Comparison of clinical outcomes of robotic-assisted and video-assisted esophagectomy for esophageal cancer.

INTRODUCTION: Robotic-assisted minimally invasive esophagectomy (RAMIE) is a recently developed technique for the treatment of resectable esophageal cancer. The present study compares the outcomes of RAMIE and video-assisted thoracoscopic esophagectomy (VATE). METHOD: Patients undergoing minimally invasive esophageal surgery between December 2020 and September 2022 were included in the study, while those undergoing conventional surgery were excluded. The patients were divided into two groups, as those undergoing RAMIE (Group 1) and those undergoing VATE (Group 2). The demographic and clinical characteristics, intraoperative parameters, pathological data, and postoperative parameters of the groups were compared. RESULTS: A total of 28 patients were included in the study, with 13 patients in Group 1 and 15 patients in Group 2. The gender distribution was similar (P = 0.488), and the mean age was 64.7 and 59.0 years in Groups 1 and 2, respectively (P = 0.068). The majority of the sample was in the ASA2 category (46.2% vs. 66.7%, P = 0.341); Ca19.9 levels were higher in Group 1 than in Group 2 (25.7 vs. 13.7, P = 0.027); preoperative Hb was lower in Group 1 than in Group 2 (10.9 g/dL vs. 12.2 g/dL, P = 0.043); the most commonly performed surgery was the McKeown procedure (69.2% vs. 66.7%, P = 0.492); an intraoperative feeding jejunostomy was placed only in Group 2; the operation time was similar between the groups (338.5 min vs. 340 min, P = 0.916); and the distribution of tumor localizations was similar between the groups (P = 0.407). In terms of tumor histology, squamous cell carcinoma (SCC) was the most common tumor type in the two groups (84.6% vs. 80%, P = 0.636); the tumor diameter was similar between the groups (14.9 vs. 18.1, P = 0.652); the number of removed lymph nodes was similar between the groups (24.9 vs. 22.5, P = 0.419); and the number of metastatic lymph nodes was higher in Group 2 (0.08 vs. 1.07, P = 0.27). One patient in Group 2 underwent repeat surgery due to suspected ischemic anastomosis; the distribution of postoperative complications according to the Clavien-Dindo classification system was similar in the two groups (P = 0.650); there was no early mortality within the first 30 days in either group; one patient in Group 2 was re-admitted within 90 days of discharge with decreased oral intake; the length of hospital stay was shorter in Group 1 (9 days vs. 16.5 days, P = 0.006); and the patients in Group 2 more often received neoadjuvant therapy in proportion to the disease stage (15.4% vs. 60%, P = 0.016). CONCLUSION: Robotic procedures can be safely performed in esophageal cancers with complication rates and oncological radicality similar to those of other minimally invasive techniques.

Short-term surgical outcomes of robotic gastrectomy. A single center/single surgeon experience.

AIM: Surgical resection is considered the optimum approach to the treatment of gastric cancer. The present study evaluates the efficacy of robotic surgery for the treatment of gastric cancer. METHOD: Included in the study were 30 patients who underwent robotic surgery for gastric cancer at the General Surgery Clinic between July 2021 and 2022. The demographic and clinical properties of the patients,intraoperative and postoperative results, tumor Characteristics, and early morbidity and mortality values were evaluated. RESULTS: The mean age of the 30 (F/M:8/22) patients was 63.9 (42-83) years, among which 20 (66.7%) had undergone neoadjuvant treatment. The mean surgery duration was 252.82 (110-380) minutes. A subtotal gastrectomy was performed in 10 patients (33%), while the remaining 20 patients (67%) underwent a total gastrectomy. The operation was converted to open surgery in four patients (13.2%). No intraoperative complications were seen, although one patient (3%) underwent re-anastomosis on postoperative day 3 due to an obstruction in the gastroenterostomy anastomosis. The mean largest diameter of the tumor was 4.6 (0-9) cm; the mean number of resected lymph nodes was 30.8 (11-58); and the mean duration of hospital stay was 5.9 (3-12) days. Early mortality within the first 30 days was seen in one patient with a cardiac cause. The rate of re-admission to hospital within the first 90 days was 11% (3 patients). CONCLUSION: Robotic surgery in patients with gastric cancer can be applied efficiently considering the successful clinicopathological results, short hospital stay, and low morbidity and mortality rates. KEY WORDS: Cancer, Morbidity, Mortality, Robotic Surgery, Stomach.

