Determination of the minimum local anaesthetic dose (MLAD) of ropivacaine in real-time ultrasound guided spinal anesthesia for cesarean section

Status

Recruiting

Phases

Early Phase 1

Study type

Interventional

Source

ChiCTR

Registry ID

ChiCTR2100053372

Enrollment

Unknown

Registered

2021-11-20

Start date

2021-11-16

Completion date

Unknown

Last updated

2022-09-26

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

patients undergoing cesarean section

Interventions

Control group:Blind puncture by touching anatomical landmarks

Experimental group:real-time ultrasound-guided puncture

Eligibility

Sex/Gender

Female

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: 1. Aged >= 18 years; 2. ASA I-III grade; 3. Patients diagnosed with cesarean section; 4. Voluntarily and signed the informed consent.

Exclusion criteria

Exclusion criteria: 1. Intraspinal anesthesia is contraindicated; 2. After spinal deformity or spinal surgery; 3. Infection at the puncture site; 4. Local anesthetic allergy; 5. Coagulation disorders.

Design outcomes

Primary

Measure	Time frame
Time for sensory block to reach T6 level;the time sensory blockade above T6 level and the highest level;Onset time of motor block;Duration of motor retardation;Visual Analogue Scale score of surgery process;the using time of operation;Postoperatie resting and motion Visual Analogue Scale scores;Clinical data;Postoperative complications;Complications of intraspinal puncture;The time first out of bed;Patient satisfaction;doses;Puncture use time;Hospital stay;Neonatal Apgar score;	—

Measure

Time frame

Time for sensory block to reach T6 level;the time sensory blockade above T6 level and the highest level;Onset time of motor block;Duration of motor retardation;Visual Analogue Scale score of surgery process;the using time of operation;Postoperatie resting and motion Visual Analogue Scale scores;Clinical data;Postoperative complications;Complications of intraspinal puncture;The time first out of bed;Patient satisfaction;doses;Puncture use time;Hospital stay;Neonatal Apgar score;

—

Countries

China

Contacts

Public ContactZheng Xiaochun

Department of Anesthesiology, Fujian Provincial Hospital

zhengxiaochun7766@163.com+86 13705058351

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026