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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT01090986
Other study ID # PR02/02/2007
Secondary ID
Status Completed
Phase N/A
First received March 19, 2010
Last updated February 21, 2014
Start date June 2006

Study information

Verified date February 2014
Source Fundació Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau
Contact n/a
Is FDA regulated No
Health authority Spain: Ethics Committee
Study type Observational

Clinical Trial Summary

Non invasive ventilation (NIV) usually presents air leaks that may determine the result of this treatment. The clinical usefulness of analyzing (and quantifying) these leaks during the adaptation period to NIV has not been evaluated in prospective clinical studies as a predictive data of treatment effectiveness. Our hypothesis is that air leaks are correlated to a successful adaptation to NIV. And air leak magnitude may predict early failures of this treatment. And also, as we do not know if air leaks change during the adaptation period to NIV, we do not know whether early detection of air leaks plays a role in the therapeutic outcome. Our objective is to evaluate the clinical usefulness of quantifying air leaks during the adaptation period to NIV as a predictor of effectiveness of this treatment. We also want to evaluate the correlation between air leaks and clinical-functional patients' profile, and the ventilatory parameters selected and to evaluate air leaks variability during the adaptation period to NIV. Method: We will determine the air leak magnitude in twenty patients during adaptation to NIV. We will use VPAP III ventilators (ResMed, Australia), commercial nasal masks (Mirage o Ultra Mirage) and VPAP III/ResLinkTM (ResMed, North Ryde, Australia), a device that includes a monitoring system coupled with the VPAP III ventilator. This device allows to record air leaks and other ventilation parameters. We will perform four VPAP III/ResLinkTM recordings in each patient (the last night in hospital during the adaptation period, the first night at home, and one and two months later, after the initiation of NIV treatment). We will also perform a complete pulmonary function test, quality-of-life questionnaire (SF36), and a tolerance to NIV questionnaire in all patients at the onset of NIV treatment and two months later. We will evaluate which patients will need to change treatment at the end of the adaptation period to NIV. We also will analyze and compare air leaks magnitude in each of the four recordings stated above.


Recruitment information / eligibility

Status Completed
Enrollment 20
Est. completion date
Est. primary completion date July 2013
Accepts healthy volunteers No
Gender Both
Age group N/A and older
Eligibility Inclusion Criteria:

- Patients with a restrictive pulmonary disease (slow evolution neuromuscular or thorax cage diseases, obesity or nocturnal hypoventilation) and hypercapnic chronic respiratory failure with standard criteria for NIV.

- COPD patients who need NIV because of another reason (obesity, nocturnal hyperventilation or nocturnal hypercapnic response to oxygen).

- PaCO2 = de 50 mmHg.

- Clinically stable (at least for one month).

- Possibility to fit a nasal mask for NIV treatment (ultra mirage, mirage).

Exclusion Criteria:

- Rapid evolution neuromuscular disease (Amyotrophic Lateral Sclerosis).

- Serious comorbidity.

- Lack of patients comprehension or collaboration.

- Inability to fit a nasal mask for NIV treatment (ultra mirage, mirage).

- Treatment compliance < 4h/d.

Study Design

Observational Model: Case-Only, Time Perspective: Prospective


Locations

Country Name City State
Spain Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau Barcelona

Sponsors (1)

Lead Sponsor Collaborator
Fundació Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau

Country where clinical trial is conducted

Spain, 

Outcome

Type Measure Description Time frame Safety issue
Primary Clinical usefulness of quantifying AIR LEAKS during the adaptation period to NIV as a predictor of effectiveness (pCO2 EVOLUTION) of this treatment. One year No
Secondary - Air leaks AND patients' characteristics.- Some indices (air leaks/inspiratory pressure...)and NIV effectiveness. - Air leak evolution.- Air leaks and patients' tolerance to NIV. One year Yes
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