Comparative assessment of biodegradable-antireflux heparine coated ureteral stent: animal model study

Abstract Background Double J ureteral stents are widely used on urological patients to provide drainage of the upper urinary tract. Unfourtunately, ureteral stents are not free from complications, as bacterial colonization and require a second procedure for removal. The purpose of the current comparative experimental study is to evaluate a new heparin-coated biodegradable antireflux ureteral stent (BraidStent®-H) to prevent urinary bacterial colonization. Methods A total of 24 female pigs were underwent determination of bacteriuria and nephrosonographic, endoscopic and contrast fluoroscopy assessment of the urinary tract. Afterward, were randomly assigned animals to Group-I, in which a 5Fr double-pigtail ureteral stent was placed for 6 weeks, or Group-II, in which a BraidStent®-H was placed. Follow-up assessments were performed at 1, 3, 6, 8, 12 weeks. The final follow-up includes the above methods and an exhaustive pathological study of the urinary tract was accomplished after 20 weeks. Results Bacteriuria findings in the first 48 h were significant between groups at 6 h and 12 h. Asymptomatic bacteriuria does not reach 100% of the animals in Group-II until 48 h versus Group-I where it appears at 6 h. The weekly bacteriuria mean rate was 27.7% and 44.4% in Group I and II respectively, without statistical significance. In Group II there were no animals with vesicoureteral reflux, with statistical significance at 3 and 6 weeks with Group-I. The 91.2% of stents in Group-II were degraded between 3 and 6 weeks, without obstructive fragments. Distal ureteral peristalsis was maintained in 66.6–75% in Group-II at 1–6 weeks. Conclusions The heparin coating of BraidStent® allows an early decrease of bacterial colonization, but its effectiveness is low at the long term. Heparin coating did not affect scheduled degradation rate or size of stents fragments. BraidStent®-H avoids the side effects associated with current ureteral stents, thus should cause less discomfort to patients.

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Comparison of the effectiveness of antibacterial therapy regimens in the treatment of asymptomatic bacteriuria during pregnancy

HEALTH OF WOMAN ◽

10.15574/hw.2018.131.57 ◽

2018 ◽

pp. 57-60

Author(s):

T.G. Romanenko ◽

◽

O.M. Sulimenko ◽

Keyword(s):

Urinary Tract ◽

Side Effects ◽

Bacterial Infection ◽

Asymptomatic Bacteriuria ◽

Urine Specimen ◽

Cultural Research ◽

Group I ◽

Group Ii ◽

American Society ◽

Practical Recommendations

The objective: to evaluate the effectiveness of the proposed therapy in pregnant women with asymptomatic bacteriuria. Materials and methods. All patients were divided into two groups. І group – 38 patients received the course of amoxicillin with clavulanic acid 625 mg per os twice a day for 7 days, group II – 33 patients received D-mannose (1.2 g), powder of 5.8 g in a sachet 2 times a day for 7 days. Diagnostic criteria for asymptomatic bacteriuria were based on practical recommendations of the American Society of Infectious Diseases. Results. In the first cultural research of the urine specimen (immediately after the end of the course of therapy), the percentage of microorganism’s persistence in the urinary tract of a woman was determined, in case of its detection, an additional course of treatment was prescribed. In the second and subsequent control urine samples, the percentage of relapsing bacteriuria was determined. Percentage of the persistence of the pathogen in the urinary tract among the treated women with bacteriuria remained rather low – 10.5% (4 patients) in group I, but higher than in group II 3.1% (1 patient). The percentage of sterile first urine sample was high and probably did not differ between groups – 31 (81.6%) and 32 (96.9%) women respectively in I and II groups. In the first group, the percentage of relapses during gestation after the diagnosed and treated bacteriuria remained rather high and amounted to 23.7% (9 patients), and in the second group, the relapse was not recorded. Conclusions. The 7-day course of therapy with the D-mannose drug is associated with fewer cases of persistent pathogenic pathogens in urine, no recurrence of bacterial infection, and no side effects. Key words: asymptomatic bacteriuria, D-mannose, urinary tract, pregnancy.

