1
|
Keogh RJ, Harvey H, Brady C, Hassett E, Costelloe SJ, O'Sullivan MJ, Twomey M, O'Leary MJ, Cahill MR, O'Riordan A, Joyce CM, Moloney G, Flavin A, M Bambury R, Murray D, Bennett K, Mullooly M, O'Reilly S. Dealing with digital paralysis: Surviving a cyberattack in a National Cancer center. J Cancer Policy 2024; 39:100466. [PMID: 38176467 DOI: 10.1016/j.jcpo.2023.100466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Revised: 11/26/2023] [Accepted: 12/21/2023] [Indexed: 01/06/2024]
Abstract
INTRODUCTION Cyberattacks represent a growing threat for healthcare delivery globally. We assess the impact and implications of a cyberattack on a cancer center in Ireland. METHODS On May 14th 2021 (day 0) Cork University Hospital (CUH) Cancer Center was involved in the first national healthcare ransomware attack in Ireland. Contingency plans were only present in laboratory services who had previously experienced information technology (IT) failures. No hospital cyberattack emergency plan was in place. Departmental logs of activity for 120 days after the attack were reviewed and compared with historical activity records. Daily sample deficits (routine daily number of samples analyzed - number of samples analyzed during cyberattack) were calculated. Categorical variables are reported as median and range. Qualitative data were collected via reflective essays and interviews with key stakeholders from affected departments in CUH. RESULTS On day 0, all IT systems were shut down. Radiotherapy (RT) treatment and cancer surgeries stopped, outpatient activity fell by 50%. hematology, biochemistry and radiology capacity fell by 90% (daily sample deficit (DSD) 2700 samples), 75% (DSD 2250 samples), and 90% (100% mammography/PET scan) respectively. Histopathology reporting times doubled (7 to 15 days). Radiotherapy (RT) was interrupted for 113 patients in CUH. The median treatment gap duration was six days for category 1 patients and 10 for the remaining patients. Partner organizations paused all IT links with CUH. Outsourcing of radiology and radiotherapy commenced, alternative communication networks and national conference calls in RT and Clinical Trials were established. By day 28 Email communication was restored. By day 210 reporting and data storage backlogs were cleared and over 2000 computers were checked/replaced. CONCLUSION Cyberattacks have rapid, profound and protracted impacts. While laboratory and diagnostic deficits were readily quantified, the impact of disrupted/delayed care on patient outcomes is less readily quantifiable. Cyberawareness and cyberattack plans need to be embedded in healthcare. POLICY SUMMARY Cyberattacks pose significant challenges for healthcare systems, impacting patient care, clinical outcomes, and staff wellbeing. This study provides a comprehensive review of the impact of the Conti ransomware attack on cancer services in Cork University Hospital (CUH), the first cyberattack on a national health service. Our study highlights the widespread disruption caused by a cyberattack including shutdown of information technology (IT) services, marked reduction in outpatient activity, temporary cessation of essential services such as radiation therapy. We provide a framework for other institutions for mitigating the impact of a cyberattack, underscoring the need for a cyberpreparedness plan similar to those made for natural disasters and the profound legacy of a cyberattack on patient care.
Collapse
Affiliation(s)
- Rachel J Keogh
- Department of Medical Oncology, Cork University Hospital, Wilton, Cork, Ireland; Cancer Research @UCC, College of Medicine and Health, University College Cork, Ireland.
