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Hanson J, Hui M, Strawbridge JC, Chatterjee S, Goodyear K, Giaconi JA, Tsui I. High Rates of Eye Surgery Cancellation in Veterans Related to Mental Health. Mil Med 2024; 189:e2588-e2593. [PMID: 38687601 DOI: 10.1093/milmed/usae230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Revised: 04/10/2024] [Accepted: 04/16/2024] [Indexed: 05/02/2024] Open
Abstract
INTRODUCTION Approximately 9 million veterans receive health care at the Veterans Health Administration, many of whom have psychiatric illnesses. The military continues to have higher rates of psychiatric illness compared to the civilian population. Having a diagnosis such as posttraumatic stress disorder or depression may create challenges in using health care services, such as surgery. The aim of this study was to evaluate eye surgery cancellation, risk factors for cancellation, and areas for intervention within the VA. MATERIALS AND METHODS This was a single-center retrospective cohort study. The Veteran Health Information Systems and Technology Architecture were queried to identify all surgical requests at the West Los Angeles VA in 2019. Data collection included sociodemographic information and comorbid medical conditions, including psychiatric illness. Exploratory analyses using univariate logistic regression were used to evaluate factors associated with surgery cancellation. RESULTS A total of 1,115 surgical requests were identified with a cancellation rate of 23.7% (n = 270). Sociodemographic factors were similar between those with completed and cancelled surgery. However, having a psychiatric diagnosis correlated with surgery cancellation. For all subspecialties, patients with schizophrenia were more likely to have cancellation (odds ratio [OR], 2.53, P = .04). For retina surgery, patients with posttraumatic stress disorder were more likely to have cancellation (OR, 4.23, P = .01). Glaucoma patients with anxiety (OR, 5.78, P = .05) and depression (OR, 4.05, P = .04) were more likely to have cancellation. CONCLUSIONS There was a significant amount of eye surgery cancellations in veterans with variation by subspecialty and comorbid conditions. Having a psychiatric illness was correlated with increased rates of surgery cancellation amongst veterans. Areas to improve surgical utilization include risk stratification and increased support of vulnerable patients before surgery.
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Affiliation(s)
- Justin Hanson
- Department of Ophthalmology, David Geffen School of Medicine, Stein Eye Institute and Doheny Eye Institute, University of California, Los Angeles, CA 90095, USA
| | - Maggie Hui
- Department of Ophthalmology, David Geffen School of Medicine, Stein Eye Institute and Doheny Eye Institute, University of California, Los Angeles, CA 90095, USA
| | - Jason C Strawbridge
- Department of Ophthalmology, David Geffen School of Medicine, Stein Eye Institute and Doheny Eye Institute, University of California, Los Angeles, CA 90095, USA
| | - Sayan Chatterjee
- Department of Ophthalmology, David Geffen School of Medicine, Stein Eye Institute and Doheny Eye Institute, University of California, Los Angeles, CA 90095, USA
| | - Kendall Goodyear
- Department of Ophthalmology, David Geffen School of Medicine, Stein Eye Institute and Doheny Eye Institute, University of California, Los Angeles, CA 90095, USA
| | - JoAnn A Giaconi
- Department of Ophthalmology, David Geffen School of Medicine, Stein Eye Institute and Doheny Eye Institute, University of California, Los Angeles, CA 90095, USA
- Division of Ophthalmology, VA Greater Los Angeles Healthcare System, Los Angeles, CA 90073 , USA
| | - Irena Tsui
- Department of Ophthalmology, David Geffen School of Medicine, Stein Eye Institute and Doheny Eye Institute, University of California, Los Angeles, CA 90095, USA
- Division of Ophthalmology, VA Greater Los Angeles Healthcare System, Los Angeles, CA 90073 , USA
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Zhao X, Zhao Q, Wu Y, Cheng S, Wang C, Meng L, Gu X, Chen Y. Cancellation of the more complicated ophthalmic inpatient surgeries in a tertiary general hospital: a 10-year retrospective study. Front Med (Lausanne) 2024; 11:1406140. [PMID: 39267968 PMCID: PMC11390677 DOI: 10.3389/fmed.2024.1406140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Accepted: 08/19/2024] [Indexed: 09/15/2024] Open
Abstract
