Serious mental illnesses associated with receipt of surgery in retrospective analysis of patients in the Veterans Health Administration

Disparities in prehospital and emergency surgical care among patients with perforated ulcers and a history of mental illness: a nationwide cohort study

PURPOSE

To compare patients with and without a history of mental illness on process and outcome measures in relation to prehospital and emergency surgical care for patients with perforated ulcer.

METHODS

A nationwide registry-based cohort study of patients undergoing emergency surgery for perforated ulcer. We used data from the Danish Prehospital Database 2016-2017 and the Danish Emergency Surgery Registry 2004-2018 combined with data from other Danish databases. Patients were categorized according to severity of mental health history.

RESULTS

We identified 4.767 patients undergoing emergency surgery for perforated ulcer. Among patients calling the EMS with no history of mental illness, 51% were identified with abdominal pain when calling the EMS compared to 31% and 25% among patients with a history of moderate and major mental illness, respectively. Median time from hospital arrival to surgery was 6.0 h (IQR: 3.6;10.7). Adjusting for age, sex and comorbidity, patients with a history of major mental illness underwent surgery 46 min (95% CI: 4;88) later compared to patients with no history of mental illness. Median number of days-alive-and-out-of-hospital at 90-day follow-up was 67 days (IQR: 0;83). Adjusting for age, sex and comorbidity, patients with a history of major mental illness had 9 days (95% CI: 4;14) less alive and out-of-hospital at 90-day follow-up.

CONCLUSION

One-third of the population had a history of mental illness or vulnerability. Patients with a history of major mental illness were less likely to be identified with abdominal pain if calling the EMS prior to arrival. They had longer delays from hospital arrival to surgery and higher mortality.

Prescription opioid dispensing patterns among patients with schizophrenia or bipolar disorder

BACKGROUND

Patients with schizophrenia (SZ) or bipolar disorder (BD) may have increased risk of complications from prescribed opioids, including opioid-induced respiratory depression. We compared prescription opioid pain medication dispensing for patients with SZ or BD versus controls over 5 years to assess dispensing trends.

METHODS

This retrospective, observational study analysed US claims data from the IBM® MarketScan® Commercial and Multi-State Medicaid databases for individuals aged 18-64 years with prevalent SZ or BD for years 2015-2019 compared with age- and sex-matched controls. Baseline characteristics, comorbidities, and medication use were assessed. Proportions of individuals dispensed prescription opioids chronically (ie, ≥70 days over a 90-day period or ≥ 6 prescriptions annually) or nonchronically (≥1 prescription, chronic definition not met) were assessed.

RESULTS

In 2019, the Commercial and Medicaid databases contained records for 4773 and 30,179 patients with SZ and 52,780 and 63,455 patients with BD, respectively. Patients with SZ or BD had a higher prevalence of comorbidities, including pain, versus controls in each analysis year. From 2015 to 2019, among commercially insured patients with SZ, chronic opioid-dispensing proportions decreased from 6.1% (controls: 2.7%) to 2.3% (controls: 1.2%) and, for patients with BD, from 11.4% (controls: 2.7%) to 6.4% (controls: 1.6%). Chronic opioid dispensing declined in Medicaid-covered patients with SZ from 15.0% (controls: 14.7%) to 6.7% (controls: 6.0%) and, for patients with BD, from 27.4% (controls: 12.0%) to 12.4% (controls: 4.7%). Among commercially insured patients with SZ, nonchronic opioid dispensing decreased from 15.5% (controls: 16.4%) to 10.7% (controls: 11.0%) and, for patients with BD, from 26.1% (controls: 17.5%) to 20.0% (controls: 12.2%). In Medicaid-covered patients with SZ, nonchronic opioid dispensing declined from 22.5% (controls: 24.4%) to 15.1% (controls: 12.7%) and, for patients with BD, from 32.3% (controls: 25.9%) to 24.6% (controls: 13.6%).

CONCLUSIONS

The proportions of individuals dispensed chronic or nonchronic opioid medications each year were similar between commercially and Medicaid-insured patients with SZ versus controls and were higher for patients with BD versus controls. From 2015 to 2019, the proportions of individuals who were dispensed prescription opioids chronically or nonchronically decreased for patients with SZ or BD and controls.

Greater need but reduced access: a population study of planned and elective surgery rates in adult mental health service users

AIMS

Timely access to surgery is an essential part of healthcare. People living with mental health (MH) conditions may have higher rates of chronic illness requiring surgical care but also face barriers to care. There is limited evidence about whether unequal surgical access contributes to health inequalities in this group.

METHODS

We examined 1.22 million surgical procedures in public and private hospitals in New South Wales (NSW), Australia, in 2019. In a cross-sectional study of 76,320 MH service users aged 18 and over, surgical procedure rates per 1,000 population were compared to rates for 6.23 million other NSW residents after direct standardisation for age, sex and socio-economic disadvantage. Rates were calculated for planned and emergency surgery, for major specialty groups, for the top 10 procedure blocks in each specialty group and for 13 access-sensitive procedures. Subgroup analyses were conducted for hospital and insurance type and for people with severe or persistent MH conditions.

