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Effects of lithium on suicide and suicidal behaviour: a systematic review and meta-analysis of randomised trials

Epidemiol Psychiatr Sci. 2022 Sep 16;31:e65. doi: 10.1017/S204579602200049X.

ABSTRACT

AIMS: Lithium has long been believed to reduce the risk of suicide and suicidal behaviour in people with mood disorders. Previous meta-analyses appeared to support this belief, but excluded relevant data due to the difficulty of conducting meta-analysis of rare events. The current study is an updated systematic review and meta-analysis that includes all eligible data, and evaluates suicide, non-fatal suicidal behaviour (including suicidal ideation) and suicide attempts.

METHODS: We searched PubMed, PsycINFO and Embase and some trial registers. We included all randomised trials comparing lithium and placebo or treatment as usual in mood disorders published after 2000, to ensure suicide was reliably reported. Trial quality was assessed using the Cochrane Risk of Bias tool. Pooled data were analysed using Fisher’s Exact test. In addition, meta-analysis was conducted using various methods, prioritizing the Exact method. All trials were included in the analysis of suicide initially, regardless of whether they reported on suicide or not. We conducted a sensitivity analysis with trials that specifically reported on suicides and one that included trials published before 2000. Pre-specified subgroup analyses were performed involving suicide prevention trials, trials excluding people already taking lithium, trials involving people with bipolar disorder exclusively and those involving people with mixed affective diagnoses. Non-fatal suicidal behaviour and suicide attempts were analysed using the same methods, but only trials that reported these outcomes were included. PROSPERO registration: CRD42021265809.

RESULTS: Twelve eligible studies involving 2578 participants were included. The pooled suicide rate was 0.2% for people randomised to lithium and 0.4% with placebo or treatment as usual, which was not a statistically significant difference; odds ratio (OR) = 0.41 (95% confidence interval 0.03-2.49), p = 0.45. Meta-analysis using the Exact method produced an OR of 0.42 (95% confidence interval 0.01-4.5). The result was not substantially different when restricted to 11 trials that explicitly reported suicides and remained statistically non-significant when including 15 trials published before 2000 (mostly in the 1970s). There were no significant differences in any subgroup analysis. There was no difference in rates of all non-fatal suicidal behaviour in seven trials that reported this outcome, or in five trials that reported suicide attempts specifically. Meta-analyses using other methods also revealed no statistically significant differences.

CONCLUSIONS: Evidence from randomised trials is inconclusive and does not support the idea that lithium prevents suicide or suicidal behaviour.

PMID:36111461 | DOI:10.1017/S204579602200049X

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Extending outbreak investigation with machine learning and graph theory: Benefits of new tools with application to a nosocomial outbreak of a multidrug-resistant organism

Infect Control Hosp Epidemiol. 2022 Sep 16:1-7. doi: 10.1017/ice.2022.66. Online ahead of print.

ABSTRACT

OBJECTIVE: From January 1, 2018, until July 31, 2020, our hospital network experienced an outbreak of vancomycin-resistant enterococci (VRE). The goal of our study was to improve existing processes by applying machine-learning and graph-theoretical methods to a nosocomial outbreak investigation.

METHODS: We assembled medical records generated during the first 2 years of the outbreak period (January 2018 through December 2019). We identified risk factors for VRE colonization using standard statistical methods, and we extended these with a decision-tree machine-learning approach. We then elicited possible transmission pathways by detecting commonalities between VRE cases using a graph theoretical network analysis approach.

RESULTS: We compared 560 VRE patients to 86,684 controls. Logistic models revealed predictors of VRE colonization as age (aOR, 1.4 (per 10 years), with 95% confidence interval [CI], 1.3-1.5; P < .001), ICU admission during stay (aOR, 1.5; 95% CI, 1.2-1.9; P < .001), Charlson comorbidity score (aOR, 1.1; 95% CI, 1.1-1.2; P < .001), the number of different prescribed antibiotics (aOR, 1.6; 95% CI, 1.5-1.7; P < .001), and the number of rooms the patient stayed in during their hospitalization(s) (aOR, 1.1; 95% CI, 1.1-1.2; P < .001). The decision-tree machine-learning method confirmed these findings. Graph network analysis established 3 main pathways by which the VRE cases were connected: healthcare personnel, medical devices, and patient rooms.

CONCLUSIONS: We identified risk factors for being a VRE carrier, along with 3 important links with VRE (healthcare personnel, medical devices, patient rooms). Data science is likely to provide a better understanding of outbreaks, but interpretations require data maturity, and potential confounding factors must be considered.

PMID:36111457 | DOI:10.1017/ice.2022.66

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Telemedicine Use Among Patients With Metastatic Breast Cancer During the COVID-19 Pandemic: Differences by Race, Age and Region

Pharmacoepidemiol Drug Saf. 2022 Sep 16. doi: 10.1002/pds.5541. Online ahead of print.