Background Although ophthalmic ambulatory surgeries are less costly and may enhance the more efficient utilization of hospital resources, inpatient surgeries were preferable alternatives for patients with complicated eye diseases or poor general health. However, the incidence, causes, and related factors of ophthalmic inpatient surgery cancellation remained largely unknown. Methods The electronic medical records of ophthalmic inpatient surgeries between January 2012 and December 2022 was retrospectively reviewed. Cancellation-related factors were explored using multivariate logistic regression analysis and the reasons of cancellation were also evaluated. Results In total, 820 cancelled surgeries and 42,073 performed surgeries were included, with a cancellation rate of 1.9%. Any other ocular comorbidities were risk factors for cancellation (odds ratio (OR) 1.872, 95% confidence intervals (CI) 1.504-2.331; p < 0.001), while older age (OR 0.990, 95% CI 0.986-0.995; p < 0.001), local residence (OR 0.809, 95% CI 0.692-0.947; p = 0.008), any systemic comorbidities (OR 0.740, 95% CI 0.616-0.889; p = 0.001), and previous history of surgeries (OR 0.403, 95% CI 0.341-0.476; p < 0.001) were negatively associated with surgery cancellation. The top two categorical cancellation reasons were medical factors (508, 62.0%) and patient-related factors (285, 34.8%). "Patient/family refused surgery" (127, 15.5%), "acute conjunctivitis or uveitis relapse" (103, 12.6%), and "ocular condition improved and procedure no longer indicated" (71, 8.7%) were the three most common single cancellation reasons. Conclusion Any other ocular comorbidities, younger age, no systemic comorbidities, non-local residence, and no past surgical history were related factors for ophthalmic inpatient surgery cancellation. The majority of cancellations were due to patient-related or medical factors. Great importance should be attached to the cancellation of the more complicated inpatient surgeries and further efforts are warranted to explore how to reduce cancellation.
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Affiliation(s)
- Xinyu Zhao
- Department of Ophthalmology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
- Key Laboratory of Ocular Fundus Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Qing Zhao
- Department of Ophthalmology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
- Key Laboratory of Ocular Fundus Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Yanfang Wu
- Department of Ophthalmology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
- Key Laboratory of Ocular Fundus Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Shiyu Cheng
- Department of Ophthalmology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
- Key Laboratory of Ocular Fundus Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Chuting Wang
- Department of Ophthalmology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
- Key Laboratory of Ocular Fundus Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Lihui Meng
- Department of Ophthalmology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
- Key Laboratory of Ocular Fundus Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Xingwang Gu
- Department of Ophthalmology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
- Key Laboratory of Ocular Fundus Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Youxin Chen
- Department of Ophthalmology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
- Key Laboratory of Ocular Fundus Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
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Yu G, Michalak S, Mishra K, Yu M, Pan C. Trends of Ophthalmic Surgery Cancellations at a County Hospital Before and During COVID-19: A 10-Year Retrospective Study. Semin Ophthalmol 2024; 39:305-311. [PMID: 38073109 DOI: 10.1080/08820538.2023.2293032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 11/23/2023] [Indexed: 03/28/2024]
Abstract
PURPOSE Despite several publications on ophthalmic surgical cancellations discussing preventative causes in academic institutions, there remains a paucity of similar studies for safety-net hospitals. This study analyzed cancellation rates at a county hospital over a 10-year period. METHODS This retrospective, open cohort study investigated a total of 11,350 surgeries scheduled at a tertiary-level county hospital between January 1, 2012 and December 31, 2021. Surgical cancellation reasons were collected from chart review and categorized into eight groups to allow for analyses. Cancellation rates were then calculated per year and per subspecialty. The primary statistical analyses were paired, 2-tailed t test and χ2 test. RESULTS The most common reason for cancellation overall was institution-related (1065 surgeries), which was also the most common reason per year from 2012 to 2019 (range: 37.4% - 60.6%). In 2020, during COVID-19 stay-at-home mandates, the most common reason became COVID-related rescheduling, and in 2021, it was patient-driven. The cancellation rate in 2020 was significantly higher than 2019 (+9.27%,95% CI:4.96%-13.6%,p = .05), and significantly lower from 2021 to 2020 (-22.8%,95% CI:-26.8%-(-)18.7%,p = .001). Pediatric surgery had the highest cancellation rate overall (36.4%), but oculoplastics had the highest cancellation rate in 2020 (48.9%). CONCLUSION The most common reason for cancellation over the 10-year period was institution-related, in contrast to other publications based in academic centers. The study also had a higher cancellation rate than previously reported, again suggesting the difference between county and academic centers. The COVID-19 pandemic had a significant impact on cancellations, even after the COVID-19 stay-at-home orders were eased.
