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D. Keegan · SciRah

Researcher profile · Semantic Scholar

D. Keegan

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D. Keegan — researcher profile on SciRah

h-index: 25
Works: 122
Citations: 2,360

Most-cited papers

An accelerated infliximab induction regimen reduces the need for early colectomy in patients with acute severe ulcerative colitis.
D. Gibson, Z. Heetun, C. Redmond, K. Nanda +5 more
2015Clinical Gastroenterology and Hepatology259 citations
Semantic Scholar
The pregnane X receptor locus is associated with susceptibility to inflammatory bowel disease.
M. Dring, C. Goulding, V. Trimble, D. Keegan +11 more
2006Gastroenterology174 citations
Semantic Scholar
Acceptance and Commitment Therapy Reduces Psychological Stress in Patients With Inflammatory Bowel Diseases.
Brona Wynne, L. McHugh, W. Gao, D. Keegan +8 more
2019Gastroenterology160 citations Open access
Semantic Scholar
N-ECCO Consensus statements on the European nursing roles in caring for patients with Crohn's disease or ulcerative colitis.
M. O'Connor, P. Bager, J. Duncan, J. Gaarenstroom +18 more
2013Journal of Crohn's & Colitis125 citations
Semantic Scholar
DNA Methylation Profiling in Inflammatory Bowel Disease Provides New Insights into Disease Pathogenesis.
E. Mcdermott, Elizabeth J. Ryan, M. Tosetto, D. Gibson +13 more
2016Journal of Crohn's & Colitis117 citations Open access
Semantic Scholar
Body Image Dissatisfaction: Clinical Features, and Psychosocial Disability in Inflammatory Bowel Disease
E. Mcdermott, G. Mullen, Jenny Moloney, D. Keegan +5 more
2015Inflammatory Bowel Diseases89 citations
Semantic Scholar
CRP/Albumin Ratio: An Early Predictor of Steroid Responsiveness in Acute Severe Ulcerative Colitis
D. Gibson, K. Hartery, J. Doherty, J. Nolan +9 more
2017Journal of Clinical Gastroenterology88 citations
Semantic Scholar
Primary sclerosing cholangitis and disease distribution in inflammatory bowel disease.
A. O'Toole, A. Alakkari, D. Keegan, G. Doherty +2 more
2012Clinical Gastroenterology and Hepatology84 citations Open access
Semantic Scholar
Long‐term clinical results of ileocecal resection for Crohn's disease
G. Cullen, A. O'Toole, D. Keegan, K. Sheahan +2 more
2007Inflammatory Bowel Diseases76 citations Open access
Semantic Scholar
Medullary carcinoma of the pancreas in a man with hereditary nonpolyposis colorectal cancer due to a mutation of the MSH2 mismatch repair gene.
N. Banville, R. Geraghty, E. Fox, Dermot T. Leahy +6 more
2006Human Pathology70 citations
Semantic Scholar
Microscopic colitis: clinical characteristics, treatment and outcomes in an Irish population
A. O'Toole, A. Coss, G. Holleran, D. Keegan +4 more
2014International Journal of Colorectal Disease58 citations
Semantic Scholar
Efficacy of Adalimumab as a long term maintenance therapy in ulcerative colitis.
E. Mcdermott, S. Murphy, D. Keegan, D. O'Donoghue +2 more
2013Journal of Crohn's & Colitis58 citations Open access
Semantic Scholar
Ustekinumab Drug Levels in Maternal and Cord Blood in a Woman With Crohn's Disease Treated Until 33 Weeks of Gestation.
C. Rowan, G. Cullen, H. Mulcahy, D. Keegan +4 more
2018Journal of Crohn's & Colitis56 citations
Semantic Scholar
The Body Image Scale: A Simple and Valid Tool for Assessing Body Image Dissatisfaction in Inflammatory Bowel Disease
E. Mcdermott, Jenny Moloney, N. Rafter, D. Keegan +5 more
2014Inflammatory Bowel Diseases51 citations
Semantic Scholar
Heightened Expression of CD39 by Regulatory T Lymphocytes Is Associated with Therapeutic Remission in Inflammatory Bowel Disease
D. Gibson, L. Elliott, E. Mcdermott, M. Tosetto +11 more
2015Inflammatory Bowel Diseases50 citations Open access
Semantic Scholar
Prolonged avoidance of repeat surgery with endoscopic balloon dilatation of anastomotic strictures in Crohn's disease.
K. Nanda, W. Courtney, D. Keegan, K. Byrne +4 more
2013Journal of Crohn's & Colitis46 citations
Semantic Scholar
Hereditary mixed polyposis syndrome due to a BMPR1A mutation
J. M. O'Riordan, D. O'Donoghue, A. Green, D. Keegan +4 more
2009Colorectal Disease43 citations
Semantic Scholar
