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Impact of Valve Culture Positivity on Prognosis in Patients with Infective Endocarditis Who Underwent Valve Surgery

 Jinnam Kim  ;  Jung Ho Kim  ;  Hi Jae Lee  ;  Se Ju Lee  ;  Ki Hyun Lee  ;  Eun Hwa Lee  ;  Yae Jee Baek  ;  Jin Young Ahn  ;  Su Jin Jeong  ;  Nam Su Ku  ;  Seung Hyun Lee  ;  Jun Yong Choi  ;  Joon-Sup Yeom 
 INFECTIOUS DISEASES AND THERAPY, Vol.11(3) : 1253-1265, 2022-06 
Journal Title
Issue Date
Endocarditis ; Heart valves ; Mortality ; Tissue culture.
Introduction: Infective endocarditis (IE) is a severe and fatal infection with high in-hospital and overall mortality rates of approximately up to 30%. Valve culture positivity was associated with in-hospital mortality and postoperative complications; however, few studies have analyzed the relationship between valve cultures and overall mortality over a long observation period. This study aimed to compare the association of valve culture positivity with overall mortality in patients with IE who underwent valve surgery.

Methods: A total of 416 IE patients admitted to a tertiary hospital in South Korea from November 2005 to August 2017 were retrospectively reviewed. A total of 202 IE patients who underwent valve surgery and valve culture were enrolled. The primary endpoint was long-term overall mortality. Kaplan-Meier curve and Cox proportional hazards model were used for survival analysis.

Results: The median follow-up duration was 63 (interquartile range, 38-104) months. Valve cultures were positive in 22 (10.9%) patients. The overall mortality rate was 15.8% (32/202) and was significantly higher in valve culture-positive patients (36.4%, p = 0.011). Positive valve culture [hazard ratio (HR) 3.921, p = 0.002], Charlson Comorbidity Index (HR 1.181, p = 0.004), Coagulase-negative staphylococci (HR 4.233, p = 0.001), new-onset central nervous system complications (HR 3.689, p < 0.001), and new-onset heart failure (HR 4.331, p = 0.001) were significant risk factors for overall mortality.

Conclusions: Valve culture positivity is a significant risk factor for long-term overall mortality in IE patients who underwent valve surgery. The importance of valve culture positivity needs to be re-evaluated, as the valve culture positivity rate increases with increasing early surgical intervention.
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Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Thoracic and Cardiovascular Surgery (흉부외과학교실) > 1. Journal Papers
Yonsei Authors
Ku, Nam Su(구남수) ORCID logo https://orcid.org/0000-0002-9717-4327
Kim, Jung Ho(김정호) ORCID logo https://orcid.org/0000-0002-5033-3482
Kim, Jin Nam(김진남)
Baek, Yae Jee(백예지)
Ahn, Jin Young(안진영) ORCID logo https://orcid.org/0000-0002-3740-2826
Yeom, Joon Sup(염준섭) ORCID logo https://orcid.org/0000-0001-8940-7170
Lee, Ki Hyun(이기현)
Lee, Se Ju(이세주)
Lee, Seung Hyun(이승현) ORCID logo https://orcid.org/0000-0002-0311-6565
Lee, Eun Hwa(이은화)
Jeong, Su Jin(정수진) ORCID logo https://orcid.org/0000-0003-4025-4542
Choi, Jun Yong(최준용) ORCID logo https://orcid.org/0000-0002-2775-3315
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