• Jeffrey H Barsuk, Joe Feinglass, Sarah E Kozmic, Samuel F Hohmann, Daniel Ganger, and Diane B Wayne.
• Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois.
• J Hosp Med. 2014 Mar 1; 9 (3): 162-8.

BackgroundParacentesis procedure competency is not required for internal medicine or family medicine board certification, and national data show these procedures are increasingly referred to interventional radiology (IR). However, practice patterns at university hospitals are less clear.ObjectiveTo evaluate which specialties perform paracentesis procedures at university hospitals, compare characteristics of patients within each specialty, and evaluate length of stay (LOS) and hospital costs.Design, Setting, PatientsObservational administrative database review of patients with liver disease who underwent paracentesis procedures in hospitals participating in the University HealthSystem Consortium (UHC) Database from January 2010 through December 2012. UHC is an alliance of 120 academic medical centers and their 290 affiliated hospitals.ExposurePatients with liver disease who underwent inpatient paracentesis procedures.MeasurementsWe compared characteristics of patients who underwent paracentesis procedures by physician specialty, modeling the effects of patient characteristics on the likelihood of IR referral. We also analyzed LOS and hospital costs among patients with a >20% predicted probability of IR referral.ResultsThere were 97,577 paracentesis procedures performed during 70,862 hospital stays in 204 hospitals. IR performed 29% of paracenteses versus 49% by medicine and medicine subspecialties including gastroenterology/hepatology. Patients who were female, obese, and those with lower severity of illness were more likely to be referred to IR. Patients with a medicine or gastroenterology/hepatology paracentesis had a similar LOS compared to IR. Hospital costs were an estimated as $1308 less for medicine and $803 less for gastroenterology/hepatology compared to admissions with IR procedures (both P = 0.0001).ConclusionsInternal medicine- and family medicine-trained clinicians frequently perform paracentesis procedures on complex inpatients but are not currently required to be competent in the procedure. Increasing bedside paracentesis procedures may reduce healthcare costs.© 2014 Society of Hospital Medicine.

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