Karl F. Welke

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Does the pattern of bicuspid aortic valve leaflet fusion determine the success of the Ross procedure?

Mark Ruzmetov, Randall S. Fortuna, Jitendra J. Shah, Karl F. Welke, more

Journal of Cardiac Surgery > 35 > 1 > 28 - 34

Background In addition to being associated with aortopathy, a bicuspid aortic valve (BAV) has been posed to be a risk factor for the dilation of the pulmonary autograft in the aortic position. The aim of this study is to assess the association between the subtype of native aortic valve leaflet fusion (right and noncoronary leaflets [R/N] vs right and left leaflets [R/L]) and autograft dilation and...

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It's All in the Interpretation

Karl F. Welke

Seminars in Thoracic and Cardiovascular Surgery > 2017 > 29 > 2 > 221-222

article

Invited Commentary

Karl F. Welke

The Annals of Thoracic Surgery > 2016 > 101 > 4 > 1529

article

How much will the data allow us to know?

Karl F. Welke

The Journal of Thoracic and Cardiovascular Surgery > 2016 > 151 > 2 > 466-467

article

Penetration, Completeness, and Representativeness of The Society of Thoracic Surgeons Adult Cardiac Surgery Database

Jeffrey P. Jacobs, David M. Shahian, Xia He, Sean M. O’Brien, more

The Annals of Thoracic Surgery > 2016 > 101 > 1 > 33-41

The Society of Thoracic Surgeons (STS) Adult Cardiac Surgery Database (ACSD) has been successfully linked to the Centers for Medicare and Medicaid (CMS) Medicare database, thereby facilitating comparative effectiveness research and providing information about long-term follow-up and cost. The present study uses this link to determine contemporary completeness, penetration, and representativeness of...

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ACC/AHA/STS Statement on the Future of Registries and the Performance Measurement Enterprise

Deepak L. Bhatt, Joseph P. Drozda, David M. Shahian, Paul S. Chan, more

Journal of the American College of Cardiology > 2015 > 66 > 20 > 2230-2245

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A Report of the American College of Cardiology/American Heart Association Task Force on Performance Measures and The Society of Thoracic Surgeons

Deepak L. Bhatt, Joseph P. Drozda, David M. Shahian, Paul S. Chan, more

The Annals of Thoracic Surgery > 2015 > 100 > 5 > 1926-1941

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The Society of Thoracic Surgeons Composite Measure of Individual Surgeon Performance for Adult Cardiac Surgery: A Report of The Society of Thoracic Surgeons Quality Measurement Task Force

David M. Shahian, Xia He, Jeffrey P. Jacobs, Paul A. Kurlansky, more

The Annals of Thoracic Surgery > 2015 > 100 > 4 > 1315-1325

Previous composite performance measures of The Society of Thoracic Surgeons (STS) were estimated at the STS participant level, typically a hospital or group practice. The STS Quality Measurement Task Force has now developed a multiprocedural, multidimensional composite measure suitable for estimating the performance of individual surgeons.The development sample from the STS National Database included...

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Invited Commentary

Karl F. Welke

The Annals of Thoracic Surgery > 2015 > 100 > 4 > 1421-1422

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The Society of Thoracic Surgeons Congenital Heart Surgery Database Mortality Risk Model: Part 1—Statistical Methodology

Sean M. O’Brien, Jeffrey P. Jacobs, Sara K. Pasquali, J. William Gaynor, more

The Annals of Thoracic Surgery > 2015 > 100 > 3 > 1054-1062

This study’s objective was to develop a risk model incorporating procedure type and patient factors to be used for case-mix adjustment in the analysis of hospital-specific operative mortality rates after congenital cardiac operations.Included were patients of all ages undergoing cardiac operations, with or without cardiopulmonary bypass, at centers participating in The Society of Thoracic Surgeons...

