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Related Experiment Video

Updated: Dec 22, 2025

Increasing Pulmonary Artery Pulsatile Flow Improves Hypoxic Pulmonary Hypertension in Piglets
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Increasing Pulmonary Artery Pulsatile Flow Improves Hypoxic Pulmonary Hypertension in Piglets

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Hypoxic pulmonary vasoconstriction.

Erik R Swenson1

  • 1Department of Medicine, University of Washington, VA Puget Sound Health Care System, Seattle, WA 98108, USA. eswenson@u.washington.edu

High Altitude Medicine & Biology
|June 26, 2013
PubMed
Summary
This summary is machine-generated.

Hypoxic pulmonary vasoconstriction (HPV) is a vital response in air-breathing animals, crucial for fetal development and gas exchange. This review explores HPV mechanisms, benefits, and drawbacks in various physiological states.

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Area of Science:

  • Cardiopulmonary Physiology
  • Respiratory Medicine
  • Vascular Biology

Background:

  • Hypoxic pulmonary vasoconstriction (HPV) has been studied since 1946.
  • HPV is a fundamental response in vertebrate gas-exchanging organs.
  • It plays a key role in fetal adaptation to air breathing and ventilation-perfusion matching.

Purpose of the Study:

  • To provide a comprehensive overview of HPV.
  • To discuss the intricate mechanisms underlying HPV.
  • To examine the advantages and disadvantages of HPV in health, disease, and high altitude.

Main Methods:

  • Literature review of HPV.
  • Analysis of physiological and pathological roles of HPV.
  • Synthesis of current understanding of HPV mechanisms.

Main Results:

  • HPV is an intrinsic vascular smooth muscle response.
  • It is modulated by endothelium, erythrocytes, innervation, hormones, and acid-base status.
  • HPV has significant implications in fetal transition, health, and disease.

Conclusions:

  • HPV is a complex, multifaceted physiological response.
  • Understanding HPV is critical for managing cardiopulmonary conditions.
  • Further research into HPV modulation may offer therapeutic avenues.