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PURPOSE: In vesicourethral anastomosis (VUA), which is part of robot-assisted radical prostatectomy, surgeons must proceed carefully to avoid urethral damage. We developed and evaluated a VUA bench-top model that can measure the traction force on the urethra during robotic surgery. MATERIALS AND METHODS: The VUA model included the urethra, bladder, pelvic bones, and a small force sensor that was capable of measuring the traction force on the urethra. Eight skilled and eight novice urologists performed a VUA task in robotic surgery. The skilled surgeons assessed the model's realism and usefulness as a training tool using a 5-point Likert scale. The evaluation items [task time, maximum force, force volume, and length of time that specific excessive forces were applied to the urethra (2, 3, 4, and ≥ 5 N)] were compared between the skilled and novice surgeons using the Mann-Whitney U test. Measurements were conducted in four directions with respect to the maximum force on the urethra: 11-1, 2-4, 5-7, and 8-10 o'clock. RESULTS: The quality of the model was scored 3.7 to 4.9 points for all 16 items in 4 domains except for "Usefulness compared with animal models." There were differences in the task time and almost all force parameters between the skilled and novice surgeons. CONCLUSION: We developed a relatively high-quality VUA bench-top model that measures traction force on the urethra, and we have revealed differences in the forces of action on the urethra in two groups of surgeons with different skill levels.
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Introduction: Salvage brachytherapy represents an effective treatment for local recurrence of prostate cancer after prior external beam radiotherapy. However, the optimal therapeutic strategies for local recurrence after salvage brachytherapy have not yet been determined. Case presentation: We describe the case of a 77-year-old man who underwent re-salvage focal low-dose rate brachytherapy for local recurrence after carbon ion radiotherapy and salvage focal low-dose rate brachytherapy. We performed re-salvage focal low-dose rate brachytherapy for the recurrence with a different type of seed, which resulted in a significant reduction in the prostate-specific antigen level. During the 35-month follow-up after re-salvage focal low-dose rate brachytherapy, no recurrence of prostate cancer and no severe radiation-related toxicities were observed. Conclusion: Our patient was successfully treated with re-salvage focal low-dose rate brachytherapy for local recurrence after salvage focal low-dose rate brachytherapy. This treatment strategy might be effective for such patients and is not associated with sexual dysfunction or severe adverse events.
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(Objective) The number of elderly people is increasing in Japan, and there are many reports on the safety and effectiveness of treatment for the elderly. As the number of elderly men with benign prostatic hyperplasia is increasing, it is necessary to consider surgical treatment for the elderly. We analyzed the treatment outcome of transurethral enucleation with bipolar (TUEB), and investigated the effectiveness and safety of TUEB in the elderly (over 80 years old) at Saiseikai Izuo Hospital. (Methods) In total, 47 patients who underwent TUEB were enrolled. The patients were divided into two groups by age (< 80 years old group and ≥ 80 years old group). We investigated the factors related to the occurrence of complications by multivariate analysis. (Results) Mean duration of surgery was 107.8 min and 85.8 min (p=0.11) in the < 80 group and the ≥ 80 group, respectively. Mean resected prostate weight was 33.9 g and 31.0 g (p=0.61) and mean hemoglobin loss was 1.29 g/dL and 0.66 g/dL (p=0.01), respectively. Hemoglobin loss was significantly lower in the over 80 years old group. Complications were observed in six patients (24.0%) in the under 80 years old group and two patients (9.1%) in the over 80 years old group; however, there was no significant difference between the two groups (p=0.17). Fever was a complication in the over 80 years old group. In multivariate analysis, operative time was significant predictive factor for complications (odds ratio: 1.03, 95% confidence interval: 1.00-1.06, p=0.03) and, age was not significant predictive factor. (Conclusion) This study shows that TUEB for patients over 80 years old is effective and safe.
