Abstract:
AIM:To measure the impact of day care attendance on lower respiratory tract infections in children under two years old in two urban settings with different degrees of air pollution. SUBJECTS AND METHODS:A 26 week follow up, during fall and winter of 1991 and 1992, was performed to 98 children (48 attending day care and 50 controls) coming from Santiago, a city affected by severe air pollution and 95 children (46 attending day care and 49 controls) coming from San Felipe and Los Andes (villages with low air pollution). The incidence of lower respiratory infections was recorded by trained personnel and expressed as rates per 100 weeks of follow up. Day care settings in San Felipe and Los Andes were state funded whereas those from Santiago were private. All premises had wooden or plastic floors and smoking was forbidden. During the follow up years, no respiratory epidemics were recorded. RESULTS:The socioeconomic level of children from San Felipe and Los Angeles was better. Children from Santiago were more exposed to tobacco smoke. The highest incidence of lower respiratory infections was found in children attending day care in San Felipe and Los Andes (31.2 episodes/100 weeks of observation), closely followed by control and day care attending children from Santiago (28.7 respectively) and control children from San Felipe and Los Andes (18.2). CONCLUSIONS:Day care attendance in areas with low air pollution increases the risk of lower respiratory infections. Instead, in highly polluted areas, the infection rates do not increase.
journal_name
Rev Med Chiljournal_title
Revista medica de Chileauthors
Vargas Catalán NA,Díaz Amor P,Zuleta Quiroz A,López Bravo IM,Venegas Silva Vsubject
Has Abstractpub_date
1994-07-01 00:00:00pages
836-42issue
7eissn
0034-9887issn
0717-6163journal_volume
122pub_type
杂志文章abstract:BACKGROUND:Neonatal alloimmune thrombocytopenia (NAIT) is a result of fetomaternal incompatibility. Platelet destruction is caused by a maternal antibody directed against a fetal platelet antigen inherited from the father and lacking on the mother's platelets. The incidence and features of transplacental alloimmunizati...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:
更新日期:1997-12-01 00:00:00
abstract:BACKGROUND:Valsartan is an angiotensin AT1 receptor antagonist. Clinical studies have shown that this is an effective and well tolerated drug. AIM:To compare valsartan with other commonly used antihypertensives in a National multicentric study. MATERIAL AND METHODS:Between 1997 and 1998, a pharmacological surveillanc...
journal_title:Revista medica de Chile
pub_type: 临床试验,杂志文章,多中心研究
doi:
更新日期:2000-05-01 00:00:00
abstract:BACKGROUND:Demands on primary health care services in Chile are increasing. The staff perception of specific sources of tension at work is not known. This knowledge is necessary to avoid preventable health problems caused by distress. AIM:To identify specific work stressors in primary health care facilities and to exa...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:10.4067/s0034-98872006000400007
更新日期:2006-04-01 00:00:00
abstract::We are reporting a 37 year old male with severe oligozoospermia and a history of infertility for thirteen years and surgery for severe unilateral varicocele. The hormonal levels for FSH, LH and T, and karyotype were within the normal range. Multiplex PCR revealed the presence of a de novo microdeletion in the azoosper...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:
更新日期:2000-07-01 00:00:00
abstract::We report a 34-years-old male, with a history of hepatitis B and human immunodeficiency virus (HIV) infection that was admitted to the hospital with malaise, weight loss, frontal behavior and chest pain. Imaging studies showed two frontal cortical/subcortical nodules. A stereotactic cerebral biopsy showed reactive gli...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:/S0034-98872011000200012
更新日期:2011-02-01 00:00:00
abstract:BACKGROUND:Breast cancer will develop in one out of ten women during their lifetime. Early diagnosis has increased in recent years. AIM:To describe a population of women with breast cancer stage T1N0M0. To analyze radiation therapy toxicity and to evaluate treatment results. MATERIAL AND METHODS:Retrospective review ...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:10.4067/s0034-98872007000400003
更新日期:2007-04-01 00:00:00
