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Steinberg BA, Holubkov R, Deering T, Groh CA, Mittal S, Kennedy R, Pokharel P, Perez M, Savona S, Verma N, Watt K, Piccini JP, Bunch TJ. Expedited loading with intravenous sotalol is safe and feasible-primary results of the Prospective Evaluation Analysis and Kinetics of IV Sotalol (PEAKS) Registry. Heart Rhythm 2024:S1547-5271(24)00218-2. [PMID: 38417598 DOI: 10.1016/j.hrthm.2024.02.046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 02/20/2024] [Accepted: 02/22/2024] [Indexed: 03/01/2024]
Abstract
BACKGROUND Loading of oral sotalol for atrial fibrillation requires 3 days, frequently in the hospital, to achieve steady state. The Food and Drug Administration approved loading with intravenous (IV) sotalol through model-informed development, without patient data. OBJECTIVE We present results of the first multicenter evaluation of this recent labeling for IV sotalol. METHODS The Prospective Evaluation Analysis and Kinetics of IV Sotalol (PEAKS) Registry was a multicenter observational registry of patients undergoing elective IV sotalol load for atrial arrhythmias. Outcomes, measured from hospital admission until first outpatient follow-up, included adverse arrhythmia events, efficacy, and length of stay. RESULTS Of 167 consecutively enrolled patients, 23% were female; the median age was 68 (interquartile range, 61-74) years, and the median CHA2DS2-VASc score was 3 (interquartile range, 2-4). Overall, 99% were admitted for sotalol initiation (1% for dose escalation), with a target oral sotalol dose of either 80 mg twice daily (85 [51%]) or 120 mg twice daily (78 [47%]); 62 patients (37%) had an estimated creatinine clearance ≤90 mL/min. On presentation, 40% of patients were in sinus rhythm, whereas 26% underwent cardioversion before sotalol infusion. In 2 patients, sotalol infusion was stopped for bradycardia or hypotension. In 6 patients, sotalol was discontinued before discharge because of QTc prolongation (3), bradycardia (1), or recurrent atrial arrhythmia (2). The mean length of stay was 1.1 days, and 95% (n = 159) were discharged within 1 night. CONCLUSION IV sotalol loading is safe and feasible for atrial arrhythmias, with low rates of adverse events, and yields shorter hospitalizations. More data are needed on the minimal duration required for monitoring in the hospital.
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Affiliation(s)
- Benjamin A Steinberg
- Division of Cardiovascular Medicine, University of Utah Health, Salt Lake City, Utah.
| | - Richard Holubkov
- Data Coordinating Center, Department of Pediatrics, Spencer Eccles Fox School of Medicine, University of Utah, Salt Lake City, Utah
| | | | - Christopher A Groh
- Division of Cardiovascular Medicine, University of Utah Health, Salt Lake City, Utah
| | | | | | | | - Marco Perez
- Department of Medicine, Stanford University, Stanford, California
| | - Salvatore Savona
- Department of Medicine, The Ohio State University, Columbus, Ohio
| | - Nishant Verma
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Kevin Watt
- Division of Clinical Pharmacology, Department of Pediatrics, Spencer Eccles Fox School of Medicine, University of Utah, Salt Lake City, Utah
| | - Jonathan P Piccini
- Department of Medicine, Duke University Medical Center, Durham, North Carolina
| | - T Jared Bunch
- Division of Cardiovascular Medicine, University of Utah Health, Salt Lake City, Utah
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Zenger B, Li H, Bunch TJ, Crawford C, Fang JC, Groh CA, Hess R, Navaravong L, Ranjan R, Young J, Zhang Y, Steinberg BA. Major drivers of healthcare system costs and cost variability for routine atrial fibrillation ablation. Heart Rhythm O2 2023; 4:251-257. [PMID: 37124552 PMCID: PMC10134392 DOI: 10.1016/j.hroo.2022.12.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Background Catheter ablation is an effective treatment for atrial fibrillation (AF) but incurs significant financial costs to payers. Reducing variability may improve cost effectiveness. Objectives We aimed to measure (1) the components of direct and indirect costs for routine AF ablation procedures, (2) the variability of those costs, and (3) the main factors driving ablation cost variability. Methods Using data from the University of Utah Health Value Driven Outcomes system, we were able to measure direct, inflation-adjusted costs of uncomplicated, routine AF ablation to the healthcare system. Direct costs were considered costs incurred by pharmacy, disposable supplies, patient labs, implants, and other services categories (primarily anesthesia support) and indirect costs were considered within imaging, facility, and electrophysiology lab management categories. Results A total of 910 patients with 1060 outpatient ablation encounters were included from January 1, 2013, to December 31, 2020. Disposable supplies accounted for the largest component of cost with 44.8 ± 9.7%, followed by other services (primarily anesthesia support) with 30.4 ± 7.7% and facility costs with 16.1 ± 5.6%; pharmacy, imaging, and implant costs each contributed <5%. Direct costs were larger than indirect costs (82.4 ± 5.6% vs 17.6 ± 5.6%). Multivariable regression showed that procedure operator was the primary factor associated with AF ablation overall cost (up to 12% differences depending on operator). Conclusions Direct costs and other services (primarily anesthesia) drive the majority costs associated with AF ablations. There is significant variability in costs for these routine, uncomplicated AF ablation procedures. The procedure operator, and not patient characteristic, is the main driver for cost variability.
