Colectomy Research Articles

Case of colon perforation due to segmental absence of intestinal musculature accompanied by cancer treated with colonic resection and anastomosis

BackgroundSegmental absence of intestinal musculature (SAIM) is a partial defect of intestinal muscularis propria without diverticulum. Many reports indicate that the increase in intestinal pressure caused by enemas or endoscopic examinations leads to bowel perforation, but there are few reports involving malignant tumors. Moreover, few reports have had good outcomes after performing one-stage intestinal anastomosis.Case presentationA 60-year-old male came to the office with right-side abdominal pain, and was diagnosed with acute generalized peritonitis caused by ascending colon perforation. Emergency laparotomy was performed, and oval and smooth perforation at the ascending colon was observed, which caused ascites with feces. In addition, there was a tumor on the distal side. The terminal ileum was not dilated, so the cause of the perforation was more likely the SAIM-related thin intestinal wall rather than increased internal intestinal pressure due to obstruction of the tumor. Therefore, a right hemicolectomy with functional end-to-end anastomosis (FEEA) between the ascending colon and ileum was performed, rather than creating a stoma. On pathological examination, the resected bowel segments had a partial defect of intestinal muscularis propria around the perforation, leading to the diagnosis of SAIM. The patient had a favorable postoperative course without anastomotic issues and was discharged safely.ConclusionsThis case implies that initial intestinal anastomosis can be performed without creating a stoma when SAIM is suspected from the shape of the perforation and proximal intestine. This case report suggests surgeons should keep SAIM in mind during operations for colon perforations.

Laparoscopic colon surgery: time to leave the urinary catheter in the operating room?

'Fast track' guidelines have incorporated multimodal measures to optimize perioperative outcomes in surgery, with laparoscopy being a pivotal component for its advantages in early recovery. In this setting,current recommendations regarding the use of aurinary catheter suggest its removal within the first 24-hours postoperatively. However,few studies have assessed the feasibility of leaving the operating room without it. The purpose of this study is to compare the perioperative outcomes of patients undergoing elective laparoscopic colonic resections leaving the operating room with and without a urinary catheter. A retrospective study was conducted utilizing prospectively collected data from patients undergoing elective colon resections over a 17-month period. The patients were classified into two groups based on the presence or absence of a urinary catheter upon leaving the operating room, and subsequently, their perioperative outcomes were compared. A total of 107 patients met the inclusion criteria (n = 28 with a urinary catheter and n = 79 without). Cancer was the most prevalent diagnosis (83.2%), and right hemicolectomy the most frequently performed surgery (32.7%). Two events of urinary catheter reinsertions were reported, both in the no-catheter group (0% vs 2.53%, p = 0.969), andthere were no cases of urinary tract infections. The overall and severe complications ratesexhibited no significant differences (25% vs. 26.6%, p = 1, and 7.14% vs. 5.06%, p = 1)and the length of stay was similar (p = 0.220). Removing the urinary catheter before leaving the operating room appears to be safe and associated with very low rates of urinary retention in selected patients undergoing laparoscopic colonic or upper rectal resections.

Locally Advanced Splenic Flexure Tumor With Invasion And Formation Of Splenic Abscess

Introduction: Splenic abscesses are rare, with an incidence of 0.14-0.70% in autopsies, affecting mainly men and immunosuppressed patients. Symptoms include fever, abdominal pain, nausea, and vomiting. Splenic invasion by colon cancer at the splenic flexure is uncommon. We report a case of cancer at the splenic flexure resulting in a splenocolic fistula and splenic abscess. Case Description: A 43-year-old man, with a history of injectable drug use, presented with diffuse abdominal pain. Tests revealed leukocytosis, thrombocytopenia, and elevated bilirubins and liver enzymes. A CT scan identified thickening in the colon and a splenic abscess. Total splenectomy and left colectomy with colon-colonic anastomosis were performed. Discussion: Splenic abscesses are rare and, when associated with colonic neoplasms, present a diagnostic and therapeutic challenge. This case highlights the importance of aggressive surgical intervention to treat tumor invasions and associated complications.

Robotic Sigmoidectomy for Diverticular Disease.

