National guidelines for the diagnosis and treatment of hilar cholangiocarcinoma

A consensus meeting of national experts from all major national hepatobiliary centres in the country was held on May 26, 2023, at the Pakistan Kidney and Liver Institute & Research Centre (PKLI & RC) after initial consultations with the experts. The Pakistan Society for the Study of Liver Diseases (PSSLD) and PKLI & RC jointly organised this meeting. This effort was based on a comprehensive literature review to establish national practice guidelines for hilar cholangiocarcinoma (hCCA). The consensus was that hCCA is a complex disease and requires a multidisciplinary team approach to best manage these patients. This coordinated effort can minimise delays and give patients a chance for curative treatment and effective palliation. The diagnostic and staging workup includes high-quality computed tomography, magnetic resonance imaging, and magnetic resonance cholangiopancreatography. Brush cytology or biopsy utilizing endoscopic retrograde cholangiopancreatography is a mainstay for diagnosis. However, histopathologic confirmation is not always required before resection. Endoscopic ultrasound with fine needle aspiration of regional lymph nodes and positron emission tomography scan are valuable adjuncts for staging. The only curative treatment is the surgical resection of the biliary tree based on the Bismuth-Corlette classification. Selected patients with unresectable hCCA can be considered for liver transplantation. Adjuvant chemotherapy should be offered to patients with a high risk of recurrence. The use of preoperative biliary drainage and the need for portal vein embolisation should be based on local multidisciplinary discussions. Patients with acute cholangitis can be drained with endoscopic or percutaneous biliary drainage. Palliative chemotherapy with cisplatin and gemcitabine has shown improved survival in patients with irresectable and recurrent hCCA.

Outcomes of hepaticojejunostomy for post-cholecystectomy bile duct injury

OBJECTIVES

Long-term results of hepaticojejunostomy (HJ) for complex bile duct injury (BDI) remain under-reported. The objective of this study was to assess short-term and long-term outcomes of HJ for post-cholecystectomy BDI.

METHODS

This was a retrospective cohort study and included patients who underwent Roux-en-Y HJ for BDI (n = 87). Short-term (90-day) and long-term morbidity and mortality were assessed.

RESULTS

At presentation, 42 (48.2%) patients had E3 or E4 BDI, 27 (31%) patients had vascular injury, and liver resection was performed in 12 (13.7%) patients. The 90-day morbidity was 51.7% (n = 45), and the 90-day mortality was 2.3% (n = 2). The long-term mortality was 3.4% (n = 3). The 10-year estimated stricture-free survival was 95%. The 10-year estimated overall survival rate was 100% in patients who underwent major hepatectomy and 91% in patients who did not. The 10-year estimated overall survival rate was 100% in patients with vasculobiliary injury and was not reached in patients without vascular injury.

CONCLUSIONS

Vascular injury with proximal BDI is not uncommon. Excellent long-term outcomes might be achieved with Roux-en-Y HJ for BDI with vascular injury and in patients requiring liver resection.

Survival after extended resections for gallbladder cancer

Backgrounds/Aims

Locally advanced gallbladder cancer (GBC) is associated with survival limited to a few months. Extended resections (ER) are occasionally performed in this group and outcomes remain inconclusive. This study assessed outcomes after ER for locally advanced GBC.

Methods

Patients who underwent ER for GBC between 2011 and 2020 were reviewed. ER was defined as a major hepatectomy alone (n = 9), a pancreaticoduodenectomy (PD) with or without minor hepatectomy (n = 3), a major hepatectomy with PD (HPD) (n = 3) or vascular resection and reconstruction (n = 4). We assessed 30-day morbidity, mortality, and 2-year overall survival (OS).

Results

Among 19 patients, negative margins were achieved in 14 (73.6%). The 30-day mortality was 1/9 (11.1%) for a major hepatectomy, 0/3 (0%) for a minor HPD, 2/3 (66.7%) for a major HPD, and 1/4 (25.0%) for vascular resection. All short term survivors (< 6 months) (n=8) had preoperative jaundice and 6/8 (75.0%) underwent a major HPD or vascular resection. There were five (26.3%) long term survivors. The median OS in patients with and without preoperative jaundice was 4.1 months (0.7-11.1 months) and 13.7 months (12-30.4 months), respectively (p = 0.009) (2-year OS = 7% vs. 75%; p = 0.008). The median OS in patients who underwent a major hepatectomy alone or a minor HPD was 11.3 months (6.8-17.3 months) versus 1.4 months (0.3-4.1 months) (p = 0.02) in patients who underwent major HPD or vascular resection (2 year OS = 33% vs. not reached) (p = 0.010) respectively.

