Hartmann's Operation Research Articles

An actinomycosis infection resembling peritoneal dissemination of rectal cancer: a case report

BackgroundActinomycosis is a suppurative and granulomatous inflammation commonly caused by Actinomyces israelii. Due to its rarity and the paucity of characteristic clinical features, diagnosis of intra-abdominal actinomycosis is challenging, especially when the patient has a treatment history of abdominal cancer.Case presentationThe patient is a 72-year-old man who has a history of multiple abdominal surgeries for rectal cancer, including low anterior resection for primary rectal cancer, partial hepatic resection for metachronous liver metastasis, and Hartmann surgery for local recurrence. The patient has also undergone parastomal hernia repair using the Sugarbaker method. One year after hernia repair, computed tomography (CT) identified a mass lesion between the abdominal wall and the mesh, suggesting the possibility of peritoneal recurrence of rectal cancer. The accumulation of fluorodeoxyglucose (FDG) was evident via positron emission tomography-CT (PET-CT), while tumor marker levels were within the normal range. On laparotomy, the small intestine, abdominal wall, mesh, colon, and stoma were observed to be associated with the mass lesion, and en bloc resection was carried out. However, postoperative histopathological examination revealed an actinomyces infection without any cancerous cells.ConclusionsThis case highlights the challenges faced by surgeons regarding preoperative diagnosis of actinomycosis, especially when it occurs after the resection of abdominal cancer. Also, this case reminds us of the importance of a histopathological examination for abdominal masses or nodules before starting chemotherapy.

Concurrent intestinal plasmablastic lymphoma and diffuse large B-cell lymphoma with a clonal relationship: a case report and literature review.

Herein, we report a case of plasmablastic lymphoma (PBL) and diffuse large B-cell lymphoma (DLBCL) that occurred concurrently in the large intestine. An 84-year-old female presented with a palpable rectal tumor and ileocecal tumor observed on imaging analyses. Endoscopic biopsy of both lesions revealed lymphomatous round cells. Hartmann's operation and ileocecal resection were performed for regional control. The ileocecal lesion consisted of a proliferation of CD20/CD79a-positive lymphoid cells, indicative of DLBCL. In contrast, the rectal tumor showed proliferation of atypical cells with pleomorphic nuclei and abundant amphophilic cytoplasm, with immunohistochemical findings of CD38/CD79a/MUM1/MYC (+) and CD20/CD3/CD138/PAX5 (-). Tumor cells were positive for Epstein-Barr virus- encoded RNA based on in situ hybridization and MYC rearrangement in fluorescence in situ hybridization analysis. These findings indicated the rectal tumor was most likely a PBL. Sequencing analysis for immunoglobulin heavy variable genes indicated a common B-cell origin of the two sets of lymphoma cells. This case report and literature review provide new insights into PBL tumorigenesis.

Preoperative risk factors and cumulative incidence of temporary ileostomy non-closure after sphincter-preserving surgery for rectal cancer: a meta-analysis

BackgroundTemporary ileostomy (TI) has proven effective in reducing the severity of anastomotic leakage after rectal cancer surgery; however, some ileostomies fail to reverse over time, leading to conversion into a permanent stoma (PS). In this study, we aimed to investigate the preoperative risk factors and cumulative incidence of TI non-closure after sphincter-preserving surgery for rectal cancer.Materials and methodsWe conducted a meta-analysis after searching the Embase, Web of Science, PubMed, and MEDLINE databases from their inception until November 2023. We collected all published studies on the risk factors related to TI non-closure after sphincter-preserving surgery for rectal cancer.ResultsA total of 1610 studies were retrieved, and 13 studies were included for meta-analysis, comprising 3026 patients. The results of the meta-analysis showed that the identified risk factors included older age (p = 0.03), especially > 65 years of age (p = 0.03), male sex (p = 0.009), American Society of Anesthesiologists score ≥ 3 (p = 0.004), comorbidity (p = 0.001), and distant metastasis (p < 0.001). Body mass index, preoperative hemoglobin, preoperative albumin, preoperative carcinoma embryonic antigen, tumor location, neoadjuvant chemoradiotherapy, smoking, history of abdominal surgery, and open surgery did not significantly change the risk of TI non-closure.ConclusionWe identified five preoperative risk factors for TI non-closure after sphincter-preserving surgery for rectal cancer. This information enables surgeons to identify high-risk groups before surgery, inform patients about the possibility of PS in advance, and consider performing protective colostomy or Hartmann surgery.

