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1.
World J Urol ; 42(1): 326, 2024 May 15.
Artículo en Inglés | MEDLINE | ID: mdl-38748308

RESUMEN

PURPOSE: Our study aimed to compare the surgical outcomes of robot-assisted partial nephrectomy (RAPN) between younger and older patients after adjusting for their background differences. We particularly assessed RAPN outcomes and safety in older patients. METHODS: We retrospectively evaluated 559 patients clinically diagnosed with T1 renal cell carcinoma (RCC) and treated with RAPN between 2013 and 2022 at five institutions in Japan. The patients were classified into two groups according to their age during surgery (younger group: < 75 years, older group: ≥ 75 years). Propensity score matching (PSM) was performed to adjust for the differences in the backgrounds between younger and older patients, and surgical outcomes were compared. RESULTS: Among the 559 patients, 422 (75.5%) and 137 (24.5%) were classified into the younger and older groups, respectively; 204 and 102 patients from the younger and older groups were matched according to PSM, respectively. Subsequently, patient characteristics other than age were not significantly different between the two groups. In the matched cohort, the older group had more patients with major complications (younger, 3.0%; older, 8.8%; P = 0.045). CONCLUSION: Surgical outcomes of RAPN in older patients with RCC were comparable with those in younger patients, although older patients experiencedsignificantly more complications than younger patients. These results suggest the need for further detailed preoperative evaluation and appropriate postoperative management in older patients receiving RAPN.


Asunto(s)
Carcinoma de Células Renales , Neoplasias Renales , Nefrectomía , Puntaje de Propensión , Procedimientos Quirúrgicos Robotizados , Humanos , Carcinoma de Células Renales/cirugía , Neoplasias Renales/cirugía , Nefrectomía/métodos , Procedimientos Quirúrgicos Robotizados/métodos , Masculino , Femenino , Anciano , Estudios Retrospectivos , Persona de Mediana Edad , Factores de Edad , Resultado del Tratamiento , Adulto , Anciano de 80 o más Años , Complicaciones Posoperatorias/epidemiología
2.
Int J Urol ; 31(7): 795-801, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38622823

RESUMEN

OBJECTIVES: This study aimed to investigate perioperative complications and the details of postoperative ureteral stricture after ureteroscopy with laser lithotripsy (URS-L) for upper urinary tract stones in Japan. METHODS: Patient data on intra- and postoperative complications after ureteroscopy using URS-L were retrospectively collected from multiple centers in Japan between April 2017 and March 2020 with the cooperation of the Japanese Society of Endourology and Robotics. Data included the number of patients undergoing URS-L, number and type of intra- and postoperative complications, and detailed characteristics of postoperative ureteral stricture. RESULTS: In total, 14 125 patients underwent URS-L over 3 years at 82 institutions. Annual URS-L numbers gradually increased from 4419 in 2017, to 4760 in 2018, and 4946 in 2019. The total complication rate was 10.5%, which was divided into intra-operative complications in 1.40% and postoperative complications in 9.18%. The annual incidences of intra- and postoperative complications were not significantly different from year to year (p = 0.314 and p = 0.112). Ureteral perforation, ureteral avulsion, and the intra-operative conversion rate were 1.35%, 0.03%, and 0.02%, respectively. Fever >38°C, septic shock, blood transfusion, and postoperative mortality were 7.44%, 0.81%, 0.07%, and 0.04%, respectively. Ureteral stricture occurred in 0.8% of cases. The median length of stricture site was 10.0 mm and the success rate of stricture treatment was 54.6%. CONCLUSION: Although URS-L utilization has increased in Japan, the annual complication rate has remained steady. Although URS-L is a useful and less invasive procedure, devastating complications can still occur.


