Key result
Temporary occlusion of the septal branch in patients with hypertrophic obstructive cardiomyopathy significantly reduced the intraventricular gradient from 56.2 mmHg to 32.2 mmHg (P < 0.05).
Why the study?
Does temporary occlusion of the septal branch reduce the intraventricular gradient in patients with hypertrophic obstructive cardiomyopathy?
Population
10 consecutive patients with hypertrophic obstructive cardiomyopathy
Comparison
Temporary occlusion of the first larger septal… vs Baseline and post-release of occlusion
Design
Case_series
Follow-up
Acute (during procedure)
Authors
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Supports physiological basis for septal ablation in HOCM; hypothesis-generating and requires prospective validation.
Does temporary occlusion of the septal branch reduce the intraventricular gradient in patients with hypertrophic obstructive cardiomyopathy?
Absolute Event Rate: 32.2% vs 56.2%
p-value: p=<0.05
Temporary occlusion of the septal branch induces regional ischemia and significantly reduces the intraventricular gradient in HOCM, providing a physiological basis for catheter-based septal reduction therapy.
Kuhn et al. (1997) studied Hypertrophic obstructive cardiomyopathy (n=10). Temporary occlusion of the first larger septal branch of the left anterior descending coronary artery vs. Baseline (before occlusion) was evaluated on Intraventricular gradient (p=<0.05). Temporary occlusion of the septal branch in patients with hypertrophic obstructive cardiomyopathy significantly reduced the intraventricular gradient from 56.2 mmHg to 32.2 mmHg (P < 0.05).
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