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Affiliation(s)
- Gina Yu
- Department of Ophthalmology, Byers Eye Institute, Stanford University School of Medicine, Palo Alto, CA USA
- Division of Ophthalmology, Department of Surgery, Santa Clara Valley Medical Center, San Jose, CA USA
| | - Suzanne Michalak
- Department of Ophthalmology, Byers Eye Institute, Stanford University School of Medicine, Palo Alto, CA USA
- Division of Ophthalmology, Department of Surgery, Santa Clara Valley Medical Center, San Jose, CA USA
| | - Kapil Mishra
- Department of Ophthalmology, Byers Eye Institute, Stanford University School of Medicine, Palo Alto, CA USA
- Division of Ophthalmology, Department of Surgery, Santa Clara Valley Medical Center, San Jose, CA USA
| | - Michael Yu
- Department of Ophthalmology, Byers Eye Institute, Stanford University School of Medicine, Palo Alto, CA USA
- Division of Ophthalmology, Department of Surgery, Santa Clara Valley Medical Center, San Jose, CA USA
| | - Carolyn Pan
- Department of Ophthalmology, Byers Eye Institute, Stanford University School of Medicine, Palo Alto, CA USA
- Division of Ophthalmology, Department of Surgery, Santa Clara Valley Medical Center, San Jose, CA USA
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Delavar A, Bu JJ, Radha Saseendrakumar B, Weinreb RN, Baxter SL. Gender Disparities in Depression, Stress, and Social Support Among Glaucoma Patients. Transl Vis Sci Technol 2023; 12:23. [PMID: 38149963 PMCID: PMC10755593 DOI: 10.1167/tvst.12.12.23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 12/14/2023] [Indexed: 12/28/2023] Open
Abstract
Purpose To understand differences in measures of depression, stress, and social support by gender among those diagnosed with glaucoma. Methods We obtained a cohort of glaucoma patients (any type) ages 18 years and over who answered the COVID-19 Participant Experience (COPE) survey of the NIH All of Us Research Program. We analyzed several measures of depression, stress, and social support by gender. Logistic regression was used to evaluate the association among reported stress associated with social distancing, depression (using Patient Health Questionnaire-9 [PHQ-9] scores), and measures of social support by self-reported gender, with men as the reference group. Multivariable models were adjusted for age, race and ethnicity, health insurance status, education, and income. Results Of 3633 glaucoma patients, 56.8% were women. Many patients had a PHQ-9 score > 4 (33.3%), indicating mild, moderate, or severe depression. In multivariable models, women were significantly more likely to report a PHQ-9 score > 4 (odds ratio [OR] = 1.40; 95% confidence interval [CI], 1.20-1.62; P < 0.001) and some or a lot of stress (OR = 1.34; 95% CI, 1.14-1.57; P < 0.001) compared with men. Further, women were significantly less likely to report having help all or most of the time if they needed someone to prepare meals (OR = 0.78; 95% CI, 0.67-0.92; P = 0.002) or perform daily chores (OR = 0.79; 95% CI, 0.67-0.91; P = 0.003) than men. Conclusions Women with glaucoma were more likely to experience depression and stress and were less likely to have social support on some measures than men. Translational Relevance The disproportionate burden of psychosocial factors among women may complicate glaucoma management.