Comparison of the risk of postoperative wound infection in patients with rectal cancer by laparoscopic versus open Hartmann's surgery

AbstractTraditional Hartmann surgery is used when the patient is in an acute case where it might not be safe to carry out a one‐stage intestinal anastomosis. Laparoscopy has been extensively applied in the treatment of large intestine, which can significantly improve both short‐ and long‐term outcomes. While randomized, controlled studies and reviews have shown that laparoscopy is superior to that of open‐access colectomy, the impact of Hartmann's surgery on postoperative site infections has not been studied. The purpose of this study is to summarize the existing evidence to show that laparoscopy is better than open operation in the area of injury. Methods The Embase, PubMed and Cochrane Libraries were searched from the moment the database was created until November 2023. For binary results, the odds ratio was estimated, and a weighted average of consecutive results was calculated. Our findings indicate that there is a lower risk for SSIs after laparoscopic approach surgery than an open‐access procedure (OR, 0.26; 95% CI, 0.10, 0.69, p = 0.006); Laparoscopy was associated with a reduction in the risk of dying after surgery (OR, 0.50; 95% CI, 0.30, 0.84, p = 0.009); The operation time was not significantly different in open and laparoscope (MD, 12.23; 95% CI, −5.63, 30.09, p = 0.18); laparoscopy was used to lower the incidence of SSI after surgery and to lower the mortality rate after surgery than by open‐access surgery. However, the time of operation did not differ significantly among the two methods. However, further controlled trials will need to be carried out to verify the results.

Strategy of stage treatment for patients with perforated diverticulitis: first experience

BACKGROUND: The results of surgical treatment of patients with perforative diverticulitis of the colon are still unsatisfactory today. Since the majority of patients undergo Hartmann surgery, the main problem is a large number of stoma patients. Three quarters of them live with a stoma for a long time, which negatively affects their quality of life and increases the cost of treatment.&#x0D; AIM: The purpose of this research work is to improve the immediate results of treating patients with perforative diverticulitis and peritonitis by using staged surgical tactics.&#x0D; MATERIALS AND METHODS: The reaserach included 14 patients with perforative diverticulitis Hinchey grade II-III. The average value of the Mannheim peritoneal index is 18.9 ± 6.3 points. At the first stage of surgical treatment, all the patients underwent colon resection with a zone of perforation of the diverticulum and leaving its muffled ends in the abdominal cavity. After lavage and drainage, temporary closure of the anterior abdominal wall was performed. After 24–48 hours, all the patients underwent colon reconstraction.&#x0D; RESULTS: The average age of the patients was 52.3 ± 12.4 years with 4 women (28.6%) and 10 men (71.4%). The average duration of the first stage was 105.7 ± 27.2 minutes, the second one — 113.2 ± 40.5 minutes. The average hospital-stays were 16.4 ± 7.2 days. There were no anastomosis failures and no lethal outcomes. Complications were noted in 9 patients (64.3%), grade I according to Clavien – Dindo — 83.4%.&#x0D; CONCLUSIONS: The tactics of early surgical treatment is a promising concept for patients with perforative diverticulitis. It provides rapid elimination of the septic focus during the first surgical operation, assumes early reconstruction of the intestine without increasing the number of complications and mortality, and can be used in patients with peritonitis.

Tumour Recurrence in peristomal skin: a case report

Peristomal skin recurrences of colorectal cancer after excision of the primary are rare. Clinically, it presents as a subcutaneous mass throughout the abdominal wall and progressively extends on the abdomen as a skin granuloma. Two colorectal cancer patients (an 83-year-old man, previously treated with left hemicolectomy and right exteriorisation for an obstructive tumour of the descending colon, Stage IV mucinous, poorly differentiated adenocarcinoma, and a 60-year-old man who finished the Hartmann's operation and small bowel resection for a perforated and locally advanced cancer of the descending colon) presented tumour recurrences in their peristomal skin. In both patients, the initial presentation was a tiny mucocutaneous skin granuloma. Subsequently, it became a large-sized, atypical, fungated tumour growth, which was complicated with persistent bleeding. A skin biopsy demonstrated an infiltration of adenocarcinoma throughout the dermis and was diagnosed as a local recurrence accompanied by peristomal skin metastasis. Although abdominal skin metastasis of colorectal cancer is rare, it is often a sign of intraabdominal recurrence. Therefore, any unusual skin lesions around the incision scar or stoma should be early biopsied to rule out local metastasis. Stoma nurse specialists play a crucial role in conducting stoma examinations, which involve both stoma and abdominal assessments. Point of care using ultrasound; clinical photos; telehealth; and patient empowerment could be advanced to facilitate early identification of stomal complications for timely investigation and treatment.

