Prof David Meagher

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Prof David
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Professor of Psychiatry
Academic Qualifications: 

MB, BCh, BAO (1988)

MD (2001)

MRCPsych (1993)

MSc Neuroscience (1996)

MHSc Clinical Teaching (2008)

PhD (2011)

Professional Experience: 

Consultant Psychiatrist, Department of Adult Psychiatry, Midwestern Regional Hospital, Limerick (February 2001 to date)

Foundation Chair, Head of Teaching and Research in Psychiatry, University of Limerick School of Medicine, University of Limerick (April 2010 to date)

Vice-Dean for Postgraduate Training in Psychiatry, Dean of UL-Midwest Deanery, College of Psychiatrists for Ireland (December 2013-date)

Research Interests: 

Research interests include the neuropsychiatry of delirium across clinical settings with particular emphasis on palliative care, consultation-liaison psychiatry and elderly medical populations, including research activity focusing on definition and nosology, improving detection and assessment, clinical (motor activity) subtyping, management and prognostic indicators. Current work is focused upon the use of computer-assisted technologies in the detection and monitoring of patients with acute cognitive failure/delirium.

Director of the Cognitive Impairment Research Group (CIRG) at the University of Limerick which involves supervision of 9 MD-PhD students and includes collaborative research with centers in the UK, USA, The Netherlands, Italy, Greece, Japan, Germany and India.

Vice-President and founder member, European Delirium Association (2006-2014)

President and founder of the Irish Delirium Society (2013 to date)

Curent Grants: 

PI on HRB (HRA_POR_2011/48: 165K)

PI on AIIPC/ HRB (SRN/2012/1: 180K)

Co-PI: 2 active HRB project grants totaling 400K (HRA_Research project Grants 2010 and HRA_POR_2012/4).

Approximately 125 presentations at scientific conferences and academic meetings.

H-Index 31.

Research gate rating is 43 (i.e top 2% internationally).

Publication Record: 

Helmi L, Meagher D, O'Mahony E, O'Neill D, Mulligan O, Murthy S, McCarthy G, Adamis D. Agreement and conversion formula between mini-mental state examination and montreal cognitive assessment in an outpatient sample. World J Psychiatry. 2016; 22;6:358-64.

Morandi A, Davis D, Bellelli G, Arora RC, Caplan GA, Kamholz B, Kolanowksi A, Fick DM, Kreisel S, MacLullich A, Meagher D, Neufeld K, Pandharipande PP, Richardson S, Slooter AJ, Taylor JP, Thomas C, Tieges Z, Teodorczuk A, Voyer P, Rudolph JL. The Diagnosis of Delirium Superimposed on Dementia: An Emerging Challenge. J Am Med Dir Assoc. 2016; 16. pii: S1525-8610(16)30292-4.

Walsh KA, O'Regan NA, Byrne S, Browne J, Meagher DJ, Timmons S. Patterns of psychotropic prescribing and polypharmacy in older hospitalized patients in Ireland: the influence of dementia on prescribing.Int Psychogeriatr. 2016; 16:1-14.

Morandi A, Han JH, Meagher D, Vasilevskis E, Cerejeira J, Hasemann W, MacLullich AM, Annoni G, Trabucchi M, Bellelli G. Detecting Delirium Superimposed on Dementia: Evaluation of the Diagnostic Performance of the Richmond Agitation and Sedation Scale.

J Am Med Dir Assoc. 2016 ; 1;17(9):828-33.

O'Reilly M, Larkin P, Conroy M, Twomey F, Lucey M, Dunne C, Meagher DJ. The Impact of a Novel Tool for Comprehensive Assessment of Palliative Care (MPCAT) on Assessment Outcome at 6- and 12-Month Follow-Up. J Pain Symptom Manage. 2016; 52(1):107-16.

Sepulveda E, Franco JG, Trzepacz PT, Gaviria AM, Meagher DJ, Palma J, Viñuelas E, Grau I, Vilella E, de Pablo J. Delirium diagnosis defined by cluster analysis of symptoms versus diagnosis by DSM and ICD criteria: diagnostic accuracy study.BMC Psychiatry. 2016; 26;16:167.

Trzepacz PT, Meagher DJ, Franco JG. Comparison of diagnostic classification systems for delirium with new research criteria that incorporate the three core domains. J Psychosom Res. 2016;84:60-8.

Brady NM, Manning E, O'Shea E, O'Regan NA, Meagher D, Timmons S. Hospital discharge data-sets grossly under-represent dementia-related activity in acute hospitals: a cohort study in five Irish acute hospitals. Int J Geriatr Psychiatry. 2016 Apr 5. doi: 10.1002/gps.4478.

Leonard M, McInerney S, McFarland J, Condon C, Awan F, O'Connor M, Reynolds P, Meaney AM, Adamis D, Dunne C, Cullen W, Trzepacz PT, Meagher DJ. Comparison of cognitive and neuropsychiatric profiles in hospitalised elderly medical patients with delirium, dementia and comorbid delirium-dementia. BMJ Open. 2016;6(3):e009212. doi: 10.1136/bmjopen-2015-009212.

Adamis D, Meagher D, Williams J, Mulligan O, McCarthy G. A systematic review and meta-analysis of the association between the apolipoprotein E genotype and delirium. Psychiatr Genet. 2016;26(2):53-9.

Adamis D, Scholtens RM, de Jonghe A, van Munster BC, de Rooij SE, Meagher DJ. Psychometric evaluation of the DMSS-4 in a cohort of elderly post-operative hip fracture patients with delirium. Int Psychogeriatr. 2016;28(7):1221-8.

Leahy D, Schaffalitzky E, Saunders J, Armstrong C, Meagher D, Ryan P, Dooley B, McNicholas F, McGorry P, Cullen W. Role of the general practitioner in providing early intervention for youth mental health: a mixed methods investigation. Early Interv Psychiatry. 2015 Dec 22. doi: 10.1111/eip.12303.

