SILVIO MARTINELLI

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Instituto Central, Hospital das Clínicas, Faculdade de Medicina - Médico
LIM/57 - Laboratório de Fisiologia Obstétrica, Hospital das Clínicas, Faculdade de Medicina

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  • article 0 Citação(ões) na Scopus
    The role of three-dimensional ultrasound in pregnancies submitted to cerclage
    (2018) BORGHI, Thais da Fonseca; CARVALHO, Mario Henrique Burlacchini de; AMORIM FILHO, Antonio Gomes de; MARTINELLI, Silvio; ZUGAIB, Marcelo; FRANCISCO, Rossana Pulcineli Vieira
    OBJECTIVE: Cervical cerclage is the standard treatment for cervical incompetence (CI); however, there is still a high risk of preterm birth for women who undergo this treatment. The aim of this study was to longitudinally evaluate findings on two-dimensional transvaginal ultrasonography (2DTVUS) and three-dimensional transvaginal ultrasonography (3DTVUS) that could be related to gestational age at birth. METHODS: A total of 68 pregnant women who were treated with cerclage were evaluated by 2DTVUS and 3DTVUS in the second and third trimesters of pregnancy. Log-rank tests and Cox regression analyses were used to identify significant findings related to gestational age at delivery. RESULTS: A cervical length lower than 28.1 mm (p=0.0083), a proximal cervical length lower than 10 mm (p=0.0151), a cervical volume lower than 18.17 cm(3) (p=0.0152), a vascularization index (VI) under 2.153 (p=0.0044), and a vascularization-flow index (VFI) under 0.961 (p=0.0059) in the second trimester were all related to earlier delivery. In the third trimester, a cervical length lower than 20.4 mm (p=0.0009), a VI over 0.54 (p=0.0327) and a VFI over 2.275 (p=0.0479) were all related to earlier delivery. Cervical funnelling in the second and third trimesters and proximal cervical length in the third trimester were not related to gestational age at birth. The COX regression analyses showed that cervical volume in the second trimester; FI and VFI in the third trimester were significantly associated with gestational age at birth. CONCLUSION: In women treated with history-indicated cerclage or ultrasound-indicated cerclage, 2nd trimester cervical volume and 3rd trimester FI and VFI are independent significant sonographic findings associated with time to delivery.