Why the study?
How do glyceryl trinitrate and isometric stress affect non-invasive measures of left ventricular relaxation in normal subjects versus patients with ischaemic heart disease?
Population
65 subjects, comprising 10 normal subjects and 55 patients with ischaemic heart disease
Comparison
Glyceryl trinitrate administration and isometric… vs Baseline measurements and comparison between…
Design
Cross-sectional
Key result
Ischaemic heart disease was associated with a prolonged isovolumic relaxation time (99 ms) compared to normal subjects (72 ms).
Authors
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Suggests impaired relaxation in IHD; hypothesis-generating and requires prospective validation before clinical use.
Cross-Sectional (n=65)
How do glyceryl trinitrate and isometric stress affect non-invasive measures of left ventricular relaxation in normal subjects versus patients with ischaemic heart disease?
Absolute Event Rate: 99% vs 72%
Glyceryl trinitrate and isometric stress alter non-invasive mechanocardiographic measures of left ventricular relaxation in patients with ischaemic heart disease.
Mattheos et al. (1982) conducted a cross-sectional in Ischaemic heart disease (n=65). Ischaemic heart disease vs. Normal subjects was evaluated on Isovolumic relaxation time. Ischaemic heart disease was associated with a prolonged isovolumic relaxation time (99 ms) compared to normal subjects (72 ms).