A Web-Based Reporting System for Reviewing Local Practice Patterns of Anesthesiologists Derived from the Electronic Medical Record.

After completion of training, anesthesiologists may have fewer opportunities to see how colleagues practice, and their breadth of case experiences may also diminish due to specialization. We created a web-based reporting system based on data extracted from electronic anesthesia records that allows practitioners to see how other clinicians practice in similar cases. One year after implementation, the system continues to be utilized by clinicians.

Self-reported Race/Ethnicity and Intraoperative Occult Hypoxemia: A Retrospective Cohort Study.

BACKGROUND: Pulse oximetry is ubiquitous in anesthesia and is generally a reliable noninvasive measure of arterial oxygen saturation. Concerns regarding the impact of skin pigmentation and race/ethnicity on the accuracy of pulse oximeter accuracy exist. The authors hypothesized a greater prevalence of occult hypoxemia (arterial oxygen saturation [Sao2] less than 88% despite oxygen saturation measured by pulse oximetry [Spo2] greater than 92%) in patients undergoing anesthesia who self-reported a race/ethnicity other than White. METHODS: Demographic and physiologic data, including self-reported race/ethnicity, were extracted from a departmental data warehouse for patients receiving an anesthetic that included at least one arterial blood gas between January 2008 and December 2019. Calculated Sao2 values were paired with concurrent Spo2 values for each patient. Analysis to determine whether Black, Hispanic, Asian, or Other race/ethnicities were associated with occult hypoxemia relative to White race/ethnicity within the Spo2 range of 92 to 100% was completed. RESULTS: In total, 151,070 paired Sao2-Spo2 readings (70,722 White; 16,011 Black; 21,223 Hispanic; 8,121 Asian; 34,993 Other) from 46,253 unique patients were analyzed. The prevalence of occult hypoxemia was significantly higher in Black (339 of 16,011 [2.1%]) and Hispanic (383 of 21,223 [1.8%]) versus White (791 of 70,722 [1.1%]) paired Sao2-Spo2 readings (P < 0.001 for both). In the multivariable analysis, Black (odds ratio, 1.44 [95% CI, 1.11 to 1.87]; P = 0.006) and Hispanic (odds ratio, 1.31 [95% CI, 1.03 to 1.68]; P = 0.031) race/ethnicity were associated with occult hypoxemia. Asian and Other race/ethnicity were not associated with occult hypoxemia. CONCLUSIONS: Self-reported Black and Hispanic race/ethnicity are associated with a greater prevalence of intraoperative occult hypoxemia in the Spo2 range of 92 to 100% when compared with self-reported White race/ethnicity.

Visual Analytics to Leverage Anesthesia Electronic Health Record.

BACKGROUND: Visual analytics is the science of analytical reasoning supported by interactive visual interfaces called dashboards. In this report, we describe our experience addressing the challenges in visual analytics of anesthesia electronic health record (EHR) data using a commercially available business intelligence (BI) platform. As a primary outcome, we discuss some performance metrics of the dashboards, and as a secondary outcome, we outline some operational enhancements and financial savings associated with deploying the dashboards. METHODS: Data were transferred from the EHR to our departmental servers using several parallel processes. A custom structured query language (SQL) query was written to extract the relevant data fields and to clean the data. Tableau was used to design multiple dashboards for clinical operation, performance improvement, and business management. RESULTS: Before deployment of the dashboards, detailed case counts and attributions were available for the operating rooms (ORs) from perioperative services; however, the same level of detail was not available for non-OR locations. Deployment of the yearly case count dashboards provided near-real-time case count information from both central and non-OR locations among multiple campuses, which was not previously available. The visual presentation of monthly data for each year allowed us to recognize seasonality in case volumes and adjust our supply chain to prevent shortages. The dashboards highlighted the systemwide volume of cases in our endoscopy suites, which allowed us to target these supplies for pricing negotiations, with an estimated annual cost savings of $250,000. Our central venous pressure (CVP) dashboard enabled us to provide individual practitioner feedback, thus increasing our monthly CVP checklist compliance from approximately 92% to 99%. CONCLUSIONS: The customization and visualization of EHR data are both possible and worthwhile for the leveraging of information into easily comprehensible and actionable data for the improvement of health care provision and practice management. Limitations inherent to EHR data presentation make this customization necessary, and continued open access to the underlying data set is essential.

System for Storage, Dispensing, and Tracking Expiration of Electrocardiography Electrodes.

Electrocardiography electrodes have expiration dates that are foreshortened once the manufacturer's packaging is opened. A system is described for storing and dispensing these perishable electrodes while tracking their new expiration date for safety and regulatory purposes.

Intraoperative Cardiac Arrest During Adult Liver Transplantation: Incidence and Risk Factor Analysis From 7 Academic Centers in the United States.

