Non-invasive Ventilation
Conditions
Keywords
Non-invasive Ventilation, trigger asynchronies, autotriggering, bench study
Brief summary
NIV can be combined with other treatments that require to introduce gas into the circuit during the treatment. This external gas produces trigger asynchronies that worse depending on the model ventilator, trigger design and gas source. It is advisable to monitor NIV when these treatments are requiring in chronic NIV.
Interventions
DEVICEexternal gas during NIV
The procedure was performed in the patient's room during his or her hospital stay to avoid additional visits for study participation. The patient was placed in the supine position, and the usual ventilator interface was placed in a single-limb system, along with the commercial ventilator to be studied. The ventilator model were evaluated at bedside in random order. The parameters of the ventilator were the same as those that the patients used at home (that is, unlike the bench study, the sensitivity of the trigger was not modified). A external polygraph was used to moritor the study, with the incorporation of thoracic and abdominal bands and parasternal electromyography, to better evaluate asynchronies, in addition to pulse oximetry control. The ventilation periods were 1 minute (without gas, gas, without gas). This sequence was performed twice in each group of established conditions.
Sponsors
Corporacion Parc Tauli
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No
Inclusion criteria
* over 18 years of age, * hospital admission for acute chronic respiratory failure, * home NIV (single-limb system with intentional leakage) users for more than 6 months with adequate compliance (greater than or equal to 5 hours/night).
Exclusion criteria
* Patients with underlying psychiatric disease were excluded
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Asynchronies ( yes or no) | 1 day | Presence of asynchronies identify by SOMNONIV´s algorithm during the gas treatment with NIV |
| Type of asynchronies | 1 day | autotrigger or innefective effort identify by SOMNONIV´s group algorithm, during the gas treatment with NIV |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Type of asynchronies pre | 1 day | autotrigger or innefectuve effort identify by SOMNONIV´s group pre gas during NIV treatment |
| Type of asynchronies post | 1 day | autotrigger or innefective effort identify by SOMNONIV´s group algorithm, , post gas during NIV |
| Asynchronies ( yes or no) pre | 1 day | Presence of asynchronies identify by SOMNONIV´s algorithm during pre-gas treatment with NIV |
| Asynchronies ( yes or no) post | 1 day | Presence of asynchronies identify by SOMNONIV´s algorithm during the post gas treatment with NIV |
Countries
Spain
Outcome results
None listed