An assessment of introducers used for airway management.

Different introducers are available to assist with tracheal intubation. Subtle differences in the design of introducers can have a marked effect on safety and performance. The Difficult Airway Society's Airway Device Evaluation Project Team proposal states that devices should only be purchased for which there is at least a case-control study on patients assessing airway devices. However, resources are not currently available to carry out a case-control study on all introducers available on the market. This study comprised a laboratory and manikin-based investigation to identify introducers that could be suitable for clinical investigation. We included six different introducers in laboratory-based assessments (design characteristics) and manikin-based assessments involving the participation of 30 anaesthetists. Each anaesthetist attempted placement in the manikin's trachea with each of the six introducers in a random order. Outcomes included first-time insertion success rate; insertion success rate; number of attempts; time to placement; and distance placed. Each anaesthetist also completed a questionnaire. First-time insertion success rate depended significantly on the introducer used (p = 0.0016) and varied from 47% (Armstrong and P3) to 77% (Intersurgical and Frova). Median time to placement (including oesophageal placement) varied from 10 s (Eschmann and Frova) to 20 s (P3) (p = 0.0025). Median time to successful placement in the trachea varied from 9 s (Frova) to 22 s (Armstrong) (p = 0.037). We found that the Armstrong and P3 devices were not as acceptable as other introducers and, without significant improvements to their design and characteristics, the use of these devices in studies on patients is questionable. The study protocol is suitable for differentiating between different introducers and could be used as a basis for assessing other types of devices.

SARS-CoV-2 and Wisconsin Nursing Homes: Temporal Dynamics During the COVID-19 Pandemic.

OBJECTIVES: Evidence suggests that quality, location, and staffing levels may be associated with COVID-19 incidence in nursing homes. However, it is unknown if these relationships remain constant over time. We describe incidence rates of COVID-19 across Wisconsin nursing homes while examining factors associated with their trajectory during 5 months of the pandemic. DESIGN: Retrospective cohort study. SETTING/PARTICIPANTS: Wisconsin nursing homes. METHODS: Publicly available data from June 1, 2020, to October 31, 2020, were obtained. These included facility size, staffing, 5-star Medicare rating score, and components. Nursing home characteristics were compared using Pearson chi-square and Kruskal-Wallis tests. Multiple linear regressions were used to evaluate the effect of rurality on COVID-19. RESULTS: There were a total of 2459 COVID-19 cases across 246 Wisconsin nursing homes. Number of beds (P < .001), average count of residents per day (P < .001), and governmental ownership (P = .014) were associated with a higher number of COVID-19 cases. Temporal analysis showed that the highest incidence rates of COVID-19 were observed in October 2020 (30.33 cases per 10,000 nursing home occupied-bed days, respectively). Urban nursing homes experienced higher incidence rates until September 2020; then incidence rates among rural nursing homes surged. In the first half of the study period, nursing homes with lower-quality scores (1-3 stars) had higher COVID-19 incidence rates. However, since August 2020, incidence was highest among nursing homes with higher-quality scores (4 or 5 stars). Multivariate analysis indicated that over time rural location was associated with increased incidence of COVID-19 (ß = 0.05, P = .03). CONCLUSIONS AND IMPLICATIONS: Higher COVID-19 incidence rates were first observed in large, urban nursing homes with low-quality rating. By October 2020, the disease had spread to rural and smaller nursing homes and those with higher-quality ratings, suggesting that community transmission of SARS-CoV-2 may have propelled its spread.

Factors associated with independent nurse prescribers' antibiotic prescribing practice: a mixed-methods study using the Reasoned Action Approach.

