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Steer⁎ C, Chia P, O'Connor J, Underhill C, Donnelly J, Myers R, Eek R, Clarke K, Packer C. Utilising existing community-based supportive care and aged care resources for older patients with cancer — Updated results of the Care Coordination in the Older Adult with Cancer (CCOAC) project. J Geriatr Oncol 2012. [DOI: 10.1016/j.jgo.2012.10.126] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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O'Connor J, Rochford M, O'Connor G, Fanning N. Pharmacological diagnosis of Horner's syndrome in the Emergency Department. Arch Emerg Med 2011; 28:729. [DOI: 10.1136/emj.2010.096420] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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O'Connor J, Goldstein R. Stereotactic body radiation therapy in the treatment of unresectable intrahepatic cholangiocarcinoma. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.4_suppl.335] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
335 Background: Unresectable intrahepatic cholangiocarcinoma has a poor prognosis with less than 5% of patients surviving 5 years. We review our experience with stereotactic body radiation therapy (SBRT) in the treatment of unresectable intrahepatic cholangiocarcinoma and evaluate acute toxicity and local control. Methods: From November 2005 until August 2010, 12 patients with unresectable intrahepatic cholangiocarcinoma were treated with SBRT. All patients were evaluated by a liver surgeon and were deemed unresectable prior to radiosurgery. The median tumor size was 4.3 cm (range 1.9–9.3 cm). All tumors were located in the right hepatic lobe. Three patients had received prior radiation therapy and SBRT was given as a boost with a median dose of 24 Gy in three fractions. Nine patients received SBRT as the sole local modality to a median dose of 51 Gy (range 30–55 Gy) in three fractions on consecutive days. Local control was determined by follow-up imaging with MRI. The median follow up is 12 months. Toxicity was assessed using Common Toxicity Criteria (CTC) guidelines version 3.0. Results: Overall, only 3 of 12 (25%) patients experienced acute toxicity. Three patients had abdominal discomfort and one patient had nausea. All toxicities were grade 1. Ten of 12 (83%) patients received chemotherapy. Four patients received chemotherapy before SBRT and five patients received chemotherapy after. One patient received chemotherapy before and after SBRT. Overall local control is 75% for eight patients with follow-up imaging. Two of eight (25%) patients had a complete response. Four of eight (67%) patients had a partial response or stable disease. One patient had a local recurrence 13 months after receiving SBRT (51 Gy in three fractions) and was retreated with SBRT (28 Gy in three fractions) with no acute toxicity. There was no difference in outcome whether SBRT was given before or after chemotherapy. Conclusions: Stereotactic body radiation therapy given sequentially with chemotherapy is well tolerated with few side effects in the treatment of unresectable intrahepatic cholangiocarcinoma and early local control is promising. No significant financial relationships to disclose.
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O'Connor J, Kiernan TJ. Branch retinal artery occlusion following elective percutaneous coronary intervention. Heart 2011; 97:640. [DOI: 10.1136/hrt.2010.219451] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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Matheson L, O'Connor J, Cartwright T, Blunt C, Clow A, Lee C, Elkin S. P44 COPD Patients derived benefits from attending PR: 'This has given me my life back'. Thorax 2010. [DOI: 10.1136/thx.2010.150961.44] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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O'Connor J, Peterson MS, Parasurman R. The Effect of Extensive Repeated Viewing on Visual Recognition. J Vis 2010. [DOI: 10.1167/10.7.288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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O'Connor J, Adamski J. The Diagnosis and Treatment of Non-Cardiac Thoracic Trauma. J ROY ARMY MED CORPS 2010; 156:5-14. [DOI: 10.1136/jramc-156-01-02] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Zamora V, Cabanne A, Salanova R, Bestani C, Domenichini E, Marmissolle F, Giacomi N, O'Connor J, Méndez G, Roca E. Immunohistochemical expression of somatostatin receptors in digestive endocrine tumours. Dig Liver Dis 2010; 42:220-5. [PMID: 19819769 DOI: 10.1016/j.dld.2009.07.018] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2009] [Revised: 06/30/2009] [Accepted: 07/28/2009] [Indexed: 12/11/2022]
Abstract
INTRODUCTION Somatostatin receptors are expressed in a large number of human tumours. The somatostatin receptors types 1-5 expression in a series including 100 gastro-entero-pancreatic endocrine tumours were analysed. METHODS From a prospectively built database of patients with gastro-entero-pancreatic endocrine tumours referred from three institutions, 100 cases with clinical and pathological data were selected. Somatostatin receptors expression by immunohistochemistry with somatostatin receptor types 1-5 antibodies in tissue paraffin sections were studied and correlated with the histological diagnosis according to the WHO classification, location and functional status. RESULTS Of the 100 cases, 67 were gastrointestinal tumours, 25 pancreatic and 8 liver metastasis of unknown origin. Thirty-one of them were functioning tumours: 2 insulinomas, 5 gastrinomas, 1 glucagonoma and 23 carcinoids. Somatostatin receptors expression was observed in 94 tumours. The six negative cases were all non-functioning tumours. Somatostatin receptors 2a and 5 were highly expressed (86 and 62%, respectively), and surprisingly found even in poorly differentiated endocrine carcinomas. Somatostatin receptors expression was less frequent in pancreatic than in gastrointestinal tumours. Well-differentiated neoplasms had a higher density of somatostatin receptors. Only SSTR2a showed membrane staining. CONCLUSIONS Immunohistochemistry revealed that somatostatin receptors were highly expressed in both primary and metastatic gastro-entero-pancreatic endocrine tumours with heterogeneous staining distribution. It proved to be a reliable technique even in small tumour samples.
