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Conducting invasive urodynamics in primary care: qualitative interview study examining experiences of patients and healthcare professionals

Abstract

Background

Invasive urodynamics is used to investigate the causes of lower urinary tract symptoms; a procedure usually conducted in secondary care by specialist practitioners. No study has yet investigated the feasibility of carrying out this procedure in a non-specialist setting. Therefore, the aim of this study was to explore, using qualitative methodology, the feasibility and acceptability of conducting invasive urodynamic testing in primary care.

Methods

Semi-structured interviews were conducted during the pilot phase of the PriMUS study, in which men experiencing bothersome lower urinary tract symptoms underwent invasive urodynamic testing along with a series of simple index tests in a primary care setting. Interviewees were 25 patients invited to take part in the PriMUS study and 18 healthcare professionals involved in study delivery. Interviews were audio-recorded, transcribed verbatim and analysed using a framework approach.

Results

Patients generally found the urodynamic procedure acceptable and valued the primary care setting due to its increased accessibility and familiarity. Despite some logistical issues, facilitating invasive urodynamic testing in primary care was also a positive experience for urodynamic nurses. Initial issues with general practitioners receiving and utilising the results of urodynamic testing may have limited the potential benefit to some patients. Effective approaches to study recruitment included emphasising the benefits of the urodynamic test and maintaining contact with potential participants by telephone. Patients’ relationship with their general practitioner was an important influence on study participation.

Conclusions

Conducting invasive urodynamics in primary care is feasible and acceptable and has the potential to benefit patients. Facilitating study procedures in a familiar primary care setting can impact positively on research recruitment. However, it is vital that there is a support network for urodynamic nurses and expertise available to help interpret urodynamic results.

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Background

Lower urinary tract symptoms (LUTS) are highly prevalent amongst men aged over 40, with over 70% reporting at least one symptom [1], and are associated with reduced emotional wellbeing, productivity, and quality of life [2, 3]. Urodynamics is a specialist test for investigating the causes of LUTS [4]. It is typically conducted in secondary care and involves inserting catheters into the bladder and rectum to enable measurements pertaining to bladder function. A growing number of patients presenting with LUTS are eventually treated conservatively and thus could potentially be effectively managed in primary care [5, 6]. Managing LUTS in primary care settings could result in benefits for the patient and cost benefits for the NHS. However, general practitioners (GPs) currently do not have access to simple tools to accurately diagnose the cause of LUTS in men.

Recognising this issue, the UK National Institute for Health Research (NIHR) released a Health Technology Assessment (HTA) commissioned call for the development of a clinical decision aid to help inform treatment choice or need for specialist referral for men presenting with LUTS in primary care. The PriMUS study (‘Primary care management of lower urinary tract symptoms in men: development and validation of a diagnostic and clinical decision support tool’) addresses this brief [7]. PriMUS is a prospective diagnostic accuracy study based in UK primary care settings. Participants undergo simple index tests together with invasive urodynamics as a reference standard, to determine the combination of index tests that best predicts common urodynamic diagnoses. This will inform the development of a clinical decision support tool for use by GPs with their patients.

Invasive urodynamics is a complex procedure with risk of adverse effects, yet very few qualitative studies have explored patient acceptability of this test. One interview study [8] found patients experienced anxiety and embarrassment about the procedure, which was alleviated by healthcare professionals through effective interpersonal and communication skills. Previously, men participating in a randomised controlled trial involving urodynamics [9] found the procedure acceptable and valued the comprehensive insight into their symptoms. As healthcare professionals have been found to play an important role in the patient experience of urodynamics [8, 9], it is important to further explore their perspectives. Furthermore, no study has explored in-depth the attitudes of patients who have declined urodynamics, who may view the procedure differently [9].

