Epidemiological and clinical features of Kawasaki disease in Spain over 5 years and risk factors for aneurysm development. (2011-2016): KAWA-RACE study group.

BACKGROUND: Kawasaki disease (KD) is an acute self-limited systemic vasculitis of unknown etiology affecting mainly children less than 5 years of age. Risk factors for cardiac involvement and resistance to treatment are insufficiently studied in non-Japanese children. OBJECTIVE: This study aimed to investigate the epidemiology, clinical features and risk factors for resistance to treatment and coronary artery lesions (CAL) in KD in Spain. METHODS: Retrospective study (May 2011-June 2016) of all patients less than 16 years of age diagnosed with KD included in KAWA-RACE network (84 Spanish hospitals). RESULTS: A total of 625 cases were analyzed, 63% were males, 79% under 5 year-olds and 16.8% younger than 12 months. On echocardiographic examination CAL were the most frequent findings (23%) being ectasia the most common (12%). Coronary aneurysms were diagnosed in 9.6%, reaching 20% in infants under 12 months (p<0.001). A total of 97% of the patients received intravenous immunoglobulin (IVIG) with a median number of days from fever onset to IVIG administration of 7.2. A second dose was given to 15.7% and steroids to 14.5% patients. Only 1.4% patients received infliximab. No deaths were reported. A multivariate analysis identified anemia, hypoalbuminemia, hyponatremia, higher creatinine and procalcitonin as independent risk factors for treatment failure and length under 103 cm, hemoglobin < 10.2 mg/dL, platelets > 900,000 cells/mm3, maximum temperature < 39.5°C, total duration of fever > 10 days and fever before treatment ≥ 8 days as independent risk factors for developing coronary aneurysms. CONCLUSIONS: In our population, children under 12 months develop coronary aneurysms more frequently and children with KD with anemia and leukocytosis have high risk of cardiac involvement. Adding steroids early should be considered in those patients, especially if the treatment is not started before 8 days of fever. A score applicable to non-Japanese children able to predict the risk of aneurysm development and IVIG resistance is necessary.

Becoming baby-friendly in Spain: a quality-improvement process.

AIM: To describe the implementation process and effect of a quality-improvement intervention aimed at achieving compliance with the Baby-friendly Hospital Initiative (BFHI). METHODS: We conducted a prospective study of the development and evaluation of a quality-improvement intervention at the Yecla Hospital, Spain. A random sample of 1273 infants born in the hospital was followed up in primary care centres between 1997 and 2005. The study interventions were process-oriented training, audit and feedback, quality-improvement cycles and provision of breastfeeding support resources. The main outcome measures were changes in compliance with the Global Criteria for the BFHI and breastfeeding rates before, during and after the intervention. RESULTS: Compliance with the Global Criteria increased progressively, and in 2004 all criteria were met. The median duration of breastfeeding went up gradually from the start of the intervention. The likelihood of being breastfed at different ages among infants born in 2005 was between 45% [odds ratio (OR) 0.55; 95% confidence interval (CI) 0.38-0.79] and 86% (OR 0.14; 95% CI 0.09-0.20) higher than among infants born in 1997. CONCLUSION: Quality-improvement interventions based on participation, training, audit and feedback of information, and provision of resources are useful for the implementation of the BFHI, which is associated with a significant increase in breastfeeding rates.