A Rare Tumor in Adulthood: Extrapancreatic Pancreatoblastoma.

Pancreatoblastoma is a rare malignant epithelial neoplasm of the pancreas. It primarily occurs in the pediatric population and is extremely uncommon in adults. A 64-year-old male patient with no known systemic disease presented to our clinic with abdominal pain and dyspeptic complaints. On physical examination, a tender epigastric mass was palpated. The patient was operated on with a preliminary diagnosis of gastrointestinal stromal tumor. Enbloc resection of the mass was performed. The transverse colon was segmentally resected with wedge resection of the gastric corpus. A stapled side-to-side anastomosis was performed. The macroscopic examination of the case revealed a tumoral lesion of approximately 16x13.5x10m, located in the submucosal area between the gastric corpus and the transverse colon. The microscopic examination showed acini, which have a highly cellular appearance, contain areas of necrosis, and form nested structures in places, stratification in places. The immunohistochemical examination demonstrated positive Trypsin expression, while focal positive expression of neuroendocrine markers such as Synaptophysin, Chromogranin, and Insulinomaassociated protein 1 (INSM-1) was observed. In betacatenin staining, aberrant nuclear and cytoplasmic positive expression was observed, and this staining pattern and morphology confirmed the diagnosis of pancreatoblastoma. Pathological Stage:pT3,N0,Mx the patient had an uneventful postoperative period and was referred to the oncology department for adjuvant chemotherapy. Pancreatoblastoma is an extremely rare type of pancreatic cancer and there are no established guidelines for the treatment of this aggressive disease. Surgical resection is recommended if anatomically possible. Pancreatoblastoma should be considered in the differential diagnosis of asymptomatic masses containing cystic-solid components and reaching very large sizes. Key words: Pancreas,Rare tumor, Pancreatoblastoma.

An early experience with the Da Vinci Xi surgical system in colorectal surgery. A single-center study.

AIM: Surgery is the optimum treatment approach in cases of colorectal cancer, with open or minimally invasive surgery options applied to patients in general surgery clinics. We present here an assessment of our use of robotic colorectal surgery for the treatment of colorectal cancer. METHOD: The outcomes of robotic colorectal surgeries performed in the General Surgery Clinic of Basaksehir Cam and Sakura City Hospital were evaluated. The demographic data, indications, type of surgery, complications, duration of postoperative stay and pathology results of the patients were recorded, and the surgical results were evaluated retrospectively. RESULTS: Of the 50 patients who underwent robotic colorectal surgery selected for the study, 19 were female and 31 were male, with a mean age of 60.9 years. Among the patients, 48% received neoadjuvant treatment and the most common tumor localization was the rectosigmoid region (40%), the most frequently performed operation was low anterior resection (44%). An ostomy was created in 50% of the patients, and two patients were converted. The mean duration of surgery was 191 minutes, the mean tumor diameter was 36 mm, the mean total number of lymph nodes dissected was 22.2 and the rate of complications of Clavien Dindo grade 3 or higher was 10%, namely anastomotic leak, anastomotic bleeding and chylous fistula. The mean length of hospital stay was 5 days, and one patient was reoperated due to the development of stomal necrosis. The rate of 90-day unplanned readmission was 10% and the most frequent cause was sub-ileus. One patient died in the postoperative period. CONCLUSION: Robotic surgery is a minimally invasive surgical approach that can be successfully applied in centers where perioperative and postoperative complications can be managed. KEY WORDS: Colorectal Cancer, Minimally Invasive Surgery, Robotic Surgery.

