Evaluating the Role of Competency-Based Behavioral Interviewing in Holistic Medical School Admissions.

PROBLEM: Holistic review is a multifaceted concept that aims to increase diversity and applicant fit with program needs by complementing traditional academic requirements with appraisal of a wider range of personal characteristics and experiences. Behavioral interviewing has been practiced and studied in human resources, business, and organizational psychology for over 50 years. Its premise is that future performance can be anticipated from past actions. However, many of the interview approaches within the holistic framework are resource intensive and logistically challenging. APPROACH: The Vanderbilt University School of Medicine instituted a competency-based behavioral interview (CBBI) to augment the selection process in 2012. Behavioral interviews are based on key competencies needed for entering students and require applicants to reflect on their actual experiences and what they learned from them. The authors reviewed 5 years of experience (2015-2019) to evaluate how CBBI scores contributed to the overall assessment of applicants for admission. OUTCOMES: The final admission committee decision for each applicant was determined by reviewing multiple factors, with no single assessment determining the final score. The CBBI and summary interview scores showed a strong association (P < .005), suggesting that the summary interviewer, who had access to the full applicant file, and the CBBI interviewer, who did not, assessed similar strengths despite the 2 different approaches, or that the strengths assessed tracked in the same direction. Students whose 2 interview scores were not aligned were less likely to be accepted to the school. NEXT STEPS: The review raised awareness about the cultural aspects of interpreting the competencies and the need to expand our cultural framework throughout interviewer training. Findings indicate that CBBIs have the potential to reduce bias related to over-reliance on standardized metrics; however, additional innovation and research are needed.

Comparing Faculty and Trainee Evaluators of First-Year Resident Skills.

OBJECTIVE: To determine if senior residents are comparable to faculty in assessing first-year resident skills on their overall assessment. BACKGROUND: As resident training moves towards a competency-based model, innovative approaches to evaluation and feedback through simulation need to be developed for both procedural as well as interpersonal and communication skills. In most areas of simulation, the faculty assess resident performance however; in clinical practice, first-year residents are often overseen and taught by senior residents. We aim to explore the agreement between faculty and senior resident assessors to determine if senior residents can be incorporated into a competency-based curriculum as appropriate evaluators of first-year resident skills. DESIGN: Annual surgical first year resident training for central line placement, obtaining informed consent and breaking bad news at a single institution is assessed through an overall assessment (OA). In previous years, only faculty have been the evaluators for the OA. In this study, select senior residents were asked to participate as evaluators and agreement between groups of evaluators was assessed across the 3 tasks taught during surgical first-year resident training. SETTING: Vanderbilt University Medical Center, tertiary hospital, Simulation Center. PARTICIPANTS: Anesthesia and surgery interns, chief residents, anesthesia and surgical faculty. RESULTS: Agreement between faculty and senior resident assessors was strongest for the central line placement simulation with a faculty average competency score of 10.71 and 9.59 from senior residents (κ = 0.43; 95% CI: -0.2, 0.34). Agreement was less substantial for simulated informed consent (κ = 0.08; 95% CI: -0.19, 0.36) and the breaking bad news simulation (κ = 0.07; 95% CI: -0.2, 0.34). CONCLUSION: Select senior residents are comparable to faculty evaluators for procedural competency; however, there was less agreement between evaluator groups for interpersonal and communication-based competencies.

The Kidney Transplant: Maintaining Excellent Outcomes While Increasing Skills Acquisition.

OBJECTIVE/BACKGROUND: Kidney transplantation is a complex operation that incorporates multiple fundamental surgical techniques and is an excellent opportunity for surgical skill development during residency training. We hypothesized that increasing resident competency, measured as anastomosis time, could be demonstrated while maintaining high-quality surgical outcomes during the learning process. METHODS: We performed a retrospective cohort study of surgical resident involvement in kidney transplantation and recorded the anastomosis time. The study population comprised adult, single organ kidney transplants (n = 2052) at a large academic transplant center between 2006 and 2019. Descriptive statistics included frequencies, medians, and means. A mixed model of anastomosis time on number of procedures was fitted. Poisson models were fitted with outcomes of the number of patients with delayed graft function and number of patients that underwent reoperation postoperatively, with the exposure being number of kidney transplants performed by resident. RESULTS: Results from the mixed model suggest that as the number of times a resident performs the surgery increases, the time to conduct the operation decreases with statistical significance. The Poisson regression demonstrated no significant relationship between the operative volume of a resident and postoperative complications. CONCLUSION: This study demonstrated statistical evidence that with an increase in the number of renal transplantations performed by a surgical resident, anastomosis time decreased. It also demonstrated no significant relationship between number of kidney transplants performed by a resident and postoperative complications, suggesting that patient outcomes for this operation are not adversely affected by resident involvement.

