Tag: Prostate cancer

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Article of the week: Does the introduction of prostate multi-parametric MRI into the AS protocol for localized PCa improve patient re-classiﬁcation?

November 14, 2018/2 Comments/by admin Z.9

Every week, the Editor-in-Chief selects an Article of the Week from the current issue of BJUI. The abstract is reproduced below and you can click on the button to read the full article, which is freely available to all readers for at least 30 days from the time of this post.

If you only have time to read one article this week, it should be this one.

Does the introduction of prostate multiparametric magnetic resonance imaging into the active surveillance protocol for localized prostate cancer improve patient re-classification?

Richard J. Bryant*† , Bob Yang* , Yiannis Philippou*, Karla Lam*, Maureen Obiakor*, Jennifer Ayers*, Virginia Chiocchia†‡, Fergus Gleeson^§, Ruth MacPherson^§, Clare Verrill^†¶, Prasanna Sooriakumaran†**, Freddie C. Hamdy*† and Simon F. Brewster*

*Department of Urology, Oxford University Hospitals NHS Foundation Trust, Oxford, UK, †Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK, ‡National Perinatal Epidemiology Unit, Nuffield Department of Population Health, University of Oxford, Oxford, UK, ^§Department of Radiology, Oxford University Hospitals NHS Foundation Trust, Oxford, UK, ^¶Oxford NIHR Biomedical Research Centre, University of Oxford, Oxford, UK, and **Department of Uro-Oncology, University College London Hospital NHS Foundation Trust, London, UK

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Abstract

Objectives

To determine whether replacement of protocol‐driven repeat prostate biopsy (PB) with multiparametric magnetic resonance imaging (mpMRI) ± repeat targeted prostate biopsy (TB) when evaluating men on active surveillance (AS) for low‐volume, low‐ to intermediate‐risk prostate cancer (PCa) altered the likelihood of or time to treatment, or reduced the number of repeat biopsies required to trigger treatment.

Patients and Methods

A total of 445 patients underwent AS in the period 2010–2016 at our institution, with a median (interquartile range [IQR]) follow‐up of 2.4 (1.2–3.7) years. Up to 2014, patients followed a ‘pre‐2014’ AS protocol, which incorporated PB, and subsequently, according to the 2014 National Institute for Health and Care Excellence (NICE) guidelines, patients followed a ‘2014–present’ AS protocol that included mpMRI. We identified four groups of patients within the cohort: ‘no mpMRI and no PB’; ‘PB alone’; ‘mpMRI ± TB’; and ‘PB and mpMRI ± TB’. Kaplan–Meier plots and log‐rank tests were used to compare groups.

Results

Of 445 patients, 132 (30%) discontinued AS and underwent treatment intervention, with a median (IQR) time to treatment of 1.55 (0.71–2.4) years. The commonest trigger for treatment was PCa upgrading after mpMRI and TB (43/132 patients, 29%). No significant difference was observed in the time at which patients receiving a PB alone or receiving mpMRI ± TB discontinued AS to undergo treatment (median 1.9 vs 1.33 years; P = 0.747). Considering only those patients who underwent repeat biopsy, a greater proportion of patients receiving TB after mpMRI discontinued AS compared with those receiving PB alone (29/66 [44%] vs 32/87 [37%]; P = 0.003). On average, a single set of repeat biopsies was needed to trigger treatment regardless of whether this was a PB or TB.

Conclusion

Replacing a systematic PB with mpMRI ±TB as part of an AS protocol increased the likelihood of re‐classifying patients on AS and identifying men with clinically significant disease requiring treatment. mpMRI ±TB as part of AS thereby represents a significant advance in the oncological safety of the AS protocol.

Editorial: Multi-parametric MRI: an important tool to improve risk stratiﬁcation for active surveillance in prostate cancer

November 14, 2018/by Chandrasekar Thenappan

Multiparametric MRI (mpMRI) has become an important adjunct in the management of localized prostate cancer (PCa), particularly in the active surveillance (AS) setting. Current guideline recommendations [1,2] have recommended incorporation of mpMRI into AS protocols to improve patient stratification and reclassification.