Radiomics of locally advanced rectal cancer: machine learning-based prediction of response to neoadjuvant chemoradiotherapy using pre-treatment sagittal T2-weighted MRI.

PURPOSE: Variable response to neoadjuvant chemoradiotherapy (nCRT) is observed among individuals with locally advanced rectal cancer (LARC), having a significant impact on patient management. In this work, we aimed to investigate the potential value of machine learning (ML)-based magnetic resonance imaging (MRI) radiomics in predicting therapeutic response to nCRT in patients with LARC. MATERIALS AND METHODS: Seventy-six patients with LARC were included in this retrospective study. Radiomic features were extracted from pre-treatment sagittal T2-weighted MRI images, with 3D segmentation. Dimension reduction was performed with a reliability analysis, pair-wise correlation analysis, analysis of variance, recursive feature elimination, Kruskal-Wallis, and Relief methods. Models were created using four different algorithms. In addition to radiomic models, clinical only and different combined models were developed and compared. The reference standard was tumor regression grade (TRG) based on the Modified Ryan Scheme (TRG 0 vs TRG 1-3). Models were compared based on net reclassification index (NRI). Clinical utility was assessed with decision curve analysis (DCA). RESULTS: Number of features with excellent reliability is 106. The best result was achieved with radiomic only model using eight features. The area under the curve (AUC), accuracy, sensitivity, and specificity for validation were 0.753 (standard deviation [SD], 0.082), 81.1%, 83.8%, and 75.0%; for testing, 0.705 (SD, 0.145), 73.9%, 81.2%, and 57.1%, respectively. Based on the clinical only model as reference, NRI for radiomic only model was the best. DCA also showed better clinical utility for radiomic only model. CONCLUSIONS: ML-based T2-weighted MRI radiomics might have a potential in predicting response to nCRT in patients with LARC.

Diagnostic Value of Preoperative Haemoglobin, Albumin, Lymphocyte and Platelet (HALP) Score in Predicting Tumour Budding in Colorectal Cancer.

OBJECTIVE: To investigate the value of preoperative haemoglobin, albumin, lymphocyte, and platelet (HALP) score in predicting tumour budding in colorectal carcinoma. STUDY DESIGN: Observational study. PLACE AND DURATION OF STUDY: University of Health Sciences, Basaksehir Çam and Sakura City Hospital Istanbul/Turkey, between May 2020 and May 2021. METHODOLOGY: The colorectal cancer patients who underwent surgery were divided into two groups according to the presence or absence of tumour budding. A total of 110 patients were included in the study, and there were 31 patients in group 1 and 79 patients in group 2. The predictive value of the HALP score in predicting tumour budding at the determined cut-off point was evaluated. RESULTS: The mean HALP score was similar in both groups (p=0.459). The rate of lymphovascular invasion was higher in group 2 (p=0.002), and T3 and T4 tumours were more common in group 2 (p<0.001). The number of metastatic lymph nodes was higher in group 2 (p=0.049). When the patients in group 2 were divided into subgroups according to the degree of tumour budding, the HALP score differed between intermediate and high budding groups (p=0.032). A HALP value of >31.6 predicted the presence of tumour budding with a sensitivity of 70.89% and a specificity of 48.39%. CONCLUSION: The presence of tumour budding is associated with aggressive phenotypic features in colorectal carcinoma. The preoperative prediction of tumour budding can serve as a guide in the development of individualised therapy plans. The HALP score was associated with the presence of intermediate or high degree of tumour budding. KEY WORDS: Colorectal cancer, Tumor, Pathology, Hemoglobin, Albumin.

The effect of mutation status, pathological features and tumor location on prognosis in patients with colorectal cancer.