| | - Harry Harvey
- Department of Medical Oncology, Cork University Hospital, Wilton, Cork, Ireland
| | - Claire Brady
- Department of Medical Oncology, Cork University Hospital, Wilton, Cork, Ireland; Cancer Research @UCC, College of Medicine and Health, University College Cork, Ireland; Cancer Trials Cork, Cork University Hospital, Ireland
| | - Edel Hassett
- Cancer Research @UCC, College of Medicine and Health, University College Cork, Ireland; Cancer Trials Cork, Cork University Hospital, Ireland
| | - Seán J Costelloe
- Department of Clinical Biochemistry, Cork University Hospital, Wilton, Cork, Ireland
| | - Martin J O'Sullivan
- Department of Breast Surgery, Cork University Hospital, Ireland; University College Cork, College Road, University College Cork, Ireland
| | - Maria Twomey
- Department of Radiology, Cork University Hospital, Ireland
| | - Mary Jane O'Leary
- Palliative Medicine, Marymount University Hospital and Hospice, Cork, Ireland; Palliative Medicine, Cork University Hospital, Ireland
| | - Mary R Cahill
- Department of Haematology, Cork University Hospital, Ireland
| | | | - Caroline M Joyce
- Department of Clinical Biochemistry, Cork University Hospital, Wilton, Cork, Ireland; INFANT Centre, University College Cork, Ireland; Pregnancy Loss Research Group, Department of Obstetrics & Gynaecology, University College Cork, University College Cork, Ireland
| | - Ger Moloney
- Information and Communication Technology (ICT) Department, Cork University Hospital, Ireland
| | - Aileen Flavin
- Bon Secours Radiotherapy Cork in Partnership with UPMC Hillman Cancer Centre, Cork, Ireland
| | - Richard M Bambury
- Department of Medical Oncology, Cork University Hospital, Wilton, Cork, Ireland; Cancer Research @UCC, College of Medicine and Health, University College Cork, Ireland; Cancer Trials Cork, Cork University Hospital, Ireland; Cancer Research @UCC, University College Cork, Cork, Ireland
| | | | - Kathleen Bennett
- School of Population Health, RCSI University of Medicine and Health Sciences Dublin, Ireland
| | - Maeve Mullooly
- School of Population Health, RCSI University of Medicine and Health Sciences Dublin, Ireland
| | - Seamus O'Reilly
- Department of Medical Oncology, Cork University Hospital, Wilton, Cork, Ireland; Cancer Research @UCC, College of Medicine and Health, University College Cork, Ireland; Cancer Trials Cork, Cork University Hospital, Ireland; Cancer Research @UCC, University College Cork, Cork, Ireland
| |
Collapse
|
2
|
Teh JW, FitzGerald TJ, O'Riordan A, Watson A, Holian J. Erectile Dysfunction and End-Stage Kidney Disease. Ir Med J 2023; 116:827. [PMID: 37791630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
|
3
|
Carroll HK, Broderick A, McCarthy O, Bambury RM, Power DG, Collins DC, Connolly RM, Noonan SA, Collins D, Cunningham E, Kennedy M, O'Driscoll K, Nuzum D, Twomey K, O'Riordan A, O'Sullivan F, Roe C, Lowney AC, O'Leary MJ, O'Reilly S. Room to Improve: An Audit of In-Hospital End-of-Life Care for Oncology Patients in a Tertiary Cancer Centre in Ireland During the COVID-19 Pandemic. Omega (Westport) 2023:302228231196620. [PMID: 37670454 DOI: 10.1177/00302228231196620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/07/2023]
Abstract
The COVID-19 pandemic compounded isolation for patients through social distancing measures and staff shortages. We were concerned about the impact of COVID-19 on the quality of care provided at end-of-life in 2021 in a national cancer centre, and instigated the first ever review of the care of the dying. Quality of care was assessed retrospectively using a validated instrument developed by the United Kingdom's National Quality Board. Sixty-six patient deaths occurred in our cancer centre in 2021. The 'risk of dying' was documented in 65.2% of records. Palliative care services were involved in 77%, and pastoral care in 10.6%. What was important to the patient was documented in 24.2%. The 'quality-of-death' score was satisfactory for most but poor in 21.2%. Our study prompted change, including appointment of an end-of-life coordinator, development of a checklist to ensure comprehensive communication, expansion of the end-of-life committee to include junior doctors, and regular audit.