Asunto(s)
Litotripsia por Láser , Complicaciones Posoperatorias , Ureteroscopía , Humanos , Ureteroscopía/efectos adversos , Japón/epidemiología , Masculino , Femenino , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/etiología , Persona de Mediana Edad , Litotripsia por Láser/efectos adversos , Litotripsia por Láser/métodos , Estudios Retrospectivos , Anciano , Adulto , Complicaciones Intraoperatorias/epidemiología , Complicaciones Intraoperatorias/etiología , Cálculos Ureterales/cirugía , Cálculos Ureterales/terapia , Obstrucción Ureteral/etiología , Obstrucción Ureteral/epidemiología , Constricción Patológica/etiología , Constricción Patológica/epidemiología , Incidencia , Cálculos Renales/cirugía , Pueblos del Este de Asia
3.
Int J Urol ; 30(3): 281-288, 2023 03.
Artículo en Inglés | MEDLINE | ID: mdl-36448456

RESUMEN

OBJECTIVES: To compare the postoperative outcomes of robot-assisted partial nephrectomy when only the inner layer is sutured (single-layer technique with soft coagulation) with those when sutures are placed in the inner and outer layers (double-layer technique) in patients with and without complex renal tumors. METHODS: This retrospective three-institution study included 371 patients with renal tumors who underwent robot-assisted partial nephrectomy with a double-layer technique or a single-layer technique with soft coagulation. Tumors that were cT1b, completely embedded, located in the renal portal, or had a RENAL score of ≥10 were considered complex. Relevant data were collected from hospital records. Propensity score matching was performed to minimize selection bias. RESULTS: Propensity score matching created 83 patient pairs with non-complex tumors and 32 with complex tumors. Regardless of tumor complexity, there was no significant difference in operation time, console time, warm ischemia time, positive surgical margin rate, or length of hospital stay between the double-layer and single-layer groups. Although Clavien-Dindo grade I-II urinomas not requiring intervention were significantly more common in the single-layer group regardless of tumor complexity, there was no significant between-group difference in the rate of decline in renal function or grade III-IV complications. CONCLUSION: Single-layer suturing with soft coagulation achieves renal function and perioperative outcomes comparable to those of double-layer suturing regardless of complexity.


Asunto(s)
Neoplasias Renales , Procedimientos Quirúrgicos Robotizados , Robótica , Humanos , Estudios Retrospectivos , Nefrectomía/métodos , Riñón/cirugía , Neoplasias Renales/patología , Procedimientos Quirúrgicos Robotizados/métodos , Resultado del Tratamiento
4.
BMC Urol ; 22(1): 174, 2022 Nov 07.
Artículo en Inglés | MEDLINE | ID: mdl-36344965

RESUMEN

BACKGROUND: Robot-assisted radical cystectomy (RARC) and intracorporeal urinary diversion are less invasive than conventional procedures. However, for older patients, cutaneous ureterostomy (CUS) may be preferred because urinary diversion using the intestine has a high incidence of perioperative complications and is highly invasive. The purpose of this study was to demonstrate the safety and efficacy of intracorporeal ileal conduit (ICIC) compared with CUS in patients aged 75 years or older who underwent RARC. METHODS: From October 2014 to December 2021, 82 patients aged 75 years or older who underwent RARC at Tokushima University Hospital, Tokushima Prefectural Central Hospital, or Ehime Prefectural Central Hospital were retrospectively reviewed. Of these, 52 and 25 patients who underwent ICIC and CUS, respectively, were included. After adjusting the patients' characteristics using propensity score-matching, surgical results and prognoses were retrospectively compared. The propensity score was based on age, Eastern Cooperative Oncology Group Performance Status Scale (ECOG-PS), American Society of Anesthesiologists physical status classification (ASA-PS), clinical tumor stage, and neoadjuvant chemotherapy. RESULTS: The median age was lower in the ICIC group compared with the CUS group, and the proportion of high-risk cases (ECOG-PS ≥ 2 or ASA-PS ≥ 3) did not differ. The median operation time was longer in the ICIC group, and estimated blood loss was higher, compared with the CUS group. There were no significant differences in the incidence of complications within the first 30 postoperative days, incidence of complications 30-90 days after surgery, 2-year overall survival, 2-year cancer-specific survival, and 2-year recurrence-free survival. The stent-free rate was significantly lower in the CUS group than that in the ICIC group. CONCLUSION: In older patients, the ICIC group showed non-inferior surgical and oncological outcomes compared with the CUS group. Urinary diversion following RARC in older patients should be carefully selected by considering not only the age but also the general condition (including comorbidities) of the patient.


