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BACKGROUND/AIM: Complete surgical resection with negative margins remains the cornerstone for curative treatment of rectal cancer; however, local recurrence can pose a significant challenge. Herein, we aimed to introduce a novel surgical technique for combined resection of the pubic arch and ischial bone in the context of treating recurrent rectal cancer. CASE REPORT: We present a case of a patient with a fourth local recurrence of rectal cancer, with no evidence of distant metastasis. The tumor directly invaded the posterior wall of the pubic arch. To achieve complete tumor resection, an osteotomy was performed using a thread wire saw at the bilateral pubic rami and ischial bones. Intraoperative frozen section analysis (rapid tissue examination) was conducted on tissue samples from the lateral margins of the planned osteotomy line. Samples were negative for adenocarcinoma (cancerous cells). The combined resection of the pubic arch and ischial bone was successfully performed with negative margins for adenocarcinoma, as confirmed by frozen section analysis. CONCLUSION: Mastery of the surgical technique for combined resection of the pubic arch and ischial bone may be clinically significant for achieving complete resection in cases of multiple resections for locally recurrent rectal cancer.
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Ísquio , Recidiva Local de Neoplasia , Osso Púbico , Neoplasias Retais , Humanos , Neoplasias Retais/cirurgia , Neoplasias Retais/patologia , Recidiva Local de Neoplasia/cirurgia , Recidiva Local de Neoplasia/patologia , Osso Púbico/cirurgia , Osso Púbico/patologia , Ísquio/cirurgia , Ísquio/patologia , Masculino , Osteotomia/métodos , Pessoa de Meia-Idade , Idoso , Adenocarcinoma/cirurgia , Adenocarcinoma/patologia , FemininoRESUMO
CASE PRESENTATION: A 61-year-old female was referred to our hospital with a neoplastic lesion in the duodenum. Computed tomography with contrast enhancement revealed a 10-mm tumor in the duodenum. Upper gastrointestinal endoscopy revealed a submucosal tumor-like lesion in the descending part of the duodenum. Endoscopic ultrasound revealed a well-defined hypoechoic tumor. Biopsy and immunohistochemical findings including negative Synaptophysin and Chromogranin A staining and positive Trypsin and BCL10 staining suggested a carcinoma with acinar cell differentiation. Pancreatoduodenectomy was performed, and the resected specimen had a 15-mm solid nodule in the submucosal layer of the duodenum. Pancreatogram of the resected specimen revealed a tumor localized in the accessory papilla region. In histopathological examination, the tumor was found in the submucosa of the duodenum with pancreatic tissue present nearby, and these were separated from the pancreatic parenchyma by the duodenal muscle layer. These findings led to a diagnosis of acinar cell carcinoma originating from the accessory papilla of the duodenum. CONCLUSION: Acinar cell carcinoma originating from the accessory papilla of the duodenum is exceptionally rare, with no reported cases to date. The origin was considered to be pancreatic tissue located in the accessory papilla region.
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BACKGROUND/AIM: Stoma prolapse is a common complication in the late phase after stoma creation. With advances in chemotherapy, a double-orifice colostomy or ileostomy and chemotherapy are used to treat primary unresectable colorectal cancer. Preoperative therapy with a double-orifice colostomy or ileostomy is performed to aid primary colorectal cancer miniaturization. Therefore, the number of stoma prolapses will likely increase in the future. Previous reports on the repair of stoma prolapse focused on unilateral stoma prolapse of loop colostomy, and there are no reports about the bilateral stoma prolapse of loop colostomy or ileostomy. CASE REPORT: We report a novel repair technique for oral and anal side (bilateral) stoma prolapse of a loop colostomy with the stapled modified Altemeier method using indocyanine green (ICG) fluorescence imaging considering the distribution of marginal artery in preventing marginal artery injury which has considerable clinical significance. CONCLUSION: Our novel technique for the oral and anal side prolapse of a loop colostomy is considered effective and safe.
