Abstract:
BACKGROUND:Electrical cardioversion in patients with atrial fibrillation is associated with an increased risk for embolic stroke. Screening for atrial thrombi with transesophageal echocardiography (TEE) before cardioversion should, in many patients, safely permit cardioversion to be done earlier than would be possible with prolonged conventional, anticoagulation therapy. OBJECTIVE:To compare the feasibility and safety of TEE-guided early cardioversion with those of conventional management of cardioversion in patients with atrial fibrillation. DESIGN:Randomized, multicenter clinical trial. SETTING:10 hospitals in the United States, Europe, and Australia. PATIENTS:126 patients who had atrial fibrillation lasting longer than 2 days and were having electrical cardioversion. INTERVENTION:Conventional therapy or early, TEE-guided cardioversion with short-term anticoagulation therapy. OUTCOME MEASURES:Feasibility outcome variables were frequency of cardioversion and times to cardioversion and sinus rhythm. Safety outcomes were ischemic stroke, transient ischemic attack, systemic embolization, bleeding, and detected episodes of clinical hemodynamic instability occurring as long as 4 weeks after cardioversion. RESULTS:62 patients were randomly assigned to receive TEE-guided cardioversion; TEE was done in 56 (90%) of these patients. Atrial thrombi were detected in 7 patients (13%) and led to the postponement of cardioversion. Cardioversion was successful in 38 of 45 patients (84%) who had early cardioversion. No embolization occurred with this strategy. Of the 64 patients receiving conventional therapy, 37 (58%) had cardioversion, which was successful in 28 patients (76%). One patient had a peripheral embolic event. The time to cardioversion was shorter in the TEE group (0.6 weeks [95% CI, 0.3 to 0.9 weeks] compared with 4.8 weeks [CI, 3.8 to 5.7 weeks]; P < 0.01). The incidence of clinical hemodynamic instability and bleeding complications tended to be greater in the conventional therapy group. CONCLUSIONS:These results suggest that TEE-guided cardioversion with short-term anticoagulation therapy is feasible and safe. The use of TEE may allow cardioversion to be done earlier, may decrease the risk for embolism associated with cardioversion, and may be associated with less clinical instability than conventional therapy. A large, multicenter study to confirm these findings is currently under way.
journal_name
Ann Intern Medjournal_title
Annals of internal medicineauthors
Klein AL,Grimm RA,Black IW,Leung DY,Chung MK,Vaughn SE,Murray RD,Miller DP,Arheart KLdoi
10.7326/0003-4819-126-3-199702010-00004subject
Has Abstractpub_date
1997-02-01 00:00:00pages
200-9issue
3eissn
0003-4819issn
1539-3704journal_volume
126pub_type
临床试验,杂志文章,多中心研究,随机对照试验abstract:BACKGROUND:Dietary trans fat increases risk for coronary heart disease. In 2006, New York City (NYC) passed the first regulation in the United States restricting trans fat use in restaurants. OBJECTIVE:To assess the effect of the NYC regulation on the trans and saturated fat content of fast-food purchases. DESIGN:Cro...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-157-2-201207170-00004
更新日期:2012-07-17 00:00:00
abstract::Of 476 patients with multiple myeloma treated during a 9-year period, 11 developed acute myelogenous leukemia or sideroblastic anemia. In all, the myeloma was in remission from chemotherapy with melphalan-prednisone combinations that had been continued for a median duration of 3 years. The incidence of acute leukemia ...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-86-4-440
更新日期:1977-04-01 00:00:00
abstract:BACKGROUND:Liver transplantation holds promise as a treatment for familial amyloid polyneuropathy. OBJECTIVE:To determine whether peripheral nerves regenerate in patients with familial amyloid polyneuropathy after liver transplantation. DESIGN:Case report. SETTING:University hospital in Matsumoto, Japan. PATIENT:A ...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-127-8_part_1-199710150-00006
更新日期:1997-10-15 00:00:00
abstract::The clinical implications of newly acquired left bundle-branch block (LBBB) were examined prospectively in the Framingham Study population. During 18 years of observation 55 people developed LBBB. The mean age at the onset of LBBB was 62; LBBB occurred largely in people with antecedent hypertension, cardiac enlargemen...
journal_title:Annals of internal medicine
pub_type: 临床试验,杂志文章
doi:10.7326/0003-4819-90-3-303
更新日期:1979-03-01 00:00:00
abstract::Much time and effort are spent on designing primary research studies. Similar care must be given to planning systematic reviews. The review should be based on an important, well-focused question that is relevant to patient care. By formulating the question properly, the criteria that primary studies must meet to be in...
