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Epidural Hydroxyethyl Starch for Post-Dural Puncture Headache in Parturients

29 oktober 2026 uppdaterad av: Dong-Xin Wang, Peking University First Hospital

Effect of Epidural Hydroxyethyl Starch Administration for Prevention of Post-Dural Puncture Headache in Parturients: A Multi-center Prospective Cohort Study

The incidence of accidental dural puncture (ADP) among parturients receiving neuraxial labor analgesia has been reported to range from 1% to 1.5%. Post-dural puncture headache (PDPH) is a headache caused by low cerebrospinal fluid pressure resulting from substantial cerebrospinal fluid leakage after dural and arachnoid puncture. Epidural filling with hydroxyethyl starch (HES) via an epidural catheter has been used to prevent PDPH in patients with ADP. This multicenter prospective cohort study aimed to evaluate the effect of epidural HES filling in preventing PDPH in parturients who experienced ADP during epidural labor analgesia or neuraxial anesthesia for cesarean delivery.

Studieöversikt

Detaljerad beskrivning

Accidental dural puncture (ADP) is a common complication of epidural puncture. Studies have reported that the incidence of ADP among parturients receiving neuraxial labor analgesia ranges from 1% to 1.5%. Post-dural puncture headache (PDPH) is a headache caused by low cerebrospinal fluid (CSF) pressure resulting from substantial CSF leakage after dural and arachnoid puncture. It typically occurs when the dura is accidentally punctured by a relatively large 16- or 18-gauge epidural needle during epidural labor analgesia or anesthesia, and occasionally after spinal anesthesia or combined spinal-epidural anesthesia performed with a 25-gauge fine needle. The literature reports that the incidence of PDPH among parturients undergoing neuraxial puncture is 0.4% to 1.5%, and that the incidence of PDPH after ADP is 50% to 80%, which is far higher than that in non-obstetric patients.

Current guideline-recommended treatments for PDPH include: (1) nonpharmacological conservative treatment, including oral fluids or intravenous hydration to maintain or increase CSF production, bed rest, and use of an abdominal binder. Although commonly used, their efficacy remains uncertain. (2) Pharmacological treatment: multimodal analgesia with acetaminophen and nonsteroidal anti-inflammatory drugs is recommended, and short-term opioid use may also be considered. Although these can relieve some symptoms, the potential transfer of drugs into breast milk and effects on the neonate should be considered at high doses. (3) Epidural blood patch (EBP) is the recommended standard treatment. It involves slow, fractionated injection of 15-20 mL of autologous blood into the epidural space, which increases epidural pressure, redistributes CSF, and forms a local blood clot that seals the dural tear, thereby reducing CSF leakage and gradually relieving the headache. However, not all patients with ADP develop PDPH; a strategy of routine prophylactic EBP would expose some patients to unnecessary potential risks.

Epidural filling with crystalloids or colloids is another alternative treatment option, which involves injecting normal saline, dextran, or hydroxyethyl starch (HES) through an epidural catheter to increase CSF pressure. Bel et al. reported a case in which epidural dextran filling successfully treated spontaneous intracranial hypotension in a pregnant woman. Aldrete et al. reported 13 patients with PDPH refractory to EBP whose headaches completely resolved after epidural dextran filling. Reynvoet et al. reported a patient with PDPH accompanied by hearing loss in whom two EBPs failed to relieve symptoms; at 8 weeks, epidural dextran filling was performed, and the symptoms completely resolved. Case reports from China and other countries have also described the preventive and therapeutic effects of epidural HES filling for the prevention and treatment of PDPH, with no adverse events reported during long-term follow-up.

This multicenter prospective cohort study aimed to evaluate the effect of epidural HES filling in preventing PDPH in parturients who experienced ADP during epidural labor analgesia or neuraxial anesthesia for cesarean delivery.

Studietyp

Observationell

Inskrivning (Beräknad)

410

Kontakter och platser

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Studiekontakt

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Studieorter

    • Beijing Municipality
      • Beijing, Beijing Municipality, Kina, 100034
        • Peking University First Hospital
        • Kontakt:
      • Beijing, Beijing Municipality, Kina, 100080
        • Beijing Haidian Maternal and Child Health Hospital
        • Kontakt:
    • Ningxia
      • Yinchuan, Ningxia, Kina, 750001
        • Ningxia Maternal and Child Health Hospital
        • Kontakt:
    • Shanxi

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

18 år och äldre (Vuxen, Äldre vuxen)

Tar emot friska volontärer

Nej

Kön som är behöriga för studier

Kvinna

Testmetod

Icke-sannolikhetsprov

Studera befolkning

The study population comprised parturients aged ≥18 years who experienced accidental dural puncture (ADP) during epidural labor analgesia or neuraxial anesthesia for cesarean delivery at the participating centers during the enrollment period.

