What do systematic reviews say?

Postoperative use of LNG‐IUD vs postoperative GnRH‐a

The review found no eligible studies for this question.

• Levonorgestrel‐releasing intrauterine device (LNG‐IUD) for symptomatic endometriosis following surgery 2021 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Postoperative use of LNG‐IUD vs postoperative GnRH‐a

• Levonorgestrel‐releasing intrauterine device (LNG‐IUD) for symptomatic endometriosis following surgery 2021 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 40 participants
  Very low

Postoperative use of LNG‐IUD vs expectant management

The review found no eligible studies for this question.

• Levonorgestrel‐releasing intrauterine device (LNG‐IUD) for symptomatic endometriosis following surgery 2021 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Postoperative use of LNG‐IUD vs expectant management

• Levonorgestrel‐releasing intrauterine device (LNG‐IUD) for symptomatic endometriosis following surgery 2021 · Cochrane Headline outcomes only
  no estimate extracted
  95 participants
  Very low

Postoperative use of LNG‐IUD vs expectant management

The review found no eligible studies for this question.

• Levonorgestrel‐releasing intrauterine device (LNG‐IUD) for symptomatic endometriosis following surgery 2021 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Postoperative use of LNG‐IUD vs expectant management

• Levonorgestrel‐releasing intrauterine device (LNG‐IUD) for symptomatic endometriosis following surgery 2021 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 55 participants
  Very low

Postoperative use of LNG‐IUD vs expectant management

• Levonorgestrel‐releasing intrauterine device (LNG‐IUD) for symptomatic endometriosis following surgery 2021 · Cochrane Headline outcomes only
  no estimate extracted
  2 studies · 95 participants
  Very low

Postoperative use of LNG‐IUD vs expectant management

• Levonorgestrel‐releasing intrauterine device (LNG‐IUD) for symptomatic endometriosis following surgery 2021 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 55 participants
  Very low

Postoperative use of LNG‐IUD vs postoperative GnRH‐a

The review found no eligible studies for this question.

• Levonorgestrel‐releasing intrauterine device (LNG‐IUD) for symptomatic endometriosis following surgery 2021 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Postoperative use of LNG‐IUD vs postoperative GnRH‐a

The review found no eligible studies for this question.

• Levonorgestrel‐releasing intrauterine device (LNG‐IUD) for symptomatic endometriosis following surgery 2021 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

The LNG‐IUS with endometrial surveillance vs endometrial surveillance alone

The LNG‐IUS with endometrial surveillance probably leads to lower endometrial polyps compared with endometrial surveillance alone (moderate certainty).

• Levonorgestrel intrauterine system for endometrial protection in women with breast cancer on adjuvant tamoxifen 2020 · Cochrane Headline outcomes only
  OR 0.22 [0.13, 0.39]
  4 studies · 417 participants
  Moderate

The LNG‐IUS with endometrial surveillance vs endometrial surveillance alone

The LNG‐IUS with endometrial surveillance probably leads to lower endometrial hyperplasia compared with endometrial surveillance alone (moderate certainty).

• Levonorgestrel intrauterine system for endometrial protection in women with breast cancer on adjuvant tamoxifen 2020 · Cochrane Headline outcomes only
  OR 0.13 [0.03, 0.67]
  4 studies · 417 participants
  Moderate

The LNG‐IUS with endometrial surveillance vs endometrial surveillance alone

• Levonorgestrel intrauterine system for endometrial protection in women with breast cancer on adjuvant tamoxifen 2020 · Cochrane Headline outcomes only
  no estimate extracted
  2 studies · 154 participants
  Moderate

The LNG‐IUS with endometrial surveillance vs endometrial surveillance alone

The LNG‐IUS with endometrial surveillance showed no clear difference in fibroids compared with endometrial surveillance alone (moderate certainty).

• Levonorgestrel intrauterine system for endometrial protection in women with breast cancer on adjuvant tamoxifen 2020 · Cochrane Headline outcomes only
  OR 0.48 [0.16, 1.46]
  3 studies · 314 participants
  Moderate

The LNG‐IUS with endometrial surveillance vs endometrial surveillance alone

The LNG‐IUS with endometrial surveillance probably leads to higher abnormal vaginal bleeding or spotting compared with endometrial surveillance alone (moderate certainty).

• Levonorgestrel intrauterine system for endometrial protection in women with breast cancer on adjuvant tamoxifen 2020 · Cochrane Headline outcomes only
  OR 7.26 [3.37, 15.66]
  3 studies · 376 participants
  Moderate

The LNG‐IUS with endometrial surveillance vs endometrial surveillance alone

The LNG‐IUS with endometrial surveillance showed no clear difference in breast cancer recurrence compared with endometrial surveillance alone (moderate certainty).

• Levonorgestrel intrauterine system for endometrial protection in women with breast cancer on adjuvant tamoxifen 2020 · Cochrane Headline outcomes only
  OR 1.74 [0.64, 4.74]
  2 studies · 154 participants
  Moderate

The LNG‐IUS with endometrial surveillance vs endometrial surveillance alone

The LNG‐IUS with endometrial surveillance showed no clear difference in breast cancer‐related death compared with endometrial surveillance alone (moderate certainty).

• Levonorgestrel intrauterine system for endometrial protection in women with breast cancer on adjuvant tamoxifen 2020 · Cochrane Headline outcomes only
  OR 1.02 [0.36, 2.84]
  3 studies · 277 participants
  Moderate