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Lim C, Sundkvist T, Nair P, Godward S, Pereira A, Brown G, Bracebridge S. Avian Influenza (H5N1) Outbreak in Suffolk - The Rapid Setup of a Database. Int J Infect Dis 2008. [DOI: 10.1016/j.ijid.2008.05.321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Munasinghe S, Ahmed A, Lim C, Rodrigues B, Sundkvist T, Nair P. Knowledge, Risk perception, Poultry workers and Avian influenza. Int J Infect Dis 2008. [DOI: 10.1016/j.ijid.2008.05.319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Beddy D, Hyland JMP, Winter DC, Lim C, White A, Moriarty M, Armstrong J, Fennelly D, Gibbons D, Sheahan K. A simplified tumor regression grade correlates with survival in locally advanced rectal carcinoma treated with neoadjuvant chemoradiotherapy. Ann Surg Oncol 2008; 15:3471-7. [PMID: 18846402 DOI: 10.1245/s10434-008-0149-y] [Citation(s) in RCA: 118] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2008] [Revised: 08/19/2008] [Accepted: 08/20/2008] [Indexed: 02/06/2023]
Abstract
BACKGROUND Locally advanced rectal cancer is frequently treated with neoadjuvant chemoradiotherapy to reduce local recurrence and possibly improve survival. The tumor response to chemoradiotherapy is variable and may influence the prognosis after surgery. This study assessed tumor regression and its influence on survival in patients with rectal cancer treated with chemoradiotherapy followed by curative surgery. METHODS One hundred twenty-six patients with locally advanced rectal cancer (T3/T4 or N1/N2) were treated with chemoradiotherapy followed by total mesorectal excision. Patients received long-course radiotherapy (50 Gy in 25 fractions) in combination with 5-flourouracil over 5 weeks. By means of a standardized approach, tumor regression was graded in the resection specimen using a 3-point system related to tumor regression grade (TRG): complete or near-complete response (TRG1), partial response (TRG2), or no response (TRG3). RESULTS The 5-year disease-free survival was 72% (median follow-up 37 months), and 7% of patients had local recurrence. Chemoradiotherapy produced downstaging in 60% of patients; 21% of patients experienced TRG1. TRG1 correlated with a pathological T0/1 or N0 status. Five-year disease-free survival after chemoradiotherapy and surgery was significantly better in TRG1 patients (100%) compared with TRG2 (71%) and TRG3 (66%) (P = .01). CONCLUSION Tumor regression grade measured on a 3-point system predicts outcome after chemoradiotherapy and surgery for locally advanced rectal cancer.
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Lim C, Macaigne G, Boivin JF, Auriaul ML, Deplus R. Colite lymphocytaire associée à la prise de Stalevo®. ACTA ACUST UNITED AC 2008; 32:698-9. [DOI: 10.1016/j.gcb.2008.02.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2007] [Revised: 02/07/2008] [Accepted: 02/08/2008] [Indexed: 10/22/2022]
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Chen WF, Low KH, Lim C, Edery I. Thermosensitive splicing of a clock gene and seasonal adaptation. COLD SPRING HARBOR SYMPOSIA ON QUANTITATIVE BIOLOGY 2008; 72:599-606. [PMID: 18419319 DOI: 10.1101/sqb.2007.72.021] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Similar to many diurnal animals, the daily distribution of activity in Drosophila exhibits a bimodal pattern with clock-controlled morning and evening peaks separated by a midday "siesta." In prior work, we showed that the thermosensitive splicing of a 3'-terminal intron in the RNA product from the Drosophila period (per) gene (dper) is critical for temperature-induced adjustments in the timing of evening activity. Cold temperatures enhance the splicing efficiency of this intron (termed dmpi8, Drosophila melanogaster per intron 8), an event that stimulates the daily accumulation of dper RNA and protein, leading to earlier evening activity. Conversely, warm temperatures attenuate dmpi8 splicing efficiency contributing to delayed evening activity, likely ensuring that flies avoid activity during the hot midday sun when they are at increased risk of desiccation. Here, we discuss the underlying molecular mechanisms governing the thermosensitive splicing of dmpi8 and how it contributes to seasonal changes in the daily activity patterns of Drosophila. On a broader perspective, RNA-RNA interactions likely have fundamental roles in the thermal adaptation of life forms to the daily and seasonal changes in temperature.
