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  4. Sexually transmitted infections (STIs)
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  6. External Anogenital Warts
  7. Management
Important: please update your RDS app to version 4.7.3

Welcome to the March 2025 update from the RDS team

1.     RDS issues - resolutions

1.1 Stability issues - Tactuum implemented a fix on 24th March which we believe has finally addressed the stability issues experienced over recent weeks.  The issue seems to have been related to the new “Tool export” function making repeated calls for content when new toolkit nodes were opened in Umbraco. No outages have been reported since then, and no performance issues in the logs, so fingers crossed this is now resolved.

1.2 Toolkit URL redirects failing– these were restored manually for the antimicrobial calculators on the 13th March when the issue occurred, and by 15th March for the remainder. The root cause was traced to adding a new hostname for an app migrated from another health board and made live that day. This led to the content management system automatically creating internal duplicate redirects, reaching the maximum number of permitted redirects and most redirects therefore ceasing to function.

This issue should not happen again because:

  • All old apps are now fully migrated to RDS. The large number of migrations has contributed to the high number of automated redirects.
  • If there is any need to change hostnames in future, Tactuum will immediately check for duplicates.

1.3 Gentamicin calculators – Incidents have been reported incidents of people accessing the wrong gentamicin calculator for their health board.  This occurs when clinicians are searching for the gentamicin calculator via an online search engine - e.g. Google - rather than via the health board directed policy route. When accessed via an external search engine, the calculator results are not listed by health board, and the start page for the calculator does not make it clearly visible which health board calculator has been selected.

The Scottish Antimicrobial Prescribing Group has asked health boards to provide targeted communication and education to ensure that clinicians know how to access their health board antimicrobial calculators via the RDS, local Intranet or other local policy route. In terms of RDS amendments, it is not currently possible to change the internet search output, so the following changes are now in progress:

  • The health board name will now be displayed within the calculator and it will be made clear which boards are using the ‘Hartford’ (7mg/kg) higher dose calculator
  • Warning text will be added to the calculator to advise that more than one calculator is in use in NHS Scotland and that clinicians should ensure they access the correct one for their health board. A link to the Right Decision Service list of health board antimicrobial prescribing toolkits will be included with the warning text. Users can then access the correct calculator for their Board via the appropriate toolkit.

We would encourage all editors and users to use the Help and Support standard operating procedure and the Editors’ Teams channel to highlight issues, even if you think they may be temporary or already noted. This helps the RDS team to get a full picture of concerns and issues across the service.

 

2.     New RDS presentation – RDS supporting the patient journey

A new presentation illustrating how RDS supports all partners in the patient journey – multiple disciplines across secondary, primary, community and social care settings – as well as patients and carers through self-management and shared decision-making tools – is now available. You will find it in the Promotion and presentation resources for editors section of the Learning and support toolkit.

3.     User guides

A new user guide is now available in the Guidance and tips section of Resources for providers within the Learning and Support area, explaining how to embed content from Google Calendar, Google Maps, Daily Motion, Twitter feeds, Microsoft Stream and Jotforms into RDS pages. A webinar for editors on using this new functionality is scheduled for 1 May 3-4 pm (booking information below.)

A new checklist to support editors in making all the checks required before making a new toolkit live is now available at the foot of the “Request a new toolkit” standard operating procedure. Completing this checklist is not a mandatory part of the governance process, but we would encourage you to use it to make sure all the critical issues are covered at point of launch – including organisational tags, use of Alias URLs and editorial information.

4.Training sessions for RDS editors

Introductory webinars for RDS editors will take place on:

  • Tuesday 29th April 4-5 pm
  • Thursday 1st May 4-5 pm

Special webinar for RDS editors – 1 May 3-4 pm

This webinar will cover:

  1. a) Use of the new left hand navigation option for RDS toolkits.
  2. b) Integration into RDS pages of content from external sources, including Google Calendar, Google Maps and simple Jotforms calculators.

Running usage statistics reports using Google analytics

  • Wednesday 23rd April 2pm-3pm
  • Thursday 22nd May 2pm-3pm

To book a place on any of these webinars, please contact Olivia.graham@nhs.scot providing your name, role, organisation, title and date of the webinar you wish to attend.

5.New RDS toolkits

The following toolkits were launched during March 2025:

SIGN guideline - Prevention and remission of type 2 diabetes

Valproate – easy read version for people with learning disabilities (Scottish Government Medicines Division)

Obstetrics and gynaecology induction toolkit (NHS Lothian) – password-protected, in pilot stage.

Oral care for care home and care at home services (Public Health Scotland)

Postural care in care homes (NHS Lothian)

Quit Your Way Pregnancy Service (NHS GGC)

 

6.New RDS developments

Release of the redesign of RDS search and browse, archiving and version control functionality, and editing capability for shared content, is now provisionally scheduled for early June.