RESULTS

MH service users had higher rates of surgical procedures (adjusted incidence rate ratio [aIRR]: 1.53, 95% CI: 1.51-1.56), due to slightly higher planned procedure rates (aIRR: 1.22, 95% CI: 1.19-1.24) and substantially higher emergency procedure rates (aIRR: 3.60, 95% CI: 3.51-3.70). Emergency procedure rates were increased in all block groups with sufficient numbers for standardisation. MH service users had very high rates (aIRR > 4.5) of emergency cardiovascular, skin and plastics and respiratory procedures, higher rates of planned coronary artery bypass grafting, coronary angiography and cholecystectomy but lower rates of planned ophthalmic surgery, cataract repair, shoulder reconstruction, knee replacement and some plastic surgery procedures.

CONCLUSIONS

Higher rates of surgery in MH service users may reflect a higher prevalence of conditions requiring surgical care, including cardiac, metabolic, alcohol-related or smoking-related conditions. The striking increase in emergency surgery rates suggests that this need may not be being met, particularly for chronic and disabling conditions which are often treated by planned surgery in private hospital settings in the Australian health system. A higher proportion of emergency surgery may have serious personal and health system consequences.

Effect of Serious Mental Illness on Surgical Consultation and Operative Management of Older Adults with Acute Biliary Disease: A Nationwide Study

BACKGROUND

Mental illness is associated with worse outcomes after emergency general surgery. To understand how preoperative processes of care may influence disparate outcomes, we examined rates of surgical consultation, treatment, and operative approach between older adults with and without serious mental illness (SMI).

STUDY DESIGN

We performed a nationwide, retrospective cohort study of Medicare beneficiaries aged 65.5 years or more hospitalized via the emergency department for acute cholecystitis or biliary colic. SMI was defined as schizophrenia spectrum, mood, and/or anxiety disorders. The primary outcome was surgical consultation. Secondary outcomes included operative treatment and surgical approach (laparoscopic vs open). Multivariable logistic regression was used to examine outcomes with adjustment for potential confounders related to patient demographics, comorbidities, and rates of imaging.

RESULTS

Of 85,943 included older adults, 19,549 (22.7%) had SMI. Before adjustment, patients with SMI had lower rates of surgical consultation (78.6% vs 80.2%, p < 0.001) and operative treatment (68.2% vs 71.7%, p < 0.001), but no significant difference regarding laparoscopic approach (92.0% vs 92.1%, p = 0.805). In multivariable regression models with adjustment for confounders, there was no difference in odds of receiving a surgical consultation (odds ratio 0.98 [95% CI 0.93 to 1.03]) or undergoing operative treatment (odds ratio 0.98 [95% CI 0.93 to 1.03]) for patients with SMI compared with those without SMI.

CONCLUSIONS

Older adults with SMI had similar odds of receiving surgical consultation and operative treatment as those without SMI. As such, differences in processes of care that result in SMI-related disparities likely occur before or after the point of surgical consultation in this universally insured patient population.

Association Between Preexisting Mental Health Disorders and Adverse Outcomes in Adult Intensive Care Patients: A Data Linkage Study

OBJECTIVES

Mental illness is known to adversely affect the physical health of patients in primary and acute care settings; however, its impact on critically ill patients is less well studied. This study aimed to determine the prevalence, characteristics, and outcomes of patients admitted to the ICU with a preexisting mental health disorder.

DESIGN

A multicenter, retrospective cohort study using linked data from electronic ICU clinical progress notes and the Australia and New Zealand Intensive Care Society Adult Patient Database.

SETTING/PATIENTS

All patients admitted to eight Australian adult ICUs in the calendar year 2019. Readmissions within the same hospitalization were excluded.

INTERVENTIONS

None.

MEASUREMENTS AND MAIN RESULTS

Natural language processing techniques were used to classify preexisting mental health disorders in participants based on clinician documentation in electronic ICU clinical progress notes. Sixteen thousand two hundred twenty-eight patients (58% male) were included in the study, of which 5,044 (31.1%) had a documented preexisting mental health disorder. Affective disorders were the most common subtype occurring in 2,633 patients (16.2%), followed by anxiety disorders, occurring in 1,611 patients (9.9%). Mixed-effects regression modeling found patients with a preexisting mental health disorder stayed in ICU 13% longer than other patients (β-coefficient, 0.12; 95% CI, 0.10-0.15) and were more likely to experience invasive ventilation (odds ratio, 1.42; 95% CI, 1.30-1.56). Severity of illness and ICU mortality rates were similar in both groups.

CONCLUSIONS

Patients with preexisting mental health disorders form a significant subgroup within the ICU. The presence of a preexisting mental health disorder is associated with greater ICU length of stay and higher rates of invasive ventilation, suggesting these patients may have a different clinical trajectory to patients with no mental health history. Further research is needed to better understand the reasons for these adverse outcomes and to develop interventions to better support these patients during and after ICU admission.

