The physiologic basis for and nursing considerations in the use of subatmospheric concentrations of oxygen in HLHS.

Angela Green, Sherry Pye, Anji T. Yetman

Research output: Contribution to journalReview article

3 Citations (Scopus)

Abstract

Subatmospheric concentrations of oxygen are used in the preoperative and postoperative care of infants with hypoplastic left heart syndrome (HLHS). This technique increases the pulmonary vascular resistance (PVR) and thereby improves systemic blood flow. There have been no controlled studies of this therapy in humans. Changes in aortic blood flow patterns, suggesting improved systemic circulation after administration of nitrogen, have been shown by Doppler ultrasound. Video segments are included in the electronic version of this article to demonstrate the immediate circulatory effects of therapy. No significant long-term effects on PVR have been found. A clear understanding of the anatomy, physiology, and therapeutic maneuvers used to balance pulmonary blood flow and systemic blood flow is essential for caregivers of infants with HLHS. Infants receiving subatmospheric concentrations of oxygen require meticulous nursing care to detect early changes in the relative vascular resistance and to monitor for the hemodynamic effects of medical and nursing interventions.

Original languageEnglish (US)
Pages (from-to)177-186
Number of pages10
JournalAdvances in neonatal care : official journal of the National Association of Neonatal Nurses
Volume2
Issue number4
DOIs
StatePublished - Aug 2002

Fingerprint

Hypoplastic Left Heart Syndrome
Nursing
Vascular Resistance
Oxygen
Preoperative Care
Doppler Ultrasonography
Postoperative Care
Nursing Care
Caregivers
Anatomy
Nitrogen
Therapeutics
Hemodynamics
Lung

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health

Cite this

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abstract = "Subatmospheric concentrations of oxygen are used in the preoperative and postoperative care of infants with hypoplastic left heart syndrome (HLHS). This technique increases the pulmonary vascular resistance (PVR) and thereby improves systemic blood flow. There have been no controlled studies of this therapy in humans. Changes in aortic blood flow patterns, suggesting improved systemic circulation after administration of nitrogen, have been shown by Doppler ultrasound. Video segments are included in the electronic version of this article to demonstrate the immediate circulatory effects of therapy. No significant long-term effects on PVR have been found. A clear understanding of the anatomy, physiology, and therapeutic maneuvers used to balance pulmonary blood flow and systemic blood flow is essential for caregivers of infants with HLHS. Infants receiving subatmospheric concentrations of oxygen require meticulous nursing care to detect early changes in the relative vascular resistance and to monitor for the hemodynamic effects of medical and nursing interventions.",
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