Laparoscopic Reduction of Sigmoidorectal Intussusception by a Modified Hutchinson’s Maneuver

Traditionally, adult intestinal intussusception is treated using Hutchinson’s maneuver, i.e., manual proximal bowel compression and reduction of intussusception. However, the lack of manual contact in laparoscopic surgery limits the application of Hutchinson’s maneuver. Moreover, when the lead point is located distal to the peritoneal refection, and the intussusception cannot be reduced prior to bowel resection, stoma construction (e.g., Hartmann surgery or abdominoperineal resection) becomes necessary. Here, we report a case of sigmoidorectal intussusception treated laparoscopically using a modified Hutchinson’s maneuver. A 74-year-old man was diagnosed with sigmoidorectal intussusception caused by sigmoid colon cancer. Colonoscopy revealed a malignant-appearing obstructing mass telescoping into the rectum, with the lead point at 3 cm from the anal verge. During the endoscopic examination, the lead point did not move. A biopsy of the mass showed adenocarcinoma, leading to a diagnosis of sigmoid cancer with sigmoidorectal intussusception. Since the patient had no symptoms of intestinal ischemia, and defecations were observed, elective laparoscopic surgery was planned. Intraoperatively, an attempt was made to pull out the intussuscepted segment proximally, but the presence of fibrous adhesions made the intussusception irreducible. Therefore, the rectum and mesorectum were mobilized completely up to the level of the levator ani so that the lower rectum could be wrapped with gauze on the anal side of the lead point of the intussusception. The gauze was then pulled up to the oral side and simultaneously, a surgeon pushed the distal end of the intussuscepted segment up using a laparoscopic bowel grasper, with another surgeon pushing the lead point through the anus with fingers. Thereby, the intussusception was reduced to some extent, allowing for low anterior resection. The resected specimen contained an ulcerated moderately differentiated adenocarcinoma of the sigmoid colon measuring 3.5 cm × 3.0 cm, combined with circumferential ischemia with mucosal loss and necrosis over an 8 cm length on the distal side of the tumor. The tumor was stage III (T3 N1). We provide a laparoscopic approach for treating intussusception using a modified Hutchinson’s maneuver. This method will be useful in reducing the intussuscepted segment while avoiding stoma construction.

A case of sigmoid colon perforation due to segmental absence of intestinal musculature (SAIM) accompanied by vascular Ehlers–Danlos syndrome: a case report

BackgroundSegmental absence of intestinal musculature (SAIM) is a partial defect of the intrinsic muscular layer of the intestinal tract. In this report, we describe a case of perforation of the sigmoid colon due to SAIM accompanied by vascular Ehlers–Danlos syndrome (vEDS), which was successfully treated by surgical therapy.Case presentationA male in his 30 s was being followed up for vEDS diagnosed by genetic testing. He had undergone two major vascular surgeries, abdominal aortic artery revascularization and thoracic endovascular aortic repair for a residual dissection and enlarging abdominal aortic aneurysm. On postoperative day 11, the patient developed perforation of the sigmoid colon for which intraperitoneal lavage and drainage, Hartmann surgery, and transverse colostomy were performed. Histological findings showed no disturbance of blood flow or diverticulum but did show a defect in the intrinsic muscular layer around the perforation site, leading to the pathological diagnosis of SAIM and associated perforation of the sigmoid colon. Postoperatively, the patient had no complications and was discharged on postoperative day 18. The patient is being followed as an outpatient and has experienced no relapse.ConclusionsBoth SAIM and vEDS, which may be related diseases, are associated with the presence of tissue fragility and have a high potential to cause intestinal perforation Caution should be exercised during surveillance in patients with constipation and examinations that cause increased intestinal pressure.