Conclusions

In selected patients with GBC, when ER is limited to a major hepatectomy alone, or a minor HPD, acceptable survival can be achieved.

Long term outcomes after pancreaticoduodenectomy: A single center experience from Pakistan

OBJECTIVE

To report long-term outcomes after pancreaticoduodenectomy from a single centre.

METHODS

The retrospective study was conducted at Shifa International Hospital, Islamabad and comprised pancreaticoduodenectomy procedures performed by four surgeons at a single centre from January 2011 to June 2019. Outcome was assessed on the basis of morbidity, in-hospital mortality and survival. Data was analysed using SPSS 20.

RESULTS

Of the 155 patients, 103(66.5%) were males. The overall mean age was 56.8±13.5 years (range: 8-85 years). Overall morbidity was 84 (54.2%). Multivisceral and venous resections were performed in 22(14.2%) and 20(12.9%) patients respectively. Grade B pancreatic fistula was seen in 5(3.2%) patients and grade C in 6(3.8%). In-hospital mortality was 5(3.2%). The difference between the estimated 5-year overall survival for pancreatic and non-pancreatic cancers was non-significant (p=0.2), while the difference in the estimated 3-year overall survival rate was significant (p<0.05).

CONCLUSIONS

With standardisation of operative technique and peri-operative management, low in-hospital mortality and acceptable long-term outcomes were achieved with standard and extended pancreaticoduodenectomy.

Liver transplantation for hepatocellular carcinoma: Improving eligibility without compromising outcomes

Background

In the context of liver transplantation for hepatocellular carcinoma (HCC), traditional transplant criteria appear restrictive. The objective of the current study was to determine risk factors for recurrence and improve transplant eligibility in patients with HCC.

Materials and methods

This was a retrospective study of patients who underwent living donor liver transplant (LDLT) for HCC (n = 219). Largest tumor diameter, tumor number, AFP and neutrophil to lymphocyte ratio were assessed. Multivariate analysis was performed to develop risk scores. The new model was compared with seven previously published transplant criteria using receiver operator curves.

Results

Largest tumor size >3.7 cm [HR:2.6, P = 0.02], and AFP > 600 ng/ml [HR:4.7, P = 0.001] were independent predictors of recurrence. Patients with risk scores of 0, 1–3, 4–6 and 7–9 had recurrence rate of 5.9%, 12.5%, 25% and 58.4% respectively. When compared with Milan criteria, Metro ticket 2.0, AFP model and Samsung criteria; transplant eligibility increased by 31.5%, 22.9%, 8.7%, and 7% respectively. Recurrence rate with the current model was 16/199 (8%) (P < 0.0001) and was comparable with other transplant criteria (6.9–9.1%). On ROC analysis, only Milan criteria (AUC = 0.7, P = 0.001) and the current model (AUC = 0.66, P = 0.01) showed significance for recurrence. All patients with high risk scores within Milan criteria had recurred at 3 years (P = 0.03).

Conclusions

Low AFP can be used to select patients for LDLT outside traditional criteria for HCC, with comparable recurrence rates.

•

There is an unmet need to expand transplant pool for hepatocellular carcinoma.

•

We developed a model, based on tumor size cutoff of 3.7 cm, any tumor number, and AFP cutoff of 600 ng/ml; and compared it with other transplant criteria.

•

There was considerable expansion in transplant pool with comparable outcomes.

Living donor liver transplantation for advanced hepatocellular carcinoma including macrovascular invasion

Background

The indications for liver transplantation (LT) in patients with hepatocellular carcinoma (HCC) continue to evolve. The aim of this study was to report outcomes in patients who underwent living donor liver transplantation (LDLT) for HCC outside traditional criteria including macrovascular invasion (MVI).

Methods

We reviewed outcomes in patients who met the University of California San Francisco (UCSF) criteria (n = 159) and our center-specific criteria (UCSF+) (largest tumor diameter ≤ 10 cm, any tumor number, AFP ≤ 1000 ng/ml) (n = 58). We also assessed outcomes in patients with MVI (n = 27).