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BACKGROUND: The host-related risk factors for surgical difficulty of partial nephrectomy include the presence of thick and adherent adipose tissue surrounding the kidney (adherent perinephric fat [APF]). The kidney and perirenal fat must be isolated in donor nephrectomy. Thus, APF is an important surgery-related factor. We analyzed whether the Mayo adhesive probability (MAP) score is related to APF and surgical outcomes in laparoscopic single-site donor nephrectomy (LESS-DN). METHODS: Forty-six donors who underwent LESS-DN were selected. Determination of APF was based on a retrospective review of video-recorded surgical procedures during anterior perinephric fat dissection. The MAP score was evaluated from computed tomography images. Data regarding patient characteristics and operative outcomes were collected. We then examined the MAP score, APF, and related factors. RESULTS: Eleven patients (23.9%) had APF. The patients were divided into 2 groups (MAP score of 0 points and ≥ 1 point). The 2 groups showed significant differences in sex, age, body mass index, history of hypertension, and history of dyslipidemia. The operation time was significantly longer and the estimated blood loss volume was higher in patients with a MAP score of ≥ 1. Eight of 9 patients with a MAP score of ≥ 1 had APF. The only significant differences between patients with and without APF were in the body mass index, history of hypertension, and history of dyslipidemia. The operation time was significantly longer and the estimated blood loss volume was larger in patients with APF. CONCLUSIONS: The MAP score could be useful when predicting surgical difficulty in patients undergoing LESS-DN.
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Gordura Intra-Abdominal/diagnóstico por imagem , Nefrectomia/efeitos adversos , Aderências Teciduais/diagnóstico por imagem , Coleta de Tecidos e Órgãos/efeitos adversos , Tomografia Computadorizada por Raios X/estatística & dados numéricos , Adulto , Índice de Massa Corporal , Feminino , Humanos , Gordura Intra-Abdominal/patologia , Gordura Intra-Abdominal/cirurgia , Rim/diagnóstico por imagem , Rim/patologia , Rim/cirurgia , Laparoscopia/efeitos adversos , Laparoscopia/métodos , Masculino , Pessoa de Meia-Idade , Nefrectomia/métodos , Complicações Pós-Operatórias/etiologia , Estudos Retrospectivos , Medição de Risco/métodos , Fatores de Risco , Aderências Teciduais/complicações , Aderências Teciduais/patologia , Coleta de Tecidos e Órgãos/métodosRESUMO
Background: Although robotic surgery can improve ergonomics, strain in the hand and wrist is commonly reported. We evaluated gripping force differences between novice and expert surgeons while performing a da Vinci surgical simulator task. Methods: By attaching two force sensors to both master controllers, the average gripping force (AF) and maximum gripping force (MF) were evaluated. Participants (11 experts and 10 novices) performed the Suture sponge 1 task. Results: Almost all AF and MF in the dominant hand of experts were significantly smaller than those of novices. Mean gripping force with the dominant hand was correlated with the number of missed targets (r = 0.63, p = 0.002). Conclusions: Experts applied softer gripping force with the dominant hand than novices. Increased AF in the dominant hand was associated with more missed targets. These results may support learners to relax while performing robotic surgical procedures.
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Ergonomia/métodos , Força da Mão/fisiologia , Procedimentos Cirúrgicos Robóticos/métodos , Procedimentos Cirúrgicos Operatórios/métodos , Adulto , Competência Clínica , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Suturas , Adulto JovemRESUMO
BACKGROUND: This study aimed to analyze the posture patterns of surgeons with two different skill levels during laparoscopic surgery using an optical motion capture system. METHODS: Twenty participants were divided into novice and expert groups. Their upper body motions during suturing tasks were captured, including average angle and angle variability (shoulder, elbow, wrist), joint fixation, head movement, and thoracolumbar flexion angle. RESULTS: Our analysis showed that (1) the arms of the expert surgeons were more loosely held at their sides by about 7°; (2) their elbows were more bent by about 10°; (3) they had a greater change in shoulder angle by about 1.4 times and a more fluid posture; (4) their heads were more stable, particularly in the longitudinal and vertical axes; and (5) their thoracolumbar flexion angle was smaller by about 10°. CONCLUSIONS: The posture patterns of different technical level surgeons during laparoscopic suturing maneuvers revealed differences in limb positions. These results may provide new insights into the efficient acquisition of technical skills and reduced physical stress during laparoscopic surgery.