PriMUS is the first large-scale study to implement invasive urodynamics in a primary care setting; no study has yet investigated the feasibility and acceptability of conducting this procedure in a non-specialist setting. This study aimed to explore in-depth the feasibility and acceptability of providing invasive urodynamics in primary care, including experiences of recruiting to a urodynamic study, encompassing the perspectives of patients (including those who declined the procedure) and healthcare professionals. Including these participant groups provided further insight into attitudes towards and experiences of urodynamics, and the feasibility of providing urodynamics in primary care, and sought to inform processes or interventions that could improve acceptability of this invasive procedure. Given the exploratory nature of the research, a qualitative approach was needed to enable detailed insight into participant experiences that could not be obtained via quantitative methods such as questionnaires. The qualitative study was conducted during the pilot phase of the PriMUS study, so that findings could inform changes to study processes where indicated.

Methods

Study design

This qualitative study was part of the larger PriMUS study, which gained ethical approval from Wales Research Ethics Committee 6. PriMUS is recruiting adult men presenting to their GP with one or more bothersome LUTS, in approximately 90 GP practices across Newcastle upon Tyne, South Wales and Bristol (see study protocol [7] for full inclusion and exclusion criteria). Participants to date underwent a series of index tests together with invasive urodynamics, which is usually carried out in secondary care by specialist practitioners. In the PriMUS study, the procedure was performed by trained research nurses in primary care settings. Results of the urodynamic procedure and index tests were uploaded to an online database, quality-checked and reviewed by clinical scientists and urologists on the study team (AB, MD, CH and MJD), and a summary of results for GPs was compiled manually. This included the likely diagnosis(es) and a flowchart of management recommendations based on the National Institute for Health and Care Excellence (NICE) guidelines [10].

Before conducting urodynamics as part of the study, research nurses were provided with a urodynamics manual and underwent a series of training activities to ensure competency, including completing an accredited urodynamic training course overseen by study urologists, shadowing urologists in secondary care settings and completing study specific interpretation and equipment training. They receive frequent, ongoing peer and clinical support from members of the study management team and have access to a named Urology Champion in each study region.

Qualitative methods such as interviews are particularly appropriate to increase understanding of patient experiences of trial processes [11] and can allow for the exploration of previously unanticipated issues that may be missed in quantitative studies. Therefore, semi-structured telephone interviews were conducted with men invited to take part in the main PriMUS study. Telephone and face-to-face interviews were also carried out with healthcare professionals involved in study delivery, including GPs and practice nurses involved in study recruitment, and research nurses who performed the urodynamic procedure.

Sampling and recruitment

Purposive sampling was used to support maximum variation in terms of study site, decision to participate in the main PriMUS study (for patients) and role in study delivery (for healthcare professionals). Patients invited to participate in the main study could indicate whether they consented to be contacted for a follow-up interview; this included both patients who consented to the main study and those who declined to participate. Patients consenting to be contacted were invited to take part in an interview once they had undergone all study procedures or had made the decision not to participate in the main PriMUS study. Interview participants were offered a £10 voucher for their contribution. Healthcare professionals were approached to take part once they had experience of study processes (e.g. recruiting patients or performing urodynamics). Recruitment continued until data saturation was reached. Informed consent (written or verbal) was obtained for all face-to-face and telephone interviews after participants had sufficient time to read the interview study information sheet.

Data collection

Semi-structured interview topic guides were developed in consultation with clinicians and patient representatives on the study team. Topics explored in patient interviews included thoughts about the main study information, the decision of whether to take part, concerns about the study and how others could be encouraged to participate. Those participating in the main study were also asked about their experience of study processes and specifically the urodynamic test. Topics covered in healthcare professional interviews included (as applicable) experiences of study recruitment, perceived patient acceptability of study processes, staff experiences of performing the urodynamic test and the feasibility of doing so in primary care. Topic guides were developed iteratively throughout the data collection period to allow for the exploration of previously unanticipated themes arising from the interviews. For example, after issues relating to urodynamic test results were highlighted by GPs, this was specifically explored in subsequent interviews.