Asunto(s)
Procedimientos Quirúrgicos Robotizados , Robótica , Neoplasias de la Vejiga Urinaria , Derivación Urinaria , Anciano , Humanos , Cistectomía/métodos , Complicaciones Posoperatorias/etiología , Puntaje de Propensión , Estudios Retrospectivos , Procedimientos Quirúrgicos Robotizados/métodos , Resultado del Tratamiento , Ureterostomía/efectos adversos , Neoplasias de la Vejiga Urinaria/patología , Derivación Urinaria/efectos adversos
5.
Hinyokika Kiyo ; 64(9): 365-368, 2018 Sep.
Artículo en Japonés | MEDLINE | ID: mdl-30369227

RESUMEN

Although patients on long-term hemodialysis frequently develop renal cell carcinoma, mucinous tubular and spindle cell carcinoma (MTSCC) is rare in incidence. Here, we report a case of MTSCC occurring in a patient under hemodialysis. The patient was a 72-year-old man with end stage renal failure due to diabetic nephropathy. Hemodialysis was initiated in 2003. He presented with macrohematuria. Contrastenhanced computed tomography (CT) revealed a right renal tumor. Laparoscopic right nephrectomy was performed accordingly in June 2017. Pathologically, the tumor was diagnosed as MTSCC. Six months after the surgery, the patient remains free of recurrence and metastasis. Here we review the characteristics of 5 MTSCC cases in patients on hemodialysis reported in Japan.


Asunto(s)
Adenocarcinoma Mucinoso/diagnóstico por imagen , Carcinoma/diagnóstico por imagen , Neoplasias Renales/diagnóstico por imagen , Adenocarcinoma Mucinoso/cirugía , Anciano , Carcinoma/cirugía , Humanos , Neoplasias Renales/patología , Neoplasias Renales/cirugía , Masculino , Nefrectomía , Diálisis Renal , Resultado del Tratamiento
6.
Urol Int ; 95(1): 26-32, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-25833730

RESUMEN

BACKGROUND: The flexible ureterorenoscope (URS) and associated devices have developed rapidly. However, despite its therapeutic benefits, URS may be associated with some complications. To the best of our knowledge, there are no studies discussing the complications of flexURS during the learning curve. METHODS: A retrospective review of the records of patients who underwent flexURS from January 2005 to June 2013 was performed. To compare the complications after the introduction of flexURS, patients were divided into four groups based on the surgeon's training experience, that is, based on the number of cases performed by the surgeon. A total of 219 cases underwent flexURS. Groups 1, 2, 3, and 4 included 35, 50, 50, and 84 cases, respectively. The complications were classified using the Clavien system (I-IV). RESULTS: The mean operation time and stone-free rate were significantly different (p < 0.001, p = 0.013, respectively). The total complication rates were 13.6, 10, 8.3, and 3.2%, respectively (p = 0.068). The more the surgeon's experience, the less was the complication rate. Despite our best efforts, the incidence of urosepsis was not reduced (p = 0.902). CONCLUSIONS: To reduce severe complications, it is necessary to have performed about 100 cases. Increased surgeon experience tended to decrease the risk of severe complications, but the incidence of urosepsis was not reduced.


Asunto(s)
Cálculos Renales/cirugía , Cálculos Ureterales/cirugía , Ureteroscopios , Ureteroscopía/efectos adversos , Urología/educación , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Niño , Femenino , Humanos , Curva de Aprendizaje , Masculino , Persona de Mediana Edad , Tempo Operativo , Estudios Retrospectivos , Riesgo , Sepsis/prevención & control , Uréter/cirugía , Adulto Joven
7.
Cureus ; 16(6): e62597, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-39027782

