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At least 1,315 records · Page 73Linked to original sources
PubMed1999

Erythropoiesis: Hereditary Spherocytosis in Greece: Collective Data on a Large Number of Patients.

This paper summarizes data from a haematological, biochemical, and clinical study carried out in 73 patients of Greek origin (38 non-splenectomized children and 35 adults; 17 splenectomized) with Hereditary Spherocytosis (HS). Mean haemoglobin levels in the non-splenectomized patients were significantly lower (122 +/- 15 g/L) than those of the splenectomized group (144 +/- 15 g/L). In all patients with HS (non-splenectomized and splenectomized adults, and children) the MCHC values (355 +/- 22, 358 +/- 16 and 356 +/- 16 respectively) were significantly increased compared to a control group, while the percentage of microcytic and hyperchromic red cell subpopulations was significantly increased in the former group of adults. SDS-PAGE demonstrated that 29 patients (39.7%) had isolated spectrin deficiency, 22 patients (30.1%) had combined spectrin and ankyrin deficiency, 17 patients (23.3%) had band 3 deficiency and 1 patient had protein 4.2 deficiency. No quantitative biochemical defects were detected in 4 patients (5.5%). The biochemical findings did not correlate with the haematological and clinical phenotype of the disease.

Journal Article↗
PubMed2003

Nefazodone poisoning: toxicokinetics and toxicodynamics using continuous data collection.

Nefazodone overdose has been reported infrequently. The commonest effects reported are drowsiness, nausea, dizziness, and vomiting, less commonly hypotension and bradycardia. We report a case of single-agent nefazodone poisoning. Serial drug concentrations were taken for quantification of parent drug and metabolites. Clinical findings were documented every 1 to 2 hours. We modeled both the toxicokinetics of nefazodone and correlated this with clinical effects and electrocardiograph (ECG) abnormalities. A 16-year-old female took 2.4 g of nefazodone. She had significant drowsiness in the first 6 hours, associated with hypotension (systolic BP < 90 mmHg; lowest BP 70/30 mmHg) for 18 hours, and mild bradycardia (slowest rate of 56 bpm). She had a prolonged QT/QTc which normalized over 24 hours. She was given charcoal and intravenous fluids and was observed carefully, recovering with no problems. The terminal elimination half-life for nefazodone was 8.3 hours, and its metabolite hydroxy(OH)-nefazodone was 14.6 hours. BP-time curves demonstrated an 18-hour period of hypotension. There was a significant correlation between systolic BPand OH-nefazodone (R2 = 0.602). HR remained between 56 and 66 bpm for 30 hours despite hypotension. QT was significantly correlated with nefazodone (R2 = 0.911) and OH-nefazodone (R2 = 0.797), but no significant relationship between QTc and drug concentrations. The case demonstrates that nefazodone may potentially cause cardiac toxicity, which appears to be concentration-dependent. Although QT was concentration-dependent, this would need confirmation with other cases. Bradycardia, hypotension, and drowsiness are the most significant effects and are maximal in the first 12 hours when parent and metabolite concentrations are high.

Adolescent↗
PubMed2005

Antibody-mediated pure red cell aplasia (PRCA): ensuring future progress by collecting data from a registry.

The recent emergence of antibody (Ab)-mediated pure red cell aplasia (PRCA) resulting from administration of certain erythropoiesis-stimulating agents (ESAs) has heightened awareness of the potential for this disorder in patients receiving ESAs for anaemia associated with chronic kidney disease (CKD). The Spanish Society of Nephrology sponsored an independent registry for analysis of patients who developed epoetin-induced, Ab-mediated PRCA in Spain. Twelve patients from 11 regional hospitals were included in the Spanish PRCA registry from November 2000 to December 2002 that met the criteria for Ab-mediated PRCA. Patients were reported using a standardized form specifically developed for PRCA, and serum samples were analysed in a central laboratory at Reina Sofia University Hospital in Cordoba, Spain. The characteristics of these patients, their serological and haematological results, and the outcomes of immunosuppressive therapies are presented. The Spanish PRCA registry serves as a model for establishing an independent global PRCA registry sponsored by the various nephrology societies in European Union countries, and elsewhere and coordinated by key investigators from the respective countries.

Adult↗
PubMed2006

Developing a national primary care-based early warning system for health protection--a surveillance tool for the future? Analysis of routinely collected data.

The increasing threat of infections with pandemic potential such as influenza has focussed attention on the information needed to inform those managing a pandemic. The Health Protection Agency, Nottingham University and EMIS have developed a new national health protection surveillance system using QRESEARCH, an established primary care-derived database, to provide timely and local information on trends in community illness and prescribing. This article describes the first year of the surveillance project. Data on consultations and prescribing were extracted from routinely generated computerized consultation records between November 2004 and December 2005. Weekly consultation and prescribing rates for a range of conditions including influenza-like illness and prescription of anti-viral drugs for influenza and vomiting were developed as 'key indicators'. These indicators were presented in a weekly bulletin showing data to strategic health authority level for use by those working in public health. The particular value of this scheme is the ability to produce timely data on illness to local level and to link prescribing to morbidity. The data were used 'real time' to reassure about lack of illness following the Buncefield Fuel Depot incident. This scheme is being further developed to provide daily local influenza-related information needed in an influenza pandemic.

Ambulatory Care Information Systems↗