Interviews were conducted between May 2018 and February 2019. Most were conducted by SM, an experienced qualitative health researcher, with the remainder conducted by medical students (EC, RH and FM) supervised by SM. To encourage respondents to give honest, unbiased feedback about their experience of the main study, the interviewers were not previously known to participants and had no involvement in main study procedures. All interviews were audio-recorded and transcribed verbatim for analysis.

Analysis

A framework approach [12] was used to analyse interview data. SM compiled a list of key categories to explore, with reference to the interview topic guide: (1) acceptability of invasive urodynamics in primary care, (2) feasibility of invasive urodynamics in primary care and (3) experiences of recruiting to a urodynamic study. After reading through transcripts, emergent sub-themes were identified within these three categories in the initial framework. Analysis was an iterative process, enabling interviews to continue until saturation was reached. Saturation was determined as being achieved once interviews resulted in no new themes and when detailed data had been collected relating to each identified theme. SM entered a framework of categories and sub-themes into NVivo V11 (QSR International), then uploaded and coded interview transcripts. Ten percent of transcripts was independently coded by NJW, and coding was compared and discussed to ensure inter-rater consistency. Sub-themes were refined throughout the coding process to ensure they captured the diversity of participants’ experiences. Once all interviews were coded, SM compiled tables to show a summary of each participant’s responses in relation to each category and sub-theme. Tables included data extracts from the coded interview transcripts; this enabled the validity of the proposed themes to be reviewed by SM and NJW, ensuring that there were sufficient data to support each of the emergent sub-themes, and that they provided an accurate reflection of participant experiences.

Results

Interviews were conducted with 25 male patients and 18 healthcare professionals, from 22 GP practices across Newcastle upon Tyne, South Wales and Bristol (Table 1). Interviews with patients lasted between 8 and 44 min (mean 23.0); interviews with healthcare professionals lasted between 9 and 30 min (mean 18.8). Eight sub-themes were identified under the three main framework categories: Acceptability of invasive urodynamics in primary care (three sub-themes), feasibility of invasive urodynamics in primary care (three sub-themes) and recruiting to a urodynamic study (two sub-themes) (see Table 2). Participant quotes are labelled with a unique participant identification number, with the prefix MSP for patients who participated in the main study, IP for patients who participated in the interview element only, GP for general practitioners and UN for urodynamic nurses.

Table 1 Participant characteristics
Table 2 Key framework categories and emergent sub-themes

Acceptability of invasive urodynamics in primary care

Apprehension and embarrassment

All patients who underwent urodynamics reported finding the procedure acceptable, with most finding it as they had expected, or better than expected. Around half reported discomfort, although this was universally described as brief or mild. Some patients described feeling apprehensive about the test; those with experience of similar medical procedures (e.g. cystoscopy) reported lower anxiety. The invasive nature of the procedure was mentioned by several patients; some commented that this was not an issue for them, while others found it embarrassing, particularly where the procedure was conducted by female healthcare professionals. While one suggested this was due to his older age, another explained how he accepted that getting older meant invasive procedures were more likely (Table 3).

Table 3 Acceptability of invasive urodynamics in primary care

Communication

A key factor in patient acceptability was the extent to which nurses explained the test, supported patients with information provision in advance and through the procedure and made them feel at ease. Patients reported they had been given the right level of information, so understood the purpose of the test, and that the nurses made the procedure as comfortable as possible, which reduced their anxiety. The ‘respectful’ and ‘professional’ manner of nurses in discussing and conducting urodynamics also helped to reduce patient embarrassment.

Preference for primary care

Undergoing the urodynamic test in primary rather than secondary care was viewed positively by patients, mainly due to convenience (e.g. reduced waiting and travel time and ease of parking) and familiarity with surgery staff. Several patients explained they had ‘full confidence’ in their GP practice and felt relaxed about visiting the surgery, while they would be more apprehensive if they had to attend hospital for the same procedure (Table 4). Some suggested that they would not have agreed to undergo urodynamics if the test had been conducted in hospital.