The Scottish Government Realistic Medicine Policy team is leading development of a national approach to implementation of Patient-Reported Outcome Measures (PROMs) as a key objective within the Value Based Health and Care Action Plan. The Right Decision Service has been commissioned to deliver an initial version of a platform for issuing PROMs questionnaires to patients, making the PROMs reports available from patient record systems, and providing an analytics dashboard to compare outcomes across services.  This work is now underway and we will keep you updated on progress.

The RDS team has supported Scottish Government Effective Prescribing and Therapeutics Division, in partnership with Northern Ireland and Republic of Ireland, in a successful bid for EU funding to test develop, implement and assess new integrated care pathways for polypharmacy, including pharmacogenomics. As part of this project, the RDS will be working with NHS Tayside to test extending the current polypharmacy RDS decision support in the Vision primary care electronic health record system to include pharmacogenomics decision support.

7. Implementation projects

We have just completed a series of three workshops consulting on proposed improvements to the Being a partner in my care: Realistic Medicine together app, following piloting on 10 sites in late 2024. This app has been commissioned by Scottish Government Realistic Medicine to support patients and citizens to become active partners in shared decision-making and encouraging personalised care based on outcomes that matter to the person. We are keen to gather more feedback on this app. Please forward any feedback to ann.wales3@nhs.scot

 

 

Management

Warning

 

In General

  • No treatment may be an option, as about 30% of patients will experience spontaneous clearance of warts over a period of up to 6 months. However most patients seek treatment for the discomfort, anxiety, distress or the social unacceptability that warts cause.
  • The objective of treatment is removal of visible warts. Eradication of HPV is not an achievable goal with current therapies and treatment has no measurable effect on transmission rates between partners.
  • The evidence base to direct first and second line treatments is not strong
  • All treatments have significant failure and relapse rates see Results of randomized controlled trials of therapies 
  • Treatment may involve discomfort and local skin reactions
  • Treatment choice depends on the patient preference as well as morphology, number, and distribution of warts
  • Treatment decisions should be made after discussing the appropriate options with the patient
  • Provision of written information on management of treatment side effects is recommended
  • Very large wart lesions should be considered for surgical treatment
  • Topical anaesthetics (eg lidocaine cream, EMLA®) can be used prior to cryotherapy particularly when treating larger lesions.
  • Caution should be exercised using any modality of treatment because of the danger of oedema and necrosis of surrounding tissue.

Summary of the results of randomized controlled trials of therapies for anogenital warts among HIV negative patients (BASHH 2015)

 

Treatment  Range of clearance rates based on an `intention to treat analysis` Range of clearance
rates based on a `per protocol analysis` (determined at time in weeks; range)
Range of recurrence
rates (determined at time in weeks; range)
Podophyllotoxin solution
0.5%
45-83%  55-83% (3-6)  13-100% (8-21)
Podophyllotoxin cream
0.15%
43-70%  43-70% (4)  6-55% (8-12)
Imiquimod cream 5%  35-68%  55-81% (16)  6-26% (10-24)
Cryotherapy  44-75%  67-92% (6-10)  21-42% (4-12)

Note

  1. Clearance rates and recurrence rates are not directly comparable as clearance was measured at different times from the start of treatment and high loss to follow up was often experienced in the trials.
  2. The `intention to treat` analysis of clearance rates provides a conservative estimate of efficacy. The number enrolled into each group was taken as the denominator and the number known to have cleared as the numerator.
    For any missing data, participants were assumed not to be cleared. For the `per protocol analysis, only those for whom follow-up data were available were included in the denominator and numerator; this may overestimate the efficacy.

Guidance for the initial management of external genital and peri-anal warts in men and non pregnant women is set out in the  Initial Management of External Genital and Peri-anal Warts in Men and Non Pregnant Women algorithm.

Important Considerations

  • Latex condoms may be weakened by podophyllotoxin and imiquimod
  • Clinicians should avoid the inadvertent exposure of pregnant women to podophyllotoxin and imiquimod which potentially may arise though the use of these products in a sexual partner. The area which is under treatment in a partner should be thoroughly washed before sexual contact occurs.
  • GUM Consultants who are referred recalcitrant warts for review may consider additional therapeutic options such as trichloracetic acid
  • Surgical excision or hyfrecation should be considered for warts which have failed to respond
  • Biopsy may be necessary in some cases, eg, unusual appearance or failing to respond to treatment

Treatment Choice

In choosing between self-applied agents, podophyllotoxin and imiquimod appear broadly equivalent in safety
and efficacy. However its lower cost, shorter treatment duration and faster mode of action may make
podophyllotoxin preferred as a first choice. Sinecatechins have similar clearance rates in trials but no
randomised head-to-head comparisons with other treatments have been performed and the frequency of
dosing(three times daily) may be a barrier to adherence

Urethral meatus

  • If the base of the lesions is seen, treatment with cryotherapy
  • Lesions deeper in the urethra should be surgically ablated under direct vision, which may require referral to a urologist or the use of a meatoscope.