Collapse
Affiliation(s)
| | | | - Orfhlaith McCarthy
- Cork University Hospital, Cork, Ireland
- Marymount University Hospice, Cork, Ireland
| | - Richard M Bambury
- Cork University Hospital, Cork, Ireland
- Cancer Research, College of Medicine and Health University College, UCC, Cork, Ireland
| | - Derek G Power
- Cork University Hospital, Cork, Ireland
- Cancer Research, College of Medicine and Health University College, UCC, Cork, Ireland
| | - Dearbhaile C Collins
- Cork University Hospital, Cork, Ireland
- Cancer Research, College of Medicine and Health University College, UCC, Cork, Ireland
| | - Roisin M Connolly
- Cork University Hospital, Cork, Ireland
- Cancer Research, College of Medicine and Health University College, UCC, Cork, Ireland
| | - Sinead A Noonan
- Cork University Hospital, Cork, Ireland
- Cancer Research, College of Medicine and Health University College, UCC, Cork, Ireland
| | | | - Elaine Cunningham
- Cork University Hospital, Cork, Ireland
- Marymount University Hospice, Cork, Ireland
| | - Mary Kennedy
- Cork University Hospital, Cork, Ireland
- Marymount University Hospice, Cork, Ireland
| | | | - Daniel Nuzum
- Cork University Hospital, Cork, Ireland
- Marymount University Hospice, Cork, Ireland
| | | | | | | | | | - Aoife C Lowney
- Cork University Hospital, Cork, Ireland
- Marymount University Hospice, Cork, Ireland
| | - Mary Jane O'Leary
- Cork University Hospital, Cork, Ireland
- Marymount University Hospice, Cork, Ireland
| | - Seamus O'Reilly
- Cork University Hospital, Cork, Ireland
- Cancer Research, College of Medicine and Health University College, UCC, Cork, Ireland
| |
Collapse
|
4
|
Carroll H, Broderick A, McCarthy O, Kennedy M, Bambury R, Power D, Collins D, Connolly R, Noonan S, Collins D, Cunningham E, O'Driscoll K, Nuzum D, Twomey K, O'Riordan A, O'Sullivan F, Roe C, O'Leary M, Lowney A, O'Reilly S. 1292P A review of in-hospital end-of-life care (EOLC) for oncology patients during the COVID-19 pandemic. Ann Oncol 2022. [PMCID: PMC9472553 DOI: 10.1016/j.annonc.2022.07.1424] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
|
5
|
MEADE T, Côté J, Lyons L, Twomey P, O'Riordan A, Watson A, O'Regan J, Fitzgerald T, Malik F, Clince M, Teh J, Holian J, Murray P. POS-072 A PROSPECTIVE AUDIT OF THE CLINICAL IMPLEMENTATION OF URINE NEUTROPHIL GELATINASE-ASSOCIATED LIPOCALIN (uNGAL) AS A BIOMARKER OF ACUTE KIDNEY INJURY IN HOSPITALISED PATIENTS. Kidney Int Rep 2022. [DOI: 10.1016/j.ekir.2022.01.081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
|
6
|
Ryan C, Pugliese E, Shologu N, Gaspar D, Rooney P, Islam MN, O'Riordan A, Biggs M, Griffin M, Zeugolis D. A combined physicochemical approach towards human tenocyte phenotype maintenance. Mater Today Bio 2021; 12:100130. [PMID: 34632361 PMCID: PMC8488312 DOI: 10.1016/j.mtbio.2021.100130] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 08/27/2021] [Accepted: 08/28/2021] [Indexed: 02/08/2023] Open
Abstract
During in vitro culture, bereft of their optimal tissue context, tenocytes lose their phenotype and function. Considering that tenocytes in their native tissue milieu are exposed simultaneously to manifold signals, combination approaches (e.g. growth factor supplementation and mechanical stimulation) are continuously gaining pace to control cell fate during in vitro expansion, albeit with limited success due to the literally infinite number of possible permutations. In this work, we assessed the potential of scalable and potent physicochemical approaches that control cell fate (substrate stiffness, anisotropic surface topography, collagen type I coating) and enhance extracellular matrix deposition (macromolecular crowding) in maintaining human tenocyte phenotype in culture. Cell morphology was primarily responsive to surface topography. The tissue culture plastic induced the largest nuclei area, the lowest aspect ratio, and the highest focal adhesion kinase. Collagen type I coating increased cell number and metabolic activity. Cell viability was not affected by any of the variables assessed. Macromolecular crowding intensely enhanced and accelerated native extracellular matrix deposition, albeit not in an aligned fashion, even on the grooved substrates. Gene analysis at day 14 revealed that the 130 kPa grooved substrate without collagen type I coating and under macromolecular crowding conditions positively regulated human tenocyte phenotype. Collectively, this work illustrates the beneficial effects of combined physicochemical approaches in controlling cell fate during in vitro expansion.
