Rigid Cystoscopy Research Articles

Laborie Optilume® Drug-coated balloon may lower the re-treatment rate post-intervention for challenging urethral stricture disease in long-term follow-up: A prospective cohort study.

Urethral stricture disease is a common and at times unsatisfying condition that can lead to complications severely impacting a patient's quality of life. Open urethroplasty remains the gold standard treatment; however, it is an invasive and highly specialized procedure. Strictures between 2 to 4 cm in length have been shown to recur at a rate of 50% within 12 months, a rate that typically decreases with each subsequent treatment. The Laborie Optilume drug-coated balloon (DCB) is the first of its kind developed for adjunct treatment of urethral strictures in men. The DCB initially treats the stricture through balloon dilatation and subsequently aims to prevent recurrence via the localized application of Paclitaxel. Our study assesses the safety and efficacy of the DCB in an Australian population with strictures exceeding 2 cm who have undergone at least two prior procedures for urethral stricture disease. Patients were prospectively recruited from November 2019 to September 2021. International prostate symptom score (IPSS), IPSS quality of life (QOL) and voiding parameters were collected at baseline, and again at 1, 6, 12 and 18 months. The drug coated balloon was applied by a single consultant urologist under rigid cystoscope with shallow direct vision internal urethrotomy with a cold knife prior to application of the DCB. 17 patients were recruited with an average of 7.7 prior urethral procedures for recurrent stricture disease. 76% were stricture free at 30 months follow-up. There were improvements in almost all parameters including max flow, average flow, IPSS and IPSS QOL scores at 12 and 24 months. There were no complications. The DCB is a safe and effective method at reducing the rates of recurrence for high-risk stricture disease and can delay or prevent the need for urethroplasty in what remains a very challenging cohort of patients.

La boîte à outils de l’urétéroscopie ou « ce qu’il faut emporter sur une île déserte »

Flexible ureteroscopy is now widely used as the preferred option to surgically treat a urinary stone, due to several technological advancements. Thus, choosing the adequate equipment is challenging, but respect safety concepts. Indeed, placing the safety wire (nitinol, 0,035’’, « stiff ») under rigid cystoscopy is not mandatory but improve safety. Regarding ureteral access sheath (UAS), considerations are similar : UAS facilitates vision, pressure and temperature control but can also be responsible of ureteral injuries at insertion. Suction devices are now undervaluation and could not be discussed. To limit the barotrauma risk, irrigation devices with manual pumps should be used (40cmH20). Choosing a flexible ureteroscope (fURS) is challenging; a special attention has to be given to size, deflexion, working channel position and vision. Thus, using a single fURS is hardly imaginable. Both Holmium:Yttrium-Aluminium-Garnet(Ho:YAG) et Thulium Fiber (TFL) lasers are recommended to treat urinary stones during fURS, with a potential advantage of TFL on thin pulverization. A wide variety of baskets exists and size and shape have to be considered before acquisition. Finally, if ureteral stenting is not mandatory in uncomplicated cases, silicone stents present a lower risk of encrustation and stent-related symptoms compared to polyurethane ones.

Outcome of Real Time Self-visualization of Rigid Cystoscopy Procedure on Procedural Pain in Male Patients

