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Riadh Daghfous

Publications and source records attributed to Riadh Daghfous.

11 recordsLinked to original sources
PubMed2006

[Risk factors of side effects of antituberculosis drugs].

The aim of this study was to determine the side effects of standard antituberculosis therapy with isoniazid, rifampicin, pyrazinamide and streptomycine in patients treated for tuberculosis. One hundred eighty nine patients with proven tuberculosis, who initially received standard antituberculosis therapy, were retrospectively studied. Begaud and coll's method of side effects drugs imputability elaborated in 1999 was used in our study. Side effects related to therapy were present in 31.7% of the studied population. Gastrointestinal side effect was the most common (13.2%), isoniazid, rifampicin and pyrazinamide were often incriminated. The significant risk factors of hepatotoxicity were female gender (OR : 10.59) and concomitant hepatotoxic drugs (OR 6). Chocleovestibular toxicity was associated significantly with female gender (OR : 8.03) and diabetes mellitus (OR : 6.13). Patients aged above 50, proved to be at risk for pyrazinomide intolerance and females for streptomycine. The study did not reveal any susceptibility to isoniazid and rifadine intolerance.

Adolescent↗
PubMed2005

[Drug tendon disorders].

Tendinitis is a rare adverse reaction described after drugs use. It's described with drug belonging to the same class. Physiopathology is still unknown. Fluoroquinolones especially pefloxacine, were the most incriminated. This drug induced tendinitis in older people aged more than 60 years. Approximatively one case out of five leads to tendon breaking off. The others lead to a favourable outcome after drug withdrawal. In three cases, tendinitis was described with statines, and concerned 2 men and 1 woman, aged more than 50 years. Simvastatine was suspected in two cases and the outcome was favourable in all cases after drug withdrawal. Other drugs, like corticosteroids, can exceptionally induce this side effect that can be serious. Consequences of drug tendinitis can then be dangerous and prescription of this class, and especially fluoroquinolones, must be cautions.

Adrenal Cortex Hormones↗
PubMed2005

[Isoniazid acetylation in a group of Tunisian patients. Report of 620 patients].

Isoniazid is a first line antituberculosis drug metabolized mainly in the liver by the Nacetyltransferase. There are differences between individuals in acetylation metabolism. Subjects are thereby characterized as being rapid or slow acetylators. The purpose is to study the distribution pattern of acetylation in patients with tuberculosis followed up at the teaching Hospital of La Rabta. The determination of acetylator phenotype was carried out on 620 tuberculosis patients during a period of 12 years. There were 483 men and 137 women with a median age of 40.3 years. The test was investigated before drug regimen administration at the dose of 5 mg/kg. A blood sample was taken three hours after the first administration. The determination of acetylation profile was worked out by Vivien hypothesis. In our population 391 were low and 229 were fast acetylators. The median dose recommended within the test was 3.04 mg/kg/day. 56% of our patients were initially receiving high dose of isoniazid. An increase in serum transaminase was initially observed in 60 patients among whom 47 slow acetylators. After dose adaptation, 53 patients had improved their biological abnormalities. The majority of Tunisian population seem to belong to slow acetylators modal. The frequency of hepatotoxicity suggests reducing the recommended dose of isoniazid from 5 to 3 mg/kg/day.

Acetylation↗
PubMed2003

[Halothane-induced hepatitis. 8 case reports].

Halothane (Fluothane) is a halogenic volatile anaesthetic used in therapeutic since 1956. His adverse effects are generally moderate with the exception of hepatitis that is usually severe and sometimes fatal. In our study, we analyze 8 cases of halothane-induced hepatitis, notified in the Centre National de Pharmacovigilance between 1994 and 1999 and validate according to B. Bégaud and collaborators method of imputability. It concerns 5 women and 3 men, aged between 26 and 65 years. The injury was cytolytic in 6 cases and cholestatic in the 2 others. It was fulminant in 3 cases of which 2 leaded to death. These injuries are usually graves, with an unforeseeable appearance and a hypothetical mechanism. In our opinion, a liver function control is necessary at the time of utilization of this drug.

Adult↗
PubMedDate not supplied

[Allergic reactions to paracetamol].

BACKGROUND: Paracetamol is an extensively used analgesic and antipyretic. Allergy to this drug is occasionally reported and is usually moderate. MATERIALS AND METHODS: We led a retrospective study of 119 cases of allergic reactions to paracetamol notified to the Tunisian centre of pharmacovigilance, between September 1990 and September 2000. These cases were validated according to the method of imputability of Bégaud et al. RESULTS: Our population comprised 64 women and 55 men, aged 1 month to 70 years. Antecedents of allergy or atopy were found in many cases, including 10 cases of allergy to paracetamol and 6 to salicylates. Paracetamol was self-administered in 50% of cases and taken with other drugs in 68% of cases. The type of lesions varied, the most frequent being urticaria (34.4%), macular and pustular eruption (30.2%) and fixed drug eruption (12.6%). Some reactions were serious, such as Lyell syndrome or anaphylactic shock. Resolution was favourable in all cases and paracetamol was definitively contraindicated for patients with scores of high or mild imputability. CONCLUSION: Allergy to paracetamol seems to be rare but not exceptional. Several risk factors seem to be important in triggering this side effect, particularly antecedents of allergy to this drug or to aspirin.

Acetaminophen↗