Dumbor Ngaage

Summary

Publications

  1. doi request reprint Aprotinin in primary cardiac surgery: operative outcome of propensity score-matched study
    Dumbor L Ngaage
    Castle Hill Hospital, Kingston upon Hull, East Yorkshire, United Kingdom
    Ann Thorac Surg 86:1195-202. 2008
  2. ncbi request reprint On or off pump coronary bypass? Insight from matched and principal component analyses of 8779 operations
    D L Ngaage
    Lancashire Cardiac Centre, Blackpool Victoria Hospital, Whinney Heys Road, Blackpool, UK
    J Cardiovasc Surg (Torino) 56:447-54. 2015
  3. doi request reprint Early and late prognostic implications of coronary artery bypass timing after myocardial infarction
    Dumbor L Ngaage
    Lancashire Cardiac Centre, Blackpool Victoria Hospital, Blackpool, UK
    Eur J Cardiothorac Surg 43:549-54. 2013
  4. doi request reprint Early and late survival after surgical revascularization for ischemic ventricular fibrillation/tachycardia
    Dumbor L Ngaage
    Castle Hill Hospital, Kingston upon Hull, East Yorkshire, United Kingdom
    Ann Thorac Surg 85:1278-81. 2008
  5. ncbi request reprint Are initial valve operations in octogenarians still high-risk in the current era?
    Dumbor L Ngaage
    Department of Cardiothoracic Surgery, Castle Hill Hospital, Kingston upon Hull, East Yorkshire, UK
    J Heart Valve Dis 17:227-32. 2008
  6. ncbi request reprint Mitral regurgitation surgery in heart failure due to ischemic cardiomyopathy: a 24-year experience
    Dumbor L Ngaage
    Division of Cardiovascular Surgery, Mayo Medical Center, Rochester, Minnesota, USA
    J Heart Valve Dis 17:251-9; discussion 259-60. 2008
  7. doi request reprint Changing operative characteristics of patients undergoing operations for coronary artery disease: impact on early outcomes
    Dumbor L Ngaage
    Cardiothoracic Centre, Castle Hill Hospital, Kingston upon Hull, East Yorkshire, United Kingdom
    Ann Thorac Surg 86:1424-30. 2008
  8. doi request reprint Survival of cardiorespiratory arrest after coronary artery bypass grafting or aortic valve surgery
    Dumbor L Ngaage
    Department of Cardiothoracic Surgery, Cardiothoracic Centre, Castle Hill Hospital, Kingston upon Hull, East Yorkshire, United Kingdom
    Ann Thorac Surg 88:64-8. 2009
  9. doi request reprint To graft or not to graft? Do coronary artery characteristics influence early outcomes of coronary artery bypass surgery? Analysis of coronary anastomoses of 5171 patients
    Dumbor L Ngaage
    Cardiothoracic Centre, Castle Hill Hospital, Kingston upon Hull, East Yorkshire, United Kingdom
    J Thorac Cardiovasc Surg 140:66-72, 72.e1. 2010
  10. doi request reprint Early and late prognostic significance of remote and reversible preoperative neurological events in patients undergoing coronary artery bypass grafting
    Dumbor L Ngaage
    Cardiothoracic Centre, Castle Hill Hospital, Kingston upon Hull, East Yorkshire, UK
    Eur J Cardiothorac Surg 37:1075-80. 2010