BACKGROUND: The number of nurse prescribers is increasing, yet little evidence exists about their antibiotic prescribing behaviour. AIM: To measure nurse independent prescribers' (NIPs) intention to manage patients, presenting with an upper respiratory tract infection (URTI) for the first time, without prescribing an antibiotic and to examine the determinants of this behaviour. METHODS: This was a mixed-method study using the Reasoned Action Approach (RAA). Content analysis of data from 27 telephone interviews with NIPs informed the development of a questionnaire which was tested for validity and reliability and used in a national survey of NIPs across Scotland. Descriptive and inferential statistical analysis was carried out to determine intention to manage patients without prescribing an antibiotic and the significant influences on this intention. FINDINGS: From 184 participants it was found that NIPs intended to manage patients, presenting with a URTI for the first time, without prescribing an antibiotic. Key determinants were perceived norm, perceived behavioural control, and moral norm. Significant beliefs were positive social influence from other non-medical prescribers (P = 0.007) and nurse prescribers (P = 0.045), the enablers of prescriber experience and confidence (P ≤ 0.001), and the barrier of pressure from patients/carers (P = 0.010). CONCLUSION: The findings provide reassurance that NIPs intend to prescribe appropriately. The identification of nurse-specific barriers and enablers to this intention should be acknowledged and targeted in future interventions to manage this behaviour.

Racial Disparities in Incidence and Outcomes Among Patients With COVID-19.

Importance: Initial public health data show that Black race may be a risk factor for worse outcomes of coronavirus disease 2019 (COVID-19). Objective: To characterize the association of race with incidence and outcomes of COVID-19, while controlling for age, sex, socioeconomic status, and comorbidities. Design, Setting, and Participants: This cross-sectional study included 2595 consecutive adults tested for COVID-19 from March 12 to March 31, 2020, at Froedtert Health and Medical College of Wisconsin (Milwaukee), the largest academic system in Wisconsin, with 879 inpatient beds (of which 128 are intensive care unit beds). Exposures: Race (Black vs White, Native Hawaiian or Pacific Islander, Native American or Alaska Native, Asian, or unknown). Main Outcomes and Measures: Main outcomes included COVID-19 positivity, hospitalization, intensive care unit admission, mechanical ventilation, and death. Additional independent variables measured and tested included socioeconomic status, sex, and comorbidities. Reverse transcription polymerase chain reaction assay was used to test for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Results: A total of 2595 patients were included. The mean (SD) age was 53.8 (17.5) years, 978 (37.7%) were men, and 785 (30.2%) were African American patients. Of the 369 patients (14.2%) who tested positive for COVID-19, 170 (46.1%) were men, 148 (40.1%) were aged 60 years or older, and 218 (59.1%) were African American individuals. Positive tests were associated with Black race (odds ratio [OR], 5.37; 95% CI, 3.94-7.29; P = .001), male sex (OR, 1.55; 95% CI, 1.21-2.00; P = .001), and age 60 years or older (OR, 2.04; 95% CI, 1.53-2.73; P = .001). Zip code of residence explained 79% of the overall variance in COVID-19 positivity in the cohort (ρ = 0.79; 95% CI, 0.58-0.91). Adjusting for zip code of residence, Black race (OR, 1.85; 95% CI, 1.00-3.65; P = .04) and poverty (OR, 3.84; 95% CI, 1.20-12.30; P = .02) were associated with hospitalization. Poverty (OR, 3.58; 95% CI, 1.08-11.80; P = .04) but not Black race (OR, 1.52; 95% CI, 0.75-3.07; P = .24) was associated with intensive care unit admission. Overall, 20 (17.2%) deaths associated with COVID-19 were reported. Shortness of breath at presentation (OR, 10.67; 95% CI, 1.52-25.54; P = .02), higher body mass index (OR per unit of body mass index, 1.19; 95% CI, 1.05-1.35; P = .006), and age 60 years or older (OR, 22.79; 95% CI, 3.38-53.81; P = .001) were associated with an increased likelihood of death. Conclusions and Relevance: In this cross-sectional study of adults tested for COVID-19 in a large midwestern academic health system, COVID-19 positivity was associated with Black race. Among patients with COVID-19, both race and poverty were associated with higher risk of hospitalization, but only poverty was associated with higher risk of intensive care unit admission. These findings can be helpful in targeting mitigation strategies for racial disparities in the incidence and outcomes of COVID-19.

