Hypoplastic left heart syndrome: valuing the survival

D L Williams1, A C Gelijns, A J Moskowitz

  • 1International Center for Health Outcomes and Innovation Research, Department of Surgery, Columbia University, College of Physicians and Surgeons, New York Presbyterian Hospital, New York, NY, USA.

Insights

Staged surgical repair for hypoplastic left heart syndrome (HLHS) shows 5-year survival of 54%, with developmental delays in early stages. Long-term outcomes require further study.

Area of Science:

  • Pediatric Cardiology
  • Congenital Heart Surgery
  • Developmental Pediatrics

Background:

  • Hypoplastic left heart syndrome (HLHS) is a severe congenital heart defect requiring complex surgical palliation.
  • Staged reconstructive surgery aims to improve survival and quality of life for affected children.

Purpose of the Study:

  • To evaluate survival rates, developmental status, quality of life, and direct medical costs in children with HLHS undergoing staged surgical repair (Stages I, II, and III).

Main Methods:

  • Kaplan-Meier survival analysis was performed on 106 children with HLHS who underwent staged repair between 1990 and 1999.
  • Quality of life and developmental progress were assessed using validated parent-reported questionnaires (CHQ-PF28, ASQ).
  • Hospital costs were calculated using the ratio-of-costs-to-charges method; physician and outpatient medication costs were also captured.

Main Results:

  • Institutional 1- and 5-year survival rates were 58% and 54%, respectively. Predictors of survival included birth weight, need for inotropic drugs, and surgical experience.
  • Children undergoing Norwood Stage I repair showed fewer developmental milestones compared to those surviving to later stages.
  • Median inpatient costs for Stages I, II, and III were $51,000, $33,892, and $52,183, with outpatient/readmission costs <10% of total.

Conclusions:

  • Staged surgical repair for HLHS yields moderate survival rates but highlights potential developmental challenges in early stages.
  • Further prospective research is necessary to comprehensively assess long-term developmental and quality-of-life outcomes, alongside cost-effectiveness of staged palliation and heart transplantation.
Abstract

Related Concept Videos

Mitral Stenosis I: Introduction01:22

Mitral Stenosis I: Introduction

Mitral Valve Stenosis (MVS) is a heart condition where the mitral valve narrows, impeding blood circulation from the left atrium to the left ventricle. The etiology and pathophysiology of this condition are multifaceted, leading to a cascade of cardiovascular complications.Causes of Mitral Valve StenosisRheumatic Heart Disease: It is the main cause of mitral valve stenosis, particularly in developing nations. This condition arises from rheumatic fever, an inflammatory illness resulting from...
Heart Failure VI: Adjunct Therapies01:22

Heart Failure VI: Adjunct Therapies

Additional therapies for treating patients with heart failure (HF) may include procedural interventions, supplemental oxygen, the management of sleep disorders, and nutritional therapy.Procedural InterventionsImplantable Cardioverter-Defibrillator: For patients at risk of life-threatening arrhythmias due to severe left ventricular dysfunction, an Implantable Cardioverter-Defibrillator (ICD) can detect and terminate these arrhythmias, preventing sudden cardiac death and improving survival rates.
Cardiomyopathy II: Dilated Cardiomyopathy01:30

Cardiomyopathy II: Dilated Cardiomyopathy

Dilated cardiomyopathy, or DCM, is a progressive myocardial disorder characterized by ventricular chamber dilation and contractile dysfunction.EtiologyVarious factors can cause DCM, including hypertension and heavy alcohol intake, which contribute to the weakening and enlargement of the heart muscle. Viral infections, such as Coxsackievirus B, adenoviruses, and influenza, can lead to DCM by causing inflammation and damage to heart tissue. Certain chemotherapeutic agents, including daunorubicin,...
Cardiomyopathy III: Hypertrophic Cardiomyopathy01:29

Cardiomyopathy III: Hypertrophic Cardiomyopathy

Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...
Cardiomyopathy V: Interprofessional Care01:29

Cardiomyopathy V: Interprofessional Care

Managing cardiomyopathy involves addressing underlying or precipitating causes, treating heart failure with medications, and implementing dietary changes and a balanced exercise and rest regimen.Lifestyle ModificationsCardiomyopathy patients should adopt a low-sodium diet to reduce fluid retention and manage heart failure. A personalized exercise and rest plan helps maintain physical fitness without overstraining the heart. Avoiding alcohol and tobacco is essential to prevent further damage to...
Cardiomyopathy VII: Pre and Post Operative Nursing Management01:28

Cardiomyopathy VII: Pre and Post Operative Nursing Management

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...