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Affiliation(s)
- Arash Delavar
- Division of Ophthalmology Informatics and Data Science, Viterbi Family Department of Ophthalmology and Shiley Eye Institute, University of California San Diego, La Jolla, CA, USA
- Division of Biomedical Informatics, Department of Medicine, University of California San Diego, La Jolla, CA, USA
- Department of Ophthalmology, Cullen Eye Institute, Baylor College of Medicine, Houston, TX, USA
| | - Jennifer J. Bu
- Division of Ophthalmology Informatics and Data Science, Viterbi Family Department of Ophthalmology and Shiley Eye Institute, University of California San Diego, La Jolla, CA, USA
| | - Bharanidharan Radha Saseendrakumar
- Division of Ophthalmology Informatics and Data Science, Viterbi Family Department of Ophthalmology and Shiley Eye Institute, University of California San Diego, La Jolla, CA, USA
- Division of Biomedical Informatics, Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Robert N. Weinreb
- Division of Ophthalmology Informatics and Data Science, Viterbi Family Department of Ophthalmology and Shiley Eye Institute, University of California San Diego, La Jolla, CA, USA
- Hamilton Glaucoma Center, Viterbi Family Department of Ophthalmology and Shiley Eye Institute, University of California San Diego, La Jolla, CA, USA
| | - Sally L. Baxter
- Division of Ophthalmology Informatics and Data Science, Viterbi Family Department of Ophthalmology and Shiley Eye Institute, University of California San Diego, La Jolla, CA, USA
- Division of Biomedical Informatics, Department of Medicine, University of California San Diego, La Jolla, CA, USA
- Hamilton Glaucoma Center, Viterbi Family Department of Ophthalmology and Shiley Eye Institute, University of California San Diego, La Jolla, CA, USA
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Bheemidi AR, Kailar R, Valentim CCS, Kalur A, Singh RP, Talcott KE. Baseline factors and reason for cancellation of elective ophthalmic surgery. Eye (Lond) 2023; 37:2788-2794. [PMID: 36750587 PMCID: PMC10482885 DOI: 10.1038/s41433-023-02421-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 11/28/2022] [Accepted: 01/23/2023] [Indexed: 02/09/2023] Open
Abstract
OBJECTIVES To determine the baseline risk factors for elective ophthalmic surgery cancellations and characterise the reasons for cancellation. METHODS This is a retrospective, non-randomised study performed at a large tertiary ophthalmic centre. It included a consecutive sample of patients above the age of 18 who had an ophthalmic surgery scheduled at Cole Eye Institute, Cleveland Clinic, OH between January 2012 and December 2019. An automated search pull identified 75,908 scheduled surgeries (63,987 completed and 11,921 cancelled surgeries). Statistical analysis was performed using R (version 3.5.1). Main outcome measures were baseline factors that impact risk for surgery cancellation and reasons for surgery cancellation. RESULTS Analysis was performed on 69,963 scheduled surgeries (57.37% Female, 42.63% Male; Mean age of 62.72 years; 59,959 completed and 10,004 cancelled surgeries). Of the 2384 cancelled surgeries with reasons provided, the most common causes of cancellation were patient refusal (38.42%), patient health condition (18.79%), and rescheduling of surgery (15.27%). Female sex, black race, patient age less than 50 years, non-cataract surgeries, regional mean household income greater than $82,900, Medicare insurance, and geographical distance of less than 10 miles from home to the surgery site were each associated with a significantly increased risk of surgery cancellation (p < 0.01). CONCLUSIONS This study successfully identified several baseline factors predicting elective ophthalmic surgery cancellation. The clinical insights gained from these lines of enquiry may be used to construct models that not only identify patients at greater risk for cancellation but also highlight which interventions have greatest efficacy in preventing ophthalmic surgery cancellations.
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Affiliation(s)
| | - Roshni Kailar
- Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Carolina C S Valentim
- Center for Ophthalmic Bioinformatics, Cole Eye Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Aneesha Kalur
- Center for Ophthalmic Bioinformatics, Cole Eye Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Rishi P Singh
- Center for Ophthalmic Bioinformatics, Cole Eye Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Katherine E Talcott
- Center for Ophthalmic Bioinformatics, Cole Eye Institute, Cleveland Clinic, Cleveland, OH, USA.
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Delavar A, Bu JJ, Radha Saseendrakumar B, Weinreb RN, Baxter SL. Mental health and social support among glaucoma patients enrolled in the NIH All of Us COVID-19 Participant Experience (COPE) survey. BMC Ophthalmol 2023; 23:63. [PMID: 36782129 PMCID: PMC9923653 DOI: 10.1186/s12886-023-02771-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 01/04/2023] [Indexed: 02/15/2023] Open
Abstract
BACKGROUND The COVID-19 pandemic created many challenges for our society. In this study, we explore how measures of mental health, coping strategies, and social support during the pandemic varied by glaucoma status. METHODS A cohort of patients aged 40 and over enrolled in the NIH All of Us Research Program, a nationwide longitudinal cohort, who answered the COVID-19 Participant Experience (COPE) survey was obtained. We analyzed several measures of mental health, coping strategies, and social support used during the early stages of the COVID-19 pandemic. Surveys were recurring and answered from May 2020 to February 2021. Demographics and the most recently answered survey responses were obtained and stratified by glaucoma status. Pearson's Chi-squared tests and multivariable logistic regressions adjusting for age, gender, race, ethnicity, and income were used to generate p-values, odds ratios (ORs) and 95% confidence intervals (CIs) between outcome measures and glaucoma status. RESULTS Of 42,484 patients who responded to All of Us COPE survey items, 2912 (6.9%) had a diagnosis of glaucoma. On Pearson's Chi-squared tests glaucoma patients were less likely to report drinking alcohol (P = 0.003), eating more food than usual (P = 0.004), and using marijuana (P = 0.006) to cope with social distancing than those without a diagnosis of glaucoma. Further, glaucoma patients had lower rates of probable mild, moderate, or severe depression as calculated by Patient Health Questionnaire-9 (PHQ-9) scores (P < 0.001) and had lower rates of reporting some or a lot of stress from social distancing (P < 0.001). However, glaucoma patients were less likely to report having someone to help prepare meals (P = 0.005) or help with daily chores (P = 0.003) if they became sick with COVID-19. In multivariable logistic regression analyses adjusting for confounding factors, no differences were found for measures of mental health or social support. CONCLUSIONS Glaucoma patients did not fare worse on many measures of mental health and coping strategies during the early stages of the COVID-19 pandemic compared those without glaucoma. However, a substantial proportion of glaucoma patients still endorsed stress, social isolation, and probable depression, representing challenges for disease management.
