Adjuvant therapy may improve overall survival in high-risk periampullary adenocarcinomas patients - A match-pair analysis from a multi-institutional cohort study (The MIPPAP study).

BACKGROUND: The role of adjuvant therapy in resected periampullary adenocarcinomas is equivocal due to contrasting data and limited prospective trials. METHODS: The Multicentre Indian Pancreatic & Periampullary Adenocarcinoma Project (MIPPAP), included data from 8 institutions across India. Of the 1679 pancreatic resections, 736 patients with T3/T4 and/or Node positive adenocarcinomas (considered as high risk for recurrence) were included for analysis. Three (adjuvant): one (observation) matching, using T3/T4 T staging, nodal positivity and ampullary subtype was performed by using the nearest neighbour matching method. RESULTS: Of 736 patients eligible for inclusion, 621 patients were matched of which 458 patients received adjuvant therapy (AT) (predominantly gemcitabine-based) and 163 patients were observed (O). With a median follow-up of 42 months, there was a statistical difference in overall survival in favour of patients receiving AT as compared to those on observation [68.7 months vs. 61.1 months, Hazard ratio: 0.73 (95% CI: 0.54-0.97); p = 0.03]. Besides AT, presence of nodal involvement (median OS: 65.4 months vs not reached; p = 0.04) predicted for inferior OS. CONCLUSIONS: The results of the match-pair analysis suggest that adjuvant therapy improves overall survival in periampullary adenocarcinomas at high risk of recurrence with a greater benefit in T3/T4, node-positive and ampullary subtypes.

Short-term outcomes of enhanced recovery after surgery protocol in minimally invasive oesophagectomy: A prospective study.

BACKGROUND: Although fast-track treatment pathways are well established in colorectal surgeries, their role in oesophageal resections has not been well studied. This study aims to prospectively evaluate the short-term outcomes of enhanced recovery after surgery (ERAS) protocol in patients undergoing minimally invasive oesophagectomy (MIE) for oesophageal malignancy. PATIENTS AND METHODS: We studied a prospective cohort of 46 consecutive patients from January 2019 to June 2022 who underwent MIE for oesophageal malignancy. The ERAS protocol mainly consists of pre-operative counselling, pre-operative carbohydrate loading, multimodal analgesia, early mobilisation, enteral nutrition and initiation oral feed. Principal outcome measures were the length of post-operative hospital stay, complication rate, mortality rate and 30-day readmission rate. RESULTS: The median (interquartile range [IQR]) age of patients was 49.5 (42, 62) years, and 52.2% were female. The median (IQR) post-operative day of intercoastal drain removal and initiation of oral feed was 4 (3, 4) and 4 (4, 6) days, respectively. The median (IQR) length of hospital stay was 6 (6.0, 7.25) days, with a 30-day readmission rate of 6.5%. The overall complication rate was 45.6%, with a major complication (Clavien-Dindo ≥3) rate of 10.9%. Compliance with the ERAS protocol was 86.9%, and the incidence of major complications was associated with failure to follow the protocol ( P = 0.000). CONCLUSIONS: ERAS protocol in minimally invasive oesophagectomy is feasible and safe. This may result in early recovery with shortened length of hospital stay without an increase in complication and readmission rates.

MDCT evaluation of Dorsal Pancreatic Artery and Intrapancreatic arcade anatomy.

