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1.
Acta Med Okayama ; 78(4): 307-312, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-39198984

RESUMO

The Briganti nomogram (cut-off value 5%) is commonly used to determine the indications for pelvic lymph node dissection (PLND) in patients with prostate cancer. We retrospectively analyzed the potential oncological benefit of PLND based on the 5% cut-off value on the Briganti nomogram. We obtained the data from the Medical Investigation Cancer Network (MICAN) Study, which included 3,463 patients who underwent a radical prostatectomy (RP) at nine institutions in Japan between 2010 and 2020. We included patients with Briganti scores ≥ 5% and a follow-up period ≥6 months and excluded patients categorized in the very high-risk group (based on NCCN categories); a final total of the cases of 1,068 patients were analyzed. The biochemical recurrence (BCR)-free survival was significantly worse in the patients who underwent PLND compared to those who did not (p=0.019). A multivariate analysis showed that high prostate-specific antigen (PSA) levels (p<0.001) and an advanced T-stage (p=0.018) were significant prognostic factors for BCR, whereas PLND had no effect on BCR (p=0.059). Thus, PLND in patients with prostate cancer whose Briganti score was 5% did not provide any oncological benefit. Further research is necessary to determine the indication criteria for conducting PLND.


Assuntos
Excisão de Linfonodo , Nomogramas , Neoplasias da Próstata , Humanos , Masculino , Neoplasias da Próstata/cirurgia , Neoplasias da Próstata/patologia , Idoso , Pessoa de Meia-Idade , Japão , Estudos Retrospectivos , Prostatectomia/métodos , Pelve/cirurgia , Metástase Linfática
2.
BMC Urol ; 21(1): 124, 2021 Sep 08.
Artigo em Inglês | MEDLINE | ID: mdl-34496819

RESUMO

BACKGROUND: Currently, immunotherapy is indicated for patients with metastatic RCC or unresectable RCC, but there is no indication for immunotherapy in the neoadjuvant setting. We report a case in which the combined use of nivolumab and ipilimumab and sequential TKI therapy enabled surgical treatment. CASE PRESENTATION: A 71-year-old female was diagnosed with a metastatic clear-cell renal cell carcinoma with a level IV tumor thrombus. She was started on nivolumab-ipilimumab therapy, and was switched to pazopanib monotherapy because the tumor thrombus progressed within the right atrium. The tumor shrank to resectable status with sequential therapy. She then underwent right nephrectomy and thrombectomy. Pathological analysis showed 10-20% residual tumor in the primary tumor, but no viable cells in tumor thrombus. She remains clinically disease-free 1 year after surgery. CONCLUSION: This case suggests the utility of sequential immune-targeted therapy as neoadjuvant therapy in advanced renal cell carcinoma.


Assuntos
Antineoplásicos Imunológicos/administração & dosagem , Carcinoma de Células Renais/terapia , Neoplasias Renais/terapia , Terapia Neoadjuvante , Nefrectomia , Proteínas Tirosina Quinases/antagonistas & inibidores , Idoso , Carcinoma de Células Renais/tratamento farmacológico , Carcinoma de Células Renais/patologia , Carcinoma de Células Renais/cirurgia , Intervalo Livre de Doença , Feminino , Humanos , Ipilimumab/administração & dosagem , Neoplasias Renais/tratamento farmacológico , Neoplasias Renais/patologia , Neoplasias Renais/cirurgia , Nivolumabe/administração & dosagem
3.
World J Surg Oncol ; 19(1): 40, 2021 Feb 04.
Artigo em Inglês | MEDLINE | ID: mdl-33541337

RESUMO

BACKGROUND: Intraoperative urinary collecting system entry (CSE) in robot-assisted partial nephrectomy (RAPN) may cause postoperative urinary leakage and extend the hospitalization. Therefore, identifying and firmly closing the entry sites are important for preventing postoperative urine leakage. In RAPN cases expected to require CSE, we insert a ureteral catheter and inject dye into the renal pelvis to identify the entry sites. We retrospectively analyzed the factors associated with intraoperative CSE in RAPN and explored the indications of intraoperative ureteral catheter indwelling in RAPN. METHODS: Of 104 Japanese patients who underwent RAPN at our institution from August 2016 to March 2020, 101 were analyzed. The patients were classified into CSE and non-CSE groups. The patients' background characteristics, RENAL Nephrometry Score (RNS), and surgical outcomes were analyzed. RESULTS: Intraoperative CSE was observed in 41 patients (41%). The CSE group had a significantly longer operative time, console time, ischemic time, and hospital stay than the non-CSE group. In a multivariable analysis, the N-score (odds ratio [OR] = 3.9, P < 0.05) and RNS total score excluding the L-score (OR = 3.1, P < 0.05) were associated with CSE. In a logistic regression analysis, CSE showed a moderate correlation with the RNS total score excluding the L-score (AUC 0.848, cut-off 5, sensitivity 0.83, specificity 0.73). CONCLUSION: A ureteral catheter should not be placed in patients with an RNS total score (excluding the L-score) of ≤ 4.