journal_title:Annals of internal medicine
pub_type: 杂志文章,评审
doi:10.7326/0003-4819-127-5-199709010-00008
更新日期:1997-09-01 00:00:00
abstract::Ten patients with lupus nephritis and marked proteinuria (3.9 g or more/d) that did not respond adequately to treatment with prednisone alone or prednisone in combination with azathioprine were treated with total lymphoid irradiation in an uncontrolled feasibility study. Within 6 weeks after the start of total lymphoi...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-102-4-450
更新日期:1985-04-01 00:00:00
abstract:BACKGROUND:Elevated blood pressure (BP) is the largest contributing risk factor to all-cause and cardiovascular mortality. PURPOSE:To update a systematic review on the benefits and harms of screening for high BP in adults and to summarize evidence on rescreening intervals and diagnostic and predictive accuracy of diff...
journal_title:Annals of internal medicine
pub_type: 杂志文章,评审
doi:10.7326/M14-1539
更新日期:2015-02-03 00:00:00
abstract:Background:Patients desire information about health care costs because they are increasingly responsible for these costs. Public Web sites that offer cost information could inform provider-patient discussions of costs at the point of care. Objective:To evaluate tools to facilitate the use of publicly available cost in...
journal_title:Annals of internal medicine
pub_type: 杂志文章,多中心研究
doi:10.7326/M18-2223
更新日期:2019-05-07 00:00:00
abstract::Sixty-nine out of a kindred of 100 members covering five generations were examined and studied, and 34 were hypercalcemic. Sixteen subjects were believed, on the basis of laboratory and clinical observations, to have primary hyperparathyroidism. Eight patients were subjected to exhaustive study to identify polyendocri...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-84-1-36
更新日期:1976-01-01 00:00:00
abstract::Polysaccharide vaccines against diseases caused by Neisseria meningitidis serogroups A and C meningococci are now licensed in the United States. They are prepared as monovalent and as bivalent antigens. This statement summarizes available information on these antigen and offers guidance regarding their role in the con...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:
更新日期:1976-02-01 00:00:00
abstract:PURPOSE:To evaluate the use of thyroid function tests to monitor therapy in patients taking levothyroxine. DATA IDENTIFICATION:Studies published between 1966 and January 1990 were identified through computer searches and references of identified studies. STUDY SELECTION:Studies that included a careful description of ...
journal_title:Annals of internal medicine
pub_type: 杂志文章,meta分析
doi:10.7326/0003-4819-113-6-450
更新日期:1990-09-15 00:00:00
abstract::Elevated serum digoxin concentrations and clinical toxicity have been reported in patients receiving quinidine. The present study was undertaken to ascertain whether a similar interaction occurs between quinidine and another cardiac glycoside, digitoxin, and if so to evaluate the pharmacokinetic basis in five healthy ...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-94-1-35
更新日期:1981-01-01 00:00:00
abstract:STUDY OBJECTIVE:To determine the effectiveness of chemotherapy and adjunctive surgery in managing patients with advanced seminoma. DESIGN:Nonrandomized prospective clinical trial of chemotherapy in a cohort of patients with advanced seminoma. SETTING:Referral cancer hospital. PATIENTS:Consecutive sample of 62 patien...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-108-4-513
更新日期:1988-04-01 00:00:00
abstract::Questionnaire II of the National Study of Internal Medicine Manpower was directed to all of the 1502 subspecialty training programs in the United States and Puerto Rico. The overall response rate was 86%. For the years 1972-1973 through 1976-1977 the number of fellows in subspecialty training grew at an average rate o...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-91-2-287
更新日期:1979-08-01 00:00:00
abstract:BACKGROUND:Patients with chronic obstructive pulmonary disease (COPD) frequently develop exacerbations, leading to major clinical and health resource use ramifications. OBJECTIVE:To prospectively evaluate the effectiveness of a long-acting inhaled anticholinergic bronchodilator, tiotropium, in reducing COPD exacerbati...
journal_title:Annals of internal medicine
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.7326/0003-4819-143-5-200509060-00007
更新日期:2005-09-06 00:00:00
abstract:Background:As cardiovascular risk increases in China, interest in strategies to mitigate it is growing. However, national information about the prevalence and treatment of high cardiovascular disease (CVD) risk is limited. Objective:To assess the prevalence and treatment of high CVD risk as well as variations in risk ...