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Affiliation(s)
- Brian Zenger
- University of Utah School of Medicine, Salt Lake City, Utah
| | - Haojia Li
- Department of Internal Medicine, Division of Epidemiology, University of Utah, Salt Lake City, Utah
| | - T. Jared Bunch
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Utah, Salt Lake City, Utah
| | - Candice Crawford
- Decision Support, University of Utah Health, Salt Lake City, Utah
| | - James C. Fang
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Utah, Salt Lake City, Utah
| | - Christopher A. Groh
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Utah, Salt Lake City, Utah
| | - Rachel Hess
- Division of General Internal Medicine, Department of Internal Medicine, University of Utah, Salt Lake City, Utah
- Department of Population Health Sciences, University of Utah, Salt Lake City, Utah
| | - Leenhapong Navaravong
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Utah, Salt Lake City, Utah
| | - Ravi Ranjan
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Utah, Salt Lake City, Utah
| | - Jeff Young
- Decision Support, University of Utah Health, Salt Lake City, Utah
| | - Yue Zhang
- Department of Internal Medicine, Division of Epidemiology, University of Utah, Salt Lake City, Utah
| | - Benjamin A. Steinberg
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Utah, Salt Lake City, Utah
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Sessions AJ, May HT, Crandall BG, Day JD, Cutler MJ, Groh CA, Navaravong L, Ranjan R, Steinberg BA, Jared Bunch T. Response to "Delay in AF ablation costs lives". J Cardiovasc Electrophysiol 2023; 34:1094-1095. [PMID: 36864718 DOI: 10.1111/jce.15878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Accepted: 02/20/2023] [Indexed: 03/04/2023]
Affiliation(s)
| | - Heidi T May
- Department of Cardiology, Intermountain Medical Center, Intermountain Heart Institute, Salt Lake City, Utah, USA
| | - Brian G Crandall
- Department of Cardiology, Intermountain Medical Center, Intermountain Heart Institute, Salt Lake City, Utah, USA
| | - John D Day
- Department of Cardiology, St. Marks Hospital, Utah, Salt Lake City, USA
| | - Michael J Cutler
- Department of Cardiology, Intermountain Medical Center, Intermountain Heart Institute, Salt Lake City, Utah, USA
| | - Christopher A Groh
- Department of Internal Medicine, Division of Cardiology, University Hospital, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Leenapong Navaravong
- Department of Internal Medicine, Division of Cardiology, University Hospital, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Ravi Ranjan
- Department of Internal Medicine, Division of Cardiology, University Hospital, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Benjamin A Steinberg
- Department of Internal Medicine, Division of Cardiology, University Hospital, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - T Jared Bunch
- Department of Internal Medicine, Division of Cardiology, University Hospital, University of Utah School of Medicine, Salt Lake City, Utah, USA
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Sessions AJ, May HT, Crandall BG, Day JD, Cutler MJ, Groh CA, Navaravong L, Ranjan R, Steinberg BA, J Bunch T. Increasing time between first diagnosis of atrial fibrillation and catheter ablation adversely affects long-term outcomes in patients with and without structural heart disease. J Cardiovasc Electrophysiol 2023; 34:507-515. [PMID: 36640433 DOI: 10.1111/jce.15810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 12/05/2022] [Accepted: 12/20/2022] [Indexed: 01/15/2023]
Abstract