RESUMEN

A 61-year-old asymptomatic female with autosomal dominant polycystic kidney disease (ADPKD) on tolvaptan therapy was hospitalized for acute kidney injury (AKI). Nephrolithiasis had already been diagnosed; however, the patient had not undergone any interventions. She also presented with hyponatremia possibly caused by overhydration. Because the estimated glomerular filtration rate (eGFR) decline was significantly higher than the predicted rate, we considered a possible case of postrenal AKI and examined computed tomography (CT), which revealed left hydronephrosis with a 9.4-mm ureteric stone at the level of L3/L4. We restricted fluid intake, which resulted in an increase in sodium levels. She was treated with transurethral lithotripsy (TUL) twice, which successfully improved her kidney function. Although the serum sodium levels increase because of aquaresis in almost all patients treated with tolvaptan, our case was unique in that the patient presented with hyponatremia. We should pay more attention to the periodical follow-up of nephrolithiasis in addition to the increase in total kidney volume and decide the appropriate time to treat nephrolithiasis depending on the case. We should also keep in mind that ADPKD patients have a high frequency of nephrolithiasis and, even if asymptomatic, investigate urinary tract obstruction and hydronephrosis in case of AKI.

8.
Asian J Endosc Surg ; 17(3): e13334, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38830638

RESUMEN

OBJECTIVE: To evaluate the effectiveness of an educational stepwise robot-assisted radical prostatectomy (RARP) procedure for urology residents. METHODS: We performed a detailed evaluation of 42 RARP procedures performed by a single urology resident from July 2019 to February 2022. The RARP procedures were divided into the following nine steps: (1) bladder dissection, (2) endopelvic fascia dissection, (3) bladder neck dissection, (4) seminal vesicle dissection, (5) Denonvilliers' fascia dissection, (6) dorsal vascular complex ligation, (7) dissection of the prostatic apex, (8) posterior anastomosis, and (9) urethro-vesical anastomosis. The procedures were further subcategorized as anatomical understanding, spatial recognition, and technical skills for evaluation of resident training. The surgeries were divided into first and second halves, and patient characteristics and operative outcomes were statistically analyzed. The operative time of each of the nine steps and the reasons for proctor intervention were compared. RESULTS: Among 42 patients, there were no significant differences in operative outcomes between the two groups. The median operative time was 169 min (164 vs. 179 min, p = .12), and the median console time was 128 min (127 vs. 130 min, p = .74). Although there were no significant differences in the time of the nine steps, the resident significantly overcame (7) dissection of the prostatic apex and (8) posterior anastomosis based on the evaluation of the proctored reasons for intervention. CONCLUSIONS: Urology residents can safely perform and efficiently learn RARP with this stepwise educational system. This educational stepwise RARP procedure can effectively help residents to develop their skills.


Asunto(s)
Competencia Clínica , Internado y Residencia , Prostatectomía , Procedimientos Quirúrgicos Robotizados , Urología , Humanos , Prostatectomía/educación , Prostatectomía/métodos , Procedimientos Quirúrgicos Robotizados/educación , Masculino , Persona de Mediana Edad , Urología/educación , Anciano , Tempo Operativo , Neoplasias de la Próstata/cirugía , Estudios Retrospectivos
9.
Asian J Endosc Surg ; 17(2): e13307, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38561598

RESUMEN

INTRODUCTION: This study was performed to evaluate the differences in the perioperative results, renal function, and incidence of hydronephrosis over time between the use of Bricker anastomosis and Wallace anastomosis for robot-assisted intracorporeal ileal conduit urinary diversion (RICIC). METHODS: Fifty-five patients who underwent RICIC at two institutions were evaluated (Bricker, n = 23; Wallace, n = 32). We investigated changes in estimated glomerular filtration rate and hydronephrosis before surgery and at 3, 6, and 12 months after surgery. RESULTS: The patients in the Bricker group were significantly older than those in the Wallace group. The urinary diversion time was significantly longer in the Bricker group. No significant difference in postoperative renal function was observed. Additionally, no significant difference was observed in the incidence of postoperative hydronephrosis. However, the incidence of right hydronephrosis tended to be high overall, especially in the Wallace group. No patients in either group required repair surgery or ureteral stent placement. CONCLUSIONS: In patients undergoing RICIC, there was no difference in postoperative renal function or the incidence of hydronephrosis between Wallace and Bricker anastomosis. Symptomatic hydronephrosis was not observed in either group. The present study showed that each method was equally effective and safe.


