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Wolfe RM, Hant FN, Ishizawar RC, Criscione-Schreiber LG, Jonas BL, O'Rourke KS, Bolster MB. Virtual Learning and Assessment in Rheumatology Fellowship Training: Objective Structured Clinical Examination Revisited. Arthritis Care Res (Hoboken) 2023; 75:2435-2441. [PMID: 37291752 DOI: 10.1002/acr.25170] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 04/27/2023] [Accepted: 06/06/2023] [Indexed: 06/10/2023]
Abstract
OBJECTIVE With the onset of the COVID-19 pandemic, an annual multi-institutional face-to-face rheumatology objective structured clinical examination (ROSCE) was transformed into a virtual format. The educational goals of the virtual ROSCE (vROSCE) were to reproduce the educational value of the previous in-person ROSCE, providing a valuable formative assessment of rheumatology training activities encompassing the 6 Accreditation Council for Graduate Medical Education (ACGME) core competencies for fellows-in-training (FITs). This article describes the novel design, feasibility, and stakeholder value of a vROSCE. METHODS Through an established collaboration of 5 rheumatology fellowship training programs, in February 2021, a vROSCE was created and conducted using a Zoom platform. Station development included learning objectives, FIT instructions, faculty proctor instructions, and a checklist by which to provide structured formative feedback. An anonymous, optional web-based survey was sent to FIT participants to evaluate the experience. RESULTS Twenty-three rheumatology FITs from 5 institutions successfully rotated through 6 stations in the vROSCE. Immediate feedback was given to each FIT using standardized rubrics structured around ACGME core competencies. A total of 65% of FITs (15 of 23) responded to the survey, and 93% of survey respondents agreed or strongly agreed that the vROSCE was a helpful educational activity and identified individualized opportunities for improvement. CONCLUSION A vROSCE is an innovative, feasible, valuable, and well-received educational technology tool. The vROSCE enriched rheumatology FITs' education and offered collaborative learning experiences across institutions.
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Affiliation(s)
- Rachel M Wolfe
- Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Faye N Hant
- Medical University of South Carolina, Charleston
| | | | | | - Beth L Jonas
- University of North Carolina at Chapel Hill, Chapel Hill
| | | | - Marcy B Bolster
- Harvard Medical School and Massachusetts General Hospital, Boston
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Milford SR. Mobile homes in the land of illness: the hospitality and hostility of language in doctor-patient relations. Philos Ethics Humanit Med 2023; 18:2. [PMID: 37041621 PMCID: PMC10091675 DOI: 10.1186/s13010-023-00131-x] [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: 10/04/2022] [Accepted: 02/27/2023] [Indexed: 05/06/2023] Open
Abstract
Illness has a way of disorientating us, as if we are cast adrift in a foreign land. Like strangers in a dessert we seek oasis to recollect ourselves, find refuge and learn to build our own shelters. Using the philosophy of Levinas and Derrida, we can interpret health care providers (HCP), and the sites from which they act (e.g. hospitals), as dwelling hosts that offer hospitality to strangers in this foreign land. While often the dwellings are physical (e.g. hospitals), this is not always the case. Language represents a mobile home of refuge to the sick. Using language the HCP has built a shelter so as to dwell in the land of illness. However, while hospitality is an inviting concept, it also implies hostility. The door that opens may also be slammed shut. This article explores the paradox of the linguistic mobile home offered to patients. It highlights the power of language to construct a safe place in a strange land, but also explores the inherent violence. It ends with an exploration of the ways language can be used by HCP to assist patients to construct their own mobile shelters.
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Affiliation(s)
- Stephen R Milford
- Extra-Ordinary Researcher Department of Theology, North-West University, Potchefstroom, South Africa.
- Researcher at the Institute for Biomedical Ethics, Basel University, Basel, Switzerland.