Introduction: Historically, colon resection was recommended after one episode of complicated diverticulitis. However, current trends favor a more individualized approach. This review examines elective sigmoidectomy for complicated diverticulitis as well as robotic approaches for diverticular disease. Methods: The literature was reviewed for timely (post 2000) and relevant articles regarding robotics and diverticulitis. The articles included large prospective series, retrospective analysis, meta-analyses and randomized controlled trials. Results: Primary anastomosis with or without protective ileostomy has emerged as an alternative to the Hartman's procedure in emergent or urgent surgery in patients without significant comorbidities. Elective sigmoidectomy after an episode of complicated diverticulitis should be decided on a case-by-case basis considering patient characteristics, continued subacute symptoms, complications from the disease, and chance of recurrence episodes. Conclusions: There are several variations techniques for robotic sigmoidectomy outlined in this article, and familiarity with all can help depending on the logistics of the case. Minimally invasive colectomy provides superior patient satisfaction and outcomes.

Leukocytosis and thrombocytosis after splenectomy: expected finding, infection, or something else: a case report

BackgroundLeukocytosis and thrombocytosis often follow splenectomy in blunt trauma patients, complicating the postoperative identification of infection. While the platelet count to white blood cell ratio provides diagnostic assistance to discern between expected laboratory alterations and infection, diagnoses such as leukemia are often overlooked.Case presentationA 53-year-old Hispanic male presented with abdominal pain, nausea, tachycardia, and focal peritonitis 4 days after being assaulted and struck multiple times in the abdomen. Initial white blood cell count was 38.4 × 109/L, platelet count was 691 × 109/L, and lipase was 55 U/L. Computed tomography abdomen/pelvis demonstrated a hematoma encasing the distal pancreas and abutting the stomach and colon. Emergent laparotomy revealed a nearly transected pancreas and devascularized colon, necessitating a distal pancreatectomy, splenectomy, and colonic resection with primary anastomosis. Postoperatively, he had a persistently elevated leukocytosis, thrombocytosis, segmented neutrophils, eosinophilia, and basophilia (peak at 70, 2293, 64, 1.1, and 1.2 × 109/L, respectively). Despite sepsis workup, including repeat computed tomography, no source was identified. Hematology/oncology was consulted for concern for hematologic etiology, with genetic testing and bone marrow biopsy performed. The diagnosis of breakpoint cluster–Abelson gene-positive chronic myeloid leukemia was made based on genetic tests, including polymerase chain reaction and fluorescence in situ hybridization analysis, which confirmed the presence of the Philadelphia chromosome. Bone marrow biopsy suggested a chronic phase. The patient was treated with hydroxyurea and transitioned to imatinib.ConclusionsThrombocytosis following splenectomy is a common complication and a plate count to white blood cell count ratio < 20 indicates infectious etiology. A significantly elevated white blood cell count (> 50 × 109/L) and thrombocytosis (> 2000 × 109/L) may suggest something more ominous, including chronic myeloid leukemia , particularly when elevated granulocyte counts are present. Chronic myeloid leukemia workup includes peripheral smear, bone marrow aspiration, and determination of Philadelphia chromosome. Post-splenectomy vaccines are still indicated within 14 days; however, the timing of immunization with cancer treatment must be considered. Tyrosine kinase inhibitors are the first-line therapy and benefits of pretreatment with hydroxyurea for cytoreduction remain under investigation. Additionally, tyrosine kinase inhibitors have been associated with gastrointestinal perforation and impaired wound healing, necessitating heightened attention in patients with a new bowel anastomosis.

