Efficacy of Tolvaptan on Fluid Management After Cardiovascular Surgery Using Cardiopulmonary Bypass.
J Cardiothorac Vasc Anesth
; 30(6): 1471-1478, 2016 Dec.
Article
em En
| MEDLINE
| ID: mdl-27591907
ABSTRACT
OBJECTIVE:
To investigate the efficacy of the selective vasopressin V2-receptor antagonist tolvaptan in postoperative fluid management after cardiovascular surgery using cardiopulmonary bypass.DESIGN:
A retrospective cohort study.SETTING:
A tertiary care center.PARTICIPANTS:
The study comprised 99 patients undergoing cardiovascular surgery using cardiopulmonary bypass.INTERVENTIONS:
Oral tolvaptan was administered after surgery. MEASUREMENTS AND MAINRESULTS:
Fifty-one patients treated with tolvaptan were compared with 48 patients treated with intravenous diuretics. Urine volume, the time interval until the patients' body weight returned to the preoperative value, and the length of oxygen dependency after extubation were assessed as surrogate markers for resolution of fluid overload. Urine output on postoperative days 1 and 2 was significantly higher in the tolvaptan-treated patients (29.2 v 20.1 mL/kg/day, p = 0.001; 43.0 v 27.4 mL/kg/day, p<0.001, respectively). Postoperative body weight returned to baseline in 49 tolvaptan-treated patients compared with 33 patients treated with intravenous diuretics (96.1% v 68.8%, p<0.001). Among those with successful body weight reduction, the time interval was shorter in the tolvaptan-treated patients (5 v 7 days, p = 0.006). The length of oxygen dependency after extubation also was shorter in the tolvaptan-treated patients (2 v 3 days, p = 0.006). The urine osmolarity reduction rate before and 4 hours after the first dose of tolvaptan emerged as a significant predictor of its efficacy with a cutoff point of 33.7%, sensitivity of 0.73, and specificity of 0.67 (p = 0.030).CONCLUSION:
Tolvaptan facilitated early improvement of postoperative fluid overload after cardiovascular surgery.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Desequilíbrio Hidroeletrolítico
/
Benzazepinas
/
Ponte Cardiopulmonar
/
Antagonistas dos Receptores de Hormônios Antidiuréticos
/
Procedimentos Cirúrgicos Cardíacos
Tipo de estudo:
Etiology_studies
/
Observational_studies
/
Risk_factors_studies
Limite:
Aged
/
Female
/
Humans
/
Male
Idioma:
En
Revista:
J Cardiothorac Vasc Anesth
Assunto da revista:
ANESTESIOLOGIA
/
CARDIOLOGIA
Ano de publicação:
2016
Tipo de documento:
Article