Fitzgerald J, O'Regan N, Adamis D, Timmons S, Dunne C, Trzepacz P, Meagher DConcordance between the delirium motor subtyping scale (DMSS) and the abbreviated version (DMSS-4) over longitudinal assessment in elderly medical inpatients. Int Psychogeriatr. 2016;28:845-51.

Donoghue L, Elias T, Leonard M, Exton C, Dunne C, Meagher J, Adamis D, Meagher DDevelopment of a novel computerised version of the Month Backwards Test: A comparison of performance in hospitalised elderly patients and final year medical students. Comput Biol Med. 2016;68:1-8.

Hickey L, Hannigan A, O'Regan A, Khalil S, Meagher D, Cullen W. Psychological morbidity among young adults attending primary care: a retrospective study.Early Interv Psychiatry. 2015 Oct 15. doi: 10.1111/eip.12284.

Meagher J, Leonard M, Donoghue L, O'Regan N, Timmons S, Exton C, Cullen W, Dunne C, Adamis D, Maclullich AJ, Meagher DMonths backward test: A review of its use in clinical studies. World J Psychiatry. 2015; 5(3):305-14.

Timmons S, Manning E, Barrett A, Brady NM, Browne V, O'Shea E, Molloy DW, O'Regan NA, Trawley S, Cahill S, O'Sullivan K, Woods N, Meagher D, Ni Chorcorain AM, Linehan JG. Dementia in older people admitted to hospital: a regional multi-hospital observational study of prevalence, associations and case recognition. Age Ageing. 2015;44:993-9.

Adamis D, Meagher D, Murray O, O'Neill D, O'Mahony E, Mulligan O, McCarthy G. Evaluating attention in delirium: A comparison of bedside tests of attention. Geriatr Gerontol Int. 2016;16:1028-35.

Bellelli G, Nobili A, Annoni G, Morandi A, Djade CD, Meagher DJ, Maclullich AM, Davis D, Mazzone A, Tettamanti M, Mannucci PM; REPOSI (REgistro POliterapie SIMI) Investigators. Under-detection of delirium and impact of neurocognitive deficits on in-hospital mortality among acute geriatric and medical wards. Eur J Intern Med. 2015; 26:696-704.

Morandi A, Lucchi E, Turco R, Morghen S, Guerini F, Santi R, Gentile S, Meagher D, Voyer P, Fick DM, Schmitt EM, Inouye SK, Trabucchi M, Bellelli G. Delirium superimposed on dementia: A quantitative and qualitative evaluation of informal caregivers and health care staff experience. J Psychosom Res. 2015; 79:272-80.

Morandi A, Lucchi E, Turco R, Morghen S, Guerini F, Santi R, Gentile S, Meagher D, Voyer P, Fick D, Schmitt EM, Inouye SK, Trabucchi M, Bellelli G. Delirium superimposed on dementia: A quantitative and qualitative evaluation of patient experience. J Psychosom Res. 2015;79:281-7.

Uchida M, Okuyama T, Ito Y, Nakaguchi T, Miyazaki M, Sakamoto M, Kamiya T, Sato S, Takeyama H, Joh T, Meagher D, Akechi T. Prevalence, course and factors associated with delirium in elderly patients with advanced cancer: a longitudinal observational study. Jpn J Clin Oncol. 2015;45:934-40.

Adamis D, Meagher D, O'Neill D, McCarthy G. The utility of the clock drawing test in detection of delirium in elderly hospitalised patients. Aging Ment Health. 2016;20:981-6.

Thurber S, Kishi Y, Trzepacz PT, Franco JG, Meagher DJ, Lee Y, Kim JL, Furlanetto LM, Negreiros D, Huang MC, Chen CH, Kean J, Leonard M. Confirmatory Factor Analysis of the Delirium Rating Scale Revised-98 (DRS-R98). J Neuropsychiatry Clin Neurosci. 2015;27:e122-7.

Adamis D, Rooney S, Meagher D, Mulligan O, McCarthy G. A comparison of delirium diagnosis in elderly medical inpatients using the CAM, DRS-R98, DSM-IV and DSM-5 criteria. Int Psychogeriatr. 2015;27:883-9.

Adamis D, Devaney A, Shanahan E, McCarthy G, Meagher DDefining 'recovery' for delirium research: a systematic review. Age Ageing. 2015; 44:318-21.

Validation of a consensus method for identifying delirium from hospital records.

Kuhn E, Du X, McGrath K, Coveney S, O'Regan N, Richardson S, Teodorczuk A, Allan L, Wilson D, Inouye SK, MacLullich AM, Meagher D, Brayne C, Timmons S, Davis D.

PLoS One. 2014 Nov 4;9(11):e111823. doi: 10.1371/journal.pone.0111823. eCollection 2014.

European Delirium Association; American Delirium Society. The DSM-5 criteria, level of arousal and delirium diagnosis: inclusiveness is safer. BMC Med. 2014; 8;12:141.

Meagher D, O’Regan N, Ryan D, Connolly W, Boland E, O’Caoimhe R, Clare J, Mcfarland J, Tighe S, Leonard M, Adamis D, Trzepacz PT,Timmons S. The footprint of delirium in a general hospital: frequency and prognostic implications of delirium and subsyndromal delirium in an adult acute hospital population. British J Psychiatry 2014;205:478-85.

O’Sullivan R, Inouye S, Meagher D. Delirium and depression: Inter-relationship and overlap in elderly people. Lancet Psychiatry 2014;1:303-11.

Lundberg AS, Nørgreen Gustafsson L, Meagher D, Munk-Jørgensen P. Mortality of Psychiatric Inpatients with Delirium. A Nationwide Study from 1995 through 2012. J Psychosomatic Res 2014;77:226-31.

O’Connell, Kennelly S, Cullen W, Meagher D. Managing delirium in everyday practice – towards Cognitive Friendly Hospitals. Advances in Psych Treatments 2014; 20: 380-389.

