Abstract:
:The administration of an angiotensin-converting enzyme (ACE) inhibitor transitorily reduces the GFR in a kidney with renal artery stenosis, effect that can be ascertained with scintigraphic studies using ACE inhibitors. We evaluated the clinical usefulness of captopril renography (CR) in the diagnosis of renovascular hypertension (RVH) in 51 hypertensive patients in which this diagnosis was suspected. All subjects underwent angiography and RVH was diagnosed when renal artery stenosis exceeded 60%, there was lateralization of renal vein renin or there was a concordant clinical outcome. Renography was performed 15 minutes after Lasix administration, using Tc-99m DTPA, before and 60 minutes after the oral administration of 50 mg of captopril. The scintigraphic criteria for a positive test were a decreased split renal function, a delayed peak uptake, a decreased excretion of DTPA and a prolonged transit time. In three of 28 patients in whom angiography discarded RVH, CR was positive. In the 23 patients with confirmed RVH, CR was positive in 10 of 12 with unilateral stenosis, in 3 of 8 with bilateral stenosis and 1 of 3 with stenosis in a transplanted kidney. The overall sensitivity and specificity of the test for RVH was 60.9% and 89.2% respectively. There were no changes in blood pressure or adverse effects after captopril administration. We conclude that CR in RVH is useful to select patients for further studies (angiography) and to perform a functional interpretation of angiographic alterations.
journal_name
Rev Med Chiljournal_title
Revista medica de Chileauthors
Orellana P,Jalil R,Valdés F,Fava M,Olea E,Fernández MS,Valdés G,Contreras O,Fontbote Csubject
Has Abstractpub_date
1993-07-01 00:00:00pages
762-7issue
7eissn
0034-9887issn
0717-6163journal_volume
121pub_type
杂志文章abstract::The importance of inactivation of tumor suppressor genes in the development/progression of carcinomas of the uterine cervix is reviewed. It is well known that HPV-related oncogenes are strongly linked to cervical cancer. However, fewer studies have explored the occurrence of inactivation of tumor suppressor genes in t...
journal_title:Revista medica de Chile
pub_type: 杂志文章,评审
doi:
更新日期:1999-12-01 00:00:00
abstract::Autonomy is an inherent condition of every ethical act. This attribution is expressed, when decisions are made, as capacity. Physician-patient alliance is defied when there is a reasonable doubt of patients' ability to make a choice, an extraordinarily complex scenario. As a response, in the last few decades multiple ...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:10.4067/S0034-98872016001000014
更新日期:2016-10-01 00:00:00
abstract::Platelet Rich Plasma (PRP) is used in musculoskeletal lesion surgery, including muscle, bone, tendons and ligaments. PRP might accelerate the healing process and the integration of the graft, allowing an earlier return to sports activities of patients. PRP is obtained from autologous blood, which is centrifuged, obtai...
journal_title:Revista medica de Chile
pub_type: 杂志文章,评审
doi:10.4067/S0034-98872013001000011
更新日期:2013-10-01 00:00:00
abstract::Bronchogenic cysts are congenital malformations of the tracheo-bronchial tree usually located intrathoraxically. We report a 44 years old male with a bronchogenic cyst located exceptionally in the pre tracheal anterior cervical region, simulating a thyroid lesion. ...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:
更新日期:1999-08-01 00:00:00
abstract::Microbiology starts in Chile at the end of the XIXth century as part of the effort to develop basic sciences at the University of Chile Medical School. Publications by Vicente Izquierdo on gonorrheae and Alejandro del Río on the organisms of dysenteriae were pioneer works in this area. The field was progressively deve...