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Boyle F, Morris D, O'Connor J, Delappe N, Ward J, Cormican M. First report of extended-spectrum-beta-lactamase-producing Salmonella enterica serovar Kentucky isolated from poultry in Ireland. Antimicrob Agents Chemother 2010; 54:551-3. [PMID: 19884382 PMCID: PMC2798478 DOI: 10.1128/aac.00916-09] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2009] [Revised: 08/28/2009] [Accepted: 10/20/2009] [Indexed: 11/20/2022] Open
Abstract
Therapy of invasive human salmonellosis is complicated by increasing antimicrobial resistance. Food animals are the principal source of infection with nontyphoid Salmonella. We report the emergence of broad-spectrum-cephalosporin resistance in Salmonella enterica serovar Kentucky in poultry in Ireland.
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Wilson DP, Heymer KJ, Anderson J, O'Connor J, Harcourt C, Donovan B. Sex workers can be screened too often: a cost-effectiveness analysis in Victoria, Australia. Sex Transm Infect 2009; 86:117-25. [DOI: 10.1136/sti.2009.036673] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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O'Connor J, Cleverly DR. Bile Salt Stimulated Human Milk Lipase Catalyzed Ester Hydrolysis in Detergentless Microemulsion Media. BIOCATAL BIOTRANSFOR 2009. [DOI: 10.3109/10242429508998162] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Lyons F, Milner M, Davey C, Bosio P, O'Connor J, Dorman A, McKenna P. Substance abuse in an Irish antenatal population. J OBSTET GYNAECOL 2009; 19:609-11. [PMID: 15512412 DOI: 10.1080/01443619963833] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Substance abuse is prevalent in Ireland. The potential sequelae for abuser and carer are many. In pregnancy there are further problems. We assessed the prevalence of substance abuse in our antenatal population using an anonymous questionnaire and urine toxicology screening. We examined 522 women and 18 (3.4%) had positive urine toxicology. The anonymous questionnaire failed to identify all of these women. No typical patient profile emerged when the demographic features were studied. We believe that our study has underestimated the true prevalence of substance abuse in our antenatal population and many factors may have contributed to this. Substance abuse in pregnancy remains a difficult problem to quantify and for the future the main focus of attention must be on education and prevention.
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O'Connor J, More SJ, Griffin JM, O'Leary E. Modelling the demographics of the Irish cattle population. Prev Vet Med 2009; 89:249-54. [PMID: 19327855 DOI: 10.1016/j.prevetmed.2009.02.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2008] [Revised: 10/14/2008] [Accepted: 02/15/2009] [Indexed: 12/01/2022]
Abstract
In recent years, national authorities have committed very substantial resources to the creation and maintenance of databases capable of recording important animal event data, such as births, deaths and movements. This has primarily been driven by the need to ensure the quality and safety of animal products. However, it can also be used to assist policy makers in decision making. Despite the abundance of animal event data, as yet there is little published information about the use of these data to better understand the demography of cattle populations. This study reports the development of, and outputs from, a demographic model using data routinely collected from the Irish cattle population. The demographic model was based on a series of life tables detailing age-specific probabilities of survival up to a maximum of 17 years. These outputs were used to determine characteristics of the Irish cattle population, including estimated mortality rates, life expectancies and age profiles, and estimated cattle numbers by age and date. Separate life tables were developed for each of the 204 monthly birth cohorts born between January 1989 and December 2005. Within the Irish cattle population, the peak estimated mortality rate occurs at 29-33 months. The estimated life expectancy at birth of cattle in Ireland was 42 months. When the survival rates for all the cohorts within a population are calculated, then it is possible to use these rates as a model for determining future population size and answering cohort specific queries.