Partnership for mental health development in Sub-Saharan Africa (PaM-D): a collaborative initiative for research and capacity building.

AimsIn low- and middle-income countries (LMIC) in general and sub-Sahara African (SSA) countries in particular, there is both a large treatment gap for mental disorders and a relative paucity of empirical evidence about how to fill this gap. This is more so for severe mental disorders, such as psychosis, which impose an additional vulnerability for human rights abuse on its sufferers. A major factor for the lack of evidence is the few numbers of active mental health (MH) researchers on the continent and the distance between the little evidence generated and the policy-making process. METHODS: The Partnership for Mental Health Development in Africa (PaM-D) aimed to bring together diverse MH stakeholders in SSA, working collaboratively with colleagues from the global north, to create an infrastructure to develop MH research capacity in SSA, advance global MH science by conducting innovative public health-relevant MH research in the region and work to link research to policy development. Participating SSA countries were Ghana, Kenya, Liberia, Nigeria and South Africa. The research component of PaM-D focused on the development and assessment of a collaborative shared care (CSC) program between traditional and faith healers (T&FHs) and biomedical providers for the treatment of psychotic disorders, as a way of improving the outcome of persons suffering from these conditions. The capacity building component aimed to develop research capacity and appreciation of the value of research in a broad range of stakeholders through bespoke workshops and fellowships targeting specific skill-sets as well as mentoring for early career researchers. RESULTS: In the research component of PaM-D, a series of formative studies were implemented to inform the development of an intervention package consisting of the essential features of a CSC for psychosis implemented by primary care providers and T&FHs. A cluster randomised controlled trial was next designed to test the effectiveness of this package on the outcome of psychosis. In the capacity-building component, 35 early and mid-career researchers participated in the training workshops and several established mentor-mentee relationships with senior PaM-D members. At the end of the funding period, 60 papers have been published and 21 successful grant applications made. CONCLUSION: The success of PaM-D in energising young researchers and implementing a cutting-edge research program attests to the importance of partnership among researchers in the global south working with those from the north in developing MH research and service in LMIC.

Qualitative evaluation of a community peer support service for people with spinal cord injury.

STUDY DESIGN: Qualitative study involving individual semistructured in-depth interviews. OBJECTIVES: To evaluate peer support provided in general hospitals for people with spinal cord injuries (SCIs). SETTING: The South West of the United Kingdom. METHODS: Fourteen in-depth qualitative interviews were conducted with people with SCI and their close relatives, and with health-care professionals involved in their care. Transcribed interviews were coded inductively and analysed thematically. Themes were patterned around positive and less positive aspects of the experience of the peer support service. RESULTS: The psychological and emotional support provided by the peer support officer was highly valued by the participants. The peer support officer's direct experience of living with a spinal injury gave credibility to the practical advice, information and signposting provided; as well as to the empathy demonstrated by them during their involvement with people with SCI and their families. Health-care professionals appreciated their unique perspective and considered them as a valuable member of the multidisciplinary team. CONCLUSION: Peer support is valued by the people affected by SCI. There is a need to further investigate the key aspects of the service, including the optimal timing for introducing this peer support as well as more formal training of mentors.

UK National COPD Audit 2003: Impact of hospital resources and organisation of care on patient outcome following admission for acute COPD exacerbation.