ABSTRACT

PURPOSE: Our objective was to describe differences in telemedicine use among women with metastatic breast cancer (mBC) by race, age and geographic region.

METHODS: This was a retrospective cohort study of women with recurrent or de novo mBC treated in U.S. community cancer practices that initiated a new line of therapy between March 2020 and February 2021. Multivariable modified Poisson regression models were used to calculate adjusted rate ratios (OR) and robust 95% confidence intervals (CI) associated with telemedicine visits within 90 days of therapy initiation.

RESULTS: Overall, among 3412 women with mBC, 751 (22%) patients had telemedicine visits following therapy initiation, with lower risks observed among older women (<50 years: 24%; 50-64 years: 22%; 65-74 years: 21%; ≥75 years: 20%). Greater telemedicine use was observed among Asian women (35%) compared to White (21%), Black (18%) and Hispanic (21%) women. Fewer telemedicine visits occurred in Southern (12%) and Midwestern (17%) states versus Northeastern (37%) or Western (36%) states. In multivariable models, women ages ≥75 years had significantly lower risks of telemedicine visits (RR=0.76, 95% CI 0.62-0.95) compared to ages <50 years. Compared to patients in Northeastern states, women in Midwestern (RR=0.46, 95% CI 0.37-0.57) and Southern (RR=0.31, 95% CI 0.26-0.37) states had significantly lower risks of telemedicine visits; but not women in Western states (RR=0.96, 95% CI 0.83-1.12). No statistically significant differences in telemedicine use were found between racial groups in overall multivariable models.

CONCLUSIONS: In this study of community cancer practices, older mBC patients and those living in Southern and Midwestern states were less likely to have telemedicine visits. Preferences for communication and delivery of care may have implications for measurement of exposures and endpoints in pharmacoepidemiologic studies of cancer patients.

PMID:36111444 | DOI:10.1002/pds.5541

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A phase IV clinical trial of gastrointestinal motility in adult patients with migraine before and after initiation of a calcitonin gene-related peptide ligand (galcanezumab) or receptor (erenumab) antagonist

Headache. 2022 Sep 16. doi: 10.1111/head.14390. Online ahead of print.

ABSTRACT

OBJECTIVE: To compare effects of an initial dose of calcitonin gene-related peptide (CGRP) monoclonal antibody (mAb) antagonists on gastrointestinal (GI) motility in patients with migraine and to explore if the mechanistic difference contributes to GI adverse events (AEs).

BACKGROUND: Different frequencies of constipation have been observed between CGRP mAbs that target the ligand (galcanezumab [GMB]) or receptor (erenumab [ERE]).

METHODS: Patients (n = 65) with migraine without significant GI symptoms were enrolled in a multi-center, single-blind phase IV clinical trial (NCT04294147) and randomized 1:1 to receive GMB (240 mg; n = 33) or ERE (140 mg; n = 32). GI whole and regional transit times were assessed using a wireless motility capsule 1 week before and 2 weeks after mAb administration. The primary endpoint was change from baseline in colonic transit time (CTT) within each treatment group. Other measures included GI Symptom Rating Scale (GSRS), Bristol Stool Form Scale (BSFS), and spontaneous bowel movement (SBM) evaluation. AEs were monitored throughout the study.

RESULTS: Baseline characteristics indicated significant GI transit time variability with minimal GI reported symptoms. While not statistically significant, a numerical mean increase in CTT was observed in ERE patients (n = 28, mean [SD] at baseline: 33.8 [29.4] h; least square [LS] mean [SE] change: 5.8 [5.7] h, 95% confidence interval [CI] -5.7 to 17.2, p = 0.320), while GMB decreased CTT (n = 31, mean [SD] at baseline: 29.3 [24.5] h; LS mean [SE] change: -5.4 [5.4] h, 95% CI -16.2 to 5.5, p = 0.328) compared to baseline. No meaningful changes were observed in other regional transit times. ERE significantly reduced BSFS (LS mean [SE] score -0.5 [0.2], p = 0.004) and SBM (LS mean [SE] -1.2 [0.5], p = 0.0120), and increased GSRS-constipation compared to baseline (LS mean [SE] score 0.3 [0.1], p = 0.016). GMB increased GSRS-constipation (LS mean [SE] score 0.4 [0.1], p = 0.002). There were no discontinuations due to or serious AEs. A higher percentage of treatment-emergent AEs were reported with ERE than GMB (ERE: nine of 32 [28.1%] versus GMB: three of 33 [9.1%]), with constipation the most frequently reported (ERE: five of 32 [15.6%] versus GMB one of 33 [3.0%]).