A Graduate Medical Orientation Intervention Focused on Local Health Inequities.

Background: Residents must understand the social drivers of health in the communities they serve to deliver quality care. While resident orientation provides an opportunity to introduce residents to social and structural drivers of health, inequity, and care delivery relevant to the patient population in their new communities, many graduate medical education orientation curricula do not include this content. Objective: To report the development and implementation of a novel, patient-centered health equity orientation curriculum, including initial feasibility and acceptability data as well as preliminary self-reported outcomes. Methods: The curriculum was developed by academic faculty in collaboration with institutional and local health equity champions. Content centered on the history of inequities and racism within the local communities and included didactic presentations, asynchronous video, and virtual site visits to community resource groups. The curriculum was administered to all 2021 incoming Vanderbilt University Medical Center medical and surgical residents (N=270) over 2 half-days, both in-person and via Zoom. Data were collected anonymously via pre- and post-surveys. Results: A total of 216 residents (80% response rate) provided pre-survey response data, but only 138 residents (51.1%) provided post-survey data, including self-reported demographics (eg, underrepresented in medicine status) and level of agreement with 10 competency-based statements coded as pertaining to knowledge, skills, behaviors, or attitudes (KSBAs). Primary outcomes included improvement in residents' KSBAs from pre- to post-survey. The greatest increases in percentages occurred with content that was specific to local history and population. Conclusions: In a class of incoming residents, this study demonstrated feasibility, acceptability, and pre-post curriculum improvement in self-reported KSBAs when addressing health equity issues.

Contraceptive exposure associates with urinary tract infection risk in a cohort of reproductive-age women: a case control study.

PURPOSE: Although non-barrier contraception is commonly prescribed, the risk of urinary tract infections (UTI) with contraceptive exposure is unclear. MATERIALS AND METHODS: Using data from Vanderbilt University Medical Centre's deidentified electronic health record (EHR), women ages 18-52 were randomly sampled and matched based on age and length of EHR. This case-control analysis tested for association between contraception exposure and outcome using UTI-positive (UTI+) as cases and upper respiratory infection+ (URI+) as controls. RESULTS: 24,563 UTI + cases (mean EHR: 64.2 months; mean age: 31.2 years) and 48,649 UTI-/URI + controls (mean EHR: 63.2 months; mean age: 31.9 years) were analysed. In the primary analysis, UTI risk was statistically significantly increased for the oral contraceptive pill (OCP; OR = 1.10 [95%CI = 1.02-1.11], p ≤ 0.05), intrauterine device (IUD; OR = 1.13 [95%CI = 1.04-1.23], p ≤ 0.05), etonogestrel implant (Nexplanon®; OR = 1.56 [95% CI = 1.24-1.96], p ≤ 0.05), and medroxyprogesterone acetate injectable (Depo-Provera®; OR = 2.16 [95%CI = 1.99-2.33], p ≤ 0.05) use compared to women not prescribed contraception. A secondary analysis that included any non-IUD contraception, which could serve as a proxy for sexual activity, demonstrated a small attenuation for the association between UTI and IUD (OR = 1.09 [95%CI = 0.98-1.21], p = 0.13). CONCLUSION: This study notes potential for a small increase in UTIs with contraceptive use. Prospective studies are required before this information is applied in clinical settings. CONDENSATION: Although non-barrier contraception is commonly prescribed, the risk of urinary tract infections (UTI) with contraceptive exposure is poorly understood. This large-cohort, case-control study notes potential for a small increase in UTIs with contraceptive use.

