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Sonographically monitored amniocentesis to decrease intraoperative complications.

R Romero, P Jeanty, E A Reece

    Obstetrics and Gynecology
    |March 1, 1985
    PubMed
    Summary
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    Sonographically monitored amniocentesis significantly reduced complications like bloody and dry taps during genetic testing in the second trimester. This technique improved procedural efficiency by minimizing needle insertions.

    Area of Science:

    • Obstetrics and Gynecology
    • Medical Imaging
    • Prenatal Diagnostics

    Background:

    • Amniocentesis is a common prenatal diagnostic procedure.
    • Intraoperative complications such as dry and bloody taps can occur.
    • Minimizing these complications is crucial for patient safety and procedural success.

    Purpose of the Study:

    • To compare the rates of intraoperative complications between two amniocentesis techniques.
    • To evaluate the efficacy of sonographically monitored amniocentesis versus sonographically guided amniocentesis.
    • To determine if continuous ultrasound visualization reduces procedural difficulties.

    Main Methods:

    • A comparative study involving 1300 patients undergoing second-trimester amniocentesis for genetic indications.

    Related Experiment Videos

  • Two techniques were compared: sonographically guided (site selection, transducer removal, amniocentesis) and sonographically monitored (continuous needle visualization).
  • Data on dry taps, bloody taps, and multiple needle insertions were collected and analyzed.

    • Main Results:

    • The sonographically monitored technique showed a statistically significant decrease in the incidence of bloody and dry taps during the first needle insertion (relative risk = 38%, P < .0001).
    • A significant reduction was also observed in the number of patients requiring multiple needle insertions with the sonographically monitored technique (relative risk = 42%, P < .0001).
    • These improvements were observed in 688 procedures using the monitored technique compared to 612 using the guided technique.

    Conclusions:

    • Sonographically monitored amniocentesis is superior to the sonographically guided technique in reducing intraoperative complications.
    • Continuous ultrasound visualization during amniocentesis enhances procedural safety and efficiency.
    • This technique offers a significant benefit for patients undergoing second-trimester genetic amniocentesis.