OBJECTIVE:

To determine the prevalence of conditions amenable to treatment by an intrauterine procedure in a Maternal-Fetal Medicine unit of a tertiary hospital in western Mexico over a nine-year period.

MATERIALS AND METHODS:

Cross-sectional and descriptive study, with review of obstetric ultrasound reports performed in the Maternal-Fetal Medicine Unit of the Civil Hospital of Guadalajara Dr. Juan I. Menchaca from 2013 to 2021, with selection of cases of patients diagnosed with any condition susceptible to intrauterine intervention.

RESULTS:

During the study period 103,721 obstetric ultrasounds were performed and recorded, of which 257 patients were included in the study published here with a diagnosis of a condition that could be treated in utero. The prevalence of conditions that could be treated in utero was 0.47% of all patients assessed. The mean age of the patients was 24.6 years; 162 (63%) were multigestational and 95 (37%) primigravid. Singleton pregnancies 193 (75%) and 64 (25%) multiple pregnancies. Mean weeks of gestation at diagnosis of involvement was 25.6.

CONCLUSIONS:

This trial estimated a prevalence of 0.47% of conditions that can be intervened in utero, leaving aside many others where studies have not demonstrated benefit of fetal surgery, nor do the benefits outweigh the risks, whether surgery is performed prenatally or postnatally.