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Affiliation(s)
- Arash Delavar
- Division of Biomedical Informatics, Department of Medicine, University of California San Diego, La Jolla, CA, USA
- Division of Ophthalmology Informatics and Data Science, Viterbi Family Department of Ophthalmology and Shiley Eye Institute, University of California San Diego, 9415 Campus Point Drive MC 0946, La Jolla, CA, 92093, USA
| | - Jennifer J Bu
- Division of Ophthalmology Informatics and Data Science, Viterbi Family Department of Ophthalmology and Shiley Eye Institute, University of California San Diego, 9415 Campus Point Drive MC 0946, La Jolla, CA, 92093, USA
| | - Bharanidharan Radha Saseendrakumar
- Division of Biomedical Informatics, Department of Medicine, University of California San Diego, La Jolla, CA, USA
- Division of Ophthalmology Informatics and Data Science, Viterbi Family Department of Ophthalmology and Shiley Eye Institute, University of California San Diego, 9415 Campus Point Drive MC 0946, La Jolla, CA, 92093, USA
| | - Robert N Weinreb
- Division of Biomedical Informatics, Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Sally L Baxter
- Division of Biomedical Informatics, Department of Medicine, University of California San Diego, La Jolla, CA, USA.
- Division of Ophthalmology Informatics and Data Science, Viterbi Family Department of Ophthalmology and Shiley Eye Institute, University of California San Diego, 9415 Campus Point Drive MC 0946, La Jolla, CA, 92093, USA.
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Laudanski K, Wain J, Pizzini MA. An In-Depth Analysis of Providers and Services of Cancellation in Anesthesia Reveals a Complex Picture after Systemic Analysis. Healthcare (Basel) 2023; 11:healthcare11030357. [PMID: 36766932 PMCID: PMC9914780 DOI: 10.3390/healthcare11030357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 01/02/2023] [Accepted: 01/03/2023] [Indexed: 01/28/2023] Open
Abstract
The variances in operating room (OR) cancellation rates between different service lines and operators within these service lines were assessed by reviewing the electronic medical record (EMR) covering 34,561 cases performed by 199 OR operators in 2018. We assumed that cancellations would differ between different service lines, but the between-operators variance was minimal within the service line. We hypothesized that most variability would be secondary to patient-specific (weekdays, time of year, and national holidays), seasonal and administrative issues. Of 4165 case cancellations, the majority (73.1%) occurred before the patient arrived at the hospital. A total of 60% of all cancellations were within gastroenterology, interventional cardiology, and orthopedics. Cancellation rate variability between surgeons operating within the same service line greatly varied between services from very homogenous to very diverse across providers. The top reasons for cancellation were: date change, canceled by a patient, or "no show". The highest cancellation rates occurred on Mondays and Tuesdays, in January and September, and during weeks associated with national holidays. In summary, cancellation variability must be analyzed at the level of individual specialties, operators, and time variability.
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Affiliation(s)
- Krzysztof Laudanski
- Department of Anesthesiology and Perioperative Care, Mayo Clinic, Rochester, MN 55905, USA
- Correspondence: ; Tel.: +1-(815)-483-4779
| | - Justin Wain
- School of Osteopathic Medicine, Campbell University, Lillington, NC 27546, USA
| | - Mark-Alan Pizzini
- Department of Anesthesiology and Critical Care, Hospital of the University of Pennsylvania, Philadelphia, PA 19104, USA
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