journal_title:Annals of internal medicine
pub_type: 杂志文章,多中心研究
doi:10.7326/M18-1932
更新日期:2019-03-05 00:00:00
abstract:BACKGROUND:Previous studies suggest that patients hospitalized with acute myocardial infarction (MI) in December have poor outcomes, and some studies have hypothesized that the cause may be the infrequent use of evidence-based therapies during the December holiday season. OBJECTIVE:To compare the care and outcomes of ...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-143-7-200510040-00006
更新日期:2005-10-04 00:00:00
abstract:OBJECTIVE:To determine risk factors for community-acquired and nosocomial group B streptococcal disease in adults. DESIGN:Case-control study. SETTING:3 metropolitan areas in the United States with an aggregate population of 6.6 million persons. PATIENTS:219 nonpregnant adults with invasive group B streptococcal infe...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-123-6-199509150-00003
更新日期:1995-09-15 00:00:00
abstract::Endocarditis is a relatively frequent infection in intravenous drug users. We compared features in the cases of 102 patients with those in intravenous drug users with other causes of fever to identify risk factors predictive of endocarditis. Logistic regression analysis showed cocaine use to be strongly associated wit...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-106-6-833
更新日期:1987-06-01 00:00:00
abstract:OBJECTIVE:To evaluate the influence of a human immunodeficiency virus (HIV) vaccine given to uninfected volunteers on the interpretation of serodiagnostic HIV test results. DESIGN:Retrospective cohort study. SETTING:5 AIDS Vaccine Evaluation Units funded by the National Institute of Allergy and Infectious Diseases. ...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-121-8-199410150-00005
更新日期:1994-10-15 00:00:00
abstract:BACKGROUND:Vertebral fractures are a hallmark of postmenopausal osteoporosis and an important end point in trials of osteoporosis treatment, but the clinical significance of these fractures remains uncertain. OBJECTIVE:To determine the association of new vertebral fractures with back pain and back-related functional l...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-128-10-199805150-00001
更新日期:1998-05-15 00:00:00
abstract:OBJECTIVE:To estimate relative risk of mortality and median life expectancy for patients with classic hemophilia by a life-table analysis, taking into account deaths that may have occurred in infancy or childhood before the onset of symptoms. DESIGN:Retrospective chart review of clinical series. SETTING:Referral-base...
journal_title:Annals of internal medicine
pub_type: 历史文章,杂志文章
doi:10.7326/0003-4819-114-8-641
更新日期:1991-04-15 00:00:00
abstract:BACKGROUND:Although viral rebound follows cessation of suppressive antiretroviral therapy in chronic HIV infection, a viremic clinical syndrome has not been described. OBJECTIVE:To describe a retroviral syndrome associated with cessation of effective antiretroviral therapy in chronic HIV infection. DESIGN:Case report...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-133-6-200009190-00010
更新日期:2000-09-19 00:00:00
abstract::Two patients with profound decrease of alpha1-antitrypsin (PiZZ) presented with severe pannicultis (Weber-Christian disease); one had systemic panniculitis including pancreatitis. Another possible case is quoted from the literature. Although milder forms of panniculitis can have normal Pi phenotypes and alpha1-antitry...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-86-6-742
更新日期:1977-06-01 00:00:00
abstract::The U.S. Preventive Services Task Force (USPSTF) seeks to provide reliable and accurate evidence-based recommendations to primary care clinicians. However, clinicians indicate frustration with the lack of guidance provided by the USPSTF when the evidence is insufficient to make a recommendation. This article describes...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-150-3-200902030-00010
更新日期:2009-02-03 00:00:00
abstract::The four main conceptual paradigms of basic biomedical research are that the explication of mechanisms is a primary goal of science; that scientific data must be "hard"; that formulation of hypotheses and counter-hypotheses is a principal creative challenge; and that experiments are the main mechanism for using scient...
journal_title:Annals of internal medicine
pub_type: 临床试验,杂志文章
doi:10.7326/0003-4819-99-3-393
更新日期:1983-09-01 00:00:00
abstract:BACKGROUND:Despite extensive literature, the diagnostic role of d-dimer for deep venous thrombosis (DVT) or pulmonary embolism (PE) remains unclear, reflecting multiple d-dimer assays and concerns about differing sensitivities and variability. PURPOSE:To systematically review trials that assessed sensitivity, specific...
journal_title:Annals of internal medicine
pub_type: 杂志文章,meta分析,评审
doi:10.7326/0003-4819-140-8-200404200-00005
更新日期:2004-04-20 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:BACKGROUND:Variants in genes involved in warfarin metabolism and sensitivity affect individual warfarin requirements and the risk for bleeding. Testing for these variant alleles might allow more personalized dosing of warfarin during the induction phase. In 2007, the U.S. Food and Drug Administration changed the labeli...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-150-2-200901200-00005
更新日期:2009-01-20 00:00:00
abstract::Recently, antibodies to human T-cell leukemia virus membrane antigens (HTLV-MA) and elevated levels of beta 2-microglobulin and thymosin alpha 1 have been found with high frequency in patients with the acquired immunodeficiency syndrome. Prospective studies of asymptomatic persons at high risk for this syndrome will a...
journal_title:Annals of internal medicine
pub_type: 杂志文章
doi:10.7326/0003-4819-100-2-178
更新日期:1984-02-01 00:00:00