The Short Health Scale: a valid and reliable measure of health related quality of life in English speaking inflammatory bowel disease patients.
E. Mcdermott, D. Keegan, K. Byrne, G. Doherty +1 more
2013Journal of Crohn's & Colitis42 citations
Semantic Scholar
Screening for mismatch repair deficiency in colorectal cancer: data from three academic medical centers
G. O'Kane, É. Ryan, T. Mcveigh, B. Creavin +19 more
2017Cancer Medicine40 citations Open access
Semantic Scholar
Patient Education in Inflammatory Bowel Disease: A Patient-Centred, Mixed Methodology Study
E. Mcdermott, G. Healy, G. Mullen, D. Keegan +8 more
2018Journal of Crohn's & Colitis36 citations Open access
Semantic Scholar
Surgery, Crohn's Disease, and the Biological Era: Has There Been an Impact?
E. Slattery, D. Keegan, J. Hyland, D. O'Donoghue +1 more
2011Journal of Clinical Gastroenterology31 citations
Semantic Scholar
Management of colorectal cancer in patients with inflammatory bowel disease
D. Kavanagh, M. Carter, D. Keegan, G. Doherty +7 more
2013Techniques in Coloproctology27 citations
Semantic Scholar
Impact of magnetic resonance enterography in the management of small bowel Crohn’s disease
D. Cheriyan, E. Slattery, S. McDermott, A. Kilcoyne +6 more
2013European Journal of Gastroenterology and Hepathology23 citations
Semantic Scholar
Development, validation and clinical assessment of a short questionnaire to assess disease-related knowledge in inflammatory bowel disease patients
D. Keegan, E. Mcdermott, K. Byrne, D. Moloney +2 more
2013Scandinavian Journal of Gastroenterology21 citations
Semantic Scholar
The Stressometer: A Simple, Valid, and Responsive Measure of Psychological Stress in Inflammatory Bowel Disease Patients.
D. Keegan, K. Byrne, G. Cullen, G. Doherty +2 more
2015Journal of Crohn's & Colitis20 citations Open access
Semantic Scholar
Subcutaneous rather than intravenous ustekinumab induction is associated with comparable circulating drug levels and early clinical response: a pilot study
C. Rowan, D. Keegan, K. Byrne, G. Cullen +6 more
2018Alimentary Pharmacology and Therapeutics19 citations Open access
Semantic Scholar
Increased non‐melanoma skin cancer risk in young patients with inflammatory bowel disease on immunomodulatory therapy: a retrospective single‐centre cohort study
J. Clowry, J. Sheridan, R. Healy, S. Deady +8 more
2017Journal of the European Academy of Dermatology and Venereology19 citations Open access
Semantic Scholar
Sources of information and factual knowledge in Europeans with inflammatory bowel diseases: a cross-cultural comparison between German and Irish patients.
Irina Blumenstein, E. Mcdermott, D. Keegan, K. Byrne +4 more
2013Journal of Crohn's & Colitis19 citations Open access
Semantic Scholar
Synchronous lung tumours in a patient with metachronous colorectal carcinoma and a germline MSH2 mutation
Aoife L. Canney, K. Sheahan, D. Keegan, M. Tolan +2 more
2009Journal of Clinical Pathology14 citations
Semantic Scholar
A 5-year prospective observational study of the outcomes of international treatment guidelines for Crohn's disease.
G. Cullen, D. Keegan, H. Mulcahy, D. O'Donoghue
2009Clinical Gastroenterology and Hepatology14 citations
Semantic Scholar
Comparison of medium to long-term outcomes of acute severe ulcerative colitis patients receiving accelerated and standard infliximab induction
D. Gibson, J. Doherty, M. McNally, J. Campion +14 more
2019Frontline Gastroenterology13 citations Open access
Semantic Scholar
Magnetic resonance enterography findings as predictors of clinical outcome following antitumor necrosis factor treatment in small bowel Crohn’s disease
D. Gibson, D. Murphy, A. Smyth, S. McEvoy +6 more
2015European Journal of Gastroenterology and Hepathology13 citations
Semantic Scholar
The Influence of CTGF Single-Nucleotide Polymorphisms on Outcomes in Crohn's Disease
J. Burke, R. O'Connell, G. Lennon, G. Doherty +7 more
2013Annals of Surgery13 citations
Semantic Scholar
Mortality in inflammatory bowel disease patients under 65 years of age
A. O'Toole, P. Walsh, D. Keegan, K. Byrne +3 more
2014Scandinavian Journal of Gastroenterology8 citations
Semantic Scholar
