Paracentesis: Difference between revisions
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A '''paracentesis''' is a medical "procedure in which fluid is withdrawn from a body cavity via a trocar and cannula, needle, or other hollow instrument."<ref>{{MeSH}}</ref><ref name="pmid18334692">{{cite journal |author=Wong CL, Holroyd-Leduc J, Thorpe KE, Straus SE |title=Does this patient have bacterial peritonitis or portal hypertension? How do I perform a paracentesis and analyze the results? |journal=JAMA |volume=299 |issue=10 |pages=1166–78 |year=2008 |month=March |pmid=18334692 |doi=10.1001/jama.299.10.1166 |url=http://jama.ama-assn.org/cgi/pmidlookup?view=long&pmid=18334692 |issn=}}</ref> A paracentesis usually refers to removing [[ascites]]. | A '''paracentesis''' is a medical "procedure in which fluid is withdrawn from a body cavity via a trocar and cannula, needle, or other hollow instrument."<ref>{{MeSH}}</ref><ref name="pmid18334692">{{cite journal |author=Wong CL, Holroyd-Leduc J, Thorpe KE, Straus SE |title=Does this patient have bacterial peritonitis or portal hypertension? How do I perform a paracentesis and analyze the results? |journal=JAMA |volume=299 |issue=10 |pages=1166–78 |year=2008 |month=March |pmid=18334692 |doi=10.1001/jama.299.10.1166 |url=http://jama.ama-assn.org/cgi/pmidlookup?view=long&pmid=18334692 |issn=}}</ref><ref name="pmid17093242">{{cite journal |author=Thomsen TW, Shaffer RW, White B, Setnik GS |title=Videos in clinical medicine. Paracentesis |journal=N. Engl. J. Med. |volume=355 |issue=19 |pages=e21 |year=2006 |month=November |pmid=17093242 |doi=10.1056/NEJMvcm062234 |url=http://content.nejm.org/cgi/pmidlookup?view=short&pmid=17093242 |issn=}}</ref> A paracentesis usually refers to removing [[ascites]]. | ||
==Procedure== | ==Procedure== | ||
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==Interpretation results== | ==Interpretation results== | ||
A serum-ascites albumin gradient (SAAG) of less than 1.1 g/dL lowers the probability of portal hypertension.<ref name="pmid18334692"/> | Cell count | ||
* Polymorphonuclear cells count of 250/mm<sup>3</sup> or more suggests [[spontaneous bacterial peritonitis]] | |||
Albumin | |||
* A serum-ascites albumin gradient (SAAG) of less than 1.1 g/dL lowers the probability of portal hypertension.<ref name="pmid18334692"/> | |||
Protein | |||
* Protein levels less than 1 g/dL have a high risk of [[spontaneous bacterial peritonitis]] during hospitalizations. | |||
Cultures | |||
==References== | ==References== | ||
<references/> | <references/> | ||
Revision as of 23:05, 23 June 2008
A paracentesis is a medical "procedure in which fluid is withdrawn from a body cavity via a trocar and cannula, needle, or other hollow instrument."[1][2][3] A paracentesis usually refers to removing ascites.
Procedure
If a lower quadrant is used, inserting the needle lateral to the rectus muscle will avoid the inferior hypogastric artery.
Interpretation results
Cell count
- Polymorphonuclear cells count of 250/mm3 or more suggests spontaneous bacterial peritonitis
Albumin
- A serum-ascites albumin gradient (SAAG) of less than 1.1 g/dL lowers the probability of portal hypertension.[2]
Protein
- Protein levels less than 1 g/dL have a high risk of spontaneous bacterial peritonitis during hospitalizations.
Cultures
References
- ↑ Anonymous (2024), Paracentesis (English). Medical Subject Headings. U.S. National Library of Medicine.
- ↑ 2.0 2.1 Wong CL, Holroyd-Leduc J, Thorpe KE, Straus SE (March 2008). "Does this patient have bacterial peritonitis or portal hypertension? How do I perform a paracentesis and analyze the results?". JAMA 299 (10): 1166–78. DOI:10.1001/jama.299.10.1166. PMID 18334692. Research Blogging.
- ↑ Thomsen TW, Shaffer RW, White B, Setnik GS (November 2006). "Videos in clinical medicine. Paracentesis". N. Engl. J. Med. 355 (19): e21. DOI:10.1056/NEJMvcm062234. PMID 17093242. Research Blogging.