Lung Diseases, Interstitial
Conditions
Keywords
Cryoprobes, Transbronchial lung biopsy, Cryobiopsy
Brief summary
The purpose of this study is to evaluate the diagnostic yield and safety of transbronchial lung biopsies (TBLB) with cryoprobe versus conventional forceps in patients with diffuse lung disease.
Interventions
Transbronchial lung biopsy with cryoprobe and with conventional forceps.
Sponsors
Study design
Eligibility
Inclusion criteria
* \>18 years old * Patients with diffuse lung disease candidate to study with transbronchial lung biopsy (TBLB). * Inform consent signed.
Exclusion criteria
* FEV1 \<40% of reference value. * Respiratory insufficiency (pO2 \<60 mmHg or pCO2 \>45 mmHg). * Use of anticoagulant therapy or presence of a coagulation (disorder abnormal platelets counts, international normalized ratio \> 1.5). * Bullous emphysema. * Pulmonary arterial hypertension. * Hypersensitivity to anaesthetic and sedative drugs (lidocaine, midazolam, propofol, remifentanyl). * Psychiatric illness. * Comorbidities that could increase the risk of the TBLB. * Pregnancy.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Diagnostic yield of transbronchial lung biopsy (TBLB) | 24 months | Comparing those TBLB obtained by cryoprobes versus conventional forceps (number of diagnosis with each technique). |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Histological quality of samples as defined the presence of alveolar units in each sample. Composite measure. | 24 months | The quality of samples are defined by the size, presence of artifacts and presence of alveolar units in each sample. |
| Safety related to the procedure of the TBLB obtained by cryoprobe compared with conventional forceps assessed by chest radiography. | 24 months | Chest radiography after TBLB. |
| Safety related to the procedure of the TBLB obtained by cryoprobe compared with conventional forceps assessed by control of bleeding. | 24 months | Control of bleeding during procedure. |
Countries
Spain