OBJECTIVE: The purpose of the study was to analyze the anatomy and variations in the origin of the dorsal pancreatic artery, greater pancreatic artery and to study the various types of arterial arcades supplying the pancreas on multidetector CT (MDCT). METHODS: A retrospective analysis of 747 MDCT scans was performed in patients who underwent triple phase or dual phase CT abdomen between December 2020 and October 2022. Variations in origin of Dorsal pancreatic artery (DPA), greater pancreatic artery (GPA), uncinate process branch were studied. Intrapancreatic arcade anatomy was classified according to Roman Ramos et al. into 4 types-small arcades (type I), small and large arcades (type II), large arcades (type III) and straight branches (type IV). RESULTS: The DPA was visualized in 65.3% (n = 488) of cases. The most common origin was from the splenic artery in 58.2% (n = 284) cases. The mean calibre of DPA was 2.05 mm (1.0-4.8 mm). The uncinate branch was seen in 21.7% (n = 106) with an average diameter of 1.3 mm. The greater pancreatic artery was seen in 57.3% (n = 428) predominantly seen arising from the splenic artery. The most common arcade anatomy was of Type II in 52.1% (n = 63) cases. CONCLUSION: Pancreatic arterial variations are not very uncommon in daily practice. Knowledge of these variations before pancreatic surgery and endovascular intervention procedure is important for surgeons and interventional radiologist.

Laparoscopic transhiatal oesophageal diverticulectomy: An experience of large epiphrenic oesophageal diverticulum and review literature.

Epiphrenic diverticulum is a rare abnormality of the distal oesophagus. Both thoracic and abdominal approaches are suitable for this diverticulum. A 46-year-old male presented with complaints of regurgitation and chest pain for 2 years. Contrast-enhanced computed tomography of the neck, thorax, abdomen and oesophageal endoscopy revealed 12 cm × 10 cm size large intrathoracic oesophageal diverticulum. He underwent an elective laparoscopic transabdominal oesophageal diverticulectomy. Gastrograffin study on the first post-operative day did not reveal any leak. In this case report, we are sharing our experience in the management of large epiphrenic oesophageal diverticulum through a laparoscopic approach. The benefits of the laparoscopic approach include decreased morbidity because we can avoid large thoracotomy or laparotomy incision.

Management options for post-esophagectomy chylothorax.

Chylothorax, although an uncommon complication of esophagectomy, is associated with high morbidity and mortality if not treated promptly. Consequently, knowledge of the thoracic duct (TD) anatomy is essential to prevent its inadvertent injury during surgery. If the TD is injured, early diagnosis and immediate intervention are of paramount importance; however, there is still no universal consensus about the management of post-operative chylothorax. With increasing advances in the spheres of interventional radiology and minimally invasive surgery, there are now several options for managing TD injury. We review this topic in detail to provide a comprehensive and practical overview to help surgeons manage this challenging complication. In particular, we discuss an appropriate step-up approach to prevent the morbidity associated with open surgery as well as the metabolic, nutritional, and immunological disorders that accompany a prolonged illness.

MDCT evaluation of pancreatic contour variations in head, neck, body and tail: surgical and radiological significance.

OBJECTIVE: The purpose of the study was to investigate the incidence of pancreatic contour variations on multidetector CT (MDCT) for abdominal examinations. METHODS: A retrospective analysis of 700 MDCT scans was performed in patients who underwent triple phase CT abdomen between October 2018 and January 2021. After excluding 176 patients, finally total of 524 patients were included in the study. For simplification, we classified the pancreatic contour variations as classified by Ross et al. and Omeri et al. Pancreatic head-neck variations was classified into Type I-anterior, Type II-posterior and Type III-horizontal variety. Pancreatic body-tail variation was divided into Type Ia-anterior projection; Ib-posterior projection and Type IIa-globular, IIb-lobulated, IIc-tapered, and IId-bifid pancreatic tail. RESULTS: The most common type of variation in the head was Type II (n = 112, 21.3%) followed by Type III (n = 37, 7%) and Type I (n = 21, 4%). The most common type of variation in the body of pancreas was Type Ia (n = 33, 6.2%) followed by Type Ib (n = 13, 2.4%). In the tail region of pancreas, the most common variation was Type IIb (n = 21, 4%) followed by Type IIa (n = 19, 3.6%). CONCLUSION: Pancreatic contour variations are not very uncommon in daily practice. Knowledge of these variations is important for surgeons, radiologists and avoids misjudgement of normal pancreatic tissue as tumor or lymph node especially on unenhanced or single phase MDCT.