Bryant et al. [3], based on updated National Institute of Health and Care Excellence (NICE) guidelines [1], report on the effect of mpMRI incorporation into their institution’s AS protocols, specifically focusing on the time to treatment and number of biopsies required to trigger treatment. In 2014, they replaced protocol‐driven biannual prostate biopsies (PBs) with mpMRI ± cognitive targeted biopsy and systematic biopsy (TB). With a median follow‐up of 2.4 years, they found that more men who underwent TB progressed to treatment than men who underwent PB alone (44% vs 37%; P = 0.003). The median number of biopsies (beyond the original diagnostic biopsy) required to trigger intervention was 1.55. Based on these results, the authors conclude that mpMRI‐driven TB increases reclassification compared with protocol‐driven PB.

This is consistent with increasing evidence that mpMRI enhances, and sometimes, exceeds detection of clinically significant PCa over TRUS‐guided prostate biopsy alone. The PROMIS study [4], a multicentre paired validation study that compared mpMRI to TRUS‐guided biopsy in the diagnostic setting, found that mpMRI had better sensitivity (93% vs 43%; P < 0.001) and negative predictive value (89% vs 74%; P < 0.001) than TRUS‐guided biopsy in detecting clinically significant cancer (defined as Gleason grade ≥4 + 3). While the concerns about foregoing a systematic biopsy at the time of targeted biopsy in that study were warranted, there was consensus that prebiopsy mpMRI increased the yield for clinically significant PCa.

In the AS setting, unfortunately, randomized data are lacking; however, retrospective series and systematic reviews provide some guidance. In a systematic review, Schoots et al. [5] found that a positive mpMRI in the AS setting was associated with a higher risk of upgrading at the time of radical prostatectomy and a higher risk of reclassification at the time of confirmatory biopsy. Yet, a negative mpMRI did not preclude reclassification and upgrading, indicating the continued need for systematic biopsy. Recabal et al. [6] confirmed these conclusions in their retrospective assessment of an institutionally maintained prospective dataset. While MRI‐targeted biopsies detected higher grade cancer in 23% of men, they missed higher grade clinically significant cancers in 17%, 12% and 10% of patients with mpMRI scores of 3, 4 and 5, respectively. This suggests that both targeted and systematic biopsy should be used for the optimal detection of clinically significant PCa in men on AS.

The present study by Bryant et al. [3] reaffirms the value of mpMRI in the AS paradigm. Yet, some concerns about their study cohort and methodology should be noted. First, as the authors clearly note as a limitation, despite completing a targeted and systematic biopsy, all the samples were sent as a single specimen, precluding the ability to distinguish between targeted biopsy and systematic biopsy cores. As the absolute difference in the rate of progression to treatment between the PB and TB arms was only 7%, it is uncertain how much of that was attributable to the addition of targeted biopsy alone.

Additionally, in a closer analysis of their study population, it should be noted that 35% of the patients had Gleason Grade Group 2 disease or higher at the time of inclusion, representing a higher‐risk AS patient population than guideline recommendations. This may account for the higher rate of progression to treatment in this study cohort independent of grade progression – 24% of patients progressed to treatment based on PSA progression alone and an additional 10% were based on mpMRI findings alone.

Lastly, the median number of biopsies required to trigger intervention was 1.55 and, for the majority of patients, this was just one additional biopsy beyond the original diagnostic biopsy. Guideline recommendations indicate the importance of a confirmatory biopsy to exclude Gleason sampling error [2]; however, by definition, many of these patients were essentially upstaged or redirected to active treatment after a confirmatory biopsy. With 59% of the entire AS population never receiving a confirmatory biopsy beyond their original diagnostic biopsy and many progressing to treatment after a confirmatory biopsy, this study population may not reflect a well‐selected low‐risk PCa patient population for AS.

Despite these limitations, the work by Bryant et al. [3] adds to the growing body of evidence supporting the use of mpMRI‐targeted biopsies in addition to systematic biopsy to more accurately risk stratify men for AS, particularly at the time of diagnosis. It remains unknown how we can use mpMRI to individually tailor surveillance strategies or if mpMRI may ultimately replace surveillance biopsies over time.

