The B-Lynch suture for postpartum hemorrhage works by which mechanism?

• A Ligation of the uterine arteries at their origin
• B Occluding the internal iliac arteries bilaterally
• C Compressing the uterus in a vertical brace configuration to tamponade venous sinuses ✓
• D Creating a tourniquet around the lower uterine segment

Explanation

The B-Lynch (brace) suture, described in 1997, passes a suture in a vertical brace pattern over the uterine fundus and below the bladder flap to physically compress the uterus, tamponading open venous sinuses and promoting uterine contraction. It is a uterus-sparing surgical option for PPH. Uterine artery ligation (O'Leary suture) and internal iliac artery ligation are separate techniques; the B-Lynch does not involve arterial ligation.

Reference: Williams Obstetrics, 26th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

Written and medically reviewed by the StethoPrep medical team.