abstract：:Congenital malformations of the spleen are rare. We report a patient with an ectopic spleen located in the left iliac fossa, which was excised in order to prevent severe complications such as torsion of the pedicle, rupture or infection. A second patient with idiopathic thrombocytopenic purpura presented with an acces...

journal_title：Revista medica de Chile

authors： Etcheverry R,Allamand JP,Guzmán G,Robinson MI

更新日期：1989-12-01 00:00:00

abstract：:We studied genetic polymorphism of isoniazid acetylation in 47 tuberculous patients treated with 4 drugs between Aug 1987 and Dec 1988. Inactivation of isoniazid was estimated from urine samples after administration of the drug (10 mg/kg). There were 18 slow and 29 fast acetylators. The frequency of the slow mutant ge...

journal_title：Revista medica de Chile

authors： Ligueros M,Cruz Coke R,Neira S,Saavedra H,Kramer V,Prieto JC,Gelman M,Saavedra A,Nuñez A,Pescio S

更新日期：1989-12-01 00:00:00

abstract：:Starting of from the notion that medicine presents a plurality of aims, it is proposed that it should be conceived as a "science of actions" rather than as a "science of objects". Health is not a neutral "object" that could be unambiguously defined and approached from any vantage point solely with the standards of a d...

journal_title：Revista medica de Chile

authors： Stepke FL

更新日期：1989-11-01 00:00:00

abstract：:We performed real time echotomographic studies in 203 patients with a clinical diagnosis of obstructive jaundice. All patients were operated on and a diagnosis of choledocholithiasis was established in 125. The same diagnosis had been made by echo in 69 of them for a 63% sensitivity rate. The specificity was 92% and t...

journal_title：Revista medica de Chile

authors： Arroyo A,Guerra M,Strauszer T

更新日期：1989-11-01 00:00:00

abstract：:We report the case of a woman with rapidly progressive IgA nephropathy. She was treated with pulse methylprednisolone sodium succinate (1 g/d for three days), cyclophosphamide, dipyridamole and aspirin. The rapid progression of renal failure was apparently halted after 6 months. ...

journal_title：Revista medica de Chile

authors： Duclos J,Sánchez B,Espinosa R,Opazo H

更新日期：1989-10-01 00:00:00

abstract：:We analyzed 1529 diabetic patients seen between 1959 and 1982 at a teaching hospital in Concepción, Chile. 116 of them were insulin dependent diabetics. Gestational diabetes was excluded. The 10 year actuarial risk of acquiring tuberculosis was 24.2% for insulin-dependent diabetics and 4.8% for the rest (p less than 0...

journal_title：Revista medica de Chile

authors： Olmos P,Donoso J,Rojas N,Landeros P,Schurmann R,Retamal G,Meza M,Martinez C

更新日期：1989-09-01 00:00:00

abstract：:Antibacterial potency of cephalosporins depends on inhibition (acylation) of one or more penicillin-binding proteins (PBP). Recently, reduced affinity of PBP for cephalosporins and other B-lactam agents has been found in some cases. Mechanism for these changes in affinity are analyzed in this review. ...

journal_title：Revista medica de Chile

authors： Garrido J,López F

更新日期：1989-09-01 00:00:00

abstract：:We compared 2 techniques for determination of plasma levels of phenytoin, liquid-gas chromatography (LGC) and homogeneous enzymatic immunoassay (EI) in samples from 72 patients receiving monotherapy with this drug. Determinations were also made in samples of normal plasma with known concentrations of phenytoin. Good c...

journal_title：Revista medica de Chile

authors： Estruch J,Galdames D,Varas S,Saavedra I

更新日期：1989-08-01 00:00:00

abstract：:Nucleolar organizer regions may be observed by colloidal silver stains. A considerable increase in the number of regions may be observed in tumors and other pathologic processes as an index of cellular proliferation. Among 20 studies in patients with gastric carcinoma we found a significantly greater number of nucleol...