References

Graham J, Kirkbride P, Cann K, Hasler E, Prettyjohns M. Prostate cancer: summary of updated NICE guidance. BMJ (Clinical research ed.). 2014; 348: f7524
Mottet N, Bellmunt J, Bolla M et al. EAU‐ESTRO‐SIOG Guidelines on Prostate Cancer. Part 1: screening, diagnosis, and local treatment with curative intent. Eur Urol 2017; 71: 618–29
Bryant RJ, Yang B. Does the introduction of prostate multiparametric magnetic resonance imaging into the active surveillance protocol for localized prostate cancer improve patient re‐classification? BJU Int 2018; 122: 794–800
Ahmed HU, El‐Shater Bosaily A, Brown LC et al. Diagnostic accuracy of multi‐parametric MRI and TRUS biopsy in prostate cancer (PROMIS): a paired validating confirmatory study. Lancet 2017; 389: 815–22
Schoots IG, Petrides N, Giganti F et al. Magnetic resonance imaging in active surveillance of prostate cancer: a systematic review. Eur Urol 2015; 67: 627–36
Recabal P, Assel M, Sjoberg DD et al. The efficacy of multiparametric magnetic resonance imaging and magnetic resonance imaging targeted biopsy in risk classification for patients with prostate cancer on active surveillance. J Urol 2016; 196: 374–81

Article of the week: Urinary, bowel and sexual health in older men from Northern Ireland

November 7, 2018/by Admin

In addition to the article itself, there is an accompanying editorial written by a prominent member of the urological community. This blog is intended to provoke comment and discussion and we invite you to use the comment tools at the bottom of each post to join the conversation. There is also a video produced by the authors, and a podcast created by our Resident podcasters Giulia Lane and Maria Uloko.

If you only have time to read one article this week, it should be this one.

Urinary, bowel and sexual health in older men from Northern Ireland

David W. Donnelly*, Conan Donnelly†, Therese Kearney*, David Weller‡, Linda Sharp§, Amy Downing¶, Sarah Wilding¶, PennyWright¶, Paul Kind**, James W.F. Catto††, William R. Cross‡‡, Malcolm D. Mason§§, Eilis McCaughan^¶¶, Richard Wagland***, Eila Watson†††, Rebecca Mottram¶, Majorie Allen^¶, Hugh Butcher‡‡‡, Luke Hounsome^§§§, Peter Selby^¶, Dyfed Huws^¶¶¶, David H. Brewster****, EmmaMcNair****, Carol Rivas††††, Johana Nayoan***, Mike Horton‡‡‡‡, Lauren Matheson†††, Adam W. Glaser^¶ and Anna Gavin*

*Northern Ireland Cancer Registry, Centre for Public Health, Queen’s University Belfast, Belfast, UK, †National Cancer Registry Ireland, Cork, Ireland, ‡Centre for Population Health Sciences, University of Edinburgh, Edinburgh, UK, ^§Institute of Health and Society, Newcastle University, Newcastle upon Tyne, UK, ^¶Leeds Institute of Cancer and Pathology/Leeds Institute of Data Analytics, University of Leeds, Leeds, UK, **Institute of Health Sciences, University of Leeds, Leeds, UK, ††Academic Urology Unit, University of Sheffield, Sheffield, UK, ‡‡Department of Urology, St James’s University Hospital, Leeds, UK, ^§§Division of Cancer and Genetics, School of Medicine, Velindre Hospital, Cardiff University, Cardiff, UK, ^¶¶Institute of Nursing and Health Research, Ulster University, Coleraine, UK, ***Faculty of Health Sciences, University of Southampton, Southampton, UK, †††Faculty of Health and Life Sciences, Oxford Brookes University, Oxford, UK, ‡‡‡Yorkshire Cancer Patient Forum, c/o Strategic Clinical Network and Senate, Yorkshire and The Humber, Harrogate, UK, ^§§§National Cancer Registration and Analysis Service, Public Health England, Bristol, UK, ^¶¶¶Welsh Cancer Intelligence and Surveillance Unit, Cardiff, UK, ****Information Services Division, NHS National Services Scotland, Edinburgh, UK, ††††Department of Social Science, UCL Institute of Education, University College London, London, UK, and ‡‡‡‡Psychometric Laboratory for Health Sciences, Academic Department of Rehabilitation Medicine, University of Leeds, Leeds, UK. Check out the latest carbofix reviews.

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Abstract

Objectives

To provide data on the prevalence of urinary, bowel and sexual dysfunction in Northern Ireland (NI), to act as a baseline for studies of prostate cancer outcomes and to aid service provision within the general population.