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De Lappe N, Doran G, O'Connor J, O'Hare C, Cormican M. Characterization of bacteriophages used in the Salmonella enterica serovar Enteritidis phage-typing scheme. J Med Microbiol 2009; 58:86-93. [DOI: 10.1099/jmm.0.000034-0] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The 16 Salmonella enterica serovar Enteritidis (S. Enteritidis) typing phages (SETPs) used in the Laboratory of Enteric Pathogens (Health Protection Agency, London, UK) phage-typing scheme have not previously been characterized in detail. We have examined the adsorption properties of the phages with respect to a number of S. enterica serovars and defined phage morphology with electron microscopy. PFGE was used to estimate overall genome size and banding patterns generated by electrophoresis following restriction endonuclease digestion of the genome with HindIII were compared. PCR amplification and sequencing of selected genes was performed. The 16 phages comprise three morphotypes, Podoviridae (SETP1, 8, 10, 14, 15 and 16), Siphoviridae (SETP3, 5, 7, 11, 12 and 13) and Myoviridae (SETP2, 4, 6 and 9). All Podoviridae and Siphoviridae, but not Myoviridae, adsorbed to the O12 lipopolysaccharide antigen of Salmonella serogroups B (4,12) and D1 (9,12). The genome sizes for the Podoviridae and Siphoviridae (PFGE-A) were approximately 42 kb. The genome size for Myoviridae SETP2, 4 and 9 was 36.5 kb, and for myovirus SETP6 was 27 kb. HindIII digestion of phage DNA produced 9 distinct patterns of 8 to 11 bands. Relationships between phages based on digest patterns were consistent with those defined by morphology. The Podoviridae had homologues of several P22 genes while the Siphoviridae had homologues of several genes present in the sequenced siphovirus SETP3 (EF177456). This study represents an initial step in characterizing the molecular basis that underlies the widely used S. Enteritidis typing scheme.
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Chapman CS, Akhtar N, Campbell S, Miles K, O'Connor J, Mitchell VE. The use of D-Dimer assay by enzyme immunoassay and latex agglutination techniques in the diagnosis of deep vein thrombosis. CLINICAL AND LABORATORY HAEMATOLOGY 2008; 12:37-42. [PMID: 2188775 DOI: 10.1111/j.1365-2257.1990.tb01108.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The blood of 107 patients undergoing venography for suspected deep vein thrombosis (DVT) was tested for D-Dimers using enzyme immunoassay (EIA) and two latex agglutination techniques. D-Dimer levels by EIA were raised in 88% of patients with proven DVT. However, levels detected with the two agglutination tests were much less sensitive, being raised in only 43% patients with DVT. A more sensitive rapid screening test is needed to provide a useful non-invasive test for the exclusion of DVT.
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Costa F, Domenichini E, Garavito G, Medrano R, Mendez G, O'Connor J, Rojas W, Torres S, Younes RN, Delle Fave G, Oberg K. Management of neuroendocrine tumors: a meeting of experts from Latin America. Neuroendocrinology 2008; 88:235-42. [PMID: 18663282 DOI: 10.1159/000149356] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2008] [Accepted: 05/09/2008] [Indexed: 11/19/2022]
Abstract
A panel of experts from Latin America convened in Brazil, in May of 2007, for consensus recommendations regarding the management of neuroendocrine tumors (NETs) of the gastrointestinal tract and pancreas. The recently introduced World Health Organization classification of NETs represents a step forward, but the former classification of carcinoids into foregut, midgut and hindgut is still likely to be useful in the near future. Macroscopic description of the tumor should be followed by light microscopic examination and immunohistochemical staining, whereas other techniques might not be widely available in Latin America. Surgery remains the mainstay of treatment for patients with potentially curable tumors, and adequate selection is paramount in order to optimize treatment results. Regarding systemic therapy, patients with well-differentiated tumors or islet-cell carcinomas may be categorized as having indolent disease, while patients with poorly differentiated, anaplastic, and small-cell carcinomas, or with atypical carcinoids, may be approached initially as having aggressive disease. Somatostatin analogues play a cytostatic role in indolent tumors, and chemotherapy may play a role against other, more aggressive NETs. Obviously, there is an urgent need for novel therapies that are effective against NETs.
