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  • Title: [Aortic valve replacement for aortic stenosis in Iceland 2002-2006: Long term complications and survival].
    Author: Viktorsson SA, Ingvarsdóttir IL, Hreinsson K, Sigurdsson MI, Helgadóttir S, Arnorsson P, Danielsen R, Gudbjartsson T.
    Journal: Laeknabladid; 2011 Nov; 97(11):591-5. PubMed ID: 22071670.
    Abstract:
    OBJECTIVE: To investigate long-term complications and survival following aortic valve replacement (AVR) in patients with aortic stenosis (AS) in Iceland. MATERIAL AND METHODS: Included were 156 patients (average age 71.7 yrs, 64.7% males) that underwent AVR for AS at Landspitali between 2002 and 2006. A mechanical prosthesis was used in 29 patients (18.6%) and a bioprosthesis in 127. Long-term complications and operation-related admissions were registered from hospital and outpatient records until April 1, 2010. Overall survival was estimated and compared with the Icelandic population of the same age and gender. RESULTS: The mean preop. EuroSCORE(st) was 6.9%, the max. transvalvular pressure gradient 74.1 mmHg and the left ventricular ejection fraction (LVEF) (57.2%). At six months following AVR the maximal pressure gradient was 19.8 mmHg (range; 2.5-38). Echocardiography results were not available for 23.6% of the patients 6 months postoperatively. In the follow-up period one in four patients was admitted due to valve-related problems. Re-admission rate was 6.0/100 patient-years (pt-y); most commonly due to cardiac failure (1.7/100 pt-y), emboli (1.6/100 pt-y), hemorrhage (1.6/100 pt-y), endocarditis (0.7/100 pt-y) and myocardial infarction (0.4/100 pt-y). Survival at 1 and 5 year was 89.7% and 78.2%, respectively, making survival comparable to the estimated survival of Icelanders of the same age and gender. CONCLUSIONS: The rate of long-term complications following AVR in Iceland is in line with other studies. The same applies to long-term survival, which was similar to that of the Icelandic population of the same age and gender. Key words: Aortic valve replacement, aortic stenosis, heart surgery, results, long-term complication, survival.
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