Present Cohort (present + cohort)

Distribution by Scientific Domains


Selected Abstracts


Transthyretin as a potential CSF biomarker for Alzheimer's disease and dementia with Lewy bodies: effects of treatment with cholinesterase inhibitors

EUROPEAN JOURNAL OF NEUROLOGY, Issue 3 2010
K. Schultz
Background:, Previous studies have indicated that transthyretin (TTR) levels in cerebrospinal fluid (CSF) are altered in depression and dementia. The present study aimed to investigate whether CSF TTR can be used to discriminate between patients with Alzheimer's disease (AD) and patients with dementia with Lewy bodies (DLB) with or without medication, as well as to reveal whether CSF TTR correlates with depression in dementia. Methods:, CSF samples from 59 patients with AD, 13 patients with DLB and 13 healthy controls were collected, and biochemical analysis was performed. Subjects were assessed for the presence of depression. Results:, No significant differences in CSF TTR were found between AD, DLB, and control subjects or between depressed and non-depressed dementia patients. Interestingly, we found a significant reduction in CSF TTR (14%) in AD patients who were medicated with cholinesterase inhibitors compared to those AD patients who were not. Conclusions:, Significant reductions in CSF TTR were found after cholinesterase inhibitor treatment in patients with AD compared to untreated individuals. CSF TTR was unaltered in patients with DLB and had no relationship to depression in the present cohort with dementias. [source]


Injuries to the head, face, mouth and neck in physically abused children in a community setting

INTERNATIONAL JOURNAL OF PAEDIATRIC DENTISTRY, Issue 5 2005
A. M. CAIRNS
Summary. Objectives. The aims of the present study were to identify the incidence of orofacial injuries found within a cohort of physically abused children, and examine demographic data surrounding the alleged perpetrator, the location in which the alleged assault occurred, the mechanism of injury and the actual orofacial injury incurred. Methods. The research took the form of a retrospective study of clinical case records of children with suspected physical abuse from 1 June 1998 to 31 May 2003. Seven hundred and fifty case records were identified and 390 (46·7%) were available for data extraction. Results. Fifty-nine per cent (n = 230) of children had signs of abuse on the head, face or neck. The alleged perpetrator was the mother in 104 cases (26·7%), the father in 100 (25·6%) and mother's partner in 49 other cases (12·6%). More than half (53·3%) of the alleged abuse occurred in the child's home; in 32·3% of cases, the location was not recorded. Other locations included outside in a public place, school and at the home of the alleged abuser. Some 23·4% (n = 54) had been punched or slapped around the head, neck or face, 17·4% (n = 40) had been struck by an object, and 15·2% (n = 35) had allegedly sustained multiple modes of injury. Bruising to the head, neck or face was seen in 95·2% (n = 219) of children, and 32·6% (n = 75) had abrasions; 65·2% (n = 150) of the bruises and 22·9% (n = 53) of the abrasions were on the face. Conclusions. Fifty-nine per cent of physically abused children in the present cohort had orofacial signs of abuse which would be easily visible to a dental practitioner. The commonest injuries were bruises and abrasions. This concurs with previous reports in the literature and highlights the important role of dental practitioners in the recognition of children who have been abused. [source]


Diagnostic Coronary Angiography in Patients with Peripheral Arterial Disease: A Sub-study of the Coronary Artery Revascularization Prophylaxis Trial

JOURNAL OF INTERVENTIONAL CARDIOLOGY, Issue 5 2008
SANTIAGO GARCIA M.D.
Background: Although patients in need of elective vascular surgery are often considered candidates for diagnostic coronary angiography, the safety of this invasive study has not been systematically studied in a large cohort of patients scheduled for an elective vascular operation. The goal of this sub-study of the Coronary Artery Revascularization Prophylaxis (CARP) trial was to assess the safety of coronary angiography in patients with peripheral vascular disease. Methods: The CARP trial tested the long-term benefit of coronary artery revascularization prior to elective vascular operations. Among those patients who underwent diagnostic coronary angiography during screening for the trial, the associated complications were determined at 24 hours following the diagnostic procedure. Results: Over 5,000 patients were screened during a 4-year recruitment period at 18 major VA medical centers and the present cohort consists of 1,298 patients who underwent preoperative coronary angiography. Surgical indications for vascular surgery included an expanding aortic aneurysm (AAA) (n = 446; 34.4%) or arterial occlusive disease with either claudication (n = 457; 35.2%) or rest pain (n = 395; 30.4%). A total of 39 patients had a confirmed complication with a major complication identified in 17 patients (1.3%). Complication rates were higher in patients with arterial occlusive symptoms compared with expanding aneurysms (1.8% vs. 0.5%; P = 0.07) and were not dissimilar with femoral (2.8%) versus nonfemoral (4.7%) access sites (P = 0.42). Conclusions: Coronary angiography is safe in patients with peripheral arterial disease undergoing preoperative coronary angiography. The complication rate is higher in patients with symptoms of arterial occlusive disease. [source]


The FOOTSTEP self-management foot care programme: Are rheumatoid arthritis patients physically able to participate?

