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Biomedical subjects

A Paredes

Publications and source records attributed to A Paredes.

At least 55 records · Page 3Linked to original sources
PubMed1992

[Borderline personality disorder: a comparative study between the clinical diagnosis and the Rorschach test].

Diagnostic concordance among Rorschach Test, clinical approach and DSM-III-R criteria for BPD is studied in an inpatient sample. A low degree of concordance among the three diagnostic systems was found. Two among 8 DSM-III-R criteria (physically self-damaging acts, and unstable-intense relationships) were the most discriminating symptoms for diagnosing BPD. The importance of considering the diagnostic efficiency of each DSM-III-R criterion is discussed. The most frequent concurrent diagnosis along with BPD were: Affective, and psychotic disorders. Their relationship is analyzed.

Adult↗
PubMed1992

[The significance of meconium in the intrahepatic cholestasis of pregnancy].

1. We studied 202 pregnant women who were porter of pregnancy intrahepatic cholestasis (CIE). They were attended at the High Risk Fetus Unity (FAR) at the Hospital Salvador Maternity. They were compared with a control group that was composed by 404 patients with normal pregnancy. 2. The patients with CIE presented three times more risk of having a newborn infant of preterm than the other group (p < 0.01) omitting the cesarean factor. 3. The patients with CIE but without an associated pathology, also didn't present a greater risk of having a newborn infant of below weight (< 2,500 g) neither a newborn infant with Apgar 1' > 7, at any gestational age and any way of delivery, than the control group. 4. The risk of having meconium is three times greater in the patients with CIE. This risk increases (Odds ratio = 4.87 with p < 0.01) when they present an associated pathology. 5. Analyzing separately the group of patients with CIE and meconium and comparing with the control group, we didn't find any difference between both groups in relation with the risk of below weight (< 2,500 g), Apgar 1' < 7 and strangely preterm delivery. 6. The presence of meconium in patients with CIE and without an associated pathology, disposing adequate monitoring of pregnancy and delivery, is postulate that it isn't in relation with bad new born infant prognostic.

Case-Control Studies↗
PubMed1991

A phase II trial of carboplatin in untreated patients with extensive stage small cell lung cancer.

Twenty-five untreated patients with extensive stage small cell lung cancer (ESSCLC) were treated with carboplatin (CBDCA) (500 mg/m2) given as a 24-hour infusion every 21 days. Thirteen patients responded for an overall response rate of 52% (95% confidence limits, 32% to 72%) with 3 complete responses (CR) (12%; 95% confidence limits, 0% to 25%). The median duration of response was 4.5 months. The median survival time was 8 months with three long-term survivors (12%) at 27, 33, and 43 months from the start of CBDCA treatment. Ninety-two courses of CBDCA were administered and one treatment-related death occurred. The main toxicity was myelosuppression. Grade 3 or 4 hematologic toxicity (hemoglobin level, less than 8 g/dl; granulocyte count, less than 1900/microliters; and platelet count, less than 49,000/microliters) was observed as follows: neutropenia in 7 courses (8%) and in 7 patients (28%), decreased hemoglobin level in 13 courses (15%) and in 7 patients (28%), and decreased platelet count in 10 courses (11%) all Grade 3 and in 8 patients (32%). This study demonstrates that at this dose and schedule CBDCA is a highly active drug in ESSCLC and it has tolerable toxicity.

Adult↗
PubMed1990

[Uncinariasis in younger infants].

In order to determine the main clinical and laboratory manifestations associated with the infestation by an uncinaria during the first year of life, 42 children were studied from a group hospitalized between the years 1980 and 1985 in whom the main diagnosis at their time of leave from the hospital was parasitosis. Over 31 patients (74%) showed some degree of malnutrition, and severe in 24 of them (57% of the total). Clinical manifestations were mainly related to anemia (paleness, lack of air) and active intestinal bleeding (enterorrhagia, melena). Among the laboratory findings, 80% of the patients were shown to have anemia and in 24% of them, their hemoglobin levels were less than 5 g/dL, in more than half the anemia was normocytic normochromic. Also included are particularities concerning uncinariasis in the breast-feeding infant and some differences with the infection in the adult.

Ancylostomiasis↗
PubMed1989

Renal disease in children with the acquired immunodeficiency syndrome.

Of 155 children with the acquired immunodeficiency syndrome (AIDS) whom we evaluated during a 6 1/2-year period, 12 were found to have proteinuria. Histologic studies of tissue from these 12 patients revealed a wide spectrum of renal disease: focal glomerulosclerosis in 5, mesangial hyperplasia in 5, segmental necrotizing glomerulonephritis in 1, and minimal change disease in 1. In addition, 6 had tubulointerstitial infiltrates, and 10 had glomerular dense deposits. All 10 renal specimens studied by electron microscopy contained endothelial tubuloreticular inclusions. The mean age (+/- SD) of the five patients with focal glomerulosclerosis when this condition was identified was 27 +/- 19 months. All five had severe renal failure within a year and died of other causes during the following year. The mean age of the five patients with mesangial hyperplasia was 38 +/- 31 months. Although none of them went on to have renal failure, four died within 8 +/- 7 months. Ten of the 12 patients with proteinuria died during the study period. Of the two surviving, one had mesangial hyperplasia and the other had minimal change disease. We conclude that children who acquire human immunodeficiency virus (HIV) infection during the perinatal period may have renal disease, most often focal glomerulosclerosis, as is the case in adults, or mesangial hyperplasia. Although 5 of the 12 children we studied had renal failure during the study period, none died of it. Further studies are needed to determine the correlations between clinical and pathological features and the pathophysiology of AIDS nephropathy in children.

