Obut Mehmet, Akay Arife, Müjde Ibanoglu Can, Çelik Özge Yucel, Öncü Asya Kalayci, Acar Zuat, Seker Erdal, Saglam Erkan, Iskender Cantekin
Department of Perinatology, Etlik Zübeyde Hanim Women's Health Training and Research Hospital, Ankara, Turkey.
Department of Gynecology and Obstetrics, Etlik Zübeyde Hanim Women's Health Training and Research Hospital, Ankara, Turkey.
J Med Ultrasound. 2022 Nov 9;31(2):119-126. doi: 10.4103/jmu.jmu_225_21. eCollection 2023 Apr-Jun.
The risks added by extended jugular lymphatic sacs (EJLS) to increased nuchal translucency (NT) including genetic and structural abnormalities and pregnancy outcomes have not been previously investigated, which this study aims to investigate.
The data of 155 singleton pregnancies with increased fetal NT (≥95 percentile) of these 20 with fetal EJLS were evaluated retrospectively. Patients were stratified according to NT thickness such that ≥95 percentile - 3.5 mm, 3.6-4.4 mm, 4.5-5.4 mm, 5.5-6.4 mm, ≥6.5 mm, and grouped according to the presence of EJLS. Pregnancy outcomes, genetic and structural abnormalities were assessed by comparing EJLS with non-EJSL cases (n-EJLS).
Associated with NT, the incidence of the presence of EJLS increased with NT, from 4.5% at the ≥95 percentile - 3.5 mm to 30.8% when NT ≥5.5 mm. In the n-EJLS group, the proportion of fetuses with structural and genetic abnormalities increased as the measurement of NT increased. This correlation was not observed in the EJLS group. Compared to n-EJLS, cases with EJLS had a higher rate of fetal structural (38.5% vs. 75%, = 0.003) and genetic (18.5% vs. 45%, = 0.005) anomalies and a lower term live birth rate (59.3% vs. 15%, < 0.001).
The increasing rate of EJLS was seen as NT increased. Compared to n-EJLS, the EJLS cases had a higher rate poor pregnancy outcomes and fetal genetic and structural abnormalities.
颈静脉淋巴囊扩张（EJLS）对颈项透明层（NT）增厚所增加的风险，包括遗传和结构异常以及妊娠结局，此前尚未进行过研究，本研究旨在对此进行调查。
回顾性评估了这20例伴有胎儿EJLS的155例单胎妊娠且胎儿NT增厚（≥第95百分位数）的数据。根据NT厚度将患者分层为≥第95百分位数 - 3.5mm、3.6 - 4.4mm、4.5 - 5.4mm、5.5 - 6.4mm、≥6.5mm，并根据是否存在EJLS进行分组。通过比较EJLS与非EJLS病例（n - EJLS）来评估妊娠结局、遗传和结构异常情况。
与NT相关，EJLS的发生率随NT增加而升高，从≥第95百分位数 - 3.5mm时的4.5%增至NT≥5.5mm时的30.8%。在n - EJLS组中，随着NT测量值增加，具有结构和遗传异常的胎儿比例增加。在EJLS组中未观察到这种相关性。与n - EJLS相比，EJLS病例的胎儿结构异常（38.5%对75%，P = 0.003）和遗传异常（18.5%对45%，P = 0.005）发生率更高，足月活产率更低（59.3%对15%，P < 0.001）。
随着NT增加，EJLS的发生率升高。与n - EJLS相比，EJLS病例的妊娠结局不良以及胎儿遗传和结构异常的发生率更高。