A Multimodal Approach to the Management of Diverticular Abscess with Paraesophageal Hernia Complication

This study aims to evaluate the management of acute diverticulitis complicated by hernia and the role of electroacupuncture in managing postoperative ileus. The case involved a 51-year-old male patient who presented with left lower abdominal pain, fever, and defecation disorder. Physical examination showed signs of infection with localized peritonitis, while laboratory tests revealed neutrophilia. CT scan showed diverticulitis with abscesses in the descending and sigmoid colon, as well as free air around the colon and perihepatic region, and paraesophageal hernia. The patient underwent left hemicolectomy with Hartmann's procedure. Postoperatively, the patient developed ileus which was treated using electroacupuncture. The results showed that the relationship between diverticulosis and hernia is due to connective tissue changes. Approximately 10-20% of diverticulosis cases progress to acute diverticulitis. CT scan is the gold standard for diagnosis, staging and management of diverticulitis. In cases of Hinchey III diverticulitis, laparoscopic washing does not give better results compared to colonic resection. The Hartmann procedure is recommended for patients with multiple comorbidities. Electroacupuncture proved to be an effective adjunctive therapy in managing postoperative ileus. The conclusion of this study is that a multimodal approach, including surgery and complementary therapies such as electroacupuncture, is essential in the management of diverticulitis and its complications. The implication of this study is the need for a holistic approach in managing patients with acute diverticulitis, especially in cases with multiple comorbidities and risk of postoperative complications.

Correction to “Reproductive success in thoroughbred broodmares post large colon resection or colopexy”

Correction to “Reproductive success in thoroughbred broodmares post large colon resection or colopexy”

Appendiceal Mucosal Schwann Cell Proliferation Associated with Incidentally Detected Goblet Cell Adenocarcinoma of Appendix in a Case of Invasive Adenocarcinoma of Sigmoid Colon- A Case Report

Abstract Introduction/Objective Appendiceal mucosal Schwann cell proliferation has been suggested to be a putative histologic marker of appendiceal diverticular disease. Appendiceal Goblet cell adenocarcinoma, (GCA) is amongst the most rare appendiceal tumors with a reported incidence of 0.05 cases per 100,000 population per year in United States. They have features of both neuroendocrine tumors and adenocarcinomas, but behave more similarly to adenocarcinomas. Methods/Case Report Herein, we report a case of appendiceal mucosal schwann cell proliferation associated with incidentally detected Goblet cell adenocarcinoma of appendix in a known case of invasive adenocarcinoma of sigmoid colon. A 75-year-old female presented with sigmoid colon obstruction. Intraoperatively, she was found to have gangrenous and perforated colon, as well as a large obstructing sigmoid mass, and underwent total abdominal colectomy with end-ileostomy. On gross examination, a tan bosselated tumor (up to 3.5 cm) was seen in proximal sigmoid colon. Microscopic examination showed Invasive adenocarcinoma, moderately-differentiated. Appendix was unremarkable on gross examination. Incidentally, the appendix microscopically demonstrated “Goblet cell adenocarcinoma”, histologic grade 1 out of 3 (pathologic stage pTis pN0), present in multiple foci within lamina propria of the distal third of appendix over an area measuring 1.5 cm. Additionally, there were foci of SOX10-positive bland- looking spindle cell proliferation in lamina propria of the appendix. This proliferation is rendered as “Schwann cell proliferation”. Results (if a Case Study enter NA) NA Conclusion One study found that “Schwann cell proliferation” is seen in 42% of appendiceal diverticula cases. It has never been reported in association with “Appendiceal GCA” before. Here we report an intriguing case of Schwann cell proliferation associated with this rare entity of GCA for the first time in literature. Therefore, awareness of such coexistence of these pathologic entities in the same appendix is essential to alert the pathologist to look for GCA, whenever Schwann cell proliferation is encountered in random section of an appendix. This case also emphasizes the importance of being vigilant of the possible presence of other tumors in a specimen with a known tumor.

