Abstract:
:Differences in blood levels of thyroid hormones have been reported when patients taking synthetic L-thyroxine were shifted from one manufactured form of the hormone to another. Because recent formulation changes have rendered these earlier data obsolete, we did a crossover study to determine differences in bioavailability of the two principal brands of thyroxine, Synthroid and Levothroid. Twenty patients received Synthroid and then Levothroid, and 14 received Levothroid and then Synthroid. Patients received each drug for 6 weeks. Although no significant differences were seen in routine thyroid hormone measurements, combined data from both groups showed a significantly higher free thyroxine level in the patients treated with Synthroid, as well as lower thyrotrophin values at 15 and 30 minutes after administration of thyrotrophin-releasing hormone. Equal doses of the currently manufactured forms of these two products are similar but not bioequivalent.
journal_name
Ann Intern Medjournal_title
Annals of internal medicineauthors
Hennessey JV,Burman KD,Wartofsky Ldoi
10.7326/0003-4819-102-6-770subject
Has Abstractpub_date
1985-06-01 00:00:00pages
770-3issue
6eissn
0003-4819issn
1539-3704journal_volume
102pub_type
杂志文章abstract:PURPOSE:To review evidence about thyroxine suppressive therapy in patients with thyroid nodules, including the clinical importance and natural history of nodules and the effects and potential side effects of thyroxine therapy. DATA SOURCES:English-language articles published from 1986 to December 1996 were identified ...
journal_title:Annals of internal medicine
pub_type: 杂志文章,评审
doi:10.7326/0003-4819-128-5-199803010-00008
更新日期:1998-03-01 00:00:00
abstract::Women comprise more than one third of the active physician workforce, an estimated 46% of all physicians-in-training, and more than half of all medical students in the United States. Although progress has been made toward gender diversity in the physician workforce, disparities in compensation exist and inequities hav...
journal_title:Annals of internal medicine
pub_type: 指南,杂志文章
doi:10.7326/M17-3438
更新日期:2018-05-15 00:00:00
abstract:OBJECTIVE:To develop criteria for interpreting results of the metyrapone test for the differential diagnosis of the adrenocorticotropin (ACTH)-dependent Cushing syndrome and to compare its diagnostic accuracy with that of the high-dose dexamethasone suppression test. DESIGN:Retrospective cohort study. SETTING:Inpatie...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-121-5-199409010-00002
更新日期:1994-09-01 00:00:00
abstract::Sudden cardiac death remains a leading cause of death in the United States, accounting for more than 350,000 deaths each year, and the survival rate of victims remains low. Most survivors face a significant risk for recurrence. The typical substrate is chronic--abnormal myocardium with fibrosis (often from previous my...
journal_title:Annals of internal medicine
pub_type: 杂志文章,评审
doi:10.7326/0003-4819-114-6-499
更新日期:1991-03-15 00:00:00
abstract:BACKGROUND:Apolipoprotein E (apoE) genotypes play critical roles in lipid metabolism and are believed to influence risk for coronary heart disease (CHD). Despite many population studies, however, the impact of apoE polymorphism on risk for CHD remains uncertain. PURPOSE:To qualitatively and quantitatively assess the e...
journal_title:Annals of internal medicine
pub_type: 杂志文章,meta分析
doi:10.7326/0003-4819-141-2-200407200-00013
更新日期:2004-07-20 00:00:00
abstract:DESCRIPTION:This guideline is an official statement of the American College of Physicians (ACP), American College of Chest Physicians (ACCP), American Thoracic Society (ATS), and European Respiratory Society (ERS). It represents an update of the 2007 ACP clinical practice guideline on diagnosis and management of stable...
journal_title:Annals of internal medicine
pub_type: 杂志文章,实务指引
doi:10.7326/0003-4819-155-3-201108020-00008
更新日期:2011-08-02 00:00:00
abstract::Early defibrillation is the most important determinant of survival for victims of cardiac arrest due to ventricular fibrillation. The automated external defibrillator (AED) was developed as the result of the American Heart Association's Public Access Defibrillation initiative. The goal of this initiative is to place A...
journal_title:Annals of internal medicine
pub_type: 杂志文章,评审
doi:10.7326/0003-4819-135-11-200112040-00011
更新日期:2001-12-04 00:00:00
abstract::Neuroblastoma, the second commonest solid tumor in children, is a neoplasm of the peripheral autonomic nervous system that usually occurs before children are 6 years old. Therapy of localized tumor (clinical stage I and II) and of a special form of metastatic tumor (clinical stage IV-S) is usually successful, but trea...