In patients undergoing fixed orthodontic therapy, favorable conditions for plaque stagnation as well as difficulty in performing usual oral hygiene measures have been associated with poorer periodontal health among orthodontic patients. So this study aims to assess the effect of the duration of fixed orthodontic treatment on presence of gingival enlargement in adolescents and young adults. This cross sectional descriptive study was conducted in the dental hospital of Nepal Medical College Teaching Hospital. Patients under fixed orthodontic therapy for at least 3 months were examined for the presence of gingival enlargement (GE). Demographic variables and the details of duration of the fixed orthodontic therapy was recorded along with presence of gingival enlargement and its grading. The oral hygiene habits like frequency of brushing, use of interdental cleaning aids were recorded along with plaque index. Gingival enlargement was present in 204 (63.7%) out of total 320 patients taken, among which 124 patients (38.8%) had gingival enlargement of score 1 and 80 (25.0%) patients had gingival enlargement of score 2. Gingival enlargement was observed in 101 (73.2%) in 20-30 years old patients which was more prevalent in this age group. Oral hygiene habits like frequency of brushing and use of interdental aids also seem to affect the occurrence of gingival enlargement in patients. Among those who were undergoing orthodontic therapy for more than 2 years, 48 (82.8%) had presence of gingival enlargement. Mean of plaque index was seen to be statistically associated with presence of gingival enlargement. Thus, this study showed that the duration of orthodontic treatment duration significantly influenced the occurrence of GE. Therefore, oral hygiene instructions and motivations should be reinforced for patients undergoing orthodontic treatment.

Holmium Laser Incision of Ejaculatory Duct (HoLIED): Surgical Procedure

Introduction: Ejaculatory duct obstruction is a well-known cause of infertility and many other symptoms, such as hematospermia and lower urinary tract symptoms. Diagnosis is made based on the medical history and a series of imaging tests identifying the obstructed ducts. Transurethral resection of the ejaculatory ducts is the mainstay treatment to release the obstruction. In this step-by-step surgical video, we will describe a novel technique using the holmium laser to incise the ejaculatory ducts in a patient with chronic lower urinary tract symptoms, hematospermia, and persistent urethral discharge. Materials and Methods: A pelvic MRI was obtained in workup of the above issues and identified a complex ejaculatory duct cyst. The patient consented for Holmium Laser Incision of Ejaculatory Duct. A holmium laser fiber was used through a 24F rigid cystoscope to unroof the ejaculatory duct cyst, resulting in the drainage of a dark brown fluid. Following unroofing of the cyst, the ejaculatory ducts were identified using a 17F rigid cystoscope and a 16F Foley catheter was inserted. Results: The Foley catheter was removed on POD1, and the patient was able to void. His symptoms improved progressively with time and antibiotics. A repeat MRI was obtained several months postoperatively and showed the resolution of the cystic lesion. Conclusion: Holmium Laser Incision of Ejaculatory Duct is safe and feasible procedure allowing to treat ejaculatory duct obstruction without increased risk of complications.

Management of Anterior Urethral Stricture: A Survey of Contemporary Practice of Iranian Urologists.

To evaluate Iranian urologists' approach to urethral stricture and assess how often they select open urethroplasty over minimally invasive procedures. This cross-sectional observational study was conducted via www. porsline.ir among members of the Iranian urologists' community. The urologists were contacted via email and social media applications (e.g., WhatsApp, Telegram), and data, including their demographic information and years of practice, as well as questions related to their attitude towards the management of urethral stricture, were collected. A total number of 376 patients were included in the current survey. The specialty of reconstructive urology was selected by less than 2% (n=5) as their field of interest. Only 6.64% (n=25) of the urologists stated that they received adequate training for management of urethral stricture. Only about 5% (n=19), believed that according to scientific resources, chose open urethroplasty as the initial management. Almost 94% (n=353) did not perform any urethroplasties during the past year and about 0.2% (n=2) performed more than 20 open urethroplasties. For diagnosing urethral stricture, almost 99% of them chose RUG+VCUG, 72% chose urethrocystoscopy, and 69% chose uroflowmetry in the third place. For evaluation of urethroplasty postoperative outcomes, 76% (n=269) used RUG+VCUG, 15% (n=56) used Rigid Cystoscopy, and 8% (n=29) used Flexible Cystoscopy, Conclusion: Iranian urologists prefer minimally invasive procedures for treating urethral stricture, similar to other countries. This lack of urologists' interest in open urethroplasty is greatly due to poor training during the residency years and little experience with urethral strictures. Therefore, further considerations in order to improve urologists' knowledge and expertise for management of urethral stricture is recommended.

