The journal of obstetrics and gynaecology research · 2023
Diagnostic accuracy of amniotic fluid interleukin-6 for fetal inflammatory response syndrome.
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Ohkuma Kana, Ono Takeshi, Oshima Yuko, So Kunio, Tsumura Keisuke, Yamasaki Fumio, Nakura Yukiko, Yanagihara Itaru, Nomiyama Makoto, Yokoyama Masatoshi
Аннотация
AIM: This study aimed to clarify the diagnostic accuracy of amniotic fluid interleukin-6 for fetal inflammatory response syndrome (FIRS).
METHODS: This retrospective cohort study was conducted in a single institution and targeted cases of preterm birth within 24 h after amniocentesis among singleton cases that underwent amniocentesis at our hospital for suspected intraamniotic inflammation (IAI) from gestational ages of 22-36 weeks between August 2014 and March 2020. FIRS was defined as >11.0 pg/mL of umbilical cord blood interleukin-6.
RESULTS: The analysis included 158 pregnant women. There was a strong correlation between amniotic fluid interleukin-6 and umbilical cord blood interleukin-6 (r = 0.70, p < 0.001). The area under the receiver operating characteristic curve of amniotic fluid interleukin-6 for FIRS was 0.93, with a cutoff value of 15.5 ng/mL, and showed high sensitivity and specificity (0.91 and 0.88, respectively). An amniotic fluid interleukin-6 cutoff value of ≥15.5 ng/mL was associated with a significant risk of FIRS (adjusted odds ratio: 27.9; 95% confidence interval: 6.3-123.0; p < 0.001).
CONCLUSIONS: The results of this study show that amniotic interleukin 6 alone can be used to diagnose FIRS prenatally. While there is a need for validation, it may be possible to treat IAI while preventing damage to the central nervous and respiratory systems in the uterus by keeping the amniotic fluid interleukin-6 below the cutoff value.
METHODS: This retrospective cohort study was conducted in a single institution and targeted cases of preterm birth within 24 h after amniocentesis among singleton cases that underwent amniocentesis at our hospital for suspected intraamniotic inflammation (IAI) from gestational ages of 22-36 weeks between August 2014 and March 2020. FIRS was defined as >11.0 pg/mL of umbilical cord blood interleukin-6.
RESULTS: The analysis included 158 pregnant women. There was a strong correlation between amniotic fluid interleukin-6 and umbilical cord blood interleukin-6 (r = 0.70, p < 0.001). The area under the receiver operating characteristic curve of amniotic fluid interleukin-6 for FIRS was 0.93, with a cutoff value of 15.5 ng/mL, and showed high sensitivity and specificity (0.91 and 0.88, respectively). An amniotic fluid interleukin-6 cutoff value of ≥15.5 ng/mL was associated with a significant risk of FIRS (adjusted odds ratio: 27.9; 95% confidence interval: 6.3-123.0; p < 0.001).
CONCLUSIONS: The results of this study show that amniotic interleukin 6 alone can be used to diagnose FIRS prenatally. While there is a need for validation, it may be possible to treat IAI while preventing damage to the central nervous and respiratory systems in the uterus by keeping the amniotic fluid interleukin-6 below the cutoff value.