High-Flow Nasal Cannula Therapy as an Adjuvant Therapy for Respiratory Support during Endoscopic Techniques: A Narrative Review.

High-flow nasal cannula (HFNC) is a respiratory support technique that delivers a controlled concentration of oxygen with high flow, heat, and humidity via the nasal pathway. As it has many physiological effects, its use has increased for a variety of clinical indications; however, there is limited guidance on using HFNC as a respiratory support tool during endoscopic procedures. We conducted a narrative review to evaluate the effect of HFNC as an adjuvant tool during fiberoptic bronchoscopy (FOB), upper gastrointestinal tract endoscopy, and surgical procedures in adults.

Beyond forced exhalation: impulse oscillometry as a promising tool for bronchial hyperresponsiveness evaluation.

The multiple forced expiratory maneuvers that must be performed during methacholine test require a high degree of collaboration and can lead to fatigue. However, impulse oscillometry (IOS) is a noninvasive test, quick and easy to perform, that does not require effort-dependent maneuvers. The primary endpoint was to evaluate the relationship between IOS and spirometry during the methacholine test.

[Intermediate Respiratory Care Units: Questions and Answers].

The intermediate respiratory care units (UCRI) are areas of monitoring and specialized care of patients with acute or chronic-exacerbated respiratory failure, whose severity does not require admission to an intensive care unit, but which due to their complexity cannot be treated in conventional hospitalization. Although the COVID-19 pandemic has proven its usefulness in the management of critical respiratory patients, the historical trajectory of the UCRI comes from many years ago, in which its cost-effectiveness has been demonstrated by far. This document presents a series of questions and answers on the history of the UCRI, in addition to the criteria for admission, infrastructure, human and technical resources, and the types of existing Units.

Long-Term Effect of Noninvasive Ventilation on Diaphragm in Chronic Respiratory Failure.

Purpose: Home non-invasive ventilation (NIV) is recommended in patients with COPD and hypercapnic chronic respiratory failure (HCRF). The mechanism by it can improve alveolar ventilation during spontaneous breathing is not yet completely explained. Our aim is to evaluate the impact of on diaphragm muscle function in a series of patients with HCRF.