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The Society of Thoracic Surgeons Congenital Heart Surgery Database Mortality Risk Model: Part 2—Clinical Application

Jeffrey P. Jacobs, Sean M. O’Brien, Sara K. Pasquali, J. William Gaynor, more

The Annals of Thoracic Surgery > 2015 > 100 > 3 > 1063-1070

The empirically derived 2014 Society of Thoracic Surgeons Congenital Heart Surgery Database Mortality Risk Model incorporates adjustment for procedure type and patient-specific factors. The purpose of this report is to describe this model and its application in the assessment of variation in outcomes across centers.All index cardiac operations in The Society of Thoracic Surgeons Congenital Heart Surgery...

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The Association Between Aortic Valve Leaflet Morphology and Patterns of Aortic Dilation in Patients With Bicuspid Aortic Valves

Mark Ruzmetov, Jitendra J. Shah, Randall S. Fortuna, Karl F. Welke

The Annals of Thoracic Surgery > 2015 > 99 > 6 > 2101-2108

Dilation of the aorta is a frequent complication in patients with bicuspid aortic valves. The aim of this study was to determine the relationship between the subtype of leaflet fusion, right and noncoronary leaflet (R/N) fusion versus right and left leaflet (R/L) fusion, and the patterns of aortic dilation and valve dysfunction in young patients with bicuspid aortic valves.We performed a retrospective...

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The Importance of Patient-Specific Preoperative Factors: An Analysis of The Society of Thoracic Surgeons Congenital Heart Surgery Database

Jeffrey Phillip Jacobs, Sean M. O’Brien, Sara K. Pasquali, Sunghee Kim, more

The Annals of Thoracic Surgery > 2014 > 98 > 5 > 1653-1659

The most common forms of risk adjustment for pediatric and congenital heart surgery used today are based mainly on the estimated risk of mortality of the primary procedure of the operation. The goals of this analysis were to assess the association of patient-specific preoperative factors with mortality and to determine which of these preoperative factors to include in future pediatric and congenital...

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Outcomes of Tricuspid Valve Repair in Children with Hypoplastic Left Heart Syndrome

Mark Ruzmetov, Karl F. Welke, Dale M. Geiss, Randall S. Fortuna

Journal of Cardiac Surgery > 29 > 5 > 698 - 704

ObjectivesTricuspid valve regurgitation (TR) is a common finding in children with hypoplastic left heart syndrome (HLHS) undergoing staged surgical reconstruction and can result from either abnormal valve morphology or incomplete leaflet coaptation due to annular dilatation. The purpose of this study was to determine the incidence of severe TR and to evaluate the effect of surgically treated tricuspid...

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Failed Autograft After the Ross Procedure in Children: Management and Outcome

Mark Ruzmetov, Karl F. Welke, Dale M. Geiss, Klay Buckley, more

The Annals of Thoracic Surgery > 2014 > 98 > 1 > 112-118

Autograft dilatation (AD) and aortic insufficiency (AI) after the Ross procedure are the most common causes of late autograft failure. The purpose of this study was to examine the results of valve-sparing root replacement (modified David) and composite root replacement.We performed a retrospective review of all children (n = 78) undergoing a Ross procedure at our Center from 1993 to 2011.Median follow-up...

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The STS AVR + CABG Composite Score: A Report of the STS Quality Measurement Task Force

David M. Shahian, Xia He, Jeffrey P. Jacobs, J. Scott Rankin, more

The Annals of Thoracic Surgery > 2014 > 97 > 5 > 1604-1609

The Society of Thoracic Surgeons (STS) is developing a portfolio of composite performance measures for the most commonly performed adult cardiac procedures. This manuscript describes the third composite measure in this series, aortic valve replacement (AVR) combined with coronary artery bypass grafting surgery (CABG).We identified all patients in the STS Adult Cardiac Surgery Database who underwent...

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Combined heart-kidney transplant improves post-transplant survival compared with isolated heart transplant in recipients with reduced glomerular filtration rate: Analysis of 593 combined heart-kidney transplants from the United Network Organ Sharing Database

Tara Karamlou, Karl F. Welke, D. Michael McMullan, Gordon A. Cohen, more

The Journal of Thoracic and Cardiovascular Surgery > 2014 > 147 > 1 > 456-461.e1

Criteria for simultaneous heart-kidney transplant (HKTx) recipients are unclear. We characterized the evolution of combined HKTx in the United States over time compared with isolated heart transplantation (HTx) and determined factors maximizing post-transplant survival. We focused on whether a threshold estimated glomerular filtration rate (eGFR) could be identified that justified combined transplantation...

