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RecruitingNCT04456985Updated Jul 7, 2020

Effect of Preoperative Intervention With Folic Acid and Vitamin B12 on Postoperative Neurobehavioral Changes in Children

An interventional study of Folic acid and vitamin B12 and brown sugar aqueous in Delirium, sponsored by Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University. Recruiting at 1 site in China. Open to participants aged 6 Months to 24 Months. Per ClinicalTrials.gov, last updated 2020-07-07.

Sponsored by Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University · Not applicable, Interventional, and Prevention

From the registry’s dates

  • Primary completion was expected by Jun 2025, 1 year 3 months ago, but the record still lists the study as recruiting.
  • Started Jun 2020; still recruiting 6 years 4 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
360
Allocation
Randomized
Ages
6 Months to 24 Months
Sex
All
01

Study summary

Comparison of preoperative folic acid and VitB12 intervention on postoperative delirium and long-term neurobehavioral changes in children under general anesthesia

Read the detailed description

Folic acid, as a one-carbon unit transferase coenzyme, participates in the synthesis of purine and thymine, and is an important element of the nervous system. Vitamin B12 participates in methyl conversion and folate metabolism in the body, promoting the conversion of 5-methyltetrahydrofolate to tetrahydrofolate. It has been reported that the lack of serum folic acid and B12 is associated with an increased risk of cognitive impairment. The explanation mechanism of the relationship between folic acid deficiency and cognitive dysfunction may be that folic acid deficiency leads to impaired central nervous system methylation, resulting in insufficient methyl synthesis of myelin sheaths, neurotransmitters, membrane phospholipids and deoxyribonucleic acid. Our previous studies showed that preoperative folic acid supplementation can alleviate myelin damage and cognitive impairment in young rats caused by sevoflurane anesthesia. Therefore, this study further explored the preoperative folic acid and coenzyme B12 supplementation for children's delirium and long-term neurobehavioral changes after general anesthesia.

02

Conditions studied

  • Delirium

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03

In context

Delirium

1,057 studies on the registry are indexed under Delirium; 238 are open to participants now.

This study's planned enrollment of 360 is above the median of 120 across 599 interventional studies indexed under Delirium.

Browse Delirium studies →

Lead sponsor

Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University is the lead sponsor of 160 studies on the registry; 70 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
6 Months to 24 Months
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  1. ASA grade is Ⅰ \~ Ⅱ;
  2. Children aged 6 months to 2 years old;
  3. It is planned to undergo head, neck and maxillofacial surgery under general anesthesia with anesthesia for less than 6 hours

Exclusion criteria

Exclusion Criteria:

  1. Children with a history of respiratory tract infection within 1 week;
  2. Children with congenital malformations such as congenital heart disease;
  3. Children with central nervous system diseases or mental disorders or mental disorders;
  4. Children with long-term use of sedative or analgesic drugs;
  5. Children with severe liver and kidney dysfunction;
  6. Received folic acid and VitB12 supplement treatment or taken related derivatives;
  7. Have taken drugs that affect absorption within the past month, such as sulfonamides, aspirin, etc .;
  8. Those who have participated in other relevant clinical research in the past 3 months;
  9. Children with stunting
05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
360 participants (estimated)

Study arms

  • Active comparator
    Intervention group

    Before the operation, the patient took 20ml of brown sugar aqueous solution containing folic acid and VitB12 for 3 days (folic acid concentration is 0.4mg / d for 2 year old children + 1.2μg / d of VitB12, dissolved in 20ml brown sugar water once a day). Postoperatively, PAED scores were performed at the time of awakening, extubation and every 10min within 30min after extubation. 10 points is defined as delirium during the recovery period). Long-term neurobehavioral changes were evaluated using the Gesell scale, followed up every six months until the age of three