journal_title：Revista medica de Chile

authors： Roa I,Araya JC,de Aretxabala X,Mauriz A,Cea M

更新日期：1989-08-01 00:00:00

abstract：:We investigated medical leaves of personnel at Temuco's hospital from 1986 to 1987. 57% of persons had at least one leave and 54% of these had 2 or more leaves. Women and paramedicals had more medical leaves. Most absences occurred in june, july, august (p less than 0.01). Most leaves were caused by respiratory diseas...

journal_title：Revista medica de Chile

authors： Silva CG,Baechler R

更新日期：1989-07-01 00:00:00

abstract：:We followed 50 type II diabetic patients undergoing various types of surgical procedures. Control of blood sugar was evaluated as percent of tests within an acceptable limit defined as 160 mg/dl in the preoperative period, 80-240 mg/dl in the early postoperative period and 80-120 mg/dl thereafter. Adequate control was...

journal_title：Revista medica de Chile

authors： Morales H,Maiz A,Arteaga A

更新日期：1989-07-01 00:00:00

abstract：:Beta 2 microglobulin is a low molecular weight protein integrating the light chain HLA antigens. Its serum concentration is increased in different neoplasias and in renal failure. Using solid phase RIA we determined the concentration of beta 2 microglobulin in plasma and spinal fluid of 57 healthy individuals and pati...

journal_title：Revista medica de Chile

authors： Rodríguez MA,Lira P,Foradori A,Grebe G

更新日期：1989-06-01 00:00:00

abstract：:A 19 yr-old female patient with the diagnosis of late onset adrenal hyperplasia was treated since age 15 with different glucocorticoid preparations and dosage schedules plus spironolactone. In spite of a very good response in terms of amelioration of their hirsutism she experienced cushingoid manifestations associated...

journal_title：Revista medica de Chile

authors： Contreras P,Rojas A,Vega I

更新日期：1989-06-01 00:00:00

abstract：:An analysis of the interaction of evolutionary factors such as migration, mutation, selection random drift, and consanguinity upon the genome of Easter islanders is attempted. As many primitive populations, the Easter islanders genome has at least 2/3 of genetic loci in an isogenic state. The HLA system is reduced; ot...

journal_title：Revista medica de Chile

authors： Cruz-Coke R

更新日期：1989-06-01 00:00:00

abstract：:We studied 501 prostitutes from the northern and eastern areas of Santiago in november and december, 1987. HIV infection was studied by the HIV antibody and also by HIV antigen. At that time no positive reactors were found. Prostitutes from the northern area were older, of a lower socioeconomic background and less pro...

journal_title：Revista medica de Chile

authors： Quero MS,Suárez M,Uribe J,Cerda P,Espoz H,Arroyave R

更新日期：1989-06-01 00:00:00

abstract：:A revolution is taking place in Medicine as a consequence of advances in biotechnology and informatics. The unraveling of the human genome with a description of chromosomal maps for all structural genes affords a new framework for the understanding of etiology, diagnosis and prevention of every disease. More than thre...

journal_title：Revista medica de Chile

authors： Cruz-Coke R

更新日期：1989-05-01 00:00:00

abstract：:Mirizzi syndrome is estimated to occur in about 1% of cases requiring urgent or elective biliary tract surgery. The key anatomic finding is extrinsic compression of the common duct by a stone located in the gallbladder or cystic duct. Among patients operated on in the last 12 years we have found 77 patients meeting cr...

journal_title：Revista medica de Chile

authors： Jiménez O,Palacios JM,Correa R,Rojas M,Lopez O

更新日期：1989-05-01 00:00:00

abstract：:Verapamil is a calcium channel blocker ideally suited for the treatment of A-V nodal reciprocating supraventricular tachycardia. Most types of ventricular tachycardia are refractory to treatment with verapamil since they depend on sodium channels. However, a few cases of recurrent ventricular tachycardia are refractor...

