Cells, tissues and organs surveillance system (CTOSS), 2018-2019
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Organization: Public Health Agency of Canada
Date published: 2022-06-15
CTOSS project is to monitor the adverse events related to cells, tissues, and organs transplantations in Canada.
This project started in 2011. Currently it only covers tissue transplants. The Project Progress Report: April 2007 – December 2013 contains a detailed methodology of surveillance.
30% of the tissues transplanted in Canada are monitored through 5 participating sites in CTOSS.
50,899 tissues were transplanted during 2011-2019 and 19,113 tissues were transplanted during 2018-2019.
26 transplantation adverse events (TAEs) were reported during 2011-2019 and 9 TAEs observed during 2018-2019.
Figure 1: total tissues transplanted based on tissue types, CTOSS 2018-2019
- Bone: 8,501
- Skin: 4,360
- Ocular tissue: 3,993
- Tendon: 1,674
- Heart valve: 585
- Total: 19,113
Figure 2: types of adverse events reported CTOSS 2011-2019
- Ocular tissue: 13 TAEs, 50%
- Bone: 9 TAEs, 35%
- Tendon: 3 TAEs, 11%
- Heart valve: 1 TAE, 4%
Figure 3 (map of Canada): number of tissues transplanted by provinces CTOSS 2018-2019
Tissues Transplanted 2018-2019
| Province | Number of tissues transplanted |
|---|---|
| Northern Alberta Regions* | 4,391 |
| Sunnybrook Health Science Centre at Toronto | 1,164 |
| Quebec | 10,762 |
| New Brunswick | 595 |
| Nova Scotia | 2,201 |
* For Alberta, AB Health Services covers Northern Alberta regions.
The incidence rates of tissue-related adverse events in Canada are low, similar to other developed countries.