Collaborators

Detail Information

Publications29

  1. doi request reprint Aprotinin in primary cardiac surgery: operative outcome of propensity score-matched study
    Dumbor L Ngaage
    Castle Hill Hospital, Kingston upon Hull, East Yorkshire, United Kingdom
    Ann Thorac Surg 86:1195-202. 2008
    ..We report a large, single-center experience with aprotinin therapy in primary cardiac operations and discuss the limitations and potential confounders of current treatment strategies...
  2. ncbi request reprint On or off pump coronary bypass? Insight from matched and principal component analyses of 8779 operations
    D L Ngaage
    Lancashire Cardiac Centre, Blackpool Victoria Hospital, Whinney Heys Road, Blackpool, UK
    J Cardiovasc Surg (Torino) 56:447-54. 2015
    ..The aim of this paper was to compare the clinical impact of the different myocardial protection strategies in coronary artery bypass grafting (CABG) patients to facilitate decision-making for use of on- or off-pump technique...
  3. doi request reprint Early and late prognostic implications of coronary artery bypass timing after myocardial infarction
    Dumbor L Ngaage
    Lancashire Cardiac Centre, Blackpool Victoria Hospital, Blackpool, UK
    Eur J Cardiothorac Surg 43:549-54. 2013
    ..Although CABG soon after MI is associated with high morbidity and mortality, the impact of CABG timing on late survival is not clear...
  4. doi request reprint Early and late survival after surgical revascularization for ischemic ventricular fibrillation/tachycardia
    Dumbor L Ngaage
    Castle Hill Hospital, Kingston upon Hull, East Yorkshire, United Kingdom
    Ann Thorac Surg 85:1278-81. 2008
    ..Early series have suggested that recurrent VF/VT threatens survival even after treatment. As late outcome is unknown, we sought to determine if the early survival benefit is sustained...
  5. ncbi request reprint Are initial valve operations in octogenarians still high-risk in the current era?
    Dumbor L Ngaage
    Department of Cardiothoracic Surgery, Castle Hill Hospital, Kingston upon Hull, East Yorkshire, UK
    J Heart Valve Dis 17:227-32. 2008
    ..The average age of cardiac patients continues to increase. As more octogenarians undergo surgery during the current era, the outcome of valve surgery was investigated to determine the operative risk in these patients...
  6. ncbi request reprint Mitral regurgitation surgery in heart failure due to ischemic cardiomyopathy: a 24-year experience
    Dumbor L Ngaage
    Division of Cardiovascular Surgery, Mayo Medical Center, Rochester, Minnesota, USA
    J Heart Valve Dis 17:251-9; discussion 259-60. 2008
    ..The long-term benefits of mitral regurgitation (MR) surgery in ischemic cardiomyopathy (ICM) are controversial. Herein are reported the results and trends of this surgical approach over the past 24-year period...
  7. doi request reprint Changing operative characteristics of patients undergoing operations for coronary artery disease: impact on early outcomes
    Dumbor L Ngaage
    Cardiothoracic Centre, Castle Hill Hospital, Kingston upon Hull, East Yorkshire, United Kingdom
    Ann Thorac Surg 86:1424-30. 2008
    ..This study investigated the effect of temporal changes in operative characteristics on outcomes of surgical revascularization...
  8. doi request reprint Survival of cardiorespiratory arrest after coronary artery bypass grafting or aortic valve surgery
    Dumbor L Ngaage
    Department of Cardiothoracic Surgery, Cardiothoracic Centre, Castle Hill Hospital, Kingston upon Hull, East Yorkshire, United Kingdom
    Ann Thorac Surg 88:64-8. 2009
    ....
  9. doi request reprint To graft or not to graft? Do coronary artery characteristics influence early outcomes of coronary artery bypass surgery? Analysis of coronary anastomoses of 5171 patients
    Dumbor L Ngaage
    Cardiothoracic Centre, Castle Hill Hospital, Kingston upon Hull, East Yorkshire, United Kingdom
    J Thorac Cardiovasc Surg 140:66-72, 72.e1. 2010
    ..Small coronary size and extensive atherosclerosis pose operative challenges during coronary artery bypass grafting. We investigated the influence of coronary characteristics on early operative outcome...
