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Biomedical subjects

C Sáez Lavilla

Publications and source records attributed to C Sáez Lavilla.

5 recordsLinked to original sources
PubMed1999

[Human immunodeficiency virus (HIV) infection. The effectiveness of different diagnostic sequences in suspected pulmonary infection].

BACKGROUND: Assessment of different diagnostic sequences, in patients VIH(+) with a suspected pulmonary infection. METHODS: A cross-sectional descriptive study of 76 HIV(+) patients with suspected respiratory infection. It has been determined the validity and the pretest and post-test probability of the radiology (Rx) of thorax, 67Ga pulmonary scintigraphy and seric LDH levels, in order to design four different diagnostic algorithms. RESULTS: The diagnostic sequence Rx-LDH-scintigraphy with normal results involved an infection probability of 58.0%. Pathological Rx with successively normal LDH and scintigraphy, implied a likelihood of 97.0%. The LDH elevation in sequence with scintigraphy and Rx rose to 96.1% if both were abnormal and diminished to 8.3% if normal. CONCLUSIONS: The LDH elevation associated with the sequence of normal Rx and scintigraphy suggests a low infection likelihood. On the contrary, associated with pathological Rx and scintigraphy in sequence, practically assures the pulmonary infection.

AIDS-Related Opportunistic Infections↗
PubMed1999

[Molecular forms of PSA and differentiating between benign hypertrophy,carcinoma, and disseminated prostatic carcinoma. Correlation between two determination technics].

OBJECTIVE: To determine the correlation between two methods of measurement of total PSA (PSA-T) and free PSA (PSA-F) and the utility of the PSA-F/PSA-T ratio in patients with PSA-T between 4 and 10 ng/ml suspected as having prostate cancer. METHODS: Determinations of both PSA-T and PSA-F were performed using two different techniques in 91 patients suspected as having prostate cancer. Diagnosis was made on the findings of biopsy and the complementary tests. RESULTS: The following correlation was found for the two techniques: R = 0.99 and p < 0.05 for PSA-T, and R = 0.85 and p < 0.05 for PSA-F. For PSA-T values of 4-10 ng/ml and PSA-F greater than 25%, we found two patients with prostate cancer. For a PSA-F/PSA-T ratio less than 9%, all cases had prostate cancer. Three cases with bone metastasis had PSA-T values less than 10 ng/ml. CONCLUSIONS: A PSA-F/PSA-T ratio greater than 25% does not exclude malignancy in patients with a total PSA of 4-10 ng/ml; values less than 9% correspond to prostate cancer. Bone metastasis was found with both methods in patients with total PSA values less than 10 ng/ml.

Biopsy↗
PubMed1991

[Quality control of a computer system for repeat prescriptions].

The results of a quality control of a computer system of repeated prescription (RPS) and its basic features are reported. The selected quality criteria were the following: reduction of the bureaucratic index in the visit, correct fulfillment of the treatment order, health attention circuits of the RPS, and compliance of the patient with the treatment. The record of activities and a random sample of treatment orders (TO) were used as sources of data. Quality indexes near the optimal standard (OS) were achieved: bureaucratic index 12.8% (OS = 15%), fulfillment of the TO 94% (OS = 100%), specified dosages 86% (OS = 100%), prescriptions in out-of-date orders 7% (OS = 0%), use higher than calculated 1% (OS = 0%), and use lower than calculated 36% (OS = 25%). Finally, the corrective measures for the detected quality problems are proposed, and the advantages of the computer RPS are discussed.

Algorithms↗
PubMed1990

[Vaccination coverage in a pediatric population attended by a primary health care center].

It is hereby presented a quality control study of a systematic vaccination program developed in an urban primary care center. Target population were children between 0 and 8 years attended in the center. They were considered as having a correct vaccination coverage those cases in which it was possible to verify documented accomplishment of the local vaccination schedule. Out of the 538 children included in our study, 168 (31%) were founded not to have appropriate vaccination coverage evidenced in their clinical records, and their families were requested for an interview: 126 (75%) attended de appointment. In 93 of them it was founded a recording mistake, and 33 cases were verified as no correctly covered. Vaccination coverage rate was 86%, being inverse relationship between age and coverage rate. They are discussed corrective actions derived from the quality control.

Child↗