Author + information
- Karthik Murugiah,
- Abhishek Deshmukh,
- Navdeep Gupta,
- Sadip Pant,
- Apurva Badheka,
- Kaustubh Dabhadkar and
- Gagan Kumar
Epidemiology of Infective endocarditis (IE) has changed over the years due to changes in life expectancy, risk factors, IE prophylaxis guidelines, improved diagnostic tools and antibiotic treatment. There is a limited data on how these changes translate into trends in IE outcomes. We studied trends in IE hospitalizations in the United States over the last decade.
Nationwide inpatient sample (NIS) database was used to identify patients ≥ 18 years with a discharge diagnosis of IE from 2000–2008 using the ICD–9–CM code 421.x. Data was divided into periods of 3 years each to study trends. Outcomes were measured in terms of receipt of valve surgery, mortality, length of stay (LOS) and disposition. Trends were analyzed for a variety of demographic attributes and clinical attributes.
There were 316,715 discharges with IE from 2000–2008. There was a 13% decline in in–hospital mortality from 2000 to 2008 (p<0.001). Logistic regression analysis showed the following factors predicted increase mortality: age >65 (OR: 1.52, 95% CI: 1.42–1.62), male gender (OR: 1.09; 95% CI: 1.04–1.14), African–American race (OR: 1.22, 95% 1.13–1.31), teaching status of hospital (OR: 1.23, 95% CI 1.17–1.29), urban location (OR: 1.51, 95% CI: 1.36–1.68), CHF (OR: 1.53, 95% CI: 1.46–1.61), ESRD (OR: 1.67, 95% CI: 1.56–1.78), transplant status (OR: 1.48, 95% CI:1.23–1.77) and staphylococcal etiology (OR: 1.6, 95% CI: 1.48–1.62). Diagnosis of malignancy or HIV had no impact on mortality. There was a decrease in percentage of patients receiving valve surgeries (either valve repair or replacement) but it did not reach significance (p–value 0.56). The LOS remained unchanged from 2000 to 2008 (mean: 15.1±.2 days). There was an increasing trend of discharges to nursing facilities (8% rise from 2000–2008, p–value <0.001 and decrease in discharges to home (20% decline from 2000–2008, p–value <0.001).
Overall, there has been a modest improvement in the outcome of IE hospitalization over last decade in terms of mortality. There was a decreasing trend toward surgical intervention in IE.
Poster Sessions, Expo North
Monday, March 11, 2013, 9:45 a.m.–10:30 a.m.
Session Title: Optimal Management of Tricuspid Regurgitation and Trends in the Treatment of Endocarditis
Abstract Category: 32. Valvular Heart Disease: Therapy
Presentation Number: 1284–77
- 2013 American College of Cardiology Foundation