Case Report of Rectosigmoid Vascular Malformation

Abstract Introduction/Objective Gastrointestinal (GI) vascular malformations and hemangiomas, although infrequently encountered, can present with similar clinical symptoms as other more common causes of chronic hematochezia, such as hemorrhoids or inflammatory bowel disease (IBD, ex. Crohn’s disease, ulcerative colitis). Whereas hemangiomas are benign vascular tumors that grow quickly and often involute, vascular malformations consist of abnormal vasculature that grow in size as the individual ages without regression. Gastrointestinal vascular malformations can result in pain secondary to applied pressure on nearby tissues/organs and induce a chronic anemic state secondary to ongoing hematochezia. As surgery or sclerotherapy can often treat the condition, proper diagnosis is critical as it can impact treatment and quality of life. Among GI vascular malformations, rectosigmoid vascular malformations are uncommon, making up 5% of lower limb vascular malformations examined in recent published literature. In this case report, we highlight a case of rectosigmoid vascular malformation. Methods/Case Report A 41-year-old female, initially treated for inflammatory bowel disease (IBD), presents with multiple bloody bowel movements a day accompanied by nausea secondary to chronic proctosigmoiditis refractory to medications traditionally used in IBD: mesalamine derivatives, systemic corticosteroid, and biologics. While colonoscopy demonstrated some features suggestive of ulcerative colitis, CT and MR enterography showed severe rectal wall thickening with phleboliths, which was unchanged over many years, suggestive of a vascular malformation such as a hemangioma. Following rectosigmoid colon resection, a diagnosis of a 9 cm rectosigmoid vascular malformation was made, showing extensive bowel wall involvement by the malformed vasculature. On follow-up, the patient is doing well, and her symptoms have completely resolved. Results (if a Case Study enter NA) NA Conclusion Vascular malformations can be classified into various subtypes (capillary, venous, arterial, lymphatics, etc), found throughout the body, and vary in size. Our case consists of a mixed nature (artery, vein, and lymphatics), notable size (9.0 cm in greatest dimension) with extensive bowel wall involvement, and an unusual location (rectosigmoid region). This case represents an uncommon presentation of this entity, which appears to be clinically challenging. Though uncommon, this diagnosis should be on the differential of unusual etiologies of overt lower GI bleeding.

A case of MSI-high pancreatic body-tail cancer successfully treated with radical resection after pembrolizumab.

A 72-year-old woman was diagnosed with unresectable pancreatic body-tail cancer (cT4N1M1, cStage IV) with para-aortic lymph node metastasis. She underwent six courses of gemcitabine + nab-paclitaxel as first-line chemotherapy, 12 courses of oxaliplatin + irinotecan + levofolinate + fluorouracil as second-line chemotherapy, and five courses of albumin-suspended irinotecan + levofolinate + fluorouracil as third-line chemotherapy. After each chemotherapy regimen, the disease was determined to be progressive. Analyses of endoscopic ultrasound-fine needle aspiration specimens and peripheral blood samples revealed microsatellite-instability (MSI)-high pancreatic cancer. The patient underwent 19 courses of pembrolizumab and achieved a partial response. She then underwent conversion surgery, including distal pancreatectomy, lymph node dissection, local gastrectomy and partial mesenteric resection of transverse colon. She is currently alive without recurrence at 18months postoperatively. It is extremely rare for patients with unresectable and MSI-high pancreatic cancer to successfully undergo conversion surgery after pembrolizumab treatment.

Classic and Visceral-Sparing Complete Pelvic Peritonectomy for Peritoneal Surface Malignancies: A Video Demonstration in Female Patients.

Cytoreductive surgery (CRS) with or without hyperthermic intraperitoneal chemotherapy has become standard for resectable peritoneal surface malignancies. CRS aims to achieve complete resection of macroscopic disease through peritonectomy procedures and visceral resections. The pelvis is very frequently involved in peritoneal malignancies, making surgical techniques that ensure complete tumor removal an essential part of CRS. This is best achieved through an enbloc pelvic peritonectomy, which frequently includes a hysterectomy and bilateral oophorectomy in women. We created a video to review technical steps and exposure tips to achieve a complete cytoreduction of the pelvis in female patients with enbloc resection of the entire pelvic peritoneum, including the cul-de-sac, the uterus, and the adnexa, with ('classic pelvic peritonectomy') or without ('visceral-sparing pelvic peritonectomy') rectosigmoid resection. The creation of a protective ileostomy in classic pelvic peritonectomy is routine in many centers, while other centers advocate only selective and sparing use of ileostomy. In our center, protective ileostomy is used selectively and is therefore not included in the video. In the first part of the video, we review the rationale, indications, and steps, while in the second part, we show a practical demonstration of both a classic and a visceral-sparing pelvic peritonectomy in female patients. Complete pelvic peritonectomy can be achieved both with or without enbloc resection of the rectosigmoid colon. This technique is an essential part of CRS, and mastery of the technique can help the likelihood of achieving complete tumor removal in advanced or complex involvement of the pelvis.