Beskrivning

Inclusion Criteria:

  1. Age ≥18 years.
  2. Have experienced accidental dural puncture (ADP) during epidural labor analgesia or neuraxial anesthesia for cesarean delivery.

Exclusion Criteria:

  1. Age <18 years.
  2. ASA physical status ≥IV.
  3. Cesarean delivery under general anesthesia.
  4. Preoperative inability to communicate due to intellectual or language impairment.
  5. Pre-existing cerebrovascular disease, migraine, or chronic headache.
  6. Long-term use of oral analgesics.
  7. Preoperative coagulation dysfunction.
  8. Platelet count <80×10⁹/L.
  9. Refusal to participate.

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Observationsmodeller: COHORT
  • Tidsperspektiv: PROSPECTIVE

Kohorter och interventioner

Grupp / Kohort
Intervention / Behandling
Epidural hydroxyethyl starch group

For parturients with accidental dural puncture during labor epidural analgesia, after successful reinsertion of the epidural catheter at a different interspace, 15 mL of hydroxyethyl starch (HES) will be administered into the epidural space at two time points: the first at 30 minutes after the initial epidural dose administered through the reinserted catheter, and the second before catheter removal 24 hours after delivery.

For parturients with accidental dural puncture during cesarean delivery, 15 mL of HES will be administered into the epidural space at two time points: after delivery of the fetus and before catheter removal at the end of the 48-hour analgesia period.

For parturients with accidental dural puncture during labor epidural analgesia, after successful reinsertion of the epidural catheter at a different interspace, 15 mL of hydroxyethyl starch (HES) will be administered into the epidural space at two time points: the first at 30 minutes after the initial epidural dose administered through the reinserted catheter, and the second before catheter removal 24 hours after delivery.

For parturients with accidental dural puncture during cesarean delivery, 15 mL of HES will be administered into the epidural space at two time points: after delivery of the fetus and before catheter removal at the end of the 48-hour analgesia period.

Andra namn:
  • Epidural filling with hydroxyethyl starch
Non epidural hydroxyethyl starch group

For parturients with accidental dural puncture during labor epidural analgesia, after successful reinsertion of the epidural catheter at a different interspace, no HES will be administered into the epidural space in the control group. The corresponding time points in the intervention group are 30 minutes after the initial epidural dose administered through the reinserted catheter and before catheter removal 24 hours after delivery.

For parturients with accidental dural puncture during cesarean delivery, no HES will be administered into the epidural space in the control group. The corresponding time points in the intervention group are after delivery of the fetus and before catheter removal at the end of the 48-hour analgesia period.

For parturients with accidental dural puncture during labor epidural analgesia, after successful reinsertion of the epidural catheter at a different interspace, no HES will be administered into the epidural space in the control group. The corresponding time points in the intervention group are 30 minutes after the initial epidural dose administered through the reinserted catheter and before catheter removal 24 hours after delivery.

For parturients with accidental dural puncture during cesarean delivery, no HES will be administered into the epidural space in the control group. The corresponding time points in the intervention group are after delivery of the fetus and before catheter removal at the end of the 48-hour analgesia period.

Andra namn:
  • No epidural filling with hydroxyethyl starch

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Incidence of post-dural puncture headache (PDPH) within 7 days.
Tidsram: Up to 7 days after accidental dural puncture.

According to the International Classification of Headache Disorders, 3rd edition (ICHD-3) diagnostic criteria for post-dural puncture headache (PDPH), PDPH is defined as: a history of dural puncture; headache occurring within 5 days after dural puncture; headache consistent with low cerebrospinal fluid pressure headache; and not better accounted for by another ICHD-3 diagnosis.

Up to 7 days after accidental dural puncture.

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Duration of post-dural puncture headache (PDPH)
Tidsram: Up to 2 weeks after accidental dural puncture.

Duration of PDPH is defined as the time from the onset of PDPH to complete resolution of headache, recorded in days. Patients without resolution by the end of follow-up will be censored at the last follow-up visit.

Up to 2 weeks after accidental dural puncture.
Severity of post-dural puncture headache (PDPH)
Tidsram: Up to 2 weeks after accidental dural puncture.

PDPH severity was graded on a 0-10 numeric rating scale (NRS) as mild (1-3), moderate (4-6), or severe (7-10).

Up to 2 weeks after accidental dural puncture.

Samarbetspartners och utredare

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Utredare

  • Huvudutredare: Dong-Xin Wang, MD, PhD, Peking University First Hospital

Publikationer och användbara länkar

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Allmänna publikationer

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart (Beräknad)

1 november 2026

Primärt slutförande (Beräknad)

1 december 2029

Avslutad studie (Beräknad)

1 juni 2030

Studieregistreringsdatum

Först inskickad

29 oktober 2026

Först inskickad som uppfyllde QC-kriterierna

29 oktober 2026

Första postat (Faktisk)

4 november 2026

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

4 november 2026

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

29 oktober 2026

Senast verifierad

1 oktober 2026

Mer information

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