BACKGROUND: Acute chronic obstructive pulmonary disease (COPD) exacerbations use many hospital bed days and have a high rate of mortality. Previous audits have shown wide variability in the length of stay and mortality between units not explained by patient factors. This study aimed to explore associations between resources and organisation of care and patient outcomes. METHODS: 234 UK acute hospitals each prospectively identified 40 consecutive acute COPD admissions, documenting process of care and outcomes from a retrospective case note audit. Units also completed a resources and organisation of care proforma. RESULTS: Data for 7529 patients were received. Inpatient mortality was 7.4% and mortality at 90 days was 15.3%; the readmission rate was 31.4%. Mean length of stay for discharged patients was 8.7 days (median 6 days). Wide variation was observed in all outcomes between hospitals. Both inpatient mortality (odds ratio (OR) 0.67, CI 0.50 to 0.90) and 90 day mortality (OR 0.75, CI 0.60 to 0.94) were associated with a staff ratio of four or more respiratory consultants per 1000 hospital beds. The length of stay was reduced in units with more respiratory consultants, better organisation of care scores, an early discharge scheme, and local COPD management guidelines. CONCLUSIONS: Units with more respiratory consultants and better quality organised care have lower mortality and reduced length of hospital stay. This may reflect unit resource richness. Dissemination of good organisational practice and recruitment of more respiratory specialists offers the potential for improved outcomes for hospitalised COPD patients.

Assessment of utilities and health-related quality of life in patients with chronic liver disease.

OBJECTIVES: Quantitative measures of the value patients place on the state of their health is crucial to understanding their experience, and to calculate quality-adjusted years of life for economic analyses. Patients' values in chronic liver disease remain unexplored, although experts' estimates of utilities have been examined. Our study tests the validity of a widely used utility measure in chronic liver disease and, if valid, establishes the decrement in health-related quality associated with chronic liver disease. METHODS: A total of 120 patients with chronic liver disease participated in the study (age 50 +/- 10 yr; men 53%; cirrhosis 51%, chronic viral hepatitis 51%, and chronic cholestatic liver disease 30%). All patients completed three instruments: Health Utility Index Mark 2 (scores 0-1), Short Form-36 (scale scores 0-100), and a disease-specific health-related quality of life instrument (Chronic Liver Disease Questionnaire; scores 1-7). RESULTS: We found a moderate to strong correlation between scores on the three measures and that impairment worsened as the severity of disease worsened. Patients without cirrhosis and those with Child's A cirrhosis showed substantial decrement in utilities (0.82 and 0.83, respectively) in the range of patients surviving brain tumor. Those with Child's B and C showed a greater decrement (0.67 and 0.56) that was in the range experienced by patients who survive a stroke (0.67). Utilities assessed by Health Utility Index Mark 2 differed substantially from estimates by "expert." CONCLUSIONS: We conclude that utilities should be based on patient reports and that the data from this study can inform economic analyses in studies of patients with chronic liver disease.

Dependency in older people recently admitted to care homes.

OBJECTIVE: to investigate dependency and general health status of a cohort of older people admitted to residential or nursing homes for long-term care. METHOD: we assessed 308 people aged over 65 years within 2 weeks of admission for long-term care to one of 30 nursing or residential homes in north-west England. Dependency was assessed using the Barthel activities of daily living index and the Crichton Royal Behaviour Rating Scale. We collected information from the homes' records on diagnosed conditions and current medication. RESULTS: 50% of the cohort were in a 'low dependency' band (Barthel score 13 - 20): 31% of those in nursing homes and 71% of those in residential homes. In nursing homes, low-dependency residents were more likely to be self-funding than those with higher dependency. Of a number of broad diagnostic groupings, only a diagnosis of dementia was associated with nursing- rather than residential-home admission. Of 47 residents who scored 9 or less on the Mini-Mental State Examination (indicating severe cognitive impairment), 85% had no diagnosis of dementia, neurological disorder or other psychiatric disorder. DISCUSSION: the high proportion of new admissions of subjects with low dependency needs raises questions about the effective targeting of resources and about management of the boundary between home-based and institutional care. The existence of an important group of self-funded, low-dependency new admissions to nursing homes suggests a need to provide better assessment and placement services for those who are financially independent of local authorities. Many new admissions had conditions which might benefit from rehabilitation but there were almost no therapy staff in the studied homes. In some cases where severe cognitive impairment was evident, there was no evidence that the result of any formal pre-admission psychiatric evaluation had been communicated to nursing or care staff.

Family accommodation of obsessive-compulsive symptoms: instrument development and assessment of family behavior.

