Value and Limitations of Urethrotech Catheterisation Device to Manage Difficult Urethral Catheterisation in Male Spinal Cord Injury Patients.

Methods: We used a Urethrotech catheterisation device in 57 male patients with spinal cord injury, in whom urethral catheterisation was unsuccessful or previous catheterisation was difficult.

Results: Urethrotech catheter could be inserted in 51 patients. No patient developed urinary tract infection.

Delay in diagnosis of urethral perforation due to catheterisation in a person with cervical spinal cord injury. Importance of (1) imaging studies done promptly for detection and documentation of urethral trauma, (2) Urethrotech catheterisation device to minimise urethral trauma and achieve successful catheterisation: A case report.

Introduction And Importance: Spinal cord injury patients are at risk for urethral trauma during catheterisation. We report a patient in whom urethral perforation due to catheterisation was not recognised for ∼ four days.

Case Presentation: Following a routine catheter change by community nurses in a male person with tetraplegia, the catheter drained only a small amount of urine.

Milk of calcium in renal calyces, renal pelvis, and ureter in a person with tetraplegia.

Milk of calcium is a colloidal suspension of precipitated calcium salts which lies in a dependent manner and imaging reveals a horizontal upper edge. We report a 44-year-old male person with tetraplegia, who had been staying in bed for prolonged periods due to ischial and trochanteric pressure sores. Ultrasound scan of the kidneys revealed numerous variable-sized stones in the left kidney.

Possible Use of a Safety-Valve with a Foley Catheter During Catheterisation of Male Spinal Cord Injury Patients for Prevention of Urethral Trauma Caused by Inflation of the Catheter Balloon in the Urethra.

We used a safety-valve (Trans-Urethral Catheterisation Safety Valve, Class Medical, Limerick, Ireland) to prevent urethral trauma due to inflation of the anchoring balloon in the urethra during catheterisation of male spinal cord injury patients in a spinal unit. The safety-valve is attached to the balloon channel of a Foley catheter. If the balloon is inflated when it is in the urethra, the pressure valve is activated.

Inactivation of SARS-CoV-2 and Other Human Coronaviruses Aided by Photocatalytic One-Dimensional Titania Nanotube Films as a Self-Disinfecting Surface.

SARS-CoV-2 and its variants that continue to emerge have necessitated the implementation of effective disinfection strategies. Developing self-disinfecting surfaces can be a potential route for reducing fomite transmissions of infectious viruses. We show the effectiveness of TiO nanotubes (T_NTs) on photocatalytic inactivation of human coronavirus, HCoV-OC43, as well as SARS-CoV-2.

Value of serial ultrasound imaging in conservative management of epididymo-cutaneous fistula in a person with cervical spinal cord injury.

Epididymo-cutaneous fistula was seen in a person with cervical spinal cord injury and neuropathic bladder. This patient developed left epididymitis; then he formed an abscess superficial to the tail of the epididymis, which burst open to the skin discharging pus; subsequently, this progressed to epididymo-cutaneous fistula. A few drops of urine would leak through the fistula.

Large amounts of debris in the neuropathic bladder in persons with spinal cord injury; value of ultrasound scan in detection and management of vesical debris.

Persons with spinal cord injury are at risk for developing debris in the neuropathic bladder. Ultrasound scan of the urinary bladder helps to (1) detect debris, (2) differentiate debris from other bladder lesions, (3) alert the spinal cord physician to review bladder management, and (4) monitor the effect of various treatment regime to clear the debris. We present 4 cases to illustrate the sonographic appearances of debris in the neuropathic bladder and how treatment plans tailored to the needs of the individual patient helped to clear the debris.

Nephrogenic metaplasia in a female person with spinal cord injury: chronic irritation caused by Foley balloon was aggravated by a large uterine fibroid pressing upon the bladder wall for several years: a case report.

Introduction: Chronic irritation caused by urinary catheter may predispose to metaplastic changes in the bladder and very rarely, nephrogenic metaplasia.

Case Presentation: A 53-year-old lady with T-2 paraplegia and urethral catheter drainage for 27 years presented with haematuria. MRI of pelvis, performed seven years ago, showed a 10 cm intramural fibroid within the anterior aspect of the uterine body which was pushing the collapsed urinary bladder containing the Foley catheter to the left.

Erosion of urethra by malleable penile prosthesis in a spinal cord injury patient with diabetes mellitus and repeated misplacement of Foley balloon in the urethra: lessons we learn: a case report.

Introduction: Spinal cord injury patients with indwelling urethral catheters are at high risk for erosion of urethra by penile prosthesis. Repeated misplacement of a Foley catheter with the balloon inflated in the urethra produces additional compression, thus predisposing to erosion of urethra by the prosthesis.