Receiver operating characteristics of computed tomography (CT) compared to cystoscopy in diagnosis of canine ectopic ureters: Thirty-five cases.

The aim of the study was to determine receiver operating characteristics (ROC) of computed tomographic excretory urography (CTEU) in predicting cystoscopic findings of ureteral anatomy. Retrospective cohort study. Thirty-five client-owned dogs. The medical records of dogs referred for suspected ectopic ureters were reviewed. Inclusion criteria included CTEU findings reported by board-certified radiologists, followed by rigid cystoscopy with or without ureteral cystoscopic laser ablation (CLA). Data included signalment, urinary incontinence degree, body condition score, weight, degree of colon distension, CTEU and cystoscopy findings. ROC analysis was used to compare CT-predicted ureteral orthotopia/ectopia to cystoscopy findings. Additionally, ROC of CT predicted ureteral orifice locations was analyzed. Regression covariate analysis was performed to identify factors that may have influenced accuracy of diagnosis. The ability of CT to identify a normal and intra-or extramural ectopic ureters conclusively and correctly was 13/26 (50%) and 32/41(78%), respectively. Sensitivity and specificity of identifying extramural versus intramural ureters was 2/7 versus 30/46 (29 vs. 65%) and 61/63 versus 17/24 (97 vs. 71%), respectively. Ectopic orifice determination sensitivity and specificity varied widely depending on location from 0% to 76% and 67% to 97%, respectively. Covariate analysis failed to identify interfering factors. CT did not accurately predict anatomy of ureters; CT findings may need confirmation by cystoscopy and possibly intraoperative fluoroscopy prior to determining if CLA is indicated or not. Our results may be of importance for surgeons interpreting the CTEU findings. CTEU prediction of the location of the ureteral orifice shows low sensitivity especially in or close to the urethral sphincter area.

The Effect of Penile Block Application on Pain Control in Cystoscopy

Cystoscopy is a very effective diagnostic and follow-up method used during many urological procedures. Although the pain has decreased with the frequent use of the flexible cystoscope recently, it is a really uncomfortable method for some patients. In this study, we aimed to investigate the effect of penile block application on pain control during cystoscopy. In this study, the files of 157 male patients who underwent rigid cystoscopy for various reasons between March 2017 and June 2019 were retrospectively scanned. The patients were divided into two groups; those who underwent penile block and those who did not. A visual analog scale was used in all patients to evaluate pain levels. Group I contained 87 and Group II contained 70 patients. The mean pain score in Group I was higher (4.40±0.782) than that in Group II (1.84±0.681) this difference was statistically significant (p=0.032). The use of urethral lidocaine along with penile block has been shown to minimize pain during cystoscopy and increase the tolerability of this procedure.

Breakage and detachment of the rigid cystoscope's distal tip: an unusual case of urological instrument malfunction.

Herein, we describe an unusual case of cystoscope damage during a planned laser cystolithotripsy in a 65-year-old male with a previous history of radical prostatectomy for prostate cancer and subsequent serial urethral dilations for bladder neck contracture. Upon crossing the penile urethra without exerting significant pressure, we noticed the cystoscope's distal metallic tip detachment. Therefore, we re-introduced another 22Fr cystoscope and removed the broken part with alligator forceps. Fortunately, no urethral injury or associated complications were noticed on gently re-entering the bladder. Hence, we managed to complete the endoscopic laser cystolithotripsy shortly thereafter. Review of the relevant literature revealed three similar cases. All related to the same manufacturer. Urologists should not lose sight of the fact that such an unexpected instance may tremendously impact the procedure's success, requiring vigilance and adherence to safety protocols.