The Impact of Endoscopic Mucosal Resection and Endoscopic Submucosal Dissection on Colonic Polyp Resection and Factors Influencing Recurrence

The Impact of Endoscopic Mucosal Resection and Endoscopic Submucosal Dissection on Colonic Polyp Resection and Factors Influencing Recurrence

Analysis of the outcomes of postdiverticulitis investigations: a multicentre cohort study including 1,120 patients.

The aim of this study was to assess the yield of the endoscopic investigations performed following the resolution of acute diverticulitis. A retrospective multicentre study included patients with multislice computed tomography (MSCT)-proven diverticulitis, in four NHS hospitals, between January 2016 and April 2023. The primary outcome was the rate of colonic cancer in the diseased segment. Secondary outcomes included the rate of malignancy in the nondiseased colonic segments, the benign colonic polyp detection rate, the rate of malignancy in the resected surgical specimens in patients who underwent an emergency surgery on the index admission and the rate of complications in the investigated group. A total of 1,120 patients were included in the study, out of which 604 were females, with a median age of 61 years; 731 patients (65%) had uncomplicated diverticulitis (Hinchey 1A) while 389 (35%) had complicated diverticulitis (Hinchey 1B-4). Following the acute episode, 757 (74%) patients had subsequent endoscopic evaluation. The incidence of colorectal cancer (CRC) or advanced adenomas (AA) in patients with uncomplicated diverticulitis was 0.14%. In the complicated diverticulitis group, the incidence of CRC/AA in patients with Hinchey 1b and Hinchey 2 was 1.4% and 5.4%, respectively. Out of the 102 patients who underwent emergency colonic resection for suspected perforated diverticulitis, 18 (17.6%) had histological evidence of colonic malignancy. Endoscopic investigations following uncomplicated diverticulitis have a low yield for sinister colonic pathology. Colonoscopy should be planned following complicated diverticulitis and in patients with uncomplicated diverticulitis with suspicious radiological finding on index imaging or in patients with ongoing clinical manifestations. In patients who undergo emergency surgery, oncological principles should be applied whenever possible.

Antegrade Continence Enema Alone for the Management of Functional Constipation and Segmental Colonic Dysmotility (ACE-FC): A Pediatric Colorectal and Pelvic Learning Consortium Study.

The purpose of the study was to determine if antegrade continence enema (ACE) alone is an effective treatment for patients with severe functional constipation and segmental colonic dysmotility. A retrospective study of patients with functional constipation and segmental colonic dysmotility who underwent ACE as their initial means of management. Data was collected from six participating sites in the Pediatric Colorectal and Pelvic Learning Consortium. Patients who had a colonic resection at the same time as an ACE or previously were excluded from analysis. Only patients who were 21 years old or younger and had at least 1-year follow-up after ACE were included. All patients had segmental colonic dysmotility documented by colonic manometry. Patient characteristics including preoperative colonic and anorectal manometry were summarized, and associations with colonic resection following ACE were evaluated using Fisher's exact test and Wilcoxon rank-sum test. p-Values of less than 0.05 were considered significant. Statistical analyses and summaries were performed using SAS version 9.4 (SAS Institute Inc., Cary, North Carolina, United States). A total of 104 patients from 6 institutions were included in the study with an even gender distribution (males n = 50, 48.1%) and a median age of 9.6 years (interquartile range 7.4, 12.8). At 1-year follow-up, 96 patients (92%) were successfully managed with ACE alone and 8 patients (7%) underwent subsequent colonic resection for persistent symptoms. Behavioral disorder, type of bowel management, and the need for botulinum toxin administered to the anal sphincters was not associated with the need for subsequent colonic resection. On anorectal manometry, lack of pelvic floor dyssynergia was significantly associated with the need for subsequent colonic resection; 3/8, 37.5% without pelvic dyssynergia versus 1/8, 12.5% (p = 0.023) with pelvic dyssynergia underwent subsequent colonic resection. In patients with severe functional constipation and documented segmental colonic dysmotility, ACE alone is an effective treatment modality at 1-year follow-up. Patients without pelvic floor dyssynergia on anorectal manometry are more likely to receive colonic resection after ACE. The vast majority of such patients can avoid a colonic resection.

