Effecs of Pectoral major plane block in breast cancer patients treated with partial mastectomy and sentinel node biopsy: comparison of postoperative pain with or without the block, Randomized Controlled Trial

Effecs of Pectoral major plane block in breast cancer patients treated with partial mastectomy and sentinel node biopsy: comparison of postoperative pain with or without the block, Randomized Controlled Trial - Effecs of Pectoral major plane block in breast cancer patients treated with partial mastectomy and sentinel node biopsy: comparison of postoperative pain with or without the block, Randomized Controlled Trial

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000016521

Enrollment

120

Registered

2015-02-12

Start date

2015-04-01

Completion date

Unknown

Last updated

2026-06-29

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

Conditions

Breast cancer

Interventions

US guided pectoral nerves block (pecs 1 block and pecs 2 block) and PMPB (pectoral major muscle plane block ) preoperatively under general anesthesia. US guided pectoral nerves block (pecs 1 block an

Eligibility

Sex/Gender

Female

Inclusion criteria

Inclusion criteria: 1. America Society of Anesthesiologist physical status (ASA-PS) 1-2 2.Brest cancer patients scheduled to partial mastectomy with sentinel lymphadenectomy under general anesthesia 3. Age>=20 4. Written informed consent

Exclusion criteria

Exclusion criteria: 1. Declinin to give informed consent 2. Body mass index (BMI) >=35/kg/m2 3. History of allergy to the medications used in the study 4. Contraindication to regional anesthesia (including coagulopathy and local infection) 5. Prior breast surgery except for diagnostic biopsies 6. History of treatment for a chronic pain condition and/or psychiatric disorder 7. Considered ineligible

Design outcomes

Primary

Measure	Time frame
1) NRS 2) SF-MPQ2	—

Secondary

Measure	Time frame
1) Consumption of intraoperative analgesic agent 2) Consumption of postoperative analgesic agent 3) Severity of PONV using a Likert scale (none, mild, moderate, and severe)	—

Countries

Japan

Contacts

Public ContactSayaka Masuda

Tokyo Metropolitan Ohtsuka Hospital Department of Anesthesiology

mistysky_aaa@yahoo.co.jp03+3941+3211

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026