[Cardiac transplantation and donation in Icelandic patients - indications and outcome].

INTRODUCTION: Information on the number, indications and outcome of cardiac transplantations in Icelandic patients is scarce, as is information on the number of hearts donated from Iceland for cardiac transplantation. MATERIAL AND METHODS: A retrospective study on patients receiving heart transplantation from the first procedure in 1988 until March 2019. Clinical information was gathered from Landspitali Transplantation Clinic, patient charts, and information on donated hearts from the Icelandic Donation Registry. Age-standardized incidence of the procedure was calculated, and overall survival (Kaplan-Meier) estimated. Mean follow-up was 10.3 years. RESULTS: Altogether 24 patients (19 males, median age 38 years, range: 4-65 years) underwent cardiac transplantation; that included one re-transplantation, three simultaneous heart- and lung transplants and two heart- and kidney transplants. The transplantations were performed in Gothenburg (n=20), London (n=3) and Copenhagen (n=2). Most common indications were dilated cardiomyopathy (n=10), congenital heart disease (n=4), and viral myocarditis (n=3). Five patients were bridged left ventricular-assist device preoperatively. Overall survival at 1 and 5 years was 91% and 86%, respectively; median survival being 24 years. The incidence of cardiac transplantation was 2.7 heart-TX pmp/year but increased to 4.6 heart-TX pmp/year after 2008 (p=0.01). During the same period 42 hearts were donated from Iceland for transplantation abroad, the first in 2002 and increasing from 0.8 to 3.0 hearts/year during the first and second half of the study-period, respectively. CONCLUSION: Survival of Icelandic cardiac transplant recipients is good and comparable to larger transplant centers overseas. Number of hearts donated from Iceland have increased and currently Iceland donates twice as many hearts at it receives.

Larger head circumference in Icelandic children 0-4 years of age compared to the World Health Organization and Swedish growth charts.

AIM: The World Health Organization (WHO) published universal growth standards for children below five year of age in 2006. Traditionally, Swedish growth references have been used to monitor growth of children in Iceland, but it is not yet known how they compare with these reference charts. METHODS: A total of 2128 longitudinal measurements of length or height, 2132 of weight and 2126 of head circumference between birth and four years of age were collected in 1996-2000 from 199 healthy children (53% boys) recruited at Landspitali University Hospital. Measurements were converted to z-scores using the WHO growth standards and Swedish growth references for further analysis with mixed-effects models. RESULTS: Length or height, weight and in particular head circumference largely exceeded the WHO standards, with average z-scores that fluctuated between 0.5 and 1.5. Likewise, the proportion of children with a z-score larger than 2 SD increased about 10-fold. Icelandic children were longer and heavier than their Swedish peers during the first six months of life, but differences were less pronounced thereafter. CONCLUSION: The growth of Icelandic children deviated significantly from the WHO growth standards. Although more comparable to the Swedish references, significant differences were found, suggesting that a national growth reference would be more appropriate.