journal_title:Revista medica de Chile
pub_type: 历史文章,杂志文章
doi:
更新日期:1992-04-01 00:00:00
abstract:BACKGROUND:There is some information about wheeze characteristics in infants, however it is not clear whether the different wheeze patterns relates to prognosis and evolution during the first two years of life. OBJECTIVES:To characterize wheezing and spectral pattern of lung sounds in infants with acute bronchiolitis ...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:
更新日期:2002-07-01 00:00:00
abstract::Approximately 15% of patients with Wolff Parkinson White's syndrome who undergo electrophysiologic study have more than one accessory pathway. We describe the electrophysiologic testing and findings in 2 patients with multiple pathways. Identification of these is highly relevant since successful surgical therapy depen...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:
更新日期:1990-02-01 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
pub_type: 杂志文章
doi:
更新日期:1989-11-01 00:00:00
abstract::Augusto Orrego Luco born in 1848 and dead in 1933 in Valparaiso, was one of the greatest clinicians and researchers of chilean medicine during the late nineteenth and early twentieth century. Besides being a psychiatrist he contributed to literature, history, politics and medicine. He received his medical degree in 18...
journal_title:Revista medica de Chile
pub_type: 传,历史文章,杂志文章
doi:
更新日期:1996-01-01 00:00:00
abstract:BACKGROUND:CEA is widely used in the follow up of patients with colorectal carcinoma. AIM:To study the value of preoperative CEA as an independent prognostic factor in colorectal carcinoma. PATIENTS AND METHODS:Analysis of 373 operated patients (204 females, age range 21-92 years) with colorectal carcinoma and a mean...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:10.4067/s0034-98872004000600005
更新日期:2004-06-01 00:00:00
abstract::Arterial involvement in Behçet's disease (BD) is less common than venous lesions. The most commonly affected arteries are: the aorta, lower extremity arteries, mesenteric, femoral, coronary, renal, subclavian and pulmonary arteries. The rupture of pulmonary arteries is the main cause of death of patients with EB and t...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:10.4067/s0034-98872018000400528
更新日期:2018-04-01 00:00:00
abstract::The history, objectives and aims of this programme are described in detail. The principal goals achieved on anticonception, reproductive biology and abortion are analyzed, with special reference to the research done in Chile. The strengthening of research capabilities at national level was pointed out with special men...
journal_title:Revista medica de Chile
pub_type: 历史文章,杂志文章
doi:
更新日期:1998-07-01 00:00:00
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
pub_type: 杂志文章,评审
doi:
更新日期:1989-12-01 00:00:00
abstract::Doppler-duplex has been widely used to quantify blood flow. Nevertheless, its usefulness in assessing portal vein flow (PVF) has been questioned due to technical problems: vessel cross sectional area measurements, interobserver variability, and PVF changes related to physiological events. This study was aimed to measu...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:
更新日期:1991-05-01 00:00:00
abstract:BACKGROUND:Genetically programmed adult-type hypolactasia affects 56% of Chilean population. Ideally, diagnosis should be confirmed. AIM:To compare diagnostic yield of genetic test, hydrogen (H2) expiratory test and a validated symptomatic structured survey (SS). MATERIAL AND METHODS:Patients submitted to H2 test ans...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:10.4067/S0034-98872012000900001
更新日期:2012-09-01 00:00:00
abstract:BACKGROUND:Chronic obstructive pulmonary disease (COPD) has a relevant impact on health-related quality of life (HRQoL). Short Form 6 dimensions (SF-6D) quality of life tool allows researchers to calculate preference-based utilities using data from SF-12 or SF-36 questionnaires. AIM:To provide normative values of SF-6...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:10.4067/S0034-98872017000200001
更新日期:2017-02-01 00:00:00
abstract::The aim of this work was to study the knowledge, opinions and sexual behaviour of a sample of 464 students from the Universidad Austral de Chile. Results show that 78% of male and 41% of female students have had a sexual intercourse and that 78% of males and 72% of females with an active sexual life use contraceptive ...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:
更新日期:1994-01-01 00:00:00
abstract::Accreditation has acquired special relevance for the habilitation of professional practice, considering the proliferation of teaching institutions, the variety of training programs and the increasing amount of professionals requiring accreditation or revalidation of their titles. The internationalization of profession...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:
更新日期:1998-06-01 00:00:00
abstract::Renal failure secondary to effort rhabdomyolysis is uncommon. We report three males age 28, 37 (military sportsmen) and 44 years (sedentary obese), with this condition. Episodes occurred after a training session to run a triathlon, during the course of a mini marathon and during a rescue attempt of a drowning person. ...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:10.4067/s0034-98872006000200012
更新日期:2006-02-01 00:00:00
abstract::Specialists must be trained in properly certified university centers. There are established applicant selection programs and mechanisms and faculties maintain a favorable learning environment. The careful selection of teachers must be based in their personal attributes, their interest and dedication to academic work a...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:
更新日期:1995-05-01 00:00:00
abstract::Clinical pathways or structured multidisciplinary care plans are a tool to standardize clinical practice. The aim of this article is to describe and propose a methodology for the development of clinical pathways in a highly complex health institution. We used the guidelines of the European Quality of Care Pathway, whi...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:10.4067/S0034-98872020000901331
更新日期:2020-09-01 00:00:00
abstract::Docosahexanoic acid (C22:6, DHA) is a highly unsaturated omega-3 fatty acid that forms part of the central nervous and visual system structures. DHA is synthesized from its precursor, alfa-linolenic acid, that is also a omega-3 fatty acid and can be obtained from vegetable oils. Marine organisms, specially fish, are g...