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Comparison of Uncomfortable Loudness Level in Stapedotomy with or without Stapedial Tendon Preservation

Bangladesh Journal of Otorhinolaryngology ◽

10.3329/bjo.v27i2.56357 ◽

2021 ◽

Vol 27 (2) ◽

pp. 117-123

Author(s):

Tamanna Nawshin ◽

Kanu Lal Saha ◽

Shah Sohel ◽

Sabyasachi Talukdar ◽

Sheikh Mohammad Tanjil Ul Alam

Keyword(s):

Statistical Significance ◽

Pure Tone Audiometry ◽

Neck Surgery ◽

Categorical Variables ◽

Continuous Variables ◽

Chi Square ◽

Group I ◽

Loudness Level ◽

Group Ii

Background: Otosclerosis is one of the commonest diseases of the ear mostly involves the otic capsule. Most often otosclerotic foci appear in stapes region leading to stapes fixation, predominantly affect the adolescence female. The most common presenting symptom of clinical otosclerosis is conductive deafness. The mainstay of treatment for otosclerosis is surgery. Surgical options include stapedectomy, stapedotomy with or without stapedial tendon preservation. The latter being is the procedure of choice. Aim: The aim of this study is to compare the outcome of uncomfortable loudness level in stapedotomy with or without stapedial tendon preservation. Methods: A prospective observational study was conducted in the Department of Otolaryngology-Head & Neck Surgery, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka for 18 months in patients with otosclerosis. Total 30 subjects were selected based on the inclusion and exclusion criteria. All patients were assessed pre-operatively by clinical examination, otoscopy and microscopic examination. Hearing was assessed by pure tone audiometry. Uncomfortable level and stapedial reflex threshold were tested in all cases. The selected cases were placed into two groups. Stapedial tendon resection in Group-I and stapedial tendon preservation in Group-II. Post-operative follow up was done at 3 months and 6 months. Hearing and uncomfortable loudness level were evaluated with PTA during follow up by calculating the average of 500Hz, 1000Hz, 2000Hz and 4000HZ. The data were calculated manually. The statistical significance was set to P< 0.05. Results of the study were expressed as mean, standard deviation (± SD), frequency and percentages. Means and standard deviations were reported for continuous variables. Frequencies and percentages were reported for categorical variables. Unpaired Student’s t test was done to compare the continuous variables and Chi Square test was done to compare the categorical variables. Results: In this study preoperative average ABG for group I and group II were 35 ± 4.57 dB and 34 ± 4.17 dB respectively. In group I, post operative average ABG after 3 months and 6 months were 14 ± 3.7 dB and 13±3.3 dB respectively. Post operative average ABG after 3 months was 13 ± 5.7 dB and was 12 ± 4.4 dB for group II. But the hearing improvement between two groups was not statistically significant. In case of preoperative mean UCL was 95 ± 1.8 dB and 96 ± 2.5 dB for group I and group II respectively. Postoperative mean UCL after 3 months was 96 ± 3.57 dB and after 6 months was 99 ± 6.28 dB in group I. For group II, postoperative mean UCL after 3 months and 6 months was 107±4.2 dB and 113 ± 3.2 dB respectively. Here mean UCL was on average 11 dB higher for group II in 3 months and additional 6 dB improvement noted after 6 months, but show minimal change in group I. This finding was statistically significant. Conclusion: Preservation of the stapedial tendon is the choice in the surgical treatment of otosclerosis which helps to improve functional outcomes as well as to provide the more physiologic protection of middle ear. Postoperative discomfort threshold levels were increased in patients who had their stapedial tendon restored. Bangladesh J Otorhinolaryngol 2021; 27(2): 117-123

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Intrastromal corneal ring segment implantation in paracentral keratoconus with perpendicular topographic astigmatism and comatic axis

European Journal of Ophthalmology ◽

10.1177/1120672120952346 ◽

2020 ◽

pp. 112067212095234

Author(s):

Luis Fernández-Vega-Cueto ◽

Carlos Lisa ◽

Belén Alfonso-Bartolozzi ◽

David Madrid-Costa ◽

José F Alfonso

Keyword(s):