Asunto(s)
Hidronefrosis , Robótica , Neoplasias de la Vejiga Urinaria , Derivación Urinaria , Humanos , Íleon/cirugía , Derivación Urinaria/métodos , Cistectomía/métodos , Hidronefrosis/cirugía , Anastomosis Quirúrgica/métodos , Neoplasias de la Vejiga Urinaria/cirugía
10.
J Robot Surg ; 18(1): 141, 2024 Mar 30.
Artículo en Inglés | MEDLINE | ID: mdl-38554230

RESUMEN

This study was performed to clarify the therapeutic and diagnostic roles of lymph node dissection (LND) by examining the impact of LND and lymph node yield (LNY) on oncological outcomes in patients undergoing robot-assisted radical cystectomy (RARC). Between 2014 and 2021, 216 patients underwent LND during RARC at Tokushima University Hospital and affiliated hospitals. Among the 216 patients, we compared 115 patients with an LNY of ≥ 20 and 101 with an LNY of < 20 to investigate the impact of LNY on surgical and oncological outcomes. Furthermore, we investigated the impact of LNY and the extent of LND on oncological outcomes by dividing the extent of LND into two groups (standard and extended). The 3-year rates of overall survival (OS) (p = 0.256), cancer-specific survival (CSS) (p = 0.791), and recurrence-free survival (RFS) (p = 0.953) did not differ between the two groups divided by the LNY. A higher LNY was associated with a significantly higher lymph node positivity rate (p = 0.020). The incidence of LND-related major complications was not significantly different between the two groups (p = 0.910). The 3-year survival rates did not differ between the two groups divided by the extent of LND: OS (p = 0.366), CSS (p = 0.814), and RFS (p = 0.689). The LNY and extent of LND were not associated with oncological outcomes in patients undergoing LND during RARC, whereas a higher LNY was associated with lymph node positivity. In the era of adjuvant therapy with immune checkpoint inhibitors, LND during RARC has an important diagnostic role in the detection of pathological node positivity.


Asunto(s)
Procedimientos Quirúrgicos Robotizados , Neoplasias de la Vejiga Urinaria , Humanos , Cistectomía , Escisión del Ganglio Linfático/efectos adversos , Estudios Retrospectivos , Procedimientos Quirúrgicos Robotizados/métodos , Resultado del Tratamiento , Neoplasias de la Vejiga Urinaria/patología
11.
Hinyokika Kiyo ; 59(10): 669-72, 2013 Oct.
Artículo en Japonés | MEDLINE | ID: mdl-24262709

RESUMEN

A 66-year-old man with superficial bladder cancer was treated with transurethral resection (TURBT) in October 2011. The pathological diagnosis was urothelial carcinoma (UC), grade 2, T1. A second TURBT was performed one month later. The pathological diagnosis was UC, grade 3, T1. He was treated with intravesical bacillus Calmette-Guerin (BCG) after TURBT. His progress was satisfactory, but a small superficial bladder cancer was found on cystoscopy in August 2012. He was going to be treated with TURBT, but the serum alkaline phosphatase level was abnormally high on preoperative evaluation. Bone scintigraphy showed multiple bone metastases from non-muscle invasive bladder cancer (NMIBC) without local invasion. He was started on combined chemotherapy with 1,000 mg/m2 gemcitabine on days 1, 8 and 15 and 70 mg/m2 cisplatin on day 2 every four weeks. He received denosumab for multiple bone metastases at the same time. Although he subsequently developed severe hypocalcemia, treatment was continued, and he completed four courses of chemotherapy. Bone scintigraphy and contrast-enhanced computed tomography showed reduction of the multiple bone metastases, and alkaline phosphatase decreased to the normal range. It is rare for NMIBC without local invasion to metastasize to other organs. Thus, it is necessary to consider distant metastases in patients with NMIBC.