Kosar CM, Tabloski PA, Travison TG, JonesRN, Schmitt E, Puelle MR, Inloes JB, Saczynski JS, Marcantonio ER, Meagher D, Carrington-Reid M, Inouye SK. Effect of preoperative pain and depression on the development of post operative delirium. Lancet Psychiatry 2014; 1(6):431-436.

Meagher DJ, Morandi A, Inouye SK, Ely W, Adamis D, Maclullich AJ, Rudolph JL, Neufeld K, Leonard M, Bellelli G, Davis D, Teodorczuk A, Kriesel S, Thomas C, Hasemann W, Timmons S, O Regan N, Grover S, Jabbar F, Cullen W, Dunne C, Kamholz B, Van Munster BC, De Rooij SE, De Jonghe J, Trzepacz PT. Concordance between DSM-IV and DSM-5 criteria for delirium diagnosis in a pooled database of 768 prospectively evaluated patients using the delirium rating scale-revised-98.BMC Med. 2014 Sep 30;12(1):164

Adamis D, Meagher D, Treloar A, Dunne C, Larvin M, Martin FC, Macdonald AJ. Phenomenological and biological correlates of improved cognitive function in hospitalized elderly medical inpatients. Arch Gerontol Geriatr. 2014 Aug 19. pii: S0167-4943(14)00145-9

Davis DH, Barnes LE, Stephan BC, MacLullich AM, Meagher D, Copeland J, Matthews FE, Brayne C; MRC Cognitive Function and Ageing Study. The descriptive epidemiology of delirium symptoms in a large population-based cohort study: results from the Medical Research Council Cognitive Function and Ageing Study (MRC CFAS).BMC Geriatr. 2014 Jul 28;14:87

O'Sullivan R, Meagher D, Leonard M, Watne LO, Hall RJ, Maclullich AM, Trzepacz P, Adamis D. A comparison of the revised Delirium Rating Scale (DRS-R98) and the Memorial Delirium Assessment Scale (MDAS) in a palliative care cohort with DSM-IV delirium. Palliat Support Care. 2014 Jul 3:1-8.

Schaffalitzky E, Leahy D, Armstrong C, Gavin B, Latham L, McNicholas F, Meagher D, O'Connor R, O'Toole T, Smyth BP, Cullen W. 'Nobody really gets it': a qualitative exploration of youth mental health in deprived urban areas. Early Interv Psychiatry. 2014 Jun 23. doi: 10.1111/eip.12165.

Watne LO, Hall RJ, Molden E, Raeder J, Frihagen F, Maclullich AM, Juliebø V, Nyman A, Meagher D, Wyller TB.Anticholinergic Activity in Cerebrospinal Fluid and Serum in Individuals with Hip Fracture with and without Delirium. J Am Geriatr Soc. 2014; 62: 94-102.

Leonard MM, Nekolaichuk C, Meagher DJ, Barnes C, Gaudreau JD, Watanabe S, Agar M, Bush SH, Lawlor PG. Practical Assessment of Delirium in Palliative Care.J Pain Symptom Manage. 2014 Apr 21. pii: S0885-3924(14)00056-6.

Lally K, Nathan-V Y, Dunne S, McGrath D, Cullen W, Meagher D, Coffey JC, Dunne C. Awareness of sexually transmitted infection and protection methods among university students in Ireland. Ir J Med Sci. 2014 Feb 8 (epub ahead of print).

Lawlor PG, Davis DH, Ansari M, Hosie A, Kanji S, Momoli F, Bush SH, Watanabe S, Currow DC, Gagnon B, Agar M, Bruera E, Meagher D, de Rooij SE, Adamis D, Caraceni A, Marchington K, Stewart DJ. An Analytic Framework for Delirium Research in Palliative Care Settings: Integrated Epidemiological, Clinician-Researcher and Knowledge User Perspectives. J Pain Symptom Manage. 2014 Apr 8. pii: S0885-3924(14)00157-2.

O'Regan NA, Ryan DJ, Boland E, Connolly W, McGlade C, Leonard M, Clare J, Eustace JA, Meagher D, Timmons S. Attention! A good bedside test for delirium?J Neurol Neurosurg Psychiatry. 2014 epub: Feb 25

Bush SH, Kanji S, Pereira JL, Davis DH, Currow DC, Meagher D, Rabheru K, Wright D, Bruera E, Agar M, Hartwick M, Gagnon PR, Gagnon B, Breitbart W, Regnier L, Lawlor PG. Treating an Established Episode of Delirium in Palliative Care: Expert Opinion and Review of the Current Evidence Base With Recommendations for Future Development. J Pain Symptom Manage. 2014 Jan 28. pii: S0885-3924(13)00671-4.

McAuliffe R, O'Connor L, Meagher DParents' experience of living with and caring for an adult son or daughter with schizophrenia at home in Ireland: a qualitative study. J Psychiatr Ment Health Nurs. 2014; 21:145-53.

Meagher D, Adamis D, Leonard M, Trzepacz P, Grover S, Jabbar F, Meehan K, O'Connor M, Cronin C, Reynolds P, Fitzgerald J, O'Regan N, Timmons S, Slor C, de Jonghe J, de Jonghe A, van Munster BC, de Rooij SE, Maclullich A. Development of an abbreviated version of the delirium motor subtyping scale (DMSS-4). Int Psychogeriatr. 2014; 26:693-702

Slor, CJ, Adamis, D, Jansen, RWMM, Meagher, DJ, Witlox, J, Houdijk, APJ, de Jonghe, JFM. Validation and psychometric properties of the Delirium Motor Subtype Scale in elderly hip fracture patients (Dutch version). Archives Of Gerontology And Geriatrics 2014; 58 :140-144.