S3899 A Rare Case of Neuroendocrine Carcinoma in Residual Rectum After Subtotal Colectomy With Ileorectal Anastomosis for Ulcerative Colitis

S3899 A Rare Case of Neuroendocrine Carcinoma in Residual Rectum After Subtotal Colectomy With Ileorectal Anastomosis for Ulcerative Colitis

More Than Just Stool: Hypereosinophilic Syndrome Presenting as Persistent Diarrhea in a Patient With Ulcerative Colitis

We highlight a case of non-infectious diarrhea that progressed despite supportive care, prompting further workup. A 50-year-old man presented with 1 week of voluminous diarrhea, nausea, emesis, and abdominal pain. His history included ulcerative colitis, primary sclerosing cholangitis, Clostridioides difficile treated via total colectomy with ileoanal pouch, treated disseminated Mycobacterium avium complex, and international travel. On physical exam he had normal vital signs, diffuse abdominal tenderness without peritoneal signs, and a rash. Lab work revealed leukocytosis with eosinophilia, hyponatremia, and elevated creatinine. Lactate, inflammatory markers, stool studies, and computed tomography of his abdomen were normal. Tissue biopsies of the duodenum, ileum, and rectal pouch collected during colonoscopy and push enteroscopy revealed prominent mucosal eosinophilia, confirming the diagnosis of hypereosinophilic syndrome (HES). Treatment with steroids led to significant improvement in all symptoms and blood eosinophilia. This case highlights the importance of aggressive workup of diarrhea with peripheral eosinophilia, especially in patients with ulcerative colitis: waiting 6 months to confirm the diagnosis via blood work would delay treatment. Notably, infection with Strongyloides stercoralis was ruled out in this case prior to treatment. This is an important step in the workup and management of HES to prevent progression of Strongyloidiasis.

October 2024 Critical Care Case of the Month: Respiratory Failure in a Patient with Ulcerative Colitis

No abstract available. Manuscript truncated after 150 words. History of Present Illness The patient is a 57-year-old woman with a history of ulcerative colitis (UC) complicated by toxic megacolon with subsequent colectomy. She presented to the emergency department with cough, shortness of breath and hypoxemia (87% on RA). PMH, SH • UC with history of toxic megacolon (4 years prior) with a total colectomy • History of a prior episode of respiratory failure a year earlier thought possibly medication induced (ustekinumab, Stelara®) which she was taking for her UC. She was treated with steroids at that time with good response. • Pyoderma gangrenosum of both ankles (attributed to UC). • Anemia of chronic disease. • She is a lifelong non-smoker. • No exposures to toxic dusts, birds, down, humidifiers, mold or other antigens associated with hypersensitivity pneumonitis. Physical Exam • Afebrile, Oxygen saturation 94% on 2 lpm supplemental oxygen. • Chest: crackles noted at left base. • CV regular rhythm, no murmur. Ext: scarring and erythema on …

Ki-67 distribution, α-methylacyl-CoA racemase (AMACR) expression and mucin phenotypes are associated with non-polypoid growth in ulcerative colitis-associated neoplasia.

