A randomized controlled trial of intraoperative direct-vision subpectoral plane block vs conventional postoperative analgesia for pain relief after mastectomy

A randomized controlled trial of intraoperative direct-vision subpectoral plan

Status

Active, not recruiting

Phases

Phase 4

Study type

Interventional

Source

TCTR

Registry ID

TCTR20251022006

Enrollment

Registered

2025-10-22

Start date

2025-10-20

Completion date

Unknown

Last updated

2026-08-03

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

Conditions

breast cancer subpectoral plane block, mastectomy

Interventions

injected bupivacaine 20 ml to subpectoral plane block,standard surgical procedure

Experimental Procedure/Surgery,No Intervention No treatment

subpectoral plane block,Standard treatment

Eligibility

Sex/Gender

Female

Age

20 Years to 80 Years

Inclusion criteria

Inclusion criteria: 1.Females aged between 20 and 80 years old who diagnosed with breast cancer 2. scheduled for mastectomy between oct. 2025 to oct. 2027 in Lerdsin Hospital

Exclusion criteria

Exclusion criteria: 1.Allergies to bupivacaine , anesthetic drugs , opioids ,NSAIDs or acetaminophen 2.History of shoulder pain or limit range of motion prior to mastectomy 3.Severe medical condition 4.chronic conditions, who were on regular NSAIDs ,opioid and steroid

Design outcomes

Primary

Measure	Time frame
postoperative pain relief in mastectomy patients 24 hr postop till 6 months after surgery visual analogue scale	—

Secondary

Measure	Time frame
range of motion of postoperative shoulder movement day 3 after surgery till 6 months TAN scale,postoperative opioid usage 24 hr postoperation total doses (mg)	—

Countries

Thailand

Contacts

Public Contactnarupon sreesangsom

lerdsin hospital

isabpeem@gmail.com0987892216

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 10, 2026