Refer to West of Scotland Pregnancy and STIs Guideline for the managment of Genital warts in pregnancy 

These may be refractory to treatment and should be discussed with a senior doctor from the outset.

Podophyllotoxin (WARTICON® and CONDYLINE® ) are purified extracts of podophyllin suitable for self administration

  • Warticon® and Condyline® are licensed for the treatment of warts of the penis or the external female genitalia.
  • Supervision by medical staff is recommended when the lesion area treated is greater than 4 cm2
  • Warticon® and Condyline® are not licensed for use of extragential warts, however Warticon® is commonly used on external lesions at all sites
  • Podophyllotoxin solution (0.5%) is preferred over the 0.15% cream formulation where it can be easily
    applied owing to slightly superior efficacy
  • Condyline® is only available as a 0.5% alcoholic solution
  • Treatment cycles consist of twice daily application for 3 days followed by 4 days rest for 4 cycles
  • Warticon® and Condyline® should not be used in pregnancy and lactation
  • It should not be used on broken skin
  • Treatment should be discontinued if significant side effects (eg soreness, ulceration)
  • Consider repeat cycles of treatment if the warts are responding although this is not licensed (see Initial Management of External Genital and Peri-anal Warts in Men and Non Pregnant Women)
  • Unprotected sexual contact should be avoided soon after application because of a possible irritant effect on the partner

  • Imiquimod (ALDARA®) is an immune response modifier
  • It is licensed for external genital and peri-anal warts
  • It should not be used in pregnancy and breast feeding
  • It should be applied three times per week (example: Monday, Wednesday and Friday) and washed off 6 to 10 hours later
  • It frequently causes local skin / mucous membrane irritation when applied for anogenital warts. This may be due to narrow therapeutic margin. Temporary halting of treatment may be required to manage side effects.
  • Unprotected sexual contact should be avoided soon after application because of a possible irritant effect on the partner
  • Use should continue until the clearance of visible genital or perianal warts or for a maximum of 16 weeks per episode of warts with 4 weekly reviews.
  • Response to treatment may be delayed for some weeks. Extending treatment to 20 weeks or beyond in those who are showing a response is common practice but there is no trial evidence concerning this.
  • Clinical trials of imiquimod versus placebo have shown response rates comparable with other topical agents.
  • A lower relapse rate has been suggested, but clinical trials comparing relapse after other topical therapies have not been conducted.
  • Normally used for refractory warts which have failed to respond to other treatments, or warts which have been assessed by a senior doctor/senior nurse and are thought likely to be refractory to treatment (eg extensive carpet warts). Some services may choose to use first line for keratinised lesions when cryotherapy is not an option.
  • Immune deficiency may not be a contraindication for the use of imiquimod topically for anogenital warts and it has been used in HIV positive subjects but use in patients who are immunosuppressed should be discussed with a senior clinician.
  • Has the potential to exacerbate inflammatory skin conditions; it should be used with caution in patients with autoimmune conditions although systemic absorption from topical treatment is likely to be negligible.

  • Cryotherapy is the name given to treatments which involve liquid nitrogen spray freezing the skin, causing cytolysis (cell breakdown) resulting in necrosis
  • Suitable for a small number of lesions
  • Success partly depends on ability to treat at regular (normally weekly) intervals. Services report high rates of non attendance for appointments. These factors should be taken into account when deciding whether home treatment with topical agents may be preferable.
  • Treatment of choice in pregnancy and intrameatal warts
  • Treatment should be applied until a halo of freezing has been established a few millimetres round the treated lesion. A freeze, thaw, freeze technique should be used.
  • Response rates depend on size and chronicity of the lesions
  • Usually repeated at weekly intervals; lack of response after four weeks should prompt consideration of an alternative treatment modality.
  • Liquid nitrogen is a hazardous substance which requires great care during handling. Only health professionals who have received appropriate training may administer cryotherapy.
  • Caution: The storage and handling of liquid nitrogen should be undertaken according to health and safety guidance (see British Oxygen British Oxygen, COSHH Essentials  and the Health & Safety Executive  

 

Editorial Information

Last reviewed: 31/05/2024

Next review date: 31/05/2028

Author(s): West of Scotland Managed Clinical Network in Sexual Health Clinical Guidelines Group .

Version: 8.1

Approved By: West of Scotland Managed Clinical Network in Sexual Health