Retrospective Analysis of Postoperative Nonhepatic Outcomes Following Major Liver Resection.

Background Liver surgery is a major and challenging procedure for the surgeon, the anesthetist, and the patient. The objective of this study was to evaluate the postoperative nonhepatic complications of patients undergoing liver resection surgery with perioperative factors. Methods We retrospectively analyzed 79 patients who underwent liver resection surgeries at the Shaukat Khanum Memorial Cancer Hospital and Research Centre in Lahore, Pakistan, from July 2015 to December 2022. Results The mean age at the time of surgery was 53 years (range: 3-77 years), and the mean BMI was 26.43 (range: 15.72-38.0 kg/m2). Of the total patients, 44.3 % (n = 35) had no comorbidities, 26.6% (n=21) had one comorbidity, and 29.1% (n=23) had two or more comorbidities. Patients in whom the blood loss was more than 375 ml required postoperative oxygen inhalation with a significant relative risk of 2.6 (p=0.0392) and an odds ratio of 3.5 (p=0.0327). Similarly, patients who had a surgery time of more than five hours stayed in the hospital for more than seven days, with a statistically significant relative risk of 2.7 (p=0.0003) and odds ratio of 7.64 (p=0.0001). The duration of surgery was also linked with the possibility of requiring respiratory support, with a relative risk of 5.0 (p=0.0134) and odds ratio of 5.73 (p=0.1190). Conclusion Patients in our cohort who had a prolonged duration of surgery received an increased amount of fluids, and a large volume of blood loss was associated with prolonged stay in the ICU (>2 days), hospital admission (>7 days), ICU readmission, and increased incidence of cardiorespiratory, neurological, and renal disturbances postoperatively.

Patterns, timing and predictors of recurrence following pancreaticoduodenectomy for distal cholangiocarcinoma: An international multicentre retrospective cohort study.

INTRODUCTION: Patients undergoing pancreaticoduodenectomy for distal cholangiocarcinoma (dCCA) often develop cancer recurrence. Establishing timing, patterns and risk factors for recurrence may help inform surveillance protocol strategies or select patients who could benefit from additional systemic or locoregional therapies. This multicentre retrospective cohort study aimed to determine timing, patterns, and predictive factors of recurrence following pancreaticoduodenectomy for dCCA. MATERIALS AND METHODS: Patients who underwent pancreaticoduodenectomy for dCCA between June 2012 and May 2015 with five years of follow-up were included. The primary outcome was recurrence pattern (none, local-only, distant-only or mixed local/distant). Data were collected on comorbidities, investigations, operation details, complications, histology, adjuvant and palliative therapies, recurrence-free and overall survival. Univariable tests and regression analyses investigated factors associated with recurrence. RESULTS: In the cohort of 198 patients, 129 (65%) developed recurrence: 30 (15%) developed local-only recurrence, 44 (22%) developed distant-only recurrence and 55 (28%) developed mixed pattern recurrence. The most common recurrence sites were local (49%), liver (24%) and lung (11%). 94% of patients who developed recurrence did so within three years of surgery. Predictors of recurrence on univariable analysis were cancer stage, R1 resection, lymph node metastases, perineural invasion, microvascular invasion and lymphatic invasion. Predictors of recurrence on multivariable analysis were female sex, venous resection, advancing histological stage and lymphatic invasion. CONCLUSION: Two thirds of patients have cancer recurrence following pancreaticoduodenectomy for dCCA, and most recur within three years of surgery. The commonest sites of recurrence are the pancreatic bed, liver and lung. Multiple histological features are associated with recurrence.

Five-year recurrence/survival after pancreatoduodenectomy for pancreatic adenocarcinoma: does pre-existing diabetes matter? Results from the Recurrence After Whipple's (RAW) study.