Thoracoscopic oesophagectomy for end-stage achalasia.

Achalasia cardia is an oesophageal motility disorder characterised by aperistalsis and failure of relaxation of the lower oesophageal sphincter. The management is predominantly palliative with focus on addressing the sphincter that involves either pneumatic dilatation or Heller myotomy which relieves dysphagia in the majority of the cases. End-stage achalasia (ESA) is characterised by failed myotomy, massively dilated and tortuous oesophagus with nutritional deterioration due to progressive dysphagia and vomiting. In these subgroups of patients, oesophagectomy may be the last resort. While oesophagectomy has been described for ESA before, thoracoscopic oesophagectomy has not been reported previously. Hereby, we report our experience of performing minimally invasive oesophagectomy (thoracoscopic) with the gastric pull-up.

Cross-Kingdom Regulation of Putative miRNAs Derived from Happy Tree in Cancer Pathway: A Systems Biology Approach.

MicroRNAs (miRNAs) are well-known key regulators of gene expression primarily at the post-transcriptional level. Plant-derived miRNAs may pass through the gastrointestinal tract, entering into the body fluid and regulate the expression of endogenous mRNAs. Camptotheca acuminata, a highly important medicinal plant known for its anti-cancer potential was selected to investigate cross-kingdom regulatory mechanism and involvement of miRNAs derived from this plant in cancer-associated pathways through in silico systems biology approach. In this study, total 33 highly stable putative novel miRNAs were predicted from the publically available 53,294 ESTs of C. acuminata, out of which 14 miRNAs were found to be regulating 152 target genes in human. Functional enrichment, gene-disease associations and network analysis of these target genes were carried out and the results revealed their association with prominent types of cancers like breast cancer, leukemia and lung cancer. Pathways like focal adhesion, regulation of lipolysis in adipocytes and mTOR signaling pathways were found significantly associated with the target genes. The regulatory network analysis showed the association of some important hub proteins like GSK3B, NUMB, PEG3, ITGA2 and DLG2 with cancer-associated pathways. Based on the analysis results, it can be suggested that the ingestion of the C. acuminata miRNAs may have a functional impact on tumorigenesis in a cross-kingdom way and may affect the physiological condition at genetic level. Thus, the predicted miRNAs seem to hold potentially significant role in cancer pathway regulation and therefore, may be further validated using in vivo experiments for a better insight into their mechanism of epigenetic action of miRNA.

Impact of nasogastric tube exclusion after minimally invasive esophagectomy for esophageal cancer: a single-center retrospective study in India.

Purpose: This study examines the impacts of omitting nasogastric tube (NGT) placement following cervical esophagogastric anastomosis (CEGA) in Enhanced Recovery After Surgery (ERAS) protocols, comparing outcomes to those from early NGT removal. Methods: In a retrospective cohort of esophagectomy patients treated for esophageal cancer, participants were divided into two groups: group 1 had the NGT inserted post-CEGA and removed by postoperative day 3, while group 2 underwent the procedure without NGT placement. We primarily investigated anastomotic leak rates, also analyzing hospital stay duration, pulmonary complications, and NGT reinsertion. Results: Among 50 esophageal squamous cell carcinoma patients, 30 in group I were compared with 20 in group II. The baseline demographic and tumor characteristics were similar between both groups. The overall incidence of anastomotic leak was 14.0%, comparable in both groups (16.7% vs. 10.0%, p = 0.63). The postoperative hospital stay was significantly shorter in the no NGT group (median of 7 days vs. 6 days, p = 0.03) with similar major morbidity (Clavien-Dindo grade ≥IIIa; 13.3% vs. 5.0%, p = 0.63). There was no 30-day mortality, and one patient in each group had reinsertion of NGT for conduit dilatation. Conclusion: The exclusion of an NGT across CEGA after esophagectomy did not influence the anastomotic leak rate with comparable complications and a shorter hospital stay.

