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BACKGROUND: Colonic metastasis from lung cancer is very rare and is typically associated with poor prognosis. Herein, we report the case of a patient who achieved intermediate-term survival using a multimodal treatment approach, including chemotherapy, immunotherapy, radiotherapy, and surgical resection for obstructive colonic metastasis from primary lung adenocarcinoma. CASE PRESENTATION: A woman in her 50s presented with anemia and a positive fecal occult blood test. Computed tomography revealed a tumor in the right upper lobe of the lung with mediastinal lymphadenopathy and wall thickening in the transverse colon. Colonoscopy revealed a stricture involving 50% of the colonic lumen. Biopsy revealed a poorly differentiated adenocarcinoma positive for CK-7 and TTF-1, very focally positive for napsin A, and negative for CK-20 and CDX-2. Furthermore, positron emission tomography/CT (PET/CT) showed a high maximum standardized uptake value (SUVmax) of 8.2 in the iliac bone. Based on these findings, the patient was diagnosed with primary lung adenocarcinoma with simultaneous metastasis to the transverse colon and iliac bone (cT4N3M1c, cStage IVB). After receiving first-line chemotherapy with atezolizumab, pemetrexed, and carboplatin, the tumors shrank after 4 courses. Subsequently, the patient received maintenance therapy with atezolizumab and pemetrexed. However, the tumor enlarged after 10 courses. Second-line chemotherapy with docetaxel and ramucirumab (3 courses) failed to achieve tumor reduction. Colonoscopy revealed an impassable colonic tumor. Nineteen months after diagnosis, surgery was planned for imminent intestinal obstruction. We determined that the colonic tumor was resectable, because laparoscopic exploration revealed no other metastases. The tumor was resected by partial colectomy with ileocolonic anastomosis. The postoperative course was uneventful. Pathological examination revealed a resection margin that was negative for malignancy, and the histological type was consistent with metastatic lung adenocarcinoma. The patient then received nab-paclitaxel therapy; however, she developed symptoms of superior vena cava syndrome after 3 courses. The patient received palliative irradiation (30 Gy/10 fr) followed by nivolumab. She soon developed a solitary brain metastasis, and stereotactic irradiation was planned. After 3 courses of nivolumab, the metastasis was reduced significantly, and stereotactic brain irradiation was canceled. The lung tumor and mediastinal lymphadenopathy gradually shrank, and the patient survived for 13 months after surgery without disease progression. CONCLUSIONS: In this case, surgical resection of colonic metastasis from primary lung adenocarcinoma may have contributed to the short-term prognosis as a bridge-to-next available multimodal treatment.

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Introduction: The peribiliary gland is an accessory bile duct gland. Hyperplasia of these tissues may lead to elevation of the mucosa in the bile ducts and bile duct stenosis. We herein report a case of peribiliary gland hyperplasia that required preoperative differentiation from bile duct cancer, with a discussion of the literature. Case Presentation: The patient had an adenomatous lesion in the ascending colon that was difficult to treat endoscopically; therefore, surgery was planned. Preoperative abdominal ultrasonography revealed a bile duct tumor, and endoscopic ultrasonography revealed a mass lesion around the confluence of the cystic duct. Computed tomography revealed localized wall thickening in the middle bile duct, and the upstream bile ducts were slightly dilated. In addition, continuous thickening of the bile duct wall from the gallbladder to the confluence of the cystic duct was observed. No distant metastases, such as liver metastases, or nearby enlarged lymph nodes were observed. Endoscopic retrograde cholangiopancreatography and magnetic resonance cholangiopancreatography revealed a papillary-like elevated lesion in the bile duct near the confluence of the cystic duct, and a biopsy and bile cytology from the same area showed no malignant findings. As a result, the possibility that the patient had gallbladder or bile duct cancer could not be ruled out; therefore, a policy of surgery together with the ascending colon tumor was decided after receiving sufficient informed consent. During surgery, the patient underwent extrahepatic bile duct resection, reconstruction of the biliary tract using the Roux-en-Y method, and right hemicolectomy. Both duodenal and hilar bile duct transects were subjected to a fast frozen section analysis during surgery, and the results were negative for cancer. A histopathological examination of the resected specimen revealed no malignant findings in the bile duct lesions, and a diagnosis of peribiliary gland hyperplasia with chronic inflammatory cell infiltration and fibrosis of the extrahepatic bile duct wall was made. Conclusions: We encountered a case of peribiliary gland hyperplasia that was difficult to distinguish from bile duct cancer.