BACKGROUND: Diabetes mellitus (DM) has a complex relationship with pancreatic cancer. This study examines the impact of preoperative DM, both recent-onset and pre-existing, on long-term outcomes following pancreatoduodenectomy (PD) for pancreatic ductal adenocarcinoma (PDAC). METHODS: Data were extracted from the Recurrence After Whipple's (RAW) study, a multi-centre cohort of PD for pancreatic head malignancy (2012-2015). Recurrence and five-year survival rates of patients with DM were compared to those without, and subgroup analysis performed to compare patients with recent-onset DM (less than one year) to patients with established DM. RESULTS: Out of 758 patients included, 187 (24.7%) had DM, of whom, 47 of the 187 (25.1%) had recent-onset DM. There was no difference in the rate of postoperative pancreatic fistula (DM: 5.9% vs no DM 9.8%; p = 0.11), five-year survival (DM: 24.1% vs no DM: 22.9%; p = 0.77) or five-year recurrence (DM: 71.7% vs no DM: 67.4%; p = 0.32). There was also no difference between patients with recent-onset DM and patients with established DM in postoperative outcomes, recurrence, or survival. CONCLUSION: We found no difference in five-year recurrence and survival between diabetic patients and those without diabetes. Patients with pre-existing DM should be evaluated for PD on a comparable basis to non-diabetic patients.

Meta-analysis and trial sequential analysis of pancreatic stump closure using a hand-sewn or stapler technique in distal pancreatectomy.

This study aimed to compare outcomes of hand-sewn and stapler closure techniques of pancreatic stump in patients undergoing distal pancreatectomy (DP). Impact of stapler closure reinforcement using mesh on outcomes was also evaluated. Literature search was carried out using multiple data sources to identify studies that compared hand-sewn and stapler closure techniques in management of pancreatic stump following DP. Odds ratio (OR) was determined for clinically relevant postoperative pancreatic fistula (POPF) via random-effects modelling. Subsequently, trial sequential analysis was performed. Thirty-two studies with a total of 4,022 patients undergoing DP with hand-sewn (n = 1,184) or stapler (n = 2,838) closure technique of pancreatic stump were analyzed. Hand-sewn closure significantly increased the risk of clinically relevant POPF compared to stapler closure (OR: 1.56, p = 0.02). When stapler closure was considered, staple line reinforcement significantly reduced formation of such POPF (OR: 0.54, p = 0.002). When only randomized controlled trials were considered, there was no significant difference in clinically relevant POPF between hand-sewn and stapler closure techniques (OR: 1.20, p = 0.64) or between reinforced and standard stapler closure techniques (OR: 0.50, p = 0.08). When observational studies were considered, hand-sewn closure was associated with a significantly higher rate of clinically relevant POPF compared to stapler closure (OR: 1.59, p = 0.03). Moreover, when stapler closure was considered, staple line reinforcement significantly reduced formation of such POPF (OR: 0.55, p = 0.02). Trial sequential analysis detected risk of type 2 error. In conclusion, reinforced stapler closure in DP may reduce risk of clinically relevant POPF compared to hand-sewn closure or stapler closure without reinforcement. Future randomized research is needed to provide stronger evidence.

Do some patients receive unnecessary parenteral nutrition after pancreatoduodenectomy? Results from an international multicentre study.

Backgrounds/Aims: After pancreatoduodenectomy (PD), an early oral diet is recommended; however, the postoperative nutritional management of PD patients is known to be highly variable, with some centers still routinely providing parenteral nutrition (PN). Some patients who receive PN experience clinically significant complications, underscoring its judicious use. Using a large cohort, this study aimed to determine the proportion of PD patients who received postoperative nutritional support (NS), describe the nature of this support, and investigate whether receiving PN correlated with adverse perioperative outcomes. Methods: Data were extracted from the Recurrence After Whipple's study, a retrospective multicenter study of PD outcomes. Results: In total, 1,323 patients (89%) had data on their postoperative NS status available. Of these, 45% received postoperative NS, which was "enteral only," "parenteral only," and "enteral and parenteral" in 44%, 35%, and 21% of cases, respectively. Body mass index < 18.5 kg/m2 (p = 0.03), absence of preoperative biliary stenting (p = 0.009), and serum albumin < 36 g/L (p = 0.009) all correlated with receiving postoperative NS. Among those who did not develop a serious postoperative complication, i.e., those who had a relatively uneventful recovery, 20% received PN. Conclusions: A considerable number of patients who had an uneventful recovery received PN. PN is not without risk, and should be reserved for those who are unable to take an oral diet. PD patients should undergo pre- and postoperative assessment by nutrition professionals to ensure they are managed appropriately, and to optimize perioperative outcomes.

Postoperative complications after pancreatoduodenectomy for malignancy: results from the Recurrence After Whipple's (RAW) study.