Forming the Hematology-Oncology Collaborative Videoconferencing (CO-VID) Learning Initiative: Experiential Lessons Learned From a Novel Trainee-Led Multidisciplinary Virtual Learning Platform.

PURPOSE: COVID-19 challenged medical practice and graduate medical education. Building on previous initiatives, we describe and reflect on the formative process and goals of the Hematology-Oncology Collaborative Videoconferencing Learning Initiative, a trainee-led multi-institutional virtual COVID-19 learning model. METHODS: Clinical fellows and faculty from 13 US training institutions developed consensus needs, goals, and objectives, recruited presenters, and generated a multidisciplinary COVID-19 curriculum. Weekly Zoom conferences consisted of two trainee-led instructional segments and a trainee-moderated faculty Q&A panel. Hematology-oncology training program faculty and trainees were the targeted audience. Leadership evaluations consisted of anonymized baseline and concluding mixed methods surveys. Presenter evaluations consisted of session debriefs and two structured focus groups. Conference evaluations consisted of attendance, demographics, and pre- or postmultiple-choice questions on topic learning objectives. RESULTS: In 6 weeks, the initiative produced five conferences: antivirals, anticoagulation, pulmonology, provider resilience, and resource scarcity ethics. The average attendance was 100 (range 57-185). Among attendees providing both pre- and postconference data, group-level knowledge appeared to increase: antiviral (n = 46) pre-/postcorrect 82.6%/97.8% and incorrect 10.9%/2.2%, anticoagulation (n = 60) pre-/postcorrect 75%/93.3% and incorrect 15%/6.7%, and pulmonary (n = 21) pre-/postcorrect 66.7%/95.2% and incorrect 33.3%/4.8%. Although pulmonary management comfort appeared to increase, comfort managing of antivirals and anticoagulation was unchanged. At the conclusion of the pilot, leadership trainees reported improved self-confidence organizing multi-institutional collaborations, median (interquartile range) 58.5 (50-64) compared with baseline 34 (26-39), but did not report improved confidence in other educational or leadership skills. CONCLUSION: During crisis, trainees built a multi-institutional virtual education platform for the purposes of sharing pandemic experiences and knowledge. Accomplishment of initiative goals was mixed. Lessons learned from the process and goals may improve future disaster educational initiatives.

Take 10: A Resident Well-Being Initiative and Burnout Mitigation Strategy.

OBJECTIVE: Physician training is associated with stressors which contribute to burnout. Individual and institutional level strategies can be employed to address resident burnout; however, time is an often-reported barrier in initiating recommended well-being activities. We hypothesize that brief bursts of well-being activities that are conducive to a resident schedule can mitigate burnout. DESIGN: This is a prospective observational study following burnout after implementation of an institution-wide, well-being initiative called "Take 10." SETTING: In the present study, the "Take 10" initiative, meditating or exercising for a minimum of 10 minutes per day 3 times a week, was encouraged at Vanderbilt University Medical Center, a tertiary care center in Nashville, Tennessee. PARTICIPANTS: Following implementation of the initiative, 254 residents from surgical, procedural, and non-procedural specialties were invited to complete surveys assessing compliance with encouraged "Take 10" activities as well as rates of burnout over a 5-month period. A total of 201 surveys were completed during the study period. RESULTS: Overall, burnout rates were worse for females (Odds Ratio [OR] = 3.7 | Confidence Interval [CI] = 1.57, 9.05), better for those living with others (OR = 0.22 | CI = 0.07, 0.64), and better for those participating in "Take 10" initiatives (OR = 0.71 | CI = 0.58, 0.86). There was a significant difference in resident-reported burnout (Control = 85.3% vs Intervention = 58.2% | p < 0.01) and Resident Well-Being Index score (Control = 3.73 vs Intervention=2.93 | p < 0.01), when "Take 10" initiatives were employed. CONCLUSIONS: "Take 10" is a low cost and low intensity initiative for individuals and programs to use to mitigate burnout.

Becoming Active Bystanders and Advocates: Teaching Medical Students to Respond to Bias in the Clinical Setting.