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Competência Clínica , Movimentos da Cabeça/fisiologia , Laparoscopia , Postura , Técnicas de Sutura , Extremidade Superior/fisiologia , Humanos , Atividade Motora/fisiologia , Análise e Desempenho de Tarefas , TroncoRESUMO
We report a patient with seminoma which recurred as late relapse at the pelvis with elevated alphafetoprotein (AFP) levels. A 40-year-old man presented with a left testicular tumor and subsequently underwent high orchiectomy in 2006. Pathological findings showed that the tumor was a seminoma with invasion into the tunica albuginea (pT2N0M0). Seven years after surgery, computed tomography showed a 12×8.7 mm, well-circumscribed, pelvic cystic tumor, and AFP and human chorionic gonadotropin levels were elevated. He was clinically diagnosed with recurrent testicular cancer. Despite the fact that the patient had four courses of bleomycin, etoposide, and cisplatin (BEP), the tumor enlarged and AFP levels were still elevated. Therefore, we performed open excision of the pelvic tumor. Judging from the pathological report, we made the final diagnosis of mature cystic teratoma. The patient was free of recurrence or metastasis within 48 months of follow-up.
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Neoplasias Pélvicas/secundário , Neoplasias Testiculares/patologia , alfa-Fetoproteínas/análise , Adulto , Humanos , Masculino , Neoplasias Pélvicas/química , Neoplasias Pélvicas/diagnóstico por imagem , Neoplasias Pélvicas/patologia , Recidiva , Neoplasias Testiculares/química , Fatores de Tempo , Tomografia Computadorizada por Raios XRESUMO
OBJECTIVE: Radical prostatectomy is associated with complications including urinary incontinence. A significant association between specific features of the vesicourethral anastomosis and urinary incontinence after radical prostatectomy has been demonstrated. The aim of this study was to identify the most useful predictor of postoperative urinary incontinence after robot-assisted laparoscopic radical prostatectomy (RALP) according to the features of the vesicourethral anastomosis as determined by postoperative cystography. MATERIALS AND METHODS: The final study cohort consisted of 150 patients. Postoperative cystography was performed within 1 week after RALP. The ratio between the longitudinal and horizontal lengths (L/H) of the bladder, the position of the urethrovesical junction (UVJ) and the bladder neck angle as seen on the cystogram were evaluated. Postoperative continence status was evaluated by a 1 h pad test 1 day after catheter removal and by the use of safety pads, retrieved retrospectively from patient records. The association between these variables and urinary incontinence was then analyzed. All patients were followed for at least 1 year postoperatively. RESULTS: The continence rates on the 1 h pad test and 1 month and 1 year after RALP were 31.3%, 56% and 93.3%, respectively. In multivariate analyses, urinary incontinence was significantly associated with nerve sparing, L/H and the vesical angle as determined on the 1 h pad test, but only with the vesical angle at 1 month and 1 year postoperatively. CONCLUSION: A narrow vesical angle measured on cystography is a useful predictor of postoperative urinary incontinence after RALP.
