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Intermediate Technical IVT

HLHS

Also written as: HLHS — Hypoplastic Left Heart Syndrome

Abbreviation for Hypoplastic Left Heart Syndrome, a severe congenital heart defect involving underdevelopment of the left side of the heart.

Full Definition

HLHS is the standard medical abbreviation for Hypoplastic Left Heart Syndrome, one of the most complex and severe forms of congenital heart disease. This acronym is universally recognized in pediatric cardiology and appears frequently in medical literature, clinical notes, and surgical planning documents. The abbreviation is used extensively in multidisciplinary team communications, particularly when discussing staged surgical management protocols. Editorial teams should be familiar with this abbreviation as it appears in research abstracts, case series, and clinical guidelines related to single ventricle congenital heart disease.

Usage

Usage note: Spell out on first use in patient-facing documents.

In Context

  • "The multicenter study included 250 neonates diagnosed with HLHS over a five-year period." — Research manuscript
  • "Prenatal counseling for HLHS should address the three-stage surgical pathway and long-term prognosis." — Clinical guideline

Don't confuse with

HRHS HLH

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