Näytönastekatsaukset

Vaginal laser therapy (CO2) on stress urinary incontinence symptoms

Näytönastekatsaukset
31.3.2026
Pauliina Aukee and Aleksi Raudasoja

Level of evidence: B

Vaginal laser therapy provides little or no benefit on stress urinary incontinence symptoms.

Vaginal laser therapy may reduce stress urinary incontinence symptoms slightly in the short term (as well as reduction in 1-hour pad weight). However, two sham-controlled trials measured the effect in 6 months follow up and found no meaningful benefit. Serious adverse events were rare.

The evidence was limited by imprecision.

Evidence was limited to CO2 laser therapies, so the assessment may not apply to newer methods.

Table 1. Description of the included studies.
Reference Study type Population Intervention and comparison Outcomes Risk of bias
RCT=randomized controlled trial; SR=systematic review; MA=meta-analysis
«Aguiar LB, Politano CA, Costa-Paiva L, et al. Efficacy of Fractional CO(2) Laser, Promestriene, and Vaginal Lubricant in the Treatment of Urinary Symptoms in Postmenopausal Women: A Randomized Clinica»1RCTWomen over 50 years old and urinary symptoms or complaints of vaginal drynessFractional CO2 laser, promestriene, or vaginal lubricant. ICIQ-UI SF,
ICIQ-OAB
High
«Alexander JW, Karjalainen P, Ow LL, et al. CO(2) surgical laser for treatment of stress urinary incontinence in women: a randomized controlled trial. Am J Obstet Gynecol 2022;227(3):473.e1-473.e12 »2RCT18-80 years old women with stress urinary incontinenceFractional CO2 laser vs shamICIQ-UI SF,
ICQ-OAB, 1-hour pad weight
Moderate
«Lauterbach R, Aharoni S, Justman N, et al. The efficacy and safety of a single maintenance laser treatment for stress urinary incontinence: a double-blinded randomized controlled trial. Int Urogynecol»3RCT40-70 years old women with positive experience from previous CO2 laser therapyCO2 laser mainantance vs shamICIQ-UI, 1-hour pad weight, UDI-6, PISQ-12Low
«Seki AS, Bianchi-Ferraro AMHM, Fonseca ESM, et al. CO(2) Laser and radiofrequency compared to a sham control group in treatment of stress urinary incontinence (LARF study arm 3). A randomized controll»4RCTWomen with stress urinary incontinenceCO2 laser vs shamICIQ-UI SF, I-QOL, FSF-I, 1-hour pad weightModerate
Table 2. Additional comments for included studies.
Reference Comments
«Aguiar LB, Politano CA, Costa-Paiva L, et al. Efficacy of Fractional CO(2) Laser, Promestriene, and Vaginal Lubricant in the Treatment of Urinary Symptoms in Postmenopausal Women: A Randomized Clinica»1Fractional CO2 laser vs lubricant included. The study inclusion criteria were: age 50+, amenorrhoea for at least 1 year, with clinical complaints of vaginal dryness or urinary symptoms related to GSM, no hormonal treatment for at least prior last 6 months and any kind of medication for OAB.
Risk of bias: no blinding of participants/data collectors, 14/72 lost to follow up (included with LOCF in the analysis).
«Alexander JW, Karjalainen P, Ow LL, et al. CO(2) surgical laser for treatment of stress urinary incontinence in women: a randomized controlled trial. Am J Obstet Gynecol 2022;227(3):473.e1-473.e12 »2Inclusion criteria: symptomatic (urinary leakage on exertion) and objective SUI (a positive cough stress test (CST) with a comfortably full bladder followed by a uroflow, urodynamic stress incontinence, or positive 24-hour pad weight test)
Participants received the treatment 3 times with 4 week interwals.
Risk of bias: data collection/analysis not blinded, dropouts at 1 month 10/101 and at 3 months 4/101.
«Lauterbach R, Aharoni S, Justman N, et al. The efficacy and safety of a single maintenance laser treatment for stress urinary incontinence: a double-blinded randomized controlled trial. Int Urogynecol»3Inclusion criteria: a temporary signifcant improvement in symptoms following previous CO2 laser treatment.
One time laser treatment.
Risk of bias: Adequate randomization procedure, analysis blinding not reported, dropouts 3/134.
Unclear statistical analysis. Mean differences were probably converted to Odds ratios.
«Seki AS, Bianchi-Ferraro AMHM, Fonseca ESM, et al. CO(2) Laser and radiofrequency compared to a sham control group in treatment of stress urinary incontinence (LARF study arm 3). A randomized controll»4Inclusion criteria: Stress urinary incontinence diagnosis was confirmed by a stress test.
Risk of bias: Adequate randomization procedure. Analysis not blinded. Drop outs 25/139 (included in the ITT, not reported how).
Median ISIQ-SF at baseline: intervention 11.5, control 13.5.