Nephrectomy indications in kidney diseases: 10-years’ experience study

Background. Nephrectomy, a performance surgery in urology practice, may lead to an irreversibly kidney injuries during surgical removal. This study aims to describe 10-years of experience with nephrectomy, its indications and complications in kidney diseases. Materials and methods. Data for all the patients who underwent nephrectomy were collected including demographics, age, sex, education, smoking, alcohol consumption, aetiology, past medical and surgical history and comorbidity. Indications for nephrectomy were stones, obstruction, tumors, pyelonephritis and autosomal dominant polycystic kidney disease. Among complications, thrombocytopenia, fever, hyperkalemia, hypertension, ileus, pneumonia, pneumothorax, septic shock, surgical site infection, hyperglycemia, bleeding and postoperative nausea and vomiting were recorded. Preoperative preparation included laboratory tests such as complete blood count, renal function test and liver function test. It is reasonable to perform renoscintography before nephrectomy to consider partial nephrectomy. However, in our study we performed it routinely because nearly all patients underwent ultrasonography or/and computed tomography scan of abdomen/pelvis to detect pathologies. A percutaneous polyurethane catheters or stents were placed. A guidewire was inserted into the kidney via the rigid cystoscope. Results. A total of 50 nephrectomies were performed. The median age of patients was 45 years ranging from 14 to 73 years. About 60 % of the patients were females and 40 % were males. Patients were educated (48 %), smoking (56 %), alcoholic (12 %), with past medical and surgical history (50 %), comorbidities (46 %) and lived in rural region (44 %) and urban areas (56 %). Stones and obstruction accounted for the majority of cases, 52 and 36 %, respectively. Most of the nephrectomies were performed with laparoscopic approach (58 %). Open surgery was done in 15 cases (30 %) because of adhesions and emphysema. Complications related to laparoscopy and open surgery occurred in 17 (34 %) of patients. Thrombocytopenia, fever, hyperkalemia, hypertension, ileus, pneumonia, pneumothorax, septic shock, surgical site infection, hyperglycemia, bleeding and postoperative nausea and vomiting were recorded. Conclusions. Stone disease and obstruction were the most common benign conditions requiring nephrectomy. The laparoscopic approach can be feasible for most benign kidney diseases requiring nephrectomies with adequate expertise. Сomplication rate in it is comparable with that of open surgery.

Efficacy of inhalation of a nitrous oxide and oxygen mixture for pain management during rigid cystoscopy: a randomized controlled trial

Objective: To evaluate the efficacy of pain management using inhalation of a nitrous oxide and oxygen mixture during rigid cystoscopy. Materials and Methods: A total of 55 patients were prospectively selected and randomized to receive oxygen (27) or Entonox (28). Both groups were given the respective gas for 3 minutes via breath-activated facemask before cystoscopy and continued to breathe the gas until the end of the procedure. The oxygen and Entonox groups received 20 ml 2% lidocaine gel intraurethral 15 minutes before the procedure. Heart rate, and numeric pain rating scales were recorded before, during, and after the cystoscopy. Results: Fifty-five patients were randomized into two groups, 27 were given oxygen and 28 Entonox. There were no statistically significant differences between the groups in terms of baseline patient characteristics. Intraoperative rigid cystoscopy pain scores were significantly lower in the Entonox group than in the oxygen group (2.4 vs 4.2, p = 0.009). There were no significant differences between the two groups as regards postoperative pain, intraoperative and post-operative heart rates, and side effects. Conclusion: Entonox significantly reduces intraoperative cystoscopy-related pain, without significant complications.