  10. doi request reprint Early and late prognostic significance of remote and reversible preoperative neurological events in patients undergoing coronary artery bypass grafting
    Dumbor L Ngaage
    Cardiothoracic Centre, Castle Hill Hospital, Kingston upon Hull, East Yorkshire, UK
    Eur J Cardiothorac Surg 37:1075-80. 2010
    ..However, data regarding the influence of remote and reversible neurological events on early and late survival are lacking...
  11. doi request reprint Lessons from aprotinin: is the routine use and inconsistent dosing of tranexamic acid prudent? Meta-analysis of randomised and large matched observational studies
    Dumbor L Ngaage
    Cardiothoracic Centre, Castle Hill Hospital, Kingston upon Hull, East Yorkshire, United Kingdom
    Eur J Cardiothorac Surg 37:1375-83. 2010
    ..Further studies are needed to clarify the neurological risk, appropriate indications and dosing of tranexamic acid...
  12. doi request reprint Does aortic valve replacement mitigate the risk of preoperative heart failure?
    Dumbor Ngaage
    Cardiothoracic Centre, Castle Hill Hospital, Kingston upon Hull, East Yorkshire, UK
    Asian Cardiovasc Thorac Ann 18:541-5. 2010
    ..Preoperative heart failure still compromises early and late survival after aortic valve replacement. Surgery should be considered early in patients with aortic valve disease and deferred, when possible, in those with frank heart failure...
  13. doi request reprint Is post-sternotomy percutaneous dilatational tracheostomy a predictor for sternal wound infections?
    Dumbor L Ngaage
    Castle Hill Hospital, Kingston upon Hull, East Yorkshire HU16 5JQ, United Kingdom
    Eur J Cardiothorac Surg 33:1076-9; discussion 1080-1. 2008
    ..Early post-sternotomy tracheostomy is not infrequently considered in this era of percutaneous tracheostomy. There is, however, some controversy about its association with sternal wound infections...
  14. doi request reprint Early neurological complications after coronary artery bypass grafting and valve surgery in octogenarians
    Dumbor L Ngaage
    Castle Hill Hospital, Kingston upon Hull, East Yorkshire, United Kingdom
    Eur J Cardiothorac Surg 33:653-9. 2008
    ..To determine the incidence and risk factors for neurological events complicating cardiac surgery, and the implications for operative outcome in octogenarians...
  15. ncbi request reprint The impact of symptom severity on cardiac reoperative risk: early referral and reoperation is warranted
    Dumbor L Ngaage
    Cardiothoracic Centre, Castle Hill Hospital, Cottingham, East Yorkshire, United Kingdom
    Eur J Cardiothorac Surg 32:623-8. 2007
    ..Studies of reoperative risk have focussed on surgical techniques. We sought to determine the risk and predictors of poor outcome in current practice, and the influence of preoperative symptoms...
  16. ncbi request reprint Influence of preoperative atrial fibrillation on late results of mitral repair: is concomitant ablation justified?
    Dumbor L Ngaage
    Division of Cardiovascular Surgery, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
    Ann Thorac Surg 84:434-42; discussion 442-3. 2007
    ..We therefore investigated AF prevalence in nonrheumatic mitral regurgitation and its effect on late survival and morbidity after repair...
  17. ncbi request reprint Off-pump strategy in high-risk coronary artery bypass reoperations
    Dumbor L Ngaage
    Division of Cardiovascular Surgery, College of Medicine, Mayo Clinic, Rochester, MN 55905, USA
    Mayo Clin Proc 82:567-71. 2007
    ....
  18. ncbi request reprint Does preoperative atrial fibrillation influence early and late outcomes of coronary artery bypass grafting?
    Dumbor L Ngaage
    Division of Cardiovascular Surgery, Mayo Clinic College of Medicine, Rochester, Minn, USA
    J Thorac Cardiovasc Surg 133:182-9. 2007
    ..The study objective was to describe the independent effect of preoperative atrial fibrillation on the outcome of coronary artery bypass grafting, including the causes of death (cardiac vs noncardiac)...