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Emerging evidence has shown remarkable advances in the multimodal treatment of esophageal squamous-cell carcinoma. Despite these advances, the oncological outcomes for advanced esophageal cancer remain controversial due to the frequent observation of local recurrence in the regional or other lymph nodes and distant metastasis after curative treatment. For cases of locoregional recurrence in the cervical lymph nodes alone, salvage surgery with lymph node dissection generally provides a good prognosis. However, if recurrence occurs in multiple regions, the oncological efficacy of surgery may be limited. Radiotherapy/chemoradiotherapy can be employed for unresectable or recurrent cases, as well as for selected cases in neo- or adjuvant settings. Dose escalation and toxicity are potential issues with conventional three-dimensional conformal radiotherapy; however, more precise therapeutic efficacy can be obtained using technical modifications with improved targeting and conformality, or with the use of proton beam therapy. The introduction of immune checkpoint inhibitors, including pembrolizumab or nivolumab, in addition to chemotherapy, has been shown to improve the overall survival in unresectable, advanced/recurrent cases. For patients with lymph node recurrence in multiple regions, chemotherapy (5-fluorouracil [5-FU] plus cisplatin) and combination therapy with nivolumab and ipilimumab have shown comparable oncological efficacy. Further prospective studies are needed to improve the treatment outcomes in patients with esophageal cancer with locoregional recurrence.

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This study presents a case of a 72-year-old man diagnosed with non-small cell lung cancer (cT4N0M0) referred to our hospital for possible surgical treatment of a solitary nodule detected in the mesorectum. The patient had received combined chemoradiotherapy and achieved a complete response 13 months before the presentation. On examination, the mesorectal nodule was incidentally detected during surveillance computed tomography, and the maximum standardized uptake value of the nodule was 10.3. Because of the potential malignancy and need for en-bloc resection of the nodule, we performed laparoscopically assisted high anterior resection of the rectum. The postoperative course was uneventful. Notably, while pathological examination revealed that the mesorectal nodule comprised an intravenous organized thromboembolism, malignancy was not observed. These findings suggest that although positron emission tomography/computed tomography with 18F-fluorodeoxyglucose is useful for the diagnosis of malignant diseases, surgical resection might be the most reliable option for complex cases such as ours.

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BACKGROUND: The recent guidelines from the European and American Hernia Societies recommend a continuous small-bite suturing technique with slowly absorbable sutures for fascial closure of midline abdominal wall incisions to reduce the incidence of wound complications, especially for incisional hernia. However, this is based on low-certainty evidence. We could not find any recommendations for skin closure. The wound closure technique is an important determinant of the risk of wound complications, and a comprehensive approach to prevent wound complications should be developed. METHODS: We propose a single-institute, prospective, randomized, blinded-endpoint trial to assess the superiority of the combination of continuous suturing of the fascia without peritoneal closure and continuous suturing of the subcuticular tissue (study group) over that of interrupted suturing of the fascia together with the peritoneum and interrupted suturing of the subcuticular tissue (control group) for reducing the incidence of midline abdominal wall incision wound complications after elective gastroenterological surgery with a clean-contaminated wound. Permuted-block randomization with an allocation ratio of 1:1 and blocking will be used. We hypothesize that the study group will show a 50% reduction in the incidence of wound complications. The target number of cases is set at 284. The primary outcome is the incidence of wound complications, including incisional surgical site infection, hemorrhage, seroma, wound dehiscence within 30 days after surgery, and incisional hernia at approximately 1 year after surgery. DISCUSSION: This trial will provide initial evidence on the ideal combination of fascial and skin closure for midline abdominal wall incision to reduce the incidence of overall postoperative wound complications after gastroenterological surgery with a clean-contaminated wound. This trial is expected to generate high-quality evidence that supports the current guidelines for the closure of abdominal wall incisions from the European and American Hernia Societies and to contribute to their next updates. TRIAL REGISTRATION: UMIN-CTR UMIN000048442. Registered on 1 August 2022. https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000055205.

