Temporal Trends in Internal vs. External Referrals for TAVR in a Large Academic Center: Patients Characteristics and Outcomes

Background. Since transcatheter aortic valve replacement (TAVR) first became approved for inoperable patients followed by high, intermediate-, and low-risk patients, referrals to TAVR centers have rapidly increased. The purpose of this study was to investigate referral patterns to a large academic T...

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Main Authors: Aurelie Merlo, Audrey Khoury, Mohsin Shah, Tabitha Linville, John Ikonomidis, Matthew Cavender, John Vavalle, Thomas Caranasos
Format: Article
Language:English
Published: Hindawi-Wiley 2022-01-01
Series:Journal of Interventional Cardiology
Online Access:http://dx.doi.org/10.1155/2022/6074368
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author Aurelie Merlo
Audrey Khoury
Mohsin Shah
Tabitha Linville
John Ikonomidis
Matthew Cavender
John Vavalle
Thomas Caranasos
author_facet Aurelie Merlo
Audrey Khoury
Mohsin Shah
Tabitha Linville
John Ikonomidis
Matthew Cavender
John Vavalle
Thomas Caranasos
author_sort Aurelie Merlo
collection DOAJ
description Background. Since transcatheter aortic valve replacement (TAVR) first became approved for inoperable patients followed by high, intermediate-, and low-risk patients, referrals to TAVR centers have rapidly increased. The purpose of this study was to investigate referral patterns to a large academic TAVR center in the state of North Carolina and evaluate differences between externally and internally referred patients. Methods. Data for all patients who underwent TAVR at our institution between November 2014 and March 2020 were pulled from the Transcatheter Valve Therapy Registry. The electronic medical record was used to determine the referral source. The descriptive statistical analysis was performed using Excel (Microsoft, Redmond, Washington). Results. 491 patients underwent TAVR at our institution between November 2014 and March 2020. Half of the patients were referred by a cardiologist within the same health system (N = 250, 50.9%). Other referral sources included a cardiologist external to the health system (N = 210, N = 42.8%) and a surgeon or proceduralist (such as urologist, surgeon, or gastroenterologist) during the workup for another procedure (N = 26, 5.3%). Over time, there was a trend toward an increasing proportion of patients referred by a cardiologist external to our system, but this trend did not reach statistical significance (20.0% in 2014, 29.2% in 2015, 30.7% in 2016, 53.0% in 2017, 36% in 2018, 48.4% in 2019, and 56.8% in 2020, p=0.06 using the Mann–Kendall trend test). Externally referred patients were less likely to have private insurance and were more likely to have a reduced ejection fraction and had a higher mean gradient across the valve. Postprocedure, externally referred patients were more likely to have the procedure under moderate sedation and less likely to be discharged home. Conclusions. This study presents the referral pattern to a large TAVR center in North Carolina. Over time, there was an increase in external referrals suggesting that TAVR is increasingly adopted as an important component of the management of aortic valve stenosis. Internally and externally referred patients have differences in baseline demographic and clinical characteristics which may have an impact on clinical outcomes.
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spelling doaj.art-a8fe6a18f50441e296b03e9e9b153d252022-12-22T03:59:09ZengHindawi-WileyJournal of Interventional Cardiology1540-81832022-01-01202210.1155/2022/6074368Temporal Trends in Internal vs. External Referrals for TAVR in a Large Academic Center: Patients Characteristics and OutcomesAurelie Merlo0Audrey Khoury1Mohsin Shah2Tabitha Linville3John Ikonomidis4Matthew Cavender5John Vavalle6Thomas Caranasos7Department of SurgeryDepartment of SurgeryDepartment of SurgeryDepartment of MedicineDepartment of SurgeryDepartment of MedicineDepartment of MedicineDepartment of SurgeryBackground. Since transcatheter aortic valve replacement (TAVR) first became approved for inoperable patients followed by high, intermediate-, and low-risk patients, referrals to TAVR centers have rapidly increased. The purpose of this study was to investigate referral patterns to a large academic TAVR center in the state of North Carolina and evaluate differences between externally and internally referred patients. Methods. Data for all patients who underwent TAVR at our institution between November 2014 and March 2020 were pulled from the Transcatheter Valve Therapy Registry. The electronic medical record was used to determine the referral source. The descriptive statistical analysis was performed using Excel (Microsoft, Redmond, Washington). Results. 491 patients underwent TAVR at our institution between November 2014 and March 2020. Half of the patients were referred by a cardiologist within the same health system (N = 250, 50.9%). Other referral sources included a cardiologist external to the health system (N = 210, N = 42.8%) and a surgeon or proceduralist (such as urologist, surgeon, or gastroenterologist) during the workup for another procedure (N = 26, 5.3%). Over time, there was a trend toward an increasing proportion of patients referred by a cardiologist external to our system, but this trend did not reach statistical significance (20.0% in 2014, 29.2% in 2015, 30.7% in 2016, 53.0% in 2017, 36% in 2018, 48.4% in 2019, and 56.8% in 2020, p=0.06 using the Mann–Kendall trend test). Externally referred patients were less likely to have private insurance and were more likely to have a reduced ejection fraction and had a higher mean gradient across the valve. Postprocedure, externally referred patients were more likely to have the procedure under moderate sedation and less likely to be discharged home. Conclusions. This study presents the referral pattern to a large TAVR center in North Carolina. Over time, there was an increase in external referrals suggesting that TAVR is increasingly adopted as an important component of the management of aortic valve stenosis. Internally and externally referred patients have differences in baseline demographic and clinical characteristics which may have an impact on clinical outcomes.http://dx.doi.org/10.1155/2022/6074368
spellingShingle Aurelie Merlo
Audrey Khoury
Mohsin Shah
Tabitha Linville
John Ikonomidis
Matthew Cavender
John Vavalle
Thomas Caranasos
Temporal Trends in Internal vs. External Referrals for TAVR in a Large Academic Center: Patients Characteristics and Outcomes
Journal of Interventional Cardiology
title Temporal Trends in Internal vs. External Referrals for TAVR in a Large Academic Center: Patients Characteristics and Outcomes
title_full Temporal Trends in Internal vs. External Referrals for TAVR in a Large Academic Center: Patients Characteristics and Outcomes
title_fullStr Temporal Trends in Internal vs. External Referrals for TAVR in a Large Academic Center: Patients Characteristics and Outcomes
title_full_unstemmed Temporal Trends in Internal vs. External Referrals for TAVR in a Large Academic Center: Patients Characteristics and Outcomes
title_short Temporal Trends in Internal vs. External Referrals for TAVR in a Large Academic Center: Patients Characteristics and Outcomes
title_sort temporal trends in internal vs external referrals for tavr in a large academic center patients characteristics and outcomes
url http://dx.doi.org/10.1155/2022/6074368
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