journal_title:Revista medica de Chile
pub_type: 杂志文章,评审
doi:
更新日期:2001-10-01 00:00:00
abstract::Papillary serous carcinoma with low malignant potential, similar to those described in the ovary, can also originate in the peritoneum. Characteristically they show peritoneal spread without involvement of the ovary and, if present, it corresponds to a superficial implant similar to those seen in the rest of the perit...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:
更新日期:2000-02-01 00:00:00
abstract::Sixty-three patients with severe acute pancreatitis have been studied. Pancreatitis was associated with biliary tract disease in 23 patients (36.5%) and with alcoholism in 21 (33.3%). It occurred post-operatively in 9, and was associated with other conditions in 10. We evaluated the Ranson prognostic signs (RPS) with ...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:
更新日期:1991-06-01 00:00:00
abstract::The "Revista Medica de Chile" founded in 1872 is the second oldest medical journal in Latin America after the "Gaceta Medica de Mexico" (1864). Among medical journals in the world it is placed 24. It has been published monthly without interruption, except for the period January through December 1891, due to the revolu...
journal_title:Revista medica de Chile
pub_type: 历史文章,杂志文章
doi:
更新日期:1992-07-01 00:00:00
abstract::In 160 girls from low and middle socio-economic class of Santiago we correlated the age at menarque with genetic markers such as ABO blood group, Rh, MN, Xg, haptoglobins, Esterase D and Phosphoglucomutase. No significant association of these markers and age at menarque was found. ...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:
更新日期:1990-07-01 00:00:00
abstract:BACKGROUND:Patients on chronic hemodialysis have a lower immune response to vaccination against hepatitis B virus (HBV) than the general population. AIM:To identify factors that may interfere with immunization against hepatitis B virus (HBV) in Brazilian hemodialysis patients and analyze the evolution of the level of ...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:10.4067/S0034-98872012000700008
更新日期:2012-07-01 00:00:00
abstract:BACKGROUND:Central nervous system damage associated to HTLV-I does not limit itself to the spinal cord, but also involves subcortical structures, producing cognitive impairment and behavioral changes which eventually could conform a new form of subcortical dementia. AIM:To study cognitive changes in patients with HTLV...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:
更新日期:1999-04-01 00:00:00
abstract::A narrative review of the evidence regarding the role of inflammation in the pathophysiology of coronary heart disease and depression is presented. As a common pathogenic factor, inflammation could explain the frequent association of both diseases. We discuss the benefit of exercise and diet modifications in both cond...
journal_title:Revista medica de Chile
pub_type: 杂志文章,评审
doi:10.4067/s0034-98872020000200224
更新日期:2020-02-01 00:00:00
abstract::Garengeot's hernia corresponds to the presence of the appendix within a femoral hernia, associated or not with acute appendicitis. The diagnosis of this uncommon situation is usually done during surgery. Furthermore, the clinical presentation as necrotizing fasciitis is a rare condition. We report a 54 years old obese...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:10.4067/s0034-98872018000500660
更新日期:2018-05-01 00:00:00