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Miller AN, Bharathan A, Duvuuri VNS, Navas V, Luceno L, Zraick R, Atmakuri S, Schmidt-Owens M, Deichen M, Ayers T, Thrash K. Use of seven types of medical jargon by male and female primary care providers at a university health center. PATIENT EDUCATION AND COUNSELING 2022; 105:1261-1267. [PMID: 34489148 DOI: 10.1016/j.pec.2021.08.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 08/10/2021] [Accepted: 08/20/2021] [Indexed: 06/13/2023]
Abstract
OBJECTIVES The purposes of this study were to investigate extent and type of jargon use among primary care providers at a university health center, to evaluate the association of jargon use with patient outcomes, and to identify differences in jargon use between male and female providers. METHOD The study employed a causal comparative design. Audio recordings of 87 primary care interviews were transcribed and coded using Pitt and Hendrickson's seven-category medical jargon classification framework. RESULTS Nearly 80% of appointments included at least one instance of unexplained jargon, with an average of more than four uses of jargon per visit. The most frequently used types of jargon were technical terminology and medical vernacular. Acronyms and abbreviations, medicalized English, and unnecessary synonyms were also regularly used. Just under half of distinct jargon terms were explained. Male providers used nearly 50% more jargon per minute than female providers, and they used more technical jargon than did their female colleagues. However, they explained that jargon just as frequently as female providers. CONCLUSIONS Whereas previous studies have frequently limited the operational definition of jargon to two or three types, the comprehensive typology proposed by Pitt and Hendrickson provides a useful tool for identifying a wide range of jargon usage. Future research should examine the outcomes of this range of jargon types in more varied, less educated patient populations, and across different types of healthcare providers. PRACTICE IMPLICATIONS With jargon used on average more than once every four minutes in our sample, and only half of jargon terms explained, medical jargon may be more of a problem even in primary care contexts than providers themselves realize. Male providers especially may want to make efforts to become more conscious of their jargon use and take care to explain terms, in an effort to facilitate more effective patient-provider communication and improved patient outcomes.
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Affiliation(s)
- Ann Neville Miller
- University of Central Florida, 12405 Aquarius Agora Drive, Orlando, FL 32816, United States.
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Rau NM, Basir MA, Flynn KE. Parental understanding of crucial medical jargon used in prenatal prematurity counseling. BMC Med Inform Decis Mak 2020; 20:169. [PMID: 32698793 PMCID: PMC7376726 DOI: 10.1186/s12911-020-01188-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 07/15/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Parent-clinician shared decision making is the recommended model for the care of premature infants; thus, clinicians provide prenatal prematurity counseling to parents in the event of a mother's hospitalization for premature birth. However, parental understanding of medical jargon commonly used during prematurity counseling is unknown. METHODS Within an overall research agenda to develop and test an educational aid for prenatal prematurity education, we designed the Parental Knowledge of Premature Birth questionnaire. To evaluate parental comprehension of the medical jargon contained within the questionnaire, we conducted cognitive interviews, a formal method for evaluating comprehension and response to questionnaire items. Parents were recruited from a Level IV Neonatal Intensive Care Unit; purposeful recruitment ensured diversity with respect to gender, race, literacy level, and child's gestational age. Data collection and analysis followed standard qualitative methods for cognitive interviewing. We report on the insights gained from these cognitive interviews regarding parental understanding of crucial medical jargon commonly used during prenatal prematurity counseling. RESULTS Participants included 10 women and 6 men who ranged in age from 23 to 38 years and represented Black/African-American (38%), Asian (6%), and white (56%) backgrounds. Five participants (31%) had less than a high school education or reading level below 9th grade (Wide Range Achievement Test version 4 reading subtest). In the first round of interviews, parents of all education and literacy levels had difficulty with medical jargon commonly used in prematurity counseling. Terms that parents found difficult to understand included "gestational age", "mild or no developmental problems", and "neonatologist". Modified terms tested in a second round of interviews showed improved comprehension. CONCLUSION Cognitive interviews provided empirical testing of parental understanding of crucial medical jargon and highlighted that language commonly used during prenatal prematurity counseling is not understood by many parents. For parents to participate in shared decision making, plain language should be used to maximize their understanding of medical information.
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Affiliation(s)
- Nicole M Rau
- Department of Pediatrics, Medical College of Wisconsin, 999 N 92nd St, Suite C410, PO Box 1997, Wauwatosa, WI, 53226, USA
| | - Mir A Basir
- Department of Pediatrics, Medical College of Wisconsin, 999 N 92nd St, Suite C410, PO Box 1997, Wauwatosa, WI, 53226, USA
| | - Kathryn E Flynn
- Department of Medicine, Medical College of Wisconsin, 9200 W. Wisconsin Ave. Suite C5500, Milwaukee, WI, 53226, USA.