journal_title：Revista medica de Chile

authors： González R,Fajuri A,Arriagada C,Marchesse M,Serrat H

更新日期：1989-04-01 00:00:00

abstract：:Most studies of gastric transmucosal potential difference concern acute damage. We studied this phenomenon in 168 patients with different pathologic processes: erosive gastritis, duodenal and prepyloric ulcer, atrophic gastritis, gastric ulcer and normal controls. Ag-AgCl electrodes and Agar-KCl bridges were used to r...

journal_title：Revista medica de Chile

authors： Defilippi C,Morales A,Smok G,Angelo S

更新日期：1989-04-01 00:00:00

abstract：:Amiodarone is a benzofuranic derivative widely used in cardiologic practice because of its excellent antiarrhythmic properties. Due to its high iodine content, it interferes with thyroid physiology and can cause either hyper or hypothyroidism. Amiodarone-induced hyperthyroidism should be considered as a serious compli...

journal_title：Revista medica de Chile

authors： Pineda G,Meruane J,Valenzuela MA,Bianchi C

更新日期：1989-03-01 00:00:00

abstract：:This is the conference given by Jorge Mardones, Emeritus Professor of the University of Chile on the occasion of receiving the Juvenal Hernández award. A biographical trace of Professor Mardones scientific career and its motivations, including his relation to outstanding Chilean scientists is included. A remembrance o...

journal_title：Revista medica de Chile

authors： Mardones J

更新日期：1989-02-01 00:00:00

abstract：:From 1983 to 1987 we studied 30 patients with leukemia searching for chromosomal alterations. Cytogenetic studies of bone marrow showed an abnormal karyotype in 19 (67%). Seven out of 14 cases of acute leukemia presented different chromosomic alterations. The Philadelphia chromosome was found in 11 patients with chron...

journal_title：Revista medica de Chile

authors： Conte G,Torrens M,Larraín C,Be C,Daher V,Youlton R

更新日期：1989-02-01 00:00:00

abstract：:The september 1888 issue of the Journal contains an article by Luis Asta-Buruaga MD, "Ambulances in New York: a system to be instituted in Santiago. In addition to encouraging this project, the idea of establishing small hospitals in peripheral quarters of the city is discussed. Dr Asta-Buruaga was a graduate from Col...

journal_title：Revista medica de Chile

authors： Costa-Casaretto C

更新日期：1989-01-01 00:00:00

abstract：:The incidence of hepatitis, mumps, poliomyelitis, scarlet fever, pertussis and measles from 1954 to 1984 was studied from the annual records of infectious diseases. Fluctuations were evaluated by Fourier analysis. Periodic recurrency was detected for poliomyelitis, scarlet fever, pertussis and measles and was likely f...

journal_title：Revista medica de Chile

authors： Canals M,Martínez L,Firinguetti L

更新日期：1989-01-01 00:00:00

abstract：:We studied plasma lipoproteins in 2 groups of 50 women each, one with a high (A) and the other low socio-economic status (B). Age, caloric intake, energy output and weight for height relation were comparable in both groups. A significant difference was found in plasma levels of triglycerides (A = 138.9 vs B = 104.8 mg...

journal_title：Revista medica de Chile

authors： Albalá C,Villarroel P,Olivares S,Truffello I,Vio Del F,Andrade M

更新日期：1989-01-01 00:00:00

abstract：:Geographical inequalities arising in the death of children under 1 year are studied. Causes regarded as avoidable at the present moment and leading to death are determined and the 27 Regional Chilean Health Services are ranked from best to worse in levels of mortality using cluster analysis. Results show that: 1) t...

journal_title：Revista medica de Chile

authors： Solis F,Castillo B,Mardones G

更新日期：1982-04-01 00:00:00

abstract：:This article reports verbatim the National Development Plan for 1978-1983, issued by the Office of the President of the Chilean Republic, and by the Office of National Planning. The document states that an increase in population would be desirable; however, action toward such goal is to be taken by individual couples...

journal_title：Revista medica de Chile

authors：

更新日期：1979-06-01 00:00:00