Asunto(s)
Neoplasias Óseas/secundario , Neoplasias de la Vejiga Urinaria/patología , Anciano , Antimetabolitos Antineoplásicos/administración & dosificación , Antineoplásicos/administración & dosificación , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Cisplatino/administración & dosificación , Desoxicitidina/administración & dosificación , Desoxicitidina/análogos & derivados , Humanos , Masculino , Neoplasias de la Vejiga Urinaria/tratamiento farmacológico , Gemcitabina
12.
Asian J Endosc Surg ; 16(1): 23-27, 2023 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-35842843

RESUMEN

INTRODUCTION: Vaginal reconstruction using the posterior vaginal wall is required following radical cystectomy in women with resection of the uterus, adnexa, and anterior vaginal wall. Roll closure and clamshell closure are two widely known techniques. Of these, clamshell closure is recommended because roll closure has a high likelihood of breakdown or a resultant canal that is too narrow for sexual intercourse. In clamshell closure, however, folding the posterior vaginal wall anteriorly can be difficult. Therefore, we devised Mercedes-Benz closure, in which the vaginal wall is sutured from three directions to form a Mercedes-Benz shape, for anastomosis without tension on the vaginal wall. The present study was performed to investigate the efficacy of this alternative surgical technique for vaginal reconstruction. METHODS: Twenty-six patients who underwent vaginal reconstruction following robot-assisted radical cystectomy were divided into two groups: 15 underwent clamshell closure and 11 underwent Mercedes-Benz closure. The patients' characteristics and surgical outcomes were compared between the two groups. RESULTS: There were no significant differences in clinical characteristics, including age, body mass index, and prior abdominal surgery between the two groups. The median vaginal reconstruction time tended to be longer in the Mercedes-Benz closure group than in the clamshell closure group (35.0 vs. 27.0 min, p = 0.102). No complications associated with vaginal reconstruction were identified. CONCLUSION: The surgical outcomes were comparable between Mercedes-Benz closure and clamshell closure. If vaginal reconstruction with clamshell closure is difficult, Mercedes-Benz closure is a valuable alternative technique.


Asunto(s)
Procedimientos Quirúrgicos Robotizados , Robótica , Neoplasias de la Vejiga Urinaria , Humanos , Femenino , Cistectomía/métodos , Neoplasias de la Vejiga Urinaria/cirugía , Vagina/cirugía , Escisión del Ganglio Linfático/métodos , Resultado del Tratamiento , Procedimientos Quirúrgicos Robotizados/métodos
13.
Int J Med Robot ; 19(4): e2513, 2023 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-36840720

RESUMEN

INTRODUCTION: Ureteral stent placement in robot-assisted intracorporeal ileal conduit formation (RICIC) is more challenging than extracorporeal urinary diversion. We developed a novel dedicated device called the Assistent guide for safe and smooth performance of ureteral stent placement by the patient-side surgeon (PSS). METHODS: This study reviewed the clinical records of 59 patients underwent RICIC with a total of 110 ureteral stent placements: 59 stents were placed using the Assistent guide, and 51 stents were placed using a suction tip. RESULTS: The stenting time was significantly shorter in the Assistent guide group than in the suction tip group. Even for beginners, the stenting time was significantly shorter. The PSSs' satisfaction score was significantly higher in the Assistent guide group. No complications associated with ureteral stent placement occurred. CONCLUSIONS: We showed the safety and efficacy of the Assistent guide for ureteral stent placement in RICIC.


