Combination of prednisolone and cyclosporine A as third-line therapy for refractory Kawasaki disease.

BACKGROUND: The selection of drugs as third-line therapy for patients with Kawasaki disease (KD) who are resistant to second-line therapy remains controversial. METHODS: We reviewed the medical records of 354 patients (216 males/137 females) with KD who were treated in our department from July 2003 to January 2016. The age range was 1 month to 10 years, and the median age was 2 years and 1 month. A combination of 2 g/kg intravenous immunoglobulin (IVIG) plus 30 mg/kg of aspirin was used as first-line therapy. Patients who were refractory to the first-line therapy were administered 2 mg/kg of prednisolone (PSL) in combination with IVIG. Five patients who were refractory to the second-line therapy were treated with cyclosporine A (CsA) combined with PSL as the third-line therapy. RESULTS: All five patients immediately responded to the third-line therapy. One of the five patients showed a transient dilatation of the coronary artery that regressed to its normal size by the 60th day of illness. CONCLUSIONS: We suggest that the combination of CsA and steroids might be a promising therapeutic strategy for refractory KD.

Rotavirus vaccine and health-care utilization for rotavirus gastroenteritis in Tsu City, Japan.

BACKGROUND: Rotavirus vaccines were introduced in Japan in November 2011. We evaluated the subsequent reduction of the health-care burden of rotavirus gastroenteritis. METHODS: We conducted active surveillance for rotavirus gastroenteritis among children under 5 years old before and after the vaccine introduction. We surveyed hospitalization rates for rotavirus gastroenteritis in children in Tsu City, Mie Prefecture, Japan, from 2007 to 2015 and surveyed the number of outpatient visits at a Tsu City clinic from 2010 to 2015. Stool samples were obtained for rotavirus testing and genotype investigation. We assessed rotavirus vaccine coverage for infants living in Tsu City. RESULTS: In the pre-vaccine years (2007-2011), hospitalization rates for rotavirus gastroenteritis in children under 5 years old were 5.5, 4.3, 3.1 and 3.9 cases per 1000 person-years, respectively. In the post-vaccine years (2011-2015), the rates were 3.0, 3.5, 0.8 and 0.6 cases per 1000 person-years, respectively. The hospitalization rate decreased significantly in the 2013-2014 and 2014-2015 seasons compared to the average of the seasons before vaccine introduction (P < 0.0001). In one pre-vaccine year (2010-2011), the number of outpatient visits due to the rotavirus infection was 66. In the post-vaccine years (2011-2015), the numbers for each season was 23, 23, 7 and 5, respectively. The most dominant rotavirus genotype shifted from G3P[8] to G1P[8] and to G2P[4]. The coverage of one dose of rotavirus vaccine in Tsu City was 56.5% in 2014. CONCLUSION: After the vaccine introduction, the hospitalization rates and outpatient visits for rotavirus gastroenteritis greatly decreased.