OBJECTIVE: Colorectal cancer is the most common malignancy of the gastrointestinal tract. It is the third most common tumor in both genders and the second reason of cancer-related deaths. In recent years, tumor location has gained importance as a prognostic indicator. In this study, we aimed to analyze if there was a prognostic effect of tumor location, the pathological features, and the mutation status of patients on survival. METHODS: Two-hundred and ten colorectal cancer patients aged 18 years and older were included into the study. One-hundred and forty-two patients had left-sided tumor and 68 patients had right-sided tumor. Patients who had other malignancies rather than squamous cell skin cancer and in situ cervical cancer were excluded. All statistical tests were carried out using two-sided process, and a p≤0.05 was considered statistically significant. RESULTS: There were 140 men and 70 women in the study. The median age of the patients was 62 years old. There was no statistically significant difference according to tumor location and survival of patients. The overall survival of patients with right-sided tumors was 60.5 months and 47.2 months for left-sided tumors. Disease-free survival of patients was 63.7 months for right-sided tumors and 46 months for left-sided ones. Perineural invasion, grade and stage were crucial prognostic parameters. Disease-free survival was longer for female colorectal cancer patients. CONCLUSION: According to our study, survival of patients was similar regardless of tumor location. This can be explained by the different sequencing of treatment strategies and divergent population genetics.

The effect of mutation status, pathological features and tumor location on prognosis in patients with colorectal cancer

SUMMARY OBJECTIVE: Colorectal cancer is the most common malignancy of the gastrointestinal tract. It is the third most common tumor in both genders and the second reason of cancer-related deaths. In recent years, tumor location has gained importance as a prognostic indicator. In this study, we aimed to analyze if there was a prognostic effect of tumor location, the pathological features, and the mutation status of patients on survival. METHODS: Two-hundred and ten colorectal cancer patients aged 18 years and older were included into the study. One-hundred and forty-two patients had left-sided tumor and 68 patients had right-sided tumor. Patients who had other malignancies rather than squamous cell skin cancer and in situ cervical cancer were excluded. All statistical tests were carried out using two-sided process, and a p≤0.05 was considered statistically significant. RESULTS: There were 140 men and 70 women in the study. The median age of the patients was 62 years old. There was no statistically significant difference according to tumor location and survival of patients. The overall survival of patients with right-sided tumors was 60.5 months and 47.2 months for left-sided tumors. Disease-free survival of patients was 63.7 months for right-sided tumors and 46 months for left-sided ones. Perineural invasion, grade and stage were crucial prognostic parameters. Disease-free survival was longer for female colorectal cancer patients. CONCLUSION: According to our study, survival of patients was similar regardless of tumor location. This can be explained by the different sequencing of treatment strategies and divergent population genetics.

Changes in olfactory function and olfactory bulb after treatment for acromegaly.

PURPOSE: This study aimed to investigate the olfactory functions of the acromegaly patients and to discuss the possible causes of olfactory dysfunction in acromegaly patients. METHODS: A case-control study was carried out in a tertiary referral center. 52 patients with acromegaly (Acromegaly group) and 52 healthy individuals (Control group) were included in the study. All acromegaly patients included in the study were in the late postoperative period. The Connecticut Chemosensory Clinical Research Center (CCCRC) test was carried out and olfactory bulb (OB) volumes were measured in both of the groups. RESULTS: There was a significant difference between the mean CCCRC total scores of the acromegaly and control groups (p = .000). The mean of right and left OB volumes in the acromegaly group was significantly higher than the control group (p = .004) CONCLUSION: In this study, we found that acromegaly patients are likely to experience olfactory dysfunction. It is important to examine these patients' olfactory functions at the time of diagnosis and clinic follow-up. CLINICAL TRIAL NUMBER: NCT04138537.

Gastrointestinal tract schwannomas and brief review of literature.

