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Minerva Surgery 2022 August;77(4):391-8

DOI: 10.23736/S2724-5691.22.09576-4


language: English

The role of donor-recipient gender matching in lung transplantation: a systematic review

Giuseppe MANGIAMELI 1, 2 , Antoine LEGRAS 1, Alex ARAME 1, Charbel AL ZREIBI 1, Antonio MAZZELLA 1, Françoise LE PIMPEC BARTHES 1, 3, 4

1 Division of Thoracic Surgery and Lung Transplantation, Georges Pompidou European Hospital, Assistance Publique-Hôpitaux de Paris (APHP), Paris, France; 2 Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy; 3 Centre de Recherche des Condeliers, INSERM UMR-S 1138, Sorbonne University, Paris, France; 4 University of Paris, Paris, France

INTRODUCTION: Donor to recipient (D-R) matching in lung transplantation (LTx) is firstly directed by blood group (identity or compatibility), immunological status and morphological criteria. Sex matching is ignored and impact on outcome less investigated.
EVIDENCE ACQUISITION: Systematic review of English literature using PubMed (1990-2019) was performed to evaluate the potential role of D-R matching in determining long-term outcome in patients after LTx. Search terms included (LTx) AND (sex) OR (gender) OR (matching) OR (mismatch) OR (donor characteristics) and were restricted to articles’ title. Only articles directly reporting LTx survival outcome according to gender match/mismatch and D-R gender combination in LTx were included. Two authors independently extracted articles using predefined data fields, including study quality indicators. MOOSE Guidelines for Meta-Analyses and Systematic Reviews of Observational Studies applied.
EVIDENCE SYNTHESIS: Nine articles were analyzed and included into this study. All studies analyzed the effect of the different D-R gender combinations on survival while seven of them investigated exclusively the role of sex matching on LTx outcome. In this latter group two out of seven showed a trend towards an overall survival advantage for sex matching LTx combination. The worst survival results were reported for F to M gender combination in 3 studies and for M to F gender combination by 1 study. No differences were reported in remaining 4 studies.
CONCLUSIONS: This systematic review suggests that sex matching and several gender combinations could play a role in determining overall survival rate after LTx. Data deriving from unbiased studies supported that matching female-female (F-F) and male-male (M-M) could improve LTx outcome while FD-MR combination should be avoided. Unfortunately, a good part of the analyzed data are affected by bias due to confounding factors. Up-to-date immunological, hormonal and morphological factors could explain the gender-based difference in LTx outcome. Further investigations should clarify their role and importance to define the effects of gender combinations on survival.

KEY WORDS: Lung transplantation; Surgical procedures, operative; Systematic review

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