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Cistografia , Prostatectomia/efeitos adversos , Uretra/cirurgia , Bexiga Urinária/cirurgia , Incontinência Urinária/etiologia , Idoso , Anastomose Cirúrgica/efeitos adversos , Humanos , Laparoscopia/efeitos adversos , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/etiologia , Período Pós-Operatório , Valor Preditivo dos Testes , Prostatectomia/métodos , Curva ROC , Estudos Retrospectivos , Procedimentos Cirúrgicos Robóticos/efeitos adversos , Uretra/diagnóstico por imagem , Bexiga Urinária/diagnóstico por imagemRESUMO
BACKGROUND: Surgeons are sometimes forced to maintain uncomfortable joint positions during robotic surgery despite the high degree of instrument maneuverability. This study aimed to use an optical motion capture system to analyze the differences in posture patterns during robotic simulator tasks between surgeons at two skill levels. METHODS: Ten experienced and ten novice surgeons performed two tasks in a da Vinci Skills Simulator: Suture Sponge 1 (SP) and Tubes (TU). The participants' upper body motion during each task was captured, including the joint angles (axilla, elbow, and wrist), the percentage of time when the wrist height was lower than the elbow height (PTW), and the height of the elbow and wrist relative to the armrest. RESULTS: The novice group showed significantly more excess extension in both elbow angles and extension (>50°) in both wrist angles than did the experienced group. The novice group had significantly lower PTW than the experienced group on the right side in both tasks (both p < 0.001), and on the left side in SP (p < 0.001). Compared with the experienced group, the novice group had a significantly higher elbow relative to the armrest on the right side (SP, TU: p < 0.05), and a significantly lower wrist relative to the armrest on the right side (SP, TU: p < 0.05). CONCLUSIONS: An optical motion capture system can detect the differences in posture patterns in the positional relationship between the elbow and wrist and the joint angles of the upper limb between two groups of surgeons at different skill levels during robotic simulator tasks.
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Postura , Procedimentos Cirúrgicos Robóticos/estatística & dados numéricos , Cirurgiões/estatística & dados numéricos , Competência Clínica/estatística & dados numéricos , Simulação por Computador , Feminino , Humanos , Masculino , Projetos Piloto , Amplitude de Movimento ArticularRESUMO
INTRODUCTION: To evaluate safety and excellent cosmetic outcome with laparoendoscopic single-site surgery (LESS). In this study, we compared the usefulness and efficacy of LESS versus conventional laparoscopic surgery for the treatment of urachal remnants. MATERIALS AND METHODS: We retrospectively reviewed the medical records of 20 consecutive patients who underwent either conventional laparoscopic surgery or LESS from January 2007 to February 2015 at Kansai Medical University Hospital. Ten patients underwent surgery using the standard laparoscopic 3-port technique, and 10 patients underwent LESS. The patients included 12 males and 8 females (mean age, 24.5 years; range, 10-68 years). The patients' characteristics, surgical data, and postoperative pain assessment results were retrospectively collected and analyzed. RESULTS: The median operative time, pneumoperitoneal surgery time, and estimated blood loss did not differ between the LESS and conventional laparoscopic groups. However, the total incision length was longer in the conventional laparoscopic group than in the LESS group. The degree of pain at 2 to 5 days postoperatively according to the Wong-Baker FACES Pain Rating Scale was lower in the LESS group than in the conventional laparoscopic group (p < 0.05). CONCLUSIONS: Less is a possible option in the surgical treatment for urachal remnants. In this very small cohort, there is no conversion to traditional laparoscopic surgery or open surgery. This technique is possibly feasible and may achieve less pain. Accumulation of surgical outcomes especially in safety and cosmesis is required to be an established method.