BACKGROUND: Intraoperative cardiac arrest (ICA) has a reported frequency of 1 in 10,000 anesthetics but has a much higher estimated incidence in orthotopic liver transplantation (OLT). Single-center studies of ICA in OLT are limited by small sample size that prohibits multivariable regression analysis of risks. METHODS: Utilizing data from 7 academic medical centers, we performed a retrospective, observational study of 5296 adult liver transplant recipients (18-80 years old) between 2000 and 2017 to identify the rate of ICA, associated risk factors, and outcomes. RESULTS: ICA occurred in 196 cases (3.7% 95% confidence interval [CI], 3.2-4.2) and mortality occurred in 62 patients (1.2%). The intraoperative mortality rate was 31.6% in patients who experienced ICA. In a multivariable generalized linear mixed model, ICA was associated with body mass index (BMI) <20 (odds ratio [OR]: 2.04, 95% CI, 1.05-3.98; P = .0386), BMI ≥40 (2.16 [1.12-4.19]; P = .022), Model for End-Stage Liver Disease (MELD) score: (MELD 30-39: 1.75 [1.09-2.79], P = .02; MELD ≥40: 2.73 [1.53-4.85], P = .001), postreperfusion syndrome (PRS) (3.83 [2.75-5.34], P < .001), living donors (2.13 [1.16-3.89], P = .014), and reoperation (1.87 [1.13-3.11], P = .015). Overall 30-day and 1-year mortality were 4.18% and 11.0%, respectively. After ICA, 30-day and 1-year mortality were 43.9% and 52%, respectively, compared to 2.6% and 9.3% without ICA. CONCLUSIONS: We established a 3.7% incidence of ICA and a 1.2% incidence of intraoperative mortality in liver transplantation and confirmed previously identified risk factors for ICA including BMI, MELD score, PRS, and reoperation and identified new risk factors including living donor and length of surgery in this multicenter retrospective cohort. ICA, while rare, is associated with high intraoperative mortality, and future research must focus on therapy to reduce the incidence of ICA.

Analysis of urgent/emergent conversions from monitored anesthesia care to general anesthesia with airway instrumentation.

BACKGROUND: Monitored Anesthesia Care (MAC) is an anesthetic service involving the titration of sedatives/analgesics to achieve varying levels of sedation while avoiding general anesthesia (GA) and airway instrumentation. The goal of our study was to determine the overall incidence of conversion from MAC to general anesthesia with airway instrumentation and elucidate reasons and risk factors for conversion. METHODS: In this retrospective observational study, all non-obstetric adult patients who received MAC from July 2002 to July 2015 at Mount Sinai Hospital were electronically screened for inclusion via a clinical database. Patient, procedure, anesthetic, and practitioner data were all collected and analyzed to generate descriptive analyses. Subsequent univariate and multivariate analyses were used to identify specific risk factors associated with conversion to GA. RESULTS: Overall, 0.50% (1097/219,061) of MAC cases were converted to GA. Approximately half of conversions were due to the patient's "intolerance" of MAC (with or without failed regional anesthesia), while the other half were due to physiologic derangements. Body mass index, male sex, American Society of Anesthesiologists Physical Status Classification, anesthesia team composition, and surgical specialty were all associated with risk of conversion to GA. CONCLUSIONS: This is one of the first and largest retrospective studies aimed at identifying reasons and risk factors associated with the conversion of MAC to GA. These findings may be used to help better anticipate or prevent these events.

Efficacy and Usability of a Novel Barrier Device for Preventing Injection Port Contamination: A Pilot Simulation Study.

Contamination of intravenous (IV) ports and stopcocks has been associated with postoperative infections. We tested the usability and efficacy of a novel passive shielding device to prevent such contamination even in the absence of hand hygiene or port disinfection. In a desktop setting with deliberately contaminated hands, qualitative port contamination was detected after 5/60 (8.3%; 95% confidence interval [CI], 2.8-18.4) control port injections versus 0/60 (0%; 95% CI, 0-6.0) shielded injections (P = .025). In clinical simulations with a quantitative bioburden assay (measured in relative light units [RLUs]), median (interquartile range [IQR]) postsimulation bioburden was 46 (32-53) vs 27 (21-42) RLU for the control versus intervention groups (P = .036), yielding a median shift of -13 RLU (95% CI, -2 to -26) in favor of the shielding. Usability of the device was acceptable to practitioners.

An Automated Critical Event Screening and Notification System to Facilitate Preanesthesia Record Review.

BACKGROUND: Anesthesia information management systems make prior anesthesia records readily available for review when patients return for a subsequent procedure but may create a problem of too much documentation to review in a limited amount of time. We implemented a screening tool to facilitate the identification of critical documentation for review. METHODS: An algorithm was developed to electronically search prior anesthesia records for predefined critical events and flag records containing these events. Our web-based daily case schedule was modified to contain a warning message for any patient on the schedule who has a prior record flagged by the system, in addition to a preexisting hyperlink to view the relevant record. A retrospective analysis was performed to determine the impact of the warning messages on the frequency with which the care team reviewed these records before providing anesthesia care. RESULTS: The screening algorithm flagged 13% of archived cases as critical. There were 3329 and 3369 cases in the 6 months before and after system implementation, respectively, that had prior critical records available for review at that time. One or more of these critical records were viewed before the subsequent case start in 39% vs 59% (P < .01) of cases in the pre- versus postimplementation periods. Subgroup analysis revealed that the increase was greatest for attending anesthesiologists working alone. CONCLUSIONS: We created a system to automatically detect critical events in prior anesthesia records for the purpose of forewarning the anesthesia care team when the same patient returns for another procedure. Inclusion of these warnings on the daily case schedule was associated with an increased frequency of preanesthesia review of old records.