Results

The median follow was 28 (10.6–42.7) months. The 5 year overall survival and risk of recurrence (RR) in the UCSF and UCSF + group was 71% vs 69% (P = 0.7) and 13% vs 36% (P = 0.1) respectively. When patients with AFP > 600 ng/ml were excluded from the UCSF + group, RR was 27% (P = 0.3). Among patients with MVI who had downstaging (DS), 4/5(80%) in low-risk group (good response and AFP ≤ 100 ng/ml) and 2/10 (20%) in the high-risk group (poor response or AFP > 100 ng/ml) were alive at the last follow-up. When DS was not feasible, 3/3 (100%) in the low-risk group (AFP ≤ 100 ng/ml + Vp1-2 MVI) and 1/9 (9.1%) in the high-risk group (AFP > 100 or Vp3 MVI) were alive. The 5 year OS in the low-risk MVI group was 85% (P = 0.003).

Conclusion

With inclusion of AFP, response to downstaging and degree of MVI, acceptable survival can be achieved with LDLT for HCC outside traditional criteria.

Supplementary Information

The online version contains supplementary material available at 10.1007/s00432-021-03665-9.

Influence of ABCB1 gene polymorphism on concentration to dose ratio and adverse effects of tacrolimus in Pakistani liver transplant recipients

Objective

To evaluate the possible association of ABCB1 single nucleotide polymorphism (SNPs) of the ABCB1 gene with tacrolimus dosages, concentration-to-dose ratios (CDR) and adverse effects in Pakistani liver transplant recipients.

Methods

This observational study was conducted at Shifa International Hospital, Shifa Tameer-e-Millat University, Islamabad and Basic Medical Sciences Institute, Karachi from September 2016 to July 2020. Eighty-one liver transplant recipients were included. Demographics, clinical data, tacrolimus trough levels and doses were monitored. Electrochemiluminescence immunoassay (ECLIA) was used to measure tacrolimus trough levels. Transplant recipients were genotyped for three ABCB1 SNPs (rs1045642, rs2032582 and rs1128503). Acute cellular rejection (ACR), sepsis and other adverse events were monitored.

Results

ABCB1 rs1045642 CC genotype showed lower tacrolimus CDR as compared to CT and TT genotype in the first week of the post-transplantation period (p=0.02). There was a significant association of polymorphisms in rs1045642, rs2032582 and rs1128503 with psychosis, sepsis and ACR respectively.

Conclusion

Identification of ABCB1 rs1045642 polymorphism may shorten the time to achieve optimum levels of tacrolimus during dose titration. ABCB1 polymorphism rs1045642, rs2032582 and rs1128503 may predict adverse effects in liver transplant recipients receiving tacrolimus.

Living Donor Liver Transplantation for Hepatocellular Carcinoma: Appraisal of the United Network for Organ Sharing Modified TNM Staging

Background: In deceased donor liver transplantation (DDLT), transplant eligibility for T3–T4 HCC requires successful downstaging (DS). Living donor liver transplantation (LDLT) can be considered selectively in these patients without DS, but its role is not defined. The objective of the current study was to assess outcomes of LDLT for HCC based on UNOS staging with no prior DS.

Materials and Methods: Patients who underwent LDLT for HCC (n = 262) were staged based on modified UNOS TNM staging. High-risk factors were identified and 5-year recurrence free survival was compared in patients with T2–T4 HCC.

Results: Median follow-up was 30.2 (16.4–46.3) months. Recurrence rate in T1, T2, T3, T4a, and T4b HCC was 0, 10.1, 16.1, 5.9, and 37.5% (P = 0.02), respectively. On multivariate analysis, AFP > 600 ng/mL [HR:11.7, P < 0.001] and T4b HCC (macrovascular invasion) [HR = 5.6, P = 0.03] were predictors of recurrence. After exclusion of AFP > 600 ng/mL, 5-year RFS for T2, T3, and T4a HCC was 94, 86, and 92% (P = 0.3). Rate of microvascular invasion between T2 and T3 HCC was 24.3 vs. 53.6% (P = 0.005), and between T2 and T4a HCC was 24.3 vs. 36.7% (P = 0.2). Overall, 26 (19.4%) patients were overstaged and 23 (17.1%) were understaged on preoperative imaging. The 5-year RFS in patients with identical preoperative and histopathological staging was 94, 87, and 94% (P = 0.6).

Conclusion: LDLT without prior DS leads to comparable survival for UNOS T2, T3, and T4a HCC as long as AFP is < 600 ng/mL.