Table 4 Acceptability of invasive urodynamics in primary care

Feasibility of invasive urodynamics in primary care

Training and support

Urodynamic nurses reported that facilitating urodynamics in primary care was generally a positive experience. Most had not independently performed invasive urodynamics before receiving training for the PriMUS study and were apprehensive about conducting the procedure in a community setting, but all felt their confidence grew as they gained experience. They valued the initial training and ongoing support provided by the study team, particularly regular teleconferences with peers and access to ad-hoc telephone advice.

Logistical issues

Several logistical issues related to performing urodynamics in primary care were identified. Facilities at GP practices varied, and the procedure was sometimes carried out in unsuitable rooms, for example with a carpeted floor that was difficult to clean, insufficient space or difficulty accessing a sluice. Remote working meant nurses had to transport heavy equipment and sometimes experienced internet connectivity issues, which had led to clinic cancellations.

Difficulties receiving and using results

GPs highlighted problems with receiving and utilising urodynamic results in the initial stages of the study. Study-specific quality assurance procedures meant GP summaries took longer to be returned than expected, and where concurrent diagnoses were identified, GPs were unsure which to treat first. It was suggested this limited the potential benefit of the study to some patients (Table 5). As GP interviews were conducted in the pilot phase of the PriMUS study, their feedback enabled changes to be made to site training and the process of obtaining results.

Table 5 Feasibility of invasive urodynamics in primary care

Recruiting to a urodynamic study

Importance of proactive recruitment

Main study recruitment was opportunistic or via primary care database searches, with most GP practices using a combination of these approaches. Healthcare professionals emphasised the importance of having a recruitment lead at each practice, to ensure database searches were carried out regularly and to remind others to recruit opportunistically. Maintaining telephone contact with patients invited to take part was highlighted as particularly effective in improving study recruitment and retention.

Reasons for participation and non-participation

When explaining the study to patients, clinicians emphasised they would have quicker access to a comprehensive diagnostic test not normally available in primary care, that could help in the diagnosis and treatment of their LUTS. Accordingly, most patients identified this as a key factor in their decision to take part. Another common reason for participation was the altruistic opportunity to contribute to research with the potential to improve medical practice and benefit others in the future. Some participants specifically desired to raise the profile of LUTS in men. Others wanted to participate to help their own GP surgery, particularly where they had built up a good relationship with their GP. Conversely, one patient who declined to take part in the main study explained he was not familiar with any of the GPs at his surgery. For patients who opted not to take part in the study, this was mainly because they did not want to have an invasive test. Those who participated appreciated that the research could be carried out at a local GP surgery, while those who declined generally mistakenly believed they would have to attend hospital (Table 6).

Table 6 Recruiting to a urodynamic study

To improve study recruitment, patients suggested clinicians should emphasise that participants would gain prompt access to a thorough assessment of their symptoms without needing to go to hospital. Additional reassurance about the urodynamic test was recommended; for example, explaining that most patients who experience the test find it acceptable, or giving a detailed timeline of the procedure to show that discomfort associated with catheter insertion is short-lived. Other suggestions included advertising the research more widely, and particularly having the study recommended by a familiar GP. Patients believed those who were uncomfortable with the thought of the urodynamic test would not take part in any instance.

Discussion

To the best of our knowledge, this is the first study to explore the feasibility and acceptability of invasive urodynamics in primary care, and the first qualitative study of urodynamics to include the perspectives of primary healthcare professionals. Overall, patients found the urodynamic test acceptable; a key factor in this was the extent to which nurses made them feel well prepared and at ease, highlighting the importance of good communication and the patient-clinician relationship. Facilitating urodynamics in a primary care setting benefitted patients, who valued the convenience and familiarity of their GP practice. Urodynamic nurses also found this to be a positive experience, despite the logistical issues associated with remote working, and felt well supported by the study team. However, initial issues with receiving and utilising the results of urodynamic testing may have limited the potential benefit of the procedure to some patients.