abstract::In biomedical measurement, comparisons between two instruments or between a new instrument and the gold standard is commonly needed to evaluate the reliability and validity of the instruments. Such studies are frequently analyzed using statistics that are inappropriate for studying concordance. This article reviews th...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:
更新日期:1997-04-01 00:00:00
abstract::Aneurysmal bone cysts are benign fibro osseous lesions, rarely present in maxillary region. We report the CT and morphological findings of aneurysmal bone cyst of the maxilla in a 15 years old female. The patient was subjected to a maxillectomy, preserving the orbit floor. The postoperative evolution has been uneventf...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:10.4067/s0034-98872005001100012
更新日期:2005-11-01 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:BACKGROUND:Secondhand smoke (SHS) is an established cause of morbidity and mortality among non-smokers. The workplace is an important source of exposure, especially among workers of restaurants, bars and nightclubs. AIM:To estimate the daily occupational exposure to SHS among non-smoking workers of bars and restaurant...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:/S0034-98872010001300007
更新日期:2010-12-01 00:00:00
abstract::Do transsexual people in Chile have a right to have their gender identity or their sex reassignment legally recognized? The absence of any legislation on gender identity or transsexualism could lead us to believe that it is not the case. However, a quantitative review of decisions issued by Chilean courts during the l...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:10.4067/S0034-98872015000800008
更新日期:2015-08-01 00:00:00
abstract:BACKGROUND:Mortality caused by cardial gastric cancer in Chile, is increasing. Previously we demonstrated an association between Epstein Barr virus and this specific location of gastric cancer. AIM:To perform a clinical and molecular characterization of cardial gastric cancer associated to Epstein Barr virus. MATERIA...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:10.4067/s0034-98872005000700001
更新日期:2005-07-01 00:00:00
abstract::Massive pulmonary embolism (PE) is associated with high mortality. There is still a broad assortment of severity classifications for patients with PE, which affects the choice of therapies to use. The main clinical criteria for defining a PE as massive is systemic arterial hypotension, which depends on the extent of v...
journal_title:Revista medica de Chile
pub_type: 杂志文章,评审
doi:10.4067/S0034-98872013000400010
更新日期:2013-04-01 00:00:00
abstract::We describe the clinical features and immunophenotype of 500 children and 131 adults with acute lymphoblastic leukemia (ALL), diagnosed between 1984 and 1993. Cases were classified, according to immunophenotype in B-cell ALL with three subtypes (pro-B or null, common and B) and T-cell ALL. Among children, common ALL a...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:
更新日期:1996-03-01 00:00:00
abstract:BACKGROUND:Measuring the carbon footprint (CF) makes it possible to estimate the contribution of clinical activity to global warming. AIM:To measure the emitter components of CO2 equivalents (CO2e) at the Hospital Base, Puerto Montt (HBPM). MATERIAL AND METHODS:Descriptive study with data collected retrospectively be...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:10.4067/s0034-98872018001201384
更新日期:2018-12-01 00:00:00
abstract::The echocardiographic identification of cardiac tumors as cause of embolic episodes is infrequent, and the finding of multiple papillary fibroelastoma is even less common. We report a 70 years old female with a history of a rheumatic mitral valve lesion, subjected to a commissurotomy in 1970. She was admitted with a c...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:
更新日期:2001-09-01 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::This editorial emphasizes the descriptive character of two of the most widely employed psychiatric diagnostic systems currently in use: DSM-IV and ICD-10. While they cannot be deemed atheoretical, they strive for neutrality and propose a nomenclature devoid of derogatory connotations. It is contended that the lowered ...
journal_title:Revista medica de Chile
pub_type: 社论
doi:
更新日期:2000-07-01 00:00:00
abstract::This paper undertakes an analysis of the scientific criteria used in the diagnosis of death and underscores the importance of intellectual rigor in the definition of medical concepts, particularly regarding such a critical issue as the diagnosis of death. Under the cardiorespiratory criterion, death is defined as "the...