INTRODUCTION: Incidents of bias and microaggressions are prevalent in the clinical setting and are disproportionately experienced by racial minorities, women, and medical students. These incidents contribute to burnout. Published efforts to address these incidents are growing, but gaps remain regarding the long-term efficacy of these curricular models. We developed and longitudinally evaluated a workshop that taught medical students a framework to respond to incidents of bias or microaggressions. METHODS: In October 2019, 102 Vanderbilt core clerkship medical students participated in an hour-long, interactive, case-based workshop centered around the 3 D's response behavior framework: (1) direct, (2) distract, and (3) delegate. Participants were surveyed before and after the training, and both qualitative and quantitative data were collected. A refresher workshop was offered 8 months later, which added two additional D's: delay and display discomfort. RESULTS: After the workshop, respondents' knowledge of the assessed topics improved significantly, as did their confidence in addressing both personally experienced and witnessed incidents. Respondents initially indicated a high likelihood of using response behaviors to address incidents. The workshop did not consistently modify behavioral responses to experienced or witnessed incidents. Ninety-one percent of respondents agreed the workshop was effective. DISCUSSION: This workshop provided an effective curriculum to sustainably improve participant knowledge and confidence in responding to incidents of bias and microaggressions. This resource can be adopted by educators at other institutions.

Factors influencing precision medicine knowledge and attitudes.

Precision medicine holds great promise for improving health and reducing health disparities that can be most fully realized by advancing diversity and inclusion in research participants. Without engaging underrepresented groups, precision medicine could not only fail to achieve its promise but also further exacerbate the health disparities already burdening the most vulnerable. Yet underrepresentation by people of non-European ancestry continues in precision medicine research and there are disparities across racial groups in the uptake of precision medicine applications and services. Studies have explored possible explanations for population differences in precision medicine participation, but full appreciation of the factors involved is still developing. To better inform the potential for addressing health disparities through PM, we assessed the relationship of precision medicine knowledge and trust in biomedical research with sociodemographic variables. Using a series of linear regression models applied to survey data collected in a diverse sample, we analyzed variation in both precision medicine knowledge and trust in biomedical research with socioeconomic factors as a way to understand the range of precision medicine knowledge (PMK) in a broadly representative group and its relationship to trust in research and demographic characteristics. Our results demonstrate that identifying as Black, while significantly PMK, explains only 1.5% of the PMK variance in unadjusted models and 7% of overall variance in models adjusted for meaningful covariates such as age, marital status, employment, and education. We also found a positive association between PMK and trust in biomedical research. These results indicate that race is a factor affecting PMK, even after accounting for differences in sociodemographic variables. Additional work is needed, however, to identify other factors contributing to variation in PMK as we work to increase diversity and inclusion in precision medicine applications.

Knowledge of Obstetric and Neonatal Danger Signs among Community Health Workers in the Rongo Sub-County of Migori County, Kenya: Results of a Community-based Cross-Sectional Survey.

In efforts to reduce maternal and neonatal mortality, it is recommended that all pregnant women be counseled on signs of pregnancy related complications and neonatal illness. In resource limited settings, such counselling may be task-shifted to lay health workers. We conducted a community-based cross-sectional survey of community health workers/volunteers in North and East Kamagambo of the Rongo Sub- County of Migori County, Kenya, between January-April 2018. A survey tool was administered through face-to-face interviews to investigate the level of knowledge of obstetric and neonatal danger signs among community health workers in North Kamagambo after one year of participation in the Lwala program, as well as to evaluate baseline knowledge of community health volunteers in East Kamagambo at the beginning of Lwala's expansion and prior to their receiving training from Lwala. The North Kamagambo group identified more danger signs in each category. The percentage of participants with adequate knowledge in the pregnancy, postpartum, and neonatal categories was significantly higher in North Kamagambo than in East Kamagambo. Sixty percent of participants in North Kamagambo knew 3 or more danger signs in 3 or more categories, compared to 24% of participants in East Kamagambo. Location in North Kamagambo (OR 2.526, p=0.03) and a shorter time since most recent training (OR 2.291, p=0.025) were associated with increased knowledge. Our study revealed varying levels of knowledge among two populations of lay health workers. This study highlights the benefit of frequent trainings and placing greater emphasis on identified gaps in knowledge of the labor and postpartum periods.