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Neoplasias Colorretais , Estomas Cirúrgicos , Humanos , Colostomia/métodos , Verde de Indocianina , Ileostomia/métodos , Prolapso , Complicações Pós-Operatórias/cirurgiaRESUMO
Ureteroenteric anastomotic strictures (UEAS) are typical complications after creating an ileal conduit for total pelvic exenteration (TPE) of rectal tumors. We report the ileal conduit for reconstruction in three patients, in the age-range of 47-73 years. Case 1 was when a left-sided UEAS had sufficient length of ureter for anastomosis, Case 2 was a right-sided UEAS with sufficient length of ureter for anastomosis, and Case 3 was a left-sided UEAS with insufficient length of ureter for anastomosis. There were no complications after operation and no recurrence of UEAS. It is important to learn the open surgical procedures for repair of a benign UEAS after TPE of rectal cancers. This has fewer complications and is safe in the long term.
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Exenteração Pélvica , Neoplasias Retais , Ureter , Derivação Urinária , Humanos , Pessoa de Meia-Idade , Idoso , Ureter/cirurgia , Exenteração Pélvica/efeitos adversos , Constrição Patológica/etiologia , Constrição Patológica/cirurgia , Derivação Urinária/efeitos adversos , Derivação Urinária/métodos , Neoplasias Retais/cirurgia , Anastomose Cirúrgica/efeitos adversos , Complicações Pós-Operatórias/cirurgia , Complicações Pós-Operatórias/etiologiaRESUMO
BACKGROUND/AIM: Hyperchloremic metabolic acidosis after total pelvic exenteration (TPE) is relatively rare. Urinary diversion of the ileal conduit during TPE can result in increased urine reabsorption leading to hyperchloremic metabolic acidosis. We developed a new technique for the retrograde catheterization of a ureteral stent into an ileal conduit to treat hyperchloremic metabolic acidosis. CASE REPORT: A 70-year-old man underwent TPE for locally recurrent rectal cancer. Multiple episodes of complications, such as hyperchloremia and metabolic acidosis, occurred. Effective drainage of urine from the ileal conduit is crucial. With collaboration between an endoscopist and a radiologist, we developed a novel method for retrograde catheterization of the ureteral stent into an ileal conduit for hyperchloremic metabolic acidosis after TPE. The patient's condition quickly improved after the procedure. CONCLUSION: Our novel technique of retrograde catheterization of a ureteral stent into an ileal conduit for hyperchloremic metabolic acidosis could be adopted worldwide, as it is effective and safe.
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Acidose , Exenteração Pélvica , Idoso , Humanos , Masculino , Acidose/etiologia , Acidose/terapia , Drenagem , Exenteração Pélvica/efeitos adversos , Radiologistas , StentsRESUMO
The frequency of resection for the recurrence of colorectal cancer has not been investigated in previous studies. Likewise, the related postoperative complications and the limit for indicating surgical resection has not been reported. Herein, we reported the complications of a highly frequent surgical approach for rectal cancer recurrence, i.e., exceeding three reoperations, based on our clinical experience. We included 15 cases exceeding two operations for the local recurrence of colorectal cancer from 2014 to 2019. We examined the postoperative complications classified as Clavien?Dindo IIIb. The positive rates of the complications were 0 (0.0%), 0 (0.0%), 2 (13.3%), 3 (37.5%), and 0 (0.0%) for the primary, 1st recurrent, 2nd recurrent, 3rd recurrent, and 4th recurrent operation group (p=0.027), respectively. It is important to exercise caution in handling cases exceeding two reoperations (exceeding three reoperations including the primary operation). J. Med. Invest. 70 : 369-376, August, 2023.
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Recidiva Local de Neoplasia , Neoplasias Retais , Humanos , Reoperação , Resultado do Tratamento , Recidiva Local de Neoplasia/cirurgia , Estudos Retrospectivos , Neoplasias Retais/cirurgia , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/cirurgiaRESUMO
BACKGROUND: This retrospective study aimed to demonstrate surgical operative approach of total pelvic exenteration combined with sacral resection with rectal cancer and elucidate the relationships between the level of sacral resection and short-term outcomes. METHODS: Twenty cases were selected. Data regarding sex, age, body mass index, neoadjuvant therapy, location of sacral resection ("Upper" or "Lower" relative to the level between the 3rd and 4th sacral segment), operative time, bleeding, and curability (R0/R1) were collected and compared to determine their association with complications exhibiting a Clavien-Dindo grade III. RESULTS: The complication rate was significantly higher for recurrent cancers (n = 10, 76.9%) than for primary cancers (n = 1, 14.3%) (P = .007), and for "Upper" resection (n = 8, 72.7%) than for "Lower" resection (n = 3, 33.3%) (P = .078). Significant differences were observed when complication rates for "Lower" and primary cancer resection (n = 3, .0%) were compared between "Upper" and recurrent cancers (n = 8, 100.0%) (P = .007). CONCLUSION: In patients with recurrent rectal cancer, "Upper" sacral resection during total pelvic exenteration is associated with a high complication rate, highlighting the need for careful monitoring.