Sweet L, Adamis D, Meagher D, Davis D, Currow D, Bush SH, Barnes C, Hartwick M, Agar M, Simon J, Breitbart W, Macdonald N, Lawlor PG. Ethical Challenges and Solutions Regarding Delirium Studies in Palliative Care. J Pain Symptom Manage. 2013 Dec 31. pii: S0885-3924(13)00611-8. doi: 10.1016/j.

Leonard M, Adamis D, Saunders J, Trzepacz P, Meagher DA longitudinal study of delirium phenomenology indicates widespread neural dysfunction. Palliat Support Care. 2013 Nov 4:1-10.

Leahy D, Schaffalitzky E, Armstrong C, Bury G, Cussen-Murphy P, Davis R, Dooley B, Gavin B, Keane R, Keenan E, Latham L, Meagher D, McGorry P, McNicholas F, O'Connor R, O'Dea E, O'Keane V, O'Toole TP, Reilly E, Ryan P, Sanci L, Smyth BP, Cullen W. Primary care and youth mental health in Ireland: qualitative study in deprived urban areas. BMC Fam Pract. 2013 14:194. doi: 10.1186/1471-2296-14-194.

Maclullich AM, Anand A, Davis DH, Jackson T, Barugh AJ, Hall RJ, Ferguson KJ, Meagher DJ, Cunningham C. New horizons in the pathogenesis, assessment and management of delirium. Age Ageing 2013; 42:667-74.

Rogers C, Heatherington S, Carroll M, Leonard M, Cullen W, Meagher D. An analysis of 100 referrals for depression from primary care to an adult mental health service. IJPM 30:237-44.

Fitzgerald JM, Krause KE, Yermak D, Dunne S, Hannigan A, Cullen W, Meagher D, McGrath D, Finucane P, Coffey C, Dunne C. The first survey of attitudes of medical students in Ireland towards termination of pregnancy. J Med Ethics. 2013 Aug 20. doi: 10.1136/medethics-2013-101608.

Morandi A, Davis D, Taylor JK, Bellelli G, Olofsson B, Kreisel S, Teodorczuk A, Kamholz B, Hasemann W, Young J, Agar M, de Rooij SE, Meagher D, Trabucchi M, Maclullich AM. Consensus and variations in opinions on delirium care: a survey of European delirium specialists. Int Psychogeriatr. 2013; 25:2067-75.

Rhodius-Meester HF, van Campen JP, Fung W, Meagher DJ, van Munster BC, de Jonghe JF. Development and validation of the Informant Assessment of Geriatric Delirium Scale (I-AGeD). Recognition of delirium in geriatric patients. Eur Geriatr Med 2013; 44:206-14.

Fitzgerald JM, Adamis D, Trzepacz PT, O'Regan N, Timmons S, Dunne C, MeagherDJ. Delirium: A disturbance of circadian integrity? Med Hypotheses. 2013; 81: 567-86.

Bury G, Field CA, Kaner E, Keane R, Keenan E, Meagher D, Murphy B, O'Gorman CS, O'Toole TP, Saunders J, Smyth BP, Dunne C, Cullen W. Psychosocial interventions for alcohol use among problem drug users: protocol for a feasibility study in primary care. Klimas J, Anderson R, Bourke M, JMIR Res Protoc. 2013;2:e26.

O'Regan NA, Law TW, Dunne D, Mohamed A, O'Brien D, Marafi H, Meagher D, Clare J, Timmons S. Delirium in older postoperative hip fracture patients. Hip Int. 2013; 23: 424-5.

O'Regan A, Culhane A, Dunne C, Griffin M, McGrath D, Meagher D, O'Dwyer P, Cullen W. Integrating postgraduate and undergraduate general practice education: qualitative study. Educ Prim Care. 2013;24:158-64

Slor CJ, Adamis D, Jansen RW, Meagher DJ, Witlox J, Houdijk AP, de Jonghe JF. Delirium motor subtypes in elderly hip fracture patients: risk factors, outcomes and longitudinal stability. J Psychosom Res. 2013;74:444-9.

Meagher DJ, McLoughlin L, Leonard M, Hannon N, Dunne C, O'Regan N. What Do We Really Know About the Treatment of Delirium With Antipsychotics? Ten Key Issues for Delirium Pharmacotherapy. Am J Geriatr Psychiatry. 2013; 21: 1223-38.

Slor CJ, Witlox J, Adamis D, Meagher DJ, van der Ploeg T, Jansen RW, van Stijn MF, Houdijk AP, van Gool WA, Eikelenboom P, de Jonghe JF. Predicting delirium duration in elderly hip-surgery patients: does early symptom profile matter?Curr Gerontol Geriatr Res. 2013:962321.

Adamis D, Slor CJ, Leonard M, Witlox J, de Jonghe JF, Macdonald AJ, Trzepacz P, Meagher D. Reliability of delirium rating scale (DRS) and delirium rating scale-revised-98 (DRS-R98) using variance-based multivariate modelling. J Psychiatr Res. 2013; 47:966-71.

O'Hanlon S, O'Regan N, Maclullich AM, Cullen W, Dunne C, Exton C, Meagher D.Improving delirium care through early intervention: from bench to bedside to boardroom. J Neurol Neurosurg Psychiatry. 2014;85:207-13

Ryan DJ, O'Regan NA, Caoimh RÓ, Clare J, O'Connor M, Leonard M, McFarland J, Tighe S, O'Sullivan K, Trzepacz PT, Meagher D, Timmons S. Delirium in an adult acute hospital population: predictors, prevalence and detection. BMJ Open. 2013;7;3(1). doi:pii: e001772. 10.1136/bmjopen-2012-001772.

O'Regan NA, Fitzgerald J, Timmons S, O'Connell H, Meagher DDelirium: a key challenge for perioperative care. Int J Surg. 2013;11:136-44.

O'Regan A, Culhane A, Dunne C, Griffin M, Meagher D, McGrath D, O'Dwyer P, Cullen W. Towards vertical integration in general practice education: literature review and discussion paper. Ir J Med Sci. 2013;182:319-24.