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Khan SEA, Saeed MA, Batool S, Farman S, Ahmad NM, Hasni SA. A rheumatology curriculum in Pakistan for empowering family physicians and fighting disability. Clin Rheumatol 2019; 39:681-687. [DOI: 10.1007/s10067-019-04797-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 09/09/2019] [Accepted: 09/23/2019] [Indexed: 11/30/2022]
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Pascual-Ramos V, Contreras-Yáñez I, Arce Salinas CA, Saavedra Salinas MA, Del Mercado MVDM, López Zepeda J, Muñoz López S, Vázquez-Mellado J, Amezcua Guerra LM, Fragoso Loyo HE, Villarreal Alarcón MA, Pérez Cristobal M, Rubio Pérez EN, Torres Jiménez AR, Maldonado MDR, Álvarez-Hernández E. Evaluation of medical ethics competencies in rheumatology: local experience during national accreditation process. JOURNAL OF MEDICAL ETHICS 2019; 45:839-842. [PMID: 31604831 DOI: 10.1136/medethics-2019-105717] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 09/18/2019] [Accepted: 09/26/2019] [Indexed: 05/17/2023]
Abstract
INTRODUCTION Rheumatologists are the primary healthcare professionals responsible for patients with rheumatic diseases and should acquire medical ethical competencies, such as the informed consent process (ICP). The objective clinical structured examination is a valuable tool for assessing clinical competencies. We report the performance of 90 rheumatologist trainees participating in a station designed to evaluate the ICP during the 2018 and 2019 national accreditations. METHODS The station was validated and represented a medical encounter in which the rheumatologist informed a patient with systemic lupus erythematosus with clinically active nephritis about renal biopsy. A trained patient-actor and an evaluator were instructed to assess ICP skills (with a focus on kidney biopsy benefits, how the biopsy is done and potential complications) in obtaining formal informed consent, delivering bad news and overall communication with patients. The evaluator used a tailored checklist and form. RESULTS Candidate performance varied with ICP content and was superior for potential benefit information (achieved by 98.9% of the candidates) but significantly reduced for potential complications (37.8%) and biopsy description (42.2%). Only 17.8% of the candidates mentioned the legal perspective of ICP. Death (as a potential complication) was omitted by the majority of the candidates (93.3%); after the patient-actor challenged candidates, only 57.1% of them gave a clear and positive answer. Evaluators frequently rated candidate communications skills as superior (≥80%), but ≥1 negative aspect was identified in 69% of the candidates. CONCLUSIONS Ethical competencies are mandatory for professional rheumatologists. It seems necessary to include an ethics competency framework in the curriculum throughout the rheumatology residency.
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Affiliation(s)
- Virginia Pascual-Ramos
- Immunology and Rheumatology, Instituto Nacional de Ciencia Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Irazú Contreras-Yáñez
- Immunology and Rheumatology, Instituto Nacional de Ciencia Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | | | | | | | | | | | | | | | | | | | | | | | | | - María Del Rocio Maldonado
- Department of Internal Medecine, Rheumatology Unit, Hospital Infantil de México Federico Gómez, Mexico City, Mexico
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Criscione-Schreiber L. Turning Objective Structured Clinical Examinations into Reality. Rheum Dis Clin North Am 2019; 46:21-35. [PMID: 31757285 DOI: 10.1016/j.rdc.2019.09.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Objective structured clinical examinations assess learners "showing how" to perform complex clinical tasks. Devised as summative evaluations, these examinations with immediate feedback are useful formative evaluations to improve learner performance. This review describes how objective structured clinical examinations have been used in rheumatology education. Steps for creating an objective structured clinical examination are discussed. Validity and reproducibility are important considerations, especially for high-stakes summative objective structured clinical examinations. Consideration of the potential benefits in clinical education and their hazards are reviewed. When well-designed, formative objective structured clinical examinations have high educational value for learners and medical educators.
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Affiliation(s)
- Lisa Criscione-Schreiber
- Division of Rheumatology and Immunology, Program for Women in Internal Medicine, Department of Medicine, Duke University School of Medicine, Box 3490 DUMC, 40 Duke Medicine Circle, Durham, NC 27710, USA.