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Pared Abdominal , Técnicas de Cierre de Herida Abdominal , Procedimientos Quirúrgicos del Sistema Digestivo , Procedimientos Quirúrgicos Electivos , Hernia Incisional , Infección de la Herida Quirúrgica , Técnicas de Sutura , Humanos , Estudios Prospectivos , Técnicas de Cierre de Herida Abdominal/efectos adversos , Pared Abdominal/cirugía , Técnicas de Sutura/efectos adversos , Infección de la Herida Quirúrgica/prevención & control , Infección de la Herida Quirúrgica/etiología , Infección de la Herida Quirúrgica/epidemiología , Procedimientos Quirúrgicos del Sistema Digestivo/efectos adversos , Procedimientos Quirúrgicos del Sistema Digestivo/métodos , Hernia Incisional/prevención & control , Hernia Incisional/etiología , Hernia Incisional/epidemiología , Procedimientos Quirúrgicos Electivos/métodos , Procedimientos Quirúrgicos Electivos/efectos adversos , Resultado del Tratamiento , Incidencia , Cicatrización de Heridas , Estudios de Equivalencia como Asunto , Ensayos Clínicos Controlados Aleatorios como Asunto , Factores de Tiempo

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TECHNIQUE: The Endoscopic Mini- or Less-open Sublay operation (EMILOS) is a transhernial repair that allows endoscopic dissection and mesh placement in the retrorectus/retromuscular space, and simultaneous transversus abdominis release (TAR) for larger hernias. The operative summary is as follows. 1 A 7-cm longitudinal skin incision was made immediately above the hernial orifice. 2 The hernial sac was circumferentially dissected to the border of the defect, and the abdomen was opened. 3 The posterior rectus sheath (PRS) was incised approximately 5 mm lateral to the medial border of the rectus sheath to enter the retrorectus space. 4 Exploratory laparoscopy was performed, and the peritoneum was closed. 5 A single port platform was attached to the wound, and the abdominal wall was insufflated. The retrorectal space was dissected laterally to the outer edge of the rectus abdominis muscle. The linea alba was incised at least 5 cm cranially and caudally from the border of the hernia defect to obtain sufficient mesh overlap. 6 The TAR was added to the left side to facilitate medial advancement of the PRS. (7) The PRS was approximated with continuous suture. A self-gripping mesh was trimmed and implanted in the retrorectus space. The mesh was secured with 3-0 absorbable sutures (8) A closed-suction drain was placed on the mesh, and the wound was trimmed and closed. RESULTS: The postoperative course was uneventful. No recurrence was observed at 6-month follow-up. CONCLUSIONS: This technique may be advantageous because it allows minimal skin incision with physiological reconstruction of abdominal wall.

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Músculos Abdominales , Herniorrafia , Hernia Incisional , Humanos , Hernia Incisional/cirugía , Músculos Abdominales/cirugía , Herniorrafia/métodos , Herniorrafia/instrumentación , Mallas Quirúrgicas , Laparoscopía/métodos , Femenino

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Patients with inflammatory bowel diseases (IBDs), such as ulcerative colitis and Crohn's disease, have an increased risk of developing colorectal cancer (CRC). Although advancements in endoscopic imaging techniques, integrated surveillance programs, and improved medical therapies have contributed to a decreased incidence of CRC in patients with IBD, the rate of CRC remains higher in patients with IBD than in individuals without chronic colitis. Patients with IBD-related CRCs exhibit a poorer prognosis than those with sporadic CRCs, owing to their aggressive histological characteristics and lower curative resection rate. In this review, we present an updated overview of the epidemiology, etiology, risk factors, surveillance strategies, treatment recommendations, and prognosis of IBD-related CRCs.