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Azhar A, Lim C, Kelly E, O'Rourke K, Dudeney S, Hurson B, Quinlan W. Cost induced by hip fractures. IRISH MEDICAL JOURNAL 2008; 101:213-215. [PMID: 18807812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Hip fracture is the most common fracture in the elderly population. Treating hip fractures is a major burden on the Irish Health system. There is no recent Republic of Ireland study detailing hospital costs for such injuries. A comprehensive analysis of 143 patients admitted with a hip fracture was performed to determine current medical expenditure incurred during acute hospitalization for hip fractures during 2005 in a major university hospital. Costs associated with surgery (implant & theatre costs), laboratory, radiology, physiotherapy and ward were calculated on individual basis. All the hip fractures were above 60 years of age (mean 82 years); average stay in the hospital was 11 days. The mean total hospital expenditure per patient was Euro 9236.01 of which ward costs contributed 55.33%, operative costs 39.82% and investigations 4.83%. The result clearly show that hip fractures have a major economic impact arising from the inpatient treatment, most of which relate to length of hospital stay.
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Onyiaodike C, Young A, Lim C, Graham A, Freeman D. ABCA1, LDL receptor and STARD3 cholesterol transporter mRNA expression are upregulated in placentae from preeclamptic pregnancies. Atherosclerosis 2008. [DOI: 10.1016/j.atherosclerosis.2008.04.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Lah J, Lim C, Suh T. SU-FF-T-219: Evaluation of the Long-Term Stability for the Cylindrical Ionization Chambers. Med Phys 2007. [DOI: 10.1118/1.2760880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Frei H, Everts R, von Ammon K, Kaufmann F, Walther D, Schmitz SFH, Collenberg M, Steinlin M, Lim C, Thurneysen A. Randomised controlled trials of homeopathy in hyperactive children: treatment procedure leads to an unconventional study design. Experience with open-label homeopathic treatment preceding the Swiss ADHD placebo controlled, randomised, double-blind, cross-over trial. HOMEOPATHY 2007; 96:35-41. [PMID: 17227746 DOI: 10.1016/j.homp.2006.11.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2006] [Revised: 11/02/2006] [Accepted: 11/06/2006] [Indexed: 11/15/2022]
Abstract
BACKGROUND Treatment of patients with attention deficit hyperactivity disorder (ADHD) with homeopathy is difficult. The Swiss randomised, placebo controlled, cross-over trial in ADHD patients (Swiss ADHD trial) was designed with an open-label screening phase prior to the randomised controlled phase. During the screening phase, the response of each child to successive homeopathic medications was observed until the optimal medication was identified. Only children who reached a predefined level of improvement participated in the randomised, cross-over phase. Although the randomised phase revealed a significant beneficial effect of homeopathy, the cross-over caused a strong carryover effect diminishing the apparent difference between placebo and verum treatment. METHODS This retrospective analysis explores the screening phase data with respect to the risk of failure to demonstrate a specific effect of a randomised controlled trial (RCT) with randomisation at the start of the treatment. RESULTS During the screening phase, 84% (70/83) of the children responded to treatment and reached eligibility for the randomised trial after a median time of 5 months (range 1-18), with a median of 3 different medications (range 1-9). Thirteen children (16%) did not reach eligibility. Five months after treatment start, the difference in Conners Global Index (CGI) rating between responders and non-responders became highly significant (p = 0.0006). Improvement in CGI was much greater following the identification of the optimal medication than in the preceding suboptimal treatment period (p < 0.0001). CONCLUSIONS Because of the necessity of identifying an optimal medication before response to treatment can be expected, randomisation at the start of treatment in an RCT of homeopathy in ADHD children has a high risk of failure to demonstrate a specific treatment effect, if the observation time is shorter than 12 months.
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Jung Y, Cho Y, Kim J, Suh Y, Oh S, Lim C, Kim M, Park H. P63 Can the histoculture drug response assay (HDRA) predict the clinical results of chemotherapy in breast cancer? Breast 2007. [DOI: 10.1016/s0960-9776(07)70128-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Russell DB, McNamee H, Lim C, Leamy J, de Costa C. 32. EXPERIENCE OF EARLY MEDICAL ABORTION IN A REGIONAL CENTRE. Sex Health 2007. [DOI: 10.1071/shv4n4ab32] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Access to abortion services is often severely limited in parts of regional Australia, including north Queensland. In December 2005 one of the authors made a joint application to the Therapeutic Goods Administration (TGA) for approval to prescribe and supply the drug mifepristone (RU486) for the purpose of induced abortion. This was successful, and to date 10 medical abortions using a combination of mifepristone and misoprostol have been carried out.
