Lung Diseases
Conditions
Keywords
Lung, cryobiopsy, cryoablation, transbronchial intervention
Brief summary
Developing a standardized methodology for the use of novel cryogenic catheters for transbronchial cryobiopsy and cryoablation of pulmonary lesions.
Detailed description
Surgical lung biopsy (SLB) and surgical resection are the current gold standard for both tissue sampling and ablation of pulmonary lesions. Albeit the use of minimally invasive surgical techniques (VATS), these interventions are frequently associated with complications which include: prolonged air leak, pneumonia, prolonged length of stay in the intensive care unit as well as an increased mortality rate which is influenced by the nature (elective vs non-elective) of the case. To reduce trauma to patients, transbronchial interventions are becoming increasingly popular. However, current techniques have only been demonstrated in humans for lung biopsy and often provide lesser quality specimens than SLB. Promising results have been achieved using cryotechnology but a standardized technique has yet to be established. To demonstrate the potential for transbronchial interventions using cryo, we aim to develop a standardized technique for transbronchial cryobiopsy and cryoablation of pulmonary lesions using a human ex-vivo model.
Interventions
DIAGNOSTIC_TESTCryo Ex Vivo
Lungs from patients undergoing lung transplantation after their removal from the recipient patient with previous informed consent signed before transplantation will be obtained. The organs will be placed in an acrylic box and will be kept at a temperature of 37 Celsius degrees. The lungs will be mechanically ventilated connected by an endotracheal tube size 8 inserted in the bronchus with the balloon inflated and a silk suture providing a hermetic closure proximal to the balloon. Tissue samples will be taken from the models and images will be performed.
Sponsors
Centre hospitalier de l'Université de Montréal (CHUM)
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* Patients undergoing lung transplant surgery
Exclusion criteria
* Organ donor ineligible to donate lungs * Healthy individuals
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Measure of Pleural breakage (Absent or Present) | 48 months | Develop a standardized methodology for the use of novel cryoprobes for transbronchial lung biopsies and ablation of pulmonary lesions |
| Temperature of ice ball at center; Temperature of ice ball at periphery; Temperature of ice ball at varying distances from ice ball | 48 months | Develop a standardized methodology for the use of novel cryoprobes for transbronchial lung biopsies and ablation of pulmonary lesions |
| Model of cryogen | 48 months | Develop a standardized methodology for the use of novel cryoprobes for transbronchial lung biopsies and ablation of pulmonary lesions |
| Freezing Time | 48 months | Develop a standardized methodology for the use of novel cryoprobes for transbronchial lung biopsies and ablation of pulmonary lesions |
| Size of resected specimen | 48 months | Develop a standardized methodology for the use of novel cryoprobes for transbronchial lung biopsies and ablation of pulmonary lesions |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Blood loss and complication | 48 months | Feasibility of transbronchial lung cryobiopsy and cryoablation |
Countries
Canada
Contacts
CONTACTMoishe Liberman, MD
CONTACTAdeline Jouquan, MSc
Outcome results
None listed