Postsurgical morbidity and mortality favorably informs deep brain stimulation for new indications including schizophrenia and schizoaffective disorder

Background

Deep brain stimulation (DBS) shows promise for new indications like treatment-refractory schizophrenia in early clinical trials. In the first DBS clinical trial for treatment refractory schizophrenia, despite promising results in treating psychosis, one of the eight subjects experienced both a symptomatic hemorrhage and an infection requiring device removal. Now, ethical concerns about higher surgical risk in schizophrenia/schizoaffective disorder (SZ/SAD) are impacting clinical trial progress. However, insufficient cases preclude conclusions regarding DBS risk in SZ/SAD. Therefore, we directly compare adverse surgical outcomes for all surgical procedures between SZ/SAD and Parkinson's disease (PD) cases to infer relative surgical risk relevant to gauging DBS risks in subjects with SZ/SAD.

Design

In the primary analysis, we used browser-based statistical analysis software, TriNetX Live (trinetx.com TriNetX LLC, Cambridge, MA), for Measures of Association using the Z-test. Postsurgical morbidity and mortality after matching for ethnicity, over 39 risk factors, and 19 CPT 1003143 coded surgical procedures from over 35,000 electronic medical records, over 19 years, from 48 United States health care organizations (HCOs) through the TriNetX Research Network™. TriNetXis a global, federated, web-based health research network providing access and statistical analysis of aggregate counts of deidentified EMR data. Diagnoses were based on ICD-10 codes. In the final analysis, logistic regression was used to determine relative frequencies of outcomes among 21 diagnostic groups/cohorts being treated with or considered for DBS and 3 control cohorts.

Results

Postsurgical mortality was 1.01-4.11% lower in SZ/SAD compared to the matched PD cohort at 1 month and 1 year after any surgery, while morbidity was 1.91-2.73% higher and associated with postsurgical noncompliance with medical treatment. Hemorrhages and infections were not increased. Across the 21 cohorts compared, PD and SZ/SAD were among eight cohorts with fewer surgeries, nine cohorts with higher postsurgical morbidity, and fifteen cohorts within the control-group range for 1-month postsurgical mortality.

Conclusions

Given that the subjects with SZ or SAD, along with most other diagnostic groups examined, had lower postsurgical mortality than PD subjects, it is reasonable to apply existing ethical and clinical guidelines to identify appropriate surgical candidates for inclusion of these patient populations in DBS clinical trials.

Impact of Comorbid Psychiatric Disorders on Healthcare Utilization in Patients with Inflammatory Bowel Disease: A Nationally Representative Cohort Study

BACKGROUND AND AIMS

Patients with inflammatory bowel disease (IBD) frequently experience comorbid psychiatric disorders, which negatively impact quality of life. We characterized the longitudinal burden of hospitalization-related healthcare utilization in adults with IBD with and without comorbid anxiety, depression, or bipolar disorder.

METHODS

In the 2017 Nationwide Readmissions Database (NRD), we identified 40,177 patients with IBD who were hospitalized between January 1, 2017 and June 30, 2017 and who were followed until December 31, 2017. In this cohort, we compared the annual burden (i.e., total days spent in hospital), costs, risk of readmission, inpatient mortality, and IBD-related surgery in patients with and without comorbid psychiatric disorders (anxiety, depression, or bipolar disorder).

RESULTS

Of the 40,177 adults who were hospitalized for IBD, 25.7% had comorbid psychiatric disorders. Over a 10 month-long period of follow-up, patients with comorbid psychiatric disorders spent more days in the hospital (median, 7 days vs. 5 days, p < 0.01), experienced higher 30-day (31.3 vs. 25.4%; p < 0.01) and 90-day (42.6 vs. 35.3%, p < 0.01) readmission rates, and had higher hospitalization-related costs (median, $41,418 vs. $39,242, p < 0.01). However, they were less likely to undergo IBD-related procedures or surgeries. There were no differences in risk of mortality. On Cox proportional hazard analysis, the presence of comorbid psychiatric disorders was associated with a 16% higher risk of readmission (HR, 1.16; 95% CI, 1.13-1.20) and a 13% higher risk of severe IBD-related hospitalization (HR, 1.13; 95% CI, 1.08-1.16).

CONCLUSIONS

In adults with IBD, comorbid psychiatric disorders were independently associated with a higher burden and cost of hospitalization, without an increase in the risk of IBD-related surgery or procedures. Population-based interventions aimed at treating psychiatric comorbidities may decrease the risk of unplanned healthcare utilization.

Hospital nursing factors associated with decreased odds of mortality in older adult medicare surgical patients with depression

Background

Depression is common, costly, and has deleterious effects in older adult surgical patients. Little research exists examining older adult surgical patient outcomes and depression and the potential for nursing factors to affect these outcomes. The purpose of this study was to determine the relationship between hospital nursing resources, 30-day mortality; and the impact of depression on this relationship.

Methods

This was a retrospective cohort study employing a national nurse survey, hospital data, and Medicare claims data from 2006–2007. The sample included: 296,561 older adult patients, aged 65–90, who had general, orthopedic, or vascular surgery in acute care general hospitals from 2006–2007, 533 hospitals and 24,837 nurses. Random effects models were used to analyze the association between depression, hospital nursing resources, and mortality.

Results

Every added patient per nurse was associated with a 4% increase in the risk-adjusted odds of mortality in patients with depression (p < 0.05). Among all patients, every 10% increase in the proportion of bachelor’s prepared nurses was associated with a 4% decrease in the odds of mortality (p < 0.001) and a one standard deviation increase in the work environment was associated with a 5% decrease in the odds of mortality (p < 0.05).