Schwannomas originating from Schwann cells arise from the peripheral nerve sheath and are slow-growing, benign tumors that originate mostly from the mesenchyme. It appears equally in both sexes. Schwannomas are often seen in the 3rd and 5th decades of life. Schwannomas can be seen everywhere where peripheral nerves are seen. Gastrointestinal schwannomas constitute 2-6% of all submucosal masses, and the stomach is the most common region (60-70%). Endoscopic Ultrasound (EUS)-guided sampling of gastrointestinal submucosal lesions has made it possible to achieve preop- erative differential diagnosis. Patients diagnosed with gastrointestinal schwannomas between January 2005 and December 2017 were included in this study. Three out of six patients were females. Median age was 52.5 (44-76) years. Schwannomas were found in two patients in the gastric region, one patient in the appendiceal region, two patients in the colon and one patient in the perianal region. Primary schwannomas are usually benign. Radical resection with free margin is necessary because of the risk of malignant degeneration; chemo and radiotherapy response is indeterminate, and local recurrence rates are high.

Tubular gastric adenocarcinoma: machine learning-based CT texture analysis for predicting lymphovascular and perineural invasion.

PURPOSE: Lymphovascular invasion (LVI) and perineural invasion (PNI) are associated with poor prognosis in gastric cancers. In this work, we aimed to investigate the potential role of computed tomography (CT) texture analysis in predicting LVI and PNI in patients with tubular gastric adenocarcinoma (GAC) using a machine learning (ML) approach. METHODS: Sixty-eight patients who underwent total gastrectomy with curative (R0) resection and D2-lymphadenectomy were included in this retrospective study. Texture features were extracted from the portal venous phase CT images. Dimension reduction was first done with a reproducibility analysis by two radiologists. Then, a feature selection algorithm was used to further reduce the high-dimensionality of the radiomic data. Training and test splits were created with 100 random samplings. ML-based classifications were done using adaptive boosting, k-nearest neighbors, Naive Bayes, neural network, random forest, stochastic gradient descent, support vector machine, and decision tree. Predictive performance of the ML algorithms was mainly evaluated using the mean area under the curve (AUC) metric. RESULTS: Among 271 texture features, 150 features had excellent reproducibility, which were included in the further feature selection process. Dimension reduction steps yielded five texture features for LVI and five for PNI. Considering all eight ML algorithms, mean AUC and accuracy ranges for predicting LVI were 0.777-0.894 and 76%-81.5%, respectively. For predicting PNI, mean AUC and accuracy ranges were 0.482-0.754 and 54%-68.2%, respectively. The best performances for predicting LVI and PNI were achieved with the random forest and Naive Bayes algorithms, respectively. CONCLUSION: ML-based CT texture analysis has a potential for predicting LVI and PNI of the tubular GACs. Overall, the method was more successful in predicting LVI than PNI.

Mechanical Jaundice and Bile Duct Stricture Caused by the Migration of Endoclip and Silk Suture Material into the Common Bile Duct.

It is quite rare the migration of metal clips and silk suture materials into the common bile duct (CBD) that were used for the closure of cystic duct in conventional or laparoscopic cholecystectomy. The most common cause of postoperative jaundice is unrecognised or overlooked stones in the bile ducts during operation. The authors present four patients who developed jaundice and in one case  biliary tract stricture,  caused by the migration of metal clip and silk suture material into CBD  following conventional and laparoscopic cholecystectomy. The migration of endoclip and suture material in to CBD is very rare and it should be kept in mind in post-cholecystectomy jaundice. Key Words: Cholecystectomy, Endoclip migration, Mechanical jaundice, Endoscopic retrograde cholangiopancreatography.

Computed tomography texture analysis in patients with gastric cancer: a quantitative imaging biomarker for preoperative evaluation before neoadjuvant chemotherapy treatment.

PURPOSE: The aim of the study is to explore the role of computed tomography texture analysis (CT-TA) for predicting clinical T and N stages and tumor grade before neoadjuvant chemotherapy treatment in gastric cancer (GC) patients during the preoperative period. MATERIALS AND METHODS: CT images of 114 patients with GC were included in this retrospective study. Following pre-processing steps, textural features were extracted using MaZda software in the portal venous phase. We evaluated and analyzed texture features of six principal categories for differentiating between T stages (T1,2 vs T3,4), N stages (N+ vs N-) and grades (low-intermediate vs. high). Classification was performed based on texture parameters with high model coefficients in linear discriminant analysis (LDA). RESULTS: Dimension-reduction steps yielded five textural features for T stage, three for N stage and two for tumor grade. The discriminatory capacities of T stage, N stage and tumor grade were 90.4%, 81.6% and 64.5%, respectively, when LDA algorithm was employed. CONCLUSION: CT-TA yields potentially useful imaging biomarkers for predicting the T and N stages of patients with GC and can be used for preoperative evaluation before neoadjuvant treatment planning.