Statistical Significance ◽

Arc Length ◽

Refractive Outcomes ◽

Group I ◽

Intrastromal Corneal Ring ◽

Before And After ◽

Ring Segment ◽

Group Ii ◽

Topographic Astigmatism

Purpose: To evaluate the outcomes of implanting intrastromal corneal ring segment (ICRS) using two different strategies in a specific paracentral keratoconus phenotype. Methods: Eighty-nine eyes with paracentral keratoconus with perpendicular topographic astigmatism and comatic axes were evaluated before and after implanting a 150° arc-length ICRS. Patients were divided into two groups according to the axis where the ICRS was implanted: Group I: comatic axis and Group II: flat topographic axis. Uncorrected (UDVA) and corrected (CDVA) distance visual acuities, refractive errors, and root mean square (RMS) for coma-like aberration were recorded. The postoperative follow-up was 1 year. Results: Mean UDVA (logMAR) changed from 0.49 ± 0.37 preoperatively to 0.30 ± 0.32 6 months afterwards ( p < 0.001) in the group I and from 0.53 ± 0.34 to 0.37 ± 0.35 ( p < 0.001), in the group II. Mean CDVA in group I changed from 0.11 ± 0.18 preoperatively to 0.06 ± 0.14 6 months after surgery ( p < 0.001). In group II the improvement did not reach statistical significance (from 0.09 ± 0.10 to 0.07 ± 0.09; p = 0.06). No eyes lost lines of CDVA in group I. Eight eyes (15.7%) lost lines of CDVA in group II. The spherical equivalent decreased after surgery in both groups ( p < 0.001). The RMS for corneal coma-like aberration only decreased in the group I ( p < 0.001). Conclusion: Both strategies provided safe and effective visual and refractive outcomes in the specific keratoconus phenotype analyzed. The orthopedic strategy provided better visual outcomes than the refractive one.

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Comparative Assessment of Autogenous Cancellous Bone Graft and Bovine-Derived Demineralized Bone Matrix for Secondary Alveolar Bone Grafting in Patients With Unilateral Cleft Lip and Palate

The Cleft Palate-Craniofacial Journal ◽

10.1177/10556656211025197 ◽

2021 ◽

pp. 105566562110251

Author(s):

Vijay Kumar ◽

Vidya Rattan ◽

Sachin Rai ◽

Satinder Pal Singh ◽

Jai Kumar Mahajan

Keyword(s):

Bone Graft ◽

Iliac Crest ◽

Demineralized Bone Matrix ◽

Bone Matrix ◽

Volumetric Analysis ◽

Group I ◽

Alveolar Bone Grafting ◽

Group Ii ◽

Demineralized Bone

Objective: Comparison between bovine-derived demineralized bone matrix (DMBM) and iliac crest graft over long term for secondary alveolar bone grafting (SABG) in patients with unilateral cleft lip and palate (UCLP) in terms of radiological and clinical outcomes. Design: Prospective, randomized, parallel groups, double-blind, controlled trial. Setting: Unit of Oral and Maxillofacial Surgery, Oral Health Science Centre, Postgraduate Institute of Medical Education & Research, Chandigarh. Participants: Twenty patients with UCLP. Interventions: Patients were allocated into group I (Iliac crest bone graft) and group II (DMBM) for SABG. Outcomes were assessed at 2 weeks, 6 months, and then after mean follow-up period of 63 months. Outcomes Measures: Volumetric analysis of the grafted bone in the alveolar cleft site was done through cone beam computed tomography using Cavalieri principle and modified assessment tool. Clinical assessment was performed in terms of pain, swelling, duration of hospital stay, cost of surgery, alar base symmetry, and donor site morbidity associated with iliac crest harvesting. Results: Volumetric analysis through Cavalieri principle revealed comparable bone uptake at follow-up of 6 months between group I (70%) and group II (69%). Modified assessment tool showed no significant difference between horizontal and vertical bone scores over short- and long-term follow-up. In group II, there was higher cost of surgery, but no donor site morbidity unlike group I. Conclusions: Demineralized bone matrix proved analogous to iliac crest bone graft as per volumetric analysis over shorter period. However, although statistically insignificant, net bone volume achieved was lower than the iliac crest graft at longer follow-up.

