcomputers has brought the analysis capability to the bedside. This technological advance has made it possible for small hospitals and physicians’ offices to implement computerized electrocardiography. On the other hand, these machines do not by themselves provide the capability for storage and retrieval of large num-

Perioperative myocardial injury: Comparison of electrocardiogram, creatine phosphokinase and technetium 99m pyrophosphate scan

Perioperative myocardial injury: Comparison of electrocardiogram, creatine phosphokinase and technetium 99m pyrophosphate scan

Notes: Comparison of Electrocardiograms of Small Animals Using an Oscilloscope and Direct-Writer

<i>Notes</i>: Comparison of Electrocardiograms of Small Animals Using an Oscilloscope and Direct-Writer