Collapse
Affiliation(s)
- C.N.M. Ryan
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - E. Pugliese
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - N. Shologu
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - D. Gaspar
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - P. Rooney
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - Md N. Islam
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
- Regenerative Medicine Institute (REMEDI), School of Medicine, Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
- Discipline of Biochemistry, School of Natural Sciences, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - A. O'Riordan
- Tyndall National Institute, University College Cork (UCC), Cork, Ireland
| | - M.J. Biggs
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - M.D. Griffin
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
- Regenerative Medicine Institute (REMEDI), School of Medicine, Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - D.I. Zeugolis
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Charles Institute of Dermatology, Conway Institute of Biomolecular & Biomedical Research and School of Mechanical & Materials Engineering, University College Dublin (UCD), Dublin, Ireland
| |
Collapse
|
7
|
TEH J, Costelloe E, FitzGerald T, O'Riordan A, Watson A, Holian J. POS-813 ERECTILE DYSFUNCTION AND END-STAGE KIDNEY DISEASE; SINGLE CENTRE EXPERIENCE IN AN IRISH HOSPITAL. Kidney Int Rep 2021. [DOI: 10.1016/j.ekir.2021.03.846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
|
8
|
Patella B, Russo RR, O'Riordan A, Aiello G, Sunseri C, Inguanta R. Copper nanowire array as highly selective electrochemical sensor of nitrate ions in water. Talanta 2020; 221:121643. [PMID: 33076163 DOI: 10.1016/j.talanta.2020.121643] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 09/05/2020] [Accepted: 09/07/2020] [Indexed: 12/25/2022]
Abstract
Contamination of water with nitrate ions is a significant problem that affects many areas of the world. For this reason, European legislation has set the maximum permissible concentration of nitrates in drinking water at 44 mg/L. Thus, it is clear that a continuous monitoring of nitrate ions is of high technological interest but it must be rapid, easy to perform and directly performable in situ. In this work we have developed a nanostructured sensor based on array of copper nanowires obtained with the simple method of galvanic deposition. The nanostructured sensors have a very short response time with a detection limit less than 10 μM. Different interfering species were tested finding a negligible effect except for the chloride ions. However, this problem has been solved by removing chloride ions from the water through a simple precipitation of chloride compounds with low solubility. Nanostructured sensors were also used to analyze real water samples (rain, river and drinking water). In the case of drinking water, we have measured a concentration of nitrate ions very close to the that measured by conventional laboratory techniques.
Collapse
Affiliation(s)
- B Patella
- Laboratorio di Chimica Fisica Applicata, Dipartimento di Ingegneria, Università of Palermo, Viale delle Scienze, Palermo, Italy
| | - R R Russo
- Laboratorio di Chimica Fisica Applicata, Dipartimento di Ingegneria, Università of Palermo, Viale delle Scienze, Palermo, Italy
| | - A O'Riordan
- Nanotechnology Group, Tyndall National Institute, University College Cork, Dyke Parade, Cork, Ireland
| | - G Aiello
- Laboratorio di Chimica Fisica Applicata, Dipartimento di Ingegneria, Università of Palermo, Viale delle Scienze, Palermo, Italy
| | - C Sunseri
- Laboratorio di Chimica Fisica Applicata, Dipartimento di Ingegneria, Università of Palermo, Viale delle Scienze, Palermo, Italy
| | - R Inguanta
- Laboratorio di Chimica Fisica Applicata, Dipartimento di Ingegneria, Università of Palermo, Viale delle Scienze, Palermo, Italy.
| |
Collapse
|
9
|
O'Riordan A, Cleary J, Cunney R, Nicholson AJ. Pertussis in young infants: clinical presentation, course and prevention. Ir Med J 2014; 107:217-219. [PMID: 25226721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Pertussis is a highly contagious disease caused by the Gram negative aerobic coccobacillus, Bordetella pertussis. It may present with severe symptoms and complications in infants and can pose a diagnostic challenge. This is a vaccine preventable illness covered by the Irish Childhood Immunisation Schedule. In 2011, a retrospective review was conducted of the records of infants, under six months, with a confirmed diagnosis of pertussis, presenting to Temple Street Children's University Hospital (TSCUH). A summery of notifications of pertussis nationally, from 2001 to 2012, was also examined as part of the study. This found that the rate of reported cases of pertussis has been increasing in Ireland. This national increase corresponds with a rising number of cases identified at TSCUH. Patients commonly presented severely ill with cyanosis and apnoea, on a background of prolonged cough. We found that pertussis was diagnosed rapidly in most cases however in all cases there was a delay to commencement of appropriate macrolide therapy.
