603.3 & 604.5_URMC_HTC_Lung and Lobe Processing for SenNet
Gloria S Pryhuber, Heidie Huyck
Abstract
Purpose and Scope of the Procedure
- Standardize process for processing lung donations into components for storage and distribution
- Scope: coordination of receipt and gross dissection of tissue
Steps
Assemble Team and Materials as needed for processing, to accomplish: i.CT Scan
ii.Separation of Lobes
iii.Tissue Dissociation
iv.Formalin Inflation
v.OCT /CMC Inflation
vi.Paraformaldehyde Inflation
Record details of procedures in Worksheets.
Unpacking
Shipped package is opened on arrival to remove a blood sample, if provided, as it should be kept at room temperature.
The remainder of the package is to be kept in cold room until processing begins to maintain approximately 4°C
temperature of tissue.
Determine BRINDL PID to assign to tissues and images by clicking the “arrived” button in BRINDL Screening log
Record Information on Shipping Labels in Database or worksheet for entry ASAP
i.UNOS \#; Referring Company \#
ii.Courier and Tracking Numbers
Remove Shipping Labels from package; place aside to be added to Sample File
Open Shipping Box and Remove Styrofoam Cover
i.Note Condition of Packing in Database (ice sufficient, layered packaging, no leakage, etc.)
6.Open container containing tissue and move lung tissue to a clean plastic bag on ice.
i.Note Condition of Lung Tissue in Database
1.Is tissue submerged (usually in plastic bag, inside a hard plastic container)
2.Are Trachea and both lungs included and intact
3.Is Trachea Occluded, if so how
4.Are Thymus, Spleen, Blood Sample, Lymph Nodes included?
Grossing of Tissues
Maintain tissues in transplant buffer on ice. Prevent open Trachea from being submerged , +/- ETT removal
Weigh intact organ as sent; Continue to Record all measurements and procedures in Worksheet or directly in BRINDL database
Determine displacement volume without inflation
Determine plan for organ lobes ie which to be inflated or infused and which to be dissociated
Remove excess tissues around trachea and large airways at hilum
Collect lymph nodes, excess large vessels, esophagus and nerves
(Best to place these back in storage buffer and Tend to Lung First)
1. Weigh each tissue collected
2. The non-lung samples are sectioned into approximately 0.5-1 cm3 portions
3. Divide these tissues between
9. 10% formalin, place in labeled tissue cassette in formalin
Store at `4°C` to fix for 44-48 hrs,
Section at mid-time.
Volume of fixative to tissue should be approximately 10:1.
ii. PFA: place in 4%PFA stored at `4°C` to fix for 20-28 hours before moving to 30%Sucrose
4. Record these tissues and how processed in BRINDL database
Dissect free the bronchial branches, identify pulmonary arteries and veins
Divide airways and vessels to obtain 5 independent lung lobes
Weigh each lobe once isolated
Proceed with processing for each lobe as using appropriate Protocols
Prepare accompanying tissue such as thymus, spleen, esophagus, blood, heart, in similar fashion with specific as outlined in the appropriate Protocol / SOP.