Indications and Results of the Hartmann Operation in the General Surgery Department of the Hospital National Ignace Deen Chu De Conakry

Indications and Results of the Hartmann Operation in the General Surgery Department of the Hospital National Ignace Deen Chu De Conakry

Colostomy fistula caused by segmental absence of intestinal musculature: a case report

BackgroundSegmental Absence of Intestinal Musculature (SAIM) is a rare condition associated with intestinal obstruction and perforation. Colostomy fistula as a presentation of SAIM and their association with anastomotic failure have not been previously reported. This case report aimed to raise awareness of this unique manifestation and its potential implications.Case presentationA 58-year-old male with a history of type 2 diabetes, hypertension, and lumbar hernia presented with diarrhea. Lower gastrointestinal endoscopy revealed a tumor in the rectum, for which he was diagnosed with a well-differentiated adenocarcinoma. The patient underwent a laparoscopic Hartmann operation. After the operation, an entero-entero-fistula was identified at the sigmoid colostomy site. Subsequently, laparoscopic reconstruction of the colostomy was performed, and the patient had a favorable postoperative course without complications. Histopathological examination confirmed the localized absence of the muscularis propria in the resected colon, with fibrosis and nearby ganglion cells.ConclusionsThis case highlights the rarity of a colostomy fistula as a manifestation of SAIM and emphasizes the need to consider SAIM in the differential diagnosis for such cases. The presence of SAIM-affected lesions poses a risk of anastomotic failure, underscoring the importance of assessing the risk of complications during future surgeries. Surgeons should be aware of the etiology and potential implications of SAIM to ensure appropriate management and minimize postoperative morbidity. Further studies are warranted to explore the underlying mechanisms and optimize surgical strategies for patients with SAIM and its associated complications. Increased awareness among clinicians is crucial for timely diagnoses and tailored interventions to improve patient outcomes.

P376 HIGH RISK PULMONARY EMBOLISM COMPLICATED BY CARDIOGENIC SHOCK

Abstract The case concerns a 62–year–old woman with no significant cardiovascular history. In October 2022 the patient had an acute diverticulitis hesitated in ostomy placement (Hartmann surgery). Post surgery was complicated by linezolid–resistant Staphylococcus aureus sepsis. During the hospitalization an incidental low risk pulmonary embolism was detected by CTPA. The patient was discharged with thrombohaembolic prophylaxis (subcutaneous LMWH) to be continued for one month. The day after the end of the prophylaxis (November 24th ) she came to the emergency room because of chest pain, dyspnoea, diaphoresis. Hypotension, tachycardia, metabolic alkalosis and increased serum lactate levels were present. CTPA revealed thrombi in both left and right pulmonary arteries, including main bifurcation branches. Compressive ultrasonography in left popliteal vein resulted positive. Due to recent surgery, although not entirely contraindicated, the patient was judged unfit for systemic thrombolysis and percutaneous catheter–directed treatment with Penumbra Indigo system was performed, with suboptimal result. The woman was therefore moved to intensive care unit due to worsening clinical conditions, and the following day a further percutaneous procedure was performed. During the days CTPA and laboratory data detected a great improvement, and reduction of inotropes, diuretic and high flow oxygen therapy was possible. Meanwhile there was a gain of function in right ventricular contractility, with final TAPSE value of 15, and S’ 8 cm/s. Oral anticoagulation with loading dose and rehabilitation therapy were started . The patient was discharged on November 9th in good health.

P-009 COMPLEX ABDOMINAL RECONSTRUCTION COMBINED WITH CYTOREDUCTIVE SURGERY (CRS) + HIPEC IN PATIENT WITH PARIETAL RELAPSE OF COLORECTAL CANCER