A Real-Time Decision Support System for Anesthesiologist End-of-Shift Relief.

A decision support system using recent data about work hours and real-time data about relief events was developed to guide anesthesiologist end-of-shift relief decisions in an effort to promote a relief order that prioritized relief for those who had recently worked later than others. After system implementation, there were fewer deviations from this idealized order of relief, and early relief was more evenly distributed.

Ventilator Data Extraction with a Video Display Image Capture and Processing System.

Medical hardware and software device interoperability standards are not uniform. The result of this lack of standardization is that information available on clinical devices may not be readily or freely available for import into other systems for research, decision support, or other purposes. We developed a novel system to import discrete data from an anesthesia machine ventilator by capturing images of the graphical display screen and using image processing to extract the data with off-the-shelf hardware and open-source software. We were able to successfully capture and verify live ventilator data from anesthesia machines in multiple operating rooms and store the discrete data in a relational database at a substantially lower cost than vendor-sourced solutions.

Accuracy of Vasopressor Documentation in Anesthesia Records.

OBJECTIVES: To determine the accuracy of documentation of vasoactive medication administration in anesthetic records. DESIGN: Cross-sectional observational study. SETTING: Single academic center. PARTICIPANTS: Attending and resident anesthesiologists. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: An auditor inspected the anesthesia worktop between cases looking for partially used syringes of vasopressors, and the anesthesia record for the preceding case was reviewed for entries related to administration of these agents. In 100 anesthesia records for cases in which a phenylephrine and/or ephedrine bolus was apparently administered, 26% (95% CI: 18-35%) had full documentation and 36% (95% CI: 27-46%) had no documentation. In the 38% of cases that had partial documentation, a median of 50% (interquartile range 33%, 67%) of the total amounts given were documented. CONCLUSIONS: The authors found complete or partial omission of documentation of bolus doses of vasopressors in anesthesia records in the majority of cases in which such drugs were given. This finding has the potential to jeopardize the data integrity of local and pooled case registries and conclusions of retrospective studies that utilize these data.

A System to Improve Compliance with Electrocardiography Electrode Expiration Tracking.

BACKGROUND: Electrocardiography (ECG) electrodes require special expiration tracking after the manufacturer's packaging is opened. Compliance with this requirement, however, can be inconsistent. The authors tested the efficacy of a device that provides for expiration tracking of bulk-packaged electrodes to improve compliance. METHODS: The device tested is a bin with an automated countdown timer that could be used for storing and dispensing open ECG electrodes. Seven operating rooms were inspected three times each before and after implementation of the device. Compliance with expiration dating of open electrodes was recorded for each inspection. RESULTS: Compliance was found in 3 of the 21 (14.3%) baseline inspections. Following implementation of the devices, compliance was found in 20 of 21 (95.2%) inspections. This increase in compliance was statistically significant (p < 0.01). CONCLUSION: A storage and dispensing device with automated countdown timer significantly improved compliance with expiration dating regulations for bulk-packaged ECG electrodes. It also has the potential to reduce supply cost, packaging waste, and inconvenience compared with individually wrapped electrodes.

Race and Intention to Breastfeed are the Strongest Predictors of Exclusive Breastfeeding: a Retrospective Study.

INTRODUCTION: Racial disparities exist in maternal and neonatal care including breastfeeding (BF). The purpose of this study is to assess factors associated with BF success by race with a specific focus on pre-birth BF plan and time duration from birth until initiation of skin-to-skin contact and from birth to the first feed or breastfeed. METHODS: A database query of our electronic medical records was performed for all patients who had a vaginal delivery that met our study criteria. Demographic information, pre-delivery feeding plan (exclusive BF, exclusive formula, or mixed), time to first feed and first breastfeed, and time to skin-to-skin were compared among different postpartum feeding practices (exclusive BF, exclusive formula, mixed), and compared across race/ethnic groups using ANOVA, Chi-square, and Fisher's exact statistical tests as appropriate. Logistic regression was used to investigate the independent effect of each variable on exclusive BF. RESULTS: The study analyzed 12,578 deliveries. There was a significant difference in intended feeding plans among the different racial groups. Approximately 61% of Black patients intended to exclusively BF as compared to 79% of the other groups. Overall, 3994 (32%) patients breastfed exclusively, 872 (7%) exclusively used formula, and 7712 (61%) used a mix of breast and formula. White patients were most likely to exclusively BF (35%) and Black patients were least likely (21%), p < 0.001. Our model found that self-identified race and pre-delivery feeding plan were the strongest predictors of exclusive BF. CONCLUSIONS: The main findings of this study are that self-identified race and intention to BF are the strongest predictors of exclusive BF. Black patients intend to BF at a significantly lower rate than other racial groups, for reasons not determined by this study, and this affects feeding practice. Our findings are notable because prehospital intention to BF can be modified by outreach, education, and changes to in-hospital practices.