FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2124884732> ?p ?o ?g. }

• W2124884732 abstract "A Portopulmonary Venous Anastomosis (PPVA) is a direct vascular connection between the portal venous system and the pulmonary veins, close to the left atrium. We describe a patient with advanced cirrhosis and moderately severe Hepatopulmonary Syndrome (HPS) in whom (PPVA) was demonstrated by a high resolution computed tomographic scan. In order to reduce the symptoms of hypoxia in our patient, we sequentially performed Transjugular Intrahepatic Portosystemic Shunt (TIPS) followed by a catheter based obliteration of the PPVA. The case raised three questions which were addressed through an extensive literature review. Among patients with advanced cirrhosis, what is the frequency of PPVA? Our literature review suggests that the frequency of finding a PPVA in patients with portal hypertension depends on the imaging technique used. Transhepatic or transvenous portal venography may demonstrate PPVA in about 20% of patients with cirrhosis and varices. Limited published experience with contrast enhanced (bubble) echocardiography suggests that PPVA may be present in about 30% of such patients. An increasing number of case reports of PPVA have been published in recent years. This observation indicates that routine use of High Resolution Computed Tomography (HRCT) and magnetic resonance imaging is able to identify PPVA in cirrhotic patients. The visualization of PPVA with HRCT depends on the timing of the contrast injection and the expertise of the viewer. Among cirrhotic patients with PPVA, what is the clinical significance of the PPVA? There are multiple causes of clinically significant hypoxia in patients with cirrhosis. A PPVA is a right to left shunt that, theoretically, could be associated with clinically significant systemic arterial hypoxemia or emboli. There is not definitive evidence in the published literature that PPVA alone causes clinically significant hypoxia in cirrhotic patients. PPVA is, however, a documented important risk factor for systemic emboli when needle or catheter techniques are used to treat or prevent bleeding from gastroesophageal varices. What is the evidence that the obliteration of a documented PPVA will improve oxygenation in a cirrhotic patient with hypoxemia? Modern imaging methods may demonstrate a PPVA when patients with cirrhosis are investigated because of hypoxia. Previous authors have argued that the right to left shunting of blood in a PPVA does not have enough flow to significantly lower arterial oxygen concentration. Our report documents that the obliteration of a PPVA can be accomplished. However, our patient's oxygenation did not improve with obliteration of the PPVA. We do not believe that PPVA causes hypoxia. But knowledge of the frequency and clinical significance of PPVA is important for the care of patients with cirrhosis." @default.
• W2124884732 created "2016-06-24" @default.
• W2124884732 creator A5040789219 @default.
• W2124884732 date "2014-01-01" @default.
• W2124884732 modified "2023-09-26" @default.
• W2124884732 title "The Frequency and Significance of Portopulmonary Venous Anastomosis (PPVA): A Case Report and Literature Review" @default.
• W2124884732 cites W1490185573 @default.
• W2124884732 cites W159300472 @default.
• W2124884732 cites W1971172914 @default.
• W2124884732 cites W1974866599 @default.
• W2124884732 cites W1994251580 @default.
• W2124884732 cites W1995333672 @default.
• W2124884732 cites W1997431660 @default.
• W2124884732 cites W2011988848 @default.
• W2124884732 cites W2040036458 @default.
• W2124884732 cites W2052079499 @default.
• W2124884732 cites W2055740828 @default.
• W2124884732 cites W2080584195 @default.
• W2124884732 cites W2089476971 @default.
• W2124884732 cites W2090450689 @default.
• W2124884732 cites W2107733184 @default.
• W2124884732 cites W2116143391 @default.
• W2124884732 cites W2117827561 @default.
• W2124884732 cites W2130400538 @default.
• W2124884732 cites W2138435662 @default.
• W2124884732 cites W2152362439 @default.
• W2124884732 cites W2155109841 @default.
• W2124884732 cites W2156675598 @default.
• W2124884732 cites W2171099688 @default.
• W2124884732 cites W2184220776 @default.
• W2124884732 cites W2339052513 @default.
• W2124884732 cites W23874282 @default.
• W2124884732 cites W2417380254 @default.
• W2124884732 cites W2468679766 @default.
• W2124884732 cites W2474045864 @default.
• W2124884732 cites W2807603863 @default.
• W2124884732 doi "https://doi.org/10.15226/2374-815x/1/4/00125" @default.
• W2124884732 hasPublicationYear "2014" @default.
• W2124884732 type Work @default.
• W2124884732 sameAs 2124884732 @default.
• W2124884732 citedByCount "1" @default.
• W2124884732 countsByYear W21248847322021 @default.
• W2124884732 crossrefType "journal-article" @default.
• W2124884732 hasAuthorship W2124884732A5040789219 @default.
• W2124884732 hasBestOaLocation W21248847321 @default.
• W2124884732 hasConcept C126322002 @default.
• W2124884732 hasConcept C141071460 @default.
• W2124884732 hasConcept C164705383 @default.
• W2124884732 hasConcept C2777214474 @default.
• W2124884732 hasConcept C2777728312 @default.
• W2124884732 hasConcept C2778808290 @default.
• W2124884732 hasConcept C71924100 @default.
• W2124884732 hasConcept C8443397 @default.
• W2124884732 hasConceptScore W2124884732C126322002 @default.
• W2124884732 hasConceptScore W2124884732C141071460 @default.
• W2124884732 hasConceptScore W2124884732C164705383 @default.
• W2124884732 hasConceptScore W2124884732C2777214474 @default.
• W2124884732 hasConceptScore W2124884732C2777728312 @default.
• W2124884732 hasConceptScore W2124884732C2778808290 @default.
• W2124884732 hasConceptScore W2124884732C71924100 @default.
• W2124884732 hasConceptScore W2124884732C8443397 @default.
• W2124884732 hasIssue "4" @default.
• W2124884732 hasLocation W21248847321 @default.
• W2124884732 hasOpenAccess W2124884732 @default.
• W2124884732 hasPrimaryLocation W21248847321 @default.
• W2124884732 hasRelatedWork W2008851126 @default.
• W2124884732 hasRelatedWork W2011347913 @default.
• W2124884732 hasRelatedWork W2049397185 @default.
• W2124884732 hasRelatedWork W2074833529 @default.
• W2124884732 hasRelatedWork W2159512267 @default.
• W2124884732 hasRelatedWork W2304633692 @default.
• W2124884732 hasRelatedWork W2378358762 @default.
• W2124884732 hasRelatedWork W2383187292 @default.
• W2124884732 hasRelatedWork W2399063111 @default.
• W2124884732 hasRelatedWork W924014734 @default.
• W2124884732 hasVolume "1" @default.
• W2124884732 isParatext "false" @default.
• W2124884732 isRetracted "false" @default.
• W2124884732 magId "2124884732" @default.
• W2124884732 workType "article" @default.