Karl F Welke

Summary

Affiliation: MultiCare Health System
Country: USA

Publications

  1. doi request reprint Long-term results after Carpentier-Edwards pericardial aortic valve implantation, with attention to the impact of age
    Karl F Welke
    Medical Data Research Center, Providence Health and Services, Portland, Oregon 97225, USA
    Heart Surg Forum 14:E160-5. 2011
  2. doi request reprint Chance, bias, and confounding: threats to valid measurement of quality in the context of pediatric cardiac surgery
    Karl F Welke
    Mary Bridge Swedish Pediatric Cardiothoracic Surgery Program, Mary Bridge Children s Hospital and Health Center, 311 South L Street, Tacoma, WA 98415, USA
    Semin Thorac Cardiovasc Surg Pediatr Card Surg Annu 13:79-83. 2010
  3. doi request reprint The complex relationship between pediatric cardiac surgical case volumes and mortality rates in a national clinical database
    Karl F Welke
    Division of Cardiothoracic Surgery, Oregon Health and Science University, Portland, Ore 97239 3098, USA
    J Thorac Cardiovasc Surg 137:1133-40. 2009
  4. doi request reprint Comparison of pediatric cardiac surgical mortality rates from national administrative data to contemporary clinical standards
    Karl F Welke
    Division of Cardiothoracic Surgery, Oregon Health and Science University, Portland, Oregon 97239 3098, USA
    Ann Thorac Surg 87:216-22; discussion 222-3. 2009
  5. doi request reprint Mortality rate is not a valid indicator of quality differences between pediatric cardiac surgical programs
    Karl F Welke
    Division of Cardiothoracic Surgery, Department of Surgery, Oregon Health and Science University, Portland, Oregon 97239 3098, USA
    Ann Thorac Surg 89:139-44; discussion 145-6. 2010
  6. doi request reprint Common ground: measuring intrainstitutional mortality among pediatric surgical procedures
    Kirk A Caddell
    School of Medicine, Oregon Health and Science University, Portland, OR, USA
    Surgery 149:7-14. 2011
  7. ncbi request reprint Current assessment of mortality rates in congenital cardiac surgery
    Karl F Welke
    Division of Cardiothoracic Surgery, Doernbecher Children s Hospital, Oregon Health and Science University, Portland, Oregon 97239 3098, USA
    Ann Thorac Surg 82:164-70; discussion 170-1. 2006
  8. doi request reprint The rush to atrial septal defect closure: is the introduction of percutaneous closure driving utilization?
    Tara Karamlou
    Department of Surgery, Oregon Health and Science University, Portland, Oregon 97239 3098, USA
    Ann Thorac Surg 86:1584-90; discussion 1590-1. 2008
  9. doi request reprint Adults or big kids: what is the ideal clinical environment for management of grown-up patients with congenital heart disease?
    Tara Karamlou
    Division of Cardiothoracic Surgery, Oregon Health and Science University, 3181 SW Sam Jackson Park Rd, Mail Code L 353, Portland, OR 97239, USA
    Ann Thorac Surg 90:573-9. 2010
  10. doi request reprint Renal complications associated with the treatment of patients with congenital cardiac disease: consensus definitions from the Multi-Societal Database Committee for Pediatric and Congenital Heart Disease
    Karl F Welke
    Division of Cardiothoracic Surgery, Oregon Health and Science University, Portland, Oregon 97239 3098, USA
    Cardiol Young 18:222-5. 2008

