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Biomedical subjects

E Vargas Castrillón

Publications and source records attributed to E Vargas Castrillón.

8 recordsLinked to original sources
PubMed1999

[Adverse drug reactions in the Spanish medical bibliographic literature: a comparison of 3 periods].

BACKGROUND: A quantitative and qualitative assessment of reports on suspected adverse drug reactions (ARD) in Spanish medical literature was carried out. MATERIALS AND METHODS: The periods analysed were 1972-1974, 1986-1988 and 1992-1994, and the medical journals were Anales de Medicina Interna, Medicina Clínica and Revista Clínica Española. We selected all articles including specific information on suspect ADR. RESULTS: The percentage of articles has increased considerably (1972-1974: 2.1%, 1986-1988: 5.7%, and 1992-1994: 8.2%). In spite of this growth, the qualitative data studied have not significantly improved. CONCLUSIONS: It is necessary to device some mechanism in order to improve ADR reporting.

Bibliographies as Topic↗
PubMed1991

[Acetylation polymorphism in lung cancer].

The acetylation phenotype was determined, by means of sulfamethazine measurement, in 87 patients (83 male) with confirmed bronchogenic carcinoma and in 93 healthy control patients (41 male) of equal ages. 48 patients and 54 controls were classified as being "slow acetylators" (Ch2 n.s.) When the persons were individually analysed by phenotype, it was confirmed that the patients showed a significantly lower rate of acetylated sulfamethazine than the control group (p less than 0.02), owing to the poor acetylation of patients with small-cell lung cancer. This difference should be confirmed by more detailed pharmacokinetic studies before regarding it as a possible interference of paraneoplasic type. The polymorphism acetylator cannot be considered a genetic marker related to the risk of having lung cancer.

Acetylation↗
PubMed1990

[Almitrine: a peripheral respiratory stimulant in chronic obstructive pulmonary disease].

Almitrine dimesylate is a peripheral respiratory stimulant which is effective both on long and short term treatment of chronic obstructive lung disease. The individual therapeutic response, however, is very variable and approximately 25% of patients might not respond to treatment. The recommended doses are 50-100 mg per day during two months, followed by a resting month. Higher doses or longer treatments could provoke high serum levels which in turn would increase the risk of pulmonary hypertension and peripheral neuropathies. Almitrine is not commercialized in Spain as a single drug or for the cited indications.

Almitrine↗
PubMedDate not supplied

[Use of non-conventional amphotericin B at the San Carlos Clinical Hospital].

BACKGROUND: Amphotericin B is the treatment of choice for systemic fungal infections, however, its clinical usefulness is limited by its toxicity. The lipid formulations appear to be equally effective and safer, but are more costly. The increase in the consumption of, and expenditure on these formulas led us to undertake a study in order to identify their profile of use (quantitative and qualitative) and to assess the financial repercussions when used inappropriately. METHODS: A set of rules were developed for the use of amphotericin B, and the quality of the prescription of non-conventional amphotericin B (amphotericin B notC) was evaluated retrospectively together with the financial repercussions of its inappropriate use. RESULTS: In 54% of the treatments studied, a poor selection of amphotericin B was made; in 3.5%, the use of amphotericin B was not indicated. The excess expenditure derived from the inappropriate use amounted to 42 million pesetas, 35% of the total expenditure on medicines; the expenditure due to unnecessary prescription was 1,720,327 pesetas. CONCLUSIONS: The retrospective evaluation has shown that there is a high percentage of treatments that do not conform with the recommendations contained in the prescription rules. The holding of information sessions would assist in achieving a more efficient selection of the amphotericin B notC; this would improve prescription quality, which might also deliver significant financial savings.

Amphotericin B↗
PubMedDate not supplied

[Changes in the pattern of use of non-conventional amphotericin B after the implementation of a training intervention at the San Carlos Clinical Hospital of Madrid].

BACKGROUND: Amphotericin B is the treatment of choice for systemic fungal infections. Among the different AB formulations available, the lipid forms appear to have a better profile of reliability, however, their cost is noticeably higher. In 1999 (pre-initiative period) an evaluation of the quality of the prescription of these preparations was made in our hospital, which revealed that they were not being used to best advantage and were responsible for generating a significant unnecessary expenditure. As a result of this, an information initiative was implemented with respect to the prescribing physicians for the purpose of reducing the inappropriate use of AB. METHOD: The quality of 100 prescriptions was evaluated prospectively, according to the standards of use of Amphotericin B established in the hospital. Following each evaluation, a pharmacologist personally handed over to each prescribing physician a set of rules governing the use of the Amphotericin B, discussing the indication and recommending the best alternative in each case. In order to measure the impact of this initiative, the appropriateness of the prescriptions during this period was compared with the pre-initiative period. RESULTS: The percentage of inappropriate prescriptions dropped from 58% to 21% following the implementation of the initiative. Likewise, a 33-million-peseta reduction in the total expenditure was achieved in 15 months as well as a savings of 24 million in inappropriate prescriptions. CONCLUSIONS: The information initiative improved the quality of the prescribing of preparations of Amphotericin B associated with lipids and considerably reduced the unnecessary expense associated with Amphotericin B misuse in our hospital.

Amphotericin B↗