Benign prostate and bladder outlet
Incision, resection, enucleation, vaporisation and implant-based outlet procedures.
Aquablation of the prostate
Bleeding, haemoglobin drop or clot retention
Waterjet resection creates a broad raw surface, and the haemostasis strategy has variant-specific trade-offs.
Applies to: Standard Aquablation · Aquablation with focal cautery haemostasis · Aquablation with traction-based haemostasisCapsular or bladder-neck injury
Incorrect contouring, movement or loss of registration can direct the jet beyond intended adenoma.
Applies to: Standard Aquablation · Aquablation with focal cautery haemostasis · Aquablation with traction-based haemostasisThermal or ureteric-orifice injury during haemostasis
Cautery used after the waterjet phase can damage bladder neck, orifices or capsule if landmarks are unclear.
Applies to: Aquablation with focal cautery haemostasisUrinary infection
Instrumentation, tissue resection and catheterisation contribute to postoperative infection risk.
Applies to: Standard Aquablation · Aquablation with focal cautery haemostasis · Aquablation with traction-based haemostasisRetention, dysuria or persistent storage symptoms
Oedema, clot, tissue debris and baseline bladder dysfunction may impair voiding after catheter removal.
Applies to: Standard Aquablation · Aquablation with focal cautery haemostasis · Aquablation with traction-based haemostasisEjaculatory or erectile-function change
Although contouring may aim to spare ejaculation-related structures, sexual-function change remains possible.
Applies to: Standard Aquablation · Aquablation with focal cautery haemostasis · Aquablation with traction-based haemostasisUrethral stricture, bladder-neck contracture or retreatment
Instrumentation, healing or residual/progressive obstruction may lead to delayed narrowing or another outlet procedure.
Applies to: Standard Aquablation · Aquablation with focal cautery haemostasis · Aquablation with traction-based haemostasisGreenLight photoselective vaporisation of the prostate
Bleeding or clot retention
Although vaporisation is haemostatic, capsular or bladder-neck vessels can bleed during treatment or recovery.
Applies to: Standard GreenLight vaporisation · Anatomical vaporisation · Vapo-enucleation techniqueCapsular perforation or thermal injury
Excessive depth, stationary energy or loss of landmarks can breach the capsule or damage adjacent tissue.
Applies to: Standard GreenLight vaporisation · Anatomical vaporisation · Vapo-enucleation techniqueDysuria, urgency or urinary retention
Oedema, sloughed tissue and thermal irritation may cause marked storage symptoms or impaired emptying.
Applies to: Standard GreenLight vaporisation · Anatomical vaporisation · Vapo-enucleation techniqueUrinary infection
Instrumentation, catheterisation and devitalised tissue contribute to infection risk.
Applies to: Standard GreenLight vaporisation · Anatomical vaporisation · Vapo-enucleation techniqueSphincter or ureteric-orifice injury
Laser energy applied beyond the intended outlet tissue can affect continence or upper-tract drainage.
Applies to: Standard GreenLight vaporisation · Anatomical vaporisation · Vapo-enucleation techniqueRetrograde ejaculation or sexual-function change
Bladder-neck and prostatic tissue treatment can change ejaculation and other aspects of sexual function.
Applies to: Standard GreenLight vaporisation · Anatomical vaporisation · Vapo-enucleation techniqueUrethral stricture, bladder-neck contracture or residual obstruction
Healing or inadequate tissue removal may produce recurrent obstruction and further treatment.
Applies to: Standard GreenLight vaporisation · Anatomical vaporisation · Vapo-enucleation techniqueHoLEP and endoscopic enucleation of the prostate
Capsular perforation or extravasation
Loss of the capsular plane can create a defect, bleeding and irrigation-fluid extravasation.
Applies to: Holmium laser enucleation · Thulium laser enucleation · Bipolar endoscopic enucleation · En-bloc enucleation · Multi-lobe enucleationBleeding or clot retention
Capsular vessels may bleed during dissection or after catheter removal despite energy-assisted haemostasis.
Applies to: Holmium laser enucleation · Thulium laser enucleation · Bipolar endoscopic enucleation · En-bloc enucleation · Multi-lobe enucleationBladder injury during morcellation
Poor visibility, loss of distension or tissue adherence to the wall can allow the morcellator to injure bladder mucosa or perforate the bladder.
Applies to: Holmium laser enucleation · Thulium laser enucleation · Bipolar endoscopic enucleation · En-bloc enucleation · Multi-lobe enucleationMorcellator failure or retained adenoma
Equipment failure, firm tissue, bleeding or unsafe visibility may prevent complete tissue retrieval in the same session.