Subjects and Methods

A cross‐sectional postal survey of 10 000 men aged ≥40 years in NI was conducted and age‐matched to the distribution of men living with prostate cancer. The EuroQoL five Dimensions five Levels (EQ‐5D‐5L) and 26‐item Expanded Prostate Cancer Composite (EPIC‐26) instruments were used to enable comparisons with prostate cancer outcome studies. Whilst representative of the prostate cancer survivor population, the age‐distribution of the sample differs from the general population, thus data were generalised to the NI population by excluding those aged 40–59 years and applying survey weights. Results are presented as proportions reporting problems along with mean composite scores, with differences by respondent characteristics assessed using chi‐squared tests, analysis of variance, and multivariable log‐linear regression. Prevent most unhealthy conditions after reading these biofit reviews.

Results

Amongst men aged ≥60 years, 32.8% reported sexual dysfunction, 9.3% urinary dysfunction, and 6.5% bowel dysfunction. In all, 38.1% reported at least one problem and 2.1% all three. Worse outcome was associated with increasing number of long‐term conditions, low physical activity, and higher body mass index (BMI). Urinary incontinence, urinary irritation/obstruction, and sexual dysfunction increased with age; whilst urinary incontinence, bowel, and sexual dysfunction were more common among the unemployed.

Conclusion

These data provide an insight into sensitive issues seldom reported by elderly men, which result in poor general health, but could be addressed given adequate service provision. The relationship between these problems, raised BMI and low physical activity offers the prospect of additional health gain by addressing public health issues such as obesity. The results provide essential contemporary population data against which outcomes for those living with prostate cancer can be compared. They will facilitate greater understanding of the true impact of specific treatments such as surgical interventions, pelvic radiation or androgen‐deprivation therapy.

Article of the week: RP and the effect of close surgical margins: results from the SEARCH database

October 24, 2018/by Admin

If you only have time to read one article this week, it should be this one.

Radical prostatectomy and the effect of close surgical margins: results from the Shared Equal Access Regional Cancer Hospital (SEARCH) database

Christine Herforth*, Sean P. Stroup*†‡, Zinan Chen^§¶, Lauren E. Howard^§¶, Stephen J. Freedland^¶†††, Daniel M. Moreira***, Martha K. Terris^§¶, William J. Aronson^**††, Matthew R. Cooperberg^‡‡§§, Christopher L. Amling^¶¶ and Christopher J. Kane^†‡‡‡

^*Department of Urology, Naval Medical Center San Diego, ^†Department of Urology, University of California, San Diego, ^‡Section of Urologic Oncology, Moores UCSD Cancer Center, ^‡‡‡Veterans Affairs San Diego Medical Center, La Jolla, ^**University of California, ^††Veteran Affairs Los Angeles, ^†††Cedars-Sinai Medical Center, Los Angeles, ^‡‡University of California, ^§§Veterans Affairs San Francisco Medical Center, San Francisco, CA, ^§Duke University, ^¶Veterans Affairs Durham Medical Center, Durham, NC, ^¶¶Oregon Health and Science University, Portland, OR and ^***The Mayo Clinic, Rochester, MN, USA

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Abstract

Objective

To evaluate biochemical recurrence (BCR) patterns amongst men undergoing radical prostatectomy (RP) with specimens having negative (NSM), positive (PSM), and close surgical margins (CSM) from the Shared Equal Access Regional Cancer Hospital (SEARCH) cohort, as PSM after RP are a significant predictor of biochemical failure and possible disease progression, with CSM representing a diagnostic challenge for surgeons.

Patients and Methods

Men undergoing RP between 1988 and 2015 with known final pathological margin status were evaluated. The cohort was divided into three groups based on margin status; NSM, PSM, and CSM. CSM were defined by distance of tumour ≤1 mm from the surgical margin. BCR was defined as a prostate‐specific antigen (PSA) level of >0.2 ng/mL, two values at 0.2 ng/mL, or secondary treatment for an elevated PSA level. Predictors of BCR, metastases, and mortality were analysed using Cox proportional hazard models.

Results

Of 5515 men in the SEARCH database, 4337 (79%) men met criteria for inclusion in the analysis. Of these, 2063 (48%) had NSM, 1902 (44%) had PSM, and 372 (8%) had CSM. On multivariable analysis, relative to NSM, men with CSM had a higher risk of BCR (hazard ratio [HR] 1.51, 95% confidence interval [CI] 1.25–1.82; P < 0.001) but a decreased risk of BCR when compared to those men with PSM (HR 2.09, 95% CI 1.86–2.36; P < 0.001). Metastases, prostate cancer‐specific mortality and all‐cause mortality did not differ based on margin status alone.

