Murat MUHCU, Özkan ÖZDAMAR, İSMET GÜN, Okan ÖZDEN, Ercüment MÜNGEN, Vedat ATAY

Fetal Cinsiyetin Ultrasonografı?k Fetal Biyometrik Parametreler Üzerine Etkisi

Amaç: Fetal iyilik halinin değerlendirilmesinde en önemli parametrelerden biri fetal ağırlıktır. Fetal ağırlığın, maternal ağırlık, boy, sigara kullanımı, parite ve etnisite gibi özelliklerin yanında fetal cin-siyetten de etkilendiği bilinmektedir. Bu çalışmada amacımız düşük riskli tekil gebeliklerde, fetus cinsi-yetinin gebeliğin değişik haftalarında ölçülen BPD, HC, FL, AC ve EFW ultrason ölçümleri üzerine etkili olup olmadığını araştırmaktır.Metod: Gebeliğin 15-22, 23-26, 27-30, 31-34, 35-38 ve 39-40'ncı gebelik haftalarında fetal ultraso-nografik ölçümler yapıldı ve EFW ölçüldü.İki cinsi-yet arasında bu haftalarda istatistiksel farklılık olup olmadığı incelendi. İstatistiksel analizler chi-square testi, student-t test ve Mann Whitney U testi kullanı-larak yapıldı.Bulgular: Gerçek doğum tartısı açısından erkek ye-nidoğanlar istatistiksel olarak anlamlı düzeyde daha ağır bulundu. Ultrasonografik ölçümlerde sadece 35-40'ıncı gebelik haftalarında HC değeri erkek fe-tuslarda anlamlı olarak daha büyük bulunmuştur. Erkek fetuslarda doğum ağırlığı ile AC ve EFW ara-sında iyi-çok iyi korelasyon vardı.Karar: Çalışmamızda 35-40'ncı gebelik haftaların-da HC'nin erkek fetuslarda daha büyük ölçülmesi dışında, fetal cinsiyetin antenatal ultrasonografik ölçüm parametreleri üzerine herhangi bir etkisinin olmadığı görüldü. Ayrıca fetal ultrasonografik para-metrelerin gerçek doğum kilosu ile anlamlı düzeyde korele olduğu; EFW ve gerçek doğum kilosu arasın-da ise cinsiyet ayrımı olmadan iyi korelasyon oldu-ğu görüldü.

The Impact of the Fetal Gender on Ultrasonographic Fetal Biometric Parameters

Objective: One of the most important parameters to assess the fetal well-being status is fetal weight. It has been known that fetal weight is effected by many characteristics such as maternal weight, sta-ture, smoking habit, parity and ethnicity in addition to fetal gender. In the present study our aim was to assess whether fetal gender had any impact on ultrasonographic BPD, HC, AC, FL and EFW mea-surements in low-risk singleton pregnancies. Material and Methods: Fetal ultrasonographic me-asurements were made on the 15-22, 23-26, 27-30, 31-34, 35-38 and 39-40th weeks of gestation sepe-rately and EFWs were calculated. It was evaluated whether any significant difference existed between the two genders on these gestational weeks. Sta-tistical analyses were made using chi-square, stu-dent's t and Mann-Whitney U tests where approp-riate.Results: In terms of actual birth weight, male new-borns were significantly heavier. Of the sonograp-hic measurements, only HC on 39-40th gestational weeks were significantly greater in male fetuses. In male fetuses there was a good-very good correla-tion between actual birth weight and AC and EFW. Conclusions: In our study, we determined that fe-tal gender does not have any impact on antenatal sonographic measurements except for HC was me-asured greater in male fetuses on the 39-40th ges-tational weeks. Moreover, it was observed that fetal sonographic parameters were significantly correla-ted with the actual birth weights and that there was a good correlation between EFW and actual birth weight irrespective of the fetal gender.

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