Applies to: Holmium laser enucleation · Thulium laser enucleation · Bipolar endoscopic enucleation · En-bloc enucleation · Multi-lobe enucleationUrinary infection
Instrumentation, devascularised tissue, bacteriuria and catheterisation contribute to postoperative infection.
Applies to: Holmium laser enucleation · Thulium laser enucleation · Bipolar endoscopic enucleation · En-bloc enucleation · Multi-lobe enucleationTransient or persistent urinary incontinence
Urgency, temporary sphincter dysfunction or direct apical injury can cause leakage, with technique and anatomy influencing persistence.
Applies to: Holmium laser enucleation · Thulium laser enucleation · Bipolar endoscopic enucleation · En-bloc enucleation · Multi-lobe enucleationRetrograde ejaculation or sexual-function change
Anatomical removal of outlet tissue commonly alters ejaculation and may affect orgasmic or erectile experience.
Applies to: Holmium laser enucleation · Thulium laser enucleation · Bipolar endoscopic enucleation · En-bloc enucleation · Multi-lobe enucleationUrethral stricture or bladder-neck contracture
Large-calibre instrumentation, thermal injury and healing can produce delayed narrowing.
Applies to: Holmium laser enucleation · Thulium laser enucleation · Bipolar endoscopic enucleation · En-bloc enucleation · Multi-lobe enucleationProstatic drug-coated balloon dilation
Haematuria and clot retention
The commissurotomy leaves a raw surface that has not been coagulated, so bleeding and clot are the expected early problems.
Applies to: Standard drug-coated balloon dilation · Dilation with planned catheter pathwayAcute urinary retention
Oedema of the split surface can obstruct at the trial without catheter.
Applies to: Standard drug-coated balloon dilation · Dilation with planned catheter pathwayOver-dilation with extravasation
A balloon oversized for the gland or seated wrongly can tear beyond the commissure into periprostatic tissue.
Applies to: Standard drug-coated balloon dilationSphincteric dilation and continence risk
A working lobe seated distal to the verumontanum applies pressure across the membranous urethra.
Applies to: Standard drug-coated balloon dilationUrinary infection
Instrumentation, a raw surface and short-term catheterisation contribute to infection risk.
Applies to: Standard drug-coated balloon dilation · Dilation with planned catheter pathwaySexual-function change
The technique aims to preserve ejaculation, but ejaculatory or erectile change remains possible.
Applies to: Standard drug-coated balloon dilationPersistent obstruction or retreatment
Refusion of the commissure or unsuitable anatomy can leave symptoms and require another intervention.
Applies to: Standard drug-coated balloon dilation · Dilation with planned catheter pathwayProstatic urethral lift
Dysuria, urgency, pelvic pain or haematuria
Needle passage, capsular tabs and mucosal irritation can cause short-term urinary symptoms, discomfort and bleeding.
Applies to: Lateral-lobe prostatic urethral lift · Obstructive median-lobe lift · Salvage or additional implant placementAcute urinary retention
Swelling, bleeding or an inadequate channel may prevent voiding after the procedure.
Applies to: Lateral-lobe prostatic urethral lift · Obstructive median-lobe lift · Salvage or additional implant placementUrinary infection
Instrumentation, retention and temporary catheterisation contribute to infection risk.
Applies to: Lateral-lobe prostatic urethral lift · Obstructive median-lobe lift · Salvage or additional implant placementImplant malposition, migration or encrustation
An implant too close to the bladder can become exposed, migrate or act as a nidus for mineral deposition.
Applies to: Lateral-lobe prostatic urethral lift · Obstructive median-lobe lift · Salvage or additional implant placementCapsular penetration or adjacent-tissue pain
Device deployment beyond the intended depth can injure extraprostatic tissue or produce persistent pelvic symptoms.
Applies to: Lateral-lobe prostatic urethral lift · Obstructive median-lobe lift · Salvage or additional implant placementSexual-function change
The technique aims to preserve sexual function, but ejaculatory, erectile or discomfort-related changes remain possible.
Applies to: Lateral-lobe prostatic urethral lift · Obstructive median-lobe lift · Salvage or additional implant placementPersistent obstruction or retreatment
Implants do not remove tissue; inadequate displacement or progressive adenoma may require repeat or alternative surgery.
Applies to: Lateral-lobe prostatic urethral lift · Obstructive median-lobe lift · Salvage or additional implant placementComplexity during later outlet surgery
Retained implants can alter later resection, enucleation, laser use or morcellation and should be anticipated.