Multivisceral central pancreatectomy for pancreatic neuroendocrine tumor: A case report on a novel surgical technique

INTRODUCTION

Central pancreatectomy (CP) is considered a viable alternative to subtotal distal pancreatectomy, for lesions involving the neck or proximal pancreatic body. Multivisceral central pancreatectomy (MVCP) for locally advanced tumors of the pancreatic body remains unreported.

PRESENTATION OF CASE

We hereby report a case of locally advanced pancreatic neuroendocrine tumor (NET) with gastric involvement. The patient underwent successful central pancreatectomy with subtotal gastrectomy for locally advanced NET of the pancreas. In the follow up period, relevant complications like pancreatic insufficiency or pancreatic fistula were not encountered. The patient is doing well more than ten months after resection.

DISCUSSION

A MVCP can be considered in patients with limited pancreatic involvement, as long as sufficient pancreatic parenchyma can be preserved. Additional organ involvement mandating resection should not be considered a contra indication to this procedure. With careful surgical planning and meticulous technique, risk of post operative complications after MVCP can be minimized with added benefit of long term endocrine and exocrine integrity.

CONCLUSIONS

CP is a viable alternative and can be performed with adjacent organ resection, with acceptable post operative outcomes.

Preoperative Endoscopic Biliary Stenting Before Pancreaticoduodenectomy: Does Timing Matter?

Background. The role of preoperative biliary stenting (PBS) before pancreaticoduodenectomy (PD) in patients with obstructive jaundice is debatable. The objective of the current study was to assess PD outcomes after upfront surgery or PBS and determine the impact of stent to surgery duration on PD outcomes. Methods. We reviewed patients who underwent PD between 2011 and 2019. Patients were grouped based on whether they underwent upfront surgery (n = 67) or PBS (n = 66). We further assessed outcomes based on stent to surgery duration. Results. There was no significant difference in 30-day mortality (3% vs. 2.9%, P = 1), 90-day mortality (7.5% vs. 4.4%, P = .4), and Grade B-C pancreatic fistula rates (7.5% vs. 4.4%, P = .4) in the PBS and upfront surgery groups, respectively. A significant increase in wound infections (22.7% vs. 7.4%, P = .01) and readmissions (10.6% vs. 0, P = .006) was seen in the PBS group. The highest rate of wound infection was seen when stent to surgery duration was 4-6 weeks (41.6%). The wound infection rates in the upfront surgery group, high-risk PBS group (4-6 weeks), and low-risk PBS group were 5/67(7.4%), 5/12(41.6%), and 7/36(19.4%), respectively (P = .008). Conclusions. PBS increases postoperative wound infections when compared with upfront surgery. Patients operated between 4 and 6 weeks after stenting have the highest rate of wound infection.

In-hospital Mortality after Liver Transplantation due to COVID-19

Null.

When to call it off: defining transplant candidacy limits in liver donor liver transplantation for hepatocellular carcinoma

Background

Living donor liver transplantation (LDLT) is an acceptable treatment option for hepatocellular carcinoma (HCC). Traditional transplant criteria aim at best utilization of donor organs with low risk of post transplant recurrence. In LDLT, long term recurrence free survival (RFS) of 50% is considered acceptable. The objective of the current study was to determine preoperative factors associated with high recurrence rates in LDLT.

Methods

Between April 2012 and December 2019, 898 LDLTs were performed at our center. Out of these, 242 were confirmed to have HCC on explant histopathology. We looked at preoperative factors associated with ≤ 50%RFS at 4 years. For survival analysis, Kaplan Meier curves were used and Cox regression analysis was used to identify independent predictors of recurrence.

Results

Median AFP was 14.4(0.7–11,326.7) ng/ml. Median tumor size was 2.8(range = 0.1–11) cm and tumor number was 2(range = 1–15). On multivariate analysis, AFP > 600 ng/ml [HR:6, CI: 1.9–18.4, P = 0.002] and microvascular invasion (MVI) [HR:5.8, CI: 2.5–13.4, P <  0.001] were independent predictors of 4 year RFS ≤ 50%. When AFP was > 600 ng/ml, MVI was seen in 88.9% tumors with poor grade and 75% of tumors outside University of California San Francisco criteria. Estimated 4 year RFS was 78% for the entire cohort. When AFP was < 600 ng/ml, 4 year RFS for well-moderate and poor grade tumors was 88 and 73%. With AFP > 600 ng/ml, RFS was 53% and 0 with well-moderate and poor grade tumors respectively (P <  0.001).