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Aoun M, Sleilaty G, Abou Jaoude S, Chelala D, Moussa R. How do Lebanese patients perceive the ideal doctor based on the CanMEDS competency framework? BMC MEDICAL EDUCATION 2019; 19:399. [PMID: 31664986 PMCID: PMC6821035 DOI: 10.1186/s12909-019-1837-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Accepted: 10/07/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND During their training, Lebanese medical students develop a high medical expertise but are not focusing on other competencies such as communication, collaboration, erudition, professionalism, leadership and health promotion. There is also insufficient data about patients' preference for these skills. This study describes the different weights patients attribute to these physician's competencies. METHODS This is a cross-sectional study based on a questionnaire distributed to 133 Lebanese patients. It included 15 questions assessing how patients prioritize the physician's competencies, with open-ended questions asking them to define "the good doctor". Krippendorff's alpha coefficient was used to analyze the reliability of the competencies' classification. RESULTS One hundred twenty five patients completed the questionnaire in this cross-sectional study. Their mean age was 48 ± 16.76 years. When classifying competencies, 73.6% opted for medical expertise as first choice and 48% put communication as second. Based on the Krippendorff's coefficient, we identified a moderate agreement for the seven choices (alpha = 0.44). In open-ended questions, patients defined the good doctor in 325 answers: 64.3% mentioned medical expertise, 34.1% high ethics and 26.2% communication. CONCLUSIONS This patient-centered study concurs well with the worldwide practice that puts medical expertise at the center of medical education. However Lebanese patients don't perceive equally other competencies and favor professionalism and communication that should be integrated in priority in students' curricula.
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Affiliation(s)
- Mabel Aoun
- School of Medicine, Saint-Joseph University, Beirut, Lebanon
| | | | | | - Dania Chelala
- School of Medicine, Saint-Joseph University, Beirut, Lebanon
| | - Ronald Moussa
- School of Medicine, Saint-Joseph University, Beirut, Lebanon
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Abstract
Patients with inflammatory bowel disease have adopted medical jargon terms of "flare" and "remission," but what they mean by these terms is ill-defined and may have implications for nurse-patient communication and treatment expectancy. The aim of this study was to elicit patients' understanding of "flare" and "remission." Individuals with self-reported inflammatory bowel disease were recruited through social media. A web-based survey, with closed and open-ended questions, was administered. Conventional content analysis was used to evaluate respondents' perceptions of jargon terms. A word cloud was generated to augment analysis by visualization of word use frequency. A majority of the 34 respondents had a symptom-focused understanding and described these terms as alternating states. Various symptoms were understood to signify "flare," which was largely attributed to lifestyle factors. Corroborated by the word cloud, there was rare mention of inflammation or tissue damage. This study demonstrates that an understanding of "flare" and "remission" by patients with inflammatory bowel disease is largely symptom-based. The role of inflammation, medication failure, and targets of inflammatory bowel disease treatment beyond symptom control are not currently well known to patients with inflammatory bowel disease. To create a shared understanding of symptoms and treatment goals between the patient and the nurse, patient education on emerging expectations of inflammatory bowel disease care should be prioritized.
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Links AR, Callon W, Wasserman C, Walsh J, Beach MC, Boss EF. Surgeon use of medical jargon with parents in the outpatient setting. PATIENT EDUCATION AND COUNSELING 2019; 102:1111-1118. [PMID: 30744965 PMCID: PMC6525640 DOI: 10.1016/j.pec.2019.02.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 12/13/2018] [Accepted: 02/01/2019] [Indexed: 05/05/2023]
Abstract
OBJECTIVE Unexplained medical terminology impedes clinician/parent communication. We describe jargon use in a pediatric surgical setting. METHODS We evaluated encounters between parents of children with sleep-disordered breathing (SDB; n = 64) and otolaryngologists (n = 8). Participants completed questionnaires evaluating demographics, clinical features, and parental role in decision-making via a 4-point categorical item. Two coders reviewed consultations for occurrence of clinician and parent utterance of medical jargon. Descriptive statistics established a profile of jargon use, and logistic regression evaluated associations between communication factors with jargon use. RESULTS Unexplained medical jargon was common (mean total utterances per visit = 28.9,SD = 19.5,Range = 5-100), including SDB-specific jargon (M = 8.3,SD = 8.8), other medical terminology (M = 13.9,SD = 12) and contextual terms (M = 3.8,SD = 4). Parents used jargon a mean of 4.3 times (SD = 4.6). Clinicians used more jargon in consults where they perceived parents as having greater involvement in decision-making (OR = 3.4,p < 0.05) and when parents used more jargon (OR = 1.2,p < 0.05). CONCLUSIONS Jargon use in pediatric surgical consultations is common and could serve as a barrier to informed or shared parent decision-making. This study provides a foundation for further research into patterns of jargon use across surgical populations. PRACTICE IMPLICATIONS Results will be integrated into communication training to enhance clinician communication, foster self-awareness in language use, and create strategies to evaluate parental understanding.