Conclusions

Management of men with CSM is a diagnostic challenge, with a disease course that is not entirely benign. The evaluation of other known risk factors probably provides greater prognostic value for these men and may ultimately better select those who may benefit from adjuvant therapy.

Highlights from the Irish Society of Urology Annual Meeting 2018

October 3, 2018/by Clare O Connell

Dr Kent T. Perry Jr. delivers a lecture on minimally invasive kidney surgery

The Irish Society of Urology annual meeting has a strong tradition of attracting world class guest speakers, and this year was no different. We were joined by Dr Kent T. Perry Jr. (Co-Director of the Minimally Invasive Surgery Program & Associated Professor at Northwestern University Chicago), Professor Hendrik Van Poppel (Adj. Secretary General of EAU for Education), Mr Jeremy Ockrim (Honorary Lecturer and Consultant Urologist at University College London), Mr Kieran O’Flynn (Immediate BAUS past president and Consultant Urologist at Salford Royal Foundation), and Dr Matthias Hofer (Assistant Professor at Dept. Urology, Northwestern University Chicago). The excellent programme of guest speakers started on Friday afternoon with Dr Matthias Hofer’s talk on urethral reconstruction-a ‘no frills’ overview of a complex topic which surely inspired several trainees in the room to consider a career in Reconstructive Urology.

The historic Strokestown House, Co. Roscommon

The Saturday formal dinner was held in the historic Strokestown House in Roscommon-the former home of the Packenham Mahon family, built on the site of a 16^th Century castle, which was home to the O’Conor-Roe Gaelic Chieftains. It is now the site of the National Famine Museum. We were treated to a fascinating tour of the house on arrival, before enjoying a wonderful dinner, and some fantastic harp-playing. The presidential chain was conferred to the incoming president, Mr Paul Sweeney of The Mercy University Hospital in Cork, and the society are already looking ahead to exciting things during his tenure as president.

About the authors:

Dr Clare O’Connell is a first year Urology SpR in the Department of Urology & Transplant in Beaumont Hospital, Dublin (@oconnellclare).

Dr Sorcha O’Meara is a second year Urology SHO in the Department of Urology in The Mater Misericordiae University Hospital, Dublin (@sorchaOm).

Article of the week: Effectiveness of a longer urethral stump to prevent urinary incontinence after radical prostatectomy

September 26, 2018/1 Comment/by Admin

Every Week, the Editor-in-Chief selects an Article of the Week from the current issue of BJUI. The abstract is reproduced below and you can click on the button to read the full article, which is freely available to all readers for at least 30 days from the time of this post.

Finally, the third post under the Article of the Week heading on the homepage will consist of additional material or media. This week we feature both a video and a podcast discussing the paper.

If you only have time to read one article this week, it should be this one.

Investigating the mechanism underlying urinary continence recovery after radical prostatectomy: effectiveness of a longer urethral stump to prevent urinary incontinence

Yoshifumi Kadono*, Takahiro Nohara*, Shohei Kawaguchi*, Renato Naito*, Satoko Urata*, Kazufumi Nakashima*, Masashi Iijima*, Kazuyoshi Shigehara*, Kouji Izumi*, Toshifumi Gabata† and Atsushi Mizokami*

*Department of Integrative Cancer Therapy and Urology, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan; †Department of Radiology, Kanazawa University School of Medicine, 13‐1 Takara‐machi, Kanazawa, Ishikawa 920‐8640, Japan

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Abstract

Objective

To assess the chronological changes in urinary incontinence and urethral function before and after radical prostatectomy (RP), and to compare the findings of pelvic magnetic resonance imaging (MRI) before and after RP to evaluate the anatomical changes.

Patients and Methods

In total, 185 patients were evaluated with regard to the position of the distal end of the membranous urethra (DMU) on a mid‐sagittal MRI slice and urethral sphincter function using the urethral pressure profilometry. The patients also underwent an abdominal leak point pressure test before RP and at 10 days and 12 months after RP. The results were then compared with the chronological changes in urinary incontinence.

Fig. 1 Intraoperative view of the apex of the prostate transection line between the urethra and prostate at (A) the normal and (B) long urethral stump positions.

