Low infectivity among asymptomatic patients with a positive severe acute respiratory coronavirus virus 2 (SARS-CoV-2) admission test at a tertiary care center, 2020-2022.

We used a strand-specific RT-qPCR to evaluate viral replication as a surrogate for infectiousness among 242 asymptomatic inpatients with a positive severe acute respiratory coronavirus virus 2 (SARS-CoV-2) admission test. Only 21 patients (9%) had detectable SARS-CoV-2 minus-strand RNA. Because most patients were found to be noninfectious, our findings support the suspension of asymptomatic admission testing.

Quality improvement report: setting up a hospital at night service, limitations of bleep filtering and using an electronic task management system.

The 'hospital at night' concept was developed at a joint conference of the London Deanery and Clinical Staff in 2002, as an issue for education and service provision. At the start of the project, our trust had issues with both the structure of the hospital at night handover and the working practices overnight. The vision was to improve team working out of hours, expedite review of sick patients and reorganise care to seek a reduction in bleeps to medical junior doctors overnight in a way that all patients had access to the right person with the right skills for their needs at the right time. The hospital at night project at our hospital was started in 2019 by a multidisciplinary working group. We tried bleep filtering for 4 months and this was later followed on by the development of an electronic out of hour's task list as part of our hospital at night set-up. The bleep analysis data showed an improved distribution of workload but the process was dependent on individuals. The electronic task management system was built in pre-existing online software. The system helped prioritise and review tasks requested by nurses on medical wards. But it was not without its limitations. We worked with the local information technology (IT) team to improve speed and proposed developing an IT solution that is fast and not desktop based to ensure tasks can be assigned and viewed while on the go. The project was overall a success as it demonstrated positive feedback from junior doctors, improved perception of teamwork and ability to take rest breaks. It also demonstrated a drop in ward-based cardiac arrest rates. The hospital at night project at our trust remains a work in progress, but a lot of positive changes have been delivered.

Scottish outcomes for extra hepatic biliary atresia post-rationalisation of services.

AIMS: To evaluate the outcome of Scottish children with extra hepatic biliary atresia (EHBA) since rationalisation of Kasai services to three English centres in 2002 (The 'Group A' centres). METHODS: All Scottish children with EHBA diagnosed between 2002 and 2009 were identified via the Scottish Society of Paediatric Gastroenterology, Hepatology and Nutrition (SSPGHAN) clinicians. A case-note review was conducted with demographics, presentation and outcome data recorded. These data were compared with historical Scottish data and data published previously by the supraregional liver units. RESULTS: 25 patients were identified, of whom 22 were referred for Kasai in the group A centres, and of whom 19 had a Kasai. 2 year transplant-free survival (TFS) was significantly lower in the SSPGHAN 2002-2009 group than the group A centres in (1) (6/18 (33%) vs 36/57 (63%), p=0.023). CONCLUSIONS: These postrationalisation data are disappointing. The emphasis for care will now focus on improved communication between, primary care, general paediatricians and surgical centres through regional and national managed clinical networks, aiming to improve future outcomes for Scottish children with BA.

Internet treatment for depression: a randomized controlled trial comparing clinician vs. technician assistance.

BACKGROUND: Internet-based cognitive behavioural therapy (iCBT) for depression is effective when guided by a clinician, less so if unguided. QUESTION: Would guidance from a technician be as effective as guidance from a clinician? METHOD: Randomized controlled non-inferiority trial comparing three groups: Clinician-assisted vs. technician-assisted vs. delayed treatment. Community-based volunteers applied to the VirtualClinic (www.virtualclinic.org.au) research program, and 141 participants with major depressive disorder were randomized. Participants in the clinician- and technician-assisted groups received access to an iCBT program for depression comprising 6 online lessons, weekly homework assignments, and weekly supportive contact over a treatment period of 8 weeks. Participants in the clinician-assisted group also received access to a moderated online discussion forum. The main outcome measures were the Beck Depression Inventory (BDI-II) and the Patient Health QUESTIONnaire-9 Item (PHQ-9). Completion rates were high, and at post-treatment, both treatment groups reduced scores on the BDI-II (p<0.001) and PHQ-9 (p<0.001) compared to the delayed treatment group but did not differ from each other. Within group effect sizes on the BDI-II were 1.27 and 1.20 for the clinician- and technician-assisted groups respectively, and on the PHQ-9, were 1.54 and 1.60 respectively. At 4-month follow-up participants in the technician group had made further improvements and had significantly lower scores on the PHQ-9 than those in the clinician group. A total of approximately 60 minutes of clinician or technician time was required per participant during the 8-week treatment program. CONCLUSIONS: Both clinician- and technician-assisted treatment resulted in large effect sizes and clinically significant improvements comparable to those associated with face-to-face treatment, while a delayed treatment control group did not improve. These results provide support for large scale trials to determine the clinical effectiveness and acceptability of technician-assisted iCBT programs for depression. This form of treatment has potential to increase the capacity of existing mental health services. TRIAL REGISTRATION: Australian New Zealand Clinical Trials Registry ACTRN12609000559213.