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Affiliation(s)
- A R Links
- Johns Hopkins School of Medicine, Department of Otolaryngology-Head and Neck Surgery, Baltimore, MD, United States
| | - W Callon
- Johns Hopkins School of Medicine, Department of Medicine, Baltimore, MD, United States
| | - C Wasserman
- Johns Hopkins School of Medicine, Department of Medicine, Baltimore, MD, United States
| | - J Walsh
- Johns Hopkins School of Medicine, Department of Otolaryngology-Head and Neck Surgery, Baltimore, MD, United States
| | - M C Beach
- Johns Hopkins School of Medicine, Department of Medicine, Baltimore, MD, United States
| | - E F Boss
- Johns Hopkins School of Medicine, Department of Otolaryngology-Head and Neck Surgery, Baltimore, MD, United States.
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Curran ML, Martin EE, Thomas EC, Singh R, Armana S, Kauser A, Zaheer EA, Sherry DD. The pediatric rheumatology objective structured clinical examination: progressing from a homegrown effort toward a reliable and valid national formative assessment. Pediatr Rheumatol Online J 2019; 17:5. [PMID: 30736800 PMCID: PMC6367759 DOI: 10.1186/s12969-019-0308-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Accepted: 02/04/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Of 37 pediatric rheumatology fellowship training programs in the United States, many have three or fewer fellows at a given time, making large-scale assessment of fellow performance difficult. An objective structured clinical examination (OSCE) is a scenario-based simulation method that assesses individual performance, thus indirectly measuring training program effectiveness. This study describes the development and implementation of two national pediatric rheumatology OSCEs and methods used for programmatic improvement. METHODS OSCEs for pediatric rheumatology fellows were held in 2009 and 2011 during national rheumatology meetings using scenarios and assessment forms originally developed by a fellowship program director. The seven scenarios tested medical knowledge, physical exam and interpersonal skills. Pediatric rheumatologist evaluators assessed fellows' performance using checklists and gave immediate feedback. Program directors were sent summaries of their fellows' performances. Fellows evaluated the OSCE, providing organizational and scenario improvement suggestions. Programmatic changes to the 2011 OSCE were based on 2009 performance data and program evaluation feedback. RESULTS Twenty-two fellows participated in 2009 and 19 in 2011. Performance scores in similar scenarios did not change considerably over the two iterations. In 2009, 85.7% of participants reported desire to change clinical behavior. Assessors' 2009 program evaluation data prompted changes in rating scales and removal of invalid or unreliable assessments. Negative evaluation data about individual stations decreased from 60% in 2009 to 15.4% in 2011. Fellows' ratings of the experience's overall value were similar in 2009 and 2011. The average experience ratings were lower among fellows who proposed scenario-specific improvements and higher among those who recommended organizational improvements. CONCLUSIONS The 2011 examination exhibited programmatic improvement via reduction in fellows' scenario-specific negative feedback. Fellows' overall satisfaction did not change. Further work in scenario selection, assessment validation and inter-rater reliability will improve future pediatric rheumatology OSCEs.