Conclusions

For older adult patients hospitalized for surgery, the risk of mortality is associated with higher patient to nurse ratio, lower proportion of BSN prepared nurses in the hospital, and worse hospital work environment. Addressing the mental health care needs of older adults in the general care hospital setting is critical to ensuring positive outcomes after surgery. Hospital protocols to lower the risk of surgical mortality in older adults with and without depression could include improving nurse resources.

Agent Orange Exposure, Transformation From MGUS to Multiple Myeloma, and Outcomes in Veterans

Background

Multiple myeloma (MM) accounts for 1% to 2% of all cancers. Exposure to the pesticide Agent Orange (AO) has been established as a potential risk factor for the development of monoclonal gammopathy of undetermined significance (MGUS) and, subsequently, MM in Vietnam War veterans.

Methods

This study explored variation in survival related to AO exposure, transformation from MGUS to MM, and covariates. Vietnam War veterans with MM or MGUS were identified in Veterans Health Administration (VHA) health records data. Cox proportional hazards models analyzed survival as a function of AO, race, ethnicity, body mass index, nicotine dependence, alcohol use disorder, Charlson Comorbidity Index, and treatment. Autologous hematopoietic cell transplantation for MM was defined by procedure codes.

Results

In the VHA 16,366 patients were identified: 11,112 patients diagnosed with MGUS and 7261 with MM during fiscal years 2010 to 2015 were identified; 12% (n = 2007) had both diagnoses. No statistically significant difference in the rate of transformation from MGUS to MM in the AO exposed and AO not exposed groups was found. In survival models, AO exposure was associated with slightly lower mortality. Alcohol use disorder, nicotine dependence, older age, and greater comorbidity burden increased mortality risk. Black race, female sex, obesity/overweight, and hematopoietic cell transplantation for patients with MM were protective factors. AO exposure was associated with decreased mortality for both MM/MGUS groups. Transformation increased mortality risk for patients with MGUS and decreased mortality risk for patients with MM.

Conclusions

Because AO exposure is a nonmodifiable risk factor, focus should be placed on modifiable risk factors (eg, nicotine dependence, alcohol and drug use disorders, underlying comorbid conditions) as these were associated with worse outcomes. Future studies should examine the correlation of AO exposure, cytogenetics, and clinical outcomes in these veterans to best identify their disease course and optimize their care in the latter part of their life.

Impact of Mental Health on General Surgery Patients and Strategies to Improve Outcomes

Mental Health Disorders (MHD) are a growing concern nationwide. The significant impact MHD have on surgical outcomes has only recently started to be understood. This literature review investigated how mental health impacts the outcomes of general surgery patients and what can be done to make improvements. Patients with schizophrenia had the poorest surgical outcomes. Mental health disorders increased post-surgical pain, hospital length of stay, complications, readmissions, and mortality. Mental health disorders decreased wound healing and quality of care. Optimizing outcomes will be best accomplished through integrating more effective perioperative screening tools and interventions. Screenings tools can incorporate artificial intelligence, MHD data, resilience and its biomarkers, and patient mental health questionnaires. Interventions include cognitive behavioral therapy, virtual reality, spirituality, pharmacology, and resilience training.

Is Psychiatric Illness Associated With the Clinical Decision to Treat Facial Fractures?

PURPOSE

Underlying psychiatric conditions are thought to influence the presentation, management, and outcomes of facially injured patients. Our study sought to determine if psychiatric diagnoses were associated with the decision to repair facial fractures during the index hospitalization.

METHODS

This was a cross-sectional review of the 2014 Nationwide Emergency Department Sample. All patients with the primary diagnosis of a facial fracture were included in the study. The primary study predictor was the presence of a documented psychiatric illness. Covariates included patient age, insurance, injury mechanism, primary fracture location, other concomitant injuries, and Injury Severity Score. The study outcome was facial fracture treatment status (reduction or no reduction). A multiple logistic regression model was created to identify and measure independent factor associations for fracture treatment.

RESULTS

The final sample included 59,378 patients of whom 10,485 (17.7%) had a documented psychiatric illness. Most of these diagnoses involved substance use (62.5%). Patients with psychiatric illness had significantly higher rates of extra-nasal primary fracture location (56.2 vs 47.1%, P < .01) and a greater mean Injury Severity Score (5.0 vs 3.8, P < .01). In the unadjusted analysis, patients with psychiatric illness had higher rates of fracture repair during their index hospitalization (RR = 2.42, P < .01). After adjusting for covariates in the multiple logistic regression model, psychiatric illness became negatively associated with fracture repair (OR = 0.82, P < .01).

CONCLUSIONS

Patients with psychiatric illness experienced higher rates of hospitalization and suffered more severe patterns of injury but had lower odds of fracture repair during their index hospitalization after controlling for injury characteristics.

Vascular surgery receipt and outcomes for people with serious mental illnesses: Retrospective cohort study using a large mental healthcare database in South London

OBJECTIVE

Vascular surgery can be common among people with serious mental illness (SMI) given the high prevalence of cardiovascular disease. However, post-operative outcomes following vascular surgery have received little investigation, particularly in a subpopulation of SMI.

