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Independent temporal external validation of the improving partial risk adjustment in surgery model (PRAIS-2) to predict 30-day mortality in patients undergoing paediatric cardiac surgery.

Retrospective analysis of prospectively collected data.

Paediatric cardiac surgery.

PRAIS-2 validation was carried out using a two temporally different single centre (Bristol, UK) cohorts Cohort 1 surgery undertaken from April 2004 to March 2009 and Cohort 2 from April 2015 to July 2019. For each subject PRAIS-2 score was calculated according to the original formula.

A total of 1352 (2004-2009) and 1197 (2015-2019) paediatric cardiac surgical procedures were included in the Cohort 1 and Cohort 2, respectively (median age at the procedure 6.3 and 7.1 months).

PRAIS-2 performance was assessed in terms of discrimination by means of ROC (receiver operating characteristic) curve analysis and calibration by using the calibration belt method.

PRAIS-2 score showed excellent discrimination for both cohorts (AUC 0.72 (95on-elective procedures. Our results support a wider adoption of PRAIS-2 score in the clinical practice.
Adolescent idiopathic scoliosis (AIS) is a three-dimensional deformity of the spine. Brace treatment is effective for eligible patients with AIS and the effectiveness is significantly correlated with the average brace-wear time per day. Three-dimensional (3D) printing technology is a recent advancement that offers unique opportunities for biomedical applications, and customisation of scoliosis braces might lead to greater patient satisfaction and improved compliance. We present here the design of a randomised controlled trial on the clinical effectiveness of 3D-printed braces versus thoracolumbosacral orthoses (TLSO) for patients with AIS.

Patients with AIS (age 10-16 years) with Risser sign 0-II, Cobb angle of main curve of 20°-40°, premenarchal or no more than 1-year postmenarchal (for women), and no history of treatment are eligible, unless they are unable to tolerate the treatment or refuse participation. A total of 88 patients will be randomised into either the 3D group or TLSO group on a 11 basis. Participants in the 3D group will choose between a 3D-printed brace and TLSO, according to the Zelen's design of the trial. Primary outcome measures will include the average brace-wear time per day, health-related quality of life and Cobb angle progression of the primary curve. Secondary outcome measures will include immediate in-brace correction of Cobb angle of the primary curve, rate of conversion to surgery and incidence of any adverse events. This study is designed as a single-centre, two-arm, superiority and open-label randomised controlled trial. The sample size is calculated with reference to the preliminary study and based on the sample size calculation formula.

This study was approved by the Peking University Third Hospital Medicine Science Research Ethics Committee (No 2019-017-02). Results of the trial will be submitted for publication in a peer-reviewed journal and as conference presentations.

ChiCTR1900027379, pre-results.
ChiCTR1900027379, pre-results.
Behavioural parent training (BPT) is a well-established treatment for children with attention-deficit/hyperactivity disorder (ADHD). BPT is based on the hypothesis that improvements in parenting are mediators of improvements in children's behaviours. However, meta-analyses show considerate heterogeneity in effects of BPT on child outcomes, and meta-analyses on parenting outcomes are scarce. Also, few studies have investigated parenting factors as mediators of child outcomes. This study aims to examine the effects and moderators of BPT on parenting outcomes and whether improvements in parenting mediate amelioration of behaviour and impairment in children with ADHD.

We will conduct an individual participant data meta-analysis (IPDMA), making use of individual data of existing trials, and giving the opportunity for highly powered moderator analyses. This IPDMA will be performed by the Psychosocial ADHD INTervention (PAINT) collaboration. We will include randomised controlled trials of BPT, for individuals wiDutch academic workspace ADHD.

CRD42017069877.
CRD42017069877.
Ambulatory surgery lowers hospitalisation costs, shortens the time to return to work but requires caution regarding socioenvironmental risk factors for complications and rehospitalisation.

This was a single-centre prospective cross-sectional observational study conducted in a university hospital centrein January 2017. The primary objective was to assess the rate of conversion from ambulatory surgery to conventional hospitalisation or emergency department visit within 30 days following discharge from ambulatory unit. Secondary objectives were to describe the socioenvironmental characteristics of outpatients and to identify risk factors for severe postoperative complications.

598 outpatients were included. The most represented surgical specialties were ophthalmology (23.5%), gynaecology (19%) and orthopaedics (17.7%). Patients' mean age was 50.8 years (SD, 19.8) and the male/female sex ratio was 0.68. There were 22 (3.68%, 95% CI 2.32% to 5.52%) severe complications, including 11 (1.84%, 95% CI 0.92% to 3.27%) conversions to conventional hospitalisation and 11 (1.84%) conversions to emergency department visit, 3 of which led to readmission. EGFR inhibitor Regarding socioenvironmental characteristics, 116 outpatients (19.7%) lived alone but were not isolated and 15 (2.6%) lived alone and were socially isolated. Following ambulatory surgery, 9 outpatients (1.6%) returned home on foot, 20 (3.4%) by public transportation and 8 (1.4%) drove home; 133 outpatients (13.7%) were alone the first night following surgery. Severe complication rates were not significantly different according to socioenvironmental subgroups.

In our study, the prevalence of severe complications was low, conforming to the literature. The study was underpowered to estimate the effect of socioenvironmental variables.
In our study, the prevalence of severe complications was low, conforming to the literature. The study was underpowered to estimate the effect of socioenvironmental variables.
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