Collapse
|
10
|
Lovera P, Jones D, O'Riordan A. Elliptical nanohole array in thin gold film as micrometer sized optical filter set for fluorescent-labelled assays. ACTA ACUST UNITED AC 2011. [DOI: 10.1088/1742-6596/307/1/012006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
11
|
|
12
|
|
13
|
O'Riordan A, Iacopino D, Lovera P, Floyd L, Reynolds K, Redmond G. Dielectrophoretic self-assembly of polarized light emitting poly(9,9-dioctylfluorene) nanofibre arrays. Nanotechnology 2011; 22:105602. [PMID: 21289411 DOI: 10.1088/0957-4484/22/10/105602] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Conjugated polymer based 1D nanostructures are attractive building blocks for future opto-electronic nanoscale devices and systems. However, a critical challenge remains the lack of manipulation methods that enable controlled and reliable positioning and orientation of organic nanostructures in a fast, reliable and scalable manner. To address this challenge, we explore dielectrophoretic assembly of discrete poly(9,9-dioctylfluorene) nanofibres and demonstrate site selective assembly and orientation of these fibres. Nanofibre arrays were assembled preferentially at receptor electrode edges, being aligned parallel to the applied electric field with a high order parameter fit (∼ 0.9) and exhibiting an emission dichroic ratio of ∼ 4.0. As such, the dielectrophoretic method represents a fast, reliable and scalable self-assembly approach for manipulation of 1D organic nanostructures. The ability to fabricate nanofibre arrays in this manner could be potentially important for exploration and development of future nanoscale opto-electronic devices and systems.
Collapse
Affiliation(s)
- A O'Riordan
- Tyndall National Institute-University College Cork, Lee Maltings, Cork, Ireland.
| | | | | | | | | | | |
Collapse
|
14
|
Abstract
Acute renal failure (ARF) can complicate up to 60% of orthotopic liver transplants (OLT). The RIFLE criteria were developed to provide a consensus definition for acute renal disease in critically ill patients. Using the RIFLE criteria, we aimed to determine the incidence and risk factors for ARF and acute renal injury (ARI), and to evaluate the link with the outcomes, patient survival and length of hospital stay. Three hundred patients, who received 359 OLTs, were retrospectively analyzed. ARI and ARF occurred post 11.1 and 25.7% of OLTs, respectively. By multivariate analysis, ARI was associated with pre-OLT hypertension and alcoholic liver disease and ARF with higher pre-OLT creatinine, inotrope and aminoglycoside use. ARF, but not ARI, had an impact on 30-day and 1-year patient survival and longer length of hospital stay. ARI and ARF, as defined by the RIFLE criteria, are common complications of OLT, with distinct risk factors and ARF has serious clinical consequences. The development of a consensus definition is a welcome advance, however these criteria do need to be validated in large studies in a wide variety of patient populations.
Collapse
Affiliation(s)
- A O'Riordan
- Department of Nephrology, St Vincent's University Hospital, Elm Park, Dublin 4, Ireland.
| | | | | | | | | | | |
Collapse
|
15
|
Sheil B, MacSharry J, O'Callaghan L, O'Riordan A, Waters A, Morgan J, Collins JK, O'Mahony L, Shanahan F. Role of interleukin (IL-10) in probiotic-mediated immune modulation: an assessment in wild-type and IL-10 knock-out mice. Clin Exp Immunol 2006; 144:273-80. [PMID: 16634801 PMCID: PMC1809667 DOI: 10.1111/j.1365-2249.2006.03051.x] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
While the impact of Bifidobacterium infantis 35624 and other probiotics on cytokines has been shown in established colitis, the effects of B. infantis consumption in pre-inflammation of interleukin (IL)-10 knock-out (KO) mice and on the wild-type (WT) C57Bl/6 mice have not been well demonstrated. The objective of this study was to examine cytokine responses in mucosal and systemic lymphoid compartments of IL-10 KO mice early in disease and to compare with control WT mice. Mice were fed B. infantis or placebo for 5 weeks and culled prior to the onset of chronic intestinal inflammation (12-14 weeks). The spleen, Peyer's patches and intestinal mucosa were removed and stimulated with various bacterial stimuli. Cytokine levels were measured by enzyme-linked immunosorbent assay. While basal intestinal and systemic cytokine profiles of WT and IL-10 KO mice were similar, transforming growth factor (TGF)-beta was reduced in the spleen of IL-10 KO mice. Following probiotic consumption, interferon (IFN)-gamma was reduced in the Peyer's patch of both WT and IL-10 KO mice. Alterations in IFN-gamma in the Peyer's patches of WT mice (enhancement) versus IL-10 KO (reduction) were observed following in vitro stimulation with salmonella. Differential IL-12p40, CCL2 and CCL5 responses were also observed in IL-10 KO mice and WT mice. The cytokine profile of IL-10 KO mice in early disease was similar to that of WT mice. The most pronounced changes occurred in the Peyer's patch of IL-10 KO mice, suggesting a probiotic mechanism of action independent of IL-10. This study provides a rationale for the use of B. infantis 35624 for the treatment of gastrointestinal inflammation.
