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ENGLISH SUMMARY
Endocarditis in lceland 2000-2009, a national survey incidence, microbiology and prognosis
Tryggvadottir EB', Agnarsson UT’ 2, Sverrisson JT3, Thorsteinsson SB2, Högnason JV2 Thorgeirsson G2
Introduction: The objective of this study was to analyze the incidence,
clinical features, microbiology and prognosis of patients with infective
endocarditis (IE) in lceland, and to compare the results with a previous
study made in lceland 1976-85.
Material and Methods: A retrospective study including all patients
diagnosed with IE in lceland 2000-2009. Information was obtained from
medical records.
Results: A total of 88 cases (71 % men, mean age 59 years) were diagno-
sed and the incidence of IE was calculated 2.97/100.000 person-years.
The mitral valve was infected in 35 patients (40%), aortic in 27 (31%) and
tricuspid in 9 (10%). In 19 cases a prosthetic valve was infected (22%),
one early (<60 days from procedure) and 18 late. Sixteen patients were
intravenous drug users. The most common causative organisms were
streptococcus (33%), staphylococcus (25%) and enterococcus (16%).
Surgical intervention was performed in 16 cases (18%). One and five year
survival was 77% and 57% respectively.
Conclusion: The incidence of IE in lceland is still low compared to other
countries. The clinical profile of the disease has changed since 1976-
85, patients with prosthetic heart valves and intravenous drug users
were more prominent than before. The microbiological spectrum has
not changed much, streptococcus is still the most common pathogen,
contrary to what is seen in other industrial countries where S. aureus
is more frequent. Death rate is lower than before and one year survival
good compared to other reports.
Key words: Endocarditis, heart valve, prosthetic valve, iv. drug use, vaive replacement surgery, incidence, survival.
Correspondence: Elin Björk Tryggvadóttir, ebtVShi.is
'Faculty of Medicine, 2University of lceland, Reykjavik, lceland, "Akureyri Hospital, Akureyri, lceland.
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