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Exenteração Pélvica , Neoplasias Retais , Humanos , Estudos Retrospectivos , Recidiva Local de Neoplasia/epidemiologia , Recidiva Local de Neoplasia/cirurgia , Neoplasias Retais/cirurgia , Região Sacrococcígea , Resultado do TratamentoRESUMO
BACKGROUND: Tranexamic acid (TXA) may reduce intraoperative blood loss, but it has not been investigated in pancreaticoduodenectomy (PD). METHODS: A pragmatic, multicentre, randomized, blinded, placebo-controlled trial was conducted. Adult patients undergoing planned PD for biliary, duodenal, or pancreatic diseases were randomly assigned to TXA or placebo groups. Patients in the TXA group were administered 1 g TXA before incision, followed by a maintenance infusion of 125 mg/h TXA. Patients in the placebo group were administered the same volume of saline as those in the placebo group. The primary outcome was blood loss during PD. The secondary outcomes included perioperative blood transfusions, operating time, morbidity, and mortality. RESULTS: Between September 2019 and May 2021, 218 patients were randomly assigned and underwent surgery (108 in the TXA group and 110 in the placebo group). Mean intraoperative blood loss was 659 ml in the TXA group and 701 ml in the placebo group (mean difference -42 ml, 95 per cent c.i. -191 to 106). Of the 218 patients, 202 received the intervention and underwent PD, and the mean blood loss during PD was 667 ml in the TXA group and 744 ml in the placebo group (mean difference -77 ml, 95 per cent c.i. -226 to 72). The secondary outcomes were comparable between the two groups. CONCLUSION: Perioperative TXA use did not reduce blood loss during PD. REGISTRATION NUMBER: jRCTs041190062 (https://jrct.niph.go.jp).
Removing part of the pancreas is an operation with a risk of major blood loss. Tranexamic acid is a drug thought to reduce blood loss. This study asked the question, 'Does tranexamic acid reduce blood loss during surgery on the pancreas?' Half of patients received tranexamic acid during surgery. The other half received only standard care. This study showed that tranexamic acid did not decrease the blood loss during the surgery and may have little effect in patients having a pancreaticoduodenectomy.
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Antifibrinolíticos , Ácido Tranexâmico , Adulto , Humanos , Ácido Tranexâmico/uso terapêutico , Antifibrinolíticos/uso terapêutico , Perda Sanguínea Cirúrgica/prevenção & controle , Pancreaticoduodenectomia/efeitos adversos , Método Duplo-Cego , Resultado do TratamentoRESUMO
BACKGROUND: No studies to date have determined the impact of pancreatic fat infiltration on postoperative pancreatic fistula (POPF) occurrence in patients undergoing invagination pancreaticojejunostomy (IV-PJ). METHODS: The medical records of patients with a soft pancreas who underwent pancreatoduodenectomy followed by IV-PJ were reviewed . The pancreatic fat ratio on computed tomography (CT) images (I-PFR) was determined using preoperative CT and verified by histologic examination. The relationship between the I-PFR and POPF occurrence was determined. Patients were classified into 2 groups based on I-PFR value (fatty and non-fatty pancreas). Postoperative outcomes were compared between the two groups, and specifically among patients who developed POPF. RESULTS: Of 221 patients, POPF occurred in 67 (30.3%). I-PFR was positively correlated with histologic-calculated fat ratio (ρ = 0.517, p < 0.001). This index was shown to be an independent predictor of POPF. Based on an I-PFR cut-off value of 3.2%, 92 patients were classified in the fatty pancreas group. Subgroup analysis of the patients who developed POPF showed that incidence of abscess formation and hemorrhage tended to be higher in patients with fatty pancreas than in those with non-fatty pancreas. CONCLUSIONS: Pancreatic fat infiltration is highly associated with POPF and possibly causes subsequent serious complications in patients undergoing IV-PJ.
