Electronic continuous pain measurement versus Verbal Rating Scale in gynaecology

ISRCTN ISRCTN15427669
DOI https://doi.org/10.1186/ISRCTN15427669
Protocol serial number N/A
Sponsor VU University Medical Center
Funder VU University Medical Center
Submission date
19/01/2017
Registration date
30/01/2017
Last edited
23/01/2017
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Urological and Genital Diseases
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
Minimally invasive surgery is becoming more and more common in hospitals. These procedures are performed through tiny incisions instead of one large opening, and can greatly reduce the length of surgery and the recovery time. More and more gynaecological procedures (procedures on women’s reproductive parts) are performed in an outpatient setting thanks to the development of these minimally invasive procedures, mostly performed without the need for sedation. During the procedure, patients’ perception of pain plays a key role in how well they are able to tolerate the procedure. Pain perception is usually measured using pain scores, where participants are asked to rate their level of pain at certain timepoints, however this technique is not always accurate. Being able to effectively measure pain levels during the different parts of a procedure could therefore help better deliver pain relief which could make procedures more successful. The Continuous Pain Score Meter (CPSM) is a new electrical device which has been developed to continuously monitor pain levels throughout the operation. The aim of this study is to compare the effectiveness of this device at assessing pain, compared to standard techniques.

Who can participate?
Women aged between 18 and 80 who are scheduled to have a gynaecological procedure in an outpatient setting.

What does the study involve?
Before having their surgery, participants are asked to rate how anxious they are feeling. They then receive the surgery they have been scheduled for while they are awake. The women are given the CPSM meter and instructed about how to use it. They are then asked to express their pain throughout the procedure using the device so that their pain levels can be assessed continuously. After the surgery, they are asked to rate the average pain level they felt during the procedure using a standard verbal scale. Two years later, participants are telephoned to ask them to rate the pain felt in their surgery using a standard verbal scale from what they remember.

What are the possible benefits and risks of participating?
There are no direct benefits involved with participating. There is a risk that participants may experience discomfort whilst having their procedures performed.

Where is the study run from?
1. Onze Lieve Vrouwe Gasthuis (Netherlands)
2. VU University Medical Center (Netherlands)

When is the study starting and how long is it expected to run for?
June 2011 to January 2017

Who is funding the study?
VU University Medical Center (Netherlands)

Who is the main contact?
Miss Marjoleine Louwerse
mail@marjoleinelouwerse.nl

Contact information

Miss Marjoleine Louwerse
Scientific

VU University Medical Center
De Boelelaan 1117
Amsterdam
1081 HV
Netherlands

Phone +31 20 444 4444
Email mail@marjoleinelouwerse.nl

Study information

Primary study designObservational
Study designProspective multi-centre observational cohort study
Secondary study designCohort study
Study type Participant information sheet
Scientific titleElectronic continuous pain measurement versus Verbal Rating Scale in gynaecology: a prospective observational cohort study
Study objectivesThe aim of this study is to:
1. Compare pain measurement between a new electronic device, the Continuous Pain Score Meter (CPSM) and the Verbal Rating Scale (VRS) during gynaecological procedures in an outpatient setting
2. Correlate these outcomes with baseline anxiety, with scored tolerability of the procedure and with pain perception 2 years after the procedure
Ethics approval(s)No ethical approval was deemed necessary for this non-WMO required study.
Health condition(s) or problem(s) studiedGynaecological procedures
InterventionBefore the procedure, patients have their anxiety score recorded. When the patient is positioned, she receives instructions on the use of the CPSM and as a part of this instruction the meter is tested once before the start of the procedure by giving the patient a mild pressure stimulus on her hand. Then, women are asked to express their pain by controlling the CPSM during the entire procedure. Immediately after the procedure, participants are asked to express the experienced average pain during the entire procedure, using the Verbal Rating Scale (VRS). Tolerability of the procedure is also reported at this point.

After a period of two years women are telephoned and asked to report the VRS and tolerability of the procedure again to determine what the effect is of recollection on pain perception.
Intervention typeDevice
Phase
Drug / device / biological / vaccine name(s)
Primary outcome measure(s)

Pain of outpatient gynecological procedure is measured using the Verbal Rating Scale (VRS 0-10) directly after a procedure versus pain measurement and using the Continuous Pain Score Meter (CPSM, CPSM-AUC, CPSM-PPS, CPSM-APS) during the procedure.

Key secondary outcome measure(s)

1. Recollection of pain perception is assessed using the Verbal Rating Scale (VRS 0-10) after two years
2. Anxiety is measured using a numerical rating scale (0-10) at baseline
3. Tolerability of the procedure is assessed post-surgery and after two years

Completion date01/01/2017

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
Upper age limit80 Years
SexFemale
Target sample size at registration108
Key inclusion criteria1. Aged between 18-80 years
2. Scheduled for a hysteroscopy, colposcopy or ovum pick-up in an outpatient setting
Key exclusion criteria1. Inability to comprehend Dutch or English properly
2. For hysteroscopy: pregnancy or women in the luteal phase without the use of contraception, known cervical stenosis or malignancy, current Sexual Transmitted Disease (STD) or Pelvic Inflammatory Disease (PID) or contra-indications for the use of NSAIDs
Date of first enrolment01/08/2011
Date of final enrolment30/11/2011

Locations

Countries of recruitment

  • Netherlands

Study participating centres

Onze Lieve Vrouwe Gasthuis (Location East)
Oosterpark 9
Amsterdam
1091 AC
Netherlands
VU University Medical Center
De Boelelaan 1117
Amsterdam
1081 HV
Netherlands

Results and Publications

Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
IPD sharing planThe datasets generated during and/or analysed during the current study are/will be available upon request from Marjoleine Louwerse (mail@marjoleinelouwerse.nl)

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Participant information sheet Participant information sheet 11/11/2025 11/11/2025 No Yes