Abstract Objectives Presentation through a clinical case of complex reconstruction of the abdominal wall after resection of a parietal metastatic lesion in a difficult location. Material and Methods A 56-year-old male with T3N0M0 adenocarcinoma of the rectum underwent Hartmann's surgery in 2018 with subsequent cytoreductive surgery (CRS) + HIPEC in 2019 due to relapse of his disease. He presented a second relapse of CRC in the form of a parietal lesion of 8×5×6cm with bilateral involvement of the anterior rectus abdominis muscle and contact with the symphysis of the pubis. Results The operative findings showed a large tumor with involvement of both rectus abdominis muscles and the pubic symphysis. Complete resection of the lesion is performed and treatment is completed with HIPEC cycle with MMC in a total of 5 hours. Reconstruction was performed using intraperitoneal biological mesh prosthesis in the area of the parietal defect, together with placement of supra-aponeurotic polypropylene mesh. The patient did not present specific complications of abdominal reconstruction (SSO) and was discharged in 11 days. Conclusions The association of complex abdominal reconstruction techniques after cytoreduction surgery + HIPEC seems to increase the morbidity rates of these patients according to several studies. However, in our experience the use of abdominal wall reconstruction techniques after CRS and HIPEC is safe and does not increase complications, presenting good functional and oncologic results.

Laparoscopic Hartmann Procedure-A Surgery That Still Saves Lives.

A Hartmann operation, which is the intervention by which the lower part of the sigmoid and the upper part of the rectum are resected with the closing of the rectal stump and end colostomy, has as its indications: advanced or complicated rectosigmoid neoplasm, moderate biological condition of the patient, peritoneal sepsis, intestinal occlusion and fragile colonic wall, especially in the context of inflammatory changes. The Hartmann procedure can save lives even at the cost of a stoma reversal failure. The cases operated with the Hartmann procedure by an open approach or laparoscopic approach in our clinic, between 1 January 2016 and 31 December 2020, were admitted in this study and their medical records were reviewed, also making a comparison between the two types of approach. Univariate statistical comparisons but also a multivariate analysis was performed. We performed 985 operations for intestinal and colonic occlusion (7.15% of the total operations in the clinic), 531 (54%) were non-tumor occlusions and 454 (46%) were occlusive tumors (88 Hartmann operations). Of these, 7.3% were laparoscopically performed (7 laparoscopic Hartmann operations and 23 diagnostic laparoscopies). A total of 11 cases (18%) also had colonic perforation. We compared laparoscopic Hartmann with open Hartmann and observed the benefits of laparoscopy for postoperative morbidity and mortality. The presence of pulmonary and cardiac morbidities is associated with the occurrence of general postoperative morbidities, while peritonitis is statistically significantly associated with the occurrence of local complications that are absent after the laparoscopic approach. The Hartmann procedure is still nowadays an operation widely used in emergency situations. Laparoscopy may become standard for the Hartmann procedure and reversal of the Hartmann procedure, but the percentage of laparoscopy remains low due to advanced or complicated colorectal cancer, poor general condition both at the first and second intervention, and the difficulties of reversal of the Hartmann procedure.

Outcomes of Open Versus Laparoscopic Surgery for Colorectal Cancer in the Emergency Setting

Aim: The study aim is to do the comparison of oncological and short-term results of open and laparoscopic surgery for colorectal cancer in emergency setting. Study Design: This retrospective cohort research was held in the Department of Surgery, Civil Hospital, Karachi and Sheikh Zayed Medical College/ Hospital, Rahim Yar Khan for two-years duration from January 2020 to December 2021. Patients and Methods: after approval of this study and an informed consent agreement was signed by each participant. We performed an emergency analysis on 55 consecutive patients who received emergency open (n=40) or laparoscopic (n=15) resection for colorectal cancer. Results: The gender, age, BMI, American Society of Anesthesiologists (ASA) score, tumor location and prior abdominal surgery history were not significantly different between the laparoscopic and open groups. The T4 pathological tumors were more frequent in the open surgery group (50% vs. 13.3%; p=0.031) than in the laparoscopic group. The open surgery group also experienced high proportion of perforation (42.5% vs. 33.3%) and obstruction (47.5% vs. 26.7%) cases. In the laparoscopic group, bleeding or anemia were much common (33.3% vs. 7.5%; p=0.032). The laparoscopic group did not experience any open conversions. The open surgery group had a high pervasiveness of Hartmann's surgery (35%), whereas the laparoscopic group had high pervasiveness of low anterior resection (26.7%; p=0.064). The complication ration at 30-days for laparoscopy (37.5%) and open surgery (33.3%) was comparable (p=0.900). Conclusions: In some individuals with colorectal cancer, emergency laparoscopic surgery has advantages in relation of short-term and oncologic outcomes. As a result, skilled laparoscopic surgeons may actively consider using laparoscopy in life-threatening situations. Keywords: Laparoscopy, colorectal cancer, and emergency.

