Conventional Parameters (conventional + parameter)

Distribution by Scientific Domains


Selected Abstracts


Impact of parturition on iron status in nonanaemic iron deficiency

EUROPEAN JOURNAL OF CLINICAL INVESTIGATION, Issue 10 2003
A. Krafft
Abstract Background, Iron-deficient nonanaemic parturients risk underdiagnosis as a result of the reliance on postpartum ferritin and haemoglobin as markers of iron status. Ferritin is an acute-phase protein whose levels increase during the inflammatory response, as occurs after delivery. Our aims were to evaluate the impact of parturition on iron status, erythropoiesis and the inflammatory response, and identify the optimal parameters and timing for diagnosing iron deficiency in the presence of postpartum inflammation. Materials and methods, Conventional parameters of iron status, erythropoiesis and the inflammatory response (serum ferritin, serum iron, transferrin saturation, C-reactive protein) were compared with more recent parameters [soluble transferrin receptors (sTfR), hypochromic red cells, reticulocyte indices] within 48 h either side of delivery in 64 iron-deficient nonanaemic women (defined by a prepartum serum ferritin , 15 µg L,1, and a pre- and postpartum haemoglobin of , 11·0 g dL,1 and , 10·0 g dL,1, respectively). Results, Mean sTfR decreased pre to postpartum from 7·3 to 5·8 µg mL,1 (P < 0·01), while mean serum ferritin increased from 9·7 to 16·9 µg L,1 (P < 0·01). Serum ferritin did not correlate with haemoglobin pre or postpartum (r = 0·04, P = 0·7; r = 0·2, P = 0·09), but a correlation persisted postpartum between hypochromic red blood cells and haemoglobin (r = ,0·26; P < 0·05). The percentage of hypochromic red cells remained virtually unchanged pre- and postpartum (4·0% vs. 3·8%; NS). Postpartum mean reticulocyte haemoglobin content (CHr) was 27·1 ± 1·6 pg. Conclusion, Iron status should be tested prepartum, in the absence of an inflammatory response, rather than in the early postpartum. A valuable additional parameter, where available, might be the hypochromic red cell percentage, which is virtually uninfluenced by the inflammatory response. Furthermore, hypochromic red cell percentage, CHr and sTfR can be helpful to differentiate between functional iron deficiency and depleted iron stores. [source]


Abstracts of the 8th Meeting of the Italian Peripheral Nerve Study Group: 46

JOURNAL OF THE PERIPHERAL NERVOUS SYSTEM, Issue 1 2003
L Padua
Traditional outcome assessment in neurological diseases has always been based on physician-derived and instrumental findings. Over the last two decades, clinical and public health researchers emphasized the need for a thorough evaluation of concepts such as Health Related Quality of Life (HRQoL) to study the impact of chronic illnesses and their treatments on the patient's life. The most frequent inherited neuropathy is Charcot-Marie-Tooth disease (CMT). CMT Patients develop progressive weakness and sensory disturbances, becoming sometimes severely disabled even at very young age. In CMT clinic, neurophysiologic, pathologic and genetic evaluation, are considered fundamental to assess nerve involvement and diagnose, but how these findings are related to HRQoL and disability is not assessed. We propose a prospective follow-up (24,30 months) of CMT patients with multiple measurements of CMT. Besides conventional clinic, pathologic, neurophysiologic and genetic measurements we adopt validated patient-oriented measurements to assess HRQoL and disability. Aims of the study are: 1) to assess HRQoL and disability of CMT patients in a wide and well-represented sample and to evaluate the relationships between conventional parameters and the patient's perception of his own HRQoL and disability; 2) to evaluate natural history of HRQoL and disability in CMT, and to evaluate the predictive value of phenotype, genetic picture, neurophysiological and pathological pattern 3) to develop a national network and a database on CMT disease (this aim includes the standardization, based on a consensus validation process, of the most used terms and measurements in CMT and the development of a database software). In a preliminary reunion, the authors developed a dedicated database for patients affected by CMT. Details about this database will be presented. [source]


Asthma Control Test correlates well with the treatment decisions made by asthma specialists