BACKGROUND: Pancreatoduodenectomy (PD) is associated with significant postoperative morbidity. Surgeons should have a sound understanding of the potential complications for consenting and benchmarking purposes. Furthermore, preoperative identification of high-risk patients can guide patient selection and potentially allow for targeted prehabilitation and/or individualized treatment regimens. Using a large multicentre cohort, this study aimed to calculate the incidence of all PD complications and identify risk factors. METHOD: Data were extracted from the Recurrence After Whipple's (RAW) study, a retrospective cohort study of PD outcomes (29 centres from 8 countries, 2012-2015). The incidence and severity of all complications was recorded and potential risk factors for morbidity, major morbidity (Clavien-Dindo grade > IIIa), postoperative pancreatic fistula (POPF), post-pancreatectomy haemorrhage (PPH) and 90-day mortality were investigated. RESULTS: Among the 1348 included patients, overall morbidity, major morbidity, POPF, PPH and perioperative death affected 53 per cent (n = 720), 17 per cent (n = 228), 8 per cent (n = 108), 6 per cent (n = 84) and 4 per cent (n = 53), respectively. Following multivariable tests, a high BMI (P = 0.007), an ASA grade > II (P < 0.0001) and a classic Whipple approach (P = 0.005) were all associated with increased overall morbidity. In addition, ASA grade > II patients were at increased risk of major morbidity (P < 0.0001), and a raised BMI correlated with a greater risk of POPF (P = 0.001). CONCLUSION: In this multicentre study of PD outcomes, an ASA grade > II was a risk factor for major morbidity and a high BMI was a risk factor for POPF. Patients who are preoperatively identified to be high risk may benefit from targeted prehabilitation or individualized treatment regimens.

Does an extensive diagnostic workup for upfront resectable pancreatic cancer result in a delay which affects survival? Results from an international multicentre study.

Backgrounds/Aims: Pancreatoduodenectomy (PD) is recommended in fit patients with a carcinoma (PDAC) of the pancreatic head, and a delayed resection may affect survival. This study aimed to correlate the time from staging to PD with long-term survival, and study the impact of preoperative investigations (if any) on the timing of surgery. Methods: Data were extracted from the Recurrence After Whipple's (RAW) study, a multicentre retrospective study of PD outcomes. Only PDAC patients who underwent an upfront resection were included. Patients who received neoadjuvant chemo-/radiotherapy were excluded. Group A (PD within 28 days of most recent preoperative computed tomography [CT]) was compared to group B (> 28 days). Results: A total of 595 patents were included. Compared to group A (median CT-PD time: 12.5 days, interquartile range: 6-21), group B (49 days, 39-64.5) had similar one-year survival (73% vs. 75%, p = 0.6), five-year survival (23% vs. 21%, p = 0.6) and median time-todeath (17 vs. 18 months, p = 0.8). Staging laparoscopy (43 vs. 29.5 days, p = 0.009) and preoperative biliary stenting (39 vs. 20 days, p < 0.001) were associated with a delay to PD, but magnetic resonance imaging (32 vs. 32 days, p = 0.5), positron emission tomography (40 vs. 31 days, p > 0.99) and endoscopic ultrasonography (28 vs. 32 days, p > 0.99) were not. Conclusions: Although a treatment delay may give rise to patient anxiety, our findings would suggest this does not correlate with worse survival. A delay may be necessary to obtain further information and minimize the number of PD patients diagnosed with early disease recurrence.

Serious complications of pancreatoduodenectomy correlate with lower rates of adjuvant chemotherapy: Results from the recurrence after Whipple's (RAW) study.