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Rethinking the Ross Procedure in Adults

T. Brett Reece, Karl F. Welke, Sean O’Brien, Maria V. Grau-Sepulveda, more

The Annals of Thoracic Surgery > 2014 > 97 > 1 > 175-181

Although questionable durability has tempered enthusiasm for the Ross procedure in the last decade, the perioperative risks of the Ross procedure relative to conventional aortic valve replacement are not well described. The goal of this study is to describe both the perioperative outcomes and utilization trends of the Ross procedure in adults in The Society of Thoracic Surgeons Adult Cardiac Surgery...

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Variation in Ventilation Time After Coronary Artery Bypass Grafting: An Analysis From The Society of Thoracic Surgeons Adult Cardiac Surgery Database

Jeffrey P. Jacobs, Xia He, Sean M. O'Brien, Karl F. Welke, more

The Annals of Thoracic Surgery > 2013 > 96 > 3 > 757-762

Short postoperative ventilation times are accepted as a marker of quality. This analysis assesses center level variation in postoperative ventilation time in a subset of patients undergoing isolated coronary artery bypass grafting (CABG).In 2009 and 2010, 325,129 patients in the STS Adult Cardiac Surgery Database underwent isolated CABG. Patients were excluded if they were intubated before entering...

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Issues in Quality Measurement: Target Population, Risk Adjustment, and Ratings

David M. Shahian, Xia He, Jeffrey P. Jacobs, J. Scott Rankin, more

The Annals of Thoracic Surgery > 2013 > 96 > 2 > 718-726

This review investigates three fundamental issues in health care performance measurement: selection of a homogeneous target population, risk adjustment, and assignment of quality rating categories. Many but not all organizations involved in quality measurement have adopted similar approaches to these important methodological issues. To illustrate the practical implications of different profiling strategies,...

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Search results for: Karl F. Welke

Does the pattern of bicuspid aortic valve leaflet fusion determine the success of the Ross procedure?

It's All in the Interpretation

Invited Commentary

How much will the data allow us to know?

Penetration, Completeness, and Representativeness of The Society of Thoracic Surgeons Adult Cardiac Surgery Database

ACC/AHA/STS Statement on the Future of Registries and the Performance Measurement Enterprise

A Report of the American College of Cardiology/American Heart Association Task Force on Performance Measures and The Society of Thoracic Surgeons

The Society of Thoracic Surgeons Composite Measure of Individual Surgeon Performance for Adult Cardiac Surgery: A Report of The Society of Thoracic Surgeons Quality Measurement Task Force

Invited Commentary

The Society of Thoracic Surgeons Congenital Heart Surgery Database Mortality Risk Model: Part 1—Statistical Methodology

The Society of Thoracic Surgeons Congenital Heart Surgery Database Mortality Risk Model: Part 2—Clinical Application

The Association Between Aortic Valve Leaflet Morphology and Patterns of Aortic Dilation in Patients With Bicuspid Aortic Valves

The Importance of Patient-Specific Preoperative Factors: An Analysis of The Society of Thoracic Surgeons Congenital Heart Surgery Database

Outcomes of Tricuspid Valve Repair in Children with Hypoplastic Left Heart Syndrome

Failed Autograft After the Ross Procedure in Children: Management and Outcome

The STS AVR + CABG Composite Score: A Report of the STS Quality Measurement Task Force

Combined heart-kidney transplant improves post-transplant survival compared with isolated heart transplant in recipients with reduced glomerular filtration rate: Analysis of 593 combined heart-kidney transplants from the United Network Organ Sharing Database

Rethinking the Ross Procedure in Adults

Variation in Ventilation Time After Coronary Artery Bypass Grafting: An Analysis From The Society of Thoracic Surgeons Adult Cardiac Surgery Database

Issues in Quality Measurement: Target Population, Risk Adjustment, and Ratings

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