Postoperative pain
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Essential Criteria: Age >= 18 years; Singleton term pregnancy ( >= 37 weeks gestation) ; ASA Physical Status Class I–II with stable health condition. Surgical Conditions: Planned scheduled cesarean delivery under spinal or combined spinal-epidural anesthesia; Absence of contraindications to neuraxial anesthesia (e.g., coagulation disorders, infection at puncture site) ; Voluntary Participation: Signed written informed consent form .
Exclusion criteria
Exclusion criteria: Health-Related Exclusions: Severe hepatic/renal insufficiency or metabolic disorders; Documented allergy to ropivacaine or other local anesthetics; Chronic pain syndromes or long-term opioid use (>3 months). Surgery-Related Exclusions: History of >=3 cesarean deliveries or complex obstetric conditions (e.g., placenta accreta spectrum, placenta previa); Requirement for concurrent procedures (e.g., hysterectomy) that may confound pain assessment. Compliance Exclusions: Severe psychiatric disorders, communication barriers (e.g., aphasia), or inability to complete follow-up; Refusal to use patient-controlled intravenous analgesia (PCIA) or multimodal analgesia regimen. Key Terminology Validation: Placenta accreta spectrum: Internationally standardized term for abnormal placental invasion [FIGO 2018] PCIA (Patient-Controlled Intravenous Analgesia): Preferred over "postoperative infusion pump" in academic contexts [ASA Guidelines 2023] Chronic pain syndromes: Includes fibromyalgia, neuropathic pain, etc. [IASP Classification] Long-term opioid use: Defined as daily opioids for >3 months [CDC Guideline 2022
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Visual Analog Scale (VAS); | — |
Secondary
| Measure | Time frame |
|---|---|
| Postoperative analgesic drug dosage;Postoperative adverse reaction incidence: nausea, vomiting, skin itching, allergic reactions;first ambulation time; | — |
Countries
China
Contacts
Neijiang Maternal and Child Health Hospital