Collapse
Affiliation(s)
- B Sheil
- Department of Medicine and Alimentary Pharmabiotic Centre, University College Cork, Cork, Ireland
| | | | | | | | | | | | | | | | | |
Collapse
|
16
|
O'Riordan A, Ong C, Pavlakis N, Veitch P. Blue fingers. Intern Med J 2003; 33:620-1. [PMID: 14656243 DOI: 10.1111/j.1445-5994.2003.00489.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
17
|
Abstract
BACKGROUND Peritonitis resulting from peritoneal dialysis (PD) remains a serious cause of morbidity and even mortality among dialysis patients. AIM To highlight the danger of antibiotic resistance in patients on dialysis who have received multiple courses of antibiotics. METHODS Two cases are reported in which the patients developed peritonitis resistant to vancomycin. CONCLUSIONS Multi-drug resistance is a growing danger. It is imperative to use the most appropriate antibiotics in the proper dosage. If infections persist, early removal of the catheters is essential. The use of antibiotics in PD patients needs to be limited. Sensitivity patterns of the cultured organisms must be monitored regularly as the lack of vigilance may help accelerate the development of the so-called 'super bug' resistant to all antibiotics.
Collapse
Affiliation(s)
- A O'Riordan
- Department of Nephrology and Transplantation, Beaumont Hospital, Dublin, Ireland
| | | | | | | |
Collapse
|
18
|
Little MA, O'Riordan A, Lucey B, Farrell M, Lee M, Conlon PJ, Walshe JJ. A prospective study of complications associated with cuffed, tunnelled haemodialysis catheters. Nephrol Dial Transplant 2001; 16:2194-200. [PMID: 11682667 DOI: 10.1093/ndt/16.11.2194] [Citation(s) in RCA: 100] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Despite the US Dialysis Outcome Quality Initiative )DOQI( guidelines, for various reasons, increasing numbers of end-stage renal disease patients are becoming dependent on cuffed haemodialysis catheters (HCs) for chronic haemodialysis access. Their use is complicated by frequent failure due to thrombosis and catheter-related sepsis. In our unit, all HCs are put in place by the radiology department. METHODS In a prospective study we looked at the outcome of all HCs over a three-year period, during which time 573 consecutive HCs were placed in 336 patients. Each line was followed individually until it was removed or until the end of the study. RESULTS In a survival analysis of those HCs removed following HC failure, HC half-life was 312 days and one-year HC survival was 47.5%. The most frequent indications for HC removal were non-function (36.6%), clinical suspicion of line sepsis (16.4%) and patient death (14.4%). Using a Cox proportional hazards model, catheter number in a given patient and the presence of diabetes mellitus were found to be independent predictors of HC failure. The total incidence of HC-related sepsis was 1.3 episodes/1000 catheter days. The probability of developing bacteraemic HC-related sepsis was 27.5% at one year. CONCLUSIONS Less than half of the HCs were removed electively because of availability of a more permanent mode of renal replacement, thereby illustrating the level of dependence that has developed on them as permanent access. Consequently, their limitations (infection and malfunction) are placing an ever increasing burden on the healthcare services.
Collapse
Affiliation(s)
- M A Little
- Department of Nephrology and Transplantation, Beaumont Hospital, Dublin, Ireland
| | | | | | | | | | | | | |
Collapse
|
19
|
|
20
|
O'Riordan A, McHale ML, Gallagher J, McHale AP. Chitinase production following co-immobilization ofMicromonospora chalcae with chitin in calcium alginate. Biotechnol Lett 1989. [DOI: 10.1007/bf01044107] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|