RESUMO
Resumo Fundamento A fibrilação atrial (FA) é uma complicação prevalente associada à levosimendana; no entanto, permanece incerto se existem disparidades nos efeitos da levosimendana na FA não pós-operatória e pós-operatória. Objetivos Este estudo teve como objetivo avaliar o efeito da levosimendana na FA não pós-operatória e pós-operatória conduzindo uma metanálise de ensaios clínicos randomizados (ECR). Métodos PubMed, Embase, Biblioteca Cochrane e outras bases de dados foram pesquisadas. Pares de revisores identificaram ECRs que compararam levosimendana e placebo ou outras terapias, e os resultados relataram dados de eventos de FA. Foram utilizados modelos de efeitos aleatórios (com nível de significância de 5%). Resultados Foram incluídos 29 ensaios elegíveis compreendendo 6.550 participantes, onze dos quais avaliaram a incidência de FA não pós-operatória e 18 incluíram FA pós-operatória. A análise revelou que a levosimendana elevou significativamente o risco de FA no grupo não pós-operatório (OR, 1,62; IC 95%: 1,19-2,20; p=0,002) e reduziu a incidência de FA no grupo pós-operatório (OR, 0,65; IC 95%: 0,44-0,96; p=0,03). A ocorrência de FA diminuiu mais significativamente em pacientes que usaram levosimendana após cirurgia cardíaca (OR, 0,53; IC 95%: 0,32-0,88; p=0,02) do que em pacientes que usaram levosimendana antes da cirurgia cardíaca (OR, 0,67; IC 95%: 0,42-1,06; p=0,09). O risco de FA foi significativamente elevado pela grande dose em bolus de levosimendana (dose em bolus ≥12 μg/kg) (OR, 1,44; IC 95%: 1,10-1,88; p=0,004) e diminuído pela pequena dose em bolus de levosimendana (dose em bolus <12 μg/kg) (OR, 0,64; IC 95%: 0,34-1,20; p=0,16). Conclusão A levosimendana foi associada a um aumento da incidência de FA não pós-operatória. O emprego da levosimendana foi eficaz na prevenção da FA pós-operatória.
Abstract Background Atrial fibrillation (AF) is a prevalent complication associated with levosimendan; however, it remains uncertain whether there are any disparities in the effects of levosimendan on non-postoperative and postoperative AF. Objectives This study aimed to evaluate the levosimendan effect on non-postoperative and postoperative AF by conducting a meta-analysis of randomized control trials (RCTs). Methods PubMed, Embase, Cochrane Library, and other databases were searched. Pairs of reviewers identified RCTs that compared levosimendan and placebo or other therapies, and the results reported AF events data. Random effects models were used (at a significance level of 5%). Results Twenty-nine eligible trials comprising 6550 participants were included, eleven of which evaluated the non-postoperative AF incidence, and 18 included postoperative AF. The analysis revealed that levosimendan elevated the AF risk significantly in the non-postoperative group (OR, 1.62; 95% CI: 1.19-2.20; p=0.002) and reduced the AF incidence in the postoperative group (OR, 0.65; 95% CI: 0.44-0.96; p=0.03). AF occurrence decreased more significantly in patients who used levosimendan after cardiac surgery (OR, 0.53; 95% CI: 0.32-0.88; p=0.02) than in patients who used levosimendan before cardiac surgery (OR, 0.67; 95% CI: 0.42-1.06; p=0.09). Moreover, The AF risk was significantly elevated by levosimendan large bolus dose (bolus dose≥12 μg/kg) (OR, 1.44; 95% CI: 1.10-1.88; p=0.004) and decreased by small bolus dose of levosimendan (bolus dose<12 μg/kg) (OR, 0.64; 95% CI: 0.34-1.20; p=0.16). Conclusion Levosimendan was linked to an increased non-postoperative AF incidence. The employment of levosimendan was effective in preventing postoperative AF.
RESUMO
One year after the Deepwater Horizon oil spill accident, semipermeable membrane devices (SPMDs) and polyethylene devices (PEDs) were deployed in wetland areas and coastal areas of the Gulf of Mexico (GOM) to monitor polycyclic aromatic hydrocarbons (PAHs). The measured PAH levels with the PEDs in coastal areas were 0.05-1.9 ng/L in water and 0.03-9.7 ng/L in sediment porewater. With the SPMDs, the measured PAH levels in wetlands (Barataria Bay) were 1.4-73 ng/L in water and 3.3-107 ng/L in porewater. The total PAH concentrations in the coastal areas were close to the reported baseline PAH concentrations in GOM; however, the total PAH concentrations in the wetland areas were one or two orders of magnitude higher than those reported in the coastal areas. In light of the significant spatial variability of PAHs in the Gulf's environments, baseline information on PAHs should be obtained in specific areas periodically.