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Analysis of risk factors for post-operative recurrence or progression of intravenous leiomyomatosis

  • 0Department of Obstetrics and Gynecology, National Clinical Research Center for Obstetric & Gynecologic Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Dongcheng-qu, Beijing, China.
International Journal of Gynecological Cancer : Official Journal of the International Gynecological Cancer Society +

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April 14, 2025

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April 14, 2025

View abstract on PubMed

Summary

This summary is machine-generated.

Recurrence of intravenous leiomyomatosis is linked to incomplete tumor resection and tumor size. Hysterectomy and bilateral oophorectomy appear to reduce recurrence risk compared to tumorectomy.

Area Of Science

  • Gynecologic Oncology
  • Surgical Pathology
  • Oncology

Background

  • Intravenous leiomyomatosis (IVL) is a rare benign smooth muscle tumor with a propensity for local recurrence and intraluminal vascular spread.
  • Understanding risk factors and optimal surgical management is crucial for improving patient outcomes.

Purpose Of The Study

  • To identify risk factors associated with post-operative recurrence or progression of intravenous leiomyomatosis.
  • To evaluate the impact of various surgical and adjuvant treatment strategies on patient prognosis.

Main Methods

  • Retrospective analysis of 114 patients with intravenous leiomyomatosis who underwent surgery between January 2011 and December 2020.
  • Kaplan-Meier survival analysis was employed to assess factors influencing recurrence and progression.
  • Primary endpoint: recurrence (complete resection) or progression (incomplete resection) with a minimum follow-up of 3 months.

Main Results

  • Twenty-nine patients (25.4%) experienced recurrence or progression, with a median time of 16 months.
  • Significant risk factors for recurrence/progression included incomplete tumor resection (p=0.019), involvement of iliac/genital veins (p=0.042), inferior vena cava involvement (p=0.025), and pelvic tumor size ≥15 cm (p=0.034).
  • Hysterectomy with bilateral oophorectomy showed no recurrence, while tumorectomy (uterus/ovaries preserved) had significantly higher recurrence risk (p=0.009).

Conclusions

  • Incomplete tumor resection, the extent of tumor involvement (especially large vessels), and pelvic tumor size are key predictors of post-operative recurrence and progression in intravenous leiomyomatosis.
  • Organ-sparing surgery (tumorectomy) is associated with a higher risk of recurrence compared to hysterectomy and bilateral oophorectomy.
  • For extensive disease, adjuvant treatments like aromatase inhibitors and two-stage surgery did not significantly impact recurrence in cases with complete resection.

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