Effect of dexpanthenol on wound healing in penile fracture model: An experimental study.

OBJECTIVES: In the present study, we aimed to investigate the effect of dexpanthenol on wound healing at the histopathological level on cavernous tissue. MATERIALS AND METHODS: Forty-four Wistar albino rats weighing 220-250 g were used. The rats were randomly divided into four groups as Group B, Group S, Group LD, and Group SD. In Group B, the incision was not repaired and left to secondary healing. In Group S, the incision line was repaired with 5/0 polyglactin suture. In Group LD, 0.25 mg/kg dexpanthenol was applied subcutaneously below the repaired wound region once a day during 14 days. In Group SD, 500 mg dexpanthenol was applied intraperitoneally once a day during 14 days. RESULTS: No fibrosis was observed in 8 (80%) rats in group SD. Fibrosis rates were significantly lower in Group SD compared to Group B, Group S, and Group LD (p = 0.013, p = 0.005, and p = 0.003, respectively). CONCLUSION: Systemic dexpanthenol administration significantly decreased fibrosis in penile fracture model on rats.

OBJETIVO: En el estudio actual nuestro objetivo fue investigar el efecto del dexpantenol en la cicatrización de heridas a nivel histopatológico en el tejido cavernoso. MÉTODOS: se utilizaron 44 ratas Wistar albinas con un peso de 220-250 g. Las ratas se dividieron aleatoriamente en 4 grupos como grupo B, grupo S, grupo LD y grupo SD. En el grupo B, la incisión no se reparó y se dejó para la cicatrización secundaria. En el grupo S, la línea de incisión se reparó con sutura de poliglactina 5/0. En el grupo LD, se aplicaron 0.25 mg/kg de dexpentanol por vía subcutánea debajo de la región de la herida reparada una vez al día durante 14 días. En el grupo SD se aplicaron 500 mg de dexpentanol por vía intraperitoneal una vez al día durante 14 días. RESULTADOS: No se observó fibrosis en 8 (80%) ratas del grupo SD. Las tasas de fibrosis fueron significativamente más bajas en el grupo SD en comparación con el grupo B, el grupo S y el grupo LD (todos p < 0.05). CONCLUSIÓN: La administración sistémica de dexpantenol disminuyó significativamente la fibrosis en el modelo de fractura de pene en ratas.

The effect of intraurethral hyaluronic acid on healing and fibrosis in rats with experimentally induced urethral trauma.

PURPOSE: To assess the efficacy of hyaluronic acid (HA) application after urethral trauma for preventing spongiofibrosis and inflammation in the early period. METHODS: A total of twenty-four rats were divided into 3 groups, with 8 rats in each. The urethra was traumatized with a 24 G needle sheath in all rats. Group 1 of rats were applied 0.9% saline solution twice a day, Group 2 were applied 0.9% saline solution and sodium HA 1% once a day, Group 3 were applied 1.0% HA twice a day. After 21 days, penectomy was performed in all rats. Inflammation, spongiofibrosis, hyperemia and edema in the urethra were investigated for each group. RESULTS: Histopathologic analysis revealed less fibrosis in both group 2 and group 3 compared to Group 1 (p = 0.004). There were no statistically significant differences among the groups in terms of inflammation, hyperemia, edema and congestion (p = 0.563, p = 0.069, p = 0.069, p = 0.068, respectively). Severe fibrosis was observed in 6 (75%) rats in Group 1, and in none of the rats of Group 2 or Group 3. With respect to spongiofibrosis compared to the control group, both Group 2 and Group 3 have statistically significant differences (p = 0.004). Moderate spongiofibrosis was observed in 5 (62.5%) rats in Group 2 and in 3 (37.5%) rats in Group 3. Statistically, there were no significant differences in respect of severity between Group 2 and Group 3 (p = 0.014). CONCLUSION: Intraurethral HA application after urethral trauma can decrease spongiofibrosis.