INTRODUCTION: Adjuvant chemotherapy (AC) can prolong overall survival (OS) after pancreatoduodenectomy (PD) for pancreatic ductal adenocarcinoma (PDAC). However, fitness for AC may be influenced by postoperative recovery. We aimed to investigate if serious (Clavien-Dindo grade ≥ IIIa) postoperative complications affected AC rates, disease recurrence and OS. MATERIALS AND METHODS: Data were extracted from the Recurrence After Whipple's (RAW) study (n = 1484), a retrospective study of PD outcomes (29 centres from eight countries). Patients who died within 90-days of PD were excluded. The Kaplan-Meier method was used to compare OS in those receiving or not receiving AC, and those with and without serious postoperative complications. The groups were then compared using univariable and multivariable tests. RESULTS: Patients who commenced AC (vs no AC) had improved OS (median difference: (MD): 201 days), as did those who completed their planned course of AC (MD: 291 days, p < 0.0001). Those who commenced AC were younger (mean difference: 2.7 years, p = 0.0002), more often (preoperative) American Society of Anesthesiologists (ASA) grade I-II (74% vs 63%, p = 0.004) and had less often experienced a serious postoperative complication (10% vs 18%, p = 0.002). Patients who developed a serious postoperative complication were less often ASA grade I-II (52% vs 73%, p = 0.0004) and less often commenced AC (58% vs 74%, p = 0.002). CONCLUSION: In our multicentre study of PD outcomes, PDAC patients who received AC had improved OS, and those who experienced a serious postoperative complication commenced AC less frequently. Selected high-risk patients may benefit from targeted preoperative optimisation and/or neoadjuvant chemotherapy.

Predictors of actual five-year survival and recurrence after pancreatoduodenectomy for ampullary adenocarcinoma: results from an international multicentre retrospective cohort study.

BACKGROUND: Pancreatoduodenectomy (PD) is recommended in fit patients with a resectable ampullary adenocarcinoma (AA). We aimed to identify predictors of five-year recurrence/survival. METHODS: Data were extracted from the Recurrence After Whipple's (RAW) study, a multicentre retrospective study of PD patients with a confirmed head of pancreas or periampullary malignancy (June 1st, 2012-May 31st, 2015). Patients with AA who developed recurrence/died within five-years were compared to those who did not. RESULTS: 394 patients were included and actual five-year survival was 54%. Recurrence affected 45% and the median time-to-recurrence was 14 months. Local only, local and distant, and distant only recurrence affected 34, 41 and 94 patients, respectively (site unknown: 7). Among those with recurrence, the most common sites were the liver (32%), local lymph nodes (14%) and lung/pleura (13%). Following multivariable tests, number of resected nodes, histological T stage > II, lymphatic invasion, perineural invasion (PNI), peripancreatic fat invasion (PPFI) and ≥1 positive resection margin correlated with increased recurrence and reduced survival. Furthermore, ≥1 positive margin, PPFI and PNI were all associated with reduced time-to-recurrence. CONCLUSIONS: This multicentre retrospective study of PD outcomes identified numerous histopathological predictors of AA recurrence. Patients with these high-risk features might benefit from adjuvant therapy.

Short and long-term outcomes of minimally invasive central pancreatectomy: Comparison with minimally invasive spleen-preserving subtotal distal pancreatectomy.

BACKGROUND: Central pancreatectomy(CP) is more complex surgery and higher complication rate than distal pancreatectomy(DP). However, with the development of minimally invasive surgery, CP has become a safer surgery technique. In this study, we compare minimally invasive CP(MI-CP) and Minimally invasive spleen-preserving subtotal DP(MI-SpSTDP) to figure out the short-term and long-term outcomes of MI-CP. METHODS: From March 2007 to June 2020, 36 cases of MI-SpSTDP and 23 cases of MI-CP were performed for benign and borderline malignant pancreatic tumors in Severance hospital. The occurrence of postoperative pancreatic fistula(POPF) and Clavian-Dindo classification grade 3 or more in the two group was investigated, and the Controlling nutritional status scores(CONUT score) before and 1-year after surgery were compared to determine the long-term outcomes of exocrine function. RESULTS: There was no difference in postoperative complications including POPF between the two groups(17.4% vs 5.1%, p = 0.294). And there were no statistical differences in either the MI-CP group (0.74 ± 0.75 vs. 0.78 ± 0.99, p = 0.803) or the MI-SpSTDP group (0.86 ± 0.83 to 0.61 ± 0.59, p = 0.071). CONCLUSIONS: MI-CP had longer operation time and hospital stay and is safe and effective in preserving endocrine and exocrine functions in treatment of benign or borderline tumors located at the neck or proximal body of the pancreas.

Primary hepatic leiomyosarcoma: A case report and literature review.

