Noninvasive Ventilation Before Maximum Exercise Test Increases Exercise Tolerance in Subjects With Heart Failure: A Crossover Study

Can Non-invasive Ventilation Modulate Cerebral, Respiratory, and Peripheral Muscle Oxygenation During High-Intensity Exercise in Patients With COPD-HF?

“…In our study, we found that NIPPV provided an increase of 6 mlO 2 •kg −1 •min −1 in VO 2 , 9 ml/min in VE , and 2% in SpO 2 when compared with SHAM ventilation during exercise. Currently, a minimum detectable difference of 1.02 mlO 2 •kg −1 •min −1 for VO 2 indicates a successful intervention (21), a threshold well-surpassed in the current study supporting the use of NIPPV during exercise in patients with COPD-HF. We believe that the results of the current study can be explained by the following: (1) an increase in pleural pressure fluctuations as a result of increased ventilatory demand during exercise; and (2) the increase of 8-12 cmH 2 O in IPAP and Two-way variance analysis with Bonferroni post-hoc.…”

“…4-6 cmH 2 O in PEEP increased the cardiac function and improved blood supply, both favorably impacting the exercise performance (21).…”

Noninvasive Ventilation as an Important Adjunct to an Exercise Training Program in Subjects With Moderate to Severe COPD

“…39 The gain in exercise capacity indicated by the maximum V O 2 increase of 4.9 mL/kg/min observed in this study is probably due to the use of NIV because the use of positive pressure tends to improve cardiac function and regional vascular distribution, in addition to reducing the transmural pressure gradient and the left ventricular afterload, which allows the improvement of blood supply to the periphery, subsequently allowing individuals to gain exercise capacity. 40 Carvalho et al 40 showed that the minimum detectable difference calculated for maximum V O 2 was 1.02 mL/kg/min. A maximum V O 2 increase of 2.2 mL/kg/min was observed, corresponding to a gain of 12.3% in the NIV phase compared with the control phase.…”

Inspiratory Muscle Strength in Chagas Cardiomyopathy: A Systematic Scoping Review

“…All included articles exclusively studied CC-diagnosed patients, except for two of them 19,20 , in which CC patients represented only 40% and 17% of all samples, respectively. To assess the severity of cardiac disease, studies have used the CC stage (3), the presence of HF (5), or NYHA (7).…”

“…However, this evidence of benefits has not yet been confirmed in the CC population. In this scoping review, three randomized clinical trial studies were included related to the effect of aerobic training with or without peripheral muscle training in CRP [21][22][23][24] , non-invasive ventilation 20 , and hemodynamic responses of two IMT protocols 25 . Interestingly, of the three studies that investigated the effects of CRP, only one analyzed the MIP values with respect to the predicted values.…”