Assuntos
Neoplasias Renais , Procedimentos Cirúrgicos Robóticos , Robótica , Humanos , Neoplasias Renais/cirurgia , Nefrectomia/efeitos adversos , Prognóstico , Estudos Retrospectivos , Resultado do Tratamento , Cateteres Urinários
4.
Cancer Med ; 10(22): 7968-7976, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-34562303

RESUMO

BACKGROUND: Patients with very-high-risk prostate cancer (VHRPCa) have earlier biochemical recurrences (BCRs) and higher mortality rates. It remains unknown whether extended robot-assisted laparoscopic prostatectomy (eRALP) without neoadjuvant or adjuvant therapy can improve the outcomes of VHRPCa patients. We aimed to determine the feasibility and efficacy of eRALP as a form of monotherapy for VHRPCa. METHODS: Data from 76 men who were treated with eRALP without neoadjuvant/adjuvant therapy were analyzed. eRALP was performed using an extrafascial approach. Extended pelvic lymph node (LN) dissection (ePLND) included nodes above the external iliac axis, in the obturator fossa, and around the internal iliac artery up to the ureter. The outcome measures were BCR, treatment failure (defined as when the prostate-specific antigen level did not decrease to <0.1 ng/ml postoperatively), and urinary continence (UC). Kaplan-Meier, logistic regression, and Cox proportional-hazards model were used to analyze the data. RESULTS: The median operative time was 246 min, and median blood loss was 50 ml. Twenty-one patients experienced postoperative complications. Median follow-up was 25.2 months; 19.7% of patients had treatment failure. Three-year, BCR-free survival rate was 62.0%. Castration-resistant prostate cancer-free survival rate was 86.1%. Overall survival was 100%. In 55 patients who had complete postoperative UC data, 47 patients (85.5%) recovered from their UC within 12 months. Clinical stage cT3b was an independent preoperative treatment failure predictor (p = 0.035), and node positivity was an independent BCR predictor (p = 0.037). The small sample size and retrospective nature limited the study. CONCLUSIONS: This approach was safe and produced acceptable UC-recovery rates. Preoperative seminal vesicle invasion is associated with treatment failure, and pathological LN metastases are associated with BCR. Therefore, our results may help informed decisions about neoadjuvant or adjuvant therapies in VHRPCa cases. PRECIS: Extended robot-assisted laparoscopic prostatectomy and extended pelvic lymph node dissection without adjuvant therapy is safe and effective for some patients with very-high-risk prostate cancer. The clinical stage and node positivity status predicted monotherapy failure, which may indicate good adjuvant therapy candidate.


Assuntos
Laparoscopia/métodos , Pelve/patologia , Prostatectomia/métodos , Neoplasias da Próstata/cirurgia , Robótica/métodos , Idoso , Humanos , Excisão de Linfonodo/métodos , Masculino , Neoplasias da Próstata/mortalidade , Neoplasias da Próstata/patologia , Estudos Retrospectivos , Fatores de Risco , Análise de Sobrevida
5.
Plant Cell Physiol ; 45(9): 1342-5, 2004 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-15509860

RESUMO

We studied the effects of 2,3-butanedione monoxime (BDM) on the cytoplasmic streaming of Chara corallina and on the motility of myosin prepared from the same plant to examine whether this reagent really affects the plant class XI myosin. It was found that BDM inhibited both cytoplasmic streaming and the motility of myosin at a very similar concentration range (10-100 mM). BDM introduced directly into tonoplast-free cells also inhibited cytoplasmic streaming. These results suggested that effect of BDM on cytoplasmic streaming was exerted through myosin and not through ion channels at least in Chara corallina, though a very high concentration of BDM was required.


Assuntos
Chara/efeitos dos fármacos , Diacetil/análogos & derivados , Diacetil/farmacologia , Miosinas/fisiologia , Chara/metabolismo , Chara/fisiologia , Citoplasma/metabolismo , Miosinas/metabolismo
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