Histopathological effects of aloe vera on wound healing process in penile fracture model: an experimental study

Background/aim: This study assessed the histopathological effects of aloe vera (AV) on penile fractures (PF) formed experimentally in rat model. Materials and methods: Thirty-two Wistar adult male rats (220 to 250 g) were used. The PF model was created experimentally with a number 15 lancet. After the interventions, all of the rats were randomly and equally divided into 4 groups. In the first group, incision was not closed (group C). In the second group, AV was locally applied onto incision without suturing for 3 days (group AV). In the third group, the incision line was closed primarily (group PR). In the last group, AV was applied to primary repair region for 3 days (group PAV). All groups were compared to each other according to presence of fibrosis, inflammation, and hyperemia-bleeding. Results: Hyperemia and bleeding were seen in all groups with varying degrees and the difference between groups was insignificant (p = 1.000). According to inflammation, there was a significant difference between all groups (p = 0.031). No significant inflammation was observed in group AV and therefore, group AV had a better score than group PR (p = 0.026). In group PAV, inflammation was less seen than group PR, however, the difference was insignificant (p = 0.119). According to fibrosis, group AV and group PAV had same fibrosis rates. Fibrosis was observed in 2 (25%) rats in each group. When group PR was compared with group AV and group PAV, there were no significant differences according to cavernosal tissue healing with fibrosis (p = 0.132 and p = 0.132, respectively). Conclusion: Local application of AV onto the PF region without closing with suture decreased inflammation in rats.

Ultrastructural analyses of the novel chimeric hemostatic agent generated via nanotechnology, ABS nanohemostat, at the renal tissue level.

Ankaferd Blood Stopper (ABS), a hemostatic agent of plant origin, has been registered for the prevention of clinical hemorrhages. Currently there is no data regarding the ultrastructural analysis of ABS at the tissue level. The aim of this study is to assess renal tissue effects via scanning electron microscopy (SEM) analyses for the ABS and ABS nanohemostat (formed by the combination of self-assembling peptide amphiphile molecules and ABS). SEM experiments were performed with FEI Nova NanoSEM 230, using the ETD detector at low vacuum mode with 30 keV beam energy. SEM analyses revealed that significant erythroid aggregation are present inside the capillary bed of the renal tissue. However, neither the signs of necrosis nor any other sign of tissue damage are evident in the surrounding renal tissue supplied by the microcapillary vasculature. Our study is important for several reasons. Firstly, in our study we used ABS nanohemostat which was recently developed. This study adds valuable information to the literature regarding ABS nanohemostat. Secondly, this study is the first ultrastructural analysis of ABS that was performed at the tissue level. Thirdly, we disclosed that ABS nanohemostat could induce vital erythroid aggregation at the renal tissue level as detected by SEM. Lastly, we detected that ABS nanohemostat causes no harm to the tissues including necrosis and any other detrimental effects.

Can immediate second resection be an alternative to standardized second transurethral resection of bladder tumors?

This study analyzed the impact of an immediate second transurethral resection of bladder tumor (TURBT) protocol on residual tumor status at the initial TURBT session and the recurrence rate in the primary resection area. We prospectively evaluated and randomized 47 consecutive patients who underwent TURBT sessions for bladder cancer. In accordance with the inclusion criteria, of the 47 consecutive patients, 19 (Group I) underwent immediate second resection of the tumor bed after complete TUR and 28 (Group II) did not. After standard TURBT, Group I underwent a second cystoscopy and resection of the bed of the tumor or an ignored tumor, which was performed by a different urologist. After 4-6 weeks, delayed second TURB was performed, and all pathological results were evaluated. Tumors were detected in two patients during the immediate second resection. Of these, one was a misdiagnosed tumor, whereas the other was diagnosed at the bed of the tumor by pathological examination. Tumors were detected in nine patients at the delayed second TURB, of which only one was part of Group I, while the others were part of Group II (p = 0.04). The results of this study demonstrated that residual tumors may remain after initial TURB, either in the tumor bed or in a different location within the bladder. Although this was a pilot study enrolling only a small number of patients, our initial results supported the assertion that immediate second resection can be an alternative to standard second TURBT.

Reduced Pain and Anxiety with Music and Noise-Canceling Headphones During Shockwave Lithotripsy.

