RESUMO
The short-term effectiveness of tolvaptan (TLV) for heart failure (HF) has been established, but the long-term effects are controversial. We investigated HF patients who could not discontinue both loop diuretics and TLV at discharge from AURORA (Acute Heart Failure Registry in Osaka Rosai Hospital). We compared the following factors at discharge between the RH group, consisting of patients with rehospitalizations due to worsening HF within 1 year after discharge (RH group), and non-RH group: age, gender, blood pressure, history of HF admission, electrocardiogram and echocardiographic parameters, atherosclerotic risk factors, laboratory data, and medications. Furthermore, we compared the effects of long-term low-dose TLV (≤ 7.5 mg/day) and high-dose TLV on HF rehospitalizations. The RH group consisted of 81 patients (58.7%). A multivariate analysis revealed that a history of HF admission and the TLV dose were independently and significantly associated with 1-year HF rehospitalizations. A receiver operating characteristic curve revealed that 7.5 mg of TLV was a suitable cutoff value for 1-year HF rehospitalizations. The Kaplan-Meier curves demonstrated that the HF rehospitalization free ratio was significantly higher in the low-dose TLV group (≤ 7.5 mg/day) than in high-dose TLV group over 1 year.In conclusion, the TLV dose, in addition to a history of HF admission, was associated with 1-year HF rehospitalizations in diuretic-dependent HF patients. In these patients, long-term low-dose TLV (≤ 7.5 mg/day) may be favorable for reducing HF rehospitalizations.
Assuntos
Antagonistas dos Receptores de Hormônios Antidiuréticos/administração & dosagem , Insuficiência Cardíaca/tratamento farmacológico , Readmissão do Paciente , Tolvaptan/administração & dosagem , Idoso , Idoso de 80 Anos ou mais , Estudos de Coortes , Esquema de Medicação , Feminino , Insuficiência Cardíaca/complicações , Insuficiência Cardíaca/mortalidade , Humanos , Japão , Estimativa de Kaplan-Meier , Masculino , Curva ROC , Sistema de Registros , Inibidores de Simportadores de Cloreto de Sódio e Potássio/administração & dosagemAssuntos
Potenciais de Ação , Procedimentos Cirúrgicos Cardíacos/efeitos adversos , Átrios do Coração/fisiopatologia , Frequência Cardíaca , Valva Mitral/cirurgia , Taquicardia Supraventricular/etiologia , Ablação por Cateter , Eletrocardiografia , Técnicas Eletrofisiológicas Cardíacas , Átrios do Coração/cirurgia , Humanos , Valva Mitral/diagnóstico por imagem , Valva Mitral/fisiopatologia , Recidiva , Estudos Retrospectivos , Taquicardia Supraventricular/diagnóstico , Taquicardia Supraventricular/fisiopatologia , Taquicardia Supraventricular/cirurgia , Fatores de Tempo , Resultado do TratamentoRESUMO
This study investigated the effect of bergamot essential oil (BEO) or linalool, a major volatile component of BEO, on the nociceptive response to formalin. Plantar subcutaneous injection of BEO or linalool into the ipsilateral hindpaw reduced both the first and late phases of the formalin-induced licking and biting responses in mice. Plantar subcutaneous injection of BEO or linalool into the contralateral hindpaw did not yield an antinociceptive effect, suggesting that the antinociceptive effect of BEO or linalool in the formalin test occurred peripherally. Intraperitoneal and plantar subcutaneous injection pretreatment with naloxone hydrochloride, an opioid receptor antagonist, significantly attenuated both BEO- and linalool-induced antinociception. Pretreatment with naloxone methiodide, a peripherally acting opioid receptor antagonists, also significantly antagonized the antinociceptive effects of BEO and linalool. Our results provide evidence for the involvement of peripheral opioids in antinociception induced by BEO and linalool. These results suggest that activation of peripheral opioid receptors may play an important role in reducing formalin-induced nociception.