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| Name | Class |
|---|---|
| Umeå University | OTHER |
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The SALSTER study is a register-based randomized clinical trial (R-RCT) that examines if laparoscopic salpingectomy instead of tubal ligation, as a contraceptive method, has no increased risk for complications and has no negative impact on ovarian function.
SALSTER Study
In the last years, the management of Fallopian tubes in benign surgery has drawn a lot of attention due to rising evidence showing that some aggressive forms of ovarian cancer may originate from the distal Fallopian tubes. Concerns were raised about the implications of salpingectomy to surgical outcome and function of the ovaries. The SALSTER study attempts to evaluate the effect of salpingectomy, in regards to surgical outcomes and ovarian function, in women seeking permanent contraception with tubal ligation.
The SALSTER study is a register-based randomized clinical trial (R-RCT) that examines if laparoscopic salpingectomy instead of tubal ligation, as a contraceptive method, has no increased risk for complications and has no negative impact on ovarian function. Complications will be assessed primarily at eight weeks post-surgery according to the Clavien-Dindo classification and the existing complications questionnaires in the Swedish National Quality Register of Gynecological Surgery (GynOp). Ovarian function will be primarily assessed by determining the age of natural menopause, measured through questionnaires on bleeding pattern in GynOp every other year. Approximately 900 patients will be recruited.
In a subset of patients, the difference in Anti-Müllerian Hormone (AMH) levels from the time of surgery and 1-year after surgery will be compared between the groups. Approximately 180 patients will be recruited.
The study is expected to start in the beginning of 2019 and the first results are expected in 2021.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Laparoscopic tubal ligation | Active Comparator | Patients who seek for surgical permanent contraception and randomized to laparoscopic tubal ligation |
|
| Laparoscopic bilateral salpingectomy | Active Comparator | Patients who seek for surgical permanent contraception and randomized to laparoscopic bilateral salpingectomy |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Laparoscopic tubal ligation | Procedure | Laparoscopic tubal ligation |
| |
| Measure | Description | Time Frame |
|---|---|---|
| Complications | Complication according to the Clavien-Dindo classification or specific questions on complications in GynOp Register (Swedish National Quality Register of Gynecological Surgery). Binary data. | Eight weeks post-operatively |
| Age at menopause | Determined from questionnaires on bleeding pattern in GynOp. Continuous data. | Twenty years |
| Measure | Description | Time Frame |
|---|---|---|
| Severe complications | Complications according to the Clavien-Dindo classification or the specific questions on complications in GynOp. Binary data. | Eight weeks post-operatively |
| Operative time |
| Measure | Description | Time Frame |
|---|---|---|
| Absolute change in AMH | Measured in mg/L. Continous data. | Measured at baseline and 1 year post-operatively |
Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Annika Strandell | Sahlgrenska Academy | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Sahlgrenska University Hospital | Gothenburg | 413 45 | Sweden |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| Background | Collins, E., Strandell, A., Granåsen, G., I. A. (2018). Increased risk of menopausal symptoms one year after opportunistic salpingectomy - A retrospective observational cohort study based on the Swedish National Quality Register of Gynecological Surgery. Paris: EBCOG. Retrieved from http://www.ebcog2018.org/content/detailed-program | ||
| 28577884 | Background | Dilley SE, Havrilesky LJ, Bakkum-Gamez J, Cohn DE, Michael Straughn J Jr, Caughey AB, Rodriguez MI. Cost-effectiveness of opportunistic salpingectomy for ovarian cancer prevention. Gynecol Oncol. 2017 Aug;146(2):373-379. doi: 10.1016/j.ygyno.2017.05.034. Epub 2017 Jun 1. | |
| 15273542 |
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| Type | Includes Protocol | Includes SAP | Includes ICF | Document Label | Document Date | Document Uploaded Date | Document File Name |
|---|---|---|---|---|---|---|---|
| SAP | No | Yes | No | Statistical Analysis Plan | Jan 12, 2025 | Jan 15, 2025 | SAP_002.pdf |
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| Laparoscopic bilateral salpingectomy |
| Procedure |
Laparoscopic bilateral salpingectomy |
|
In minutes. Continous data.