METHODS

We conducted a retrospective observational study using data from the South London and Maudsley NHS Foundation Trust (SLaM) via its Clinical Record Interactive Search (CRIS) platform and linkage with Hospital Episode Statistic (HES). Vascular surgery recipients were identified using OPCS version 4 codes. Length of stay (LOS) was modelled using Incidence Rate Ratios (IRRs), and 30-day emergency hospital readmissions using Odds Ratios (ORs) for people with SMI compared with the general population.

RESULTS

Vascular surgery was received by 152 patients with SMI diagnoses (schizophrenia, schizoaffective disorder, bipolar disorder) and 8821 catchment residents without any mental health conditions. People with active SMI symptoms more likely to be admitted to hospital via emergency route OR: 1.80 (95% CI: 1.06, 3.07) and more likely to stay longer in the hospital for vascular surgery IRR: 1.35 (1.01, 1.80) and more likely to be readmitted to hospital via emergency route within 30 days OR: 1.53 (1.02, 2.67). People with SMI who had major open vascular surgery and peripheral endovascular surgery more likely to have worse post-operative outcomes.

CONCLUSION

Our study highlights the risks faced by people with SMI following vascular surgery. These suggest tailored guidelines and policies are needed, based on the identification of pre-operative risk factors, allowing for focused post-vascular surgery care to minimise adverse outcomes.

Surgical outcomes for people with serious mental illness are poorer than for other patients: a systematic review and meta-analysis

OBJECTIVE

To assess the association between having a serious mental illness and surgical outcomes for adults, including in-hospital and 30-day mortality, post-operative complications, and hospital length of stay.

STUDY DESIGN

Systematic review and meta-analysis of publications in English to 30 July 2018 of studies that examined associations between having a serious mental illness and surgical outcomes for adults who underwent elective surgery. Primary outcomes were in-hospital and 30-day mortality, post-operative complications, and length of hospital stay. Risk of bias was assessed with the Quality in Prognosis Studies (QUIPS) tool. Studies were grouped by serious mental illness diagnosis and outcome measures. Odds ratios (ORs) or mean differences (MDs), with 95% confidence intervals (CIs), were calculated in random effects models to provide pooled effect estimates.

DATA SOURCES

MEDLINE, EMBASE, PsychINFO, and the Cochrane Library.

DATA SYNTHESIS

Of the 3824 publications identified by our search, 26 (including 6 129 806 unique patients) were included in our analysis. The associations between having any serious mental illness diagnosis and having any post-operative complication (ten studies, 125 624 patients; pooled effect: OR, 1.44; 95% CI, 1.15-1.79) and a longer stay in hospital (ten studies, 5 385 970 patients; MD, 2.6 days; 95% CI, 0.8-4.4 days) were statistically significant, but not those for in-hospital mortality (three studies, 42 926 patients; OR, 1.21; 95% CI, 0.69-2.12) or 30-day mortality (six studies, 83 013 patients; OR, 1.85; 95% CI, 0.86-3.99).

CONCLUSIONS

Having a serious mental illness is associated with higher rates of post-operative complications and longer stays in hospital, but not with higher in-hospital or 30-day mortality. Targeted pre-operative interventions may improve surgical outcomes for these vulnerable patients.

SYSTEMATIC REVIEW REGISTRATION

PROSPERO, CRD42018080114 (prospective).

Surgical experience for patients with serious mental illness: a qualitative study

BACKGROUND

People with serious mental illness (SMI) have significantly worse surgical outcomes compared to the general population. There are many contributing factors to this complex issue, however consideration of the surgical experience from the patient's own perspective has never been undertaken. This lack of understanding prevents the provision of truly patient centred care and may limit the impact of potential improvement initiatives. Therefore this study aims to describe and better understand the surgical experience from the perspective of patients with SMI.

METHODS

Within this qualitative study, semi-structured, audio-recorded interviews were conducted between August 2019 - June 2020, with 10 consenting participants with SMI who had surgery in the previous 2 years. A thematic analysis approach was used to explore both the positive and negative aspects of the participant's surgical experience commencing from pre-operative consultation to hospital discharge and follow-up.

RESULTS

Four main themes and related subthemes emerged including i) the perceived lack of mental ill health recognition, ii) highly variable patient and clinician interactions, iii) the impact of healthcare services, and iv) strategies for improvement.

CONCLUSION

Surgical patients with SMI want to be treated like everyone else whilst still having their mental ill health acknowledged and proactively managed despite this rarely occurring, which is valuable information for all surgical teams to consider and learn from. Participants were able to describe several readily implementable strategies to potentially improve their care and overall surgical experience, and as such highlight considerable opportunities for these to be tested and evaluated for this underserved patient group.

Diagnostic tests and treatment procedures performed prior to cardiovascular death in individuals with severe mental illness

OBJECTIVE

To examine whether severe mental illnesses (i.e., schizophrenia or bipolar disorder) affected diagnostic testing and treatment for cardiovascular diseases in primary and specialized health care.