Endoscopic pyloric suturing to facilitate weight loss: a canine model.

BACKGROUND: More than 66% of adults in United States are overweight or obese. OBJECTIVE: To decrease gastric emptying and cause early and prolonged satiety by endoscopically narrowing the gastric pylorus. DESIGN: Thirteen dogs were randomized into 3 groups (suture, sham, and control). SETTING: Animal facility. INTERVENTIONS: Sutures were placed across the pylorus in the 7 dogs in the suture group by using an endoscopic suturing device. Three sham dogs had endoscopy without suturing, and 3 control dogs did not have any intervention. MAIN OUTCOME MEASUREMENTS: Gastric emptying studies were conducted on all of the dogs by using 13C-octanoic acid breath tests. All dogs were monitored for daily food intake and weight gain/loss. RESULTS: The suture dogs decreased their food consumption by 48% (P < .02), whereas the sham and control dogs showed 9.5% increase (P = .16). The suture dogs lost 12.7% (P = .001) of their initial body weight, whereas the sham and control dogs gained 13.4% (P = .03). There was a delay in gastric emptying between the presuturing baseline and last postsuturing measurement by 30.75% (P = .005) in the suture dogs. In the sham plus control dogs, there was a delay in gastric emptying during the same period by only 6.75% (P = .55). LIMITATIONS: Long-term efficacy of the sutures was not evaluated. CONCLUSIONS: There was a significant weight loss and decreased food consumption along with a significant prolongation of gastric emptying in the suture dogs compared with the sham and control dogs.

Internet treatment for generalized anxiety disorder: a randomized controlled trial comparing clinician vs. technician assistance.

BACKGROUND: Internet-based cognitive behavioural therapy (iCBT) for generalized anxiety disorder (GAD) has been shown to be effective when guided by a clinician. The present study sought to replicate this finding, and determine whether support from a technician is as effective as guidance from a clinician. METHOD: Randomized controlled non-inferiority trial comparing three groups: Clinician-assisted vs. technician-assisted vs. delayed treatment. Community-based volunteers applied to the VirtualClinic (www.virtualclinic.org.au) research program and 150 participants with GAD were randomized. Participants in the clinician- and technician-assisted groups received access to an iCBT program for GAD comprising six online lessons, weekly homework assignments, and weekly supportive contact over a treatment period of 10 weeks. Participants in the clinician-assisted group also received access to a moderated online discussion forum. The main outcome measures were the Penn State Worry Questionnaire (PSWQ) and the Generalized Anxiety Disorder-7 Item (GAD-7). Completion rates were high, and both treatment groups reduced scores on the PSWQ (p<0.001) and GAD-7 (p<0.001) compared to the delayed treatment group, but did not differ from each other. Within group effect sizes on the PSWQ were 1.16 and 1.07 for the clinician- and technician-assisted groups, respectively, and on the GAD-7 were 1.55 and 1.73, respectively. At 3 month follow-up participants in both treatment groups had sustained the gains made at post-treatment. Participants in the clinician-assisted group had made further gains on the PSWQ. Approximately 81 minutes of clinician time and 75 minutes of technician time were required per participant during the 10 week treatment program. CONCLUSIONS: Both clinician- and technician-assisted treatment resulted in large effect sizes and clinically significant improvements comparable to those associated with face-to-face treatment, while a delayed treatment/control group did not improve. These results provide support for large scale trials to determine the clinical effectiveness and acceptability of technician-assisted iCBT programs for GAD. This form of treatment has potential to increase the capacity of existing mental health services. TRIAL REGISTRATION: Australian New Zealand Clinical Trials Registry ACTRN12609000563268.

Unblinding of trial participants to their treatment allocation: lessons from the Prospective Study of Pravastatin in the Elderly at Risk (PROSPER).

BACKGROUND: The gold standard clinical trial design is the double-blind, randomized, controlled trial. No standard practice exists for the "unblinding" of trial participants and no legal obligation is placed on investigators to inform participants of their treatment allocation or study results at the end of a trial. Here we document our experiences of unblinding the 2520 Scottish participants in the Prospective Study of Pravastatin in the Elderly at Risk (PROSPER). METHODS: The objectives of the PROSPER unblinding process were to provide all study participants with their study medication status and on-trial cholesterol levels and to respect the rights of participants not to be unblinded. It was considered imperative by the study executive that the blind was maintained until the presentation and publication of the results. Staff therefore remained "blinded" throughout the unblinding process. Inappropriate contact with the PROSPER participants was avoided by confirming their current vital status and health status. RESULTS: To coincide with the presentation of the PROSPER results, all participants, for whom it was deemed appropriate, were sent a summary of the results and were offered the opportunity to be advised of their treatment allocation and on-trial lipid profiles. The majority of participants opted for telephone unblinding. All primary care physicians who had patients randomised to the study were also sent a summary of the study results and sealed documents detailing the treatment allocation and lipid profiles for each patient. Relocated patients were traced and the information forwarded to their new primary care physicians. CONCLUSION: The dissemination of study results and treatment allocation to study participants is an integral part of the research process and should be included in the design of any clinical trial.