Urethral Sheath to Evacuate Blood Clots through Mitrofanoff Appendicovesicostomy

Background: the Mitrofanoff appendicovesicostomy provides a catheterizable submucosal tunnel between umbilicus and bladder (or neobladder). In patients with a closed bladder neck, the Mitrofanoff channel is the only way to access the bladder. We describe our case of a 17 year-old girl with a Mitrofanoff appendicovesicostomy and a previous surgical closure of the bladder neck and who developed a large bladder clot due to hematuria after a surgical cystolithotomy in an augmented bladder; Methods: after an unsuccessful trans-appendicovesicostomy bladder washing, the endoscopic evaluation was performed using a 14 Ch rigid cystoscope and surrounded by its own urethral sheath. The clot was progressively fragmented through the cystoscope under direct vision. Clot fragments were aspirated to obtain a complete evacuation; Results: the urethral sheath prevented damages to the appendicovesicostomy, allowing at the same time repeated accesses of the cystoscope into the neobladder and ensuring the procedural success. The postoperative period was uneventful, and the neobladder catheter was removed after two days. Neither channel stenosis nor anastomosis dehiscence nor incontinence were reported after five months; Conclusions: the use of urethral sheath 14 Ch through an appendicovesicostomy preserves both the stoma and the channel, making possible endoscopic procedures such as blood clot evacuation into the neobladder.

Effect of intraurethral instillation of cooled versus room temperature lignocaine gel on pain perception during outpatient rigid cystoscopy

Background: Reducing temperature of topically applied lignocaine gel for maximal anesthesia during cystoscopy in conscious patients have yielded mixed results. This prospective randomised controlled study was undertaken to compare pain mitigating effect of lignocaine gel at 4°C versus at room temperature during rigid cystoscopy in male patients. Methods: The study consists of 126 consecutive patients (n=126) who were randomly assigned into two groups: Group 1 (control, n1=63) received 2% topical lignocaine at room temperature, Group 2 (L4, n2=63) received topical lignocaine cooled to 4°C prior to insertion of rigid cystoscope. Pain during instillation of lignocaine and during performance of rigid cystoscopy was measured by independent evaluator on non-graphical 100-mm visual analogue scale (VAS). Results: Mean pain score for cystoscopy in L4 was lower (46.69±10.38) than that in CONTROL (49.19±12.47), this difference was statistically not significant (p value, one tail =0.11, >0.05). Mean pain score for instillation in L4 was 14.80±6.00 and that for control was higher at 17.04±6.54 with difference in pain scores being statistically significant (p value, one tail =0.02, <0.05). Conclusions: With regard to reducing pain perception during rigid cystoscopy, cooled lignocaine gel at 4°C has no benefit over room temperature lignocaine gel, however cooling lignocaine gel to 4ºC does significantly decrease pain of instillation of gel into urethra.

Microscopic hematuria and pelvic ultrasonography could rule out flexible cystoscopy during surveillance for T1-low grade non-muscle invasive bladder cancer

ABSTRACT Purpose Cystoscopy (rigid/flexible [FC]) is the standard surveillance tool for non-muscle invasive bladder cancer (NMIBC). Nevertheless, it has its drawbacks. The objective of this study is to evaluate the performance of microscopic hematuria (MH), abdominal ultrasonography (US), and urine cytology (UC) as potential substitutes for FC in patients with T1-low-grade (T1-LG) NMIBC. Methods Over a 12-month period, patients attending our tertiary referral center for T1-LG NMIBC follow-up underwent urine analysis for MH and UC, and then US and FC were performed as outpatient surveillance procedures. Those with positive findings underwent inpatient rigid cystoscopy under anesthesia and biopsy. The negative predictive values (NPV) and sensitivity of different combinations of MH, UC, US, and FC were compared with the standard histopathology. Results In 218 evaluated patients, FC had the highest NPV (97.9%). However, this figure showed no statistically significant difference if compared with the combination of negative MH and US (93.8%) (difference = 0.04, p = 0.1) or the combination of MH, US, and UC (94.9%) (difference = 0.03, p = 0.2). The reported sensitivity results were similarly comparable between FC (94.2%) and the aforementioned combinations (90.4% and 92.3%; differences: 0.038 and 0.019; p = 0.4 and 0.7, respectively). Conclusions During the surveillance of NMIBC for patients diagnosed with T1-LG disease, the combination of MH/US has comparable sensitivity and NPV with FC. This non-invasive combination could be considered the first station that might preclude the need for FC in a considerable percentage of this group of patients.