Assessing medical student performance of Entrustable Professional Activities: A mixed methods comparison of Co-Activity and Supervisory Scales.

Introduction: Observations of medical student participation in entrustable professional activities (EPAs) provide insight into the student's ability to synthesize competencies across domains and effectively function in different clinical scenarios. Both Supervisory and Co-Activity Assessment Scales have been recommended for use with medical students.Methods: Students were assessed on EPAs during Acting Internships in Medicine and Pediatrics. Two rating scales were modified based on expert review and included throughout the 2017-18 academic year. Statistical analysis was conducted to clarify relationships between the scales. Raters were interviewed to explore their interpretations and response processes.Results: The results of the McNemar test suggest that the scales are different (p-value <.01). Co-activity and Supervisory EPA ratings are related, but not interchangeable. This finding concurs with themes that emerged from response process interviews: (1) the scales are not directly parallel (2) rater preference depends on diverse factors and (3) rater comments are crucial for guiding students' future learning.Conclusion: The modified Chen Supervisory Scale and the modified Ottawa Co-Activity Scales are measuring different aspects of the entrustable professional activity landscape. Both scales can provide useful information to the learner and the assessment system, but they should not be treated as interchangeable assessments.

Effects of Advanced Cardiac Procedure Simulator Training on Learning and Performance in Cardiovascular Medicine Fellows.

BACKGROUND: Simulation-based training has been used in medical training environments to facilitate the learning of surgical and minimally invasive techniques. We hypothesized that integration of a procedural simulation curriculum into a cardiology fellowship program may be educationally beneficial. METHODS: We conducted an 18-month prospective study of cardiology trainees at Vanderbilt University Medical Center. Two consecutive classes of first-year fellows (n = 17) underwent a teaching protocol facilitated by simulated cases and equipment. We performed knowledge and skills evaluations for 3 procedures (transvenous pacing [TVP] wire, intra-aortic balloon pump [IABP], and pericardiocentesis [PC]). The index class of fellows was reevaluated at 18 months postintervention to measure retention. Using nonparametric statistical tests, we compared assessments of the intervention group, at the time of intervention and 18 months, with those of third-year fellows (n = 7) who did not receive simulator-based training. RESULTS: Compared with controls, the intervention cohort had higher scores on the postsimulator written assessment, TVP skills assessment, and IABP skills assessment (P = .04, .007, and .02, respectively). However, there was no statistically significant difference in scores on the PC skills assessment between intervention and control groups (P = .08). Skills assessment scores for the intervention group remained higher than the controls at 18 months (P = .01, .004, and .002 for TVP, IABP, and PC, respectively). Participation rate was 100% (24/24). CONCLUSIONS: Procedural simulation training may be an effective tool to enhance the acquisition of knowledge and technical skills for cardiology trainees. Future studies may address methods to improve performance retention over time.

Competency milestones for medical students: Design, implementation, and analysis at one medical school.

Competency-based assessment seeks to align measures of performance directly with desired learning outcomes based upon the needs of patients and the healthcare system. Recognizing that assessment methods profoundly influence student motivation and effort, it is critical to measure all desired aspects of performance throughout an individual's medical training. The Accreditation Council for Graduate Medical Education (ACGME) defined domains of competency for residency; the subsequent Milestones Project seeks to describe each learner's progress toward competence within each domain. Because the various clinical disciplines defined unique competencies and milestones within each domain, it is difficult for undergraduate medical education to adopt existing GME milestones language. This paper outlines the process undertaken by one medical school to design, implement and improve competency milestones for medical students. A team of assessment experts developed milestones for a set of focus competencies; these have now been monitored in medical students over two years. A unique digital dashboard enables individual, aggregate and longitudinal views of student progress by domain. Validation and continuous quality improvement cycles are based upon expert review, user feedback, and analysis of variation between students and between assessors. Experience to date indicates that milestone-based assessment has significant potential to guide the development of medical students.

Tracheostomy risk factors and outcomes after severe traumatic brain injury.