Laparoscopic versus open Hartmann reversal: a propensity score matching analysis.

The purpose of this study was to compare the short-term outcomes between laparoscopic Hartmann reversal (LHR) and open Hartmann reversal (OHR) in patients who had undergone Hartmann surgery for colorectal cancer (CRC). The patients who underwent Hartmann reversal (HR) at the First Affiliated Hospital of Chongqing Medical University from Jun 2013 to Jun 2022 were retrospectively enrolled. The LHR group and the OHR group were compared using propensity score matching (PSM) analysis. A total of 89 patients who underwent Hartmann reversal (HR) were enrolled in this study. There were 48 (53.9%) patients in the LHR group and 41 (46.1%) patients in the OHR group. After 1:1 ratio PSM, no difference in baseline information remained (p > 0.05). There was no significant difference in operation time, blood loss, postoperative hospital stay, and postoperative complications (p > 0.05) before and after PSM. In the multivariable logistic regression analysis, pre-operative albumin < 42.0g/L was an independent risk factor (p = 0.013 < 0.05, OR = 0.248, 95% CI = 0.083-0.741) for the HR-related complications; however, LHR/OHR was not a predictive risk factor (p = 0.663, OR = 1.250, 95% CI = 0.500-3.122). Based on the current evidence, although there was no difference in short-term prognosis, LHR still had some advantages considering that it was less invasive to the patient.

Surgical tactics in peritonitis, caused by complicated course of colorectal cancer

Objective. To improve surgical tactics in peritonitis, caused by complicated course of colorectal cancer.&#x0D; Materials and methods. Through the 2017 - 2020 yrs period in Department of Surgery in Brovary Multidisciplinary Clinical Hospital 18 patients with colorectal cancer, complicated by peritonitis, were operated. Among them there were 14 (77.8%) men and 4 (22.2%) women, ageing in spectrum 42 – 83 yrs old. In 12 (66.7%) patients the cancer of Stage III was diagnosed, while in 6 (33.3%) – Stage ІV.&#x0D; Results. The right-sided hemicolectomy was performed in 22.2% of the patients, resection of transverse colon – in 3 (16.7%), a left-sided hemicolectomy – 1 (5.6%), Hartmann operation – 9 (50.0%), subtotal colectomy – 1 (5.6%). All the operations were performed without formation of primary anastomoses, and with stoma construction in proximal part of intestine. Reoperation were performed in 4 (22.2%) patients. There were 3 (16.7%) postoperative deaths – in patients with the cancer Stage IV, peritonitis in a terminal stage – due to development of the polyorgan insufficiency syndrome.&#x0D; Conclusion. Formation of primary interintestinal anastomoses while doing surgical intervention for colorectal cancer, complicated by peritonitis, is contraindicated because of high risk of the sutures insufficiency presence.

Heterotopic ossification in primary rectal cancer with squamous cell carcinoma-like differentiation.

Heterotopic ossification (HO), which occurs when bone tissue forms outside the skeleton, is extremely rare in rectal cancer. Adenocarcinoma is the histological type of all reported primary colorectal cancers with HO. However, in the present case, we observed areas of adenocarcinoma with squamous cell carcinoma-like differentiation. Here we conducted histopathological and immunohistochemical analyses to identify the mechanisms of HO development, to differentiate between adenocarcinoma and squamous cell carcinoma-like phenotypes, and to understand the associated prognostic implications. A 62-year-old woman was admitted to our hospital with symptoms of intermittent hematochezia without abdominal pain. Colonoscopy revealed stenosis with a protuberant mass in the rectum. Abdominopelvic contrast-enhanced computed tomography showed irregular wall thickness of the rectum, multiple lymph node metastases, and liver metastases. The rectal tumor exhibited calcified deposits with marked hyperintensity. We then performed Hartmann's operation and D3 lymph node resection. The biopsy specimen revealed tubular and solid adenocarcinoma nests and squamous carcinoma-like components over a necrotic extent without secreted mucin. She received chemotherapy (mFOLFOX6 with bevacizumab) as the first option and is alive 5 months after surgery. To the best of our knowledge, this is the first case of heterotopic ossification in a primary rectal cancer with squamous cell carcinoma-like differentiation that was surgically resected. This case suggests that BMP-2 transformed fibroblasts and pluripotent stem cells into osteocytes. We conclude that the squamous cell carcinoma-like lesion was squamous metaplasia of adenocarcinoma.