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Endoscopia/métodos , Laparoscopia/métodos , Dor Pós-Operatória/etiologia , Úraco/cirurgia , Adolescente , Adulto , Idoso , Perda Sanguínea Cirúrgica , Criança , Endoscopia/efeitos adversos , Feminino , Humanos , Laparoscopia/efeitos adversos , Masculino , Pessoa de Meia-Idade , Duração da Cirurgia , Estudos Retrospectivos , Úraco/anormalidades , Adulto JovemRESUMO
The laparoscopic management of urachal remnants has gradually become a common practice. Recently, laparoscopic single-site surgery (LESS), a minimally invasive approach that provides excellent cosmetic results, has been adopted in several surgical procedures for treating urachal remnants. However, when suturing the bladder wall or peritoneal defect during LESS it may be difficult to conduct the procedure manually, and such cases require an additional port for suturing. Our strategy, however, employs a knot pusher to perform the suturing without the need for an additional port. We compared and examined the perioperative parameters of the patients with the additional port and one without it (knot-pusher group). For the additional-port and knot-pusher groups, the average operative time, was 146.8 and 161.7 minutes respectively, pneumoperitoneal surgery time was 90.8 and 88.0 minutes, respectively, suturing time for the bladder wall was 577 and 502 seconds, respectively suturing time for peritoneal defect was 758 vs 779 seconds, respectively, and estimated blood loss was 19 and 9.6 ml, respectively ; there being no significant difference between the two groups. We report our knot-pusher method because it can achieve comparable results without compromising the surgical outcome.
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Laparoscopia/métodos , Doenças da Bexiga Urinária/cirurgia , Adolescente , Adulto , Criança , Feminino , Humanos , Laparoscopia/instrumentação , Masculino , Pessoa de Meia-Idade , Duração da Cirurgia , Úraco , Adulto JovemRESUMO
OBJECTIVE: This study aimed to evaluate the relationship between sexual activity and sexual function using questionnaires distributed to middle-aged Japanese patients with localized prostate cancer. METHODS: A total of 145 patients who underwent radical prostatectomy were enrolled in the survey reported on herein. Sexual activity and sexual function were investigated via the Expanded Prostate Cancer Index Composite (EPIC) and an original self-reported questionnaire. RESULTS: Of participants, 24.1% and 20.7% had sexual activity within a month period as investigated via the EPIC and original questionnaire, respectively. However, 29.7% of all those who reported sexual activity rate reported "about once every 2 months to a year," as shown in the original questionnaire. Regarding sexual function as addressed through EPIC, no results within that questionnaire's measure of sexual function showed significant differences among patients with a rate of actual sexual activity. CONCLUSIONS: The present survey showed that more than quarter of preoperative middle-aged Japanese prostate cancer patients surveyed had actual sexual activity, though not within the preceding 4 weeks. To precisely evaluate sexual function of middle-aged Japanese patients, it is necessary to consider actual sexual activity.
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Período Pré-Operatório , Prostatectomia/efeitos adversos , Neoplasias da Próstata/cirurgia , Comportamento Sexual , Idoso , Distribuição de Qui-Quadrado , Disfunção Erétil/etiologia , Inquéritos Epidemiológicos , Humanos , Japão , Masculino , Pessoa de Meia-Idade , Período Pós-Operatório , Estudos Retrospectivos , Fatores de Risco , Autorrelato , Estatísticas não ParamétricasRESUMO
INTRODUCTION: No studies have shown whether the enhanced recovery after surgery (ERAS) protocol is superior to the conventional protocol after robot-assisted laparoscopic radical prostatectomy (RALP). We compared intestinal function and perioperative parameters of patients with prostate cancer after the ERAS and conventional protocols to determine the superior protocol for recovery of intestinal function. MATERIAL AND METHODS: A retrospective analysis of 198 consecutive patients who underwent RALP between August 2013 and June 2015 was conducted. Our study design included 2 cohorts. Patients underwent conventional care in one group (n = 123) and the ERAS protocol in the other group (n = 75). The primary outcome was the time to first defecation. Secondary outcomes were perioperative parameters and the complication rate. RESULTS: The ERAS group showed a significantly shorter time to first defecation than did the conventional group (p = 0.006). Multivariate analysis showed that selection of the ERAS protocol was significantly associated with the number of days for first time to defecation. CONCLUSIONS: Successful application of an ERAS protocol was applied to our patients who underwent RALP and did not have major complications. The ERAS protocol included enhanced intestinal recovery. The ERAS group showed a significantly shorter time to first defecation than did the conventional group.