Asunto(s)
Robótica , Obstrucción Ureteral , Derivación Urinaria , Humanos , Cistectomía , Stents , Obstrucción Ureteral/cirugía , Resultado del Tratamiento
14.
Asian J Endosc Surg ; 16(4): 724-730, 2023 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-37489628

RESUMEN

INTRODUCTION: This study was performed to evaluate the safety and efficacy of lymph node dissection (LND) during robot-assisted radical cystectomy (RARC) compared with open radical cystectomy (ORC). METHODS: From October 2003 to December 2021, 122 patients underwent LND during RARC and 103 patients underwent LND during ORC at Tokushima University Hospital and Tokushima Prefectural Central Hospital. We investigated the safety and efficacy of LND during RARC by comparing the surgical and oncological outcomes between the two groups. RESULTS: The patients were significantly older in the RARC than the ORC group. The operative time was significantly shorter and the estimated blood loss was significantly lower in the RARC than the ORC group. Although the lymph node yield was significantly higher in the RARC than the ORC group, there was no significant difference in lymph node positivity between the groups. There was no significant difference in the incidence of local recurrence or distant metastasis between the two groups. The 5-year survival rates (overall survival, cancer-specific survival, and recurrence-free survival) were not different between the RARC and ORC groups. CONCLUSION: This study suggests that the surgical and oncological safety and efficacy of LND during RARC are greater than those of LND during ORC. We believe that LND during RARC is a higher-quality procedure than LND during ORC.


Asunto(s)
Procedimientos Quirúrgicos Robotizados , Robótica , Neoplasias de la Vejiga Urinaria , Humanos , Cistectomía/métodos , Procedimientos Quirúrgicos Robotizados/métodos , Neoplasias de la Vejiga Urinaria/cirugía , Escisión del Ganglio Linfático/métodos , Resultado del Tratamiento , Complicaciones Posoperatorias/etiología
15.
Urol Case Rep ; 42: 102036, 2022 May.
Artículo en Inglés | MEDLINE | ID: mdl-35530562

RESUMEN

Ureteral stricture and obstruction following ureteroscopy are often difficult to treat. We report successful laser endoureterotomy using the cut-to-the-light technique for complete obstruction. A 44-year-old man developed complete ureteral obstruction at the ureteropelvic junction following transurethral ureterolithotripsy. We performed laser endoureterotomy and recovered the remaining stone by an antegrade percutaneous approach, while a second surgeon illuminated the obstruction with a ureteroscope by a retrograde approach. The minimally invasive cut-to-the-light technique might be an effective alternative to conventional invasive treatments, such as pyeloplasty, ureteroureterostomy and bowel interposition, in patients with complete ureteral obstruction in whom a ureteral stent cannot be placed.

16.
IJU Case Rep ; 5(6): 493-496, 2022 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-36341201

RESUMEN

Introduction: Leptomeningeal carcinomatosis in small cell carcinoma of the prostate is rare. Case presentation: A 69-year-old man visited our hospital due to dysuria and edema. Bilateral hydronephrosis and lymph node metastases due to a pelvic tumor were observed. Although the prostate-specific antigen level was normal, the tumor was suspected to originate from the prostate. He underwent percutaneous nephrostomy and prostate biopsy. Histopathology revealed small cell carcinoma accompanied by increased pro-gastrin-releasing peptide and neuron-specific enolase levels. After receiving systemic chemotherapy with carboplatin and etoposide and radiation therapy for prostate, these lesions gradually decreased in size, and tumor markers normalized. Ten months after the initial diagnosis, he developed consciousness disorder and seizure. Magnetic resonance imaging revealed leptomeningeal carcinomatosis without any other recurrences and elevated tumor markers. He died 4 weeks after these symptoms appeared. Conclusion: Careful monitoring of the central nervous system should be considered in small cell carcinoma of the prostate patients.

17.
Case Rep Oncol ; 15(2): 580-585, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35813692

RESUMEN

Mucinous tubular and spindle cell carcinoma (MTSCC) is a rare subtype of renal cell carcinoma. Although usually indolent, high-grade MTSCC has been reported to exhibit an aggressive clinical course. Herein, we report a case of high-grade renal MTSCC. An 86-year-old man visited our hospital with fever and fatigue. Based on contrast-enhanced computed tomography findings, the patient was diagnosed with clinical stage T2aN0M0 right renal cell carcinoma and underwent laparoscopic radical nephrectomy. Histological examination showed tubular to tubulopapillary structures accompanied by mucinous stroma, suggesting high-grade renal MTSCC. He remained recurrence- and metastasis-free 6 months after nephrectomy. Since high-grade renal MTSCC may have an aggressive clinical course, such patients should be observed carefully after radical nephrectomy.

