Abstract:
BACKGROUND:Obstructive sleep apnea syndrome (OSA) is an important cause of morbidity and mortality in adults. AIM:To evaluate the diagnostic value of clinical features and oximetric data to screen for obstructive sleep apnea before performing polysomnograpy or respiratory polygraphy. MATERIAL AND METHODS:We studied 328 consecutive adult patients referred for snoring or excessive daytime sleepiness to a sleep clinic in whom a standardized questionnaire and the Sleepiness Epworth Scale were performed and body mass index (BMI), cervical circumference (CC), and nocturnal oximetry were measured. RESULTS:Fifty three percent (n = 173) had evidence of clinically significant OSA (apnea/hypopnea index (AHI) > 15 events/h). Patients with OSA were more likely to be male, obese (BMI ≥ 26 kg/m²), smokers, to have a thick neck (CC > 41 cm), and to have a significant greater prevalence of relative reported apneas and excessive daytime sleepiness, as determined by Epworth scale. Male gender (Odds ratio (OR): 4.00; 95% confidence intervals (CI): 1.59-10.0, p = 0.003), BMI ≥ 26 kg/m² (OR: 3.68; 95%CI: 1.59-8.49, p = 0.002), smoking (OR: 2.29; 95% CI: 1.17-4.47, p = 0.015), Epworth index > 13 (OR: 2.65; 95% CI: 1.35-5.23, p = 0.005) and duration of symptoms over 2 years (OR: 2.35; 95% CI: 1.20-4.58, p = 0.012) were significant independent predictors of OSA. In nocturnal oximetry, the lowest SpO2 (SpO2 min) and the length of registries below 90% (CT-90) were independent predictors of OSA and both correlated significantly with AHI (r = -0.49 and r = 0.46 respectively, p < 0.001). CONCLUSIONS:No single factor was usefully predictive of obstructive sleep apnea. However, combining clinical features and oximetry data may be appropriate to detect clinically significant OSA patients.
journal_name
Rev Med Chiljournal_title
Revista medica de Chileauthors
Saldías P F,Jorquera A J,Díaz P Odoi
/S0034-98872010000800001subject
Has Abstractpub_date
2010-08-01 00:00:00pages
941-50issue
8eissn
0034-9887issn
0717-6163pii
S0034-98872010000800001journal_volume
138pub_type
杂志文章abstract:BACKGROUND:Teaching practice is one of the most complex topics of the training process in medicine and other health care careers. The Teaching Practices Questionnaire (TPQ) evaluates teaching skills. AIM:To assess the factor structure and internal consistency of the Spanish version of the TPP among health care teacher...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:10.4067/S0034-98872016000600015
更新日期:2016-06-01 00:00:00
abstract::We report a 56 years old male patient presenting with a sympathetic denervation of the right upper limb due to an apical lung cancer. Vasomotor paralysis of the limb was objectively documented with a contact termography. The clinical presentation of this patient was unusual, considering that the alteration occurred wi...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:
更新日期:1995-05-01 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::Thyroid disfunction in the aged is often misdiagnosed either due to scanty symptoms, masking by other ailments or because function tests can be altered by extrathyroid causes such as chronic diseases, drugs or undernutrition. We surveyed 93 patients from 60 to 104 years old (73 females) living in geriatric homes. Most...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:
更新日期:1990-04-01 00:00:00
abstract:BACKGROUND:Sepsis-induced acute kidney injury (AKI) is an early and frequent organ dysfunction, associated with increased mortality. AIM:To evaluate the impact of macrohemodynamic and microcirculatory changes on renal function and histology during an experimental model of intra-abdominal sepsis. MATERIAL AND METHODS:...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:10.4067/S0034-98872014000500001
更新日期:2014-05-01 00:00:00
abstract:BACKGROUND:The absence of lymph node involvement (N0) in gastric cancer is associated with a better survival. However some N0 gastric tumors still have a bad prognosis. AIM:To study demographic and morphological variables associated with prognosis in N0 gastric carcinoma. MATERIAL AND METHODS:Review of pathological r...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:/S0034-98872011000400003
更新日期:2011-04-01 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::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::We studied 60 females using either intrauterine device or taking oral contraceptive pills. Hemoglobin, serum iron, total iron binding capacity and saturation of transferrin were determined before and 4 and 10 months after starting a responsible paternity program. Women with a basal hemoglobin level below 12 g/dl were ...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:
更新日期:1990-05-01 00:00:00
abstract::Acute coronary syndromes without ST segment elevation (Non-Q-Infarction and unstable angina) share a common pathophysiology, have no indication of thrombolysis, and should not routinely be catheterized on an emergency basis on admission. They should be put in bed rest, given anti-ischemic medications, aspirin and hepa...
