Optimal Respiratory Rate for Low-Tidal Volume and Two-Lung Ventilation in Thoracoscopic Bleb Resection.
J Cardiothorac Vasc Anesth
; 29(4): 972-6, 2015 Aug.
Article
en En
| MEDLINE
| ID: mdl-25440636
ABSTRACT
OBJECTIVES:
One-lung ventilation is considered to be mandatory in video-assisted thoracoscopic surgery. However, the authors showed in a previous report that two-lung ventilation with low tidal volume is feasible in thoracoscopic bleb resection (TBR). In this study, they evaluated optimal respiratory rate during TBR under two-lung ventilation with low-tidal volume anesthesia.DESIGN:
A prospective, randomized, single-blinded intervention study.SETTING:
An operating room in a teaching hospital.PARTICIPANTS:
Forty-eight patients who underwent scheduled TBR under general anesthesia.INTERVENTIONS:
TBR was performed under low-tidal-volume (5 mL/kg), two-lung ventilation. Respiratory rate (RR) varied according to the protocol 15 (group I), 18 (group II), and 22 cycles/min (group III). Using block randomization method, 16 patients were assigned to each of 3 groups. MEASUREMENTS AND MAINRESULTS:
Minute ventilation of group I was lowered significantly compared with the other groups (p<0.001). The results of arterial blood gas analysis were in the physiologic range in all patients. Surgery and anesthetic times and number of endostaples used were not significantly different among the 3 groups.CONCLUSIONS:
The RR of 15 cycles/min with low-tidal volume (5 mL/kg) and two-lung ventilation did not produce abnormal physiologic changes including arterial pH, partial arterial oxygen pressure, and partial pressure of carbon dioxide and guaranteed an optimal surgical field. Therefore, these setting are considered acceptable for two-lung ventilation during TBR.Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Respiración Artificial
/
Volumen de Ventilación Pulmonar
/
Cirugía Torácica Asistida por Video
/
Frecuencia Respiratoria
Tipo de estudio:
Clinical_trials
/
Observational_studies
Límite:
Adolescent
/
Adult
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
J Cardiothorac Vasc Anesth
Asunto de la revista:
ANESTESIOLOGIA
/
CARDIOLOGIA
Año:
2015
Tipo del documento:
Article