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Platelet rich plasma versus extracorporeal shock wave therapy in patients with non-calcific supraspinatous tears

Egyptian Rheumatology and Rehabilitation ◽

10.1186/s43166-020-00020-7 ◽

2020 ◽

Vol 47 (1) ◽

Author(s):

Samah M. Alian ◽

Rabab S. Zaghlol ◽

Sahar S. Khalil

Keyword(s):

Shock Wave ◽

Outcome Measures ◽

Platelet Rich Plasma ◽

Extracorporeal Shock Wave Therapy ◽

Shock Wave Therapy ◽

Tendon Tear ◽

Extracorporeal Shock Wave ◽

Group I ◽

Group Ii

Abstract Background To compare the clinical efficacy of platelet rich plasma (PRP) subacromial injection and extracorporeal shock wave therapy (ESWT) on refractory non-calcific partial thickness supraspinatous tendon tear. Results Significant improvement in all outcome measures achieved in both groups at 4 weeks follow-up period (the end of treatment course) (P< 0.05). At 12 weeks follow-up period, group I, showed significant improvement in all outcome measures compared to baseline and group II; however, in group II, there was no significant difference compared to baseline; moreover, deterioration in the previous improvement was noticed. Conclusion Both PRP (group I) and ESWT (group II) are effective therapeutic methods in the management of refractory non-calcific partial thickness supraspinatous tendon tear; however, PRP (group I) has better long-term effects on both pain and function.

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RECURRENCE RATE AFTER REPEAT TRANSURETHRAL RESECTION AMONG PATIENTS WITH NEWLY DIAGNOSED T1 BLADDER CANCER

10.36106/ijar/7213765 ◽

2021 ◽

pp. 51-54

Author(s):

Md. Shafiqur Rahman ◽

Sanjeeb Bhakta Bista ◽

Md. Sayedul Islam ◽

A. S. M. Shafiul Azam ◽

Md. Shamim Hossain ◽

...

Keyword(s):

Bladder Cancer ◽

Recurrence Rate ◽

Transurethral Resection ◽

Tumor Recurrence ◽

Controlled Trial ◽

Intravesical Therapy ◽

Newly Diagnosed ◽

Group I ◽

Group Ii

Background: Transurethral resection of the bladder tumor (TURBT) is the cornerstone of diagnosis and TURBT followed by selective adjuvant intravesical chemotherapy or immunotherapy is the gold standard of treatment for the patients with non-muscle invasive bladder cancer (NMIBC). Even after complete resection of the tumor there is high risk of residual tumor and subsequent recurrence and progression of the disease. The recurrence of T1 tumor is found to be around 71 % within 5 years and High grade T1 lesions recur in more than 80% of the cases and progress in 50% of the patients within 3 years. Disease status at 3 months after initial resection is an important predictor of subsequent recurrence and progression. To assess the tumor recurrence rat Objective: e among patients with newly diagnosed T1 bladder cancer between repeat transurethral resection group and single TURBT group. Ra Type of study: ndomized controlled trial. Place of study: Department of urology, BSMMU, Dhaka, Bangladesh. This Randomi Materials And Methods: zed Controlled Trial was conducted in urology department of BSMMU, Dhaka, Bangladesh from February 2017 till September 2018. A total of 50 patients, diagnosed as a case of T1 bladder cancer and who fulll the selection criteria were randomly divided in two groups consisting of 25 patients in each group. After informed consent, repeat TUR was done after 4 weeks of the initial TURBT for only 22 patients in group I since 3 of the patients did not show up on the scheduled date of surgery. Whereas, repeat TUR was not done for other 25 patients in group II. All the patients in both the groups were further treated with intravesical therapy according to the histopathological report. The patients in both the groups were followed up at 3 months and 6 months of the initial intervention where detailed history was taken, relevant investigations were done and check cystoscopy was done. TURBT was done for recurrent tumors. Out of 22 patients in group I, 2 patients were excluded for follow up on the basis of repeat TUR ndings. Whereas in group II, 2 patients missed the follow up and one of them missed the normal scheduled dose of intravesical therapy. Hence, 22 patients completed the study in group II. The baseline variables like age and Results: sex were similar in both the groups with higher male predominance. There was no statistical signicant difference in tumor characteristics such as size, number and grade of the tumor between the two groups. Out of 22 patients in group I who underwent repeat TUR at 4 weeks of initial TUR, residual disease was found in 8 (36.36%) patients. One of the patient was found to have T2 disease and 1 patient had CIS during repeat TUR. These 2 patients were not followed up since the treatment strategy changed after the results of repeat TUR. After 6 months of follow up of all the patients, 2 (10%) out of 20 patients in group I were found to have tumor recurrence however, in group II, 9 (40.9%) patients had tumor recurrence. The tumor recurrence rate between the two groups was found to be statistically signicant (p=0.023). In the light of ndings of this Conclusion: study, it can be concluded that performing repeat transurethral resection in patients with newly diagnosed T1 bladder cancer at 4 weeks of initial TURBT, helps to detect signicant number of residual tumor and reduce early recurrence rate of the tumor.