Approaches found to be effective in recruiting patients to the urodynamic study included having a recruitment lead at each GP practice, maintaining telephone contact with potential participants and emphasising to patients that taking part would give them quicker access to a thorough diagnostic test. Patients’ relationship with their GP was an important influence on study recruitment; performing invasive urodynamics in primary rather than secondary care was also a key factor in encouraging participation. Patients suggested additional reassurance about the procedure would be helpful, particularly for those unsure about taking part.

The finding that invasive urodynamics is generally acceptable to patients supports quantitative studies [13, 14], which similarly report that most find the procedure as or better than expected. As found in previous qualitative research [8, 9], the interpersonal skills of nurses performing urodynamics, along with good explanation of the procedure, was key to patient acceptability. Building on previous work [8], which found that attending hospital to undergo urodynamics caused anxiety for older patients, we found interview participants preferred accessing the procedure in primary care. Findings also add to currently limited research on the effect of clinician-patient relationships on trial recruitment; as found in questionnaire studies [15, 16], patients’ familiarity with their GP appeared to influence their decision to participate.

This study provides an in-depth exploration of an under-researched area, adding new insights into patients’ acceptance of an invasive procedure in primary care. A key strength is our large and diverse sample, including the perspectives of primary healthcare professionals which have not previously been explored. Although we interviewed men across several geographical areas and of a wide range of ages, most were aged over 50. Therefore, findings may not be generalisable to younger men, who may experience urodynamic testing differently [17, 18]. Furthermore, we only interviewed three men who declined to take part in the urodynamic study due to difficulties recruiting participants from this group, so were unable to explore reasons for non-participation in detail. Some interviews were brief, dependent on the extent of participants’ involvement in the main PriMUS study; however, the research aims were highly focused and specific, enabling full examination of the research issue. Although our overall sample size is comparable to that obtained in similar qualitative studies (e.g. UPSTREAM [9]), a larger quantitative study based on this exploratory work would be useful to confirm findings. All interviewers were female, and none were qualified healthcare professionals, which may have affected the extent to which male patients were willing to discuss their experiences of urodynamic testing. However, interview participants appeared comfortable in disclosing detailed information about their experiences and feelings.

Study findings indicate several recommendations for future research and practice. Facilitating study procedures where possible in local primary care settings can result in increased participation rates and reduced anxiety for patients, particularly where the invitation to participate is from a familiar GP. More widely, conducting invasive urodynamics in primary care may encourage greater uptake of the procedure and reduce the need for hospital referral. Findings may also apply more widely to conducting urodynamics in community settings. If implementing this in practice, it would be important to ensure nurses performing urodynamics are comprehensively trained and have access to specialist advice. Having an experienced clinician to interpret urodynamic results and provide a clear, timely summary for GPs and patients is vital to ensure patients benefit fully from the invasive test. Dedicated space for urodynamics in a community hub setting would help overcome the logistical difficulties of transporting equipment and working in clinics with varying facilities. Due to the invasive nature of the urodynamic test, patients may benefit from additional reassurance (e.g. via telephone) prior to the procedure.

Future research could further explore the effects on study recruitment of performing research procedures in primary vs. secondary care settings and of patients being invited to participate by their own GP vs. other healthcare professionals. Greater exploration of the perspectives of patients who decline invasive urodynamics would provide a more rounded insight into acceptability of the procedure. Including the views of urodynamic nurses with a greater range of experience would also allow more in-depth exploration of the feasibility of conducting urodynamics in primary care.

Conclusions

Findings indicate that conducting invasive urodynamics in primary care is feasible and acceptable to patients and healthcare professionals, and may encourage uptake of the procedure. Facilitating study procedures in familiar primary care settings can also impact positively on research recruitment. Expertise to help interpret urodynamic results, together with a support network for urodynamic nurses working remotely, is essential to ensure the potential benefits of the test are realised.

Availability of data and materials

The datasets generated and analysed during the current study are not publicly available and cannot be shared as individual privacy could be compromised if full interview transcripts were released.