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Affiliation(s)
- Megan L. Curran
- University of Colorado School of Medicine, Children’s Hospital of Colorado, 13123 E 16th Avenue, Box 311, Aurora, CO 80045 USA
| | - Emma E. Martin
- 0000 0004 0388 2248grid.413808.6Ann & Robert H. Lurie Children’s Hospital of Chicago, 225 E. Chicago Avenue, Box 50, Chicago, IL 60611 USA
| | - Erin C. Thomas
- 0000 0004 0388 2248grid.413808.6Ann & Robert H. Lurie Children’s Hospital of Chicago, 225 E. Chicago Avenue, Box 50, Chicago, IL 60611 USA
| | - Rashmi Singh
- 0000 0004 0388 2248grid.413808.6Ann & Robert H. Lurie Children’s Hospital of Chicago, 225 E. Chicago Avenue, Box 50, Chicago, IL 60611 USA
| | - Saima Armana
- 0000 0004 0388 2248grid.413808.6Ann & Robert H. Lurie Children’s Hospital of Chicago, 225 E. Chicago Avenue, Box 50, Chicago, IL 60611 USA
| | - Asnia Kauser
- 0000 0004 0388 2248grid.413808.6Ann & Robert H. Lurie Children’s Hospital of Chicago, 225 E. Chicago Avenue, Box 50, Chicago, IL 60611 USA
| | - Eesha A. Zaheer
- 0000 0004 0388 2248grid.413808.6Ann & Robert H. Lurie Children’s Hospital of Chicago, 225 E. Chicago Avenue, Box 50, Chicago, IL 60611 USA
| | - David D. Sherry
- Division of Rheumatology, Perelman School of Medicine, University of Pennsylvania, Children’s Hospital of Philadelphia, 3401 Civic Center Blvd., Philadelphia, PA 19104 USA
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Pickett RA, Owens K, Landis P, Sara R, Lim HW. Cryoballoon-to-Pulmonary Vein Occlusion Assessment via Capnography Technique: Where Does Occlusion Testing by End-Tidal CO2 Measurement "Fit" as a Predictor of Long-Term Efficacy? J Atr Fibrillation 2018; 11:2055. [PMID: 30455840 DOI: 10.4022/jafib.2055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 03/19/2018] [Accepted: 04/26/2018] [Indexed: 11/10/2022]
Abstract
Introduction Parameters used to gauge the effectiveness of a cryoballoon lesion have been described that monitor the ablation at the time of balloon-to-pulmonary vein (PV) occlusion, during the cryoablation freeze, and at the thaw phase of the cryoablation. This study examines the balloon-to-PV occlusion step and monitors the completeness of occlusion using capnography to measure end-tidal CO2 (ETCO2). Specifically, the main objective was to determine if ETCO2 measurements can be used to quantify the amount of balloon-to-PV occlusion and to determine if acute ETCO2 parameters could predict long-term freedom from atrial fibrillation (AF). Methods and Results In a prospective study, 30 subjects were cryoballoon ablated for drug refractory symptomatic paroxysmal AF by pulmonary vein isolation method. During the balloon-to-PV occlusion and throughout the cryoablation, ETCO2 measurements were recorded. The subjects were followed for a 12-month period to monitor their freedom from AF. Five subjects had a recurrence of AF outside of a 90-day blanking period but before the 12-month endpoint. Between the 25 subjects that maintained normal sinus rhythm (NSR) and the 5 subjects that had recurrent AF (rAF), there were no statistical differences in procedural parameters, including: the number of cryoablations per PV, duration of each cryoablation, balloon nadir temperature, or balloon thaw time. Additionally, there were no statistical differences in baseline ETCO2 and in nadir ETCO2 between the two cohorts; however, when examining Δ ETCO2, the subjects in the NSR cohort had a significantly larger change compared to the rAF cohort (P<0.001). The largest change in ETCO2 during balloon-to-PV occlusion was observed during the cryoballoon ablation of the superior PVs; however, Δ ETCO2 did not solely predict long-term freedom from AF for the individual subject. Conclusion Δ ETCO2 did tend to be larger in the NSR cohort compared to the rAF cohort; however, ETCO2 monitoring was more responsive in the superior PVs and less useful in the inferior PVs. Moreover, ETCO2 monitoring could not be used as a sole indicator of long-term efficacy. Suggesting that monitoring balloon-to-PV occlusion is a necessary first in cryoballoon ablation, but other parameters must be incorporated and observed as surrogates of a circumferential and transmural lesion formation with long-term durability.
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Affiliation(s)
| | | | - Penny Landis
- St. Thomas Research Institute, Nashville, Tennessee
| | | | - Hae W Lim
- St. Thomas Research Institute, Nashville, Tennessee
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