Applies to: Lateral-lobe prostatic urethral lift · Obstructive median-lobe lift · Salvage or additional implant placementSimple prostatectomy for benign prostatic obstruction
Major bleeding, clot retention or transfusion requirement
The broad enucleation surface and capsular vessels can cause substantial perioperative or delayed haemorrhage.
Applies to: Open transvesical simple prostatectomy · Open transcapsular simple prostatectomy · Laparoscopic simple prostatectomy · Robot-assisted simple prostatectomyBladder, ureteric-orifice or rectal injury
Distorted large-gland anatomy and deep dissection place adjacent urinary and rectal structures at risk.
Applies to: Open transvesical simple prostatectomy · Open transcapsular simple prostatectomy · Laparoscopic simple prostatectomy · Robot-assisted simple prostatectomyUrine leak or fistula
Failure of bladder, capsular or outlet closure may cause pelvic urine leakage and prolonged drainage.
Applies to: Open transvesical simple prostatectomy · Open transcapsular simple prostatectomy · Laparoscopic simple prostatectomy · Robot-assisted simple prostatectomyUrinary infection or wound infection
A large urinary tract operation, catheterisation and an abdominal wound create urinary and surgical-site infection risk.
Applies to: Open transvesical simple prostatectomy · Open transcapsular simple prostatectomy · Laparoscopic simple prostatectomy · Robot-assisted simple prostatectomyVenous thromboembolism or cardiopulmonary complication
Major pelvic surgery, blood loss, positioning and reduced mobility contribute to systemic postoperative complications.
Applies to: Open transvesical simple prostatectomy · Open transcapsular simple prostatectomy · Laparoscopic simple prostatectomy · Robot-assisted simple prostatectomyUrinary incontinence
Temporary urgency or stress leakage may occur, while apical or sphincter injury can cause persistent incontinence.
Applies to: Open transvesical simple prostatectomy · Open transcapsular simple prostatectomy · Laparoscopic simple prostatectomy · Robot-assisted simple prostatectomyRetrograde ejaculation and sexual-function change
Adenoma enucleation and bladder-neck reconstruction commonly alter ejaculation and can affect erectile or orgasmic function.
Applies to: Open transvesical simple prostatectomy · Open transcapsular simple prostatectomy · Laparoscopic simple prostatectomy · Robot-assisted simple prostatectomyBladder-neck contracture or urethral stricture
Outlet reconstruction and catheter-related healing may create recurrent narrowing.
Applies to: Open transvesical simple prostatectomy · Open transcapsular simple prostatectomy · Laparoscopic simple prostatectomy · Robot-assisted simple prostatectomyTemporarily implanted nitinol device
Acute urinary retention
Swelling and device-related irritation can prevent voiding while the device is in place or after removal.
Applies to: Standard temporary implant · Early removal for intoleranceDysuria, urgency and pelvic pain
Sustained pressure and ischaemic tissue produce bothersome symptoms for the days the device remains in place.
Applies to: Standard temporary implant · Early removal for intoleranceDevice migration
Incorrect leaflet orientation or seating allows the device to move into the bladder or too far distally.
Applies to: Standard temporary implant · Retrieval of a migrated deviceSphincteric malposition and continence risk
A device seated distal to the verumontanum places a strut across the membranous urethra and the external sphincter.
Applies to: Standard temporary implantUrinary infection
An indwelling device with ischaemic tissue for several days contributes to infection risk.
Applies to: Standard temporary implant · Early removal for intolerance · Retrieval of a migrated deviceHaematuria
Separation of the ischaemic lines causes bleeding during the implant period and after removal.
Applies to: Standard temporary implant · Early removal for intolerancePersistent obstruction or retreatment
The remodelling effect is smaller than resection and a proportion of patients require a further procedure.
Applies to: Standard temporary implantBleeding or clot retention
An incision may open venous sinuses or scar vessels and postoperative clot can obstruct drainage.
Applies to: Single-incision TUIP · Bilateral TUIP · Bladder-neck incision for contracture · Laser bladder-neck incisionCapsular or extravesical perforation
An incision carried beyond the intended depth can breach the prostate, bladder neck or adjacent tissue.
Applies to: Single-incision TUIP · Bilateral TUIP · Bladder-neck incision for contracture · Laser bladder-neck incisionUreteric-orifice injury
Distorted postoperative anatomy can bring an orifice close to a lateral or scar-directed incision.
Applies to: Bladder-neck incision for contractureUrinary infection
Instrumentation, catheterisation and residual obstruction can contribute to postoperative infection.
Applies to: Single-incision TUIP · Bilateral TUIP · Bladder-neck incision for contracture · Laser bladder-neck incisionRetrograde ejaculation or ejaculatory change
Opening the bladder neck can alter antegrade ejaculation; risk varies with incision pattern and anatomy.