Vaginoscopy With Laser Treatment of Symptomatic Upper Vaginal Mesh Exposure After Prior Mesh Sacrocolpopexy

ObjectiveTo describe the technique of vaginoscopy with Holmium:YAG and Thulium laser treatment of upper vaginal mesh exposure after mesh sacrocolpopexy (MSC) as well as evaluate treatment efficacy. MethodsFollowing IRB approval, a chart review of all patients who underwent laser treatment of upper vaginal mesh exposure during vaginoscopy at a single institution between 2013 and 2022 was performed. Demographic information, previous mesh placement history, presenting symptoms, physical examination and vaginoscopy findings, imaging, laser type and settings, operating time, complications, and follow-up including examination and office vaginoscopy findings were extracted from electronic medical records. ResultsFive patients and 6 surgical encounters were identified. All patients had a history of MSC and symptomatic mesh exposure at the vaginal apex, which was tented up and difficult to access by traditional transvaginal mesh excision. Five patients underwent vaginal mesh treatment with laser with no further vaginal mesh exposure on follow-up exam or vaginoscopy. One patient was found to have a small recurrence at 4 months and underwent a second treatment with negative findings on vaginoscopy 7.9 months post-operatively. There were no complications. ConclusionVaginoscopy using a rigid cystoscope and laser treatment of upper vaginal mesh exposure using a Holmium:YAG or Thulium laser is a safe and quick method which led to definitive symptom resolution.

Management of complex urethral stricture in public health facilities in developing nations in the 21st century

Management of complex urethral stricture in public health facilities in developing nations in the 21^st century

Efficacy of outpatient surveillance in post-intravesical BCG management of high-risk bladder cancer

Background: Intravesical Bacillus Calmette–Guérin (BCG) instillation is an established form of immunotherapy for intermediate and high-risk bladder cancers. Mandatory cystoscopic surveillance is commonly performed under general anaesthesia (GA) to facilitate biopsy or other procedures. However, it is resource-intensive with unclear clinical benefit. Methods and patients: We performed a two-cycle audit, before and after changing post-BCG surveillance policy, from GA cystoscopy to local anaesthetic flexible cystoscopy (LAFC) on trans urethral laser ablation (TULA) lists, where patients may undergo a tumour biopsy or laser ablation. In the first cycle, we audited 53 patients undergoing 114 post-BCG rigid cystoscopies from January 2018 to December 2019. In the second cycle, there were 56 patients undergoing 99 post-BCG LAFCs on TULA lists in 2020. Results: In the first audit cycle cohort, the mean patient age was 72.29 ± 8.98 years and 48 were men; malignant histology was identified only on five occasions (three grade progressions). Fourteen patients required overnight admission. In the second audit cycle cohort, the mean patient age was 70.44 ± 9.17 years and 47 were men. Four had a grade progression, while another a stage progression. Out of 99 LAFCs, 47 confirmed normal bladder appearance. A biopsy was taken during other 52 cystoscopies: 17 (33%) confirmed malignancy. Fifteen patients showed findings that were labelled as recurrence, but only two required a further GA procedure to deal with recurrence. One patient was admitted for post-procedure bleeding, which settled with irrigation. Conclusion: Local anaesthetic TULA procedure is a safe and effective alternative for a GA rigid cystoscopy to survey bladders of patients on intravesical BCG therapy. Level of evidence: 3

The use of blue-light cystoscopy in the detection and surveillance of nonmuscle invasive bladder cancer.

