Uterine artery embolization (UAE): Transcatheter delivery of embolic agent to block blood flow to uterus
Commonly used to treat uterine fibroids, adenomyosis, or postpartum hemorrhage
Can be permanent (particles) or temporary (Gelfoam)
Uterine leiomyoma (fibroid): Benign neoplasm of smooth muscle (myometrium) and accompanying connective tissue
Adenomyosis: Ectopic endometrial tissue in myometrium
Can cause bleeding symptoms similar to fibroids
Postpartum hemorrhage (PPH): Excessive bleeding during/after childbirth; may be life-threatening
Characterized by
Blood loss > 500 mL during vaginal delivery
Blood loss > 1,000 mL during cesarean section
Hematocrit drop ≥ 10% between admission and birth
Causes of PPH
Uterine atony (most common)
Genital tract laceration
Retained/adherent placenta
Maternal coagulopathies
Primary PPH: Occurs in first 24 hours after delivery
Usually associated with uterine atony or laceration
Secondary (delayed) PPH: Continued bleeding > 24 hours after delivery
Usually associated with retained gestational products
Balloon occlusion of internal iliac arteries: Placement of balloon-tipped catheters in internal iliac arteries to be inflated for temporary tamponade
Prophylactic placement for prevention of intraoperative bleeding in obstetric/gynecologic surgeries
Can also be used to deliver Gelfoam intraoperatively if bleeding occurs
Commonly used in conjunction with planned cesarean section for abnormal placentation
Abnormal placentation: Spectrum of disease (accreta, increta, percreta) in which placenta abnormally invades into uterine wall and possibly extrauterine structures, increasing risk of intrapartum hemorrhage
Superior hypogastric nerve block (SHNB): Direct percutaneous delivery of anesthetic to superior hypogastric plexus to help with procedural pain control and reduce need for postoperative opioids
Loya MF et al: Uterine artery embolization for secondary postpartum hemorrhage. Tech Vasc Interv Radiol. 24(1):100728, 2021
Manyonda I et al: Uterine-artery embolization or myomectomy for uterine fibroids. N Engl J Med. 383(5):440-51, 2020
Park PJ et al: Efficacy of intraprocedural superior hypogastric nerve block in reduction of postuterine artery embolization narcotic analgesia use. Can Assoc Radiol J. 71(1):75-80, 2020
Binkert CA et al: Superior hypogastric nerve block to reduce pain after uterine artery embolization: advanced technique and comparison to epidural anesthesia. Cardiovasc Intervent Radiol. 38(5):1157-61, 2015
Dariushnia SR et al: Quality improvement guidelines for uterine artery embolization for symptomatic leiomyomata. J Vasc Interv Radiol. 25(11):1737-47, 2014
Gupta JK et al: Uterine artery embolization for symptomatic uterine fibroids. Cochrane Database Syst Rev. 12: CD005073, 2014
Mara M et al: Embolization of uterine fibroids from the point of view of the gynecologist: pros and cons. Int J Womens Health. 6:623-9, 2014
Spencer EB et al: Clinical and periprocedural pain management for uterine artery embolization. Semin Intervent Radiol. 30(4):354-63, 2013
Burke CT et al: ACR Appropriateness Criteria® on treatment of uterine leiomyomas. J Am Coll Radiol. 8(4):228-34, 2011
Fennessy FM et al: Quality-of-life assessment of fibroid treatment options and outcomes. Radiology. 259(3):785-92, 2011
Gayat E et al: Predictive factors of advanced interventional procedures in a multicentre severe postpartum haemorrhage study. Intensive Care Med. 37(11):1816-25, 2011
Gorny KR et al: Magnetic resonance-guided focused ultrasound of uterine leiomyomas: review of a 12-month outcome of 130 clinical patients. J Vasc Interv Radiol. 22(6):857-64, 2011
Kim MD et al: Uterine artery embolization for symptomatic adenomyosis: a new technical development of the 1-2-3 protocol and predictive factors of MR imaging affecting outcomes. J Vasc Interv Radiol. 22(4):497-502, 2011
Moss JG et al: Randomised comparison of uterine artery embolisation (UAE) with surgical treatment in patients with symptomatic uterine fibroids (REST trial): 5-year results. BJOG. 118(8):936-44, 2011
van der Kooij SM et al: Uterine artery embolization versus surgery in the treatment of symptomatic fibroids: a systematic review and metaanalysis. Am J Obstet Gynecol. 205(4):317, 2011
Yu SC et al: Comparison of clinical outcomes of tris-acryl microspheres versus polyvinyl alcohol microspheres for uterine artery embolization for leiomyomas: results of a randomized trial. J Vasc Interv Radiol. 22(9):1229-35, 2011
Gonsalves M et al: The role of interventional radiology in obstetric hemorrhage. Cardiovasc Intervent Radiol. 33(5):887-95, 2010
Hovsepian DM et al: Quality improvement guidelines for uterine artery embolization for symptomatic leiomyomata. J Vasc Interv Radiol. 20(7 Suppl):S193-9, 2009
Salazar GM et al: Transcatheter endovascular techniques for management of obstetrical and gynecologic emergencies. Tech Vasc Interv Radiol. 12(2):139-47, 2009
Kim HS et al: Pain levels within 24 hours after UFE: a comparison of morphine and fentanyl patient-controlled analgesia. Cardiovasc Intervent Radiol. 31(6):1100-7, 2008
Razavi MK et al: Angiographic classification of ovarian artery-to-uterine artery anastomoses: initial observations in uterine fibroid embolization. Radiology. 224(3):707-12, 2002
Related Anatomy
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References
Tables
Tables
KEY FACTS
Terminology
Procedure
