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Biomedical subjects

F Allaert

Publications and source records attributed to F Allaert.

7 recordsLinked to original sources
PubMed2001

[Hepavir, the first observational study of one cohort of patients treated with alpha-2a interferon, monotherapy. Evaluation of asthenia and its social consequences].

OBJECTIVES: The aim of this observational study in patients with chronic hepatitis C and treated with interferon alpha-2a was to assess 1) monitoring in everyday practice, 2) the acceptability of treatment and 3) the intensity of fatigue. METHODS: Three hundred and fifty four patients were enrolled by physicians in both teaching and general hospitals, or private practice. Before treatment, clinical, epidemiological, and virological data were collected as well as a self-evaluation of fatigue using a visual analogic scale. Clinical follow-up was assessed every 3 months during treatment and 6 months after the end of treatment and included an evaluation of fatigue and the number of workdays missed due to sickness. RESULTS: Two hundred and nineteen men and 135 women, mean age 45 +/- 13, were included. The epidemiological, histological and virological features of this group were similar to those patients usually treated for chronic hepatitis C. Before treatment, the mean measurement of fatigue was 41 on a scale from 0 (perfect form) to 100 (exhausted). Fatigue was unrelated to age, source of infection, biological activity, or histological score. It worsened in patients who stopped interferon after 3 or 6 months, but was stable in patients who continued treatment for 12 months. Fatigue decreased after the end of treatment and was unrelated to treatment response. The need to stop work was strongly related to the intensity of fatigue and the number of workdays missed due to sickness represented nearly two months out of three in 25% of active patients during the first quarter and in 15% of patients thereafter. 61% of patients self-injected interferon (mainly previous drug users) whereas 30% of patients used nurse care throughout treatment. CONCLUSION: This study not only provides a realistic evaluation of fatigue in patients with chronic hepatitis C, before, during and after treatment, but also highlights its social and economic consequences. It shows the need for further cost-effectiveness studies on new therapeutic strategies using combined treatments.

Absenteeism↗
PubMed2000

Anonymous statistical methods versus cryptographic methods in epidemiology.

Sensitive data are most often indirectly identifiable and so need to be rendered anonymous in order to ensure privacy. Statistical methods to provide anonymity require data perturbation and so generate data processing difficulties. Encryption methods, while preserving confidentiality, do not require data modification.

Journal Article↗
PubMed2000

Acute low back pain: predictive index of chronicity from a cohort of 2487 subjects. Spine Group of the Société Française de Rhumatologie.

UNLABELLED: Low back pain (LBP)-related disability involves patients with chronic outcome. OBJECTIVE: To identify the factors predictive of chronic evolution of acute LBP and to develop a predictive clinical index. PATIENTS AND METHODS: Prospective investigation of 2487 employed patients referred for their first consultation with acute LBP (less than eight days). Chronic evolution defined by persistence of symptoms, unchanged or worse, at seven weeks. A predictive index was developed according to a logistic regression model. RESULTS: One hundred fifty-five patients (6.2%) were considered to have unchanged or worsened LBP at the time of final evaluation, which was carried out on average 42 +/- 15 days after the initial visit, and were thus regarded as having a chronic outcome. When comparing patients with chronic outcome and the others, there were 25 elementary characteristics for which the degree of significance of the bilateral test was less than 0.01. They were introduced into a logistic regression model. Five parameters appeared to be related to chronic outcome: characteristics of current episode (isolated acute low back pain, acute exacerbation of chronic low back pain, sciatica), two daily living activity items, duration of certificate to remain off work and taking part in a sport. They were used to develop an easily applied index providing identification, as of the initial consultation, of the risk of chronic evolution. CONCLUSION: The early recognition of patients with LBP with high risk of chronic outcome can be achieved with an easily applied clinical index.

Activities of Daily Living↗
PubMedDate not supplied

[Ultrasonography during sclerotherapy].

The authors used a prospective study of 309 great saphenous veins to analyse, by Doppler and ultrasonography, the mechanism of sclerosis following sclerosing injections. These were administered at a maximum of 50mm from the sapheno-femoral junction using a protocol based upon five sessions. It was found possible to establish a close relationship between the quality of results and small calibre. Similarly, recurrence by early repermeation was generally secondary to a sclerosing reaction having caused thrombosis. Other changes were seen during or at the end of treatment, sometimes differing greatly from clinical findings. This type of sclerosing injection therapy provided more than 90% favourable responses to treatment after a follow-up period of 15.7 months. Analysis of other parameters may possibly enable even better definition of the treatment of this condition and its natural history.

Benzyl Alcohols↗
PubMedDate not supplied

[Isoflurane in spontaneous ventilation (in orthopedic surgery: comparison with halothane)].

Isoflurane and halothane, two anaesthetics agents have been compared. Forty young and healthy patients were divided into two randomly selected group. Each of them was anaesthetized either with isoflurane or with halothane. Anaesthesia was maintained with nitrous-oxide and dextromoramide. During induction, the ventilation was spontaneous. Blood-gas, ventilation rate and tidal-volume were studied before induction, during anaesthesia and at the end of the surgery. Statistical data show a higher PaCO2 and a lower pH with isoflurane. This was increased by dextromoramide. During induction, complications occurred more after than with halothane but the emergence was better.

Adolescent↗
PubMedDate not supplied

Nursing and medical care of pressure ulcers in hospitals in France.

The prevalence of pressure ulcers in hospitals in France is given, and the anatomical location of these ulcers is explored. The importance of establishing accurate stages for these wounds is also emphasized. Four methods of cost-effectiveness analysis are proposed and described: analysis of one case; analysis of one ward; analysis of care time; and analysis of one tetraplegic young man.

Aged↗