BACKGROUND: Primary hepatic leiomyosarcoma (PHL) is a rare tumor with a very low incidence of about 0.2%. CASE SUMMARY: A 48-year-old diabetic, hypertensive, and morbidly obese female patient presented with a history of abdominal pain and weight loss for 2 mo. She had no history of fever, jaundice, or other liver disease(s). Clinical examination revealed a palpable mass in the epigastrium. Imaging evaluation with a contrast-enhanced computed tomography (CT) scan of the abdomen and pelvis revealed an ill-defined enhancing hyper vascular hepatic mass of 9.9 cm × 7.8 cm occupying the left hepatic lobe with evidence of central necrosis, compression effect on the left hepatic vein, and partial wash-out on delayed images. On further workup, the maximum standardized uptake value on positron emission computed tomography scan was 6.4, which was suggestive of malignancy. The remaining part of the liver was normal without any evidence of cirrhosis. Ultrasound-guided biopsy of the mass showed smooth muscle neoplasm suggestive of leiomyosarcoma. After optimization for co-morbidities, an extended left hepatectomy was planned in a multidisciplinary team meeting. On intraoperative ultrasound, the left hepatic lobe was entirely replaced by a large tumor extending to the caudate lobe with a compression effect on the middle and left hepatic veins. Final histopathology showed nodular and whorled white tumor comprised of spindled/fascicular cells with moderate to severe pleomorphism and focal necrosis. The mitotic index was greater than 20 mitoses per 10 high-power fields. The resection margins were free of tumor. Immunohistochemistry (IHC) depicted a desmin-positive/ caldesmon-negative/discovered on gastrointestinal stromal tumor 1-negative/ cluster of differentiation 117-negative profile, confirming the definitive diagnosis as PHL. CONCLUSION: This case report highlights the rare malignant mesenchymal hepatic tumor. To confirm PHL diagnosis, one requires peculiar histopathological findings with ancillary IHC confirmation. Management options include adequate/complete surgical resection followed by chemotherapy and/or radiotherapy.

Liver Resection and role of Extended Histology (LiREcH study) in patients with multifocal colorectal cancer liver metastases.

BACKGROUND: The aim of this study is to assess the correlation between the margin status on the specimen side (Rs) and that from the patient side (base of resection) (Rp) and the influence of positive margins (R1s and R1p) on cancer related outcomes in patients with colorectal liver metastases (CRLM). METHODS: In this prospective study, patients undergoing non-anatomical resection (NAR) of multifocal CRLM, with suspected close resection margins were included. The primary outcome evaluated was the correlation of Rs and Rp. RESULTS: Twenty-three patients had 89 NARs, and CUSA samples from the base of 36 specimens were analysed. Among 36 specimens where extended histology (EH) was performed, margin status on the specimen side (Rs) was positive in 69.4% (25/36), whereas on the patient side, the margin (Rp) was positive in only 8.3% (3/36) of specimens. On univariate analysis, there was no significant difference in the site-specific recurrence at previous resection with regards to Rs positivity (P = 0.56) and Rp positivity (P = 0.48). CONCLUSION: There is a poor correlation between Rs and Rp and the local recurrence rates in the liver. These results might further support that tumour biology is more relevant than the margin status in patients with multifocal CRLM.

Is it necessary to measure hepatic venous pressure gradient before liver resection in cirrhotic patients? A single center audit.

OBJECTIVE: To determine whether routine preoperative hepatic venous pressure gradient measurements are necessary in child's-A cirrhotic patients undergoing liver resection for hepatocellular carcinoma, and to assess immediate post-operative liver dysfunction and 30-day mortality in such cases. METHODS: The 3-year audit was done at Shuakat Khanum Memorial Cancer Hospital and Research Centre, Lahore, Pakistan, and comprised data from January 1, 2015, to December 31, 2017, of all Child's class "A" patients with hepatocellular carcinoma without any clinical signs of portal hypertension who had preoperative hepatic venous pressure gradient measurements done. A proforma was used to collect the required data from patient files. Data was analysed using SPSS 21. RESULTS: Of the 20 patients, 11(55%) were males. The overall mean age was 60.6±7.4 years. Only 2(10%) patients had raised hepatic venous pressure gradient. Of the total, 14(70%) patients underwent surgery. Mean duration of surgery was 222±82.5 minutes and mean hospital stay was 6.8±3.2 days. None of the patients had deranged prothrombin-time or bilirubin on postoperative day 5. CONCLUSIONS: The incidence of subclinical portal hypertension was very low. Hepatic venous pressure gradient measurement can be avoided in early stage hepatocellular carcinoma for child's A cirrhotic patients undergoing liver resection.