CONCLUSION: While the primary endpoint of this study was not met, secondary and tertiary endpoints support a within- and between-treatment change in GI effects suggesting possible mechanistic differences between ligand (GMB) and receptor (ERE) antagonism.

PMID:36111429 | DOI:10.1111/head.14390

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Clinical course of COPD in patients with Arg16Gly (rs1042713) polymorphism of ADRB2 gene

Monaldi Arch Chest Dis. 2022 Sep 13. doi: 10.4081/monaldi.2022.2314. Online ahead of print.

ABSTRACT

The ADBR2 gene has been studied for its possible relationship with the development and clinical course of chronic obstructive pulmonary disease (COPD), including response to beta-2 agonists, with existing data being contentious on the subject. So, the purpose of this study was to look into the potential impact of the arginine-16-glycine (Arg16Gly) polymorphism on the clinical course and drug utilization in COPD patients. Data show that patients with Arg16Arg have a lower number of hospital admissions for exacerbations (p=0.048), but only in the total number of exacerbations, including those treated out-patients (p=0.086). Each glycine (Gly) copy was associated with a higher number of exacerbations (OR: 0.25; 95% CI: 0.00-055; p=0.048). The number of exacerbations after LABA/LAMA treatment was similar across groups, indicating that all ADRB2 variants responded well to the treatment. Furthermore, there were no statistically significant differences in mMRC and CAT values across all study visits. Interestingly, groups differed in their use of antibiotics (AB) at all visits, with Arg16Arg being associated with the least amount of AB use. There was also a link discovered between clycine copies and increased use of glucocorticoids. As a result, Arg16Gly is involved in the clinical course of COPD as well as the utilization of drug groups. Based on the findings, we can speculate that the cross-talk between the ADRB2 gene and the corticosteroid receptor is altered in patients with the Gly16Gly genotype.

PMID:36111412 | DOI:10.4081/monaldi.2022.2314

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Relapsing low-flow alarms due to suboptimal alignment of the left ventricular assist device inflow cannula

Eur J Cardiothorac Surg. 2022 Sep 2;62(4):ezac415. doi: 10.1093/ejcts/ezac415.

ABSTRACT

OBJECTIVES: This retrospective study investigated the correlation between the angular position of the left ventricular assist device (LVAD) inflow cannula and relapsing low-flow alarms.

METHODS: Medical charts were reviewed of all patients with HeartMate 3 LVAD support for relapsing low-flow alarms. A standardized protocol was created to measure the angular position with a contrast-enhanced computed tomography scan. Statistics were done using a gamma frailty model with a constant rate function.

RESULTS: For this analysis, 48 LVAD-supported patients were included. The majority of the patients were male (79%) with a median age of 57 years and a median follow-up of 30 months (interquartile range: 19-41). Low-flow alarm(s) were experienced in 30 (63%) patients. Angulation towards the septal-lateral plane showed a significant increase in low-flow alarms over time with a constant rate function of 0.031 increase in low-flow alarms per month of follow-up per increasing degree of angulation (P = 0.048). When dividing this group using an optimal cut-off point, a significant increase in low-flow alarms was observed when the septal-lateral angulation was 28° or more (P = 0.001). Anterior-posterior and maximal inflow cannula angulation did not show a significant difference.

CONCLUSIONS: This study showed an increasing number of low-flow alarms when the degrees of LVAD inflow cannula expand towards the septal-lateral plane. This emphasizes the importance of the LVAD inflow cannula angular position to prevent relapsing low-flow alarms with the risk of diminished quality of life and morbidity.

PMID:36111410 | DOI:10.1093/ejcts/ezac415

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Effect of regional vs general anesthesia on vital functions after cesarean section: a single center experience

Hypertens Pregnancy. 2022 Sep 16:1-6. doi: 10.1080/10641955.2022.2124417. Online ahead of print.

ABSTRACT

BACKGROUND: The aim was to determine the effect of regional anesthesia (RA) on postoperative vital functions in contrast to general endotracheal anesthesia (GEA) after the cesarean section.

METHODS: Prospective cohort study included consecutive term pregnant women delivered by cesarean section (GEA, n = 284; RA, n = 249).

RESULTS: Higher levels of blood pressure and heart rate, as well as lower levels of pulse oximetry were found for GEA in contrast to RA (p < 0.001). The application of RA presented less side-effects (p < 0.05).

CONCLUSIONS: RA for cesarean section should be preferred when balancing the risks and benefits for the mother and fetus.

PMID:36111407 | DOI:10.1080/10641955.2022.2124417

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HIV status disclosure and antiretroviral therapy adherence among children in Masaka region, Uganda

Afr J AIDS Res. 2022 Sep 15:1-10. doi: 10.2989/16085906.2022.2060843. Online ahead of print.