Results

The MRI results showed that the DMU shifted proximally to an average distance of 4 mm at 10 days after RP and returned to the preoperative position at 12 months after RP. Urethral sphincter function also worsened 10 days after RP, with recovery after 12 months. The residual length of the urethral stump and urinary incontinence were significantly associated with the migration length of the DMU at 10 days after RP. The residual length of the urethral stump was a significant predictor of urinary incontinence after RP.

Conclusion

This is the first study to elucidate that the slight vertical repositioning of the membranous urethra after RP causes chronological changes in urinary incontinence. A long urethral residual stump reduces urinary incontinence after RP.

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Article of the week: External validation of the prostascore model in metastatic hormone‐sensitive PCa patients recruited to the CHAARTED study

September 19, 2018/by Admin

If you only have time to read one article this week, it should be this one.

External validation of the prostascore model in patients with metastatic hormone‐sensitive prostate cancer recruited to the CHAARTED study

Omar Abdel‐Rahman* and Winson Y. Cheung†

*Clinical Oncology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt; †Department of Oncology, Tom Baker Cancer Centre, University of Calgary, Calgary, AB, Canada

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Abstract

Objective

To externally validate ‘prostascore’ in patients with metastatic hormone‐sensitive prostate cancer recruited to the phase III CHAARTED study.

Methods

We conducted a retrospective analysis of the prospectively collected data from patients with metastatic hormone‐sensitive prostate cancer in the CHAARTED study, a phase III multicentre study conducted between 2006 and 2014. The main outcome of the present analysis was overall survival, assessed using Kaplan–Meier analysis or log‐rank testing, in the whole cohort according to different prostascores. In addition, patients with different scores were compared according to treatment arm.

Fig 1. Kaplan-Meier curves for (A) overall survival according to Prostascore.

Results

A total of 702 cases had complete baseline data, allowing calculation of prostascores and inclusion in the present analysis. Overall survival was assessed according to prostascores in the entire cohort and the P value for overall survival trend was significant (P < 0.001). Likewise, progression‐free survival was assessed according to prostascores in the entire cohort and the P value for progression‐free survival trend was also significant (P < 0.001). Overall survival comparisons according to treatment arm were evaluated among different prostascores. Notably, the P value for overall survival difference was not significant for a prostascore = 2 (P = 0.702), but was significant for scores of 3, 4 and 5 (P < 0.05). The cause‐specific hazard ratio for cancer‐specific survival (adjusted for treatment arm used) was also evaluated. The P value for pairwise comparisons between different scores was significant (P < 0.01) except for the comparison between scores 4 and 5.

Conclusion

The present study further confirms the role of prostascore in predicting the outcomes of patients with metastatic hormone‐sensitive prostate cancer and also highlights its potential role in therapeutic decision‐making.

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Article of the Week: Analysis of hydrogel spacer for PCa RT

September 5, 2018/by admin Z.9

Finally, the third post under the Article of the Week heading on the homepage will consist of additional material or media. This week we feature a video discussing the paper.

If you only have time to read one article this week, it should be this one.

Prospective analysis of hydrogel spacer for patients with prostate cancer undergoing radiotherapy

Michael Chao*†, Huong Ho† , Yee Chan*‡, Alwin Tan§, Trung Pham¶, Damien Bolton*‡, Andrew Troy*, Catherine Temelcos**, Shomik Sengupta*†† , Kevin McMillan‡, Chee Wee Cham§, Madalena Liu‡, Wei Ding†, Brindha Subramanian†, Jason Wasiak*‡‡, Daryl Lim Joon*†, Sandra Spencer† and Nathan Lawrentschuk*

*The Austin Hospital, Heidelberg, Vic., Australia, †Genesis Cancer Care Victoria, Ringwood East, Vic., Australia, ‡Ringwood Private Hospital, Ringwood East, Vic., Australia, §The Bays Hospital, Mornington, Vic., Australia, ¶ The Valley Private Hospital, Mulgrave, Vic., Australia, **St Vincent’s Hospital, Fitzroy, Vic., Australia, ††Melbourne University; Eastern Health Clinical School, Monash University, Clayton, Vic., Australia, and ‡‡University of Melbourne, Melbourne, Vic., Australia

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Abstract

Objective

To report on the dosimetric benefits and late toxicity outcomes after injection of hydrogel spacer (HS) between the prostate and rectum for patients treated with prostate radiotherapy (RT).