Case Presentation: A 22-year male sustained tetraplegia in 1980.

Boosting Photocatalytic Activity Using Reduced Graphene Oxide (RGO)/Semiconductor Nanocomposites: Issues and Future Scope.

Semiconductor nanoparticles are promising materials for light-driven processes such as , , and . Effective application of these materials alongside light can assist in reducing the dependence on fossil-fuel driven processes and aid in resolving critical environmental issues. However, severe recombination of the photogenerated charge-carriers is a persistent bottleneck in several semiconductors, particularly those that contain multiple cations.

Inactivation of Human Coronavirus by Titania Nanoparticle Coatings and UVC Radiation: Throwing Light on SARS-CoV-2.

The newly identified pathogenic human coronavirus, SARS-CoV-2, led to an atypical pneumonia-like severe acute respiratory syndrome (SARS) outbreak called coronavirus disease 2019 (abbreviated as COVID-19). Currently, nearly 77 million cases have been confirmed worldwide with the highest numbers of COVID-19 cases in the United States. Individuals are getting vaccinated with recently approved vaccines, which are highly protective in suppressing COVID-19 symptoms but there will be a long way before the majority of individuals get vaccinated.

Discitis following urinary tract infection manifesting as recurrent autonomic dysreflexia related to truncal movements in a person with tetraplegia.

A 44-year-old male person with tetraplegia (C-5 AIS-A (American Spinal Cord Injury Association Standard Neurological Classification of Spinal Cord Injury Impairment Scale)) developed urinary tract infection and received appropriate antibiotic. Subsequently, he started sweating and shivering when he was sitting up; these symptoms resolved while lying on his back. Autonomic dysreflexia triggered by truncal movements continued to occur for 3 months.

Generalised muscle weakness after bladder wall injection of Abobotulinum Toxin A: experience of a woman with tetraplegia who required increased caregiver support: importance of doctor-patient communication: duty of candour for spinal cord physician and responsibilities of a patient.

Introduction: Generalised muscle weakness can occur after bladder wall injection of Abobotulinum toxin and the patient may require additional caregiver support.

Case Presentation: A woman with C-8 AIS A tetraplegia received bladder wall injection of Abobotulinum toxin A 1000 units for detrusor over-activity. After 2.

Persistent urine leakage around a suprapubic catheter: the experience of a person with chronic tetraplegia.

Introduction: Persistent urine leakage after suprapubic cystostomy in tetraplegic subjects occurs due to shrinkage of the urinary bladder and bladder spasms. The patient's social life is adversely affected as clothes become wet, smelly, and require frequent changing, thus increasing the workload of carers.

Case Presentation: A 48-year-old male sustained C-4 complete (AIS:A) tetraplegia while swimming in 2007.

Fatal cerebral hemorrhage in a tetraplegic patient due to autonomic dysreflexia triggered by delay in emptying urinary bladder after unsuccessful intermittent catheterization by carer: lessons learned.

Introduction: Over-distension of urinary bladder in a high spinal cord injury patient is a triggering factor for autonomic dysreflexia. Removing triggering factors is vital to prevent autonomic dysreflexia.

Case Presentation: A 36-year-old tetraplegic patient, who was managed by intermittent catheterizations performed by caregivers, developed recurrent autonomic dysreflexia during a week due to: 1) carers not performing intermittent catheterizations every night; 2) infrequent catheterizations during the day, leading to distension of urinary bladder.

Fatal collapse due to autonomic dysreflexia during manual self-evacuation of bowel in a tetraplegic patient living alone: lessons to learn.

Background: To identify areas for improvement, the National Health Service in England mandates the review of case reports of patients who have died, which should be translated into improved care for other patients.

Case Report: A 49-year-old Caucasian man sustained C-7 tetraplegia in a motorcycle accident in 1992. In 2009, he developed seizures and collapsed in the lavatory on a number of occasions during manual self-evacuation of his bowel.

Severe, Protracted Spasm of Urinary Bladder and Autonomic Dysreflexia Caused by Changing the Suprapubic Catheter in a Cervical Spinal Cord Injury Patient: Treatment by a Bolus Dose and Increased Total Daily Dose of Intrathecal Baclofen.

Background: Intrathecal administration of baclofen by implanted pump reduces rigidity and muscle spasms. Its use specifically to control bladder spasms has not been reported.

Case Report: A tetraplegic patient developed severe, protracted, bladder spasms, abdominal muscles spasms, and high blood pressure after change of suprapubic catheter; nifedipine, diazepam, and paracetamol did not control spasms; bolus dose of baclofen intrathecally produced prompt relief via baclofen pump.

