Abstract:
BACKGROUND:Evaluation of 24-hour collection accuracy is based on urinary creatinine excretion (UCr), usually using wide ranges indexed by weight. Equations that predict the expected UCr are also available. AIM:To generate an equation for estimating UCr in Chilean population and evaluate its performance in comparison to existing formulas. MATERIAL AND METHODS:A total of 464 24-hour urine collections from outpatients aged between 15 and 88 years old were used. Ninety percent of collections (n = 418) were randomly extracted to assess the association between absolute UCr values with sex, age, height and weight of participants. A formula was created to estimate the 24-hour UCr using a multiple linear regression model. In the remaining 10% of urine collections (n = 46), the performance of this formula and others reported in the literature were tested. RESULTS:Age, sex and weight were significantly associated with 24-hour UCr values. The new equation was able to predict UCr values with a similar accuracy than CKD-EPI and Walser equations and outperformed other equations. CONCLUSIONS:Our equation developed with Chilean values predicts 24-hour UCr values accurately.
journal_name
Rev Med Chiljournal_title
Revista medica de Chileauthors
Huidobro Espinosa JP,Sepúlveda RA,Muñoz GMdoi
10.4067/S0034-98872020000600734subject
Has Abstractpub_date
2020-06-01 00:00:00pages
734-739issue
6eissn
0034-9887issn
0717-6163pii
S0034-98872020000600734journal_volume
148pub_type
杂志文章abstract:BACKGROUND:Exercise EKG is used as the test of choice in the diagnosis of coronary artery disease. Classical parameters are angor and ST depression representing myocardial ischemia. AIM:To correlate exercise EKG parameters with SPECT 201Thallium to know their likelihood ratios for ischemia. PATIENTS AND METHODS:Two h...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:
更新日期:1998-05-01 00:00:00
abstract:BACKGROUND:Burkitt lymphoma has a low incidence, is highly aggressive, may be endemic, sporadic or associated with immunodeficiency and it has a high frequency of extranodal involvement. Overall and relapse free survival in HIV patients is 72 and 71% respectively. However, the current protocol in Chile considers a posi...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:10.4067/S0034-98872015001200001
更新日期:2015-12-01 00:00:00
abstract::The association of hyperthyroxinemia and euthyroidism is frequent and characterized by high plasma thyroxin concentrations, normal TSH values and absence of clinical signs of hyperthyroidism. We report an asymptomatic 28 years old male presenting with a serum total plasma thyroxin of 18.5 micrograms/dl (N 6.1-12.5), a...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:
更新日期:1999-02-01 00:00:00
abstract:BACKGROUND:There is consensus in promoting the selective use of glucocorticoids (GC) in the peri-operative period of transsphenoidal surgery (TE) for pituitary adenomas (PA). AIM:To evaluate the safety of a selective glucocorticoid administration protocol and the usefulness of immediate postoperative cortisol levels a...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:10.4067/S0034-98872014000900004
更新日期:2014-09-01 00:00:00
abstract::Latrodectism, produced by the bite of Latrodectus spiders, is worldwide distributed, occurs in hot seasons, and affects mostly men when carrying out agricultural activities. The main symptoms are muscular pain and tremors, profuse perspiration, increased lacrimal, nasal and salival secretions, and hypertension. Sympto...
journal_title:Revista medica de Chile
pub_type: 杂志文章,评审
doi:
更新日期:2003-04-01 00:00:00
abstract::A serologic study for prevalence of Chagas infection was performed in Salamanca, Northern Chile. Indirect immunofluorescence and indirect hemagglutination reactions were used in samples from 1529 females and 698 males representing 10% of the population. A total of 499 positive results were obtained. The incidence of i...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:
更新日期:1991-04-01 00:00:00
abstract::Although the use of cadaveric split or living donor liver transplantation is a valid option for liver transplants, they have several complications, being the "small-for-size syndrome" one of the most frequent. This entity is mainly due to the incapacity that the graft has to meet the blood drainage demands. We report ...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:/S0034-98872009000700009
更新日期:2009-07-01 00:00:00
abstract:BACKGROUND:Poor oral health status may have an impact on the health status of patients with chronic renal failure. AIM:To describe the oral health status of a group of Brazilian patients with chronic renal failure. MATERIAL AND METHODS:Retrospective review of the medical records of patients with chronic renal failure...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:/S0034-98872008000600008
更新日期:2008-06-01 00:00:00
abstract:BACKGROUND:Subacute combined degeneration is a clinical manifestation of vitamin B12 deficiency, that we observe with unusual frequency. AIM:To report a series of eleven patients with subacute combined degeneration. PATIENTS AND METHODS:Retrospective analysis of 11 patients hospitalized in a public hospital in Santia...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:10.4067/s0034-98872004001100006
更新日期:2004-11-01 00:00:00
abstract::To measure the proportion, reasons and frequency of battering and punishment, we surveyed seventh and eight grade children coming from a low and middle income area, state funded school (n = 84) and from a payed, private and catholic school (n = 98). Of children coming from the payed school, 67% lived with both parents...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:
更新日期:1994-08-01 00:00:00