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Laparoscopia , Prostatectomia/métodos , Procedimentos Cirúrgicos Robóticos , Idoso , Defecação , Humanos , Intestinos/fisiologia , Laparoscopia/efeitos adversos , Tempo de Internação , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Avaliação de Programas e Projetos de Saúde , Prostatectomia/efeitos adversos , Recuperação de Função Fisiológica , Estudos Retrospectivos , Procedimentos Cirúrgicos Robóticos/efeitos adversos , Fatores de Tempo , Resultado do TratamentoRESUMO
BACKGROUND: Renin-angiotensin system blockade has been effective for the treatment of patients with several types of malignancy. This study evaluated the prognostic impact of renin-angiotensin system inhibitors, including angiotensin-2 converting enzyme inhibitors and angiotensin 2 receptor blockers, in patients with bladder cancer undergoing radical cystectomy. METHODS: This retrospective study included 269 patients who had undergone radical cystectomy. The oncologic outcomes of patients treated or not treated with renin-angiotensin system inhibitors after surgery were evaluated. Overall survival and cancer-specific survival were assessed by the Kaplan-Meier method and by Cox regression analysis. RESULTS: The median follow-up duration after radical cystectomy in survivors was 44.5 months. The 5-year, cancer-specific survival rates in patients who did and did not receive renin-angiotensin system inhibitors were 79.0 and 66.4 %, respectively (P = 0.011). Similarly, the 5-year overall survival rates were 76.1 and 61.4 %, respectively (P = 0.0097). Multivariable analyses showed that use of renin-angiotensin system inhibitors was an independent prognostic factor for cancer-specific survival (hazard ratio 0.47, P = 0.036) and for overall survival (hazard ratio 0.36, P = 0.022). CONCLUSIONS: Renin-angiotensin system inhibitors significantly reduced the risks of cancer-specific and overall mortality after radical cystectomy in patients with bladder cancer. Renin-angiotensin system inhibitors may improve oncologic outcomes in high-risk patients with bladder cancer.
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Antagonistas de Receptores de Angiotensina/uso terapêutico , Inibidores da Enzima Conversora de Angiotensina/uso terapêutico , Carcinoma de Células de Transição/tratamento farmacológico , Carcinoma de Células de Transição/cirurgia , Neoplasias da Bexiga Urinária/tratamento farmacológico , Neoplasias da Bexiga Urinária/cirurgia , Fatores Etários , Idoso , Antineoplásicos/uso terapêutico , Carcinoma de Células de Transição/patologia , Quimioterapia Adjuvante , Cistectomia , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Invasividade Neoplásica , Neoplasia Residual , Prognóstico , Estudos Retrospectivos , Taxa de Sobrevida , Neoplasias da Bexiga Urinária/patologiaRESUMO
OBJECTIVE: The aim of this study was to evaluate and compare the cosmetic outcomes of laparoscopic single-site surgery (LESS) and conventional laparoscopy (CL) in the treatment of ureteropelvic junction obstruction (UPJO) and urachal remnant removal. LESS is thought to produce better cosmetic results than CL; however, patients' perception of their scars has not been assessed. This study compared the subjective body image and cosmesis ratings of patients who had undergone LESS or CL for UPJO and urachal remnant removal. MATERIALS AND METHODS: Fifty patients who underwent LESS or CL for UPJO or urachal remnant removal between June 2008 and June 2015 were included. Cosmetic outcomes were evaluated using the Body Image Questionnaire (BIQ) and Photo-Series Questionnaire (PSQ). RESULTS: The body image and cosmetic scores were significantly higher for patients who underwent LESS than for those who underwent CL, for both pyeloplasty and urachal remnant removal (p < .05 each). When performed for either a pyeloplasty or urachal remnant removal, significantly greater BIQ and PSQ scores were observed in females after LESS compared to CL, but not in males. CONCLUSION: LESS for UPJO and urachal remnant removal has better self-reported body image and cosmesis ratings than CL. This trend is particularly strong in female patients.