Relatives frequently accommodate patients' obsessive-compulsive symptoms and clinicians hypothesize that such accommodations adversely affect patient outcome. This study's purpose was to develop a valid and reliable measure, the Family Accommodation Scale for Obsessive-Compulsive Disorder (FAS), and to investigate the family accommodation construct. We administered the FAS and additional family and patient measures to 36 adult obsessive-compulsive patients and their primary caregivers. The FAS demonstrated excellent interrater reliability and good internal consistency and performed well on assessment of its convergent and discriminant validity. Family accommodation was significantly associated with patient symptom severity and functioning, and with relatives' own obsessive-compulsive symptoms. Although most relatives accommodated patient symptoms, many did not believe that such accommodations improved the patient's clinical status. The FAS will provide researchers and clinicians with a useful tool for assessing family accommodation and for identifying families who may benefit from interventions aimed at developing more adaptive coping strategies.

The Good Neighbor Project: volunteerism and the elderly African-American patient with cancer.

The Good Neighbor Project is aimed at eliminating cultural and social barriers by recruiting and educating volunteers from African-American churches to provide in-home services for indigent, geriatric, African-American patients with cancer in Oakland, Calif. Volunteers' knowledge about and attitude toward cancer before and after their participation in the project were determined by a survey.

Assessment of diurnal variation of cerebrospinal fluid tryptophan and 5-hydroxyindoleacetic acid in healthy human females.

The role of serotonin (5-HT) in the pathogenesis and treatment of major neuropsychiatric disorders, including mood and anxiety disorders, continues to be the subject of extensive research. Previous studies examining central 5-HT functioning measured cerebrospinal fluid (CSF) levels of 5-hydroxyindoleacetic acid (5-HIAA) by using single or multiple lumbar punctures. A number of investigators have demonstrated the feasibility of continuous CSF sampling via an indwelling lumbar catheter to study CSF neurochemistry in healthy subjects and patients with neuropsychiatric illness. Four healthy female volunteers, aged 21-34 years, underwent continuous CSF sampling. CSF was collected at a constant rate of 1 ml every 10 minutes over a 30-hour period, with levels of tryptophan (TRP) and 5-HIAA measured every hour. Plasma was also obtained hourly for TRP determination. The results of this study indicate that CSF 5-HIAA, CSF TRP, and plasma TRP levels showed variation over time, but failed to show diurnal fluctuation. Intra-individual coefficients of variation determined for CSF 5-HIAA, CSF TRP, and plasma TRP ranged from 9.2 to 14.9%, 8.8 to 14.6%, and 14.7 to 19.0%, respectively. Continuous CSF sampling is safe and feasible in humans, and may prove useful for studies of central 5-HT neurotransmission in neuropsychiatric illness.

A risk-benefit assessment of drugs used in the management of obsessive-compulsive disorder.

Established efficacy and tolerability in large multicentre controlled studies have made serotonin (5-hydroxytryptamine; 5-HT) reuptake inhibitors (SRIs) the mainstay of monotherapy for adult obsessive-compulsive disorder (OCD). When compared with the selective serotonin reuptake inhibitors (SSRIs), the tricyclic compound clomipramine has a higher incidence of adverse effects but is well tolerated by most OCD patients and may confer the best overall antiobsessional effects. Consideration of specific adverse effect profiles, special patient population characteristics, drug interactions and relative cost of the various agents may direct clinicians in choosing the most appropriate first-line drug. Alternative agents as monotherapies have been explored, but none has consistently proven effective to date. Investigations of SRI augmentation with serotonin-enhancing agents have also failed to demonstrate substantial benefits for treatment-refractory OCD. Combination treatment with SRIs and dopamine receptor antagonist drugs appears to provide an improved response for the subpopulation of OCD patients who have comorbid 'tic-spectrum' disorders, though large-scale studies of the efficacy and tolerability of these regimens are not yet available.

Opiate dependence and withdrawal: preliminary assessment using single photon emission computerized tomography (SPECT).