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Fístula Pancreática , Pancreaticojejunostomia , Humanos , Fístula Pancreática/diagnóstico por imagem , Fístula Pancreática/etiologia , Fístula Pancreática/epidemiologia , Pancreaticojejunostomia/efeitos adversos , Pancreaticojejunostomia/métodos , Pancreaticoduodenectomia/efeitos adversos , Pancreaticoduodenectomia/métodos , Pâncreas/cirurgia , Complicações Pós-Operatórias/diagnóstico por imagem , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/epidemiologia , Estudos RetrospectivosRESUMO
BACKGROUND: The prognostic significance of peritoneal lavage cytology (PLC) in patients with pancreatic ductal adenocarcinoma (PDAC) remains controversial. The purpose of this study was to evaluate the prognostic impact of PLC status in PDAC patients. METHODS: Patients intending to undergo resection for PDAC between 2007 and 2020 were included. Survival was compared among patients who underwent resection with negative or positive PLC status and those who did not undergo resection. Univariable and multivariable analyses were conducted to evaluate the prognostic impact of positive PLC status. A systematic literature review was performed to evaluate the correlation between prognosis and the positive PLC rate. RESULTS: A total of 480 patients formed the study cohort and were divided as follows: 438 in the negative PLC group, 18 in the positive PLC group, and 24 in the no resection group. Although the median survival time significantly differed between the negative and positive PLC groups (35.7 vs. 13.6 months, P < 0.001), it did not significantly differ between the positive PLC and no resection groups (13.6 vs. 12.2 months, P = 0.605). Multivariable analyses demonstrated that positive PLC status (hazard ratio = 3.54, 95% confidence interval = 1.97-6.38, P < 0.001) was the strongest poor prognostic factor. Based on statistical analyses for the systematic review, the prognostic impact of positive PLC status weakened significantly as the institutional positive PLC rate increased (P = 0.044). CONCLUSIONS: Resection did not improve the prognosis of patients with positive PLC status in our cohort. The institutional positive PLC rate may be a good reference for surgical indication in these patients.
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Carcinoma Ductal Pancreático , Neoplasias Pulmonares , Neoplasias Pancreáticas , Carcinoma Ductal Pancreático/patologia , Humanos , Neoplasias Pulmonares/patologia , Estadiamento de Neoplasias , Neoplasias Pancreáticas/patologia , Lavagem Peritoneal , Prognóstico , Estudos Retrospectivos , Neoplasias PancreáticasRESUMO
There are two techniques for a spleen-preserving distal pancreatectomy (SPDP): SPDP with splenic vessel preservation, and SPDP with splenic vessel resection. In some cases, although the splenic artery (SpA) can be preserved, the splenic vein (SpV) must be resected. We report the short- and long-term outcomes of three patients who underwent a new technique of laparoscopic SPDP with SpA preservation and SpV resection (SPDP-VRes). A grade B pancreatic fistula, which occurred in two patients, was successfully treated with drainage tube management. In all cases, the omental branches of the left gastroepiploic vein functioned as a drainage vein, and there was no splenomegaly, thrombocytopenia, or varix formation during the follow-up period (19 months to 5 years). Patients undergoing laparoscopic SPDP-VRes had no severe complications during the follow-up period; preserving the left omental branch is a key to this procedure. Laparoscopic SPDP-VRes might be a useful treatment option for patients undergoing SPDP.
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Primary hepatocellular carcinoma (HCC) in patients <30 years old is extremely rare. In younger patients, HCC develops against a background of persistent hepatitis B virus infection. We herein report a 23-year-old woman with HCC with all-negative hepatitis virus markers developing in an apparently healthy liver. Imaging studies showed a 50-mm hypervascular mass in segment 4 of the left liver lobe, compatible with HCC. The patient underwent surgical resection. A histological examination showed the presence of poorly differentiated HCC. The patient was diagnosed with HCC developing in a healthy liver. This is an extremely rare case of non-B non-C HCC.