OBJECTIVE: To determine risk factors associated with tracheostomy placement after severe traumatic brain injury (TBI) and subsequent outcomes among those who did and did not receive a tracheostomy. METHODS: This retrospective cohort study compared adult trauma patients with severe TBI (n = 583) who did and did not receive tracheostomy. A multivariable logistic regression model assessed the associations between age, sex, race, insurance status, admission GCS, AIS (Head, Face, Chest) and tracheostomy placement. Ordinal logistic regression models assessed tracheostomy's influence on ventilator days and ICU LOS. To limit immortal time bias, Cox proportional hazards models assessed mortality at 1, 3 and 12-months. RESULTS: In this multivariable model, younger age and private insurance were associated with increased probability of tracheostomy. AIS, ISS, GCS, race and sex were not risk factors for tracheostomy placement. Age showed a non-linear relationship with tracheostomy placement; likelihood peaked in the fourth decade and declined with age. Compared to uninsured patients, privately insured patients had an increased probability of receiving a tracheostomy (OR = 1.89 [95% CI = 1.09-3.23]). Mortality was higher in those without tracheostomy placement (HR = 4.92 [95% CI = 3.49-6.93]). Abbreviated injury scale-Head was an independent factor for time to death (HR = 2.53 [95% CI = 2.00-3.19]), but age, gender and insurance were not. CONCLUSIONS: Age and insurance status are independently associated with tracheostomy placement, but not with mortality after severe TBI. Tracheostomy placement is associated with increased survival after severe TBI.

Rheumatologic skills development: what are the needs of internal medicine residents?

Given the burden of rheumatic disease in our society and the anticipated future shortage of rheumatologists, all internal medicine (IM) residencies need to train internists who are capable of caring for patients with rheumatic diseases. The objective of this study was to perform a targeted needs assessment of the self-confidence of IM residents in the evaluation and care of patients with rheumatologic diseases. A 16-item, web-based, self-assessed confidence survey tool was administered to participating post graduate year (PGY)1 (N = 83) and PGY3 (N = 37) residents. The categories of questions included self-confidence in performing a rheumatologic history and exam, performing common rheumatologic procedures, ordering and interpreting rheumatologic laboratory tests, and caring for patients with common rheumatologic diseases. Resident demographics, prior rheumatology exposure, and career plans were also queried. PGY3 residents had higher self-assessed confidence than PGY1 residents in all categories. Self-assessed confidence in joint procedures was consistently low in both groups and when compared to other categories. Prior exposure to a rheumatology course or elective was not consistently associated with higher self-assessed confidence ratings across all categories. PGY3 residents showed less interest in rheumatology as a career than PGY1 residents, although the interest in the topic of rheumatology was not statistically different. Our needs assessment shows a low level of self-assessed confidence in rheumatology knowledge and skills among IM residents. Despite improvement with PGY year of training, self-assessed confidence remains low. To improve resident's skills and self-confidence in rheumatology, more curricular innovations are needed. Such innovations should be assessed for overall effectiveness.

Neurologic Functional and Quality of Life Outcomes after TBI: Clinic Attendees versus Non-Attendees.

This investigation describes the relationship between TBI patient demographics, quality of life outcome, and functional status outcome among clinic attendees and non-attendees. Of adult TBI survivors with intracranial hemorrhage, 63 attended our TBI clinic and 167 did not attend. All were telephone surveyed using the Extended-Glasgow Outcome Scale (GOSE), the Quality of Life after Brain Injury (QOLIBRI) scale, and a post-discharge therapy questionnaire. To determine risk factors for GOSE and QOLIBRI outcomes, we created multivariable regression models employing covariates of age, injury characteristics, clinic attendance, insurance status, post-discharge rehabilitation, and time from injury. Compared with those with severe TBI, higher GOSE scores were identified in individuals with both mild (odds ratio [OR]=2.0; 95% confidence interval [CI]: 1.1-3.6) and moderate (OR=4.7; 95% CI: 1.6-14.1) TBIs. In addition, survivors with private insurance had higher GOSE scores, compared with those with public insurance (OR=2.0; 95% CI: 1.1-3.6), workers' compensation (OR=8.4; 95% CI: 2.6-26.9), and no insurance (OR=3.1; 95% CI: 1.6-6.2). Compared with those with severe TBI, QOLIBRI scores were 11.7 points (95% CI: 3.7-19.7) higher in survivors with mild TBI and 17.3 points (95% CI: 3.2-31.5) higher in survivors with moderate TBI. In addition, survivors who received post-discharge rehabilitation had higher QOLIBRI scores by 11.4 points (95% CI: 3.7-19.1) than those who did not. Survivors with private insurance had QOLIBRI scores that were 25.5 points higher (95% CI: 11.3-39.7) than those with workers' compensation and 16.8 points higher (95% CI: 7.4-26.2) than those without insurance. Because neurologic injury severity, insurance status, and receipt of rehabilitation or therapy are independent risk factors for functional and quality of life outcomes, future directions will include improving earlier access to post-TBI rehabilitation, social work services, affordable insurance, and community resources.