METHODS

We performed a nationwide study of 72 385 individuals who died from cardiovascular disease, of whom 1487 had been diagnosed with severe mental illnesses. Log-binomial regression analysis was applied to study the impact of severe mental illnesses on the uptake of diagnostic tests (e.g., 24-h blood pressure, glucose/HbA1c measurements, electrocardiography, echocardiography, coronary angiography, and ultrasound of peripheral vessels) and invasive cardiovascular treatments (i.e., revascularization, arrhythmia treatment, and vascular surgery).

RESULTS

Patients with and without severe mental illnesses had similar prevalences of cardiovascular diagnostic tests performed in primary care, but patients with schizophrenia had lower prevalences of specialized cardiovascular examinations (prevalence ratio (PR) 0.78; 95% CI 0.73-0.85). Subjects with severe mental illnesses had lower prevalences of invasive cardiovascular treatments (schizophrenia, PR 0.58; 95% CI 0.49-0.70, bipolar disorder, PR 0.78; 95% CI 0.66-0.92). The prevalence of invasive cardiovascular treatments was similar in patients with and without severe mental illnesses when cardiovascular disease was diagnosed before death.

CONCLUSION

Better access to specialized cardiovascular examinations is important to ensure equal cardiovascular treatments among individuals with severe mental illnesses.

Chronic pain diagnoses and opioid dispensings among insured individuals with serious mental illness

BACKGROUND

Individuals with major depressive disorder (MDD) and bipolar disorder (BD) have particularly high rates of chronic non-cancer pain (CNCP) and are also more likely to receive prescription opioids for their pain. However, there have been no known studies published to date that have examined opioid treatment patterns among individuals with schizophrenia.

METHODS

Using electronic medical record data across 13 Mental Health Research Network sites, individuals with diagnoses of MDD (N = 65,750), BD (N = 38,117) or schizophrenia or schizoaffective disorder (N = 12,916) were identified and matched on age, sex and Medicare status to controls with no documented mental illness. CNCP diagnoses and prescription opioid medication dispensings were extracted for the matched samples. Multivariate analyses were conducted to evaluate (1) the odds of receiving a pain-related diagnosis and (2) the odds of receiving opioids, by separate mental illness diagnosis category compared with matched controls, controlling for age, sex, Medicare status, race/ethnicity, income, medical comorbidities, healthcare utilization and chronic pain diagnoses.

RESULTS

Multivariable models indicated that having a MDD (OR = 1.90; 95% CI = 1.85-1.95) or BD (OR = 1.71; 95% CI = 1.66-1.77) diagnosis was associated with increased odds of a CNCP diagnosis after controlling for age, sex, race, income, medical comorbidities and healthcare utilization. By contrast, having a schizophrenia diagnosis was associated with decreased odds of receiving a chronic pain diagnosis (OR = 0.86; 95% CI = 0.82-0.90). Having a MDD (OR = 2.59; 95% CI = 2.44-2.75) or BD (OR = 2.12; 95% CI = 1.97-2.28) diagnosis was associated with increased odds of receiving chronic opioid medications, even after controlling for age, sex, race, income, medical comorbidities, healthcare utilization and chronic pain diagnosis; having a schizophrenia diagnosis was not associated with receiving chronic opioid medications.

CONCLUSIONS

Individuals with serious mental illness, who are most at risk for developing opioid-related problems, continue to be prescribed opioids more often than their peers without mental illness. Mental health clinicians may be particularly well-suited to lead pain assessment and management efforts for these patients. Future research is needed to evaluate the effectiveness of involving mental health clinicians in these efforts.

Mobile Compression Reduces Bleeding-related Readmissions and Wound Complications After THA and TKA

BACKGROUND

The use of chemoprophylaxis to prevent thromboembolic disease after primary THA and TKA can be associated with postoperative bleeding complications. Mechanical prophylaxis has been studied as an alternative to chemoprophylaxis with greater safety in patients undergoing THA, but no data have been published comparing the safety of chemoprophylaxis versus mechanical methods for patients undergoing TKA. The risk of readmission resulting from bleeding and venous thromboembolism (VTE) has also not been determined for patients undergoing THA or TKA when treated with low-molecular-weight heparin (LMWH) alone compared with mechanical prophylaxis plus aspirin (ASA).

QUESTION/PURPOSES

We sought to answer four questions: For the THA and TKA cohorts, respectively, (1) was the incidence of readmission resulting from VTE and bleeding complications higher with LMWH than mobile compression plus ASA; and (2) was the incidence of wound bleeding complications higher with LMWH than mechanical compression plus ASA? For the TKA cohort specifically, (3) was the frequency of systemic bleeding events and complications related to chemical prophylaxis higher with LMWH compared with mechanical compression plus ASA? (4) Was there a difference in symptomatic VTEs between LMWH and mechanical compression plus ASA?