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journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:
更新日期:2001-01-01 00:00:00
abstract:BACKGROUND:High calorie foods, especially high in sugar and sodium may have an addictive potential. Experimental rats are able to develop symptoms and neurochemical changes, comparable to those observed in drug abuse, when they are exposed intermittently to sucrose. AIM:To evaluate the association between nutritional ...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:10.4067/S0034-98872015000500006
更新日期:2015-05-01 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::Using the social survey technique, a random sample of 464 students from the Universidad Austral answered a structured questionnaire about behavior and attitudes towards sex. Results show that the majority of students have had sexual experiences. Men and women differ significantly in motivations and age at the start of...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:
更新日期:1993-02-01 00:00:00
abstract:BACKGROUND:Vildagliptin is a dipeptidyl peptidase IV inhibitor (DPP4i). Its efficacy and safety of DPP4i in Chilean real life type 2 diabetic (T2D) patients is not well known. AIM:To assess the safety profile and effectiveness of 12 weeks of treatment with Vildagliptin for glycemic control in T2D Chilean patients with...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:10.4067/S0034-98872015000100008
更新日期:2015-01-01 00:00:00
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journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:10.4067/s0034-98872005000300001
更新日期:2005-03-01 00:00:00
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journal_title:Revista medica de Chile
pub_type: 杂志文章,评审
doi:/S0034-98872009001200012
更新日期:2009-12-01 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::One thousand women hospitalized at a maternity were surveyed after their delivery or abortion about their first sexual intercourse and pregnancy. Mean age at the first sexual intercourse was 18.7 years and only 9.2% used a contraceptive method in spite that 20% were not willing to become pregnant. The mean age of sexu...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:
更新日期:1995-07-01 00:00:00
abstract:BACKGROUND:Adequate management of high blood pressure (HBP) and Type 2 Diabetes (DM2) is a challenge to the healthcare system in Chile. AIM:To evaluate the effectiveness of a case management (CM) approach to manage HBP and DMII at Primary Healthcare (PHC) level, headed by healthcare technicians with the supervision of...
journal_title:Revista medica de Chile
pub_type: 杂志文章,多中心研究
doi:10.4067/S0034-98872018001101269
更新日期:2018-11-01 00:00:00
abstract:BACKGROUND:We report a 35-year-old female patient with a one year history of a pustular and painful erythematous dermatitis, located in great folds, pubis and abdomen. She was evaluated in primary health care, receiving antifungal treatment, antimicrobials, topical and systemic non-steroidal anti-inflammatory drugs, wi...
journal_title:Revista medica de Chile
pub_type: 杂志文章,评审
doi:10.4067/S0034-98872012000500012
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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
pub_type: 杂志文章
doi:
更新日期:1989-02-01 00:00:00
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journal_title:Revista medica de Chile
pub_type: 杂志文章,评审
doi:
更新日期:1998-04-01 00:00:00
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journal_title:Revista medica de Chile
pub_type: 杂志文章,评审
doi:
更新日期:2002-06-01 00:00:00
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journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:
更新日期:1999-03-01 00:00:00
abstract:BACKGROUND:The pathophysiological hallmark of the hepatorenal syndrome (HRS) is renal vasoconstriction. Doppler ultrasonography can be used to assess the vascular resistance in small renal intraparenchymal vessels through analysis of the Doppler waveform by a parameter termed Resistive Index (RI). We postulated that th...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:
更新日期:2002-02-01 00:00:00
abstract:BACKGROUND:Practice is essential in clinical training and can be carried out with simulations. The medical school of the University of Chile performs Objective Structured Clinical Examinations (OSCE) using standardized simulated patients for interns. AIM:To report the experience with OSCE in an environment with a high...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:10.4067/S0034-98872020000600810
更新日期:2020-06-01 00:00:00
abstract::Herpes simplex virus type 1 (HSV-1) is ubiquitous, neurotropic, and the most common pathogenic cause of sporadic acute encephalitis in humans. Herpes simplex encephalitis is associated with a high mortality rate and significant neurological, neuropsychological, and neurobehavioral sequels. HSV-1 infects limbic system ...
journal_title:Revista medica de Chile
pub_type: 杂志文章,评审
doi:/S0034-98872011000600013
更新日期:2011-06-01 00:00:00
abstract::Dr. Hernán Iturriaga is now President of Sociedad Médica de Santiago (Chilean Society of Internal Medicine) for the period 1995-1997. He received his M.D. title at the University of Chile in 1961 and his postgraduate training included a USPHS International Postdoctoral Research Fellowship at Mount Sinai School of Medi...
journal_title:Revista medica de Chile
pub_type: 传,历史文章,杂志文章
doi:
更新日期:1996-07-01 00:00:00
abstract:BACKGROUND:There are several diagnostic criteria for Metabolic Syndrome (MS) definition. AIM:To study their application in the Chilean general adult population. MATERIAL AND METHODS:We analyzed data from a random sub sample of 1.833 adults aged 17 years and older surveyed during the First Chilean National Health Surv...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:10.4067/s0034-98872010000600007
更新日期:2010-06-01 00:00:00