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[Characteristics of ischemic heart disease patients with late ventricular potentials]
W Banasiak1, J Petruk-Kowalczyk, A Fuglewicz
1Kliniki Chorób Wewnetrznych Wojskowego Szpitala Klinicznego, Wrocławiu.
Insights
This study compared ischemic heart disease patients with and without late potentials (LP). Despite tendencies toward more arrhythmias and silent ischemia in LP patients, no distinct differentiating diagnostic parameters were found.
Area of Science:
- Cardiology
- Electrophysiology
- Diagnostic Methods
Background:
- Ischemic heart disease (IHD) is a leading cause of mortality.
- Late potentials (LP) are associated with increased risk of ventricular arrhythmias.
- Noninvasive diagnostic methods are crucial for risk stratification in IHD patients.
Purpose of the Study:
- To compare ischemic heart disease (IHD) patients with and without late potentials (LP).
- To identify potential differentiating parameters using noninvasive diagnostic methods.
Main Methods:
- Echocardiographic examination
- Exercise testing
- 24-hour Holter ambulatory monitoring
- Signal-averaged electrocardiography (SAECG) for atrial and ventricular potentials
- Comparison of 25 IHD patients with LP and 100 IHD patients without LP.
Main Results:
- Patients with LP showed tendencies towards more frequent ventricular arrhythmias on Holter monitoring.
- Patients with LP also showed tendencies towards more frequent silent ischemia during exercise testing.
- No statistically significant differentiating parameters were identified between the groups.
Conclusions:
- While late potentials (LP) in ischemic heart disease (IHD) patients may correlate with increased arrhythmias and silent ischemia, current noninvasive methods did not reveal distinct differentiating parameters.
- Further research may be needed to identify reliable noninvasive markers for risk stratification in IHD patients with LP.
Abstract:
The purpose of this study was to compare ischemic heart disease (IHD) patients with and without late potentials (LP) by using noninvasive diagnostic methods as: echocardiographic examination, exercise testing, 24-hours Holter ambulatory monitoring, recording of atrial and ventricular signal-averaged ECG. Examination covered 25 IHD pts (12 male and 13 female) with LP, mean age 58.6 +/- 7.3 (group I) and 100 IHD pts (65 male and 35 female) without LP, mean age 56.8 +/- 8.5 (group II). Summing up, it should be stated that despite showing tendencies to much often occurrences of ventricular arrhythmias on Holter monitoring and silent ischemia during exercise testing in IHD pts with LP we were unable to indicate distinctive differentiating parameters between investigated groups.