1037 The Use of Fluorescence Angiography with Indocyanine Green in Colorectal Surgery – A District General Hospital Experience

Abstract Introduction Indocyanine green (ICG) fluorescence imaging is used in a variety of procedures in in colorectal surgery. It optimises intraoperative vision of anatomical structures by improving blood and lymphatic flow. Traditionally, the vascularization of the colonic stump is subjectively evaluated by the surgeon based on the colour of the bowel wall, the bleeding of the colonic stump, and pulsation of the terminal artery. ICG aims to improve objectivity of this assessment. Aim To assess the feasibility and efficacy of ICG in colorectal operations and report on initial experience since introduction in November 2021. Method Retrospective review of prospectively collected database of all patients undergoing colorectal operations with intraoperative ICG use for any indication. Data collected included patient demographic details including age/gender/comorbidities; operative details including indication/type of surgery, 30day-complications, details/outcome of intraoperative ICG use. Results During the study period ten patients underwent colorectal surgical procedures with intra-operative use of ICG. Surgical options included resectional surgery (right hemicolectomy/transverse colectomy/anterior resection) and reconstructive surgery (reversal of hartmann's operation). Majority were done for colorectal cancer and one for inflammatory bowel disease. ICG was reported useful in all cases in demonstrating vascularity in anastomoses/resection margins. One notable case demonstrated decreased ability of discerning ICG uptake in the presence of tattoo pigmentation (preoperative tumour marking). No adverse events were reported. Conclusion The ICG assessment of colonic vascularization was simple, feasible, with no adverse events in our cohort. Our experience suggests caution is required when interpreting ICG readings in the presence of colonic tattoo.

Bowel Preparation for Elective Hartmann Operation: Analysis of the National Surgical Quality Improvement Program Database.

Background: Use of pre-operative bowel preparation in colorectal resection has not been examined solely in patients who have had colorectal resection with primary colostomy (Hartmann procedure). We aimed to evaluate the association of bowel preparations with short-term outcomes after non-emergent Hartmann procedure. Patients and Methods: The National Surgical Quality Improvement Program Participant Use File colectomy database was queried for patients who had elective open or laparoscopic Hartmann operation. Patients were grouped by pre-operative bowel preparation: no bowel preparation, oral antibiotic agents, mechanical preparation, or both mechanical and oral antibiotic agent preparation (combined). Propensity analysis was performed, and outcomes were compared by type of pre-operative bowel preparation. The primary outcome was rate of any surgical site infection (SSI). Secondary outcomes included overall complication, re-operation, re-admission, Clostridioides difficile colitis, and length of stay. Results: Of the 4,331 records analyzed, 2,040 (47.1%) patients received no preparation, 251 (4.4%) received oral antibiotic preparation, 1,035 (23.9%) received mechanical bowel preparation, and 1,005 (23.2%) received combined oral antibiotic and mechanical bowel preparation. After propensity adjustment, rates of any SSI, overall complication, and length of hospital stay varied significantly between pre-operative bowel regimens (p < 0.005). The use of combined bowel preparation was associated with decreased rate of SSI, overall complication, and length of stay. No difference in rate of re-operation or post-operative Clostridioides difficile infection was observed based on bowel preparation. Conclusions: Compared with no pre-operative bowel preparation, any bowel preparation was associated with reduced rate of SSI, but not rate of re-operation or post-operative Clostridioides difficile infection.

Complicated giant diverticulum of rectosigmoid colon in elderly.

IntroductionGiant colonic diverticulum (GCD) is a rare condition defined by diverticular size over 4 cm. Its presentation is usually asymptomatic.Present of caseWe herein report a rare presentation of ruptured GCD in elderly man who suffered from abdominal pain. The patient underwent primary repair and ileostomy to shorten the operation time instead of Hartmann's operation. Post-operative CT revealed complicated GCD with rupture.DiscussionThe exact mechanism of GCD generation is questionable. Most of case is discovered by radiologic exam or computed tomography (CT) incidentally. The most common complications of GCD are perforation and abscess formation.ConclusionSymptoms of GCD are like those of usual diverticulosis. But, considering the severity of complications, it is better to prioritize surgical treatment at diagnosis.