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Carcinoma Hepatocelular , Hepatite B , Neoplasias Hepáticas , Adulto , Carcinoma Hepatocelular/diagnóstico por imagem , Carcinoma Hepatocelular/cirurgia , Feminino , Hepatite B/diagnóstico , Vírus da Hepatite B , Humanos , Neoplasias Hepáticas/diagnóstico por imagem , Neoplasias Hepáticas/cirurgia , Adulto JovemRESUMO
We describe a case of repair of the antegrade anastomosis between the "ileal segment" and amputated ureter for recurrent rectal cancer, in which some postoperative complications occurred but eventually resolved. If the length of the ureter is inadequate for end-to-end anastomosis, an ileal segment can be used as a conduit. This surgical technique is not difficult because an ileal conduit is typically created during total pelvic exenteration of rectal cancers. Therefore, anastomosing the ureter to an "ileal segment" is easy and feasible. Hence, we consider that knowledge of this technique would be beneficial for surgical oncologists who perform colorectal surgeries.
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Neoplasias Retais , Ureter , Anastomose Cirúrgica , Humanos , Íleo/cirurgia , Recidiva Local de Neoplasia/cirurgia , Neoplasias Retais/cirurgia , Ureter/cirurgiaRESUMO
The purpose of this study is to clarify the survival benefit and acceptable extent of surgery for very elderly patients with pancreatic cancer. Patients (n=55) ≥80 years with resectable pancreatic cancer were studied. 29 underwent pancreatectomy, 16 underwent chemotherapy, and 10 received best supportive care. Uni and multivariate analysis were performed to explore predictive factors for overall survival (OS) with surgery and chemotherapy (n=45). Postoperative survival of PD (pancreatoduodenectomy) and DP (distal pancreatectomy) and of PD-PVR (PD with portal vein resection) and PD were compared. OS was equivalent with surgery and chemotherapy (median survival time [MST]; 685 vs. 626 days, respectively; p=0.057); 6 patients surivived ≥3 years after surgery. Pancreatectomy was not a prognostic factor. Survival was significantly worse with PD-PVR than with PD, but equivalent with PD and DP. Within 2 years after PD-PVR, 8 patients have died. Surgery was not a positive prognostic factor for very elderly patients with pancreatic cancer, but was the sole chance for survival ≥3 years. Indication for PD-PVR for very elderly patients should be determined more cautiously compared with that for non-elderly patients.
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Pancreatectomia , Neoplasias Pancreáticas , Idoso , Humanos , Neoplasias Pancreáticas/tratamento farmacológico , Neoplasias Pancreáticas/cirurgia , Pancreaticoduodenectomia , Estudos Retrospectivos , Neoplasias PancreáticasRESUMO
BACKGROUND: It is unclear whether hepaticojejunostomy with a continuous suture is suitable for patients with a non-dilated bile duct. METHODS: Medical records of patients who underwent pancreatoduodenectomy between 2003 and 2013 were retrospectively reviewed, focusing on the incidence of benign anastomotic stenosis and its relationship with suture method (continuous vs interrupted) and common hepatic duct size. RESULTS: Among 336 patients, 172 had a non-dilated (<8 mm) duct, and the remaining 164 had a dilated duct. Benign stenosis occurred in 12.2% (21/172) in the former, but in only 0.6% (1/164) in the latter (p < 0.001; median follow-up period, 43.5 months). Thus, further analysis was conducted in the 172 patients with a non-dilated duct, among whom 116 received a continuous suture and 56 received an interrupted suture. The cumulative incidence of benign anastomotic stenosis was significantly higher in patients who received a continuous suture vs those who received an interrupted suture (15.6% vs 1.8%, respectively, at 3 years; p = 0.006). Multivariable analysis identified continuous suture, male gender, and cholangitis (within 3 months after surgery) as independent risk factors for benign stenosis. CONCLUSIONS: In this observational study, the use of a continuous suture was associated with benign anastomotic stricture in patients with a non-dilated hepatic duct.
