Prospective Evaluation of Needle Exsufflation for Pneumothorax

Study Overview
=================
Brief Summary
-----------------
Monocentric observational study of needle exsufflation for pneumothorax in the ICU.

Detailed Description
-----------------
The main objective of this prospective observational non interventional study is to investigate a possible relationship between prior duration of pneumothorax (defined as the duration from first occurence of chest pain reported by patient to exsufflation) and the success of exsufflation procedure (defined by the absence of a chest tube insertion in the following 24h).

Official Title
-----------------
Impact of Pneumothorax Duration Before Treatment on the Success of Needle Exsufflation

Conditions
-----------------
Pneumothorax

Participation Criteria
=================
Eligibility Criteria
-----------------
Inclusion Criteria: adult ICU patients requiring needle exsufflation for spontaneous pneumothorax Exclusion Criteria: refuse to participate contraindications to needle exsufflation (acute respiratory failure requiring immediate chest tube insertion)

Ages Eligible for Study
-----------------
Minimum Age: 18 Years

Sexes Eligible for Study
-----------------
All

Accepts Healthy Volunteers
-----------------
No

Study Plan
=================
How is the study designed?
-----------------
What is the study measuring?
-----------------
Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Number of patients with early success of needle exsufflation | success of needle exsufflation is defined as the absence of chest tube insertion requirement within 24hrs following needle exsufflation | 24 hrs | 
| Number of patients with early success of needle exsufflation with duration of symptoms prior to exsufflation greater than 48 hrs | success of needle exsufflation is defined as the absence of chest tube insertion requirement within 24hrs following needle exsufflation; duration of symptoms prior to exsufflation is the time (in hrs) elapsed between first chest pain reported by the patient and needle exsufflation | 24 hrs | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Length of ICU stay | participants will be followed for the duration of ICU stay, from ICU admission to ICU discharge, an expected average of 8 days | 8 days | 
| Length of hospital stay | participants will be followed for the duration of hospital stay, from hospital admission to hospital discharge, an expected average of 15 days | 15 days | 
| Number of patients requiring early surgical pleurodesis because of persistent pneumothorax | Patients will be monitored for eventual need for surgical pleurodesis during their ICU stay because of persistent or worsening pneumothorax | 8 days | 
| Number of patients with late exsufflation failure | late exsufflation failure is defined as patients requiring chest tube insertion at least 24 hrs after needle exsufflation because of persistent or worsening of pneumothorax despite initial early success | 8 days | 

 Terms related to the study
=================
Keywords Provided by Centre Hospitalier Valida
-----------------
pneumothorax