Background: Hepatopulmonary syndrome (HPS) is the association of liver disease, hypoxemia, and intrapulmonary vascular dilatations. There are little data on the management of HPS in children other than conventional orthotopic liver transplantation (OLT).
Aims: To describe the patient characteristics, mode of diagnosis, treatment, and outcomes of children with HPS at our center.
Methods: Retrospective review of patients diagnosed with HPS between 1997 and 2007 after IRB approval.
Results: There were 10 patients, six females; median age at diagnosis of HPS was 12 yr. Six with cirrhosis underwent OLT and had subsequent resolution of HPS and are stable at last follow-up. Of the remaining four, two had cirrhosis. HPS resolved without conventional OLT in the following four patients: hepatitis C after antiviral treatment, biliary atresia with portal hypertension after transjugular intrahepatic portosystemic shunting, Abernethy syndrome after auxiliary partial OLT, and in a child with splenic vein thrombosis after splenectomy.
Conclusions: Our series shows resolution of HPS in all patients and 100% survival after conventional OLT. Four children had resolution of HPS after surgical or medical treatments other than conventional OLT. Careful review of clinical status and underlying pathophysiology and anatomy at diagnosis of HPS should inform treatment decisions.
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http://dx.doi.org/10.1111/j.1399-0012.2010.01378.x | DOI Listing |
PLoS Comput Biol
January 2025
Department of Physical-Chemistry, Complutense University of Madrid, Madrid, Spain.
Intracellular liquid-liquid phase separation (LLPS) of proteins and nucleic acids is a fundamental mechanism by which cells compartmentalize their components and perform essential biological functions. Molecular simulations play a crucial role in providing microscopic insights into the physicochemical processes driving this phenomenon. In this study, we systematically compare six state-of-the-art sequence-dependent residue-resolution models to evaluate their performance in reproducing the phase behaviour and material properties of condensates formed by seven variants of the low-complexity domain (LCD) of the hnRNPA1 protein (A1-LCD)-a protein implicated in the pathological liquid-to-solid transition of stress granules.
View Article and Find Full Text PDFAdv Mater
December 2024
Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, Institute for Advanced Energy Materials, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, 710119, P. R. China.
Appl Radiat Isot
February 2025
Department of Physics, University of Surrey, Guildford, Surrey, GU2 7XH, UK.
In this project, we conducted micro-beam sensitivity mapping using the Diamond Light Source (DLS) synchrotron. We fabricated three samples with distinct metal contacts: Platinum (HPS-Pt) and Aluminium/Platinum (HPS-Al/Pt) on high-quality single crystal CVD diamond, and Platinum (VS-Pt) on lower purity single crystal CVD diamond. Our objective was to identify the most suitable sample for synchrotron measurements, particularly focusing on the lower purity sample due to its unique characteristics, such as thin nitrogen lines and substrate area.
View Article and Find Full Text PDFAdv Respir Med
October 2024
Department of Pediatrics and Basic Science, Ponce Health Sciences University, Ponce, PR 00716, USA.
Hermansky-Pudlak syndrome (HPS) is a rare autosomal recessive disorder characterized by defects in lysosome-related organelles. Given the high mortality rate associated with HPS pulmonary fibrosis (PF) and the significant risks tied to lung transplantation, it is essential to explore new tools for the early surveillance of PF to monitor its progression before clinical symptoms become apparent. This study evaluates the forced oscillation technique (FOT) for assessing PF in five adult patients with HPS, all homozygous for the (c.
View Article and Find Full Text PDFArq Gastroenterol
September 2024
Hospital das Clínicas da Universidade Federal de Minas Gerais, Grupo de Gastroenterologia Pediátrica, Belo Horizonte, MG, Brasil.
Background: Hepatopulmonary syndrome (HPS) is characterized by the triad of abnormal arterial oxygenation caused by intrapulmonary vascular dilatations (IPVD) in the setting of advanced liver disease or portal hypertension, impacting the patient's quality of life and survival. There are still many gaps in the literature on this topic, especially in pediatrics, with practices frequently based on extrapolation of data obtained from adults.
Objective: Provide a synthesis of the current knowledge about HPS in children.
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