journal_title:Revista medica de Chile
pub_type: 杂志文章,评审
doi:10.4067/s0034-98872004000100015
更新日期:2004-01-01 00:00:00
abstract:BACKGROUND:Aortic valve stenosis is the most prevalent valvulopathy in the elderly, but it is frequently undertreated. AIM:To assess early and long term results of valve replacement with bioprostheses in patients 70 years old or older with aortic stenosis. PATIENTS AND METHODS:A review of the database of the Cardiova...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:/S0034-98872011000200002
更新日期:2011-02-01 00:00:00
abstract:BACKGROUND:A high proportion of women consulting for depression have a history of childhood abuse and trauma. AIM:To compare the efficacy and costs associated with a treatment that enquires directly into childhood trauma and understands present interpersonal difficulties as a compulsion to repeat the traumatic past, v...
journal_title:Revista medica de Chile
pub_type: 杂志文章,随机对照试验
doi:/S0034-98872010000400006
更新日期:2010-04-01 00:00:00
abstract:BACKGROUND:Toxic epidemial necrolysis (TEN) is an acute adverse drug reaction, that has an unpredictableprogression and a 30% mortality. The incidence of TEN in the general population is approximately 0.4 to 1.2 cases/million/year. It is characterized pathologically by keratinocyte apoptosis which leads to epidemial de...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:/S0034-98872009000300009
更新日期:2009-03-01 00:00:00
abstract:BACKGROUND:Endometriosis affects at least 15% of infertile women. The diagnosis is made by direct visualization of implants either at laparoscopy or laparotomy. Elevation of plasma CA-125 levels has been associated with the presence of endometriosis. AIM:To search for a correlation between CA-125 and the presence of e...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:
更新日期:2003-04-01 00:00:00
abstract::Between January 1980 and December 1990, 16 patients with acute mitral insufficiency were operated on an emergency basis at our institution. They represented 1.8% of all mitral surgical cases. All of them were in acute pulmonary edema and 7 in cardiogenic shock. The etiology was ischemic in 6, degenerative in 4, infect...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:
更新日期:1993-04-01 00:00:00
abstract:BACKGROUND:Recent data suggest an increase in tuberculosis (TB) incidence in Chile. AIM:To evaluate recent epidemiological trends, geographic extension and potential factors associated with TB reemergence in Chile. MATERIAL AND METHODS:Data analysis from official sources and trend analysis. RESULTS:TB incidence rate...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:10.4067/S0034-98872019000801042
更新日期:2019-08-01 00:00:00
abstract::Hospitalization and death due to heart failure and cardiogenic shock is frequent and currently is increasing among the adult population. Although cardiac transplantation is the most effective treatment in patients with end-stage heart failure, its availability is limited. While waiting for transplantation, some patien...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:10.4067/s0034-98872006000800011
更新日期:2006-08-01 00:00:00
abstract::Bacteria have developed sophisticated and successful genetic mechanisms to evade the action of antimicrobials. Bacterial multiresistance has caused serious problems in the treatment of nosocomial infections. Integrons and gene cassettes are considered the main genetic elements in the evolution of plasmids and transpos...
journal_title:Revista medica de Chile
pub_type: 杂志文章,评审
doi:10.4067/s0034-98872004000500013
更新日期:2004-05-01 00:00:00
abstract:BACKGROUND:The ras gene family (H-ras, N-ras and K-ras) are oncogenes that mutate frequently in human cancer, specially in tumors of the biliary tract and pancreas. AIM:To determine the frequency of K-ras gene codon 12 mutation in pancreatic and biliary tumors. MATERIAL AND METHODS:Samples of 35 gallbladder, 15 ampul...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:/S0034-98872005001200004
更新日期:2005-12-01 00:00:00
abstract:BACKGROUND:Recent studies in mice have demonstrated that the Msx-1 homebox gene is implicated in cleft palate. Thus, it has been suggested that its human homologue, MSX1 (HOX-7), located in chromosome 4 could be involved in the etiology of non syndromic cleft lip palate. AIM:To study the linkage between non syndromic ...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:
更新日期:1998-07-01 00:00:00
abstract:BACKGROUND:Despite non absorbable antibiotics and neomycin may have antagonistic effects on intestinal bacterial environment, both have synergistic effects in the treatment of hepatic encephalopathy. This could be due to their action on different enteric flora or a neomycin induced carbohydrate malabsorption. AIM:To i...
journal_title:Revista medica de Chile
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:1994-04-01 00:00:00