RESPIROLOGY, Issue 4 2009
Fanny W.S. KO
ABSTRACT Background and objective: Poor assessment of asthma control results in suboptimal treatment. Identifying parameters that accurately assess control will benefit treatment decisions. The Asthma Control Test (ACT) is a five-item questionnaire for the assessment of asthma control. This study evaluated its correlation with the treatment decisions made by asthma specialists in an outpatient clinic setting, and compared its performance with other conventional parameters including spirometry, PEF rate (PEFR), fractional exhaled nitric oxide (FeNO) and BHR. Methods: The 383 (122 men) study subjects completed a 1-month diary on symptoms and PEFR before the assessment. All subjects then completed the ACT together with same-day spirometry and FeNO measurement. BHR to methacholine was performed in 73 subjects in the week before assessment. Asthma specialists, blinded to the results of the ACT, FeNO and BHR (but not spirometry and PEFR), assessed the patients' level of control according to the 2006 version of the Global Initiative for Asthma guidelines and made appropriate treatment decision. Results: The group mean (SD) age was 46.1 (13.4) years with pre-bronchodilator FEV1 84.72 (20.81) % predicted. Receiver operating characteristic (ROC) curve analysis found that an ACT score of ,20 best correlated with uncontrolled asthma (area under curve (AUC) = 0.76) with a sensitivity of 70.5%, specificity 76.0%, positive predictive value 76.2% and negative predictive value 70.2% for predicting step-up of asthma therapy. On ROC analysis, the ACT score had the highest AUC (0.81 (P < 0.001)) for changing asthma therapy when compared with FeNO, spirometry, PEFR and BHR parameters Conclusions: The ACT correlated better with treatment decisions made by asthma specialists than spirometry, PEFR and FeNO. [source]


Systematic review of the literature for the use of oesophageal Doppler monitor for fluid replacement in major abdominal surgery

ANAESTHESIA, Issue 1 2008
S. M. Abbas
Summary The use of intra-operative Doppler oesophageal probes provides continuous monitoring of cardiac output. This enables optimisation of intravascular volume and tissue perfusion in major abdominal surgery, which is thought to reduce postoperative complications and shorten hospital stay. Medline and EMBASE were searched using the standard methodology of the Cochrane collaboration for trials that compared oesophageal Doppler monitoring with conventional clinical parameters for fluid replacement in patients undergoing major elective abdominal surgery. Data from randomised controlled trials were entered and analysed in Meta-view in Rev -Man 4.2 (Nordic, Denmark). We included five studies that recruited 420 patients undergoing major abdominal surgery who were randomly allocated to receive either intravenous fluid treatment guided by monitoring ventricular filling using oesophageal Doppler monitor or fluid administration according to conventional parameters. Pooled analysis showed a reduced hospital stay in the intervention group. Overall, there were fewer complications and ICU admissions, and less requirement for inotropes in the intervention group. Return of normal gastro-intestinal function was also significantly faster in the intervention group. Oesophageal Doppler use for monitoring and optimisation of flow-related haemodynamic variables improves short-term outcome in patients undergoing major abdominal surgery. [source]


Extent of disease burden determined with magnetic resonance imaging of the bone marrow is predictive of survival outcome in patients with multiple myeloma

CANCER, Issue 1 2010
Sikander Ailawadhi MD
Abstract BACKGROUND: Multiple myeloma (MM) remains an incurable cancer. Treatment often is initiated at the time patients experience a progressive increase in tumor burden. The authors of this report investigated magnetic resonance imaging of the bone marrow (BM-MRI) as a novel approach to quantify disease burden and validated a staging system by correlating BM-MRI with common clinical and laboratory parameters. METHODS: The extent of bone marrow involvement was evaluated by BM-MRI. Clinical and laboratory parameters were assessed in patients with active MM, and correlations between variables were assessed statistically. Bone marrow involvement by BM-MRI was defined as stage A (0%), stage B (<10%), stage C (10%-50%), and stage D (>50%). RESULTS: In total, 170 consecutive patients were evaluated (77 women and 93 men), including 144 patients who had active MM. The median age was 61 years (age range, 35-83 years). Advance stage disease (stage >I) based on Durie-Salmon (DS) staging or International Staging System (ISS) criteria was observed in 122 patients (84%) and 77 patients (53%), respectively. Lytic bone disease was noted in 120 patients (83%). There was a significant association between BM-MRI involvement and DS stage (P = .0006), ISS stage (P = .0001), the presence of lytic bone disease (P < .0001) and mean ,-2 microglobulin levels (P < .0001). Among the patients with previously untreated MM, there was a significant association between BM-MRI stage and overall survival (OS) (univariate P = .013; multivariate P = .045). Plasmacytosis on bone marrow biopsy at diagnosis was not predictive of OS (P = .91). CONCLUSIONS: BM-MRI is a novel approach for quantifying disease burden in patients with MM. The current investigation in a large cohort of nontransplantion MM patients demonstrated that the extent of bone marrow involvement determined by BM-MRI correlates accurately with other conventional parameters of disease burden and can independently predict survival in patients with MM at the time of initial diagnosis. Cancer 2010. © 2010 American Cancer Society. [source]