| At day of surgery |
| Perioperative blood loss | In millilitres. Continous data. | At day of surgery |
| Length of hospital stay | In Days. Continous data. | Assessment will be done at discharge from hospital after surgery, including a period up to 8 weeks |
| Complications according to Clavien-Dindo | Assessed according to Clavien-Dindo. Binary data. | One year after surgery |
| Complications | Assessed according to the existing questions on complications in GynOp. Binary data. | One year after surgery |
| Age at the start of the perimenopausal state | Assessed through questionnaires in GynOp. Continous data. | Up to 55 years of age |
| Length of the perimenopausal state | Assessed in GynOp. Measured in days. Continous data. | Up to 55 years of age |
| Change in menopausal symptom score | Assessed with Menopause Rating Scale (MRS) in GynOp. MRS is a validated scale consisting of 11 questions, each yields a score of 1-4. Total score is reported, ranging from 4 to 44, where 4 indicates no menopausal symptoms and 44 maximum symptoms. Ordered categorical data. | Up to 55 years of age |
| Use of hormone replacement therapy at any time during follow-up | Either an answer yes to question in GynOp or prescription in The Drug Prescription Register will give information on the outcome (yes/no). Binary data. | Up to 55 years of age |
| Subsequent surgery on uterus, salpinges and/or ovaries. Binary data. | Assessed through GynOp and through The Patient register. Both registers yield the same data (subsequent surgery yes/no). Binary data. | At one year and up to 55 years of age |
| Pregnancy | Assessed in GynOp, whether pregnancy has occurred (yes/no). Binary data. | At one year and up to 55 years of age |
| Epithelial ovarian cancer including histopathological types and grade, primary tubal and peritoneal cancer, as well as clinical stage according to International Federation of Gynecology and Obstetrics (FIGO) | Assessed through The Swedish Cancer Register, The Swedish Quality Register for Gynaecological Cancer, The Swedish Cause of Death Register and The Swedish Population Register. Time-to event data. | 40 years |
| Secondary expressions of estrogen deficiency | Measures of fractures related to osteoporosis and cardio-vascular events will be assessed through the Patient register. Binary and time-to-event data. | 40 years |
| Background |
| Dindo D, Demartines N, Clavien PA. Classification of surgical complications: a new proposal with evaluation in a cohort of 6336 patients and results of a survey. Ann Surg. 2004 Aug;240(2):205-13. doi: 10.1097/01.sla.0000133083.54934.ae. |
| 25628372 | Background | Falconer H, Yin L, Gronberg H, Altman D. Ovarian cancer risk after salpingectomy: a nationwide population-based study. J Natl Cancer Inst. 2015 Jan 27;107(2):dju410. doi: 10.1093/jnci/dju410. Print 2015 Feb. |
| 28455082 | Background | Ganer Herman H, Gluck O, Keidar R, Kerner R, Kovo M, Levran D, Bar J, Sagiv R. Ovarian reserve following cesarean section with salpingectomy vs tubal ligation: a randomized trial. Am J Obstet Gynecol. 2017 Oct;217(4):472.e1-472.e6. doi: 10.1016/j.ajog.2017.04.028. Epub 2017 Apr 25. |
| 15345062 | Background | Heinemann K, Ruebig A, Potthoff P, Schneider HP, Strelow F, Heinemann LA, Do MT. The Menopause Rating Scale (MRS) scale: a methodological review. Health Qual Life Outcomes. 2004 Sep 2;2:45. doi: 10.1186/1477-7525-2-45. |
| 28437631 | Background | Helden JV, Weiskirchen R. Age-independent anti-Mullerian hormone (AMH) standard deviation scores to estimate ovarian function. Eur J Obstet Gynecol Reprod Biol. 2017 Jun;213:64-70. doi: 10.1016/j.ejogrb.2017.04.029. Epub 2017 Apr 18. |
| 28223181 | Background | Kotlyar A, Gingold J, Shue S, Falcone T. The Effect of Salpingectomy on Ovarian Function. J Minim Invasive Gynecol. 2017 May-Jun;24(4):563-578. doi: 10.1016/j.jmig.2017.02.014. Epub 2017 Feb 20. |
| 29061967 | Background | Labidi-Galy SI, Papp E, Hallberg D, Niknafs N, Adleff V, Noe M, Bhattacharya R, Novak M, Jones S, Phallen J, Hruban CA, Hirsch MS, Lin DI, Schwartz L, Maire CL, Tille JC, Bowden M, Ayhan A, Wood LD, Scharpf RB, Kurman R, Wang TL, Shih IM, Karchin R, Drapkin R, Velculescu VE. High grade serous ovarian carcinomas originate in the fallopian tube. Nat Commun. 2017 Oct 23;8(1):1093. doi: 10.1038/s41467-017-00962-1. |
| 1565019 | Background | McKinlay SM, Brambilla DJ, Posner JG. The normal menopause transition. Maturitas. 1992 Jan;14(2):103-15. doi: 10.1016/0378-5122(92)90003-m. |
| 15111296 | Background | Shih IeM, Kurman RJ. Ovarian tumorigenesis: a proposed model based on morphological and molecular genetic analysis. Am J Pathol. 2004 May;164(5):1511-8. doi: 10.1016/s0002-9440(10)63708-x. |
| 28285425 | Background | Shinar S, Blecher Y, Alpern S, Many A, Ashwal E, Amikam U, Cohen A. Total bilateral salpingectomy versus partial bilateral salpingectomy for permanent sterilization during cesarean delivery. Arch Gynecol Obstet. 2017 May;295(5):1185-1189. doi: 10.1007/s00404-017-4340-x. Epub 2017 Mar 11. |
| 24716733 | Background | Tehrani FR, Mansournia MA, Solaymani-Dodaran M, Azizi F. Age-specific serum anti-Mullerian hormone levels: estimates from a large population-based sample. Climacteric. 2014 Oct;17(5):591-7. doi: 10.3109/13697137.2014.912262. Epub 2014 Jul 9. |
| 27054925 | Background | Trabuco EC, Moorman PG, Algeciras-Schimnich A, Weaver AL, Cliby WA. Association of Ovary-Sparing Hysterectomy With Ovarian Reserve. Obstet Gynecol. 2016 May;127(5):819-827. doi: 10.1097/AOG.0000000000001398. |
| 26045974 | Background | Wang Y, Mang M, Wang Y, Wang L, Klein R, Kong B, Zheng W. Tubal origin of ovarian endometriosis and clear cell and endometrioid carcinoma. Am J Cancer Res. 2015 Feb 15;5(3):869-79. eCollection 2015. |
| 39974774 | Derived | Strandell A, Magarakis L, Sundfeldt K, Palsson M, Liv P, Idahl A. Salpingectomy versus tubal occlusion in laparoscopic sterilisation (SALSTER): a national register-based randomised non-inferiority trial. Lancet Reg Health Eur. 2024 Aug 11;45:101026. doi: 10.1016/j.lanepe.2024.101026. eCollection 2024 Oct. |
| 37666548 | Derived | Magarakis L, Idahl A, Sundfeldt K, Liv P, Palsson M, Strandell A. SALpingectomy for STERilisation (SALSTER): study protocol for a Swedish multicentre register-based randomised controlled trial. BMJ Open. 2023 Sep 4;13(9):e071246. doi: 10.1136/bmjopen-2022-071246. |