Post-Esophagectomy Hiatal Hernia: A Case Series.

Post-esophagectomy hiatal hernia is a rare complication having varied presentation from asymptomatic cases detected incidentally on follow-up imaging to acute surgical emergency for strangulation or gangrene. Patients presenting as a surgical emergency have a prolonged post-operative course with significant morbidity. We present three cases of post-esophagectomy hiatal hernia. Two of the three cases were operated for esophageal squamous cell carcinoma (SCC) and one patient was operated for esophageal leiomyomatosis. Two of the three cases (SCC and esophageal leiomyomatosis) underwent minimally invasive Mckeown's esophagectomy and one case underwent robotic transthoracic Ivor-Lewis esophagectomy. All cases underwent contrast enhanced CT (CECT) and were biopsy proven prior to their index surgery. Both cases of SCC had prior neoadjuvant chemoradiation followed by surgery while esophageal leiomyomatosis underwent upfront surgery. All three cases have improved symptomatically and are doing well on follow up (case 1 - 12 months, cases 2 and 3 - 3 months).  All three of our cases have different clinical presentation in terms of symptoms, severity, and time duration from index surgery. Two of the three cases underwent emergency surgery and one case which was asymptomatic detected incidentally on surveillance imaging and was managed conservatively. Post-esophagectomy hiatal hernia is a rare entity with varying presentation. The management options in such cases vary depending on the severity of symptoms and time after index surgery. In cases presenting as surgical emergency, successful management depends on prompt detection, early surgery, proper post-operative care, and rehabilitation.

Synchronous Squamous Cell Carcinoma of Rectum and Anal Canal Detected by FDG PET/CT-A Rare Entity.

ABSTRACT: Squamous cell carcinoma is the most common malignancy of the anal canal, and FDG PET/CT is recommended in its nodal staging, radiotherapy planning, and response assessment. We share an interesting case of dual primary malignancy of the anal canal and rectum, which was detected by 18 F-FDG PET/CT and confirmed on histopathology as synchronous squamous cell carcinoma.

Carcinosarcoma of the Esophagus-A Diagnostic Challenge.

Background: Esophageal carcinosarcoma is an uncommon histologic variant of esophageal malignancy, occurring in approximately 0.5% to 2.8% of patients. Esophageal carcinosarcoma usually involves the middle and lower esophagus and consists of both epithelial and mesenchymal components. Case Report: A 54-year-old male presented with painless progressive dysphagia associated with loss of weight for 2 months. Esophagogastroduodenoscopy suggested an ulceroproliferative polypoidal growth in the lower thoracic esophagus. Biopsies from the growth showed leiomyosarcoma with tumor cells immunopositive for vimentin, h-Caldesmon, and smooth muscle actin and negative for pan-cytokeratin. Imaging suggested a heterogeneously enhancing polypoidal growth arising in the lower third of the esophagus. Thoracoscopic-assisted McKeown esophagectomy with gastric pull-up and standard 2-field lymphadenectomy was performed. A minor epithelial component was identified on final pathologic examination in addition to the leiomyosarcoma found on the preoperative biopsy. This epithelial component was invasive squamous cell carcinoma and was positive for pan-cytokeratin and p40, both of which were negative in the sarcomatous component. The patient received 4 cycles of adjuvant chemotherapy (carboplatin and paclitaxel). However, he developed a recurrence in the left cervical lymph node 4 months after adjuvant treatment and died 2 months after the diagnosis of recurrence. Conclusion: Carcinosarcoma can be easily missed in the presence of predominantly sarcomatous components even on immunohistochemical analysis. These tumors may be associated with poor prognosis and may have early recurrence despite surgery and adjuvant treatment.

Laparoscopic Witzel feeding jejunostomy: a procedure overlooked!