INTRODUCTION Atrial Fibrillation (AF) is a common arrhythmia often comorbid with systolic or diastolic heart failure (HF). Catheter ablation is a more effective treatment for AF with concurrent left ventricular dysfunction, however, the optimal timing of use in these patients is unknown. METHODS All patients that received a catheter ablation for AF(n = 9979) with 1 year of follow-up within the Intermountain Healthcare system were included. Patients with were identified by the presence of structural disease by ejection fraction (EF): EF ≤ 35% (n = 1024) and EF > 35% (n = 8955). Recursive partitioning categories were used to separate patients into clinically meaningful strata based upon time from initial AF diagnosis until ablation: 30-180(n = 2689), 2:181-545(n = 1747), 3:546-1825(n = 2941), and 4:>1825(n = 2602) days. RESULTS The mean days from AF diagnosis to first ablation was 3.5 ± 3.8 years (EF > 35%: 3.5 ± 3.8 years, EF ≤ 35%: 3.4 ± 3.8 years, p = .66). In the EF > 35% group, delays in treatment (181-545 vs. 30-180, 546-1825 vs. 30-180, >1825 vs. 30-180 days) increased the risk of death with a hazard ratio (HR) of 2.02(p < .0001), 2.62(p < .0001), and 4.39(p < .0001) respectively with significant risks for HF hospitalization (HR:1.44-3.69), stroke (HR:1.11-2.14), and AF recurrence (HR:1.42-1.81). In patients with an EF ≤ 35%, treatment delays also significantly increased risk of death (HR 2.07-3.77) with similar trends in HF hospitalization (HR:1.63-1.09) and AF recurrence (HR:0.79-1.24). CONCLUSION Delays in catheter ablation for AF resulted in increased all-cause mortality in all patients with differential impact observed on HF hospitalization, stroke, and AF recurrence risks by baseline EF. These data favor earlier use of ablation for AF in patients with and without structural heart disease.
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Affiliation(s)
| | - Heidi T May
- Department of Cardiology, Intermountain Medical Center, Intermountain Heart Institute, Salt Lake City, Utah, USA
| | - Brian G Crandall
- Department of Cardiology, Intermountain Medical Center, Intermountain Heart Institute, Salt Lake City, Utah, USA
| | - John D Day
- St. Marks Hospital, Salt Lake City, Utah, USA
| | - Michael J Cutler
- Department of Cardiology, Intermountain Medical Center, Intermountain Heart Institute, Salt Lake City, Utah, USA
| | - Christopher A Groh
- Department of Internal Medicine, Division of Cardiology, University Hospital, Salt Lake City, Utah, USA
| | - Leenapong Navaravong
- Department of Internal Medicine, Division of Cardiology, University Hospital, Salt Lake City, Utah, USA
| | - Ravi Ranjan
- Department of Internal Medicine, Division of Cardiology, University Hospital, Salt Lake City, Utah, USA
| | - Benjamin A Steinberg
- Department of Internal Medicine, Division of Cardiology, University Hospital, Salt Lake City, Utah, USA
| | - Thomas J Bunch
- Department of Internal Medicine, Division of Cardiology, University Hospital, Salt Lake City, Utah, USA
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Varela DL, Ayinapudi K, Ahmed B, Groh CA, Freedman RA. Increasing pacemaker lead impedance and pacing threshold after initiation of chemotherapy with doxorubicin and cyclophosphamide. HeartRhythm Case Rep 2022; 8:845-848. [PMID: 36620369 PMCID: PMC9811113 DOI: 10.1016/j.hrcr.2022.09.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Affiliation(s)
- Daniel L. Varela
- Address reprint requests and correspondence: Dr Daniel Varela, Division of Cardiology, University of Utah School of Medicine, 4th Floor, Room 4A100, 30 N 1900 E, Salt Lake City, UT 84132.