journal_title:Annals of internal medicine
pub_type: 杂志文章,评审
doi:10.7326/0003-4819-97-6-873
更新日期:1982-12-01 00:00:00
abstract:STUDY OBJECTIVE:To determine whether obesity preceded knee osteoarthritis and was thus a possible cause. DESIGN:Cohort study with weight and other important variables measured in 1948 to 1951 (mean age of subjects, 37 years) and knee arthritis evaluated in 1983 to 1985 (mean age of subjects, 73 years). SETTING:Popula...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-109-1-18
更新日期:1988-07-01 00:00:00
abstract:BACKGROUND:Smokers with medical illnesses are at particular risk for complications caused by tobacco. Clinical trial data on the effectiveness of triple-combination pharmacotherapy for tobacco dependence treatment in these high-risk smokers are not available. OBJECTIVE:To evaluate extended duration of a triple-medicat...
journal_title:Annals of internal medicine
pub_type: 杂志文章,随机对照试验
doi:10.7326/0003-4819-150-7-200904070-00004
更新日期:2009-04-07 00:00:00
abstract::Three cases of carbamazepine-induced granulomatous hepatitis are reported. Each patient had ingested carbamazepine for less than 1 month before presenting with a febrile illness suggestive of biliary tract infection. After withdrawal of carbamazepine, symptoms disappeared rapidly. Histologically, all patients had gran...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-95-1-64
更新日期:1981-07-01 00:00:00
abstract::A controlled clinical trial compared three-drug and four-drug combination chemotherapy in 109 patients with advanced small-cell anaplastic carcinoma of the lung. The combination of vincristine, 1-(2-chloroethyl)-3-cyclohexyl-1-nitrosourea (CCNU), cyclophosphamide, and methotrexate was significantly superior to the com...
journal_title:Annals of internal medicine
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.7326/0003-4819-89-2-177
更新日期:1978-08-01 00:00:00
abstract::Recently developed radioligand binding techniques permit direct investigation of the alpha- and beta-adrenergic receptors for catecholamines in a wide variety of tissues. These techniques allow the receptors to be quantitated, characterized, and studied under varying conditions of physiologic and pathophysiologic inte...
journal_title:Annals of internal medicine
pub_type: 杂志文章,评审
doi:10.7326/0003-4819-91-3-450
更新日期:1979-09-01 00:00:00
abstract::A group of 44 homosexual patients with immune thrombocytopenia and serologic evidence of infection with the human immunodeficiency virus (HIV) was observed for a total of 844 person-months. The risk of developing the acquired immunodeficiency syndrome (AIDS), an actuarial incidence of 36.5% in 37 months, was no differ...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-106-3-383
更新日期:1987-03-01 00:00:00
abstract:OBJECTIVES:To determine the distribution of and risk factors for colonization and infection with vancomycin-resistant enterococci; to evaluate the molecular epidemiology of these strains; and to assess the effect of interventions, including 1) strict adherence to infection control procedures and 2) restricted use of va...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-123-4-199508150-00002
更新日期:1995-08-15 00:00:00
abstract:Background:Little is known about whether insurance expansion affects the location and type of emergency department (ED) use. Understanding these changes can inform state-level decisions about the Medicaid expansion under the Patient Protection and Affordable Care Act (ACA). Objective:To investigate the effect of the 2...
journal_title:Annals of internal medicine
pub_type: 杂志文章,多中心研究
doi:10.7326/M16-0086
更新日期:2017-02-07 00:00:00
abstract:PURPOSE:To assess the data that support the use of coronary angiography and angioplasty after acute myocardial infarction, that identify the risks of these procedures, and that analyze their use and costs. DATA SOURCES:English-language articles published between 1970 and June 1995 identified through a search of the ME...
journal_title:Annals of internal medicine
pub_type: 杂志文章,评审
doi:10.7326/0003-4819-126-7-199704010-00007
更新日期:1997-04-01 00:00:00
abstract::Hepatocellular carcinoma is the most frequent cancer worldwide, responsible for approximately 1,000,000 deaths annually, most of them in the Far East and in sub-Saharan Africa. It usually presents at an advanced stage and has a poor prognosis. There is evidence of an etiologic role for hepatitis B virus infection in t...
