Epidural hydroxyethyl starch ameliorating postdural puncture headache after accidental dural puncture

Area of Science:

• Obstetrics
• Anesthesiology
• Neurology

Background:

• Postdural puncture headache (PDPH) remains a common complication after accidental dural puncture (ADP) during obstetric epidural procedures.
• Effective preventative strategies for PDPH are lacking.

Purpose of the Study:

• To evaluate the efficacy and safety of epidural hydroxyethyl starch (HES) administration for preventing PDPH following ADP in obstetric patients.
• To assess the impact of a specific HES-based prophylactic strategy on PDPH incidence, severity, and duration.

Main Methods:

• Retrospective review of 105 patients experiencing ADP during obstetric epidural procedures (January 2019 - February 2021).
• Patients received either epidural analgesia alone, epidural HES with analgesia, or two doses of epidural HES (on and after analgesia).
• Outcomes included PDPH development, headache characteristics, adverse events, and postpartum hospital stay.

Main Results:

• The incidence of PDPH was significantly lower in the group receiving two doses of epidural HES (14.7%) compared to epidural analgesia alone (67.4%) and one dose of epidural HES (40.0%) (P <0.001).
• The HES-Epidural analgesia-HES strategy was strongly associated with a reduced risk of PDPH (OR = 0.030).
• No significant neurologic deficits were reported; a 10% rate of backache was associated with HES administration.

Conclusions:

• A prophylactic strategy involving re-siting an epidural catheter, continuous epidural analgesia, and two doses of epidural HES significantly decreases the risk of PDPH after obstetric ADP.
• This integrated approach demonstrates favorable efficacy and safety, though further investigation is warranted.