Burst suppression on processed electroencephalography as a predictor of postcoma delirium in mechanically ventilated ICU patients.

OBJECTIVES: Many patients, due to a combination of illness and sedatives, spend a considerable amount of time in a comatose state that can include time in burst suppression. We sought to determine if burst suppression measured by processed electroencephalography during coma in sedative-exposed patients is a predictor of post-coma delirium during critical illness. DESIGN: Observational convenience sample cohort. SETTING: Medical and surgical ICUs in a tertiary care medical center. PATIENTS: Cohort of 124 mechanically ventilated ICU patients. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: Depth of sedation was monitored twice daily using the Richmond Agitation-Sedation Scale and continuously monitored by processed electroencephalography. When noncomatose, patients were assessed for delirium twice daily using Confusion Assessment Method for the ICU. Multiple logistic regression and Cox proportional hazards regression were used to assess associations between time in burst suppression and both prevalence and time to resolution of delirium, respectively, adjusting for time in deep sedation and a principal component score consisting of Acute Physiology and Chronic Health Evaluation II score and cumulative doses of sedatives while comatose. Of the 124 patients enrolled and monitored, 55 patients either never had coma or never emerged from coma, yielding 69 patients for whom we performed these analyses; 42 of these 69 (61%) had post-coma delirium. Most patients had burst suppression during coma, although often short-lived (median [interquartile range] time in burst suppression, 6.4 [1-58] min). After adjusting for covariates, even this short time in burst suppression independently predicted a higher prevalence of post-coma delirium (odds ratio, 4.16; 95% CI, 1.27-13.62; p = 0.02) and a lower likelihood (delayed) resolution of delirium (hazard ratio, 0.78; 95% CI, 0.53-0.98; p = 0.04). CONCLUSIONS: Time in burst suppression during coma, as measured by processed electroencephalography, was an independent predictor of prevalence and time to resolution of postcoma/post-deep sedation delirium. These findings of this single-center investigation support lighter sedation strategies.

Long-term mortality associated with acute kidney injury in children following congenital cardiac surgery.

OBJECTIVE: Children undergoing congenital cardiac surgery (CCS) are at increased risk for acute kidney injury (AKI) due to a number of factors. Recent evidence suggests AKI may influence mortality beyond the immediate postoperative period and hospitalization. We sought to determine the association between renal failure and longer-term mortality in children following CCS. METHODS: Our Study population included all patients that underwent cardiac surgery at our institution during a period of 3 years from 2004 through 2006. The primary definition of acute renal injury was based on pRIFLE using estimated creatinine clearance (pRIFLE eCCL). RESULTS: Predictors of mortality. Age, single ventricle status, and renal failure as defined by pRIFLE stage F were associated with mortality. The hazard ratio for a patient with renal failure as defined by pRIFLE stage F was 3.82 (CI 1.89-7.75). Predictors of AKI as defined by pRIFLE. Duration of cardiopulmonary bypass (CPB) and age were the only variables associated with pRIFLE by univariate analysis. However, in the ordinal or survival model, age was the only variable associated with renal failure as defined by pRIFLE. As patient age increases from 0.30 to 3.5 years, the risks of having renal injury (pRIFLE stage I) or failure (pRIFLE stage F) decreases (OR 0.44, CI 0.21-0.94). CONCLUSION: Mortality risk following CCS is increased in younger patients and those experiencing postoperative renal failure as defined by pRIFLE for a period of time that extends well beyond the immediate postoperative period and the time of hospitalization.