Applies to: Single-incision TUIP · Bilateral TUIP · Bladder-neck incision for contracture · Laser bladder-neck incisionStress urinary incontinence
Incising a contracture may unmask weak sphincter function or injure continence tissue.
Applies to: Bladder-neck incision for contractureRecurrent obstruction or contracture
Incomplete opening, progressive adenoma or scar reformation may lead to recurrent symptoms and further intervention.
Applies to: Single-incision TUIP · Bilateral TUIP · Bladder-neck incision for contracture · Laser bladder-neck incisionTransurethral resection of the prostate
Bleeding and clot retention
Open venous sinuses or arterial points may bleed during or after resection and obstruct catheter drainage.
Applies to: Monopolar TURP · Bipolar TURP · Standard complete TURP · Limited channel TURPCapsular perforation or extravasation
Resection beyond the capsule can open venous sinuses, permit irrigant extravasation and distort the operative plane.
Applies to: Monopolar TURP · Bipolar TURP · Standard complete TURP · Limited channel TURPIrrigation-fluid absorption syndrome
Absorption of non-electrolyte irrigation through open sinuses can cause acute fluid and electrolyte disturbance.
Applies to: Monopolar TURPVolume overload or physiological disturbance
Saline irrigation avoids classic hypotonic fluid effects but substantial absorption can still contribute to cardiopulmonary or metabolic instability.
Applies to: Bipolar TURP · Standard complete TURP · Limited channel TURPUreteric-orifice, bladder-neck or sphincter injury
Loss of landmarks, deep resection or apical over-treatment may damage drainage or continence structures.
Applies to: Monopolar TURP · Bipolar TURP · Standard complete TURP · Limited channel TURPUrinary infection or sepsis
Instrumentation, bacteriuria, tissue trauma and catheterisation create postoperative infection risk.
Applies to: Monopolar TURP · Bipolar TURP · Standard complete TURP · Limited channel TURPRetrograde ejaculation and erectile or orgasmic change
Bladder-neck and prostatic tissue removal commonly changes ejaculation and can affect other aspects of sexual function.
Applies to: Monopolar TURP · Bipolar TURP · Standard complete TURP · Limited channel TURPUrinary incontinence or persistent storage symptoms
Urgency may persist after relief of obstruction, while sphincter injury or unmasked weakness can produce stress leakage.
Applies to: Monopolar TURP · Bipolar TURP · Standard complete TURP · Limited channel TURPUrethral stricture, bladder-neck contracture or regrowth
Healing or residual/progressive adenoma can cause recurrent obstruction and need for further treatment.
Applies to: Monopolar TURP · Bipolar TURP · Standard complete TURP · Limited channel TURPWater-vapour thermal therapy of the prostate
Acute urinary retention
Expected inflammatory swelling can transiently worsen obstruction and prolong or recreate the need for drainage.
Applies to: Lateral-lobe water-vapour treatment · Median-lobe water-vapour treatment · Water-vapour treatment with planned catheter pathwayDysuria, urgency or pelvic discomfort
Thermal inflammation and tissue necrosis can cause bothersome urinary and pelvic symptoms during healing.
Applies to: Lateral-lobe water-vapour treatment · Median-lobe water-vapour treatment · Water-vapour treatment with planned catheter pathwayUrinary infection
Instrumentation, retention, necrotic tissue and catheterisation can contribute to infection.
Applies to: Lateral-lobe water-vapour treatment · Median-lobe water-vapour treatment · Water-vapour treatment with planned catheter pathwayHaematuria or haematospermia
Needle puncture and tissue inflammation can cause urinary or seminal bleeding.
Applies to: Lateral-lobe water-vapour treatment · Median-lobe water-vapour treatment · Water-vapour treatment with planned catheter pathwayBladder-neck, sphincter or extraprostatic thermal injury
Incorrect needle depth or treatment location may affect non-target structures and produce pain, continence or outlet consequences.
Applies to: Lateral-lobe water-vapour treatment · Median-lobe water-vapour treatmentSexual-function change
The procedure is designed to limit sexual adverse effects, but ejaculatory, erectile or sensory changes can still occur.
Applies to: Lateral-lobe water-vapour treatment · Median-lobe water-vapour treatment · Water-vapour treatment with planned catheter pathwayPersistent obstruction or need for retreatment
Incomplete tissue response, unsuitable anatomy or progressive adenoma can leave symptoms and require another intervention.
Applies to: Lateral-lobe water-vapour treatment · Median-lobe water-vapour treatment · Water-vapour treatment with planned catheter pathway