Acquired Immunodeficiency Syndrome↗
PubMed1989

Methodological and ethical issues in alcohol research.

A commitment to scientific endeavors is an important part of the healing mission and public apprehension derived from this type of activity should not inhibit efforts to gain new knowledge. This imperative, however, does not dismiss the responsibility of every investigator to be deeply concerned with the morality of research activities and its impact on the health and welfare of the persons who participate as subjects. It was therefore considered important to review in this chapter some of the ethical principles that guide research, and in particular those relevant to research paradigms that incorporate the administration of alcohol (ethanol) as one of the variables.

Alcoholism↗
PubMed1989

Drug-free therapeutic community: a ten-year follow-up.

Two previous follow-ups of 50 patients at the Veterans Administration Medical Center, Brentwood Division, West Los Angeles, Residential Treatment Center (RTC), were conducted in 1974 and 1981. This is a 10-year follow-up of the same cohorts conducted in 1984. We were able to locate 11 out of 50 candidates. Of the 11 candidates located, interviews were completed on six candidates. Of the remaining five patients, two are decreased and the other three were unable to be interviewed. Of the six patients that were interviewed, three were drug-free since treatment; one has been drug-free for the last five years. The other two patients had been drug-free approximately six months. It would appear that follow-up studies of this particular group of subjects are very difficult and that the outcome of treatment is difficult to evaluate due to difficulty in locating this group of subjects over a long term.

Adult↗
PubMed1989

Anticipatory nausea and vomiting: prevalence and predictors in chemotherapy patients.

One hundred and seventy-five patients selected at random were prospectively studied. All patients were assessed at least after the first cycle of treatment by a self-report questionnaire which covered the occurrence of nausea and vomiting 24 before chemotherapy, as well as information regarding 22 clinical parameters. Forty-six (26%) patients developed anticipatory nausea. 'Intolerable' posttreatment vomiting and age under 45 were statistically significant parameters (p less than 0.05) in the multivariate analysis. Twenty-one (12%) of the 175 patients experienced anticipatory vomiting. Three variables, age under 45, 'intolerable' posttreatment vomiting and more than three cycles of treatment were found to be significant (p less than 0.05). The relative risk of developing anticipatory nausea and vomiting according to combination of significant clinical predictors in the multivariate analysis is proposed. Therefore recognition of these clinical predictors may serve as a marker for patients with high risk of presenting anticipatory nausea and vomiting, who may benefit from prophylactic behavioral approaches.

Adolescent↗
PubMed1988

Single-dose captopril scintigraphy in the neonate with renovascular hypertension: prediction of renal failure, a side effect of captopril therapy.

Baseline and single-dose captopril scintigraphy with 1 mCi of 99mTc-diethylenetriamine-pentaacetic acid (or 99mTc-glucoheptonate) was performed in 5 neonates with renovascular hypertension. Unilateral renal artery thrombosis and/or renal infarction was associated with severe impairment or lack of function on both studies (3 patients). Renal ischemia due to aortic thrombus manifested itself as lack of function only following captopril (2 patients). This approach predicted renal failure as a side effect of captopril therapy in 2 patients, 1 with unilateral (contralateral kidney infarcted) and the other with bilateral renal ischemia from aortic thrombus. Single-dose captopril scintigraphy may be a useful tool to predict tolerance to captopril therapy.

Acute Kidney Injury↗
PubMed1987

Cutaneous leishmaniasis in Bolivia. A study of 185 human cases from Alto Beni (La Paz Department). Isolation and isoenzyme characterization of 26 strains of Leishmania braziliensis braziliensis [corrected].

A clinical, serological, parasitological and therapeutic study of cutaneous leishmaniasis was carried out in a low sub-andean area (250-800 metres) of the La Paz Department, Bolivia. A team of seismic prospectors (350 workers) was surveyed for 12 months. Of 200 suspected cases of cutaneous leishmaniasis, 185 were serologically or parasitologically confirmed (incidence 52.8%). Those exposed to the greatest risk of infection were working in a virgin forest environment. Leishmanial organisms were isolated from 26 of the workers, either by in vitro cultivation or inoculation into hamsters. Isoenzyme characterization of the organisms by cellulose acetate electrophoresis showed them to be Leishmania braziliensis braziliensis [corrected]. The results of treatment of 168 patients with a pentavalent antimonial drug are also reported.

Animals↗