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Ishidoya Y, Kwan E, Dosdall DJ, Navaravong L, Groh CA, Steinberg BA, Bunch TJ, Ranjan R. CA-528-02 SHORT-TERM NATURAL COURSE OF ESOPHAGEAL THERMAL INJURY AFTER RADIOFREQUENCY CATHETER ABLATION FOR ATRIAL FIBRILLATION. Heart Rhythm 2022. [DOI: 10.1016/j.hrthm.2022.03.100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Groh CA, Bunch TJ. How to Rebuild a Damaged Heart: The Role of Left Bundle Branch Pacing to Reduce Functional Mitral Regurgitation. Heart Rhythm 2022; 19:746-747. [PMID: 35123045 DOI: 10.1016/j.hrthm.2022.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 02/01/2022] [Indexed: 11/04/2022]
Affiliation(s)
- Christopher A Groh
- University of Utah School of Medicine, Department of Internal Medicine, Division of Cardiovascular Medicine, Salt Lake City, Utah
| | - T Jared Bunch
- University of Utah School of Medicine, Department of Internal Medicine, Division of Cardiovascular Medicine, Salt Lake City, Utah.
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Aung S, Nah G, Vittinghoff E, Groh CA, Fang CD, Marcus GM. Population-Level Analyses of Alcohol Consumption as a Predictor of Acute Atrial Fibrillation Episodes. Nat Cardiovasc Res 2022; 1:23-27. [PMID: 38037649 PMCID: PMC10688513 DOI: 10.1038/s44161-021-00003-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 11/15/2021] [Indexed: 12/02/2023]
Affiliation(s)
- Sidney Aung
- Division of Cardiology, University of California, San Francisco
| | - Gregory Nah
- Division of Cardiology, University of California, San Francisco
| | - Eric Vittinghoff
- Department of Epidemiology and Biostatistics, University of California, San Francisco
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Rosenthal DG, Fang CD, Groh CA, Nah G, Vittinghoff E, Dewland TA, Marcus GM. Association Between Sarcoidosis and Atrial Fibrillation Among Californians Using Medical Care. JACC Clin Electrophysiol 2021; 7:1620-1622. [PMID: 34844907 DOI: 10.1016/j.jacep.2021.09.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 09/16/2021] [Accepted: 09/20/2021] [Indexed: 10/20/2022]
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Groh CA, Bunch TJ. Early recurrence of atrial tachyarrhythmia post-atrial fibrillation ablation: Filling in the blank. Heart Rhythm 2021; 18:1471-1472. [PMID: 34214646 DOI: 10.1016/j.hrthm.2021.06.1196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 06/25/2021] [Indexed: 11/16/2022]
Affiliation(s)
- Christopher A Groh
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, Utah
| | - T Jared Bunch
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, Utah.
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Rosenthal DG, Fang CD, Groh CA, Nah G, Vittinghoff E, Dewland TA, Vedantham V, Marcus GM. Heart Failure, Atrioventricular Block, and Ventricular Tachycardia in Sarcoidosis. J Am Heart Assoc 2021; 10:e017692. [PMID: 33599141 PMCID: PMC8174291 DOI: 10.1161/jaha.120.017692] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background Sarcoidosis is a granulomatous disease usually affecting the lungs, although cardiac morbidity may be common. The risk of these outcomes and the characteristics that predict them remain largely unknown. This study investigates the epidemiology of heart failure, atrioventricular block, and ventricular tachycardia among patients with and without sarcoidosis. Methods and Results We identified California residents aged ≥21 years using the Office of Statewide Health Planning and Development ambulatory surgery, emergency, or inpatient databases from 2005 to 2015. The risk of sarcoidosis on incident heart failure, atrioventricular block, and ventricular tachycardia were each determined. Linkage to the Social Security Death Index was used to ascertain overall mortality. Among 22 527 964 California residents, 19 762 patients with sarcoidosis (0.09%) were identified. Sarcoidosis was the strongest predictor of heart failure (hazard ratio [HR], 11.2; 95% CI, 10.7-11.7), atrioventricular block (HR, 117.7; 95% CI, 103.3-134.0), and ventricular tachycardia (HR, 26.1; 95% CI, 24.2-28.1) identified among all risk factors. The presence of any cardiac involvement best predicted each outcome. Approximately 22% (95% CI, 18%-26%) of the relationship between sarcoidosis and increased mortality was explained by the presence of at least 1 of these cardiovascular outcomes. Conclusions The magnitude of risk associated with sarcoidosis as a predictor of heart failure, atrioventricular block, and ventricular tachycardia, exceeds all established risk factors. Surveillance for and anticipation of these outcomes among patients with sarcoidosis is indicated, and consideration of a sarcoidosis diagnosis may be prudent among patients with heart failure, atrioventricular block, or ventricular tachycardia.