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INTRODUCTION: Most lymphatic vessels in the upper rectum run parallel to the superior rectal artery and up to the inferior mesenteric artery. Here, we report a rare case of upper rectal cancer with atypical lymphatic spread. PRESENTATION OF CASE: A 39-year-old woman was diagnosed with upper rectal cancer and isolated lymph node (LN) metastases to the mesorectal and right common iliac LNs. The patient underwent laparoscopic low anterior resection with targeted dissection of the right common iliac LNs. The pathological diagnosis was T3N2M0, and the patient received postoperative adjuvant chemotherapy. One year later, local recurrence was found at the sacral promontory level, where the targeted lymphadenectomy had been performed previously. The recurrent tumor was surgically resected together with the attached presacral fascia. The patient subsequently received postoperative adjuvant chemotherapy, and there was no recurrence one year after the last surgery. DISCUSSION: Isolated metastases were observed in the right common iliac and mesorectal LNs. The locally recurrent tumor included lymphatic vessels running along the median sacral artery. No metastatic tumor was found in the internal iliac area at the time of the initial diagnosis nor during recurrence. Thus, this case suggests the presence of a rare metastatic route from the mesorectal LN to the common iliac LN via the median sacral lymphatics. CONCLUSION: Lymphatic spread of rectal cancer may be predictable; however, rare patterns of LN metastasis can exist. The assessment of lymphatic flow is crucial for improving the oncological outcomes of rectal cancer surgery.

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Hernia Femoral , Hernia Inguinal , Obstrucción Intestinal , Humanos , Hernia Femoral/cirugía , Intestinos , Obstrucción Intestinal/cirugía , Hernia Inguinal/cirugía , Herniorrafia

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An ileostomy is associated with multiple complications that may frequently or persistently affect the life of ostomates. All healthcare professionals should have knowledge of the diagnosis, treatment, and prevention of ileostomy complications. Peristomal dermatitis is caused by watery and highly alkaline effluent. Skin protective products are typically used for local treatment. Ischemia/necrosis occurs due to insufficient arterial blood supply. Retraction is seen in patients with a bulky mesentery and occurs following ischemia. Convex stoma appliances can be used for skin protection against fecal leakage. Small bowel obstruction (SBO) is common and occurs only at the stoma site. Trans-stomal decompression is most effective in these cases. High output stoma (HOS) is defined as a condition when the output exceeds 1,000- 2,000 ml/day, lasting for one to three days. Treatment includes intravenous fluid and electrolyte resuscitation followed by restriction of hypotonic fluid and the use of antimotility (and antisecretory) drugs. Stomal prolapse is a full-thickness protrusion of an inverted bowel. Manual reduction is attempted initially, whereas emergency bowel resection may be needed for incarcerated cases. A parastomal hernia (PSH) is an incisional hernia of the stoma site. Surgery is considered in cases of incarceration, but most cases are manageable with non-surgical treatment.

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Colonic stenting has had a significant positive impact on the management of obstructive left-sided colon cancer (OLCC) in terms of both palliative treatment and bridge-to-surgery (BTS). Notably, many studies have convincingly demonstrated the effectiveness of stenting as a BTS, resulting in improvements in short-term outcomes and quality of life, safety, and efficacy in subsequent curative surgery, and increased cost-effectiveness, whereas the safety of chemotherapy after stenting and the long-term outcomes of stenting as a BTS are controversial. Several studies have suggested an increased risk of perforation in patients receiving bevacizumab chemotherapy after colonic stenting. In addition, several pathological analyses have suggested a negative oncological impact of colonic stenting. In contrast, many recent studies have demonstrated that colonic stenting for OLCC does not negatively impact the safety of chemotherapy or long-term oncological outcomes. The updated version of the European Society of Gastrointestinal Endoscopy guidelines released in 2020 included colonic stenting as a BTS for OLCC as a recommended treatment. It should be noted that the experience of endoscopists is involved in determining technical and clinical success rates and possibly oncological outcomes. This review discusses the positive and negative impacts of colonic stenting on OLCC treatment, particularly in terms of oncology.

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OBJECTIVE: This trial evaluated the superiority of intraoperative wound irrigation (IOWI) with aqueous povidone-iodine (PVP-I) compared with that with saline for reducing the incidence of surgical site infection (SSI). BACKGROUND: IOWI with aqueous PVP-I is recommended for the prevention of SSI by the World Health Organization and the Centers for Disease Control and Prevention, although the evidence level is low. METHODS: This single institute in Japan, prospective, randomized, blinded-endpoint trial was conducted to assess the superiority of IOWI with aqueous PVP-I in comparison with IOWI with saline for reducing the incidence of SSI in clean-contaminated wounds after gastroenterological surgery. Patients 20 years or older were assessed for eligibility, and the eligible participants were randomized at a 1:1 ratio using a computer-generated block randomization. In the study group, IOWI was performed for 1 minute with 40 mL of aqueous 10% PVP-I before skin closure. In the control group, the procedure was performed with 100 mL of saline. Participants, assessors, and analysts were masked to the treatment allocation. The primary outcome was the incidence of incisional SSI in the intention-to-treat set. RESULTS: Between June 2019 and March 2022, 941 patients were randomized to the study group (473 patients) or the control group (468 patients). The incidence of incisional SSI was 7.6% in the study group and 5.1% in the control group (risk difference 0.025, 95% CI -0.006 to 0.056; risk ratio 1.484, 95% CI 0.9 to 2.448; P =0.154). CONCLUSION: The current recommendation of IOWI with aqueous PVP-I should be reconsidered.