Detail Information

Publications23

  1. doi request reprint Long-term results after Carpentier-Edwards pericardial aortic valve implantation, with attention to the impact of age
    Karl F Welke
    Medical Data Research Center, Providence Health and Services, Portland, Oregon 97225, USA
    Heart Surg Forum 14:E160-5. 2011
    ....
  2. doi request reprint Chance, bias, and confounding: threats to valid measurement of quality in the context of pediatric cardiac surgery
    Karl F Welke
    Mary Bridge Swedish Pediatric Cardiothoracic Surgery Program, Mary Bridge Children s Hospital and Health Center, 311 South L Street, Tacoma, WA 98415, USA
    Semin Thorac Cardiovasc Surg Pediatr Card Surg Annu 13:79-83. 2010
    ....
  3. doi request reprint The complex relationship between pediatric cardiac surgical case volumes and mortality rates in a national clinical database
    Karl F Welke
    Division of Cardiothoracic Surgery, Oregon Health and Science University, Portland, Ore 97239 3098, USA
    J Thorac Cardiovasc Surg 137:1133-40. 2009
    ..We sought to determine the association between pediatric cardiac surgical volume and mortality using sophisticated case-mix adjustment and a national clinical database...
  4. doi request reprint Comparison of pediatric cardiac surgical mortality rates from national administrative data to contemporary clinical standards
    Karl F Welke
    Division of Cardiothoracic Surgery, Oregon Health and Science University, Portland, Oregon 97239 3098, USA
    Ann Thorac Surg 87:216-22; discussion 222-3. 2009
    ..We calculated pediatric cardiac surgery mortality rates from administrative data and compared them with widely quoted standards from clinical databases...
  5. doi request reprint Mortality rate is not a valid indicator of quality differences between pediatric cardiac surgical programs
    Karl F Welke
    Division of Cardiothoracic Surgery, Department of Surgery, Oregon Health and Science University, Portland, Oregon 97239 3098, USA
    Ann Thorac Surg 89:139-44; discussion 145-6. 2010
    ..Our hypothesis is that case volumes and mortality rates present in pediatric cardiac surgery are too low to allow the use of mortality to differentiate between hospitals...
  6. doi request reprint Common ground: measuring intrainstitutional mortality among pediatric surgical procedures
    Kirk A Caddell
    School of Medicine, Oregon Health and Science University, Portland, OR, USA
    Surgery 149:7-14. 2011
    ..We sought to determine to what degree mortality rates for high-risk pediatric surgical procedures were correlated within institutions...
  7. ncbi request reprint Current assessment of mortality rates in congenital cardiac surgery
    Karl F Welke
    Division of Cardiothoracic Surgery, Doernbecher Children s Hospital, Oregon Health and Science University, Portland, Oregon 97239 3098, USA
    Ann Thorac Surg 82:164-70; discussion 170-1. 2006
    ..Our hypotheses are that (1) mortality rates at high-quality pediatric cardiac programs are lower than published national results despite (2) a change in case mix with a shift away from low complexity operations...
  8. doi request reprint The rush to atrial septal defect closure: is the introduction of percutaneous closure driving utilization?
    Tara Karamlou
    Department of Surgery, Oregon Health and Science University, Portland, Oregon 97239 3098, USA
    Ann Thorac Surg 86:1584-90; discussion 1590-1. 2008
    ..We sought to determine nationwide trends in the use of percutaneous compared with surgical closure and their respective outcomes over an 18-year period...
  9. doi request reprint Adults or big kids: what is the ideal clinical environment for management of grown-up patients with congenital heart disease?
    Tara Karamlou
    Division of Cardiothoracic Surgery, Oregon Health and Science University, 3181 SW Sam Jackson Park Rd, Mail Code L 353, Portland, OR 97239, USA
    Ann Thorac Surg 90:573-9. 2010
    ....
  10. doi request reprint Renal complications associated with the treatment of patients with congenital cardiac disease: consensus definitions from the Multi-Societal Database Committee for Pediatric and Congenital Heart Disease
    Karl F Welke
    Division of Cardiothoracic Surgery, Oregon Health and Science University, Portland, Oregon 97239 3098, USA
    Cardiol Young 18:222-5. 2008
    ..Clinicians caring for patients with congenital heart disease will be able to use this list for databases, quality improvement initiatives, reporting of complications, and comparing strategies for treatment...
  11. doi request reprint Measurement of quality in pediatric cardiac surgery: understanding the threats to validity
    Karl F Welke
    Division of Cardiothoracic Surgery, Oregon Health and Science University, Portland, Oregon 97239 3098, USA
    ASAIO J 54:447-50. 2008
    ..Detailed study of the processes of care by multicenter, multidisciplinary quality improvement initiatives may augment national databases in improving outcomes...