journal_title:Revista medica de Chile
pub_type: 评论,社论
doi:
更新日期:1998-11-01 00:00:00
abstract:BACKGROUND:All winters, there is an increase in the number of pediatric consultations, associated to three factors: cold weather, air pollution and respiratory virus epidemics. AIM:To study the influence of these three factors in the demand for pediatric consultations between March and September, in an area of Metropo...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:
更新日期:1999-09-01 00:00:00
abstract::Protective immunity against rotavirus infection is directed against antigenic epitopes on the outer capsid proteins VP7 and VP4. The aim of this study was to characterize the VP7 and VP4 antigenic types circulating in different hospital areas of Santiago, Chile, over different time periods. Between April 1993 and Apri...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:
更新日期:1995-05-01 00:00:00
abstract:BACKGROUND:There is paucity of information about viral etiology of community acquired pneumonia in adults. AIM:To investigate the viral etiology of pneumonia among hospitalized patients. MATERIAL AND METHODS:All adults with pneumonia that were hospitalized were prospectively enrolled at Puerto Montt hospital. A micro...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:10.4067/S0034-98872012000800003
更新日期:2012-08-01 00:00:00
abstract:BACKGROUND:Intensive medicine is especially expensive and requires an efficient management. AIM:To measure the real costs of diseases treated in an intensive care unit and compare them with the costs assigned by the Chilean National Health Fund (FONASA) for 2008. MATERIAL AND METHODS:Retrospective review of 225 patie...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:/S0034-98872010000500005
更新日期:2010-05-01 00:00:00
abstract:BACKGROUND:Gastric mucosal pH may be a good indicator of splanchnic tissue oxygenation. AIM:To study the effects of abdominal surgical procedures on gastric mucosal pH. PATIENTS AND METHODS:Eighteen patients subjected to abdominal surgery were studied. All patients received general anesthesia and hemodynamic paramete...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:
更新日期:1996-08-01 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::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::The association of gastric lymphoma and gastric adenocarcinoma in the same patient is uncommon. We report a 76 year-old male with a previous history of massive upper gastrointestinal bleeding who required a subtotal gastrectomy with Billroth II reconstruction in 1974. Pathology demonstrated a gastric lympho-histiocyti...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:/S0034-98872008001000013
更新日期:2008-10-01 00:00:00
abstract::We report a 56 years-old man presenting with chest pain with exercise, seven years after an orthotopic heart transplant. A coronary angiography showed an atherosclerotic lesion in the common left main coronary artery with more than 90% obstruction. The lesion was successfully treated with a transluminal angioplasty wi...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:/S0034-98872007001200012
更新日期:2007-12-01 00:00:00
abstract::In the last decades, there has been an increase in life expectancy in the world, with the consequent modification in the proportion of adults over 60 years. This is accompanied by an increase in pathologies for which aging is the main risk factor, such as dementia and hearing loss, which profoundly affect the quality ...
journal_title:Revista medica de Chile
pub_type: 杂志文章,评审
doi:10.4067/S0034-98872020000801128
更新日期:2020-08-01 00:00:00
abstract::We report a 74-year-old male with liver metastases from a neuroendocrine tumor (NET) of unknown origin. Conventional imaging studies with ultrasound, computed tomography colonoscopy and Positron emission tomography-computed tomography (PET/CT) with 18Fluor odeoxyglucose did not identify the site of origin of the prima...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:/S0034-98872009000400012
更新日期:2009-04-01 00:00:00
abstract:BACKGROUND:Hürthle cells can be found in non malignant thyroidal diseases such as Basedow Graves and Hashimoto diseases. When Hürthle cells comprise more the 75% of cellularity, they become a neoplasm. There are malignant variants of these neoplasms, constituted by follicular and papillary Hürthle cell carcinomas. AIM...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:
更新日期:1999-07-01 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:BACKGROUND:Since February 2002, Flextend electrode catheters are used at the Cardiovascular Unit of the Catholic University Clinical Hospital. These transvenous catheters have an IS-1 connector, silicone coating, active fixation and retractile helix with dexamethasone acetate. AIM:To report early and one year results ...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:/S0034-98872006000600011
更新日期:2006-06-01 00:00:00
abstract::Secondary acute myeloid leukemia is a very rare complication in patients with solid organ transplantation. We report a 62 years old female who received a right single lung allograft for idiopathic pulmonary fibrosis. Her immunosuppression scheme consisted in prednisone, azathioprine, and tacrolimus. Two years after th...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:10.4067/S0034-98872015000200015
更新日期:2015-02-01 00:00:00
abstract:BACKGROUND:Parents have a control role in the development and treatment of eating disorders among teenagers. AIM:To compare attitudes, beliefs and behaviors between mothers of patients with eating disorders and mothers of teenagers without these disorders. MATERIAL AND METHODS:Twenty one mother-sibling pairs of adole...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:/S0034-98872009000600008
更新日期:2009-06-01 00:00:00
abstract::The aim of this article is to analyze the current situation of AIDS in Latin American countries. Specifically, to compare their situation with other geographic areas of the planet, the prevalence index per countries, distribution per sex and age and, finally, the main ways of transmission in each country. The most rec...
journal_title:Revista medica de Chile
pub_type: 杂志文章,评审
doi:
更新日期:2001-08-01 00:00:00
abstract::Noncardiogenic pulmonary edema is a well recognized complication of upper airway obstruction. We report the case of a previously healthy 18-year-old male who presented this complication following laryngospasm after anesthesia. He developed severe pulmonary edema with hypoxemia, high cardiac output and low pulmonary ca...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:
更新日期:1992-12-01 00:00:00
abstract:BACKGROUND:Waist to height ratio and ultrasensitive C-reactive protein are predictors of the presence of the metabolic syndrome in children. AIM:To determine the proportional risk of metabolic syndrome component clustering in children, using waist to height ratio and ultrasensitive C-reactive protein. MATERIAL AND ME...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:/S0034-98872010001200006
更新日期:2010-11-01 00:00:00
abstract::Oncocytomas are tumors characterized by cells with an eosinophilic cytoplasm. Renal oncocytomas were described in 1942. Among 46 consecutive patients operated on for renal tumors, oncocytomas were found in 4 (8.7%). In spite of a supposedly benign nature, renal oncocytoma cannot be adequately differentiated from renal...
journal_title:Revista medica de Chile
pub_type: 杂志文章
doi:
更新日期:1992-05-01 00:00:00