Franco, JG, Trzepacz, PT, Meagher, DJ, Kean, J, Lee, Y, Kim, JL, Kishi, Y, Furlanetto, LM, Negreiros, D, Huang, MC, Chen, CH, Leonard, M, de Pablo, J. Three Core Domains of Delirium Validated Using Exploratory and Confirmatory Factor Analyses. Psychosomatics 2013; 54 :227-238.

Slor CJ, Witlox J, Jansen RW, Adamis D, Meagher DJ, Tieken E, Houdijk AP, van Gool WA, Eikelenboom P, de Jonghe JF. Affective functioning after delirium in elderly hip fracture patients. Int Psychogeriatr. 2013; 25:445-55.

Healy, D, Naqvi, S, Meagher, D, Cullen, W, Dunne, C.  Primary care support for youth mental health: a preliminary evidence base for Ireland's Mid-West. Irish Journal of Medical Science 2013; 182 :237-243.

Grover S, Mattoo SK, Aarya KR, Pratim Das P, Chakrabarty K, Trzepacz P, Gupta N, Meagher D. Replication analysis for composition of the Delirium Motor Subtype Scale (DMSS) in a referral cohort from Northern India. Psychiatry Res. 2013; 206:68-74.

Hall RJ, Meagher DJ, MacLullich AM Delirium detection and monitoring outside the ICU. Best Pract Res Clin Anaesthesiol. 2012; 26:367-83.

Connolly D, Leahy D, Bury G, Gavin B, McNicholas F, Meagher D, O’Kelly FD, Wiehe P, Cullen W. Can general practice help address youth mental health? Aretrospective cross-sectional study in Dublin’s south inner city. Early Interv Psychiatry 2012; 6:332-40.

Trzepacz PT, Franco JG, Meagher DJ, Lee Y, Kim JL, Kishi Y, Furlanetto LM, Negreiros D, Huang MC, Chen CH, Kean J, Leonard M. Phenotype of subsyndromal delirium using pooled multicultural Delirium Rating Scale--Revised-98 data. J Psychosom Res. 2012; 73:10-7.

O'Brien S, McFarland J, Kealy B, Pullela A, Saunders J, Cullen W, Meagher DA randomized-controlled trial of intensive case management emphasizing the recovery model among patients with severe and enduring mental illness. Ir J Med Sci. 2012; 181:301-8.

Meagher D, Leonard M, Donnelly S, Conroy M, Adamis D, Trzepacz PT. A longitudinal study of motor subtypes in delirium: frequency and stability during episodes. J Psychosomatic Res 2012;72: 236-41.

Mattoo SK, Grover S, Chakravarty G, Trzepacz PT, Gupta N, Meagher D. Symptom Profile and Etiology of Delirium in a Referral Population in Northern India: Factor Analysis of  the DRS-R98. J Neuropsychiatry and Clin Neurosci 2012; 24:95-101.

Meagher D, Leonard M, Donnelly S, Conroy M, Adamis D, Trzepacz PT. A Longitudinal Study of Motor Subtypes in Delirium: Relationship with Other Phenomenology, Etiology, Medication Exposure and Prognosis. J Psychosomatic Res 2011;71:395-403.

Meagher D, Adamis D, Trzepacz P, Leonard M. Features of subsyndromal and persistent delirium. Br J Psychiatry 2011; 200:37-44.

Adamis D, Meagher DJ. Insulin-Like Growth Factor I and the pathogenesis of delirium: a review of current evidence. J Aging Res 2011;951403 epub Jul 3.

Cullen W, Broderick N, Connolly D, Meagher D. What is the role of general practice in addressing youth mental health? A discussion paper. Ir J Med Sci 2012; 181:189-97.

Young J, Meagher D, MacLullich A. Cognitive assessment of older people. BMJ 2011; Sept 7:343:d5042.

Jabbar F, Leonard M, Meehan K, Cronin C, O’Connor M, Reynolds P, Meaney AM, Meagher D. Neuropsychiatric and cognitive profile of patients with DSM- IV delirium referred to an old age psychiatry consultation-liaison service. Int Psychogeriatrics 2011; 23:1167-74.

Leonard M, Conroy M, Donnelly S, Trzepacz P, Meagher D. Phenomenological and Neuropsychological Profile Across Motor Variants in Delirium in a Palliative care Unit. Journal of Neuropsychiatry and Clinical Neurosciences 2011;23:180-8.

Uzoechina C, Hilvering P, Rogers C, Obrien S, Pullela A, Yousafzai M, Meagher D. Off-label prescribing in patients with recurrent depressive disorder attending a community mental health service. The Psychiatrist 2011; 35: 84-89 .

Enriquez S, Tighe S, Fitzgibbon N, O’Flaithbheartaigh S, Meagher D. Five years of ECT in Limerick Mental Health Services : the relationship between consent status and treatment experiences. Irish Journal of Psychological Medicine  2010; 27: 155-60.

Meagher D, Leonard M, Donnelly S, Conroy M, Saunders J, Trzepacz P. Comparison of neuropsychiatric and cognitive profiles in delirium, dementia, comorbid delirium-dementia and cognitively intact controls. J Neurol Neurosurg and Psychiatry 2010;81:876-81.

Godfrey A, Leonard M, Donnelly S, Conroy M, Olaighin G, Meagher D. Validating a new clinical subtyping scheme for delirium with electronic motion analysis. Psychiatry Res 2010;178:186-90.

Gupta N, Sharma P, Meagher D. Predictors of delayed identification of delirium in a general hospital liaison psychiatry service: a study from North India. Asian J Psychiatry 2010:3:31-32.

Meagher DJImpact of an educational workshop upon attitudes towards pharmacotherapy for delirium. Int Psychogeriatr 2010;22:938-46.

Meagher D, O’Brien S, Pullela A, Oshun A, Brosnan P. Multidisciplinary activities in a community mental health service: relationship to Health of the Nation Outcome Scale scores and diagnosis. Psychiatric Bulletin 2009;33:273-5.