Ulcerative colitis-associated neoplasia (UCAN) is characterised by multifocal tumourigenesis. A wide range of metachronous lesions have been reported to occur after endoscopic treatment of UCAN, which suggests the development of sporadic tumours in lesions treated as UCAN. Therefore, we aimed to evaluate differences of immunohistochemistry (IHC) in features and clinicopathological characteristics of intramucosal lesions in patients with ulcerative colitis (UC). We examined 35 intramucosal lesions resected for carcinoma or dysplasia by total colectomy from patients with UC and 71 sporadic adenomas (SAs) endoscopically resected from patients without UC. UC lesions were divided into the conventional UCAN group, defined as p53 mutant pattern andnormal expression of β-catenin, and the non-conventional UCAN group, defined as the rest. Ki-67 distribution, α-methylacyl-CoA racemase (AMACR) expression and mucin phenotypes were compared using IHC, and clinicopathological characteristics were investigated. Conventional and non-conventional UCAN lesions were located in the left colon and rectum. Relative to the SA lesions, UCAN lesions occurred in much younger patients and exhibited more frequent basal distribution of Ki-67 in tumour crypts. Conventional UCAN lesions tended to be non-polyploid and exhibited a higher frequency of normal AMACR expression than SA lesions. UC lesions were heterogeneous-only two of the eight patients with multiple lesions had lesions (both non-conventional UCAN lesions) exhibiting concordant IHC staining features. The basal pattern of Ki-67 distribution, normal expression of AMACR and a non-intestinal mucin phenotype were determined as characteristic features suggestive of UCAN. Non-polypoid growth was another a key feature of UCAN.

Survival Difference of Colorectal Adenocarcinoma Among Racial and Ethnic Minority Groups: A SEER Database Study.

Despite advances in diagnosis and treatment, racial disparities continue to exist in colorectal cancer (CRC) survival. This study aims to characterize the CRC survival differences among racial and ethnic minority groups. The Surveillance, Epidemiology, and End Results (SEER) database was used to identify adults diagnosed with CRC from 2015 to 2019. Demographics, disease characteristics, surgical treatment, stages, and survival data for individuals who are Hispanic, Black, Southeast Asian, Chinese, American Indian and Alaskan Native (AIAN), Asian Indian and Pakistani (AIP), and Native Hawaiian and Other Pacific Islanders (NHOPI) were extracted. Survival analysis was done using the Kaplan-Meier survival curve. Multivariate analysis was done with the Cox proportional hazard model. There were 40 091 individuals with CRC. NHOPI had the youngest median age of 59 years, while Chinese individuals had the oldest median age of 65 years. From the total sample of their respective subgroups, 43.8% of Black patients and 36.7% of AIAN patients had a median household income of <$60 000, while 55.3% of Southeast Asian patients, 59.7% of Chinese patients, 55.8% of AIP patients, and 65.6% of NHOPI patient had a median household income >$70 000. The 1-year survival rate was lower for patients who were Hispanic (62.0%), Black (60.9%), and AIAN (63.1%). Even after multivariate analysis, Black patients had a significant hazard ratio (HR) of 1.21 (95% confidence interval [95% CI]: 1.05-1.38), while AIP had a HR of 0.68 (95% CI 0.55-0.84), compared to AIAN. Other significant variables that were linked with survival included older age, advanced stage of CRC, a median household income <$60 000, male sex, no surgery, subtotal colectomy/hemicolectomy, and total colectomy. Further studies are needed to elucidate the specific causes of these differences and create appropriate strategies to reduce this survival disparity.

INDOCYANINE GREEN IN LEFT SIDE COLORECTAL SURGERY SEGMENTAL RESECTION TO DECREASE ANASTOMOTIC LEAK: A PARALLEL RETROSPECTIVE COHORT STUDY OF 115 PATIENTS

BackgroundWe investigated the impact of Indocyanine Green (ICG) angiography on reducing anastomotic leakage (AL) after elective left segmental colon resection, including transverse resection. While ICG is widely used in colorectal surgery to assess vascularization, its true effect on AL, particularly in left segmental resections, remains unclear. Study DesignThis retrospective, monocentric cohort study included patients undergoing left and transverse colon resection from January 2017 to July 2023. Patients were divided into ICG and no-ICG groups. The primary outcome was AL, with secondary outcomes including postoperative morbidity and length of stay. ResultsOf the 115 patients enrolled, 53 received ICG and 63 did not. AL occurred in 6 patients in the no-ICG group, but none in the ICG group. No significant correlation was found between ICG use and other confounding factors. Postoperative length of stay was also shorter in the ICG group. ConclusionsThe use of ICG was associated with a reduction in AL, with no cases in the ICG group. These findings suggest a potential benefit of ICG, warranting confirmation in future large-scale studies. Clinical trial registrationclinicaltrial.gov (NCT05981937)