Role of artificial intelligence in hepatobiliary and pancreatic surgery.

Over the past decade, enhanced preoperative imaging and visualization, improved delineation of the complex anatomical structures of the liver and pancreas, and intra-operative technological advances have helped deliver the liver and pancreatic surgery with increased safety and better postoperative outcomes. Artificial intelligence (AI) has a major role to play in 3D visualization, virtual simulation, augmented reality that helps in the training of surgeons and the future delivery of conventional, laparoscopic, and robotic hepatobiliary and pancreatic (HPB) surgery; artificial neural networks and machine learning has the potential to revolutionize individualized patient care during the preoperative imaging, and postoperative surveillance. In this paper, we reviewed the existing evidence and outlined the potential for applying AI in the perioperative care of patients undergoing HPB surgery.

Primary hepatic neuroendocrine tumour: A rare entity - multimodal approach for diagnosis and management.

Neuroendocrine tumours (NETs) of the liver are generally metastatic lesions from broncho-pulmonary or gastrointestinal primary lesions. Liver is an unusual primary site for a NET with only 150 reported cases in literature. We encountered two cases of primary hepatic NET (PHNET) at the Shaukat Khanum Memorial Cancer Hospital, Lahore. Both the patients had abdominal pain and hepatomegaly. Imaging revealed a large mass in the right lobe of the liver in both the cases. The tru-cut biopsy showed neuroendocrine tumour. Extensive workup to look for primary lesion elsewhere in the body turned out to be negative. One patient received neo-adjuvant chemotherapy along with right main portal vein embolisation. Once adequate future liver remnant was achieved, the patient underwent right hepatic trisectionectomy. In the other patient, anticipated future liver remnant was sufficient and underwent surgery without portal vein embolization. No immediate postoperative complication was observed, and both the patients were followed for more than one year.

Pancreaticogastrostomy: A Safe Option in Pancreaticoduodenectomy for Pancreatic Head and Periampullary Neoplasms.

OBJECTIVE: To determine the safety of pancreaticogastrostomy in pancreaticoduodenectomy in patients with periampullary and pancreatic head neoplasms in terms of surgical technique, pancreatic fistula rate, 30 days mortality and three years survival. STUDY DESIGN: Cohort study. PLACE AND DURATION OF STUDY: Shaukat Khanum Memorial Cancer Hospital and Research Centre, Lahore, Pakistan, from October 2014 to September 2017. METHODOLOGY: Patients undergoing pancreaticoduodenectomy for pancreatic head and periampullary tumors were included. Patients having metastatic disease or involvement of celiac artery, hepatic artery or superior mesenteric artery on preoperative scans, complete encasement of portal vein and superior mesenteric vein (SMV) were excluded. Patients' characteristics including the demographics, surgical technique, postoperative pancreatic fistula, 30 days mortality and three years survival were recorded. Mean ± standard deviation was used for continuous variables while frequencies and percentages were used for categorical variables. Kaplan-Meier method was used to estimate survival as a function of time, and survival differences were analysed by either Log-Rank test or Tarone-Ware test. Statistical significance was defined as a two-tailed p-value 0.05. RESULTS: One hundred and one patients underwent pancreaticoduodenectomy. Fifty-eight (57.4%) were males and 43 (42.4%) were females (n=43). Mean age was 51.5 ±14.17 years. The commonly found tumor was periampullary adenocarcinoma which was present in 49.5% (n=50) patients followed by pancreatic head adenocarcinoma which was present in 32.7% (n=33) patients and 17.8% (n=18) patients had other tumors. Most common pathological T-stage was T3 present in 47.5% (n=48) patients, followed by T2 found in 36.6% (n=37) patients and T1 stage was present in 15.8% (n=16) patients. 57.4% (n=58) patients had node positive disease. Pancreaticogastrostomy was done in 87.13% (n=88) patients, while pancreaticojejunostomy was done in 12.87% (n=13) patients. Recurrent disease was noticed in 11.9% (n=12) patients. Mean survival of pancreatic head adenocarcinoma was 787.04 ±81.89 days, which was comparatively less than periampullary adenocarcinoma, i.e. 983.10 ±52.27 days (p=0.08). Overall mean survival was 924 ±41.3 days. CONCLUSION: Patients with periampullary tumors had a better outcome than pancreatic head tumors in this series. Pancreaticogastrostomy can be a safe alternative to pancreaticojejunostomy, especially in patients having non-dilated pancreatic duct and soft pancreas.

