title: [Aortic valve replacement for aortic stenosis in Iceland 2002-2006: Long term complications and survival].
abstract: To investigate long-term complications and survival following aortic valve replacement (AVR) in patients with aortic stenosis (AS) in Iceland.
  
  
  
  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.
  
  
  
  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.
  
  
  
  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.
authors.forename: Sindri Aron
authors.initials: SA
authors.lastname: Viktorsson
authors.forename: Inga Lára
authors.initials: IL
authors.lastname: Ingvarsdóttir
authors.forename: Kári
authors.initials: K
authors.lastname: Hreinsson
authors.forename: Martin Ingi
authors.initials: MI
authors.lastname: Sigurdsson
authors.forename: Sólveig
authors.initials: S
authors.lastname: Helgadóttir
authors.forename: Pórarinn
authors.initials: P
authors.lastname: Arnorsson
authors.forename: Ragnar
authors.initials: R
authors.lastname: Danielsen
authors.forename: Tómas
authors.initials: T
authors.lastname: Gudbjartsson
mesh_terms: D000368:Aged; D001024:Aortic Valve Stenosis / Q000175:diagnosis / Q000401:mortality / Q000601:surgery*; D001705:Bioprosthesis; D005260:Female; D006350:Heart Valve Prosthesis; D019918:Heart Valve Prosthesis Implantation / Q000009:adverse effects* / Q000295:instrumentation / Q000401:mortality*; D006801:Humans; D007055:Iceland / Q000453:epidemiology; D016015:Logistic Models; D008297:Male; D010359:Patient Readmission; D018570:Risk Assessment; D012307:Risk Factors; D015996:Survival Rate; D013997:Time Factors; D016896:Treatment Outcome