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Antiinfecciosos Locales , Povidona Yodada , Humanos , Antiinfecciosos Locales/uso terapéutico , Incidencia , Povidona Yodada/uso terapéutico , Estudios Prospectivos , Solución Salina , Infección de la Herida Quirúrgica/epidemiología , Infección de la Herida Quirúrgica/prevención & control , Adulto Joven , Adulto

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Diverticulitis , Laparoscopía , Uréter , Humanos , Uréter/cirugía , Catéteres , Rayos Infrarrojos , Diverticulitis/cirugía

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Hernia Inguinal , Laparoscopía , Humanos , Hernia Inguinal/cirugía , Mallas Quirúrgicas , Peritoneo/cirugía , Colgajos Quirúrgicos , Herniorrafia , Recurrencia

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Introduction Surgery for complex inguinal hernia (IH) (recurrent IH or IH after radical prostatectomy (RP)) may be difficult because of the presumed scar or adhesion in the retropubic space. A hybrid method combining the laparoscopic and anterior approaches (HLAA) in a bidirectional surgical technique may be an option in complex IH cases. Methods Patients at our institution who underwent IH repair for complex IH using HLAA from April 2018 to November 2019 were included. We retrospectively evaluated the patient characteristics, IH diagnosis, intraoperative variables, complications, and hernia recurrence during the follow-up period. Results Twenty patients were involved in this study. Seven patients underwent hLAA for recurrent IH, whereas the remaining 13 underwent hLAA for IH after RP. Five patients had bilateral IH, all of whom had IH after RP. The type of IH was lateral in 21 patients, medial in six patients, and lateral and medial in two patients. Hernia repair was performed using a patch alone in two patients and a plug and patch in 18 patients. Seroma or hematoma was observed in five patients, and one patient experienced chronic pain. No hernia recurrence was observed during the median follow-up period of 24 months. Conclusion hLAA could facilitate precise diagnosis and intraoperative confirmation of repair for recurrent IH and IH after RP. The intraoperative findings and the cause of recurrence can be easily shared among surgeons in hLAA. Further investigations are necessary to determine the long-term efficacy of hLAA in a larger cohort.

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INTRODUCTION:  Stomal prolapse (SP) is characterized by full-thickness protrusion of the bowel through the stoma site. The surgical procedures for SP include local repair, abdominal wall fixation, and stoma relocation. However, previous reports were mostly case reports or case series with a small number of patients and lacked long-term results. A modified Altemeier technique (MAT) has been used for the local repair of SP in our institution, and this study aimed to evaluate its mid-term efficacy. METHODS:  We reviewed patients who underwent MAT for SP between August 2013 and December 2020. The variables included patient characteristics, type of stoma, indications of stoma creation, the time interval from stoma creation to prolapse, site of prolapse, reasons for SP surgery, perioperative variables, complications during SP surgery, and length of follow-up. Recurrence of SP was defined as the need for change in stoma care or re-protrusion of the stoma by more than 5 cm in length. RESULTS:  Ten patients were included in this study. The median age at the time of SP surgery was 71.5 years. The indications of stoma creation included unresectable or recurrent intra-abdominal malignancies in four patients, diverting ileostomy with rectal cancer surgery in two, transverse colon cancer in one, gastric and rectal cancer in one, rectovaginal fistula in one, and non-occlusive mesenteric ischemia in one. The median interval from stoma creation to prolapse was 2.5 months. Six patients underwent elective SP surgery, and four patients underwent emergency surgery for incarcerated prolapse. The median operative time was 75.5 min. Postoperative complications that included transient mucosal ischemia and subcutaneous abscess occurred in one patient. There were four recurrences (40%), and the median time interval from surgery to recurrence was 4.5 months. Two patients underwent repeated MAT, one of whom underwent stomal reversal with laparotomy for re-recurrence. The median follow-up duration was 19 months. CONCLUSION:  MAT for SP is associated with a high recurrence rate in mid-term follow-up.

