Nationwide trends in abdominal aortic aneurysm repair and use of endovascular repair in the emergency setting

Prasoon P. Mohan, Michael Rozenfeld, Richard A. Kane, Joseph D. Calandra, Michael H. Hamblin

Research output: Contribution to journalArticlepeer-review

19 Scopus citations


Purpose: To analyze nationwide trends in abdominal aortic aneurysm (AAA) repair and the use of endovascular abdominal aortic aneurysm repair (EVAR) in the emergency setting. Materials and Methods: Data were obtained from the Nationwide Inpatient Sample (NIS) using the International Classification of Diseases, Ninth RevisionClinical Modification (ICD-9-CM) codes for open and endovascular repairs from 20012009. Trends in outcome parameters and hospital charges were compared. Results: The number of emergency EVAR procedures increased from 382 in 2001 to 1,247 in 2009 (P <.001). During the study period, length of hospital stay associated with total number of EVAR procedures decreased from 3.8 days to 3.4 days (P <.05), and the in-hospital mortality decreased from 2.4% to 2% (P =.32). From 20012009, mean hospital charges associated with EVAR increased from $50,630 to $91,401 (74% increase), whereas charges associated with open repairs increased from $54,578 to $128,925 (136% increase). The proportion of patients needing rehabilitation or nursing home placement after EVAR increased from 5.8% to 7.7% (P <.01), and need for home health increased from 6.9% to 10.5% (P <.01). Conclusions: There was a significant increase in the number of emergency EVAR procedures during the study period; however, the overall in-hospital mortality associated with EVAR remained unchanged, and the length of hospital stay showed a decreasing trend. The total hospital charges for EVAR were lower than the charges for open abdominal aneurysm repair throughout the study period; the difference in charges between the procedures showed a significant increasing trend with time.

Original languageEnglish (US)
Pages (from-to)338-344
Number of pages7
JournalJournal of Vascular and Interventional Radiology
Issue number3
StatePublished - Mar 2012
Externally publishedYes

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Cardiology and Cardiovascular Medicine


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