journal_title:Annals of internal medicine
pub_type: 杂志文章,评审
doi:10.7326/0003-4819-108-3-390
更新日期:1988-03-01 00:00:00
abstract::We have seen two patients whose hepatitis was due to the administration of aprindine, a new antiarrhythmic agent. In both patients evidence of hepatitis appeared within 3 weeks of initiating aprindine therapy and resolved rapidly when the drug was withdrawn. The reintroduction of aprindine in one patient was associate...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-89-3-359
更新日期:1978-09-01 00:00:00
abstract::Adult salicylate intoxication has been considered to be easily recognized and assciated with low morbidity and mortality. In the present study of 73 consecutive adults hospitalized with salicylate intoxication, 27% of patients were undiagnosed for as long as 72 h after admission. The initial physical findings and labo...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-85-6-745
更新日期:1976-12-01 00:00:00
abstract::Pemphigus is an autoimmune intraepidermal bullous disease involving the skin and mucous membranes. There are four clinically recognized variants of this disease. The histopathologic hallmark is acantholysis, which is disruption of normal cell-to-cell adhesion. Patients produce an IgG antibody directed against an antig...
journal_title:Annals of internal medicine
pub_type: 杂志文章,评审
doi:10.7326/0003-4819-92-3-396
更新日期:1980-03-01 00:00:00
abstract::Aspects of phosphate biochemistry pertinent to therapy, the distribution of phosphorus in body compartments, therapeutic phosphorus preparations, prevention of hypophosphatemia, therapeutic guidelines, and side-effects of phosphorus therapy are reviewed. Severe hypophosphatemia (less than 0.32 mmol/litre or less than ...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-89-6-941
更新日期:1978-12-01 00:00:00
abstract::Large-scale, epidemic transmission of tuberculosis to patients, nonprofessional staff, nurses, and physicians has been documented recently in hospitals, clinics, acquired immunodeficiency syndrome (AIDS) residencies, and correctional facilities. Prominent factors in these outbreaks have included human immunodeficiency...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-117-3-251
更新日期:1992-08-01 00:00:00
abstract:BACKGROUND:Increased prevalence of adolescent obesity requires effective treatment options beyond behavior therapy. OBJECTIVE:To see whether sibutramine reduced weight more than placebo in obese adolescents who were receiving a behavior therapy program. DESIGN:12-month, 3:1 randomized, double-blind trial conducted fr...
journal_title:Annals of internal medicine
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.7326/0003-4819-145-2-200607180-00005
更新日期:2006-07-18 00:00:00
abstract:BACKGROUND:Primary prevention of Alzheimer disease and other types of dementia (all-cause dementia) is an important public health goal. Evidence to date is insufficient to recommend any lifestyle change to prevent or delay the onset of dementia. OBJECTIVE:To assess the association between objectively measured midlife ...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-158-3-201302050-00005
更新日期:2013-02-05 00:00:00
abstract:BACKGROUND:Current magnetic resonance techniques generate high signal from venous blood and show thrombi as filling defects. Magnetic resonance direct thrombus imaging (MRDTI) directly visualizes acute thrombus. OBJECTIVE:To determine the accuracy of MRDTI for diagnosis of acute symptomatic deep venous thrombosis (DVT...
journal_title:Annals of internal medicine
pub_type: 临床试验,杂志文章
doi:10.7326/0003-4819-136-2-200201150-00006
更新日期:2002-01-15 00:00:00
abstract:Background:Cardiovascular implantable electronic devices (CIEDs) are associated with procedure-related complications, yet little is known about variation in complication rates among institutions that may suggest disparities in care quality. Objective:To assess institutional variation in risk-standardized complication ...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/M18-2810
更新日期:2019-09-03 00:00:00
abstract::Two patients presented with abnormalities suggestive of pituitary adenoma; one during pregnancy and one in the postpartum period. However, pathologic examination of the pituitary showed extensive destruction by a lymphoplasmacytic infiltrate; no tumor was identified. Both patients developed hypopituitarism. We know of...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-95-2-166
更新日期:1981-08-01 00:00:00
abstract::In April 1976 the attack rate of chills and fever with or without falls in blood pressure increased in association with cardiac catheterizations. Fevers were associated with coronary angiography and right and left heart catheterizations. Blood cultures were negative, and reactions did not correlate with amounts of con...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-93-1-32
更新日期:1980-07-01 00:00:00
abstract::Traditionally, acupuncture is embedded in naturalistic theories that are compatible with Confucianism and Taoism. Such ideas as yin-yang, qi, dampness, and wind represent East Asian conceptual frameworks that emphasize the reliability of ordinary, human sensory awareness. Many physicians who practice acupuncture rejec...
journal_title:Annals of internal medicine
pub_type: 历史文章,杂志文章,评审
doi:10.7326/0003-4819-136-5-200203050-00010
更新日期:2002-03-05 00:00:00