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[Portopulmonary hypertension].

M Halank1, S Miehlke, M Kolditz

  • 1Universitätsklinikum Carl Gustav Carus der TU Dresden, Medizinische Klinik I,Bereich Pneumologie, Dresden. Michael.Halank@uniklinikum-dresden.de

Zeitschrift Fur Gastroenterologie
|July 8, 2005
PubMed
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Portopulmonary hypertension (PPHT) is a serious complication of portal hypertension, characterized by elevated pulmonary pressure and resistance. Current treatment involves prostacyclin, with other therapies needing further investigation.

Area of Science:

  • Cardiology
  • Pulmonology
  • Hepatology

Background:

  • Portal hypertension can lead to pulmonary complications like hepatopulmonary syndrome (HPS) and portopulmonary hypertension (PPHT).
  • Portopulmonary hypertension (PPHT) is defined by elevated pulmonary pressure and vascular resistance in patients with portal hypertension, excluding other causes.
  • The pathogenesis of PPHT is thought to involve hyperdynamic circulation, volume overload, and vasoactive mediators.

Purpose of the Study:

  • To define portopulmonary hypertension (PPHT) and discuss its clinical implications.
  • To review the current understanding of PPHT pathogenesis.
  • To outline current and potential future treatments for PPHT.

Main Methods:

  • Literature review of studies on portal hypertension and pulmonary complications.

Related Experiment Videos

  • Definition and diagnostic criteria for PPHT.
  • Discussion of pathogenetic factors and clinical presentation.
  • Review of treatment strategies, including prostacyclin, iloprost, and bosentan.

    • Main Results:

    • PPHT is characterized by specific hemodynamic criteria and can present with dyspnea.
    • Severe PPHT significantly worsens prognosis due to right heart failure risk.
    • Liver transplantation in moderate to severe PPHT is associated with increased mortality.

    Conclusions:

    • Continuous intravenous prostacyclin is the current standard for severe PPHT.
    • Inhaled prostacyclin, iloprost, and oral bosentan show promise but require further randomized controlled trials.
    • Understanding PPHT pathogenesis and refining treatment are crucial for improving patient outcomes.