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Pancreaticoduodenectomia , Complicações Pós-Operatórias , Anastomose Cirúrgica/efeitos adversos , Ductos Biliares/diagnóstico por imagem , Ductos Biliares/cirurgia , Constrição Patológica , Ducto Hepático Comum , Humanos , Masculino , Pancreaticoduodenectomia/efeitos adversos , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/cirurgia , Estudos Retrospectivos , Fatores de Risco , SuturasRESUMO
PURPOSE: Retroperitoneal sarcoma (RPS) is a rare tumor with a poor prognosis and is often undetected until it is significantly enlarged. While surgical resection remains the primary treatment, there is little research on its benefits, especially that concerning the reoperation of recurrent disease. This study investigated the impact of surgical procedures, especially reoperation of recurrent RPS, on prognosis. METHODS: This retrospective study included 51 patients who underwent radical resection surgery (R0 status) for primary or recurrent RPS without distant metastasis. Patient outcomes and prognosis were defined in terms of the clinicopathologic factors and surgical techniques performed. RESULTS: In all cases, the 5-year disease-free survival (DFS) rate was 28.2%, 5-year overall survival rate was 89.9%, and 5-year no residual liposarcoma rate was 54.3% after operation and re-reoperation. There was a statistically significant difference between the 5-year DFS rate and 5-year no residual liposarcoma rate due to frequent re-reoperation (p = 0.011). On univariate analysis of primary and recurrent lesions, the histological type and the number of organs involved were identified as statistically significant prognostic factors. Patients with well-differentiated liposarcomas had a statistically better prognosis than those with other cancer types (primary RPS, p = 0.028; recurrence, p = 0.024). CONCLUSIONS: Aggressive and frequent resection of recurrent RPS with combined resection of adjacent organs contributes to long-term survival. The establishment of a surgical strategy for RPS will require a prospective study.
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Neoplasias Retroperitoneais , Sarcoma , Humanos , Recidiva Local de Neoplasia/cirurgia , Prognóstico , Estudos Prospectivos , Neoplasias Retroperitoneais/cirurgia , Estudos Retrospectivos , Sarcoma/cirurgia , Taxa de SobrevidaRESUMO
PURPOSE: Type 4 gastric cancer (GC) has a very poor prognosis even after curative resection, and the survival benefit of splenectomy for splenic hilar lymph node (LN; #10) dissection in type 4 GC remains equivocal. This study aimed to clarify the clinical significance of splenectomy for #10 dissection in patients with type 4 GC. MATERIALS AND METHODS: The data of a total of 56 patients with type 4 GC who underwent total gastrectomy with splenectomy were retrospectively analyzed. Postoperative morbidity, state of LN metastasis, survival outcomes, and therapeutic value index (TVI) of each LN station were evaluated. TVI was calculated by multiplying the incidence of LN metastasis at each nodal station and the 5-year overall survival (OS) of patients who had metastasis to each node. RESULTS: Overall, the postoperative morbidity rate was 28.6%, and the incidence of #10 metastasis in the patients was 28.6%. The 5-year OS rate for all patients was 29.9%, and most patients developed peritoneal recurrence. Moreover, the 5-year OS rates with and without #10 metastasis were 6.7% and 39.1% (median survival time, 20.4 vs. 46.0 months; P=0.006). The TVI of #10 was as low as 1.92. CONCLUSIONS: The clinical significance of splenectomy in the dissection of #10 for type 4 GC is limited and splenectomy for splenic hilar dissection alone should be omitted.
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BACKGROUND: Postoperative bleeding originating from pseudoaneurysms after radical gastrectomy is not common, but it can be fatal. In particular, delayed bleeding that occurs after the seventh postoperative day is rare. CASE PRESENTATION: A 54-year-old man underwent laparoscopic distal gastrectomy, D2 lymph node dissection, and Roux en-Y reconstruction for duodenal neuroendocrine tumors. Drainage was performed for a postoperative pancreatic fistula and abdominal abscess. On the 28th postoperative day, he passed a large amount of bloody stool; therefore, emergency esophagogastroduodenoscopy (EGD) and angiography were performed. However, neither examination demonstrated any bleeding foci or pseudoaneurysm. He was conservatively observed and discharged on the 50th postoperative day. Approximately 1 year after the surgery, he passed a bloody stool and experienced hemorrhagic shock. An EGD revealed exposed blood vessels at the duodenal blind end. His condition was diagnosed as a pseudoaneurysm arising from gastroduodenal artery, which ruptured into the duodenum, based on abdominal contrast-enhanced computed tomography findings. Emergency angiography was performed, and the pseudoaneurysm and artery were successfully embolized. CONCLUSIONS: This case illustrates that there is a possibility of delayed bleeding even 1 year after gastrectomy. Such cases may be serious and require immediate and careful management.