Abbreviations

LUTS:

Lower urinary tract symptoms

GP:

General practitioner

NIHR:

National Institute for Health Research

HTA:

Health Technology Assessment

PriMUS:

Primary care management of lower urinary tract symptoms in men: development and validation of a diagnostic and clinical decision support tool

NICE:

National Institute for Health and Care Excellence

MSP:

Patients who participated in the main PriMUS study

IP:

Patients who participated in the interview element of the PriMUS study only

UN:

Urodynamic nurse

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Acknowledgements

In addition to the authors, the PriMUS team comprises Ridhi Agarwal, Jon Deeks, Calie Dyer, Joanne Euden, Lucy Marsh and Rob Pickard. We would like to acknowledge the contribution of Malcolm Gristwood as a public and patient involvement representative on the Study Management Group. We would like to thank the research nurses for their support during the study: Debra Barnett, Laura Bevan, Jane Davies, Alison Edwards, Alexandra Hall, Gareth Kennard-Holden, Lisa Mellish, Peter Murphy, Lucy Shipp, Joanne Sullivan, Joanne Thompson and Dianne Wake. We also thank all the patients and healthcare professionals who gave up their time to participate in interviews.

The Centre for Trials Research receives funding from Health and Care Research Wales and Cancer Research UK.

AJA is supported by the National Institute for Health Research (NIHR) Newcastle In Vitro Diagnostics Co-operative. The views expressed are those of the authors and not necessarily those of the NIHR or the Department of Health and Social Care.

Funding

The study is funded by the National Institute for Health Research (NIHR) HTA programme (project reference 15-40-05). The NIHR has had no role in the design of the study, collection, analysis and interpretation of data or in writing the manuscript.

Author information

Affiliations

Authors

Contributions

AE and CH led the development of the research question, study design, obtaining the funding, and implementation of the study protocol, along with AJA, AB, HA, MD, MJD, KH, NJW, TS, YT, and ETJ. BP is the PriMUS Study Manager and ETJ the Senior Study Manager who coordinated the operational delivery of the study protocol and recruitment. NJW led the development of the qualitative component, providing advice and contributing to data analysis. SM contributed to the design of the qualitative component and led qualitative data collection and analysis. EC, RH and FM contributed to the design of interview materials and to qualitative data collection. RW provided PPI insight, contributing to the design of participant-facing materials. SC provided research nurse insight and support. The authors listed provided critical review and final approval of the manuscript.

Corresponding author

Correspondence to Sarah Milosevic.

Ethics declarations

Ethics approval and consent to participate

The study was approved by Wales Research Ethics Committee 6. Informed consent was obtained from all participants.

Consent for publication

Not applicable.

Competing interests

Outside of the submitted work, CH reports speaker fees from Astellas Medtronic Allergan, an educational grant from Medtronic and consultant fees from Teleflex Medical. KH is a member of the NIHR HTA General Committee, the HTA Funding Committee Policy Group and the Research Professors Panel. MJD reports personal fees from Astellas and Ferring.

One of the index tests used in the main PriMUS study, Flowtaker, was developed by a team from the Newcastle upon Tyne Hospitals NHS Foundation Trust (NuTH) and Newcastle University, including AB and MD. In 2014, the device was licenced to MMS (Enschede, The Netherlands) and royalties from the sale of the device were paid to NuTH (not to the individuals). MMS was subsequently acquired by Laborie who removed Flowtaker from the market in January 2018. AB and MD have a patent EP2741671A1 with royalties paid to the Newcastle upon Tyne Hospitals NHS Foundation Trust.

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Milosevic, S., Joseph-Williams, N., Pell, B. et al. Conducting invasive urodynamics in primary care: qualitative interview study examining experiences of patients and healthcare professionals. Diagn Progn Res 5, 10 (2021). https://doi.org/10.1186/s41512-021-00100-y

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Keywords

  • Urodynamics
  • Primary care
  • Lower urinary tract symptoms
  • Qualitative research