P336 TNF alpha inhibitor use in pregnancy: experience in a European cohort
O. Kelly, K. Hartery, K. Boland, G. Cullen +5 more
20146 citations Open access
Semantic Scholar
Mycophenolate mofetil following intolerance or failure of thiopurine therapy in inflammatory bowel diseases
E. McDermott, D. Keegan, B. Hall, E. N. Mhuruchu +4 more
2011Alimentary Pharmacology and Therapeutics6 citations
Semantic Scholar
A Randomised Controlled Trial of Acceptance and Commitment Therapy (ACT) for the Treatment of Stress in Inflammatory Bowel Disease
C. Rowan, Brona Wynne, L. McHugh, D. Keegan +4 more
20175 citations
Semantic Scholar
Report of successful use of ustekinumab in Crohn’s disease refractory to three anti-TNF therapies
Zaid Heetun, D. Keegan, D. O'Donoghue, Glen A. Doherty
2014Irish Journal of Medical Science5 citations
Semantic Scholar
P452 Medium to long-term outcomes in patients receiving accelerated dose infliximab induction for acute severe ulcerative colitis (ASUC) in a multi-centre cohort
D. Gibson, M. McNally, J. Doherty, Á. Keogh +13 more
20183 citations
Semantic Scholar
P370 A randomised controlled trial of acceptance and commitment therapy for the treatment of stress in inflammatory bowel disease.
H. Mulcahy, Brona Wynne, L. McHugh, C. Rowan +4 more
2017Journal of Crohn's & Colitis3 citations Open access
Semantic Scholar
Su1813 CRP/Albumin Ratio: A Novel Predictor of Early Colectomy in Acute Severe Ulcerative Colitis
D. Gibson, K. Hartery, J. Doherty, J. Nolan +8 more
20163 citations
Semantic Scholar
Awareness of adverse effects of Azathioprine in patients with Inflammatory Bowel Disease – more to be done?
A. Spence, Regina Lee, D. Keegan, Glen A. Doherty +2 more
2014Ulster medical journal3 citations
Semantic Scholar
W1116 Sequential Ciclosporine and Infliximab Rescue Therapy in Steroid Refractory Ulcerative Colitis
A. O'Toole, D. Keegan, H. Mulcahy, D. O'Donoghue
20093 citations
Semantic Scholar
P261 Grading post-operative recurrence in Crohn's disease: a comparison between MRE and ileocolonoscopy.
A. Lavelle, D. Keegan, K. Byrne, J. Sheridan +4 more
2017Journal of Crohn's & Colitis2 citations
Semantic Scholar
Magnetic resonance colonography for assessment of acute severe colitis in pregnancy
Z. Heetun, D. Kavanagh, D. Keegan, H. Mulcahy +3 more
2014Irish Journal of Medical Science2 citations
Semantic Scholar
PREDICTORS OF COLECTOMY IN HOSPITALISED PATIENTS WITH ACUTE SEVERE COLITIS
D. Gibson, N. Rafter, D. Keegan, K. Byrne +7 more
2013Gut2 citations Open access
Semantic Scholar
Infliximab in Crohn's disease – a pragmatic approach?
D. Keegan, D. Kevans, H. Mulcahy, D. O'Donoghue
20062 citations
Semantic Scholar
Mo1868 - Medium to Long Term Outcomes in Patients Receiving Accelerated Dose Infliximab Induction for Acute Severe Ulcerative Colitis (ASUC) in a Mulit-Centre Cohort
D. Gibson, J. Doherty, M. McNally, Á. Keogh +13 more
20181 citations
Semantic Scholar
Sa1193 Ulcerative Proctitis: Predictors and Outcomes of Disease Extension in UC
K. Boland, Orlaith Kelly, K. Sheahan, H. Mulcahy +3 more
20151 citations
Semantic Scholar
Su1405 The Safety of Biologic Use in the Pregnant IBD Patient: Analysis of Patient Characteristics, Pregnancy and Neonatal Outcomes
Orlaith Kelly, K. Hartery, K. Boland, D. Keegan +5 more
20141 citations Open access
Semantic Scholar

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H. Mulcahy×36
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H. Mulcahy — researcher profile on SciRah
G. Doherty×29
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G. Doherty — researcher profile on SciRah
K. Byrne×26
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G. Cullen×22
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D. O'Donoghue — researcher profile on SciRah

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E. Mcdermott×9

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J. Sheridan — researcher profile on SciRah

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K. Sheahan — researcher profile on SciRah

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Glen A. Doherty — researcher profile on SciRah

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