Purpose: Feeding jejunostomy (FJ) is a critical procedure to establish a source of enteral nutrition for upper gastrointestinal disorders. Minimally invasive surgery has the inherent benefit of better patient outcomes, less postoperative pain, and early discharge. This study aims to describe our total laparoscopic technique of Witzel FJ and to compare its outcome with its open counterpart. Methods: A retrospective database analysis was performed in patients who underwent laparoscopic (n = 20) and open (n = 21) FJ as a stand-alone procedure from July 2018 to July 2022. A readily available nasogastric tube (Ryles tube) and routine laparoscopic instruments were used to perform laparoscopic FJ. Perioperative data and postoperative outcomes were analyzed. Results: Baseline preoperative variables were comparable in both groups. The median operative duration in the laparoscopic FJ group was 180 minutes vs. 60 minutes in the open FJ group (p = 0.01). Postoperative length of hospital stay was 3 days vs. 4 days in the laparoscopic and open FJ groups, respectively (p = 0.08). Four patients in the open FJ group suffered from an immediate postoperative complication (none in the laparoscopic FJ group). After a median follow-up of 10 months, fewer patients in the laparoscopic FJ group had complications such as tube clogging, tube dislodgement, surgical-site infection, and small bowel obstruction. Conclusion: Laparoscopic FJ with the Witzel technique is a safe and feasible procedure with a comparable outcome to the open technique. Patient selection is vital to overcome the initial learning curve.

Open injury, robotic repair-moving ahead! Total robotic Roux-en-Y hepaticojejunostomy for post-open cholecystectomy Bismuth type 2 biliary stricture using indocyanine green dye.

Hepaticojejunostomy is currently the best treatment for post-cholecystectomy biliary strictures. Laparoscopic repair has not gained popularity due to difficult reconstruction. We present case of 43-year-old-female with Bismuth type 2 stricture following laparoscopic converted open cholecystectomy with bile duct injury done elsewhere. Position was modified Llyod-Davis position and four 8-mm robotic ports (including camera) and 12-mm assistant port were placed. The procedure included noticeable steps such as adhesiolysis, identification of gallbladder fossa, identification of common hepatic duct, lowering of hilar plate etc. Operating and console time were 420 and 350 minutes and blood loss was 100 mL. Patient was discharged on postoperative day 4. Robotic repair (hepaticojejunostomy) of biliary tract stricture after cholecystectomy is safe and feasible with good outcomes.

Practice Patterns and Survival in Patients with Resected Pancreatic Ductal Adenocarcinomas (PDAC) - Results from the Multicentre Indian Pancreatic & Periampullary Adenocarcinoma Project (MIPPAP) Study.

BACKGROUND: There is limited data from India with regard to presentation, practice patterns and survivals in resected pancreatic ductal adenocarcinomas (PDACs). METHODS: The Multicentre Indian Pancreatic & Periampullary Adenocarcinoma Project (MIPPAP) included data from 8 major academic institutions across India and presents the outcomes in upfront resected PDACs from January 2015 to June 2019. RESULTS: Of 288 patients, R0 resection was achieved in 81% and adjuvant therapy was administered in 75% of patients. With a median follow-up of 42 months (95% CI: 39-45), median DFS for the entire cohort was 39 months (95% CI: 25.4-52.5), and median overall survival (OS) was 45 months (95% CI: 32.3-57.7). A separate analysis was done in which patients were divided into 3 groups: (a) those with stage I and absent PNI (SI&PNI-), (b) those with either stage II/III OR presence of PNI (SII/III/PNI+), and (c) those with stage II/III AND presence of PNI (SII/III&PNI+). The DFS was significantly lesser in patients with SII/III&PNI+ (median 25, 95% CI: 14.1-35.9 months), compared to SII/III/PNI + (median 40, 95% CI: 24-55 months) and SI&PNI- (median, not reached) (p = 0.036)). CONCLUSIONS: The MIPPAP study shows that resectable PDACs in India have survivals at par with previously published data. Adjuvant therapy was administered in 75% patients. Adjuvant radiotherapy does not seem to add to survival after R0 resection.