Nonmuscle invasive bladder cancer is associated with a high risk of recurrence as well as progression to muscle-invasive disease. Therefore, adequate visualization and identification of malignant lesions as well as complete resection are critical. Traditional white-light cystoscopy is limited in its ability to detect bladder cancer, specifically carcinoma in situ. Blue-light cystoscopy makes use of the intravesical instillation of a heme precursor to differentiate areas of malignancy from normal tissue. A narrative review of the literature on the use of blue-light cystoscopy in bladder cancer was conducted. Blue-light cystoscopy has been shown in several randomized clinical trials to increase detection of Ta, T1, and carcinoma in situ, as well as reduce risk of recurrence at 12 months as compared with traditional white-light cystoscopy. Research into the effects of blue-light cystoscopy on risk of disease progression has produced mixed results, in part due to changing definitions of progression. However, more recent research suggests a correlation with decreased risk of progression. Whereas the use of blue-light was initially limited to rigid cystoscopy in the operating room, results from a recent randomized clinical trial showing enhanced detection of recurrent disease using blue-light in-office surveillance flexible cystoscopy have led to expanded Food and Drug Administration approval. Overall, blue-light cystoscopy offers promise as an enhancement to white-light cystoscopy for the detection of nonmuscle invasive bladder cancer and may yield additional benefits in reducing disease recurrence and progression. Further prospective research is needed to evaluate the true benefit of blue-light cystoscopy in terms of disease progression as well as the cost-effectiveness of this technique.

541 Pre-Operative Assessment of Patients Undergoing Elective TURBT or Rigid Cystoscopy + Bladder Biopsy: Is a Group & Save Clinically Required?

AimGroup & Save (G&S) is conducted prior to Transurethral Resection of Bladder Tumour (TURBT) or Rigid Cystoscopy + Bladder Biopsy (BB) during pre-operative assessment (PoA). Each G&S costs £7.54 and 2 samples are required. The aim of this audit was to determine whether G&S is clinically required for these two procedures.MethodThis two-cycle audit reviewed the PoA components of patients undergoing TURBT or BB over a 6month period prior to the COVID-19 pandemic (July-Dec2019), in which PoA were face-to-face, and a subsequent re-audit during telephone PoA (July-Dec2020), where it was deemed unnecessary to have a G&S.Results 1st Cycle: 64 patients were included, 32.8%(21/64) had a preoperative G&S. 98.4%(63/64) had Hb measured. Mean Hb was 131.56 (79 – 165) g/l. 25%(16/64) were on anti-coagulants, of which 50%(8/16) were continued. No patients required a peri or post-operative blood transfusion. 2nd Cycle: 48 patients were included and 6.25%(3/48) had a G&S within the 1 month preceding their operation. 70.8%(34/48) had their Hb measured, with mean Hb being 135.18 (86 – 168) g/l. 22.9%(11/48) were on anticoagulants, of which 36%(4/11) were continued. There were no complications requiring a blood transfusion.ConclusionsWe found no requirement of blood transfusions following TURBT or BB, therefore routine G&S is not clinically indicated for this series. This reflects departmental savings of £964 over 6months (based on 64 cases). In addition, a relationship between continuing anti-coagulation or a low Hb and post-operative transfusion was not observed.

Bacterial Colonization in Double J Stent and Bacteriuria in Post-Renal Transplant Patients.