Leonard M, Spiller J, Keen J, MacLullich A, Kamholtz B, Meagher D. Symptoms of depression and delirium assessed serially in palliative care inpatients. Psychosomatics 2009; 50:506-14

Meagher D. Motor subtypes of delirium: past, present and future. International Review of Psychiatry 2009; 21;1:59-73.

MacLullich AMJ, Beaglehole A, Hall RJ, Meagher DJ. Delirium and long-term cognitive impairment. International Review of Psychiatry 2009: 21;1:30-42.

Ryan K, Leonard M, Guerin S, Donnelly S, Conroy M, Meagher D (2009). Validation of the confusion assessment method in the palliative care setting.Palliative Medicine 23:40-5.

Godfrey A, Conway R, Meagher D, O'Laighin G (2008). Direct measurement of human movement by accelerometry. Medical Engineering and Physics 30:1364-86.

Godfrey A, Conway R, Leonard M, Meagher D, O'Laighin GM (2008). Motion analysis in delirium: A wavelet based approach for sub classification. Conference Proceedings of the IEEE Engineering Medical and Biological Society. 8:3574-7.

Leonard M, Raju B, Conroy M, Donnelly S, Trzepacz PT, Saunders J, Meagher D(2008). Reversibility of delirium in terminally ill patients and predictors of mortality. Palliative Medicine 22:848-54.

Gupta N, de Jonghe J, Schieveld J, Leonard M, Meagher D (2008). Delirium phenomenology: what can we learn from the symptoms of delirium?. Journal of Psychosomatic Research 65:215-22.

O'Malley G, Leonard M, Meagher D, O'Keeffe ST (2008). The delirium experience: a review. Journal of Psychosomatic Research 65:223-8.

Meagher DJMoran MRaju BGibbons DDonnelly SSaunders JTrzepacz PT(2008) Motor symptoms in 100 patients with delirium versus control subjects: comparison of subtyping methods. Psychosomatics 49: 300-8

Meagher DJ, Moran M, Raju B, Gibbons D, Donnelly S, Saunders J, Trzepacz PT.(2008). A new data-based motor subtype schema for delirium. Journal of Neuropsychiatry and Clinical Neurosciences 20:185-193.

Meagher D, MacLullich AMJ, Laurila J (2008). Defining delirium for the International Classification of Diseases, 11th Revision. Journal of Psychosomatic Research 65: 207-214.

Meagher D, Leonard M (2008). The active management of delirium:  improving detection and treatment. Advances in Psychiatric Treatments 14: 292-301.

Meagher D, Pullela A, Meisinger M, Geaney N, O’Brien S (2008). A five-year follow up of an evidence-based prescribing intervention. Psychiatric Bulletin 27:266-70.

Leentjens A, Schieveld J, Leonard M, Lousberg R, Verhey F, Meagher D (2008). A comparison of the phenomenology of paediatric, adult, and geriatric delirium. Journal of Psychosomatic Medicine 64:219-23

Morris DW, Murphy K, Kenny N, Purcell SM, McGhee KA, Scwaiger S, Nangle JM, Donohoe G, Clarke S, Scully P, Quinn J, Meagher D, Baldwin P, Crumlish N, O’Callaghan E, Waddington JL, Gill M, Corvin AP (2008). Dysbindin (DTNBP1) and the biogenesis of lysosome-related organeeles complex 1 (BLOC-1): Main and epistatic gene effects are potential contributors to schizophrenia susceptibility. Biological Psychiatry 63:24-31.

​​​​​​​Yang MS, Morris DW, Donohoe G, Kenny E, O'Dushalaine CT, Schwaiger S, Nangle JM, Clarke S, Scully P, Quinn J, Meagher D, Baldwin P, Crumlish N, O'Callaghan E, Waddington JL, Gill M, Corvin A. (2008). Chitinase-3-Like 1 (CHI3L1) Gene and Schizophrenia: Genetic Association and a Potential Functional Mechanism. Biological Psychiatry 64:98-103.

​​​​​​​Hannan N, Hamzah Z, Akinpeloye HO, Meagher D (2007). Venlafaxine-mirtazapine combination in the treatment of persistent depressive illness. Journal of Psychopharmacology 21:161-4.

​​​​​​​Meagher DJ, Moran M, Raju B, Gibbons D, Donnelly S, Saunders J, Trzepacz PT(2007). Phenomenology of delirium. Assessment of 100 adult cases using standardised measures. British Journal of Psychiatry 190:135-41.

Leonard M, Godfrey A, Silberhorn M, Conroy M, Donnelly S, O Laighin G, Meagher D (2007). Motion analysis in delirium: a novel method of clarifying motoric subtypes. Neurocase 13:272-7.

​​​​​​​Corvin A, McGhee KA, Murphy K, Donohoe G, Nangle JM, Schwaiger S, Kenny N, Clarke S, Meagher D, Quinn J, Scully P, Baldwin P, Browne D, Walsh C, Waddington JL, Morris DW, Gill M. (2007). Evidence for association and epistasis at the DAOA/G30 and D-amino acid oxidase loci in an Irish schizophrenia sample. American Journal of Medical Genetics B Neuropsychiatric Genetics. 144:949-53.

​​​​​​​Meagher D, Hannan N, Leonard M (2006). Duloxetine-mirtazapine combination in depressive illness: The case for Limerick 'rocket fuel'. Irish Journal of Psychological Medicine 23:116-8.

Moran M, Raju B, Saunders J, Meagher D (2006). Achieving evidence-based prescribing practice in an adult Community Mental Health Service. Psychiatric Bulletin 30: 51-55

Raju B, Meagher D (2005). Patient-controlled benzodiazepine dose reduction in a community mental health service. Irish Journal of Psychological Medicine 22:42-45.