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Comparison of a PGA Sheet with a Commercial ePTFE Sheet as a Staple-Line Reinforcement in Lung Surgery

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.342-343.849 ◽

2007 ◽

Vol 342-343 ◽

pp. 849-852

Author(s):

Keon Hyeon Jo ◽

Seok Whan Moon ◽

Young Du Kim ◽

Young Jo Sa ◽

Si Young Choi ◽

...

Keyword(s):

Statistical Significance ◽

Polyglycolic Acid ◽

Lung Surgery ◽

Resection Margins ◽

Air Leakage ◽

Staple Line Reinforcement ◽

Group I ◽

Significant Difference ◽

Similar Threshold ◽

Group Ii

To prevent prolonged air leakage after lung surgery, we developed a biodegradable polyglycolic acid (PGA) sheet and compared it with an expanded polytetrafluoethylene (ePTFE). Eighteen adult mongrel dogs were used in this experiment. The airway pressures at which air first leaked at the stapled resection margins were measured immediately after surgery in group I (N=5), 2 days after surgery in group II (N=5), and 7 days after surgery in group IIII (N=5), Based on the presence of SLR, there were 3 subgroups in each group: there was no SLR in subgroup a; ePTFE in subgroup b; PGA sheet in subgroup c. The histologic examination was performed 2 months after surgery (N=3). In group I, there was a significant difference in air leakage pressures (mm Hg) between no reinforcement and SLR. We observed the same results in group II and III with statistical significance. However, there was no significant difference between the reinforcement groups. The histologic findings demonstrated more severe adhesions and biodegradation in the dogs in which the PGA sheet was used. Our PGA sheet was considered a useful reinforcement material, because it had a similar threshold for air leakage with the ePTFE with excellent biodegradation.

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Characteristics of bacterial colonization and urinary tract infection after indwelling of double-J ureteral stent

Urology ◽

10.1016/s0090-4295(03)00325-x ◽

2003 ◽

Vol 62 (2) ◽

pp. 214-217 ◽

Cited By ~ 77

Author(s):

Sung Hyun Paick ◽

Hyoung Keun Park ◽

Seung-June Oh ◽

Hyeon Hoe Kim

Keyword(s):

Urinary Tract Infection ◽

Urinary Tract ◽

Tract Infection ◽

Bacterial Colonization ◽

Ureteral Stent

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Good Operative Effects of Patellofemoral Arthroplasty Combined With the Tibial Tubercle Transfer for Isolated Patellofemoral Arthritis Patients With an Increased Tibial Tuberosity-Trochlear Groove Distance

10.21203/rs.3.rs-291693/v1 ◽

2021 ◽

Author(s):

Conglei Dong ◽

Chao Zhao ◽

Ming Li ◽

Huijun Kang ◽

Kang Piao ◽

...