Infiltration of bupivacaine into the preperitoneal space and trocar incisions of patients undergoing laparoscopic totally extraperitoneal repair of unilateral inguinal hernia: a prospective randomized controlled observational study.

INTRODUCTION: Although laparoscopic repair of inguinal hernia is associated with reduced postoperative pain, it is not entirely painless. In addition to reducing the need for analgesic medication, postoperative complications, and hospitalization, postoperative pain control enables early return to normal activity. AIM: To evaluate the efficacy of bupivacaine instilled into the pre-peritoneal space and trocar incisions of patients undergoing laparoscopic totally extraperitoneal (TEP) repair of inguinal hernia. MATERIAL AND METHODS: Bupivacaine was instilled into the pre-peritoneal space and trocar incisions of the patients in group I (n = 23), whereas it was infiltrated only into the trocar incisions of the patients in group II (n = 21). No local anesthetic was administered to the patients in group III (n = 21). Postoperative pain was assessed using the Visual Analog Scale (VAS) at 4 and 24 h, and the dosage of analgesic medication was noted. RESULTS: No significant difference regarding age, gender, body mass index, ASA class, history of abdominal surgery, or smoking was noted between the three groups (p > 0.05). VAS score at 4 h was significantly higher in group III than in groups I and II (p < 0.05). The dosage of analgesic medication was significantly higher in group III than in groups I and II (p < 0.05), with no significant difference between groups I and II (p > 0.05). CONCLUSIONS: Infiltration of long-acting local anesthetic into the pre-peritoneal space and trocar incisions of patients undergoing laparoscopic TEP repair of inguinal hernia reduces the need for analgesic medication by reducing early postoperative pain.

Endoscopic treatment of postoperative biliary fistulas.

BACKGROUND: Biliary fistula is one of the most common complications of liver and biliary tract surgeries. Endoscopic retrograde cholangiopancreatography (ERCP) is used for the diagnosis and treatment of biliary fistulas. In this study, we aimed to analyze the contribution of ERCP in this regard. METHODS: Patients who underwent ERCP for biliary fistulas following liver and biliary tract surgery between January 2012 and December 2017 were included in this study. The demographic characteristics of the patient, surgical procedure, localization of the biliary fistula, classification of biliary duct injury, and success of ERCP were retrospectively evaluated. RESULTS: In total, 90 patients (37 male and 53 female) with a diagnosis of biliary fistula underwent ERCP. Common biliary duct (CBD) cannulation was achieved in 87 patients using ERCP. In five patients, the proximal part of the biliary tract was not visualized, and complete injury of CBD was considered. In ERCP, contrast extravasation was detected in the cystic duct in 44 patients: CBD, eight patients; liver bed, four patients; hepatic duct bifurcation, two patients; the right hepatic canal, seven patients; and the left hepatic canal, two patients. CONCLUSION: ERCP is an effective method for the diagnosis and treatment of biliary diseases. The diagnosis and treatment of postoperative biliary fistulas with ERCP reduces surgery cost, morbidity, and mortality.

Abdominal cocoon syndrome: A rare cause of acute abdomen syndrome.