  12. doi request reprint Databases for assessing the outcomes of the treatment of patients with congenital and paediatric cardiac disease--a comparison of administrative and clinical data
    Karl F Welke
    Division of Cardiothoracic Surgery, Oregon Health and Science University, Portland, Oregon 97239 3098, USA
    Cardiol Young 18:137-44. 2008
    ....
  13. doi request reprint Improved quality and cost-effectiveness of coronary artery bypass grafting in the United States from 1988 to 2005
    Howard K Song
    Division of Cardiothoracic Surgery, Oregon Health and Science University, Portland, OR 97239, USA
    J Thorac Cardiovasc Surg 137:65-9. 2009
    ..This study was undertaken to assess the impact of increasing patient complexity and health care cost on coronary artery bypass grafting quality and cost-effectiveness in the United States over an 18-year period...
  14. ncbi request reprint Population-based perspective of long-term outcomes after surgical repair of partial atrioventricular septal defect
    Karl F Welke
    Division of Cardiothoracic Surgery, Oregon Health and Science University, Portland, Oregon 97239 3098, USA
    Ann Thorac Surg 84:624-8; discussion 628-9. 2007
    ..This investigation was designed to determine long-term survival, reoperation rates, and functional status after surgical repair of partial atrioventricular septal defect (PAVSD)...
  15. ncbi request reprint Comparison of cardiac surgery volumes and mortality rates between the Society of Thoracic Surgeons and Medicare databases from 1993 through 2001
    Karl F Welke
    Division of Cardiothoracic Surgery, Oregon Health and Science University, Portland, Oregon 97239 3098, USA
    Ann Thorac Surg 84:1538-46. 2007
    ....
  16. doi request reprint The relationship between hospital surgical case volumes and mortality rates in pediatric cardiac surgery: a national sample, 1988-2005
    Karl F Welke
    Division of Cardiothoracic Surgery, Oregon Health and Science University, Portland, Oregon 97239 3098, USA
    Ann Thorac Surg 86:889-96; discussion 889-96. 2008
    ..We sought to quantify the relationship between hospital volume and pediatric cardiac surgical mortality...
  17. doi request reprint Evolution of treatment options and outcomes for hypoplastic left heart syndrome over an 18-year period
    Tara Karamlou
    Department of Surgery, L 223, Oregon Health and Science University, 3181 Sam Jackson Park Rd, Portland, OR 97239, USA
    J Thorac Cardiovasc Surg 139:119-26; discussion 126-7. 2010
    ..We aimed to describe management strategies for neonates with hypoplastic left heart syndrome over the past 18 years in the United States and to identify determinants of institutional management decisions...
  18. doi request reprint Gender differences in mortality after mitral valve operation: evidence for higher mortality in perimenopausal women
    Howard K Song
    The Division of Cardiothoracic Surgery, Oregon Health and Science University, Portland, Oregon 97239, USA
    Ann Thorac Surg 85:2040-4; discussion 2045. 2008
    ..We hypothesized that gender influences mortality after mitral valve operations and that it varies with age, especially during periods of declining ovarian function...
  19. doi request reprint The influence of surgeon specialty on outcomes in general thoracic surgery: a national sample 1996 to 2005
    Paul H Schipper
    Division of Cardiothoracic Surgery, Oregon Health and Science University, Portland, Oregon 97239 3011, USA
    Ann Thorac Surg 88:1566-72; discussion 1572-3. 2009
    ..While general thoracic surgical procedures are performed by several different surgical subspecialties, debate remains as to whether surgeon specialty impacts outcomes...
  20. ncbi request reprint Mortality as an outcome parameter for pediatric heart surgery
    Karl F Welke
    Division of Cardiothoracic Surgery, Doernbecher Children s Hospital, Oregon Health and Science University, Portland, Oregon 97239 3098, USA
    ASAIO J 52:552-5. 2006
    ..We review the risk adjustment methodologies and data sources used to produce mortality statistics. In addition, the issues of data quality and defining mortality are discussed...
  21. ncbi request reprint Invited commentary
    Karl F Welke
    Division of Cardiothoracic Surgery, Oregon Health and Science University, Portland, OR 97239 3098, USA
    Ann Thorac Surg 81:553-4. 2006
  22. ncbi request reprint Limitations of hospital volume as a measure of quality of care for coronary artery bypass graft surgery
    Karl F Welke
    Division of Cardiothoracic Surgery, Oregon Health and Science University, Portland, Oregon 97239 3098, USA
    Ann Thorac Surg 80:2114-9. 2005
    ..The objective of this study is to quantify the relationship between hospital volume alone and CABG mortality...
  23. ncbi request reprint Advances in congenital heart surgery
    Karl F Welke
    Division of Cardiothoracic Surgery, Oregon Health and Science University, Portland, Oregon 97239, USA
    Curr Opin Pediatr 17:574-8. 2005
    ..We provide an overview of the past year's literature on congenital heart surgery...