Results

Table 3. Outcome 1: ICIQ-UI SF score [range 3-21] at 3 months.
Reference Number of studies and number of patients (I/C) Follow-up time Mean (sd) I Mean (sd) CMean difference (95% CI)
Level of evidence: very low
The quality of evidence is downgraded due to study limitations, inconsistency, and imprecision.
I=intervention; C=comparison; CI=confidence interval
«Aguiar LB, Politano CA, Costa-Paiva L, et al. Efficacy of Fractional CO(2) Laser, Promestriene, and Vaginal Lubricant in the Treatment of Urinary Symptoms in Postmenopausal Women: A Randomized Clinica»124/2414 weeks6.45 (4.67)11.47 (5.95)not reported, P-value = 0.116
«Alexander JW, Karjalainen P, Ow LL, et al. CO(2) surgical laser for treatment of stress urinary incontinence in women: a randomized controlled trial. Am J Obstet Gynecol 2022;227(3):473.e1-473.e12 »247/423 monthsMean change from baseline 10.95 (4.65)Mean change from baseline 9.53 (4.22)-0.64 (-2.09 to 0.82)
favors intervention
«Lauterbach R, Aharoni S, Justman N, et al. The efficacy and safety of a single maintenance laser treatment for stress urinary incontinence: a double-blinded randomized controlled trial. Int Urogynecol»363/683 monthsISIQ-UI (not SF?)
16.5 (3.3)
10.3 (2.8)not reported, p-value 0.003
Table 4. Outcome 2: ICIQ-UI SF at 6 months.
Reference Number of studies and number of patients (I/C) Follow-up time Mean (sd) I Mean (sd) CMean difference (95% CI)
Level of evidence: moderate
The quality of evidence is downgraded due to imprecision.
I=intervention; C=comparison; CI=confidence interval
«Lauterbach R, Aharoni S, Justman N, et al. The efficacy and safety of a single maintenance laser treatment for stress urinary incontinence: a double-blinded randomized controlled trial. Int Urogynecol»363/686 monthsISIQ-UI (not short form?) 8.8 (3.6)8.6 (3.1)not reported, p-value 0.64
«Seki AS, Bianchi-Ferraro AMHM, Fonseca ESM, et al. CO(2) Laser and radiofrequency compared to a sham control group in treatment of stress urinary incontinence (LARF study arm 3). A randomized controll»442/506 monthsMedian 8 (range 0–20)Median 11 (range 3–20)not reported
Table 5. Outcome 3: One-hour pad weight at 3 months.
Reference Number of studies and number of patients (I/C) Follow-up time Mean (sd) I Mean (sd) CMean difference (95% CI)
Level of evidence: high
I=intervention; C=comparison; CI=confidence interval
«Alexander JW, Karjalainen P, Ow LL, et al. CO(2) surgical laser for treatment of stress urinary incontinence in women: a randomized controlled trial. Am J Obstet Gynecol 2022;227(3):473.e1-473.e12 »248/493 monthsMedian 8 (IQR 6-35)Median 10 (IQR 6-60)Relative reduction 0.82 (0.47-1.43)
«Lauterbach R, Aharoni S, Justman N, et al. The efficacy and safety of a single maintenance laser treatment for stress urinary incontinence: a double-blinded randomized controlled trial. Int Urogynecol»363/683 months2.3 (1.3)5.6 (1.1)-
«Seki AS, Bianchi-Ferraro AMHM, Fonseca ESM, et al. CO(2) Laser and radiofrequency compared to a sham control group in treatment of stress urinary incontinence (LARF study arm 3). A randomized controll»442/506 monthsMedian 0 (range 0–60)Median
2 (range 0–46)
-

References

  1. Aguiar LB, Politano CA, Costa-Paiva L, et al. Efficacy of Fractional CO(2) Laser, Promestriene, and Vaginal Lubricant in the Treatment of Urinary Symptoms in Postmenopausal Women: A Randomized Clinical Trial. Lasers Surg Med 2020;52(8):713-720 «PMID: 31990089»PubMed
  2. Alexander JW, Karjalainen P, Ow LL, et al. CO(2) surgical laser for treatment of stress urinary incontinence in women: a randomized controlled trial. Am J Obstet Gynecol 2022;227(3):473.e1-473.e12 «PMID: 35662546»PubMed
  3. Lauterbach R, Aharoni S, Justman N, et al. The efficacy and safety of a single maintenance laser treatment for stress urinary incontinence: a double-blinded randomized controlled trial. Int Urogynecol J 2022;33(12):3499-3504 «PMID: 35195738»PubMed
  4. Seki AS, Bianchi-Ferraro AMHM, Fonseca ESM, et al. CO(2) Laser and radiofrequency compared to a sham control group in treatment of stress urinary incontinence (LARF study arm 3). A randomized controlled trial. Int Urogynecol J 2022;33(12):3535-3542 «PMID: 35254473»PubMed