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O'Connor J, Seeto C, Saini B, Bosnic-Anticevich S, Krass I, Armour C, Smith L. Healthcare professional versus patient goal setting in intermittent allergic rhinitis. PATIENT EDUCATION AND COUNSELING 2008; 70:111-117. [PMID: 17997261 DOI: 10.1016/j.pec.2007.09.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2007] [Revised: 09/03/2007] [Accepted: 09/16/2007] [Indexed: 05/25/2023]
Abstract
OBJECTIVE To examine the impact of healthcare professional versus patient goal setting for the self-management of intermittent allergic rhinitis (AR) on symptom severity and quality of life. METHODS This was a 6 week, parallel group study. Group A participants, with pharmacist facilitation, nominated personally relevant goals and strategies relating to their AR. Group B participants had their goals and strategies set by the pharmacist. The main outcome measures used included perceived symptom severity and quality of life. In addition, goals and strategies data from participants of both groups were collected and analysed. RESULTS Both groups demonstrated significant improvements in symptom severity and quality of life scores however Group B symptom severity scores improved more. Group B set a greater number of goals and strategies which were better structured and more task specific. CONCLUSION This is the first study to investigate the impact of goal setting on patient behaviour in a chronic yet episodic illness. Our results suggest that self-management goals set by the healthcare professional which are clinically indicated but tailored to the patient's nominated symptoms yields better outcomes than goals nominated by the patient. PRACTICE IMPLICATIONS A brief, structured intervention, tailored to patient symptoms, can enhance self-management of intermittent allergic rhinitis.
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Morris D, DeLappe N, Doran G, O'Connor J, Cormican M. Typing of salmonella typhi isolates from Ireland. J Infect 2007. [DOI: 10.1016/j.jinf.2007.04.071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Morris D, O'Connor J, DeLappe N, Doran G, Cormican M. Plasmid-mediated quinolone resistance in non-typhi serotypes of salmonella enterica in Ireland, 2001-2005. J Infect 2007. [DOI: 10.1016/j.jinf.2007.04.072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Schiff ND, Giacino JT, Kalmar K, Victor JD, Baker K, Gerber M, Fritz B, Eisenberg B, Biondi T, O'Connor J, Kobylarz EJ, Farris S, Machado A, McCagg C, Plum F, Fins JJ, Rezai AR. Behavioural improvements with thalamic stimulation after severe traumatic brain injury. Nature 2007; 448:600-3. [PMID: 17671503 DOI: 10.1038/nature06041] [Citation(s) in RCA: 702] [Impact Index Per Article: 41.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2007] [Accepted: 06/22/2007] [Indexed: 11/09/2022]
Abstract
Widespread loss of cerebral connectivity is assumed to underlie the failure of brain mechanisms that support communication and goal-directed behaviour following severe traumatic brain injury. Disorders of consciousness that persist for longer than 12 months after severe traumatic brain injury are generally considered to be immutable; no treatment has been shown to accelerate recovery or improve functional outcome in such cases. Recent studies have shown unexpected preservation of large-scale cerebral networks in patients in the minimally conscious state (MCS), a condition that is characterized by intermittent evidence of awareness of self or the environment. These findings indicate that there might be residual functional capacity in some patients that could be supported by therapeutic interventions. We hypothesize that further recovery in some patients in the MCS is limited by chronic underactivation of potentially recruitable large-scale networks. Here, in a 6-month double-blind alternating crossover study, we show that bilateral deep brain electrical stimulation (DBS) of the central thalamus modulates behavioural responsiveness in a patient who remained in MCS for 6 yr following traumatic brain injury before the intervention. The frequency of specific cognitively mediated behaviours (primary outcome measures) and functional limb control and oral feeding (secondary outcome measures) increased during periods in which DBS was on as compared with periods in which it was off. Logistic regression modelling shows a statistical linkage between the observed functional improvements and recent stimulation history. We interpret the DBS effects as compensating for a loss of arousal regulation that is normally controlled by the frontal lobe in the intact brain. These findings provide evidence that DBS can promote significant late functional recovery from severe traumatic brain injury. Our observations, years after the injury occurred, challenge the existing practice of early treatment discontinuation for patients with only inconsistent interactive behaviours and motivate further research to develop therapeutic interventions.
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Morris D, DeLappe N, Doran G, O'Connor J, Corbett-Feeney G, Cormican M. O499 Identification of CTX-M-15 extended-spectrum β-lactamase in a clinical isolate of Shigella sonnei in Ireland. Int J Antimicrob Agents 2007. [DOI: 10.1016/s0924-8579(07)70343-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Doran G, DeLappe N, O'Connor J, Morris D, Cormican M, Lindstedt B. P1859 Variable number of tandem repeats of S. typhimurium in Ireland. Int J Antimicrob Agents 2007. [DOI: 10.1016/s0924-8579(07)71698-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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