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Patients with hypertrophic cardiomyopathy (HCM) and left ventricular outflow tract (LVOT) obstruction who remain symptomatic despite optimal medical therapy may undergo a septal myectomy (Morrow procedure). This procedure involves excising a portion of the hypertrophied septum below the aortic valve using a heart-lung machine to improve blood flow through the LVOT. Effective preoperative and postoperative nursing management ensures successful patient outcomes, minimizes complications, and...

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Related Experiment Video

Updated: Aug 30, 2025

Author Spotlight: Effect of Left Atrial Ligation on Avian Embryonic Hearts and HLHS Implications

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HLHS: Complex Anatomic Surgical Considerations During Treatment Pathway.

Tomasz Mroczek¹

¹Department of Pediatric Cardiac Surgery, Jagiellonian University, Krakow, Poland.

World Journal for Pediatric & Congenital Heart Surgery

|September 2, 2022

Summary

The Norwood operation for hypoplastic left heart syndrome requires modifications when aortic arch anatomy is unusual. This report details surgical techniques for these complex cases.

Keywords:

CHD Norwood procedure aortic arch hypoplastic left heart syndrome univentricular heart

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Area of Science:

Pediatric Cardiac Surgery
Congenital Heart Disease
Surgical Innovation

Background:

The Norwood operation is a standard first-stage palliation for hypoplastic left heart syndrome.
Anatomical variations in aortic arch structure or position can complicate the standard Norwood procedure.
Adaptations to the surgical technique are often necessary for successful outcomes.

Purpose of the Study:

To summarize surgical techniques for modifying the Norwood operation.
To address challenges posed by anomalous aortic arch anatomy in hypoplastic left heart syndrome.
To provide guidance for complex first-stage palliation cases.

Main Methods:

Review of surgical strategies for Norwood operation modifications.
Case-based analysis of anatomical variants and their surgical implications.
Description of procedural adaptations for aortic arch anomalies.

Main Results:

Standard Norwood operation may require significant modifications.
Specific techniques exist to manage complex aortic arch anatomy.
Successful palliation is achievable with tailored surgical approaches.

Conclusions:

Surgical modifications are crucial for Norwood palliation in hypoplastic left heart syndrome with aortic arch anomalies.
Tailored techniques ensure effective management of anatomical variants.
This report offers valuable insights into adapting the Norwood procedure for challenging anatomies.