Assessment of left ventricular systolic function using tissue Doppler imaging in children after successful repair of aortic coarctation

CLINICAL PHYSIOLOGY AND FUNCTIONAL IMAGING, Issue 1 2010
Tomasz Florianczyk
Summary Aim:, Assessment of left ventricular systolic function in children after the successful repair of aortic coarctation using tissue Doppler imaging (TDI). Methods:, The study group consisted of 32 patients (mean age 12·0 ± 4·2 years) after the aortic coarctation repair. The TDI parameters and the conventional echocardiographic endocardial and midwall indices of the left ventricular systolic function were analysed and compared with the results obtained from 34 healthy children. Results:, The systolic mitral annulus motion velocity, systolic myocardial velocity of the medial segment of the left ventricular septal wall, left ventricular strain and Strain Rate (SR) in the study group were significantly higher than in the control group, respectively: 6·92 ± 0·75 cm s,1 versus 6·45 ± 0·83 cm s,1; 5·82 ± 1·03 cm s,1 versus 5·08 ± 1·11 cm s,1; ,28·67 ± 6·04% versus ,22·53 ± 6·44% and ,3·20 ± 0·76 s,1 versus ,2·39 ± 0·49 s,1. Except midwall shortening fraction the conventional endocardial and midwall echocardiographic indices in the study group were significantly higher in comparison to the healthy controls. The left ventricular systolic meridional fibre stress and end-systolic circumferential wall stress did not differ between the examined groups. There were no differences of the TDI or conventional parameters between hypertensive and normotensive patients. Conclusions:, Left ventricular systolic performance in children after the surgical repair of aortic coarctation reveals tendency to rise in late follow-up despite a satisfactory result after surgery. Higher systolic strain and SR in children treated due to coarctation of the aorta may suggest the increased preserved left ventricular performance despite normalization of afterload. [source]


Day case stapled haemorrhoidopexy for prolapsing haemorrhoids

COLORECTAL DISEASE, Issue 1 2006
G. C. Beattie
Abstract Objective, Conventional surgical management of prolapsing haemorrhoids is by excisional haemorrhoidectomy. Postoperative pain has restricted the application of such procedures in the day case setting. These operations remain associated with a period of restricted activity. The use of circular stapling devices as an alternative to the excisional approach in the management of haemorrhoids has been described. This study reports our experience of stapled haemorrhoidopexy as a day case procedure. Methods, Patients with third or fourth degree haemorrhoids were eligible for the procedure. Patients were considered suitable candidates for day case surgery based on conventional parameters. Symptoms were assessed using a previously validated symptom severity rating score. Stapled haemorrhoidopexy was carried out using a circular stapling device. Pain scores were obtained prior to discharge. Patients were admitted if pain was uncontrolled despite oral analgesia. Symptoms were re-scored at six-week follow-up. Results, Over a 70-month period 168 consecutive stapled haemorrhoidopexies were performed or directly supervised by one consultant colorectal surgeon. One hundred and ten (65%) patients were considered appropriate candidates for day case surgery by conventional criteria. Ninety-six (87.3%) patients successfully underwent stapled haemorrhoidopexy on a day case basis. Fourteen (12.7%) patients required admission on the day of surgery (5 for early postoperative bleeding, 4 for pain necessitating continuing opiate analgesia, two for urinary retention and three for surgery performed late in the day). Six (5%) patients were re-admitted postoperatively; four for pain relief and two because of urinary retention. Of the day case patients, 91 (82.7%) and 56 (50.9%) had been seen for 6 week and 6 month review, respectively, at the time of analysis. Symptom scores were 6 (pre-operatively) vs 0 (postoperatively) (P < 0.01). 76/91 (83.5%) patients reviewed at 6/52 were asymptomatic. Conclusion, Stapled haemorrhoidopexy is a safe and effective procedure that can be carried out on selected patients on a day case basis. Complications are of a similar nature to excisional haemorrhoidectomy. [source]