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Imagem Corporal , Cicatriz , Pelve Renal/cirurgia , Laparoscopia/métodos , Úraco/cirurgia , Obstrução Ureteral/cirurgia , Adolescente , Adulto , Estética , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores Sexuais , Inquéritos e Questionários , Adulto JovemRESUMO
AIM: Optimizing nephron supply to recipient demand is a non-immunologic determinant of renal allograft outcome. Nephron reduction is usually caused by physical donor-recipient mismatch, but its pathologic relevance remains to be determined. METHODS: Thirty-one recipients of living donor renal transplants were divided into three subgroups: those who received transplants from the same gender (n = 6, Group 1) and those who underwent male-to-female (n = 8, Group 2) and female-to-male (n = 17, Group 3) transplants. Renal mass was evaluated by three-dimensional computed tomography (3D-CT) volumetry before and one year after transplantation. Glomerular volume was determined from protocol biopsies obtained one hour and one year after transplantation. RESULTS: Histologically determined glomerular volume in biopsied tissues showed a significant linear correlation with allograft size on 3D-CT volumetry (P < 0.001, r = 0.625). Mismatches in body weight, glomerular volume and kidney volume ratios were significantly greater in female-to-male (Group 3) than in male-to-female (Group 2) transplants (P < 0.001 each). Despite the two groups having nearly equal graft filtration rates one year after transplantation, proteinuria rate was three-fold higher in Group 3 than in Group 2 (P < 0.001). CONCLUSION: These findings suggest that too small graft size, frequent in female-to-male transplants, could cause hypertrophy in both kidneys and glomeruli, thereby affecting allograft function and survival.
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Taxa de Filtração Glomerular , Transplante de Rim , Rim/patologia , Doadores Vivos , Adulto , Idoso , Feminino , Sobrevivência de Enxerto , Humanos , Hipertrofia , Imageamento Tridimensional , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Tomografia Computadorizada por Raios X , Transplante HomólogoRESUMO
PURPOSE: Urinary biomarkers of renal injury urinary may identify loss of renal function following nephron-sparing surgery (NSS). This study was designed to evaluate whether urinary l-type fatty acid-binding protein (l-FABP) is an early biomarker of loss of renal function after NSS. Specifically, the kinetics of urinary l-FABP level after NSS and its correlation with factors related to ischemic renal injury were analyzed. METHODS: This study prospectively evaluated 18 patients who underwent NSS between July and December 2014, including 12 who underwent laparoscopic and six who underwent robot-assisted partial nephrectomy. Urinary l-FABP concentrations were measured preoperatively and 1, 2, 3, 6, 12, 24, 48, and 72 h after renal artery declamping. Loss of renal function loss was calculated by comparing the effective renal plasma flow, as determined by 99mTc-mercaptoacetyltriglycine (MAG3) clearance, on the operated and normal sides. The decrease in estimated glomerular filtration rate from before surgery to six months after surgery was also measured. RESULTS: Urinary l-FABP concentration peaked within 2 h of declamping, which may quantify nephron damage caused by ischemia. The decrease in MAG3 reduction ratio correlated with both the ischemia time and peak urinary l-FABP concentration. Peak urinary l-FABP concentration showed a significant correlation with MAG3 reduction ratio. CONCLUSIONS: l-FABP is a suitable urinary biomarker for predicting the extent of ischemic renal injury.
