ClinicalTrials.Veeva

Menu

RCT - Efficacy of Intravenous Vitamin C Versus Placebo on Estimated Blood Loss in Total Abdominal Hysterectomy (Vit C in TAH)

Q

Queen Savang Vadhana Memorial Hospital, Thailand

Status

Invitation-only

Conditions

Adenomyosis of Uterus
Myoma;Uterus

Treatments

Dietary Supplement: Vitamin C (Ascorbic Acid)

Study type

Interventional

Funder types

Other

Identifiers

NCT07335432
012/2567

Details and patient eligibility

About

Intervention Group: Received two 1 gm doses of Vitamin C intravenously (IV). first Dose: At midnight on the day of surgery. Second Dose: Immediately after the surgical incision. Control Group: Received two doses of a normal saline intravenously (IV) at the exact same times.

The primary outcome was to compare intraoperative blood loss between patients who received intravenous Vitamin C and those who did not, following an abdominal hysterectomy under general anesthesia.

Intraoperative estimated blood loss (EBL) was meticulously quantified by weighing surgical gauze and measuring suction canister volumes.

The secondary outcomes were to evaluate the potential benefits of Vitamin C administration, including:

  • Reduction in the decline of hematocrit levels after surgery.
  • Reduction of the length of hospital stay

Enrollment

40 estimated patients

Sex

Female

Ages

20+ years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • Female patients who underwent total abdominal hysterectomy

    • No bleeding tendency.
    • No history of anticoagulant or thrombolytic drug use
    • No contraindications to vitamin C supplementation

Exclusion criteria

  • Inability to communicate in the Thai language.

    • Underwent total abdominal hysterectomy due to gynecologic malignancy.
    • Required emergency total abdominal hysterectomy.
    • History of vitamin C supplementation within 2 weeks prior to surgery.
    • History of smoking.
    • Previous abdominal surgery, such as bowel surgery, cesarean section

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

Double Blind

40 participants in 2 patient groups

Experimental: Vitamin C
Experimental group
Description:
Intervention Group: Received two 1 gm doses of Vitamin C intravenously (IV). first Dose: At midnight on the day of surgery. Second Dose: Immediately after the surgical incision. Control Group: Received two doses of a normal saline intravenously (IV) at the exact same times.
Treatment:
Dietary Supplement: Vitamin C (Ascorbic Acid)
Placebo
Experimental group
Treatment:
Dietary Supplement: Vitamin C (Ascorbic Acid)

Trial contacts and locations

1

Loading...

Data sourced from clinicaltrials.gov

Clinical trials

Find clinical trialsTrials by location
© Copyright 2026 Veeva Systems