Engineered Solution-Liquid-Solid Growth of a "Treelike" 1D/1D TiO Nanotube-CdSe Nanowire Heterostructure: Photoelectrochemical Conversion of Broad Spectrum of Solar Energy.

This work presents a hitherto unreported approach to assemble a 1D oxide-1D chalcogenide heterostructured photoactive film. As a representative system, bismuth (Bi) catalyzed 1D CdSe nanowires are directly grown on anodized 1D TiO nanotube (T_NT). A combination of the reductive successive-ionic-layer-adsorption-reaction (R-SILAR) and the solution-liquid-solid (S-L-S) approach is implemented to fabricate this heterostructured assembly, reported in this 1D/1D form for the first time.

Large subcapsular hematoma following ureteroscopic laser lithotripsy of renal calculi in a spina bifida patient: lessons we learn.

Introduction: Paraplegic patients are at greater risk of developing complications following ureteroscopic lithotripsy because of urine infection associated with neuropathic bladder, difficulties in access due to altered anatomy of urinary bladder and urethra, spinal curvature, spasticity, and contractures. We report the occurrence of large subcapsular hematoma following ureteroscopy and discuss lessons we learn from this case.

Case Report: A 48-year-old male patient with spina bifida underwent ureteroscopy with laser lithotripsy and ureteric stenting for left ureteric stone and staghorn calculus with hydronephrosis; laser lithotripsy was repeated after 3 months; both procedures were performed by a senior urologist and did not result in any complications.

The risk of intra-urethral Foley catheter balloon inflation in spinal cord-injured patients: Lessons learned from a retrospective case series.

Background: Inflating the balloon of Foley catheter in urethra is a complication of urethral catheterisation. We report five patients in whom this complication occurred because of unskilled catheterisation. Due to lack of awareness, the problem was not recognised promptly and patients came to harm.

Effects of Carbon Allotrope Interface on the Photoactivity of Rutile One-Dimensional (1D) TiO2 Coated with Anatase TiO2 and Sensitized with CdS Nanocrystals.

The assembly of a large-bandgap one-dimensional (1D) oxide-conductive carbon-chalcogenide nanocomposite and its surface, optical, and photoelectrochemical properties are presented. Microscopy, surface analysis, and optical spectroscopy results are reported to provide insights into the assembly of the nanostructure. We have investigated (i) how the various carbon allotropes (C60), reduced graphene oxide (RGO), carbon nanotubes (CNTs), and graphene quantum dots (GQDs) can be integrated at the interface of the 1D TiO2 and zero-dimensional (0D) CdS nanocrystals; (ii) the carbon allotrope and CdS loading effects; (iii) the impact of the carbon allotrope presence on 0D CdS nanocrystals; and (iv) how they promote light absorbance.

Acute Urinary Obstruction in a Tetraplegic Patient from Misplacement of Catheter in Urethra.

A male tetraplegic patient attended accident and emergency with a blocked catheter; on removing the catheter, he passed bloody urine. After three unsuccessful attempts were made to insert a catheter by nursing staff, a junior doctor inserted a three-way Foley catheter with a 30-mL balloon but inflated the balloon with 10 mL of water to commence the bladder irrigation. The creatinine level was mostly 19 µmol/L (range: 0-135 µmol/L) but increased to 46 µmol/L on day 7.

Urinary retention and acute kidney injury in a tetraplegic patient using condom catheter after partying: a preventable complication.

Background: Spinal cord injury patients, who manage their bladder using a condom catheter, are at risk of developing urine retention when they consume large volumes of alcoholic drinks within a short period of time.

Case Presentation: A male tetraplegic patient had been managing satisfactorily penile sheath drainage for 8 years. He went out socializing during which he consumed large volumes of alcohol but did not take any recreational drugs.

Free energy dependence of pure phase iron doped bismuth titanate from first principles calculations.

A density functional theory study of Fe substitutions in Bi2Ti2O7 photocatalyst (Fe-BTO) is presented. It models an experiment where H2 production of Fe-BTO peaked for samples loaded with 1% Fe concentration then decreased for samples with heavier loadings. The total energy calculations were used to determine defect formation energies and the chemical potential landscape that suggests the observed formation of Fe2O3 (in samples at 2% Fe concentration) was detrimental to H2 production.

Complications and salvage options after laser lithotripsy for a vesical calculus in a tetraplegic patient: a case report.

Background: Laser lithotripsy of vesical calculi in tetraplegic subjects with long-term urinary catheters is fraught with complications because of bladder wall oedema, infection, fragile urothelium, bladder spasms, and autonomic dysreflexia. Severe haematuria should be anticipated; failure to institute measures to minimise bleeding and prevent clot retention can be catastrophic. We present an illustrative case.