Cervical vascularization indices in the prediction of imminent preterm labor

• Autores: Reyna-Villasmil, Eduardo, Mejía-Montilla, Jorly, Reyna-Villasmil, Nadia, Torres-Cepeda, Duly, Rondón-Tapia, Martha, Briceño-Pérez, Carlos
• Formato: artículo
• Fecha de Publicación: 2022
• Institución: Sociedad Peruana de Obstetricia y Ginecología
• Repositorio: Revista Peruana de Ginecología y Obstetricia
• Lenguaje: español; inglés
• OAI Identifier: oai:ginecologiayobstetricia.pe:article/2429
• Enlace del recurso: https://ginecologiayobstetricia.pe/index.php/RPGO/article/view/2429
• Nivel de acceso: acceso abierto
• Materia: Cérvix uterino; flujo sanguíneo; Índices de vascularización cervical; Trabajo de parto pretérmino; predicción; Cervix uteri; blood flow; Cervical vascularization indexes; Obstetric labor; premature; prediction

Objective: To establish the usefulness of cervical vascularization indices in theprediction of impending preterm labor. Design: Case-control study. Institution:"Dr. Urquinaona" Central Hospital, Maracaibo, Venezuela. Participants: Patientswith preterm delivery within 7 days (group A) and pregnant women with pretermdelivery beyond 7 days (group B). Methods: Pregnant women were evaluated usingtransvaginal ultrasound and followed until delivery. Main outcome measures:General characteristics, cervical vascularity indices (vascularity index, flow indexand vascularity / flow index), impending preterm delivery, and prognostic efficacy.Results: A total of 350 patients were included, 75 women presented imminentpreterm labor (group A) and 251 patients were considered as controls (group B).Patients in group A had significantly lower values of vascularization index and flowindex compared to group B (p = 0.0122 and p < 0.0001, respectively). Patients ingroup B had significantly higher values of vascularization / flow index compared topatients in group A (p = 0.0103). The three indices and the combination of these didnot show the ability to discriminate imminent preterm labor. Conclusions: Patientswith imminent preterm labor showed significant differences in the vascularizationindices compared to patients presenting preterm labor beyond 7 days of ultrasoundevaluation. However, they are not useful in predicting impending preterm labor.