Clinicians at the Cairns Sexual Health Service have been unable to prescribe mifepristone, but since April 2006 have been using a combination of methotrexate and misoprostol to perform medical abortions up to 9 weeks' gestation. To date 16 have been performed. The mean age of patients undergoing the procedure was 25 (range 17-36) with the indications being for mental health and/or psychosocial reasons. The gestational age at abortion ranged from 4-8 weeks. One woman required a surgical abortion for an unsuccessful medical abortion.
The procedure, whether using mifepristone of methotrexate, is generally well-tolerated and has been shown to be safe. The clinical outcomes will be presented in detail.
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Kim DY, Lim C, Parasuraman R, Raoufi M, Yoshida A, Arenas J, Denny J, Malinzak L, Almarastani M, Moonka D, Brown K, Sherbondy M, Gordon S, Abouljoud M. Renal Disease Burden Following Liver Transplantation. Transplant Proc 2006; 38:3663-5. [PMID: 17175361 DOI: 10.1016/j.transproceed.2006.10.054] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2006] [Indexed: 02/03/2023]
Abstract
UNLABELLED Significant chronic kidney disease (CKD) occurs following orthotopic liver transplant (OLT). Since CKD is associated with increased cardiovascular events, mortality, and hepatic allograft dysfunction, early recognition of CKD and implementation of changes may improve the long-term outcome. The purpose of this study was to determine the burden of renal disease following OLT. PATIENTS AND METHODS We retrospectively reviewed our OLT recipients from 1997 until 2004. We calculated glomerular filtration rates (GFR) using the Modification of Diet in Renal Disease study (MDRD) method. The GFRs were further subdivided into pre-MELD and post-MELD eras. RESULTS During the study period, we performed 407 OLTs. We censored data from living donor liver transplants (n = 14), combined liver-kidney transplants (n = 12), and from patients whom we did not have complete data for 6 months after transplant (n = 40). Mean MELD score at the time of transplant was 18 +/- 7 (mean +/- standard deviation). The mean GFR at 6 months following OLT was 63.7 +/- 30.2 mL/min per 1.73 m(2). Only 14% (n = 47) of our patients had normal renal function at 6 months, while 78% (n = 266) of our patients had mild to moderate risk for renal failure. Eight percent (n = 28) had stage 4 or 5 CKD. There were no differences between the pre-MELD and post-MELD GFRs. CONCLUSIONS The burden of renal disease is significant in our patient population at 6 months posttransplantation. It may be important to introduce CKD management as early as 6 months after transplant to impact the outcomes of OLT recipients.
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Lim C, Cho J, Han S, Koong M, Kang I, Jun J. P-953. Fertil Steril 2006. [DOI: 10.1016/j.fertnstert.2006.07.1346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Lim C, O'sullivan MGJ. Shoulder tip pain: an under-reported complication of ventriculoperitoneal shunt. Br J Neurosurg 2006; 19:354-6. [PMID: 16455545 DOI: 10.1080/02688690500305340] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Ventriculoperitoneal (VP) shunt insertion is the commonest form of treatment for hydrocephalus. Shoulder tip pain after VP shunt insertion is unusual and has only recently been reported. We present a case of excruciating shoulder tip pain due to diaphragmatic irritation after VP shunt insertion.
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Lee C, Lee CN, Kim SC, Lim C, Chang YH, Kang CH, Jo WM, Kim WH. Outcome after one-stage repair of tetralogy of Fallot. THE JOURNAL OF CARDIOVASCULAR SURGERY 2006; 47:65-70. [PMID: 16434948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
AIM The purpose of this study was to evaluate the outcome after one-stage repair of tetralogy of Fallot (TOF). METHODS Between May 1997 and December 2002, 240 patients with a median age of 9 months (1 month-48 years) underwent one-stage repair of TOF. Closure of ventricular septal defect (VSD) was accomplished through the right atrium in 171 (71.3%) patients and through the right ventricle in 69 (28.7%) patients. For the reconstruction of the right ventricular outflow tract (RVOT), transannular repair was performed in 151 (62.9%) patients, and non-transannular repair was performed in 89 (37.1%) patients. Follow-up was complete, averaging 40+/-17.6 months (3 months-5.8 years). RESULTS There were 2 (0.8%) operative deaths. Between early repair group (age under 6 months) and late repair group (age above 6 months), there were no differences in the method of RVOT reconstruction (transannular vs non-transannular) and the need for branch pulmonary artery angioplasty. Early repair group had more transventricular VSD closure than late repair group (46% vs 22%, P < 0.05). Duration of inotropic support and intensive care unit (ICU) stay were longer in the early repair group (P < 0.05). Five patients required reoperations due to RVOT obstruction (n = 3), and residual VSD (n = 2). Kaplan-Meier freedom from reoperation at 5 years was 98.3+/-1%. Nine patients underwent catheter intervention for branch pulmonary artery stenosis. Freedom from reintervention at 5 years was 95.4+/-1.5%. All survivors are currently asymptomatic. CONCLUSIONS One-stage repair of TOF could be performed with low mortality and morbidity. Especially, early one-stage repair in symptomatic infant could be performed with low risk, eliminating the need for palliative procedures.
