2024年7月6日 · Spontaneous breathing trials (SBT) are used to identify patients who are likely to fail liberation from mechanical ventilation. SBT is “the defacto litmus test for determining readiness to breathe without a ventilator”

Predicts successful extubation, to be used only as a single component of the clinical picture.

Yang and Tobin described RSBI as the ratio of respiratory rate (RR) to tidal volume (VT), with a threshold value of >105 breaths/min/L being highly predictive of weaning failure, while RSBI <105 breaths/min/L is associated with weaning success. Our review examines the existing literature on the utility of RSBI in predicting successful weaning.

2024年5月26日 · Use of the protocolized SBT ventilator settings improved significantly from 18% to 83% (P ≤ .001). Patients who started an SBT before 9 am increased from 41% to 67% (P = .097), and the median duration of SBT decreased from 211 to 64 min (P = .008).

Using Grading of Recommendations Assessment, Development, and Evaluation (GRADE) methodology, we make the following recommendations: (1) We suggest that calculation of a rapid shallow breathing index is not needed to determine readiness for a spontaneous breathing trial (SBT) (conditional; moderate certainty); (2) We suggest that SBTs can be con...

RSBI全名是 rapid shallow breathing index，也就是評估如果讓病人脫離呼吸器自行呼吸的話，其呼吸型態是否會趨於"淺快呼吸"的一個指標。 根據15-20年前幾個非常經典的研究，發現所有在ICU脫離呼吸器的病人之中，有一些在幾個小時後就會因呼吸衰竭而再度插管/接回呼吸器，而這些失敗的病人在最後重新插管時的呼吸型態都是非常淺快的。 所以如果病人在脫離呼吸器之前能做一個簡單的測試，可評估此病人自行呼吸時是否會趨於淺快呼吸，這樣可以對病人做一個初步的 …

First described by Yang & Tobin in 1991, 3 the RSBI allows assessment of respiratory mechanics by f/V T. The RSBI was designed to be measured during spontaneous breathing for 60 s with a spirometer connected to the artificial airway before an SBT. An RSBI of less than 105 breaths/L predicts successful weaning from MV. 3 , 11 , 14.

A protocol using coordinated SAT and SBT can significantly reduce the number of days patients are on mechanical ventilation.

RSBI, as a screening indicator, can identify the time to start SBT as early as possible (Trivedi et al., 2022). RSBI can also be combined with other indicators and tests to help clinicians determine the timing of extubation.

2021年6月25日 · As a stand-alone test, the RSBI has moderate sensitivity and poor specificity for predicting extubation success. Future research should evaluate its role as a permissive criterion to undergo a spontaneous breathing trial (SBT) for patients who are at intermediate pretest probability of passing an SBT.