    Dietary Supplement: Folic acid and vitamin B12

  • Placebo comparator
    Placebo group

    The patients in the placebo group took 20 ml of brown sugar aqueous solution with the same concentration as the intervention group 3 days before the operation. Postoperatively, PAED scores were performed at the time of recovery, extubation, and every 10 minutes within 30 minutes after extubation. The PAED scores of all children were measured by the same person. (The total score is 0-20, and the score ≥10 is defined as delirium during the recovery period). Long-term neurobehavioral changes were evaluated using the Gesell scale, followed up every six months until the age of three

    Dietary Supplement: brown sugar aqueous

Interventions

  • Dietary supplementFolic acid and vitamin B12

    Take folic acid and VitB12 for 3 consecutive days before surgery

  • Dietary supplementbrown sugar aqueous

    take 20 ml of brown sugar aqueous solution with the same concentration as the intervention group 3 days before the operation

06

What researchers measure

Primary outcomes

  1. PAED scale

    Observe whether the index will cause delirium during the recovery period.The evaluation range of the PAED scale is 0-20 points, If the score exceeds 10 points, Then it is considered delirium.

    Time frame: 10 minutes after surgery

  2. Gesell scale

    Through the gesell scale, 5 tests are carried out on children: gross motor ability, fine movement, physical ability, verbal ability, and human ability.The evaluation range of the Gesell scale is 0-100 points. If the score is higher, it means good. If the score is low, it means that the result is not good. If the result is not good, it may be caused by anesthesia, so we conducted this evaluation.

    Time frame: 2 day after surgery

Secondary outcomes

  1. Heart Rate

    Observe heart rate through a monitor

    Time frame: During the induction period of anesthesia, intubation, and the operation period;immediately after entering the resuscitation room (T1), 5 minutes before extubation (T2), immediately after extubation (T3), and 2 minutes after extubation (T4);

  2. Mean Blood Pressure

    Observe and calculated mean blood pressure through a monitor

    Time frame: During the induction period of anesthesia, intubation, and the operation period;immediately after entering the resuscitation room (T1), 5 minutes before extubation (T2), immediately after extubation (T3), and 2 minutes after extubation (T4);

  3. Extubation time

    Extubation time

    Time frame: immediately after surgery

  4. Ramsay sedation score

    Ramsay sedation score after recovery, extubation and every 10min within 30min after extubation,Ramsay sedation score is 1-6 points. If the score is 2-4 points,That result is satisfactory, 5-6 points are excessive sedation.

    Time frame: 10 minutes after extubation

  5. Postoperative pain CHEOPs scores

    The postoperative pain CHEOPs scores were taken at the time of extubation and every 10 minutes within 30 minutes after extubation (the total score was less than 6 points, there was no pain, and ≥10 points for corresponding analgesia treatment). The total score is 46 points, if the total score is less than 6 points, it is judged as no pain

    Time frame: 20 minutes after extubation

  6. Narcotic drugs

    The use of narcotic drugs (eg pentazocine, propofol)

    Time frame: During the surgery

  7. Other adverse events during the recovery period

    Other adverse events during the recovery period (eg nausea and vomiting, bronchospasm, respiratory depression, etc.)

    Time frame: Immediately after the surgery

  8. recovery time

    recovery time

    Time frame: immediately after recovery

07

Study locations

1 of 1 sites recruiting
  • China
    Shanghai, Shanghai 200001, China
    Recruiting
08

References and documents

Study documents

  • Protocol and statistical analysis plan · May 7, 2020
  • Informed consent form · May 7, 2020

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 7, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04456985
Lead sponsor
Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University
Responsible party
Zhang Lei (Deputy Chief Physician and Associate Researcher, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University) — Principal investigator
First posted
Jul 7, 2020
Start date
Jun 1, 2020
Primary completion
Jun 30, 2025 (estimated)
Completion
Jun 30, 2025 (estimated)
Last update
Jul 7, 2020

Study contacts

lei zhang, Doctor
Contact
weiymzhl@126.com
0086-18717822662
hong jiang, Doctor
Contact
jianghongjiuyuan@163.com
0086-021-23271699
hong jiang, Doctor
study director · Director of Anesthesiology

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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