Keyword(s):

Patellofemoral Joint ◽

Tibial Tuberosity ◽

Tibial Tubercle ◽

Trochlear Groove ◽

Patellofemoral Arthritis ◽

Patellofemoral Arthroplasty ◽

Group I ◽

Tibial Tubercle Transfer ◽

Group Ii

Abstract BackgroundThe objective of present study was to investigate the operative effect of patellofemoral arthroplasty combined with the tibial tubercle transfer for isolated patellofemoral arthritis patients with an increased tibial tuberosity-trochlear groove distance (>20mm). MethodsA prospective study was performed between November 2012 and December 2017. Finally, thirty-six cases, with a mean age of 61.1 ± 7.3 years, were admitted to our study. A total of 17 patients underwent patellofemoral arthroplasty combined with tibial tubercle transfer, and 19 patients underwent patellofemoral arthroplasty only. All eligible patients had CT scans preoperatively and at 12 months follow-up, to assess the stability of the patellofemoral joint on axial slices. In addition, the demographic and clinical features of all the patients were asked. Knee balance was assessed with the single leg stance test and timed get up and go, and functionality was evaluated with stair climbing test and the Western Ontario and McMaster Universities Osteoarthritis Index score. (P>0.05) ResultsPreoperatively, the data regarding the knee balance and functionality were not significantly different between the two Groups (P>0.05). Many measurements showed significant differences between the two groups at the last follow-up. Significant differences were seen in well-known measurements such as the SLST (Group I, 28.9 s (SD 7.5); Group II, 20.3 s (SD 5.9); p < 0.001), TGUG (Group I, 13.4 s (SD 3.2); Group II, 16.8 s (SD 3.1); p < 0.001), and SCT (Group I, 18.6 s (SD 6.8); Group II, 24.5 s (SD 8.7); p < 0.001). Additionally, the median WOMAC score was improved from 62.7 (SD 11.2) preoperatively to 25.7 (SD 8.2) one year postoperatively in Group I and from 64.1 (SD 10.7) to 36.2 (SD 9.7) in Group II, which were also significantly different between the groups. ConclusionsFor such special IPA patients with an increased TT-TG (>20mm), the combined operation of PFA combined with TTT can better restore the involutional relationship of patellofemoral joint and further improve the balance and function of knee joint.

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A Seven-year Follow-up Study of Patient Satisfaction with Three-implant-retained Mandibular Overdentures

Open Access Macedonian Journal of Medical Sciences ◽

10.3889/oamjms.2021.5896 ◽

2021 ◽

Vol 9 (D) ◽

pp. 103-107

Author(s):

Hisham Samir ElGabry

Keyword(s):

Long Term Results ◽

Complete Dentures ◽

Patients Satisfaction ◽

Follow Up Study ◽

Group I ◽

Significant Difference ◽

Male Patients ◽

Group Ii ◽

Anterior Mandible

PURPOSE: This study aimed to compare patients’ satisfaction with mandibular overdentures retained by three-splinted implants versus conventional complete denture wearers during a 7-year follow-up study period. MATERIALS AND METHODS: Thirty edentulous male patients (mean age: 60 years) were carefully selected and divided into two equal groups. All patients received a new set of complete dentures. Group I patients received three implants in the anterior mandible and were connected after 3 months with bars, clips, and loaded. Group II patients received conventional complete dentures. Patients’ satisfaction was recorded for both groups at 3 weeks (baseline) and after 1, 3, 5, and 7 years. Patients were then asked to grade their overdentures/dentures on a visual analog scale and written questionnaire to evaluate their overall satisfaction. RESULTS: Satisfaction scores of Group I patients were found to be statistically significantly higher than that of Group II patients (p < 0.05) at 3, 5, and 7 years follow-up, meanwhile, no statistically significant difference was found at baseline or after 12 months. CONCLUSION: The long-term results suggest that three-implant-retained mandibular overdenture with a clip-bar attachment appears to be a successful rehabilitation strategy which is superior to conventional dentures for patients with advanced ridge resorption.

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