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Affiliation(s)
- David G Rosenthal
- Division of Cardiology, Electrophysiology Section University of California, San Francisco CA
| | - Christina D Fang
- Division of Cardiology, Electrophysiology Section University of California, San Francisco CA
| | - Christopher A Groh
- Division of Cardiology, Electrophysiology Section University of California, San Francisco CA
| | - Gregory Nah
- Division of Cardiology, Electrophysiology Section University of California, San Francisco CA
| | - Eric Vittinghoff
- Department of Epidemiology and Biostatistics University of California, San Francisco CA
| | - Thomas A Dewland
- Division of Cardiology, Electrophysiology Section University of California, San Francisco CA
| | - Vasanth Vedantham
- Division of Cardiology, Electrophysiology Section University of California, San Francisco CA
| | - Gregory M Marcus
- Division of Cardiology, Electrophysiology Section University of California, San Francisco CA
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Groh CA, Vittinghoff E, Benjamin EJ, Dupuis J, Marcus GM. Childhood Tobacco Smoke Exposure and Risk of Atrial Fibrillation in Adulthood. J Am Coll Cardiol 2019; 74:1658-1664. [PMID: 31558248 PMCID: PMC6768078 DOI: 10.1016/j.jacc.2019.07.060] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 07/23/2019] [Indexed: 12/21/2022]
Abstract
BACKGROUND Cigarette smoking is known to increase the risk of atrial fibrillation (AF), and a recent cross-sectional analysis suggested that parental smoking may be an AF risk factor. OBJECTIVES The purpose of this study was to assess if parental smoking predicts offspring AF in the Framingham Heart Study. METHODS This study analyzed Framingham Offspring cohort participants with parents in the Original cohort with known smoking status during the offspring's childhood. Framingham participants were evaluated every 2 to 8 years and were under routine surveillance for incident AF. The authors assessed AF incidence among Offspring participants exposed to parental smoking through age 18 years and performed a mediation analysis to determine the extent to which offspring smoking might explain observed associations. RESULTS Of 2,816 Offspring cohort participants with at least 1 parent in the Original cohort, 82% were exposed to parental smoking. For every pack/day increase in parental smoking, there was an 18% increase in offspring AF incidence (adjusted hazard ratio [HR]: 1.18; 95% confidence interval [CI]: 1.00 to 1.39; p = 0.04). Additionally, parental smoking was a risk factor for offspring smoking (adjusted odds ratio [OR]: 1.34; 95% CI: 1.17 to 1.54; p < 0.001). Offspring smoking mediated 17% (95% CI: 1.5% to 103.3%) of the relationship between parental smoking and offspring AF. CONCLUSIONS Childhood secondhand smoke exposure predicted increased risk for adulthood AF after adjustment for AF risk factors. Some of this relationship may be mediated by a greater propensity among offspring of smoking parents to smoke themselves. These findings highlight potential new pathways for AF risk that begin during childhood, offering new evidence to motivate smoking avoidance and cessation.
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Affiliation(s)
- Christopher A Groh
- Electrophysiology Section, Division of Cardiology, University of California, San Francisco, California
| | - Eric Vittinghoff
- Department of Epidemiology and Biostatistics, University of California, San Francisco, California
| | - Emelia J Benjamin
- Department of Medicine, Boston University School of Medicine and Department of Epidemiology, Boston University School of Public Health, Boston, Massachusetts
| | - Josée Dupuis
- Department of Biostatistics, Boston University School of Public Health, Boston, Massachusetts
| | - Gregory M Marcus
- Electrophysiology Section, Division of Cardiology, University of California, San Francisco, California.