  19. ncbi request reprint Prognostic implications of preoperative atrial fibrillation in patients undergoing aortic valve replacement: is there an argument for concomitant arrhythmia surgery?
    Dumbor L Ngaage
    Division of Cardiovascular Surgery, Mayo Medical Center, Rochester, Minnesota, USA
    Ann Thorac Surg 82:1392-9. 2006
    ..The prognostic significance of preoperative atrial fibrillation (AF) at the time of aortic valve replacement is unknown, as is the potential role for concomitant arrhythmia surgery...
  20. ncbi request reprint Abdominal aortic aneurysm rupture after coronary artery bypass grafting
    Dumbor L Ngaage
    Department of Cardiothoracic Surgery, Leeds General Infirmary, Great George Street, Leeds LS1 3EX, UK
    Cardiovasc Surg 11:237-8. 2003
    ..The factors that predispose cardiac surgery patients with concomitant AAA to increased risk of rupture are discussed...
  21. ncbi request reprint Off-pump coronary artery bypass grafting: the myth, the logic and the science
    Dumbor L Ngaage
    Department of Cardiothoracic Surgery, Yorkshire Heart Centre, Leeds General Infirmary, Great George Street, Leeds LS1 3EX, West Yorkshire, UK
    Eur J Cardiothorac Surg 24:557-70. 2003
    ..And in so doing, explore the myth, the logic and the science of this surgical technique...
  22. ncbi request reprint A cautionary note regarding long-term sequelae of biologic glue
    Dumbor L Ngaage
    Division of Cardiovascular Surgery, Mayo Clinic, Rochester, MN 55905, USA
    J Thorac Cardiovasc Surg 129:937-8. 2005
  23. doi request reprint Cardiopulmonary bypass and left ventricular systolic dysfunction impacts operative mortality differently in elderly and young patients
    Dumbor L Ngaage
    Castle Hill Hospital, Kingston upon Hull, East Yorkshire, United Kingdom
    Eur J Cardiothorac Surg 35:235-40. 2009
    ..This study investigates the predictive risk of preoperative LVSD and CPB time for operative mortality in the two groups of patients...
  24. ncbi request reprint Chronic traumatic aneurysm of the left main coronary artery causing myocardial infarction
    Dumbor L Ngaage
    Department of Cardiovascular Surgery, Mayo Clinic, Rochester, Minnesota 55905, USA
    Ann Thorac Surg 80:2383. 2005
  25. doi request reprint Non-infective morbidity in diabetic patients undergoing coronary and heart valve surgery
    Dumbor L Ngaage
    Cardiothoracic Centre, Castle Hill Hospital, Kingston upon Hull, East Yorkshire, United Kingdom
    Eur J Cardiothorac Surg 35:255-9. 2009
    ..We sought to investigate major non-infective early postoperative complications in diabetic patients...
  26. ncbi request reprint Surgical treatment of cardiac papillary fibroelastoma: a single center experience with eighty-eight patients
    Dumbor L Ngaage
    Division of Cardiovascular Surgery, Mayo Medical Center, Rochester, Minnesota, USA
    Ann Thorac Surg 80:1712-8. 2005
    ..Cardiac papillary fibroelastoma is a rare benign tumor that can cause thromboembolism. We have found no large surgical series describing its treatment and outcome...
  27. ncbi request reprint Off-pump coronary artery bypass grafting: simple concept but potentially sublime scientific value
    Dumbor L Ngaage
    Department of Cardiothoracic Surgery, Leeds General Infirmary, Leeds, United Kingdom
    Med Sci Monit 10:RA47-54. 2004
    ....
  28. ncbi request reprint Saved by the bell: early surgical treatment for cardiosystemic thromboembolism
    Dumbor L Ngaage
    Department of Cardiothoracic Surgery, Yorkshire Heart Centre, Leeds General Infirmary, Leeds, West Yorkshire, United Kingdom
    J Thorac Cardiovasc Surg 123:1010-1. 2002
  29. ncbi request reprint Swallow syncope associated with paroxysmal atrial fibrillation
    Jackie Gordon
    Department of Cardio Thoracic Surgery, Yorkshire Heart Centre, Jubilee Wing, D Floor, The General Infirmary, Leeds, UK
    Eur J Cardiothorac Surg 21:587-90. 2002
    ..Oesophageal function tests and continuous electrocardiographic evaluation is important in the diagnosis of this rare condition...