Early risk prognosis of free-flap transplant failure by quantitation of the macrophage colony-stimulating factor in patient plasma using 2-dimensional liquid-chromatography multiple reaction monitoring-mass spectrometry.
Although great success of microvascular free-flap transplantation surgery has been achieved in recent years, between 1.5% and 15% of flaps are still lost due to vascular occlusion. The clinical challenge remains to salvage a transplant in the case of vascular complications. Since flap loss is devastating for the patient, it is of utmost importance to detect signs of complications or of conspicuities as soon as possible. Rescue success rates highly depend on early revision. In this study, we collected blood samples during transplantation surgery from either the contributory artery or the effluent vein of the flap and applied a targeted mass spectrometry-based approach to quantify 24 acute phase proteins, cytokines, and growth factors in 63 plasma samples from 21 hospitalized patients, generating a dataset with 9450 protein concentration values. Biostatistical analyses of the targeted plasma protein concentrations in all 63 plasma samples showed that venous concentrations of macrophage colony-stimulating factor (M-CSF) provided the highest accuracy for discriminating patients with either clinical conspicuities or complications from control individuals. Using 21.33 ng/mL of M-CSF as the diagnostic threshold when analyzing venous blood plasma samples, the assay obtained a sensitivity of 0.93 and a specificity of 0.85 with an area under the curve value of 0.902 in the receiver operating characteristic analysis. Overall, our results indicate that M-CSF is a potential molecular marker for early risk prognosis of free-flap transplant failure.
aProteome Center Rostock, University Medicine and Natural Science Faculty, University of Rostock, Rostock bDivision of Plastic Surgery and Hand Surgery, HELIOS Clinic Emil von Behring, Berlin, Germany cUniversity of Victoria - Genome British Columbia Proteomics Center, Vancouver Island Technology Park dDepartment of Biochemistry and Microbiology, University of Victoria, Victoria, BC, Canada.
Jingzhi
J
Yang
Juliane C
JC
Finke
Juncong
J
Yang
Andrew J
AJ
Percy
Uwe
U
von Fritschen
Christoph H
CH
Borchers
Michael O
MO
Glocker
D000328:Adult; D000368:Aged; D002853:Chromatography, Liquid; D016207:Cytokines / Q000378:metabolism; D005260:Female; D006801:Humans; D036341:Intercellular Signaling Peptides and Proteins / Q000378:metabolism; D016173:Macrophage Colony-Stimulating Factor / Q000378:metabolism*; D008297:Male; D013058:Mass Spectrometry; D008875:Middle Aged; D064847:Multimodal Imaging; D055031:Primary Graft Dysfunction / Q000097:blood* / Q000175:diagnosis*; D011379:Prognosis; D012372:ROC Curve; D012306:Risk; D012680:Sensitivity and Specificity; D013524:Surgical Flaps / Q000009:adverse effects*
D016207:Cytokines; D036341:Intercellular Signaling Peptides and Proteins; D016173:Macrophage Colony-Stimulating Factor
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