Background and objectiveUrinary tract infections (UTI) in kidney transplant recipients can cause significant morbidity and negatively impact both, graft and patient survival. Ureteric stenting in renal transplantation is aimed at reducing the risks of complications like ureteric leak and stenosis. Ureteric stents are not without their potential complications which may include UTI. We aimed to compare urine bacteriology and bacterial colonization of DJ stent following kidney transplantation, and to establish antimicrobial susceptibility to guide the choice of empirical antibiotics in the event of UTI in post-transplant patients with DJ stent.Materials and methodsThis was a prospective study carried out over a year period (February 2020 to January 2021). Eighty post-renal transplant patients with indwelling ureteral stents were recruited for the study. An early morning midstream urine sample was taken for analysis from consenting patients that met the inclusion criteria. All stents were removed via rigid cystoscopy and the distal end of the stent (4cm) was cut off and put in a sterile bottle for microbiological analysis. Sensitivity and resistance were tested against a panel of 19 antibiotics on all microbial isolates. Results were considered statistically significant when p < 0.05.ResultsThe mean age of the patients was 47.9+ 12.1 years. Male patients were 60 (75%) while 20 (25%) were females. Fifty-one (52%) patients had hypertension while 25 (26%) had diabetes mellitus. Hypertension and diabetes were noted in 20 (21%) patients while only one patient (1%) had HCV. Prior to renal transplantation, patients had negative urine cultures. The majority of the patients (76, 95%) had their stent retrieved after 4 weeks, 2 (2.5%) of them had stents retrieved after 2 weeks, and 2 (2.5%) had stents retrieved after 8 weeks. There was a significant association between the duration of stent and stent colonization (p=0.031).No organism was cultured in both the urine and stent in 13 (14.4%) patients. Nine (10%) had positive stent culture with a negative urine culture while 5 (5.6%) had positive urine culture with a negative stent culture. The same organism was noted in both urine and stent in 58 (64.4%) of patients while different organisms were cultured in 5 (5.6%) of the patients. Escherichia coli was the most common organism cultured in the urine of 38 (65.5%) patients and 36 (58.1%) stents, respectively.The sensitivity pattern shows that the organisms were more susceptible to nitrofurantoin and gentamicin, and resistant to tetracycline and ceftriaxone. Tigecycline showed good susceptibility and poor resistance.ConclusionThis study shows that stent colonization was slightly higher than urine bacteriology, with both demonstrating similar microbiological patterns. Selection of the initial empiric treatment should be based on local epidemiological data. Initial therapy should be de-escalated to the most narrow-spectrum antibiotics to complete the course of therapy once culture and sensitivity data is available. Antibiotics stewardship will help in reducing the trend of MDR pathogens.

O036 Does Cxbladder accurately exclude bladder urothelial cell malignancy on diagnostic and surveillance cystoscopy? a prospective multi-centre study

Abstract Introduction and Objectives Health systems incur significant costs from bladder cancer. Diagnostic and surveillance protocols are intensive. Urine cytology and Computed tomography (CT) have low sensitivity as screening and surveillance tools. Cxbladder is a non-invasive urinary biomarker approved for use in Australia, with high reported sensitivity in bladder cancer detection. The purpose of this study was to determine the accuracy of Cxbladder as a screening and surveillance tool in patients with suspected and established bladder cancer, respectively. Methods A prospective trial (88 participants) was performed at Gosford and North Gosford Hospitals (New South Wales, Australia). Inclusion criteria were: patients undergoing investigation for macroscopic haematuria or bladder cancer surveillance. Patients were asked to perform a Cxbladder test prior to either flexible or rigid cystoscopy. Exclusion criteria were: patients aged &amp;lt; 18 years, or patients that had undergone transurethral resection of the bladder within five months. Testing kits were supplied at no cost by Pacific Edge Ltd. Cxbladder results were then compared with cystoscopic findings, the prevailing gold-standard for bladder cancer diagnosis. Results Sensitivity and specificity of Cxbladder for detection of bladder cancer were 76.5% and 45.1% respectively. Positive and negative predictive values (PPV/NPV) were 31.7% and 85% respectively. False negative cases comprised low-grade papillary tumours only. Cxbladder had 100% NPV in detection of high-risk bladder cancer. Conclusion There is evidence to support Cxbladder as a screening tool in the detection of high-risk bladder cancer. Further studies involving larger populations are required to validate its accuracy. Take-home message The purpose of this study was to determine the accuracy of Cxbladder as a screening and surveillance tool in patients with suspected and established bladder cancer, respectively. Sensitivity and specificity of Cxbladder for detection of bladder cancer were 76.5% and 45.1% respectively, whilst a 100% negative predictive value was obtained in detection of high-risk bladder cancer.