McGhee KA, Morris DW, Schwaiger S, Nangle JM, Donohoe G, Clarke S, Meagher D, Quinn J, Scully P, Waddington JL, Gill M, Corvin A (2005). Investigation of the apolipoprotein-L (APOL) gene family and schizophrenia using a novel DNA pooling strategy for public database SNPs. Schizophrenia Research 15:231-8.

Palmer J, Khalil M, Meagher D (2004). Inhalation induction with sevoflurane for electroconvulsive therapy: a case series. Psychiatric Bulletin 28: 326-328.

​​​​​​​Meagher DJ, Quinn JF, Bourke S, Linehan S, Murphy P, Kinsella A, Mullaney J, Waddington JL. (2004). Longitudinal assessment of psychopathological domains over late-stage schizophrenia in relation to duration of initially untreated psychosis: 3-year prospective study in a long-term inpatient population. Psychiatry Research 126:217-27.

Corvin AP, Morris DW, McGhee K, Schwaiger S, Scully P, Meagher D, Quinn J, Clair DS, Waddington JL, Gill M (2004). Confirmation and refinement of an at risk haplotype for schizophrenia suggests the EST cluster,Hs.97362 as a potential susceptibility gene at the neuroregulin-1 locus. Molecular Psychiatry 9:208-13.

Morris DW, Rodgers A, McGhee K, Schwaiger S, Scully P, Meagher D, Quinn J, Clair DS, Waddington JL, Gill M, Corvin AP (2004). Confirming RGS4 as a susceptibility gene for schizophrenia. American Journal of Medical Genetics 125B (1): 50-3.

Meagher D, Moran M (2003). Determinants of prescribing practice quality in a community mental health service. Psychiatric Bulletin 27:266-70.

Morris DW, McGhee K, Schwaiger S, Scully P, Meagher D, Quinn J, Clair DS, Waddington JL, Gill M, Corvin AP (2003). No evidence for association of the dysbindin gene [DTNBP1] with schizophrenia in an Irish population-based study. Schizophrenia Research 60:167-72.

​​​​​​​Meagher D, Quinn J, Mullaney J, Murphy P, Kinsella T, Waddington J (2001) Relationship of the factor structure of psychopathology in schizophrenia to the timing of initial intervention with antipsychotics. Schizophrenia Research 50:95-103.

​​​​​​​Meagher D (2001). Delirium: the role of psychiatry. Advances in Psychiatric Treatments 7:433-443.

Quinn J, Meagher D, Waddington J, Kinsella T, Mullaney J, Murphy P (2001). Vulnerability to involuntary movements over the lifetime trajectory of schizophrenia approaches 100%, in association with executive (frontal) dysfunction. Schizophrenia Research 49:79-87.

​​​​​​​Meagher D (2001). Delirium: optimising management practice. British Medical Journal  322:144-9.

​​​​​​​Meagher D, O'Hanlon D, O'Mahony E, Casey P, Trzepacz P (2000). The relationship between delirium subtypes and symptoms. Journal of Neuropsychiatry and Clinical Neurosciences 12:51-6.  

Meagher D, Trzepacz P. (2000). Motoric subtypes of delirium. Seminars in Clinical Neuropsychiatry 5:76-85.

Waddington JL, Lane A, Scully PJ, Meagher D, Quinn J, Larkin C, O’Callaghan E. (1999). Early cerebro-craniofacial dysmorphogenesis in schizophrenia: a  lifetime trajectory model from neurodevelopmental basis to neuroprogressive process. Journal of Psychiatric Research 33:477-89.

​​​​​​​Meagher D, O’Hanlon D, O’Mahony E, Casey P, Trzepacz P (1998). The relationship between etiology and phenomenologic profile in delirium. Journal of Geriatric Psychiatry and Neurology 11:146-9.

​​​​​​​Meagher D, Trzepacz P. (1998). Delirium phenomenology illuminates pathophysiology, management and course. Journal of Geriatric Psychiatry and Neurology 11:150-7.

O'Sullivan M, Meagher D (1998). Assaults on psychiatrists – a three year retrospective study. Irish Journal of Psychological Medicine 15:54-8.

​​​​​​​Meagher D, Fahy T, Nolan J (1998). Bilateral autoenucleation in a man with an explosive personality disorder. Irish Journal of Psychological Medicine 15:108-9.

​​​​​​​Meagher D, Murray D (1997). Depression. Supplement on women’s health. Lancet 349: SI:17-20.

​​​​​​​Meagher D,Quinn J, O'Mahony E, Morgan M, Byrne P (1997). Trainee’s attitudes towards their training and supervision. Irish Journal of Psychological Medicine 14:20-23.

​​​​​​​Meagher D, Collins A (1997). The use of aliases by patients attending the psychiatric services. Psychopathology 30: 324-7.

Quinn J, Meagher D (1997). Psychiatric trainees research experience and activities. Psychiatric Bulletin 21:367-9.

Gannon M, Meagher D,Watters L (1997). A follow-up of a new long-stay population in a health board area. Irish Journal of Psychological Medicine 14:24-5.

Byrne P, Meagher D (1997). Psychotherapy and trainees. Psychiatric Bulletin 21:707-711.

​​​​​​​Meagher D, O'Hanlon D, O'Mahony E, Casey P (1996). The use of environmental strategies and psychotropic medications in the management of delirium. British Journal of Psychiatry 168:512-5.

​​​​​​​Meagher D, Quinn J (1996). Practical issues in the management of delirium. Geriatric Medicine 26:52-4.

Casey P, Meagher D, Butler E (1996). Personality, functioning and recovery from major depressive disorder. Journal of Nervous and Mental Disease 184:240-5.

Sloan D, Browne S, Meagher D, Lane A, Larkin C, Casey P, Walsh N, O’Callaghan E (1996). Attitudes toward psychiatry among final year medical students. European Psychiatry 11: 407-11.

​​​​​​​Meagher D, Newman A, Fee M, Casey P (1995). The coverage of psychiatry in the Irish print media. Psychiatric Bulletin 19:642-4.

