Background-Coronary artery bypass graft surgery with cardiopulmonary bypass is a safe, routine procedure. Nevertheless, significant morbidity remains, mostly because of the body's response to the nonphysiological nature of cardiopulmonary bypass. Few data are available on the effects of off-pump coronary artery bypass graft surgery (OPCAB) on cardiac events and long-term clinical outcomes. Methods and Results-In a single-center randomized trial, 308 patients undergoing coronary artery bypass graft surgery were randomly assigned: 155 to OPCAB and 153 to on-pump CAB (ONCAB). Primary composite end points were death, myocardial infarction, further revascularization (surgery or angioplasty), or stroke. After 5-year follow-up, the primary composite end point was not different between groups (hazard ratio 0.
Background-The importance of complete revascularization remains unclear and contradictory. This current investigation compares the effect of complete revascularization on 10-year survival of patients with stable multivessel coronary artery disease (CAD) who were randomly assigned to percutaneous coronary intervention (PCI) or coronary artery bypass graft (CABG). Methods and Results-This is a post hoc analysis of the Second Medicine, Angioplasty, or Surgery Study (MASS II), which is a randomized trial comparing treatments in patients with stable multivessel CAD, and preserved systolic ventricular function. We analyzed patients who underwent surgery (CABG) or stent angioplasty (PCI). The survival free of overall mortality of patients who underwent complete (CR) or incomplete revascularization (IR) was compared. Of the 408 patients randomly assigned to mechanical revascularization, 390 patients (95.6%) underwent the assigned treatment; complete revascularization was achieved in 224 patients (57.4%), 63.8% of those in the CABG group and 36.2% in the PCI group (Pϭ0.001). The IR group had more prior myocardial infarction than the CR group (56.2%ϫ39.2%, Pϭ0.01). During a 10-year follow-up, the survival free of cardiovascular mortality was significantly different among patients in the 2 groups (CR, 90.6% versus IR, 84.4%; Pϭ0.04). This was mainly driven by an increased cardiovascular specific mortality in individuals with incomplete revascularization submitted to PCI (Pϭ0.05). Conclusions-Our study suggests that in 10-year follow-up, CR compared with IR was associated with reduced cardiovascular mortality, especially due to a higher increase in cardiovascular-specific mortality in individuals submitted to PCI. Clinical Trial Registration Information-URL: http://www.controlled-trials.com. Registration number: ISRCTN66068876.(Circulation. 2012;126[suppl 1]:S158 -S163.)
Despite being a rare condition, lower gastrointestinal bleeding in this profile of ICU patients could be the clinical manifestation of CMV colitis, and intensivists should be alert to this condition.
Background-The Second Medicine, Angioplasty, or Surgery Study (MASS II) included patients with multivessel coronary artery disease and normal systolic ventricular function. Patients underwent coronary artery bypass graft surgery (CABG, nϭ203), percutaneous coronary intervention (PCI, nϭ205), or medical treatment alone (MT, nϭ203). This investigation compares the economic outcome at 5-year follow-up of the 3 therapeutic strategies. Methods and Results-We analyzed cumulative costs during a 5-year follow-up period. To analyze the cost-effectiveness, adjustment was made on the cumulative costs for average event-free time and angina-free proportion. Respectively, for event-free survival and event plus angina-free survival, MT presented 3.79 quality-adjusted life-years and 2.07 quality-adjusted life-years; PCI presented 3.59 and 2.77 quality-adjusted life-years; and CABG demonstrated 4.4 and 2.81 quality-adjusted life-years. The event-free costs were $9071.00 for MT; $19 967.00 for PCI; and $18 263.00 for CABG. The paired comparison of the event-free costs showed that there was a significant difference favoring MT versus PCI (PϽ0.01) and versus CABG (PϽ0.01) and CABG versus PCI (Pϭ0.01). The event-free plus angina-free costs were $16 553.00, $25 831.00, and $24 614.00, respectively. The paired comparison of the event-free plus angina-free costs showed that there was a significant difference favoring MT versus PCI (Pϭ0.04), and versus CABG (PϽ0.001); there was no difference between CABG and PCI (PϾ0.05). Conclusions-In the long-term economic analysis, for the prevention of a composite primary end point, MT was more cost effective than CABG, and CABG was more cost-effective than PCI. Clinical Trial Registration Information-www.controlled-trials.com. Registration number: ISRCTN66068876. (Circulation. 2012;126[suppl 1]:S145-S150.)
Different treatment options for multivessel coronary artery disease have similar overall mortality: CABG patients had the lowest incidence of cardiac death, but the highest incidence of noncardiac causes of death, and specifically a higher tendency toward cancer-related deaths.
RESUMO: O objetivo deste artigo é introduzir no debate sobre valoração do tempo de viagem dos trabalhadores urbanos uma visão alternativa sobre a integração de alguns de seus canais de transmissão para a economia. A relação entre tempo de deslocamento, mobilidade e produtividade é explorada, juntamente com a possibilidade de se capturar seus efeitos de equilíbrio geral em um sistema econômico espacial. O método proposto é aplicado para o caso da RMSP. Além de oferecermos parâmetros adicionais para avaliação econômica de projetos de mobilidade urbana na RMSP, efetuamos o cálculo das perdas econômicas associadas às fricções de mobilidade excessivas na região.
PALAVRAS-CHAVE
ESPECIAL MOBILIDADE URBANA
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