Estimation of Greenland surface mass balance using positive degree-days method and energy balance model

The Tenth Symposium on Polar Science/Ordinary sessions: [OM] Polar Meteorology and Glaciology, Wed. 4 Dec. / Entrance Hall (1st floor) , National Institute of Polar Researc

Antarctic ice sheet modeling of the Last Glacial Maximum and the last deglaciation using the three-dimensional ice sheet model SICOPOLIS

The Tenth Symposium on Polar Science/Ordinary sessions: [OM] Polar Meteorology and Glaciology, Wed. 4 Dec. / Entrance Hall (1st floor) , National Institute of Polar Researc

Total root remodelling by the Sleeve technique for aortic regurgitation in patients with repaired tetralogy of Fallot

We report the case of a 15-year-old male patient who had developed aortic regurgitation primarily because of aortic annulus dilatation late after definitive repair of tetralogy of Fallot. Valsalva sinus dilatation was not remarkable enough for root replacement. For the purpose of total root remodelling, the Sleeve procedure was employed. This procedure not only reduced the root diameters but also augmented commissure heights. With concomitant non-coronary cusp plication, aortic regurgitation was effectively controlled. Thus, the Sleeve technique may be a preferable option for patients who develop aortic regurgitation, due to dilatation of the annulus or sinotubular junction without significant dilatation of the sinus of Valsalva, after congenital heart surgery

ISMIP6 future projections for Greenland and Antarctica with the ice sheet model SICOPOLIS

The Tenth Symposium on Polar Science/Ordinary sessions: [OM] Polar Meteorology and Glaciology, Wed. 4 Dec. / 2F Auditorium, National Institute of Polar Researc

Risk factors of recurrent tricuspid regurgitation after valve repair with three-dimensional ring

Objective: The purpose of this study was to investigate the results of tricuspid valve (TV) repair with three-dimensional ring (3DR) and risk factors of recurrent tricuspid regurgitation (TR).Methods: We retrospectively investigated 171 patients who underwent TV repair with a 3DR for TR from 2007 to 2016 at our institution. The patients were divided into the non-Recurrence group (<2+ TR) and Recurrence group (≥2+ TR), and compared to identify the cause of recurrent TR. The mean follow-up period was 58±35 months.Results: The preoperative TR grade was 3.0±0.8. A total of 22 patients had at least ≥2+ TR in the follow-up period. Freedom from ≥2+ TR and re-operation at 5 years were 83.6±3.3% and 97.9±2.1%. Comparison of the non-Recurrence and Recurrence groups revealed significant differences in the preoperative TR grade (2.9±0.8 and 3.4±0.6, p=0.008), proportion of the patients with left ventricular ejection fraction (LVEF) <40% (9% and 32%, p=0.003) and right ventricular end-systolic dimension (RVDs, 22.8±7.1 mm and 31.1±12.3 mm, P=0.001). In the multivariate analysis, LVEF <40% (hazard ratio: 12.65, 95% confidence interval: 2.66–60.18; p=0.002) and RVDs (hazard ratio: 1.08, 95% confidence interval: 1.02–1.14; p=0.02) were identified as risk factors for recurrent TR.Conclusion: Our results of TV repair with 3DR were of satisfactory. However, patients with preoperative lower LVEF and larger RVDs were identified at risk of recurrent TR. This result suggests the limitation to use of 3DR alone for TV repair and need for additional procedure

Modelled response of the volume and thickness of the Antarctic ice sheets to transient retreat of the grounding lines

第3回極域科学シンポジウム/第35回極域気水圏シンポジウム 11月29日（木） 国立国語研究所 ２階ロビ

Quality of life following aortic valve replacement in octogenarians

【Purpose】We aimed to evaluate the outcomes of and the quality of life (QOL) after conventional aortic valve replacement (AVR) amongst octogenarians.【Methods】We enrolled 48 patients aged ≥80 years who underwent conventional aortic valve replacement between May 1999 and November 2012. Patient conditions were assessed before surgery, at 6 and 12 months after surgery, and during the late period regarding the need for nursing care, degree of independent living, and living willingness.【Results】The follow-up rate was 100% with 45.6 ± 41.3 months follow-up. Two patients (4%) died during hospitalization and 11 (23%) died during the follow-up period. The 1-, 5-, and 10-year survival rates were 84.9, 76.9, and 39.6%, respectively. During the late period, of 35 surviving patients, 31 (88%) were living at home. The degree of independent living score decreased after surgery. However, scores of the need for nursing care and living willingness remained preoperative level.【Conclusions】QOL following conventional aortic valve replacement for elderly patients aged ≥80 years who showed independence in activities of daily living (ADL) before surgery were satisfactory. Therefore, aortic valve replacement could be a viable option for elderly patients aged ≥80 years after accounting for preoperative ADL levels

The exacerbation risk prediction by fractional exhaled nitric oxide in younger and elder children with bronchial asthma

The usefulness of the Fractional exhaled nitric oxide (FeNO) measurements for asthma exacerbation risk prediction in asthmatic children is controversial. Fifty-seven asthmatic children who were regularly treated and had previously been stable for at least 3 months were enrolled. The asthma excerbations risk prediction by the FeNO levels and age contribution on it were investigated. As analyzed all the patients, FeNO cut off value for the significant risk of asthma exacerbation was 36.9 ppb (risk odds was 5.1 [95% C.I., 1.8 to 15.0], chi square valve = 9.0, p=0.0028). However, sensitivity and specificity were not adequate for predicting asthma exacerbation (Sensitivity, 77.8%; Specificity, 59.9%; Area under the curve [AUC], 0.674). These parameters were improved only when 6-10 year old children were assessed (FeNO threshold=39.9 ppb, risk odds=10.2 [3.1 to 33.1], chi square valve 14.8, p=0.0001); Sensitivity, 80.8%; Specificity, 71.8%; AUC, 0.758). High value of FeNO is a risk factor for the asthma exacerbation, and FeNO measurement may be more useful for asthma control in younger children than elder asthmatic children