​​​​​​​Meagher D, Collins A (1995). Clinical characteristics of patients who present anonymously to psychiatric services. Irish Journal of Psychological Medicine 12:138-40.

Gannon M, Meagher D, Johnson J, Mirza H, Farren C (1995). A survey of new long-stay patients in a health board area. Psychiatric Services 46:394-8.

Williams H, Meagher D, Galligan P (1993). MDMA ("Ecstasy") - A case of possible drug-induced psychosis. Irish Journal of Medical Science 43-4.


​​​​​​​Meagher D. More attention, less confusion: time to lessen the burden of delirium. International Review of Psychiatry (2009).

Leentjens AF, Maclullich AM, Meagher DJ (2008). Delirium, Cinderella no more...? Journal of Psychosomatic Research 65:205-6.

Meagher DJ, Trzepacz PT (2007). Phenomenological distinctions needed in DSM-V: delirium, subsyndromal delirium and dementias. Journal of Neuropsychiatry and Clinical Neurosciences 19:468-70

Meagher D (2000). Is delirium losing its Cinderella status? Advances in Neurology and  Psychiatry 4:7-10.

Letters / Miscellaneous

​​​​​​​Meagher D. Delirium: 100 words. BJPsych (in press)

Meagher D. Delirium: The Mocking Mist. IMJ (in press)

Trzepacz P, Abell M, Maldonado J, Kean J, Meagher D. The revised Delirium Rating Scale (DRS-R98) administraion manual. University of Indiana press, 2010.

MacLullich AM, Meagher DJ, Laurila JV, Kalisvaart KJ. (2007). The European Delirium Association. Journal of Psychosomatic Research. 62:397-8.

Meagher D (2007). Delirium as a preventable factor for dementia. British Journal of Psychiatry (e-letter:

Meagher D (2001). Delirium episode as a sign of undetected dementia among community dwelling elderly subjects. Journal of Neurology Neurosurgery and Psychiatry 70:821-2.

Book Chapters

​​​​​​​Meagher D, Daly C, Adamis D. Delirium. In: Oxford Textbook of Neuropsychiatry (First Edition in press)

Maclullich A, Marcantonio E, Meagher D. Delirium. In: Oxford Textbook of Geriatric Medicine (3rd Edition in press)

Mulkerrin E, Cullen W, Meagher D. Applying Benzodiazepine Discontinuation Strategies in Everyday Practice. In: Benzodiazepine: Abuse and Therapeutic Uses, Pharmacology and Health Effect. Eds Soto AL, Reyes CF. Nova, New York, 2013.

​​​​​​​Meagher D, Cullen W. Early intervention for delirium. In: Early intervention for Psychiatry. Ed: Byrne P. Wiley, 2013.

Trzepacz P, Meagher D. Neuropsychiatric aspects of delirium. American Psychiatric Association Manual of Neuropsychiatry (1st Edition). Eds Yudofsky S, Hales R,  American Psychiatric Publishing press, Washington DC, 2012.

​​​​​​​Meagher D, Norton J, Trzepacz P. Management of the delirious patient. Principles and Practice of Geriatric Psychiatry. Agronin M, Maletta G, eds. Baltimore MD; Lippincott, Williams & Wilkins. 2nd Edition, 2011.

Trzepacz P, Meagher D, Leonard M. Delirium. Textbook of Psychosomatic Medicine (2nd Edition). Ed. JL Levenson. American Psychiatric Publishing press, Washington DC, 2010.

Trzepacz PT, Maldonado JR, Kean J, Abell M, Meagher DJ (2009). The Delirium Rating Scale- Revised-98 (DRS-R98) Administration Manual.  A guide to increase understanding of how to solicit delirium symptoms to administer the DRS-R98. Paula Trzepacz.®, Indianapolis, IN, USA.

​​​​​​​Meagher DJ, Trzepacz PT. Delirium. Oxford Textbook of Psychiatry, 2nd revised edition. Eds. Andreasen NC, Lopez-Ibor JJ, Gelder M. Oxford University Press, 2009.

Trzepacz P, Meagher D. Neuropsychiatric aspects of delirium (Chapter 15). American Psychiatric Association Textbook of Neuropsychiatry (5th Edition). Eds Yudofsky S, Hales R,  American Psychiatric Publishing press, Washington DC, 2007.

Trzepacz P, Meagher D, Wise M. Delirium. American Psychiatric Association Short Textbook of Neuropsychiatry (first edition). Eds Yudofsky S, Hales R,  American Psychiatric Publishing Press, Washington DC, 2005.

​​​​​​​Meagher D, Norton J, Trzepacz P. Management of the delirious patient. Principles and Practice of Geriatric Psychiatry. Agronin M, Maletta G, eds. Baltimore MD; Lippincott, Williams & Wilkins. 2005.

Trzepacz P, Meagher D. Delirium. Textbook of Psychosomatic Medicine (First Edition). Ed. JL Levenson. American Psychiatric Publishing press, Washington DC, 2004.

Trzepacz P, Meagher D, Wise M. Neuropsychiatric aspects of delirium. American Psychiatric Association Textbook of Neuropsychiatry (4th Edition). Eds Yudofsky S, Hales R,  American Psychiatric Publishing press, Washington DC, 2002.

Waddington JL, Scully PJ, Meagher DJ, Quinn JF (2000). Schizophrenia: developmental origins, course of illness and early intervention with novel antipsychotics.  In: Novel antipsychotics: facts and promises at the turn of the millennium.  Eds E Sachetti and PF Spano. Excerpta medica, Milan.

Editorial experience

I acted as guest editor for a special issue of the Journal of Psychosomatic Research focusing on the area of delirium research (published in Autumn 2008)

I was guest editor of a special issue of International Review of Psychiatry also addressing the area of delirium and related cognitive disorders (published in Spring 2009)

Editorial Board member of the World Journal of Psychiatry and Irish Journal of Psychological Medicine.