Patients and Methods

In all, 76 patients with a clinical stage of T1–T3a prostate cancer underwent general anaesthesia for fiducial marker insertion plus injection of the HS into the perirectal space before intensity‐modulated RT (IMRT) or volumetric‐modulated arc RT (VMAT). HS safety, dosimetric benefits, and the immediate‐ to long‐term effects of gastrointestinal (GI) toxicity were assessed.

Results

There were no postoperative complications reported. The mean (range) prostate size was 66.0 (25.0–187.0) mm. Rectal dose volume parameters were observed and the volume of rectum receiving 70 Gy (rV₇₀), 75 Gy (rV₇₅) and 78 Gy (rV₇₈) was 7.8%, 3.6% and 0.4%, respectively. In all, 21% of patients (16/76) developed acute Grade 1 GI toxicities, but all were resolved completely by 3 months after treatment; whilst, 3% of patients (2/76) developed late Grade 1 GI toxicities. No patients had acute or late Grade ≥2 GI toxicities.

Conclusion

Injection of HS resulted in a reduction of irradiated rectal dose volumes along with minimal GI toxicities, irrespective of prostate size.

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Article of the Month: Retzius-sparing RARP using the Revo-i: results of the first human trial

August 29, 2018/by admin Z.9

Every Month, the Editor-in-Chief selects an Article of the Month from the current issue of BJUI. The abstract is reproduced below and you can click on the button to read the full article, which is freely available to all readers for at least 30 days from the time of this post.

In addition to the article itself, there is an accompanying editorial written by a prominent member of the urological community. This blog is intended to provoke comment and discussion and we invite you to use the comment tools at the bottom of each post to join the conversation.

If you only have time to read one article this week, it should be this one.

Retzius-sparing robot-assisted radical prostatectomy using the Revo-i robotic surgical system: surgical technique and results of the first human trial

Ki Don Chang*†, Ali Abdel Raheem*‡, Young Deuk Choi* , Byung Ha Chung* and Koon Ho Rha*

*Department of Urological Science Institute, Yonsei University College of Medicine, Seoul, †Department of Urology, Urological Science Institute, Yonsei Wonju University College of Medicine, Wonju, Korea, and ‡Department of Urology, Tanta University Medical School, Tanta, Egypt

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Abstract

Objective

To evaluate the safety and proficiency of the Revo‐i^® robotic platform (Meere Company Inc.) in the treatment of prostate cancer (PCa).

Patients and Methods

A prospective study was carried out on 17 patients with clinically localized PCa treated between 17 August 2016 and 23 February 2017 at our urology department using the Revo‐i. Patients underwent Retzius‐sparing robot‐assisted radical prostatectomy (RS‐RARP). The primary objective was to describe the RS‐RARP step‐by‐step surgical technique using the Revo‐i. In addition, the safety of the Revo‐i was assessed according to intra‐operative and the postoperative complications within 30 days of surgery. Early oncological outcomes were also assessed according to surgical margin status and biochemical recurrence (BCR). Continence was defined as use of no or only one pad. Surgeons’ satisfaction with the Revo‐i was assessed using the Likert scale.

Results

All surgeries were completed successfully, with no conversion to open or laparoscopic surgery. The median patient age was 72 years. The median docking time, console time, urethrovesical anastomosis time and estimated blood loss were 8 min, 92 min, 26 min and 200 mL, respectively. One patient was transfused intra‐operatively as a result of blood loss of 1 500 mL. Postoperatively, two patients received blood transfusion, and there were no other serious/major complications. The median hospital stay was 4 days. At 3 months, four patients had positive surgical margins, one patient had BCR, and 15 patients were continent. Most of surgeons were satisfied with the Revo‐i performance.

Conclusions

The first human study for the treatment of patients with localized PCa using the Revo‐i robotic surgical system was carried out successfully. The peri‐operative, early oncological and continence outcomes are encouraging. Further prospective studies are warranted to support our preliminary results.

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Article of the Week: NICE Advice – Prolaris Gene Expression Assay

August 15, 2018/by admin Z.9

Every Week, the Editor-in-Chief selects an Article of the Week from the current issue of BJUI. The summary is reproduced below and you can click on the button to read the full article, which is freely available to all readers for at least 30 days from the time of this post.

If you only have time to read one article this week, it should be this one.

NICE Advice – Prolaris gene expression assay for assessing long‐term risk of prostate cancer progression

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