Abstract
Purpose
To elucidate the clinical impact of pathogenic organism (PO) positivity early after transplantation, we evaluated the impact of perioperative airway POs on outcomes after living-donor lobar lung transplantation (LDLLT), where the graft airway is supposed to be sterile from a healthy donor.
Method
A retrospective review of 67 adult LDLLT procedures involving 132 living donors was performed. Presence of POs in the recipients’ airways was evaluated preoperatively and postoperatively in intensive-care units.
Results
POs were detected preoperatively in 13 (19.4%) recipients. No POs were isolated from the donor airways at transplantation. POs were detected in 39 (58.2%) recipients postoperatively; most were different from the POs isolated preoperatively. Postoperative PO isolation was not associated with short-term outcomes other than prolonged postoperative ventilation. The 5-year overall survival was significantly better in the PO-negative group than in the PO-positive group (89.1% vs. 63.7%, P = 0.014). In the multivariate analysis, advanced age (hazard ratio [HR]: 1.041 per 1-year increase, P = 0.033) and posttransplant PO positivity in the airway (HR: 3.684, P = 0.019) significantly affected the survival.
Conclusions
The airways of the living-donor grafts were microbiologically sterile. PO positivity in the airway early after transplantation negatively impacted long-term outcomes.
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Abbreviations
- Abx:
-
Antibiotic drug
- BMI:
-
Body mass index
- BOS:
-
Bronchiolitis obliterans syndrome
- CI:
-
Confidence interval
- CLAD:
-
Chronic lung allograft dysfunction
- DDLT:
-
Deceased-donor lung transplantation
- HR:
-
Hazard ratio
- ICU:
-
Intensive-care unit
- IVIG:
-
Intravenous immunoglobulin
- LDLLT:
-
Living-donor lobar lung transplantation
- LOS:
-
Length of stay
- OS:
-
Overall survival
- PO:
-
Pathogenic organism
- POD:
-
Postoperative day
- PTLD:
-
Posttransplant lymphoproliferative disorders
- RAS:
-
Restrictive allograft syndrome
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Acknowledgements
This work was supported by the SPIRITS 2021 of Kyoto University and the Japan Society for the Promotion of Science KAKENHI (20H03769).
Funding
This work was supported by SPIRITS 2021 of Kyoto University and Japan Society for the Promotion of Science KAKENHI (20H03769).
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HO conceived the primary hypothesis, designed the research, collected and analyzed the data, and wrote the manuscript. ST conceived the primary hypothesis, designed the research, analyzed the data, and wrote the manuscript. TFCY conceived the primary hypothesis, designed the research, and wrote the manuscript. Y. collected and analyzed the data and wrote the manuscript. YY, YY, DN, MH, AO, and TM contributed to the methodology and edited the manuscript. MN analyzed the data, contributed to the methodology, and edited the manuscript. HD supervised the research and edited the manuscript.
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This study was approved by the Institutional Review Board of the Kyoto University Hospital (R2389), and informed consent was waived because of the retrospective nature of the study. Opt-out was not requested from any patients.
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Oda, H., Tanaka, S., Chen-Yoshikawa, T.F. et al. Impact of perioperative airway pathogens on living-donor lobar lung transplantation outcomes. Surg Today 54, 266–274 (2024). https://doi.org/10.1007/s00595-023-02730-9
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DOI: https://doi.org/10.1007/s00595-023-02730-9