BACKGROUND: A rare cause of acute abdomen or intestinal obstruction, the abdominal cocoon syndrome is also described in the literature as sclerosing peritonitis or sclerosing encapsulating peritonitis. Abdominal cocoon is characterized by the total or partial wrapping of the abdominal organs by a fibrous membrane. Although it is usually observed in young women, the etiology is unknown. The diagnosis is usually made during laparotomy. In this case series, we aimed to present seven patients diagnosed with abdominal cocoon syndrome during operation. METHODS: The records of patients who underwent laparotomy for abdominal pain and/or intestinal obstruction in our hospital and diagnosed as abdominal cocoon during operation between January 2012 and November 2018 were retrospectively reviewed. The demographic characteristics of the patients, etiologic factors, surgical procedures, operative findings and follow-up of the patients were recorded. RESULTS: Four out of seven patients who were operated for abdominal cocoon were male and 3 of them were female. The median age of patients was 61 (57-63) years in male and 39.6 (28-49) years in female. Six of the patients were operated in emergency conditions with the diagnosis of an acute abdomen or ileus. One of the patients was operated with the diagnosis of an intra-abdominal mass in elective conditions. In five out of seven patients, all of the small intestines were wrapped with a fibrous collagen capsule, while two of the patient intestines were partially wrapped with a fibrous collagen capsule. Four of the patients had no underlying disease, while one of the patients had Familial Mediterranean Fever (FMF), one had Endometriosis and one had beta-blocker medication. One patient who had small bowel necrosis and septic peritonitis were observed during the operation and died post operative 6th days. Postoperative complications were not observed in the follow-up of other patients and reoperation was not required due to recurrence. CONCLUSION: Abdominal cocoon is a condition that is usually diagnosed during operation in patients that were operated for reasons, such as the acute abdomen or intestinal obstruction. When the diagnose delayed, death can be seen due to small bowel necrosis and septic complications. High clinical suspicion and radiological imaging are important in the preoperative diagnosis. Treatment is required adhesiolysis and excision of the fibrous membranes.

Clinical characteristics of appendiceal diverticular disease.

BACKGROUND: Appendiceal diverticular disease (ADD) is a rare pathology which is associated with an increased mortality risk due to rapid perforation and high rates of neoplasm. In our study, we aimed to evaluate the clinical and histopathological characteristics of ADD with differences from acute appendicitis (AA) diagnosis and to determine the association with neoformative processes. METHODS: The 4279 patients who underwent appendectomy were evaluated retrospectively. ADD patients histopathologically classified into four groups. Patients' demographic characteristics, imaging and preoperative laboratory findings, additionally postoperative histopathology results were compared between groups. RESULTS: The prevalence of ADD was 2.29% (n = 98). In addition, the male/female ratio was 2.37 in ADD patients who were found to be significantly older than those with AA patients. Type III was the most frequently (62.2%) identified sub-group of ADD. The incidence of neoplasms, plastrone, and Littre's hernia was found statistically higher in ADD group than AA group. Mucinous adenomas (10.2%) was the most common neoplasm while the carcinoid tumor (1%) and precancerous serrated adenomas (4.1%) were also reported. CONCLUSIONS: As a result, high neoplasm in ADD patients can be shown with incidence of perforation and plastron, and in order to avoid possible neoplasm or major complications, it is necessary to carry out new studies for the right diagnosis of ADD whether the diagnosis is done preoperatively or intraoperatively. We recommend surgical resection of the ADD, which may even be incidentally detected during any surgical procedure, due to its high risk of neoplasm and rapid perforation.

Resection of Mucosal and Submucosal Gastrointestinal Lesions and a Double Endoscope Experience.