METHODS

Between November 2008 and April 2011, 632 patients underwent primary THA and TKA. Seventy-two patients (11%) were identified before surgery as being at high risk for VTE (31 patients) or bleeding (41 patients) and were excluded from the study. Five hundred sixty patients (89%) were considered to be at standard risk for VTE and bleeding and comprise the study cohort. Between November 2008 and November 2009, 252 patients (76 THAs, 176 TKAs) underwent THA and TKA and were treated with LMWH (5 mg dalteparin given subcutaneously daily for 14 days) and in-hospital nonmobile mechanical compression. Between November 2009 and April 2011, a total of 308 patients undergoing THA and TKA (108 THAs, 200 TKAs) were treated using a mobile compression device plus oral aspirin once daily for 2 weeks after surgery. All complications and readmissions that occurred within 6 weeks of surgery were noted. There were no differences between the VTE treatment groups with regard to age, sex, or body mass index.

RESULTS

For the THA cohort, there was no difference in the frequency of readmission for a bleeding complication (wound or systemic) between the two groups (2.6% for LMWH versus 0.9% for mobile compression; p = 0.57; odds ratio [OR], 2.9). Patients undergoing TKA treated with LMWH had higher readmission rates within 6 weeks of surgery because of a bleeding complication, a wound infection, or the development of a VTE (6.8% for LMWH versus 1.5% for mobile compression; p = 0.015; OR, 4.8). For the THA cohort, there was higher wound bleeding complication frequency with LMWH (9.2% for LMWH versus 0.9% for mechanical compression; p = 0.009; OR, 10.9). Patients undergoing TKA treated with LMWH had a higher frequency of wound bleeding complications or infection (3.9% for LMWH versus 0.5% for mobile compression; p = 0.028; OR, 8.2). Patients undergoing TKA treated with LMWH had higher rates of systemic bleeding or a complication secondary to LMWH administration (2.8% for LMWH versus 0% for mobile compression; p = 0.022; OR, 12.8). No difference was noted in the rate of symptomatic VTEs between either group (for THA: 2.6% for the LMWH group versus 1.9% for the mechanical compression group; p = 1; for TKA: 1.1% versus 0%, respectively; p = 0.22).

CONCLUSIONS

Based on these results, we advocate for routine use of mobile mechanical compression devices in the prevention of VTEs and complications associated with more potent chemical anticoagulants. However, more focused randomized clinical trials are needed to validate these findings.

LEVEL OF EVIDENCE

Level III, therapeutic study.

Association between triglyceride levels and cardiovascular disease in patients with acute pancreatitis

Conventional wisdom supports prescribing “fibrates before statins”, that is, prioritizing treatment of hypertriglyceridemia (hTG) to prevent pancreatitis ahead of low-density lipoprotein cholesterol to prevent coronary heart disease. The relationship between hTG and acute pancreatitis, however, may not support this approach to clinical management. This study analyzed administrative data from the Veterans Health Administration for evidence of (1) temporal association between assessed triglycerides level and days to acute pancreatitis admission; (2) association between hTG and outcomes in the year after hospitalization for acute pancreatitis; (3) relative rates of prescription of fibrates vs statins in patients with acute pancreatitis; (4) association of prescription of fibrates alone versus fibrates with statins or statins alone with rates of adverse outcomes after hospitalization for acute pancreatitis. Only modest association was found between above-normal or extremely high triglycerides and time until acute pancreatitis. CHD/MI/stroke occurred in 23% in the year following AP, supporting cardiovascular risk management. Fibrates were prescribed less often than statins, defying conventional wisdom, but the high rates of cardiovascular events in the year following AP support a clinical focus on reducing cardiovascular risk factors.

Multiple chronic condition profiles and survival among oldest-old male patients with hip fracture

To improve understanding of survival among very elderly male patients with surgically repaired hip fractures, this study applied classification techniques to multiple chronic conditions (MCC) then modeled survival by latent class. Veterans Health Administration (VHA)'s electronic medical records on male inpatients age 85-100 years (n=896) with hip fracture diagnosis and repair were used. MCC defined by Charlson and Elixhauser disorders, medications, demographic covariates, and 5 years follow-up survival were included. Latent Class Analysis (LCA) identified three classes based on patterns of MCC, medications, and demographic covariates: Low-comorbidity (16%), High-longevity (55%), and High-comorbidity (29%). Overall, survival censored at 5 years post-op averaged 717days. The Low-comorbidity group was more likely to be Hispanic, less disabled per VHA determination of eligibility for care, with less risk of postoperative emergency department (ED) visit, and taking no prescription medications. The High-longevity group had longer survival. The High-comorbidity group had more MCC, more prescription medications and shorter survival than the other two groups. Accelerated failure time (AFT) modeled associations between MCC and 5-year survival by class. In AFT models, fewer days until first postoperative ED visit was significantly associated with survival across the three classes. About one in male hip fractured veteran patients over the age of 85 had high levels of MCC and ED use and experienced shorter survival. Hip fracture patients with MCC may merit enhanced post-discharge management. Close investigation targeted to MCC and hip fractures is needed to optimize clinical practices for oldest-old patients in community healthcare systems as well as VHA.

Outcomes after traumatic injury in patients with preexisting psychiatric illness

BACKGROUND

Patients with psychiatric illness have been shown to experience higher rates of traumatic injury. Injury patterns, treatment decisions, and outcomes have not been well characterized in patients with psychiatric illness after injury, in particular those who undergo acute surgical intervention. The purpose of this analysis was to determine mortality, complications, and surgical intervention rates in patients with psychiatric illness after traumatic injury.

