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Invasive versus conservative strategy in patients aged 80 years or older with non-ST-elevation myocardial infarction or unstable angina pectoris (After Eighty study): an open-label randomised controlled trial

The Lancet (British edition), 2016-03, Vol.387 (10023), p.1057-1065 [Peer Reviewed Journal]

Elsevier Ltd ;2016 Elsevier Ltd ;Copyright © 2016 Elsevier Ltd. All rights reserved. ;Copyright Elsevier Limited Mar 12, 2016 ;ISSN: 0140-6736 ;EISSN: 1474-547X ;DOI: 10.1016/S0140-6736(15)01166-6 ;PMID: 26794722 ;CODEN: LANCAO

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Title:
Invasive versus conservative strategy in patients aged 80 years or older with non-ST-elevation myocardial infarction or unstable angina pectoris (After Eighty study): an open-label randomised controlled trial
Author: Tegn, Nicolai, MD ; Abdelnoor, Michael, Prof ; Aaberge, Lars, MD ; Endresen, Knut, MD ; Smith, Pål, Prof ; Aakhus, Svend, Prof ; Gjertsen, Erik, MD ; Dahl-Hofseth, Ola, MD ; Ranhoff, Anette Hylen, Prof ; Gullestad, Lars, Prof ; Bendz, Bjørn, Dr
Subjects: Aged, 80 and over ; Angina pectoris ; Angina, Unstable - mortality ; Angina, Unstable - therapy ; Cardiology ; Cardiovascular Agents - therapeutic use ; Clinical trials ; Coronary Angiography - mortality ; Coronary Angiography - statistics & numerical data ; Coronary Artery Bypass - methods ; Coronary Artery Bypass - mortality ; Electrocardiography ; Female ; Heart attacks ; Humans ; Internal Medicine ; Kaplan-Meier Estimate ; Male ; Medical treatment ; Myocardial Infarction - mortality ; Myocardial Infarction - therapy ; Myocardial Revascularization - mortality ; Myocardial Revascularization - statistics & numerical data ; Oldest old people ; Percutaneous Coronary Intervention - methods ; Percutaneous Coronary Intervention - mortality ; Postoperative Hemorrhage - etiology ; Postoperative Hemorrhage - mortality ; Reoperation - mortality ; Reoperation - statistics & numerical data ; Stroke - etiology ; Stroke - mortality ; Time-to-Treatment ; Treatment Outcome
Is Part Of: The Lancet (British edition), 2016-03, Vol.387 (10023), p.1057-1065
Description: Summary Background Non-ST-elevation myocardial infarction (NSTEMI) and unstable angina pectoris are frequent causes of hospital admission in the elderly. However, clinical trials targeting this population are scarce, and these patients are less likely to receive treatment according to guidelines. We aimed to investigate whether this population would benefit from an early invasive strategy versus a conservative strategy. Methods In this open-label randomised controlled multicentre trial, patients aged 80 years or older with NSTEMI or unstable angina admitted to 16 hospitals in the South-East Health Region of Norway were randomly assigned to an invasive strategy (including early coronary angiography with immediate assessment for percutaneous coronary intervention, coronary artery bypass graft, and optimum medical treatment) or to a conservative strategy (optimum medical treatment alone). A permuted block randomisation was generated by the Centre for Biostatistics and Epidemiology with stratification on the inclusion hospitals in opaque concealed envelopes, and sealed envelopes with consecutive inclusion numbers were made. The primary outcome was a composite of myocardial infarction, need for urgent revascularisation, stroke, and death and was assessed between Dec 10, 2010, and Nov 18, 2014. An intention-to-treat analysis was used. This study is registered with ClinicalTrials.gov , number NCT01255540. Findings During a median follow-up of 1·53 years of participants recruited between Dec 10, 2010, and Feb 21, 2014, the primary outcome occurred in 93 (40·6%) of 229 patients assigned to the invasive group and 140 (61·4%) of 228 patients assigned to the conservative group (hazard ratio [HR] 0·53 [95% CI 0·41–0·69], p=0·0001). Five patients dropped out of the invasive group and one from the conservative group. HRs for the four components of the primary composite endpoint were 0·52 (0·35–0·76; p=0·0010) for myocardial infarction, 0·19 (0·07–0·52; p=0·0010) for the need for urgent revascularisation, 0·60 (0·25–1·46; p=0·2650) for stroke, and 0·89 (0·62–1·28; p=0·5340) for death from any cause. The invasive group had four (1·7%) major and 23 (10·0%) minor bleeding complications whereas the conservative group had four (1·8%) major and 16 (7·0%) minor bleeding complications. Interpretation In patients aged 80 years or more with NSTEMI or unstable angina, an invasive strategy is superior to a conservative strategy in the reduction of composite events. Efficacy of the invasive strategy was diluted with increasing age (after adjustment for creatinine and effect modification). The two strategies did not differ in terms of bleeding complications. Funding Norwegian Health Association (ExtraStiftelsen) and Inger and John Fredriksen Heart Foundation.
Publisher: England: Elsevier Ltd
Language: English
Identifier: ISSN: 0140-6736
EISSN: 1474-547X
DOI: 10.1016/S0140-6736(15)01166-6
PMID: 26794722
CODEN: LANCAO
Source: ProQuest One Psychology
MEDLINE
ProQuest Central

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Invasive versus conservative strategy in patients aged 80 years or older with non-ST-elevation myocardial infarction or unstable angina pectoris (After Eighty study): an open-label randomised controlled trial

Elsevier Ltd ;2016 Elsevier Ltd ;Copyright © 2016 Elsevier Ltd. All rights reserved. ;Copyright Elsevier Limited Mar 12, 2016 ;ISSN: 0140-6736 ;EISSN: 1474-547X ;DOI: 10.1016/S0140-6736(15)01166-6 ;PMID: 26794722 ;CODEN: LANCAO

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