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Lennon PA, Cooper ML, Curtis MA, Lim C, Ou Z, Patel A, Cheung SW, Bacino CA. Array-based comparative genomic hybridization facilitates identification of breakpoints of a novel der(1)t(1;18)(p36.3;q23)dn in a child presenting with mental retardation. Am J Med Genet A 2006; 140:1156-63. [PMID: 16688748 DOI: 10.1002/ajmg.a.31243] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Monosomy of distal 1p36 represents the most common terminal deletion in humans and results in one of the most frequently diagnosed mental retardation syndromes. This deletion is considered a contiguous gene deletion syndrome, and has been shown to vary in deletion sizes that contribute to the spectrum of phenotypic anomalies seen in patients with monosomy 1p36. We report on an 8-year-old female with characteristics of the monosomy 1p36 syndrome who demonstrated a novel der(1)t(1;18)(p36.3;q23). Initial G-banded karyotype analysis revealed a deleted chromosome 1, with a breakpoint within 1p36.3. Subsequent FISH and array-based comparative genomic hybridization not only confirmed and partially characterized the deletion of chromosome 1p36.3, but also uncovered distal trisomy for 18q23. In this patient, the duplicated 18q23 is translocated onto the deleted 1p36.3 region, suggesting telomere capture. Molecular characterization of this novel der(1)t(1;18)(p36.3;q23), guided by our clinical array-comparative genomic hybridization, demonstrated a 3.2 Mb terminal deletion of chromosome 1p36.3 and a 200 kb duplication of 18q23 onto the deleted 1p36.3, presumably stabilizing the deleted chromosome 1. DNA sequence analysis around the breakpoints demonstrated no homology, and therefore this telomere capture of distal 18q is apparently the result of a non-homologous recombination. Partial trisomy for 18q23 has not been previously reported. The importance of mapping the breakpoints of all balanced and unbalanced translocations found in the clinical laboratory, when phenotypic abnormalities are found, is discussed.
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Kim J, Lim C, Jun J, Cha S, Koong M, Kang I. Preimplantation Genetic Diagnosis for Aneuploidy Screening in Patients With Poor Reproductive Outcome. Fertil Steril 2005. [DOI: 10.1016/j.fertnstert.2005.07.888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Ong LS, Vijayan A, Koh CS, Lai CC, Lim CW, Loke WF, Low SH, Tang KY, Wong FL, Yong KL. An intelligent tutoring system for trauma management (Trauma-Teach): a preliminary report. ANNALS OF THE ACADEMY OF MEDICINE, SINGAPORE 2005; 34:499-504. [PMID: 16205828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Trauma-Teach is an interactive software for tutoring surgical trainees on medical trauma management procedures. Users of the system interact with a virtual patient suffering from trauma injuries. The task of the user is to stabilise the virtual patient, discover the underlying injuries and decide on an appropriate management plan. Artificial intelligence techniques are used to simulate the patient's pulmonary and cardiovascular systems in real time, determine the responses and results of treatments and diagnostics accordingly, model the patient deterioration if wrong actions are taken, and give a measure of reality to the system by selecting actual trauma cases from the hospital's database.
