Advances in prostate cancer diagnosis and treatment Dr Nick Mehan - General Practice Clinical Sessions Podcast
Podcast: Primary Care Masterclass PodcastPublished On: Thu Sep 17 2026
Description: Host: Michelle Odayan (My Health Academy) Guest Expert: Dr. Nicholas Mehan (Urological Surgeon specializing in prostate cancer, robotic surgery, and laser ablation)Episode SummaryDr. Nicholas Mehan provides an overview of how prostate cancer care has evolved over the past two decades. The discussion covers the shift away from broad PSA screening toward targeted early detection, modern diagnostic tools (mpMRI and transperineal biopsy), updated Australian clinical guidelines (PCFA & RACGP Red Book), and harm-minimizing treatments like focal laser ablation and robotic surgery.Key Discussion Topics & HighlightsThe PSA Screening Dilemma & Historical ContextPre-PSA Era: Before blood testing in the 1990s, prostate cancer was typically detected at late, metastatic stages with high mortality.Overdiagnosis & Overtreatment: The introduction of PSA testing increased early detection but led to 20–40% overdiagnosis of indolent, low-risk cancers, subjecting many men to aggressive treatments that caused incontinence and erectile dysfunction.Guideline Re-evaluation: Confusion following the 2012 US Preventive Services Task Force (USPSTF) recommendation against PSA testing led to long-term trial analyses that confirmed the value of targeted early detection.Diagnostic Breakthroughs (The Past 10 Years)Multiparametric MRI (mpMRI): Used as a triage tool before biopsy. Federally funded in Australia since 2018, allowing ~50% of low-risk men to safely avoid biopsy altogether.Transperineal (TP) Biopsy: Replaced transrectal (TRUS) biopsies, reducing post-procedure sepsis risk from up to 2–5% down to ~1 in 1,000.Active Surveillance: Standard of care for low-risk (Grade Group 1) disease, with ~90% of eligible Australian men choosing monitoring over immediate surgery or radiation.Updated Clinical Guidelines (PCFA & RACGP 10th Edition Red Book)Risk-Based Approach: Recommends baseline PSA testing from age 45–49 for high-risk men (family history, BRCA2 gene mutation, Black ancestry).Routine Testing: Recommended every 2 years for well-informed men aged 50–69 (with re-testing triggered at PSA > 3.0).Digital Rectal Exam (DRE): No longer recommended for routine screening in asymptomatic men.Treatment Innovations & Harm MinimizationFocal Therapy (Organ Preservation): Targets the MRI-visible "index lesion" while preserving surrounding prostate tissue, resulting in 0% incontinence and low erectile dysfunction rates. Dr. Mehan highlights Nepean Hospital’s ProFocal laser ablation trial, which achieved an 84% cancer-free rate in treated areas.Robotic Surgery: Robotic-assisted radical prostatectomy reduces blood loss, complication rates, pain, and hospital stays compared to open surgery.Radiotherapy & Hydrogel Spacers: Stereotactic body radiation (SBRT over 5 days) combined with hydrogel spacers (e.g., SpaceOAR) protects the rectum from collateral radiation damage.Advanced Disease: PSMA PET scans enable precise staging and recurrence tracking, while novel anti-androgens significantly extend survival in castrate-resistant disease.Key Audience Q&ADoes a prostate biopsy cause cancer to spread? No. Prostate biopsy utilizes a closed true-cut needle system and is completely safe.Focal Therapy Modalities (NanoKnife vs. Laser vs. HIFU): Different energy sources (electrical pulses, laser thermal heat, ultrasound) are chosen based on the lesion's specific anatomical location inside the prostate.Post-Surgical Erectile Dysfunction Management: Treated using daily low-dose PDE5 inhibitors (tadalafil), vacuum pumps, intracavernosal injections, or penile implants.Continuing Professional Development (CPD): Australian general practitioners can obtain CPD points for listening to this episode from our education partner, My Health Academy.Myhealth Academy Link: https://lms-academy.myhealth.net.au/login/index.php?tenant=MHAC01Access your favourite conferences by podcast: https://www.armchairmedical.tv/podcastsEnjoying the episode?⭐ Rate this episode➕ Follow the podcast💬 Share it with a colleague who’d value conference learning without the time awayDisclaimer: Content is for health professionals and general educational purposes only. It is not medical advice or a substitute for independent clinical judgement. Always consult current guidelines, product information and local protocols. Views expressed are those of the presenters and not necessarily ArmchairMedical. ArmchairMedical accepts no responsibility or liability for any loss or harm resulting from reliance on the information provided.Visit https://www.armchairmedical.tv/podcasts for more information.-------------------------------------------------------------------------------If you are a General Practitioner who gets invited to dozens of webinars a month. The General Practice Clinical Sessions Podcast is designed for you.Instead of giving up an evening with your family for a live webinar or your weekend for a conference, you can listen to it here whenever it's convenient, in half the time and while you are commuting, exercising or even walking the dog.It's the same education, without interrupting your life.GPs can also earn CPD hours.Earn Educational Activity (EA) CPD without sacrificing time with your family.Listen to your Clinical Sessions Podcasts on your commute or while you exercise. Then each week, calculate the amount of time you invest listening and count that as self claimed Educational Activities (EA).Earn Reviewing Performance (RP) CPD without sacrificing time with your family.After each podcast, pause for a few minutes and identify and summarise 3 key points relevant to your scope of practice.Identify the key clinical learnings that may be incorporated into the clinical assessment, work-up and/or management plan for appropriate patients.If relevant, would you change any of your management strategies for those patients identified by appropriate screening, examination and investigation.Invest 10 minutes per podcast mentally reviewing your practice. When you listen to 6 podcasts per week, you have earned an hour of Reviewing Performance CPD you can self claim.Remember to document your learning!Earn Measuring Outcomes (MO) CPD without sacrificing time with your family.To claim MO, you need:A baseline measurementA change in practiceA re-measurementReflection on the outcome1. Identify a measurable change. After the podcast, ask:“What will I do differently on Monday?”Example:Start using a screening toolChange prescribing habitsIncrease documentation of a risk factor2. Measure your baseline (quick audit). Do a small, realistic auditExamples:Review last 10 patients with condition X% who had guideline-based management% with documented counselling3. Implement the change. Apply the idea from the podcast for 2–4 weeksCould be as simple as a checklist, template, or reminder4. Re-measure. Repeat the same audit:Same sample sizeSame criteria5. Reflect & Document:What changed?Did outcomes improve?What will you keep doing?If you enjoy learning through podcasts and video podcasts then you can also access thousands of premium podcasts with PowerPoint Slides at https://www.armchairmedical.tv/podcasts
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