AIM: The patients who underwent endoscopic mucosal resection (EMR) and endoscopic submucosal dissection (ESD) for mucosal and submucosal lesions of the esophagus, stomach, and duodenum and the advantages of the double endoscope method we used for traction during ESD were evaluated. MATERIAL AND METHODS: The patients who underwent ESD and EMR due to upper gastrointestinal lesions were evaluated retrospectively between January 2014 and April 2018 in our endoscopy unit. RESULT: The mean age of 10 patients with esophageal lesions was 53 years. ESD was performed for 7 lesions and EMR for 3 lesions. The most common lesion was leiomyoma and the median size of the lesions was 1.4 cm (range, 0.6-2.5 cm).The median age of 26 patients with gastric lesions was 61 years. EMR were performed for 11 lesions and ESD for 15 lesions. Double endoscope was used in 6 patients. One patient had intramucosal carcinoma, while the other lesions were benign and dysplasia was the most common lesion. The median size of lesions was 1.8 cm (range, 1-3 cm).All lesions were evaluated with endoscopic ultrasonography. Bleeding was seen in 4 patients and perforation in 1 patient during ESD and defect was closed with endoscopic clips. CONCLUSION: The advantages of endoscopic resections; short hospitalization, low complication rates, patient comfort, and doesn't require the general anesthesia. For endoscopic resection, we think that the second endoscope shortens the duration of the procedure, reduces the complication rate, and increases the comfort of the endoscopist.

Stent experiences in emergency conditions in acute mechanical intestinal obstruction caused by colorectal cancer.

INTRODUCTION: Stent treatment can be applied to avoid surgery in surgically risky patients or to turn a high-risk emergency operation into a lower-risk elective operation and save time. AIM: In this study, the techniques, clinical efficacy, safety and complications of endoscopic stents applied in emergency conditions were evaluated in patients with acute mechanical intestinal obstruction (AMIO) due to colorectal cancer. MATERIAL AND METHODS: Between 2013 and 2015, 23 patients with an average age of 69.5 ±13.5 years who presented with AMIO and anastomosis stenosis secondarily to cancer to the emergency department were subjected to stent treatment under emergency conditions. RESULTS: Thirteen (56.5%) patients were diagnosed with colon cancer, 5 (21.7%) with rectal cancer, and 5 (21.7%) with stenosis in the previous anastomosis line. Fourteen (60.9%) patients were diagnosed with stage 4 cancer, 7 (30.4%) with stage 3 cancer and 2 (8.7%) with stage 2 cancer. The stents were applied to the sigmoid colon in 10 (43.5%) patients, to the recto-sigmoid area in 9 (39.1%) patients and to the rectum area in 4 (17.4%) patients. While 14 (60.9%) patients had local or locally advanced disease, 9 (39.1%) patients had metastases in different parts of their bodies, particularly in their livers. CONCLUSIONS: The study demonstrates that stents offer a favorable therapeutic alternative to emergency surgery and are associated with promising short-term outcomes as well as an acceptable safety profile for AMIO.

A 4-year single-center experience in the management of esophageal perforation.

BACKGROUND: Esophageal perforation (EP) is a lethal surgical emergency that needs to be diagnosed and treated immediately. Diagnosis and treatment options for EP are limited due to its lower incidence. There are scoring systems proposed for this purpose; however, they cannot be applied to every patient. The recent trend in the treatment of EP is toward the non-operative approach over the surgical treatment methods. The purpose of the present study was to evaluate our treatment methods and outcomes in patients with EP. METHODS: Thirteen patients with EP treated in our clinic between 2013 and 2017 were retrospectively reviewed. The Pittsburgh Perforation Severity Score (PSS), systemic condition status, and Clavien-Dindo Classification (CDC) score were assessed, and treatment methods were reviewed. Their effects on morbidity and mortality were examined using Fisher's exact test and biserial correlation test. RESULTS: A total of 13 patients (six males and seven females; median age 64 years) were included in the study. Ten patients were managed non-operative, and three were treated surgically. Of the 10 patients, two had additional surgery after non-operative management. The PSS, systemic condition status, CDC score, duration of stay in the hospital, time to diagnosis, presence of hypotension, and being in shock were strongly correlated with mortality (p<0.05). The PSS, CDC score, and stay in the intensive care unit were strongly correlated with morbidity (p<0.05). The comparison between the non-operative and operative groups did not yield a statistically significant difference in mortality and morbidity. CONCLUSION: Even if the scoring systems help to understand the severity of the condition, they are inadequate to determine the treatment option. Early diagnosis and treatment are the most important steps in management. Operative and non-operative treatment options are not superior to each other, but their complementary use will be more beneficial for the patients.