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Groh CA, Faulkner M, Getabecha S, Taffe V, Nah G, Sigona K, McCall D, Hills MT, Sciarappa K, Pletcher MJ, Olgin JE, Marcus GM. Patient-reported triggers of paroxysmal atrial fibrillation. Heart Rhythm 2019; 16:996-1002. [DOI: 10.1016/j.hrthm.2019.01.027] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Indexed: 11/29/2022]
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Groh CA, Goldschlager N. Blinded by the height: A case of telemetry T wave overcounting. J Electrocardiol 2019; 54:76-78. [DOI: 10.1016/j.jelectrocard.2019.03.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 02/21/2019] [Accepted: 03/22/2019] [Indexed: 11/25/2022]
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Groh CA, Sharma S, Pelchovitz DJ, Bhave PD, Rhyner J, Verma N, Arora R, Chicos AB, Kim SS, Lin AC, Passman RS, Knight BP. Use of an electrocardiographic screening tool to determine candidacy for a subcutaneous implantable cardioverter-defibrillator. Heart Rhythm 2014; 11:1361-6. [PMID: 24755323 DOI: 10.1016/j.hrthm.2014.04.025] [Citation(s) in RCA: 87] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Indexed: 01/20/2023]
Abstract
BACKGROUND An electrocardiographic (ECG) screening test has been developed to identify patients being considered for a totally subcutaneous implantable cardioverter-defibrillator (S-ICD) at risk for T-wave oversensing. OBJECTIVE The purpose of this study was to determine the proportion of potential S-ICD recipients who fail the ECG screening test and to identify predictors of failure. METHODS Patients who already have an ICD but are not receiving antibradycardia pacing are representative of patients who might be considered for an S-ICD. One hundred such outpatients were enrolled in the study. Surface rhythm strips were recorded along the sensing vectors of the S-ICD system and the screening template applied. Clinical and standard ECG characteristics of patients who failed the test were compared to those who passed. RESULTS Patients had the following characteristics: 72% male, age 57 ± 16 years, body mass index 29 ± 6 kg/m(2), left ventricular ejection fraction 43% ± 17%, QRS duration 109 ± 23 ms, QTc interval 447 ± 39 ms, 44% had coronary disease, and 55% had heart failure. Among the 100 patients, 8% failed the screening test. There were no differences in patient clinical characteristics and most standard ECG measurements. However, patients with T-wave inversions in standard ECG leads I, II, and aVF had a 45% chance of failing. CONCLUSION Eight percent of potential S-ICD patients were not eligible for the S-ICD after failing the screening test designed to identify patients susceptible to T-wave oversensing. Patients with T-wave inversions in leads I, II, and aVF on a standard ECG were 23 times more likely to fail. More work is needed in S-ICD sensing algorithms to increase patient eligibility for the S-ICD.
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Affiliation(s)
- Christopher A Groh
- Division of Cardiology, Department of Medicine, Northwestern University, Chicago, Illinois
| | - Shishir Sharma
- Division of Cardiology, Department of Medicine, Northwestern University, Chicago, Illinois
| | - Daniel J Pelchovitz
- Division of Cardiology, Department of Medicine, Northwestern University, Chicago, Illinois
| | - Prashant D Bhave
- Division of Cardiology, Department of Medicine, Northwestern University, Chicago, Illinois
| | - John Rhyner
- Division of Cardiology, Department of Medicine, Northwestern University, Chicago, Illinois
| | - Nishant Verma
- Division of Cardiology, Department of Medicine, Northwestern University, Chicago, Illinois
| | - Rishi Arora
- Division of Cardiology, Department of Medicine, Northwestern University, Chicago, Illinois
| | - Alexandru B Chicos
- Division of Cardiology, Department of Medicine, Northwestern University, Chicago, Illinois
| | - Susan S Kim
- Division of Cardiology, Department of Medicine, Northwestern University, Chicago, Illinois
| | - Albert C Lin
- Division of Cardiology, Department of Medicine, Northwestern University, Chicago, Illinois
| | - Rod S Passman
- Division of Cardiology, Department of Medicine, Northwestern University, Chicago, Illinois
| | - Bradley P Knight
- Division of Cardiology, Department of Medicine, Northwestern University, Chicago, Illinois.
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