ABSTRACT

HIV-infected children are now living into adolescence and early adulthood in large numbers due to the availability and increased use of antiretroviral therapy (ART). However, receipt of HIV status disclosure among children remains low. We assessed the association between disclosure of HIV status and adherence to ART among children in the Masaka region of Uganda using multivariable logistic regression with generalised linear models with Poisson log-link function and robust variance in Stata software version 15.1. Data were collected from 524 assenting children aged 12-17 years between March and December 2020. Results show that, although not statistically significant, children who received disclosure of their HIV status reported improved ART adherence compared to children with no disclosure. Out-of-school children with post-primary education and children on first-line ART regimens were significantly more likely to report improved ART in both crude and adjusted analyses. Innovative interventions to promote progressive disclosure of HIV status to children on ART, in school, are needed to improve their ART adherence. There is also a need to evaluate the suitability of current counselling interventions provided to children being switched to second-line ART regimens to delay the need for third-line ART regimens.

PMID:36111384 | DOI:10.2989/16085906.2022.2060843

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Comparative Evaluation of the Intravenous Dexmedetomidine and Nalbuphine for Treatment of Post Spinal Shivering-A Randomized Prospective Trial

Asian J Anesthesiol. 2022 Sep 17. doi: 10.6859/aja.202209/PP.0003. Online ahead of print.

ABSTRACT

BACKGROUND: Shivering is one of the most common complications of spinal anesthesia because of inhibition of the thermoregulatory control. Dexmedetomidine and nalbuphine are the two commonly used drugs for treatment of perioperative shivering, but owing to paucity of their comparative data, we planned this study to compare the efficacy of these two drugs for treatment of post spinal shivering.

METHODS: This study was conducted on 80 American Society of Anesthesiologists physical status I or II patients aged from 18 to 60 years who developed post-spinal shivering of grade III or IV during elective surgeries. These patients were randomly allocated into two groups (40 each). In group D, dexmedetomidine 0.50 μg/kg, and in group N, nalbuphine 0.08 mg/kg was given intravenously for treatment of shivering. Data regarding response time, recurrence rate and success rate along with their adverse effects were noted, and statistical analysis was performed using SPSS software version 17.0 (SPSS Inc., Chicago, IL, USA).

RESULTS: The mean response time was significantly shorter in group D as compared to Group N (1.9 ± 0.6 min and 4.7 ± 1.1 min, respectively; P < 0.001), but the success rate in both groups was 100%. Recurrence of shivering was greater in group N as compared to group D, but this difference was statistically insignificant. Although hypotension and bradycardia were observed more in group D and nausea was observed more in group N, the difference among both the groups was statistically insignificant.

CONCLUSIONS: Dexmedetomidine is a better alternative than nalbuphine for treatment of post spinal shivering with quicker response time and comparable side effects.

PMID:36111378 | DOI:10.6859/aja.202209/PP.0003

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Genetic risk and incident venous thromboembolism in middle-aged and older adults following COVID-19 vaccination

J Thromb Haemost. 2022 Sep 15. doi: 10.1111/jth.15879. Online ahead of print.

ABSTRACT

BACKGROUND: COVID-19 vaccination has been associated with increased venous thromboembolism (VTE) risk. However, it is unknown whether genetic predisposition to VTE is associated with an increased risk of thrombosis following vaccination.

METHODS: Using data from the UK Biobank, which contains in-depth genotyping and linked vaccination and health outcomes information, we generated a polygenic risk score using 299 genetic variants. We prospectively assessed associations between PRS and incident VTE immediately after first and the second-dose vaccination and among historical unvaccinated cohorts during the pre- and early pandemic. We estimated hazard ratios (HR) for PRS-VTE associations using Cox models.

RESULTS: Of 359,310 individuals receiving one dose of a COVID-19 vaccine, 160,327 (44.6%) were males, and the mean age at the vaccination date was 69.05 (standard deviation [SD] 8.04) years. After 28- and 90-days follow-up, 88 and 299 individuals developed VTE respectively, equivalent to an incidence rate of 0.88 (95% confidence interval [CI] 0.70 to 1.08) and 0.92 (0.82 to 1.04) per 100,000 person-days. The PRS was significantly associated with a higher risk of VTE (HR per 1 SD increase in PRS, 1.41 (1.15 to 1.73) in 28 days and 1.36 (1.22 to 1.52) in 90 days). Similar associations were found in the historical unvaccinated cohorts.

CONCLUSIONS: The strength of genetic susceptibility with post-COVID-19-vaccination VTE is similar to that seen in historical data. Additionally, the observed PRS-VTE associations were equivalent for adenovirus- and mRNA-based vaccines. These findings suggest that, at the population level, the VTE that occurred after the COVID-19 vaccination has a similar genetic aetiology to the conventional VTE.

PMID:36111372 | DOI:10.1111/jth.15879