Naloxone (0.8 mg, s.c.) effects on opiate withdrawal signs and symptoms and regional brain function were assessed in 10 methadone-maintained patients and 10 healthy subjects in a double-blind, placebo-controlled study. Regional brain function was assessed using single photon emission computerized tomography (SPECT) by evaluating the uptake of [99mTc]d,l-hexamethylpropyleneamine oxime (HMPAO) in the brain, a process related to regional cerebral perfusion. Comparisons of patients and healthy subjects after saline infusion suggested that chronic opiate dependence was associated with lower corrected activity ratios (regional count density/whole brain count density) in frontal and parietal cortices and greater activity ratios in the thalamus. Opiate-dependent patients, but not healthy subjects, developed opiate withdrawal signs and symptoms after naloxone administration. Following naloxone administration, patients undergoing opiate withdrawal exhibited lower whole brain count density than healthy subjects. They also had lower activity ratios in frontal and parietal cortices and increased thalamic activity ratios relative to healthy subjects receiving naloxone. Naloxone administration in healthy subjects, but not opiate withdrawal in patients, was associated with decreased right parietal cortex and increased right temporal cortex and left basal ganglia activity ratios. Relative to naloxone effects in healthy subjects, opiate withdrawal was associated with decreased whole brain count density and a reduced right temporal cortex activity ratio. This preliminary study reports an initial evaluation of HMPAO-SPECT imaging for assessing regional alterations in brain function during opiate dependence and withdrawal. While group differences were reported, the small magnitude of regional alterations in patients undergoing opiate withdrawal raised concern that HMPAO-SPECT methods employed were inadequate for assessing human regional brain function during phases of opiate addiction. Other emerging functional brain imaging technologies should be evaluated relative to improved HMPAO-SPECT methods for this purpose.

The Indented Paragraph Reading Test in the assessment of left hemi-neglect.

We investigated the validity of the Indented Paragraph Reading Test (IPRT), designed to assess left hemi-neglect (LHN) in reading behavior, with regard to education effects, scoring properties, and sensitivity to recovery of LHN. The IPRT was administered aspart of a larger battery to 50 right-hemisphere stroke patients approximately 1, 2, 3, and 7 months post-stroke if, and only if, the patient demonstrated LHN on the previous test battery. Contrary to expectations, performance on the IPRT was not correlated with education and even patients with minimal formal education were able to complete the test. We demonstrated that the author's suggested scoring criterion was valid and sensitive to the presence of LHN as well as to its recovery over time.

Assessment of severity and change in obsessive compulsive disorder.

Useful clinician-rated measures of OCD are now available. The Y-BOCS and NIMH Global OC both seem suitable for monitoring outcome in drug trials of OCD. These two scales seem relatively specific for symptoms of OCD and are sensitive to drug-induced changes in symptoms. Neither the Y-BOCS nor the NIMH Global OC confuse trait with state. There are ample data suggesting that the Y-BOCS is reliable and valid scale. Unlike some of the symptom inventories, such as the LOI and MOCI, final scores on the NIMH Global OC and Y-BOCS are not influenced directly by the type or number of obsessions and compulsions present. A computer-administered version of the Y-BOCS has been developed. Currently available patient-rated instruments suffer from serious shortcomings, including insensitivity to change and poor representation of patients with mono-symptomatic clinical pictures (e.g., hoarding alone). Some rating scales have been adapted for use in children with OCD. Several groups, including our own, have elected to use change scores on the 10-item Y-BOCS and a global measure of OCD, such as the NIMH Global OC or modified OGI, as the principal outcome variables in drug trials in patients with OCD. Several studies have selected a 35% decrease in Y-BOCS scores from baseline as indicative of clinically significant improvement. A limitation of all single-item global measures is that they cannot be resolved into smaller components. The more fine-grained analysis that is possible with the multi-item Y-BOCS makes it more desirable as a primary outcome measure, with a global scale as a secondary outcome measure.