Outcomes
TERMINOLOGY
Synonyms
Uterine fibroid embolization
Definitions
Uterine artery embolization (UAE): Transcatheter delivery of embolic agent to block blood flow to uterus
Commonly used to treat uterine fibroids, adenomyosis, or postpartum hemorrhage
Can be permanent (particles) or temporary (Gelfoam)
Uterine leiomyoma (fibroid): Benign neoplasm of smooth muscle (myometrium) and accompanying connective tissue
Adenomyosis: Ectopic endometrial tissue in myometrium
Can cause bleeding symptoms similar to fibroids
Postpartum hemorrhage (PPH): Excessive bleeding during/after childbirth; may be life-threatening
Characterized by
Blood loss > 500 mL during vaginal delivery
Blood loss > 1,000 mL during cesarean section
Hematocrit drop ≥ 10% between admission and birth
Causes of PPH
Uterine atony (most common)
Genital tract laceration
Retained/adherent placenta
Maternal coagulopathies
Primary PPH: Occurs in first 24 hours after delivery
Usually associated with uterine atony or laceration
Secondary (delayed) PPH: Continued bleeding > 24 hours after delivery
Usually associated with retained gestational products
Balloon occlusion of internal iliac arteries: Placement of balloon-tipped catheters in internal iliac arteries to be inflated for temporary tamponade
Prophylactic placement for prevention of intraoperative bleeding in obstetric/gynecologic surgeries
Can also be used to deliver Gelfoam intraoperatively if bleeding occurs
Commonly used in conjunction with planned cesarean section for abnormal placentation
Abnormal placentation: Spectrum of disease (accreta, increta, percreta) in which placenta abnormally invades into uterine wall and possibly extrauterine structures, increasing risk of intrapartum hemorrhage
Superior hypogastric nerve block (SHNB): Direct percutaneous delivery of anesthetic to superior hypogastric plexus to help with procedural pain control and reduce need for postoperative opioids
Loya MF et al: Uterine artery embolization for secondary postpartum hemorrhage. Tech Vasc Interv Radiol. 24(1):100728, 2021
Manyonda I et al: Uterine-artery embolization or myomectomy for uterine fibroids. N Engl J Med. 383(5):440-51, 2020
Park PJ et al: Efficacy of intraprocedural superior hypogastric nerve block in reduction of postuterine artery embolization narcotic analgesia use. Can Assoc Radiol J. 71(1):75-80, 2020
Binkert CA et al: Superior hypogastric nerve block to reduce pain after uterine artery embolization: advanced technique and comparison to epidural anesthesia. Cardiovasc Intervent Radiol. 38(5):1157-61, 2015
Dariushnia SR et al: Quality improvement guidelines for uterine artery embolization for symptomatic leiomyomata. J Vasc Interv Radiol. 25(11):1737-47, 2014
Gupta JK et al: Uterine artery embolization for symptomatic uterine fibroids. Cochrane Database Syst Rev. 12: CD005073, 2014
Mara M et al: Embolization of uterine fibroids from the point of view of the gynecologist: pros and cons. Int J Womens Health. 6:623-9, 2014
Spencer EB et al: Clinical and periprocedural pain management for uterine artery embolization. Semin Intervent Radiol. 30(4):354-63, 2013
Burke CT et al: ACR Appropriateness Criteria® on treatment of uterine leiomyomas. J Am Coll Radiol. 8(4):228-34, 2011
Fennessy FM et al: Quality-of-life assessment of fibroid treatment options and outcomes. Radiology. 259(3):785-92, 2011
Gayat E et al: Predictive factors of advanced interventional procedures in a multicentre severe postpartum haemorrhage study. Intensive Care Med. 37(11):1816-25, 2011
Gorny KR et al: Magnetic resonance-guided focused ultrasound of uterine leiomyomas: review of a 12-month outcome of 130 clinical patients. J Vasc Interv Radiol. 22(6):857-64, 2011
Kim MD et al: Uterine artery embolization for symptomatic adenomyosis: a new technical development of the 1-2-3 protocol and predictive factors of MR imaging affecting outcomes. J Vasc Interv Radiol. 22(4):497-502, 2011
Moss JG et al: Randomised comparison of uterine artery embolisation (UAE) with surgical treatment in patients with symptomatic uterine fibroids (REST trial): 5-year results. BJOG. 118(8):936-44, 2011
van der Kooij SM et al: Uterine artery embolization versus surgery in the treatment of symptomatic fibroids: a systematic review and metaanalysis. Am J Obstet Gynecol. 205(4):317, 2011
Yu SC et al: Comparison of clinical outcomes of tris-acryl microspheres versus polyvinyl alcohol microspheres for uterine artery embolization for leiomyomas: results of a randomized trial. J Vasc Interv Radiol. 22(9):1229-35, 2011
Gonsalves M et al: The role of interventional radiology in obstetric hemorrhage. Cardiovasc Intervent Radiol. 33(5):887-95, 2010
Hovsepian DM et al: Quality improvement guidelines for uterine artery embolization for symptomatic leiomyomata. J Vasc Interv Radiol. 20(7 Suppl):S193-9, 2009
Salazar GM et al: Transcatheter endovascular techniques for management of obstetrical and gynecologic emergencies. Tech Vasc Interv Radiol. 12(2):139-47, 2009
Kim HS et al: Pain levels within 24 hours after UFE: a comparison of morphine and fentanyl patient-controlled analgesia. Cardiovasc Intervent Radiol. 31(6):1100-7, 2008
Razavi MK et al: Angiographic classification of ovarian artery-to-uterine artery anastomoses: initial observations in uterine fibroid embolization. Radiology. 224(3):707-12, 2002
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