Adenosquamous Carcinoma of the Extrahepatic Bile Duct.

Background: Most malignant tumors arising from the biliary tract are adenocarcinomas. Adenosquamous carcinoma is an uncommon variant of extrahepatic bile duct cancer that is associated with more aggressive behavior than adenocarcinoma. Case Report: A 58-year-old male presented with complaints of obstructive jaundice and dull aching pain in the abdomen. At his initial evaluation in another hospital, ultrasound of the abdomen and magnetic resonance cholangiopancreatography revealed common bile duct dilatation with an ill-defined lesion in the periampullary region. Endoscopic retrograde cholangiopancreatography showed infiltration of the ampulla. Biopsy specimen taken during stenting of the common bile duct suggested dysplasia. Because of recurrent jaundice, the patient was referred to our institution, and contrast-enhanced computed tomography (CT) of the abdomen showed a hypoenhancing lesion with ill-defined margins in the head of the pancreas. The patient underwent a Whipple procedure. Microscopic examination of the pancreaticoduodenectomy specimen showed an invasive adenosquamous tumor arising from the distal part of the common bile duct that infiltrated the body and head of the pancreas, involved the wall of the duodenum, and reached the duodenal mucosa. Morphologic diagnosis was supported by immunohistochemistry profile. Postoperative contrast-enhanced CT of the abdomen showed multiple enlarged mesenteric lymph nodes and multiple lesions in both lobes of the liver, suggestive of metastasis. The patient died 1 week after surgery. Conclusion: Because the clinical, pathologic, and prognostic characteristics of adenosquamous carcinoma are poorly known, early diagnosis of this rare entity is warranted for patient management.

Gall bladder tuberculosis: Review of literature.

Gall bladder tuberculosis (GB TB) is a very rare disease and scarce data is available on exact incidence and clinicopathogenesis even in endemic areas. The aim is to provide an insight into epidemiology, pathophysiology and management for better understanding of gall bladder tuberculosis. We collected data available from the literature on all histologically proven gall bladder tuberculosis. Case reports with either no article or only abstracts were available excluded from the study. Fifty two case reports and series with total 73 patients were included in this study. Mean age of patients was 48 years (Range 8-86 years) with male: female ratio of 1:1.7. 53 (73%) patient had isolated disease and 18 (24%) had associated abdominal tuberculosis. 3 (4%) of patients had concomitant and 7 (9%) had past history of pulmonary tuberculosis. 39 patients presented as cholecystitis and 25 as gall bladder mass. 44 (60%) patients had gall stones and majority of them (56%) are multiple. Granuloma and caseous necrosis was found in 80% & 60% of patients respectively. In conclusion, Gall bladder tuberculosis is a very uncommon presentation of abdominal tuberculosis. Pre-operative diagnosis is not possible due to lack of specific diagnostic test so increase in awareness and a high index of suspicious is required.

Robotic-assisted resection of proximal jejunal ischemic stricture and intracorporeal robot-sewn anastomosis.

With the advent of robotic surgery as an effective means of minimally invasive surgery in the last decade, more and more surgeries are being performed robotically in today's world. Robotic surgery has several advantages over conventional laparoscopic surgery, such as three-dimensional vision with depth perception, magnified view, tremor filtration, and, more importantly, degrees of freedom of the articulating instruments. While the literature is abundant on robotic cholecystectomy and highly complex hepatobiliary surgeries, there is hardly any literature on robotic small bowel resection with intracorporeal anastomosis. We present a case of a 50-year-old male patient with a symptomatic proximal jejunal ischemic stricture who underwent robotic-assisted resection and robot-sewn intracorporeal anastomosis in two layers. He did well in the postoperative period and was discharged on postoperative day 4 with uneventful recovery. We hereby discuss the advantages and disadvantages of robotic surgery in such a scenario with a review of the literature.