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Parastomal hernia (PH) is a common complication of ileal conduit diversions. The Sugarbaker technique has a lower recurrence rate than the keyhole (KH) technique and is typically preferred. However, it may not be feasible in some cases because of anatomical features including the length of the conduit and torsion of the ureter. An 80-year-old woman with complaints of abdominal distention was diagnosed with PH 5 years after radical cystectomy. Computed tomography revealed a 90 × 20-mm muscular layer defect on the cranial side of the ileal conduit. Therefore, we performed the KH technique with intracorporeal closure of the defect using a relief incision of the posterior rectus sheath, avoiding the possibility of torsion of the ureteral ileal anastomosis. No hernia recurrence was observed at postoperative 10 months. The proposed KH plus technique may be an effective method for PH after ileal conduit diversion, thus preventing urinary complications.

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Hernia Incisional , Derivación Urinaria , Anciano de 80 o más Años , Anastomosis Quirúrgica/efectos adversos , Cistectomía/métodos , Femenino , Herniorrafia/métodos , Humanos , Hernia Incisional/etiología , Hernia Incisional/cirugía , Derivación Urinaria/efectos adversos

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Overexpression of satellite RNAs in heterochromatin induces chromosomal instability (CIN) through the DNA damage response and cell cycle checkpoint activation. Although satellite RNAs may be therapeutic targets, the associated mechanisms underlying drug sensitivity are unknown. Here, we determined whether satellite RNAs reflect drug sensitivity to the topoisomerase I inhibitor camptothecin (CPT) via CIN induction. We constructed retroviral vectors expressing major satellite and control viruses, infected microsatellite stable mouse colon cancer cells (CT26) and MC38 cells harboring microsatellite instability, and assessed drug sensitivity after 48 h. Cells overexpressing satellite RNAs showed clear features of abnormal segregation, including micronuclei and anaphase bridging, and elevated levels of the DNA damage marker γH2AX relative to controls. Additionally, overexpression of satellite RNAs enhanced MC38 cell susceptibility to CPT [half-maximal inhibitory concentration: 0.814 µM (control) vs. 0.332 µM (MC38 cells with a major satellite), p = 0.003] but not that of CT26. These findings imply that MC38 cells, which are unlikely to harbor CIN, are more susceptible to CIN-induced CPT sensitivity than CT26 cells, which are characterized by CIN. Furthermore, CPT administration upregulated p53 levels but not those of p21, indicating that overexpression of major satellite transcripts likely induces CPT-responsive cell death rather than cellular senescence.

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Heterocromatina , Neoplasias , Animales , Camptotecina/farmacología , Inestabilidad Cromosómica , Daño del ADN , Heterocromatina/genética , Ratones , Satélite de ARN

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INTRODUCTION: Herein, we describe a novel technique for suprapubic incisional hernia repair using a modified transabdominal partial extraperitoneal technique in four patients. MATERIALS AND SURGICAL TECHNIQUE: We implemented four-trocar placement to achieve a coaxial setting for the pubic bone. The pubic bone and Cooper's ligament were exposed by an incision dorsal to the hernial orifice, and the bladder was mobilized as an inferior peritoneal flap. The retropubic space was dissected approximately 5 cm from the hernial defect and this was closed with an intracorporeal non-absorbable barbed suture. A mesh was introduced into the intra-abdominal cavity, positioned to cover the closed defect, and tied to Cooper's ligament, the pubic bone, and rectus muscles. The dissected peritoneal flap was reattached to the abdominal wall by tacking and suturing. DISCUSSION: The modified transabdominal partial extraperitoneal technique for suprapubic incisional hernia repair may contribute to decreased recurrence and seroma formation.

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Hernia Ventral , Hernia Incisional , Laparoscopía , Hernia Ventral/cirugía , Herniorrafia/métodos , Humanos , Hernia Incisional/cirugía , Laparoscopía/métodos , Mallas Quirúrgicas