METHODS

This is a retrospective study of trauma patients ≥18 years old admitted to LAC + USC Medical Center between January 2008 and March 2015. Patients with psychiatric diagnoses were identified using ICD-9 diagnosis codes. Multivariate logistic regression analyses taking into account demographic and injury characteristics were used to identify associations between psychiatric comorbidity, injury mechanism, surgical interventions, and outcomes in patients after injury.

RESULTS

A total of 26,502 patients were analyzed. Of these, 3,040 (11.5%) had a documented psychiatric comorbidity (2.0% depressive disorder, 0.8% bipolar disorder, 1.3% schizophrenia, 0.5% anxiety disorder, 3.2% substance use disorder). Patients with psychiatric illness were significantly older (49.6 years vs. 42.0 years, p < 0.001), had a lower proportion of penetrating injuries (13.8% vs. 18.1%, p < 0.001), and had a higher incidence of self-inflicted injuries (11.6% vs. 0.72%, p < 0.001). No difference in gender distribution was observed (74.2% men vs. 74.4% men, p = 0.80). Overall mortality was similar in both groups (adjusted odds ratio [aOR], 0.73; p = 0.07). Patients with psychiatric illness were significantly less likely to undergo acute surgical intervention within 6 hours of emergency department admission (aOR, 0.64; p < 0.001). Time from ED arrival to consent for acute surgical intervention was similar in both groups (94.8 min vs. 93.0 min, p = 0.84). No significant difference in mortality after acute surgical intervention was observed (aOR, 0.26; p = 0.10). Psychiatric illness was associated with a significantly higher likelihood of developing complications (aOR, 1.90; p < 0.001) and longer hospital lengths of stay (10.6 days vs. 6.2 days, p < 0.001).

CONCLUSIONS

Trauma patients with comorbid psychiatric illness were observed to have lower rates of acute surgical interventions, higher complication rates, and longer hospital lengths of stay. Further studies are needed to better characterize the causative factors underlying these associations.

LEVEL OF EVIDENCE

Epidemiological, level III.

A study to reduce readmissions after surgery in the Veterans Health Administration: design and methodology

BACKGROUND

Hospital readmissions are associated with higher resource utilization and worse patient outcomes. Causes of unplanned readmission to the hospital are multiple with some being better targets for intervention than others. To understand risk factors for surgical readmission and their incremental contribution to current Veterans Health Administration (VA) surgical quality assessment, the study, Improving Surgical Quality: Readmission (ISQ-R), is being conducted to develop a readmission risk prediction tool, explore predisposing and enabling factors, and identify and rank reasons for readmission in terms of salience and mutability.

METHODS

Harnessing the rich VA enterprise data, predictive readmission models are being developed in data from patients who underwent surgical procedures within the VA 2007-2012. Prospective assessment of psychosocial determinants of readmission including patient self-efficacy, cognitive, affective and caregiver status are being obtained from a cohort having colorectal, thoracic or vascular procedures at four VA hospitals in 2015-2017. Using these two data sources, ISQ-R will develop readmission categories and validate the readmission risk prediction model. A modified Delphi process will convene surgeons, non-surgeon clinicians and quality improvement nurses to rank proposed readmission categories vis-à-vis potential preventability.

DISCUSSION

ISQ-R will identify promising avenues for interventions to facilitate improvements in surgical quality, informing specifications for surgical workflow managers seeking to improve care and reduce cost. ISQ-R will work with Veterans Affairs Surgical Quality Improvement Program (VASQIP) to recommend potential new elements VASQIP might collect to monitor surgical complications and readmissions which might be preventable and ultimately improve surgical care.

Preventative care for patients with inflammatory bowel disease in the Veterans Health Administration

Patients with inflammatory bowel disease (IBD) have underlying immune dysregulation. Immunosuppressive medications put them at risk of infection. This study assessed rates of recommended vaccinations and preventative screening in patients with IBD.Nationwide data on patients diagnosed with IBD in the Veterans Health Administration (VHA) October 2004 to September 2014 were extracted. Variation in vaccination, screenings, and risk of death by demographic factors (age group, gender) were estimated in bivariate and multivariable analyses.During the 10-year study period, 62,002 patients were treated for IBD. Nonmelanoma skin cancer was found in 2.6%, and these patients more commonly accessed dermatology clinic (22.5% vs 15.2%; chi-square = 66.6; df = 1; P < 0.0001). In total, 15% received DEXA scans, especially women (34.7% vs 13.2% men; chi-square = 1415.5; df = 1; P < 0.0001). Eye manifestations were noted in 38.3% yet only 31% were referred to ophthalmology. Abnormal Pap smears were found for 15% of women <65 (compared to 5% among normal patient populations); 34% had no record of Pap smear in VHA data. Vaccination rates were modest: pneumococcal 39%; TDAP 23%; hepatitis B 3%; varicella and PPD <0.5%. In an adjusted logistic regression model, 5-year mortality was lower among those using primary care prior to IBD diagnosis (odds ratio [OR] = 0.61; 95% CI 0.55-0.68).Despite the current IBD guidelines, vaccination and preventative screening rates were unacceptably low among patients diagnosed with IBD. Interventions such as education and increased awareness may be needed to improve these rates.