OBJECTIVE: We assessed the effects of music and noise-canceling headphones (NCHs) on perceived patient pain and anxiety from extracorporeal shockwave lithotripsy (SWL). PATIENTS AND METHODS: Patients with renal calculi scheduled for SWL were prospectively enrolled. All 89 patients between the ages of 19 and 80 years were informed about this study and then randomized into three groups: Group 1 (controls), no headphones and music; Group 2, music with NCHs (patients listened to Turkish classical music with NCHs during SWL); and Group 3, music with non-NCHs (patients listened to Turkish classical music with non-NCHs during SWL). Hemodynamic and respiratory parameters were recorded before and just after the SWL session. All patient visual analog scale (VAS) and State-Trait Anxiety Inventory (STAI) scores were recorded just after the SWL procedure. RESULTS: There were significant differences in VAS scores among the groups (5.1, 3.6, and 4.5, respectively, p < 0.001), including between Groups 2 and 3 (p = 0.018). There were also significant differences in STAI-State anxiety scores among the groups (43.1, 33.5, and 38.9, respectively, p = 0.001), including between Groups 2 and 3 (p = 0.04). CONCLUSIONS: Music therapy during SWL reduced pain and anxiety. Music therapy with NCHs was more effective for pain and anxiety reduction. To reduce pain and anxiety, nonpharmacologic therapies such as music therapy with NCHs during SWL should be investigated further and used routinely.

Patterns, risks and outcomes of urethral recurrence after radical cystectomy for urothelial cancer; over 20 year single center experience.

PURPOSE: To evaluate the factors affecting urethral recurrence after radical cystectomy for bladder cancer and relationship between urinary diversion type and urethral recurrence rates. PATIENTS AND METHODS: In our 504 radical cystectomy series, 287 male patients whose final pathological were urothelial carcinoma were included in the study. The relationship between urethral recurrence and pathological stage, grade, lymph node involvement and diversion type was researched in addition to risk factors for urethral recurrence. RESULTS: A Total of 287 patients. Orthotopic continent urinary diversion (OCD) and ileal conduit (IC) was performed after radical cystectomy in 141 (49.1%) and 146 (50.9%) patients respectively. Urethral recurrence was observed in 11 (3.8%) patients and urethral recurrence rates in OCD and IC groups were 1.4% and 6.2% (p=0.034). Pathological stages of recurrent patients were 2 pT1, 1 pT2 and 8 pT4 respectively (p<0.001). Urethral recurrence was significantly lower in OCD group when compared to IC group (p=0.036). When all parameters were analyzed using Cox multivariate regression analysis, the most important factor that affects urethral recurrence was pathological T stage (p<0.001). Risk factors for urethral recurrence were present in 92 patients. Urethral recurrence rates in patients with and without risk factors were 8.69% and 1.53% (p<0.01). CONCLUSIONS: In this study, pathological stage was found to be the most important factor affecting urethral recurrence and prostatic stromal invasion was an important prognostic factor in these cases. Although risk factors for urethral recurrence were similar in both groups, urethral recurrence rates were significantly lower in OCD group when compared to IC group.

Does sildenafil affect uroflowmetry values in men with lower urinary tract symptoms suggestive of benign prostatic enlargement?

AIMS: To investigate the effect of sildenafil on uroflowmetry values of patients with lower urinary tract symptoms (LUTS) suggestive of benign prostatic enlargement (BPE). METHODS: Thirty-eight consecutive patients and 15 control subjects without voiding symptoms were enrolled in the study. All patients underwent uroflowmetry testing thrice on different occasions. The highest maximum urinary flow rate (Q(max)) values with a sufficient voided volume (> or =150 ml) were evaluated. The patients and controls were seen the day after the initial uroflowmetry measurements and were given 100 mg sildenafil. Afterwards uroflowmetry was repeated. The uroflowmetry values of both groups before and after sildenafil were compared. RESULTS: Of the 38 patients, 29 (76%) showed improvement in flow rates. The mean Q(max) was 11.4 +/- 0.39 and 15.7 +/- 0.74 ml/s before and after sildenafil, respectively (p < 0.0001). The mean percentage difference in Q(max) was +38% higher after sildenafil. The mean average flow rate (Q(ave)) and the mean voiding time values were also significantly improved. The mean voided volumes of the patients before and after sildenafil were 241 +/- 78 and 264 +/- 72 ml, respectively (p = 0.07). There were no significant differences in the Q(max), Q(ave) and voided volumes of the control group. CONCLUSIONS: Sildenafil exhibits a significant improvement in Q(max) and Q(ave) rates in men with LUTS.