NCT02850120

Brief Summary

Complications from mesh procedures (i.e. insertion of tension-free vaginal tapes (TVT), trans-obturator tapes (TOT) and suprapubic slings (SS)) used during surgical treatment of stress urinary incontinence have caused major concern around the world. The investigators aim to conduct a retrospective cohort study using administrative inpatient data from the Hospital Episode Statistics (HES) database to determine the complications of all first-time surgical mesh procedures in the treatment of stress urinary incontinence (SUI) in women treated in a National Health Service (NHS) hospital in England who were discharged from hospital between 1st April 2007 and 31st March 2015. The primary outcome measure is the number and types of complications (occurring peri-procedurally, within 30 days of the mesh procedure and those occurring during follow-up). Additional outcomes recorded include: the numbers and types of mesh procedures, including those with potentially confounding concomitant procedures.

Trial Health

100
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
101,081

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Apr 2007

Longer than P75 for all trials

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

April 1, 2007

Completed
7.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2015

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2015

Completed
1.4 years until next milestone

First Submitted

Initial submission to the registry

July 18, 2016

Completed
11 days until next milestone

First Posted

Study publicly available on registry

July 29, 2016

Completed
Last Updated

July 29, 2016

Status Verified

July 1, 2016

Enrollment Period

7.9 years

First QC Date

July 18, 2016

Last Update Submit

July 27, 2016

Conditions

Keywords

surgical meshobservational studyintraoperative complicationspostoperative complications

Outcome Measures

Primary Outcomes (1)

  • Long-term complications

    Readmission for further mesh surgery or for symptoms indicating complication

    Longitudinal analysis of all episodes of care available in HES (up to 96 months)

Secondary Outcomes (5)

  • Type of mesh used

    Longitudinal analysis of all episodes of care available in HES (up to 96 months)

  • Frequency of treatment-related adverse events during initial hospital stay for mesh insertion procedure

    During hospital admission when surgical mesh was inserted (length of hospital stay can vary between patients from 0-100 days)

  • Nature of treatment-related adverse events as determined by clinical coding practice of ICD-10 codes (Aylin et al. BMJ. 2004)

    During hospital admission when surgical mesh was inserted (length of hospital stay can vary between patients from 0-100 days)

  • Frequency of 30-day complications

    Occurring within 30 days of surgical mesh insertion procedure

  • Nature of treatment-related adverse events occurring within 30 days of mesh procedure as determined by clinical coding practice of ICD-10 codes (Aylin et al. BMJ. 2004)

    Occurring within 30 days of surgical mesh insertion procedure

Study Arms (2)

Unconfounded

All hospital admissions including Tension-free Vaginal Tape (TVT), Trans-obturator tape (TOT) or suprapubic sling (SS) procedures with: 1. no concomitant procedures, 2. any concomitant procedures which were considered unlikely to have an effect on outcomes from their mesh insertion, or 3. only other concomitant procedures which were considered likely to be rescue procedures treating complications caused by the mesh insertion procedure itself.

Procedure: Tension-free vaginal tape (TVT)Procedure: Trans-obturator tape (TOT)Procedure: Suprapubic sling (SS)

Confounded

All hospital admissions for insertion of Tension-free Vaginal Tape (TVT), Trans-obturator tape (TOT) or suprapubic sling (SS) procedures with concomitant procedures likely to affect outcomes.

Procedure: Tension-free vaginal tape (TVT)Procedure: Trans-obturator tape (TOT)Procedure: Suprapubic sling (SS)

Interventions

Surgical insertion of Tension-free vaginal tape (TVT) polypropylene mesh in the treatment of stress urinary incontinence.

ConfoundedUnconfounded

Surgical insertion of Trans-obturator tape (TOT) polypropylene mesh in the treatment of stress urinary incontinence.

ConfoundedUnconfounded

Surgical insertion of Suprapubic sling (SS) polypropylene mesh in the treatment of stress urinary incontinence.

ConfoundedUnconfounded

Eligibility Criteria

Age18 Years+
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Women receiving surgical mesh intervention in the treatment of stress urinary incontinence.

You may qualify if:

  • Women with an Office of Population Censuses and Surveys Classification of Surgical Operations and Procedures 4th revision (OPCS-4) procedure code for an introduction of a Tension-free Vaginal Tape (TVT: M53.3), Trans-Obturator Tape (TOT: M53.6) or Supra-pubic Sling (SS: M52.1) surgical mesh procedure recorded in any of the 24 procedure fields captured in HES, and a recorded diagnosis of stress urinary incontinence based on International Classification of Diseases 10th revision (ICD-10) diagnoses: N39.3, N39.4, R32: T83.1, T83.4, T83.5, T83.6, T83.6, T83.8, T83.9, Z46.6, in any of the 20 diagnosis fields captured in HES.

You may not qualify if:

  • Duplicate episode of care (exact match on patient identifier; admission date and method; discharge date, destination and method; hospital, gender, age, all procedure codes and all diagnostic codes)
  • Male gender
  • Missing age
  • Aged less than 18 years
  • Invalid or missing admission method
  • Missing admission date
  • Patients with recorded episodes of care in HES which appear after a reported date of death.
  • Concomitant mesh surgery for pelvic organ prolapse surgery, or surgical mesh repair, removal, renewal or subsequent mesh insertion.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Urinary IncontinenceIntraoperative ComplicationsPostoperative Complications

Interventions

Suburethral Slings

Condition Hierarchy (Ancestors)

Urination DisordersUrologic DiseasesFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesMale Urogenital DiseasesLower Urinary Tract SymptomsUrological ManifestationsSigns and SymptomsPathological Conditions, Signs and SymptomsPathologic Processes

Intervention Hierarchy (Ancestors)

Prostheses and ImplantsEquipment and Supplies

Study Officials

  • Andrew Sims, PhD

    Newcastle upon Tyne Hospitals NHS Foundation Trust

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 18, 2016

First Posted

July 29, 2016

Study Start

April 1, 2007

Primary Completion

March 1, 2015

Study Completion

March 1, 2015

Last Updated

July 29, 2016

Record last verified: 2016-07

Data Sharing

IPD Sharing
Will not share

Hospital Episode Statistics data to reproduce results are available from the Health and Social Care Information Centre (HSCIC) via formal application process. Analytic code and its output will be shared.