MUSCULOSKELETAL CARE, Issue 1 2009
PgCert, R. Semple BSc Hons
Abstract Background:,The FOOTSTEP self-management foot care programme is a clinical and cost-effective programme for basic foot care in the elderly. The aim of this study was to determine if patients with rheumatoid arthritis (RA) would be physically able to participate. Methods:,A consecutive cohort of RA patients undergoing podiatry care underwent tests for sight, reach and grip strength to determine their physical ability to undertake self-managed foot care. Results:,Thirty RA patients (10 male, 20 female), with a median age of 61 years (range 42 to 84) and disease duration of 10 years (range one to 40), were recruited. All patients passed the sight test, whereas the reach and grip tests were passed by 77% and 67% of patients, respectively. Only 57% of patients passed all the physical tests. Patients who failed the physical tests were older, and had longer disease duration and higher physical disability, pain and general health scores but these were not statistically different. Conclusions:,Just over half the patients in this present cohort may be physically able to undertake some aspects of self-managed foot care, including nail clipping and filing, callus filing and daily hygiene and inspection. Copyright © 2008 John Wiley & Sons, Ltd. [source]


Highly symptomatic adult polycystic liver disease: options and results of surgical management

ANZ JOURNAL OF SURGERY, Issue 8 2004
Yu Meng Tan
Background: The majority of patients afflicted with adult polycystic liver disease (APLD) are asymptomatic. For those who are symptomatic, there are a variety of treatment procedures that have been proposed but these lack verification through long-term studies with respect to safety and long-term effectiveness. Choice of surgical procedure is related to the severity of APLD and morphology of the cysts within the liver. The aim of the present study was to analyse the immediate and long-term results of fenestration and combined resection,fenestration at Singapore General Hospital. Methods: A retrospective analysis of clinical, operative, imaging and follow-up data was carried out for 12 patients (10 women and two men) with symptomatic APLD who underwent surgery from January 1992 to December 2000. The primary outcome measures assessed were postoperative alleviation of symptoms, performance status, complications, mortality and long-term recurrence of symptoms. Results: Nine patients underwent 12 fenestration procedures and three patients had combined resection,fenestration. Fenestration was carried out for eight of nine patients with a dominant cyst morphology and combination resection,fenestration was carried out for those three patients with diffuse cyst morphology. There was no operative mortality and all patients were discharged from hospital free of their preoperative symptoms. Overall morbidity rate was 58%. The mean follow up for the present cohort was 29.3 months. Only two patients had recurrence of symptoms. One patient with dominant cyst morphology who underwent laparoscopic fenestration had recurrence at 26 and 43 months but this was successfully treated finally with open fenestration. The other patient had diffuse cyst morphology and was treated with fenestration for recurrent cyst infection that recurred 1 month postoperatively. This required subsequent intravenous antibiotics and percutaneous drainage for resolution of symptoms. Conclusion: Treatment for symptomatic APLD should be based on the morphology of the liver cysts. Fenestration is a safe and acceptable procedure for patients with a dominant cyst pattern where liver size can be reduced after the cysts collapse. A combination of resection,fenestration is suitable for those with a diffuse cyst pattern where grossly affected segments are resected in combination with fenestration to allow for reduction in liver size. [source]


Analysis of the PTPN11 gene in idiopathic short stature children and Noonan syndrome patients

CLINICAL ENDOCRINOLOGY, Issue 3 2008
Lize V. Ferreira
Summary Background, Mutations in the PTPN11 gene are the main cause of Noonan syndrome (NS). The presence of some NS features is a frequent finding in children with idiopathic short stature (ISS). These children can represent the milder end of the NS clinical spectrum and PTPN11 is a good candidate for involvement in the pathogenesis of ISS. Objective, To evaluate the presence of mutations in PTPN11 in ISS children who presented NS-related signs and in well-characterized NS patients. Patients and methods, We studied 50 ISS children who presented at least two NS-associated signs but did not fulfil the criteria for NS diagnosis. Forty-nine NS patients diagnosed by the criteria of van der Burgt et al.3 were used to assess the adequacy of these criteria to select patients for PTPN11 mutation screening. The coding region of PTPN11 was amplified by polymerase chain reaction (PCR), followed by direct sequencing. Results, No mutations or polymorphisms were found in the coding region of the PTPN11 gene in ISS children. Nineteen of the 49 NS patients (39%) presented mutations in PTPN11. No single characteristic enabled us to distinguish between NS patients with or without PTPN11 mutations. Conclusion, Considering that no mutations were found in the present cohort with NS-related signs, it is unlikely that mutations would be found in unselected ISS children. The van der Burgt et al. criteria are adequate in attaining NS diagnosis and selecting patients for molecular studies. Mutations in the PTPN11 gene are commonly involved in the pathogenesis of NS but are not a common cause of ISS. [source]