What is the clinical evidence from this study?

Study design: Other. Population: Hypertrophic obstructive cardiomyopathy. Intervention: Transaortic septal myectomy.

What does this research mean for the field?

Transaortic septal myectomy is the gold standard treatment for drug-refractory left ventricular outflow tract obstruction in hypertrophic cardiomyopathy, offering lower complication rates and more durable reduction of obstruction compared to percutaneous ablation. Novelty: ClaimNovelty.SYNTHESIS. Consensus alignment: ConsensusAlignment.NEUTRAL.

July 1, 2017Annals of Cardiothoracic SurgeryOpen Access

Transaortic septal myectomy: techniques and pitfalls

Q: What are the key findings of this study?

Transaortic septal myectomy is the gold standard surgical treatment for left ventricular outflow tract obstruction in hypertrophic cardiomyopathy, with mortality typically less than 1% in dedicated centers.

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Key result

Transaortic septal myectomy remains the gold standard for LVOTO in HCM with <1% mortality.

Population

Individuals with Hypertrophic cardiomyopathy (HCM) causing left ventricular outflow tract (LVOT) obstruction.

Comparison

Surgical myectomy (transaortic septal myectomy) vs Percutaneous ablation of the hypertrophic…

Design

Review

Authors

ARAnthony Ralph‐EdwardsUniversity Health Network RVRachel D. VanderlaanUniversity Health Network PBPietro BajonaAllegheny General Hospital

Discussion

Member takes

Implication

Supports myectomy in experienced centers for obstructive HCM; leaves open need for randomized comparisons with alternatives.

Structured PICO

Population

Individuals with Hypertrophic cardiomyopathy (HCM) causing left ventricular outflow tract (LVOT) obstruction.

Intervention

Surgical myectomy (transaortic septal myectomy)

Comparator

Percutaneous ablation of the hypertrophic myocardium

Surgical myectomy remains the gold standard treatment for symptomatic LVOT obstruction in HCM when pharmacologic therapy fails.

Limitations

The operation is difficult to learn and master due to the infrequency of patients requiring septal myectomy.
Risk of iatrogenic ventricular septal defect if resection is excessive.
Risk of injuring the bundle of His, with a 4-6% need for postoperative pacing.

Cite This Study

Ralph‐Edwards et al. (2017) studied Hypertrophic obstructive cardiomyopathy. Transaortic septal myectomy was evaluated. Transaortic septal myectomy is the gold standard surgical treatment for left ventricular outflow tract obstruction in hypertrophic cardiomyopathy, with mortality typically less than 1% in dedicated centers.

synapsesocial.com/papers/6aaf63c108f95d0557ce9ea0 https://doi.org/10.21037/acs.2017.07.08

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Transaortic septal myectomy: techniques and pitfalls

Discussion

Member takes

Implication

Structured PICO

Limitations

Cite This Study

Transaortic septal myectomy: techniques and pitfalls

Discussion

Member takes

Implication

Structured PICO

Limitations

Cite This Study

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