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Proteínas de Ligação a Ácido Graxo/urina , Isquemia/fisiopatologia , Laparoscopia/efeitos adversos , Nefrectomia/efeitos adversos , Néfrons/lesões , Artéria Renal/fisiopatologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Biomarcadores/urina , Feminino , Humanos , Japão , Testes de Função Renal , Modelos Lineares , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Fatores de TempoRESUMO
A 46-year-old man was admitted to hospital presenting with a lower abdominal mass. The patient's testes were not palpable in the scrotum, and the levels of lactic dehydrogenase, α-fetoprotein and human chorionic gonadotropin were all elevated. Enhanced computed tomography revealed that the lumen of the mass had penetrated the prostate. Pathological analysis of biopsy tissue indicated that the mass was a seminoma. Residual tumor resection was performed after chemotherapy. On histological examination, the lumen proved to be a Mullerian structure. Our diagnosis was an intra-abdominal germ cell tumor and persistent Mullerian duct syndrome.
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Transtorno 46,XY do Desenvolvimento Sexual/complicações , Neoplasias Embrionárias de Células Germinativas/diagnóstico por imagem , Neoplasias Embrionárias de Células Germinativas/etiologia , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Imagem Multimodal , Neoplasias Embrionárias de Células Germinativas/cirurgia , Tomografia Computadorizada por Raios X , Resultado do TratamentoRESUMO
OBJECTIVE: To assess the prognostic value of perioperative changes in the neutrophil-lymphocyte ratio in patients with bladder cancer undergoing radical cystectomy. METHODS: We performed a retrospective analysis of 323 patients who had undergone radical cystectomy at our institutions. Overall survival was assessed with the Kaplan-Meier method and Cox regression analysis. RESULTS: Preoperative and postoperative neutrophil-lymphocyte ratios were significantly correlated with overall survival (both P = 0.0001). Changes in perioperative neutrophil-lymphocyte ratio stratified the patients into two groups, designated favorable- and poor-risk groups, with significantly different 5-year overall survival rates (75.1% and 41.4%, respectively; P < 0.0001). Multivariate Cox regression analyses showed that the perioperative change in neutrophil-lymphocyte ratio was an independent prognostic factor for overall survival (hazard ratio 2.56, 95% confidence interval 1.75-3.73; P < 0.001). Moreover, a decrease in neutrophil-lymphocyte ratio after adjuvant chemotherapy was associated with favorable overall survival in patients with high postoperative neutrophil-lymphocyte ratio (P < 0.001), indicating that neutrophil-lymphocyte ratio may be a predictive factor for the efficacy of adjuvant chemotherapy. CONCLUSIONS: Perioperative changes in neutrophil-lymphocyte ratio are significantly associated with overall survival in patients with bladder cancer undergoing radical cystectomy. Follow-up of the neutrophil-lymphocyte ratio change may be useful for the clinical management of patients after surgery.
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Linfócitos/citologia , Neutrófilos/citologia , Neoplasias da Bexiga Urinária/mortalidade , Idoso , Antineoplásicos/uso terapêutico , Quimioterapia Adjuvante , Cistectomia , Feminino , Humanos , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Prognóstico , Modelos de Riscos Proporcionais , Estudos Retrospectivos , Fatores de Risco , Neoplasias da Bexiga Urinária/tratamento farmacológico , Neoplasias da Bexiga Urinária/cirurgiaRESUMO
Cystitis glandularis, a proliferative disease of the bladder, is resistant to antibiotics, non-steroidal anti-inflammatory drugs, anti-allergy drugs and transurethral resection. Cystectomy or partial cystectomy is occasionally required for refractory cystitis glandularis. It has not been defined if cystitis glandularis is a premalignant lesion. We experienced a case of remission from cystitis glandularis after combination of oral treatment with selective cyclooxygenase-2 inhibitor, celecoxib and transurethral resection. Immunohistochemistry showed positive signals of cyclooxygenase-2 in the epithelium of pretreatment specimens, suggesting the pathophysiological role of cyclooxygenase-2 in cystitis glandularis. Here, we show the effectiveness of celecoxib against cystitis glandularis for the first time. Celecoxib could be one of the therapeutic strategies for cystitis glandularis.