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Huh S, Cho W, Park Y, Jeong H, Lim C. SU-FF-I-44: Air Bubble-Free Motorized PET-CT QA Phantom with Shielding Well. Med Phys 2005. [DOI: 10.1118/1.1997524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Hong S, Jung J, Lim C, Na S, Ahn J, Lee S, Kim W, Kim D, Koh Y. Crit Care 2005; 9:P13. [DOI: 10.1186/cc3076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Lim C, Alexander MP, LaFleche G, Schnyer DM, Verfaellie M. The neurological and cognitive sequelae of cardiac arrest. Neurology 2004; 63:1774-8. [PMID: 15557489 DOI: 10.1212/01.wnl.0000144189.83077.8e] [Citation(s) in RCA: 171] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND Although cardiac arrest (CA) is commonly cited as a cause of amnesia, patients referred to the authors' center with a diagnosis of "amnesia" after CA rarely have isolated memory deficits. OBJECTIVE To determine whether CA is a cause of pure amnesia and to assess patterns of cognitive deficits after CA. METHODS The authors used cognitive assessment of 11 consecutive patients referred for memory deficits after CA, targeted at deficit domains identified in the literature reviews, and analysis of specific case reports and prospective studies of cognition after CA. RESULTS The most common pattern of impairment in their patients was a combination of memory and motor deficits with variable executive impairment. No patient had isolated memory impairment. The case reports do not support the claim that isolated amnesia is a residual of CA; most cases of isolated amnesia are caused by subacute episodes of anoxia or excitotoxic injury. The prospective reports identify highly variable patterns of impairment, but isolated amnesia remains rare. CONCLUSIONS Diffuse, sudden ischemic-hypoxic injury caused by cardiac arrest (CA) does not preferentially damage memory systems. Subacute or stepwise hypoxic or excitotoxic injury may cause isolated hippocampal injury and amnesia. The common pattern of impairment in the postacute phase after CA is a combination of memory, subtle motor, and variable executive deficits.
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Han SH, Kim SD, Kim CS, Kim WH, Lim C, Park YS, Bahk JH. Comparison of Central Venous Catheterization Sites in Infants. J Int Med Res 2004; 32:563-9. [PMID: 15587750 DOI: 10.1177/147323000403200601] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
This study aimed to compare the rates of success and complications between different sites of central venous catheterization in infants. A total of 272 infants were randomized to four groups: right subclavian group (G-RSCV), right internal jugular group (G-RIJV), left subclavian group (G-LSCV) and left internal jugular vein group (G-LIJV). In 77.2% of the patients, we successfully introduced a catheter at the first attempt. The rate of successful catheter placement was highest in the RIJV (RIJV 89.7%, LIJV 79.4%, RSCV 66.2% and LSCV 55.9%). With regard to complications, the rate of arterial puncture, guide wire advancement failure and malpositioning of the catheter were all significantly more frequent during SCV catheterization (SCV versus IJV: 10.1% versus 2.1%, 12.4% versus 0% and 13.4% versus 0.6%, respectively). Our results imply that IJV, especially RIJV, should be the first choice for central venous catheterization in infants.
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Yildirim-Aksoy M, Lim C, Dowd MK, Wan PJ, Klesius PH, Shoemaker C. In vitro inhibitory effect of gossypol from gossypol-acetic acid, and (+)- and (-)-isomers of gossypol on the growth of Edwardsiella ictaluri. J Appl Microbiol 2004; 97:87-92. [PMID: 15186445 DOI: 10.1111/j.1365-2672.2004.02273.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AIM This study was conducted to evaluate the toxic effect of gossypol from gossypol-acetic acid, and (+)- and (-)-isomers of gossypol on the growth of Edwardsiella ictaluri. METHODS AND RESULTS Inhibitory effect of various concentrations of gossypol on the growth of E. ictaluri was determined. Bacterial recovery was performed by preincubation of bacteria in medium containing various concentrations of gossypol and subsequent activation of bacteria by inoculating on gossypol-free plates. Concentrations of racemic gossypol, (+)-gossypol and (-)-gossypol of 1.5 microg ml(-1) or higher significantly reduced the number of bacterial colonies compared with that of the control. The growth of E. ictaluri was completely inhibited on agar plates supplemented with 3 microg ml(-1), regardless of the forms of gossypol. The inhibitory effect of (+)-gossypol was higher than that of (-)-gossypol or gossypol-acetic acid. Recovery of E. ictaluri was <50% for all three forms of gossypol at concentrations of 5 microg ml(-1). Bacterial recovery remained relatively constant (6.5%) at gossypol concentrations from 10 to 100 microg ml(-1). Complete killing of E. ictaluri was not reached at gossypol levels up to 100 microg ml(-1). CONCLUSION Gossypol-acetic acid, and (+)- and (-)-optical isomers have anti-bacterial effect against E. ictaluri. The results suggest the action is bacteriostatic rather than bactericidal. SIGNIFICANCE AND IMPACT OF THE STUDY The therapeutic effect of gossypol against E. ictaluri may be useful in controlling enteric septicaemia of catfish.
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Rotimi O, Rodrigues MG, Lim C. Microscopic colitis with giant cells-is it really a distinct pathological entity? Histopathology 2004; 44:503-5. [PMID: 15140001 DOI: 10.1111/j.1365-2559.2004.01825.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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