Vascular Resection and Reconstruction in Pancreatic Tumours.

Option for borderline resectable pancreatic cancer is pancreaticoduodenectomy (PD) with vascular resection and reconstruction. We would like to share our experience of vascular reconstruction. First patient was a 51-year male with pancreatic head carcinoma, involving posterior wall of portal vein (PV) and replacing right hepatic artery (RHA). Along with PD, he underwent PV and RHA resection and reconstruction. Second case was a 33-year female who had distal pancreatic cyst and PV-splenic vein junction involved by tumor. Distal pancreatectomy+splenectomy and PV primary resection-reconstruction was done. Third case was a 72-year male with pancreatic neck adenocarcinoma involving PV-SMV junction. Subtotal pancreatecomy+splenectomy was done along with PV-reconstruction via splenic vein patch graft. Fourth case was a 77-year male with cystic pancreatic head mass involving PV. PD with resection and reconstruction of portal vein was done. Fifth case was a 35-year female with peri-ampullary tumor replacing RHA, coursing through the pancreatic parenchyma. So RHA was resected and reconstructed in an end-to-end fashion. Vascular resection-reconstruction can be done in borderline pancreatic cancer patients, and a considerable survival benefit can be achieved.

Role of Percutaneous Cholecystostomy Tube Placement in the Management of Acute Calculus Cholecystitis in High Risk Patients.

OBJECTIVE: To evaluate the utility of percutaneous cholecystostomy tube in patients with acute calculus cholecystitis, who are considered unfit for immediate surgery. STUDY DESIGN: Observational study. PLACE AND DURATION OF STUDY: The Aga Khan University Hospital, Karachi, Pakistan, from January 2010 to December 2014. METHODOLOGY: All adult patients who underwent percutaneous cholecystostomy tube placement for acute calculous cholecystitis were included. These patients were divided into two groups for further analysis. Group-I consisted those who had interval cholecystectomy after tube placement and Group-II were those who had no further treatment. Recurrence of symptoms, infections and operation related complications were noted. RESULTS: Sixty-five patients met the inclusion criteria. Mean age was 58.5 years. Forty-four patients (67.7%) were males. Forty-three patients underwent interval cholecystectomy (Group-I) and 22 did not (Group-II). Mean operative time was 134.9 +57.8 minutes. Five (11.6%) patients were converted to open cholecystectomy, two (4.6%) developed CBD injury, and seven (16.2%) developed surgical site infection. In Group-II, three patients (13.6%) developed recurrence of symptoms and 19 (86.4%) remained symptom-free. Catheter related problems occurred in four (18%) patients. Mean follow-up was 19 +8 months. CONCLUSION: Percutaneous cholecystostomy is a good alternative for patients unfit to undergo immediate surgery. Recurrence of symptoms after tube removal are in a low range; therefore, it can be considered a definitive management for high risk patients. Laparoscopic cholecystectomy after tube placement becomes technically challenging.

Pancreaticogastrostomy - an alternate for dealing with pancreatic remnant after pancreaticoduodenectomy - experience from a tertiary care center of Pakistan.

Whipple's pancreaticoduodenectomy has been refined over the years to be a safe operation though the morbidity rate still remains high (30-50%). Pancreatic fistula is the most important cause of mortality following pancreaticoduodenectomy. To prevent it, surgeons have used two anastomotic techniques: pancreaticojejunostomy and pancreaticogastrostomy. Recent studies found that pancreaticogastrostomy is associated with fewer overall complications than pancreaticojejunostomy. This is a retrospective review of patients who underwent Whipple's at Aga Khan University Hospital and had pancreaticogastrostomy as a preferred anastomosis for pancreatic stump. Forty four patients met the inclusion criteria, 27 were male. No patient developed post-operative pancreatic fistula, 13 (31%) patients had morbidities including delayed gastric emptying 4(9.1%), wound infection 3(6.8%), and haemorrhage 6(13.6%). Mortality is reported to be 5 (11.9%). Pancreaticogastrostomy seems to be a safe alternative and easier anastomosis to perform with less post-operative morbidity and mortality. Further data should become available with greater numbers in the future. .