18.
Case Rep Oncol ; 15(1): 369-375, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35529298

RESUMEN

A 72-year-old man visited our hospital due to pollakiuria and lower abdominal pain. Urinary cytology was positive, and cystoscopy revealed diffuse edematous nonpapillary tumor. We performed transurethral biopsy, and clinical stage T3 plasmacytoid variant of urothelial carcinoma (PUC) was diagnosed. Although we planned for radical cystectomy, peritoneal dissemination and lung and pelvic lymph node metastases appeared 3 weeks after the initial visit. We also planned for chemotherapy; however, the metastases rapidly progressed, and he died 7 weeks after the biopsy. PUC is rare and shows an aggressive clinical course and poor prognosis.

19.
J Robot Surg ; 16(2): 437-444, 2022 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-34081290

RESUMEN

The influence of the console surgeon on the feasibility and outcome of various robot-assisted surgeries has been evaluated. These variables may be partially affected by the skills of the patient-side surgeon (PSS), but this has not been evaluated using objective data. This study aimed to describe the surgical techniques of the PSS in robot-assisted radical cystectomy (RARC) and intracorporeal ileal conduit (ICIC) urinary diversion and objectively examine the changes in surgical outcomes with increasing PSS experience. During a 3-year period, 28 men underwent RARC and ICIC urinary diversion. Clinical characteristics and surgical outcomes were compared between patients who underwent surgery early (first half group) or late in the study period (second half group). The pre-docking incision enabled easy specimen removal. The glove port technique widened the working space of the PSS. The stay suture allowed the PSS to control the distal portion of the conduit, facilitating the passage of the ureteral stents. During stoma creation, pneumoperitoneum pressure was lost by opening the abdominal cavity. To overcome this problem, the robotic arm was used to lift the abdominal wall to maintain the surgical field and facilitate the PSS procedure. Compared with the first half group, the second half group had significantly shorter times for urinary diversion (202 min vs 148 min, p < 0.001), ileal isolation and anastomosis (73 min vs 45 min, p < 0.001), and stenting (23.0 min vs 6.5 min, p < 0.001). As the experience of the PSS increased, the time of the PSS procedures decreased.


Asunto(s)
Procedimientos Quirúrgicos Robotizados , Robótica , Cirujanos , Neoplasias de la Vejiga Urinaria , Derivación Urinaria , Cistectomía/métodos , Humanos , Masculino , Procedimientos Quirúrgicos Robotizados/métodos , Resultado del Tratamiento , Neoplasias de la Vejiga Urinaria/cirugía , Derivación Urinaria/métodos
20.
Case Rep Oncol ; 15(1): 462-468, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35702563

RESUMEN

The micropapillary variant of urothelial carcinoma (MPUC) is an aggressive form of urothelial carcinoma with high metastatic potential and a poor prognosis. Although various therapies have been reported, there is still no established treatment strategy for MPUC due to its rarity. The incidence of urinary tract malignancies is higher in patients undergoing hemodialysis (HD) than in healthy individuals. Here, we report the case of an 82-year-old man on HD with end-stage kidney disease who visited our hospital for macrohematuria. Cystoscopy followed by computed tomography and urine cytology revealed a sessile papillary tumor around the left bladder wall. We performed transurethral resection of the bladder tumor. Based on histopathological and imaging findings indicative of clinical-stage T3N0M0 MPUC, we performed radical cystectomy. Histopathology revealed a pathological stage T4aN0M0 MPUC. Two months after the cystectomy, the patient complained of constipation and painful defecation due to local recurrence and rectal invasion. While colostomy was performed to improve defecation 3 months after cystectomy, he did not receive any chemotherapy due to his progressively worsening general condition. Six months after cystectomy, he died following rapid metastases. Our findings, in this case, confirm that bladder cancer in HD patients tends to be pathologically more advanced. Therefore, regular screening is recommended for its early detection in HD patients.

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