Conclusion

Patients with AFP < 600 ng/ml have acceptable outcomes after LDLT. In patients with AFP > 600 ng/ml, a preoperative biopsy to rule out poor differentiation should be considered for patient selection.

Clinical Efficacy and Safety of Tacrolimus in Pakistani Living Donor Liver Transplant Recipients

OBJECTIVE

To evaluate the association between tacrolimus trough levels and dosage in Pakistani patients undergoing live donor liver transplantation (LDLT), and the efficacy and adverse effects at different tacrolimus trough levels and dosages.

STUDY DESIGN

An observational study.

PLACE AND DURATION OF STUDY

Shifa International Hospital, Shifa Tameer-e-Millat University, Islamabad and Basic Medical Sciences Institute, Karachi, from September 2016 to October 2018.

METHODOLOGY

Sixty liver transplant recipients were included. Demographics, clinical data, tacrolimus trough levels and doses were monitored as per routine protocol. Electrochemiluminescence immunoassay (ECLIA) was used to measure tacrolimus trough levels. Acute cellular rejection (ACR), sepsis and other adverse events were monitored at different tacrolimus trough levels in early post-transplantation period.

RESULTS

Mean age of transplant recipients was 49.1 ± 10.6 years. Mean tacrolimus trough levels were 6.1 ± 2.2 ng/ml and mean dose was 0.94 ± 0.3 mg. Sepsis (27%) psychosis (20%), seizures (10%), and renal insufficiency (13%) were the most common adverse effects. Acute cellular rejection (ACR) was observed in 15% patients. Patients with sepsis had significantly high mean tacrolimus levels of 7.7 ± 2.5 ng/ml versus 5.5 ± 1.9 ng/ml (p=0.001). Mean tacrolimus trough levels in patients with ACR were significantly lower (4.05 ± 1.6 ng/ml vs. 6.43 ± 2.2ng/ml, p=0.003). None of the patients with a single tacrolimus trough level >10 ng/ml experienced ACR.

CONCLUSION

A tacrolimus trough level between 5 to 7.5 ng/ml appears to be safe in Pakistani liver transplant recipients significantly minimising the risk of ACR and other adverse events.

Outcomes after Surgical Resection of Hilar Cholangiocarcinoma

OBJECTIVE

To report long term outcomes after surgical resection of hilar cholangiocarcinoma (hCCA).

STUDY DESIGN

Cohort study.

PLACE AND DURATION OF STUDY

Department of Liver Transplant and Hepatopancreaticobiliary Surgery, Shifa International Hospital, Islamabad, Pakistan, from October 2011 to April 2018.

METHODOLOGY

A prospective review of maintained database of patients who underwent surgical resection for hCCA was performed. A total of 24 patients were included. Outcome was assessed, based upon 90-day morbidity and mortality, 5-year recurrence-free survival (RFS) and overall survival (OS).

RESULTS

Median age was 49 (23-73) years. Male to female ratio was 1.4:1. Median CA 19-9 level was 113 (2-1200) U/ml. Nine patients (37.5%) underwent right hepatectomy, six had right trisectionectomy (25%), three had central hepatectomy (12.5%) and left hepatectomy (12.5%) each, while three (12.5%) had other surgical procedures. In addition, two (8.3%) patients required portal vein resection and reconstruction. Median blood loss was 1350 (100-2000) ml. Median ICU stay was 4 (2-13) days, while hospital stay was 10 (6-32) days. Sixteen (66.7%) patients experienced at least one morbidity within 90 days, while 90-day mortality was 1/24 (4.1%). The overall recurrence rate was 6/18 (33.4%) and mortality was 9/18 (50%). The actuarial 5-year RFS was 60% and OS was 39%.

CONCLUSION

hCCA remains a technically challenging surgical problem. Outcomes comparable to international standards can be achieved in experienced centres.

Utility of Routine Gall Bladder Histopathology after Living Donor Hepatectomy in Liver Transplantation

Intraoperative cholangiogram with cholecystectomy is a routinely performed procedure in living donor liver transplantation (LDLT).The objective of this study was to determine the frequency of gall bladder pathology in healthy living donors and whether routine histopathology can be omitted. This was a retrospective review of 366 donors who underwent donor hepatectomy between 2012 and 2016. Primary outcome of interest was frequency of abnormal histopathology findings in removed gall bladder specimen; and if their distribution was different with respect to gender, age and BMI. Male to female ratio was 2.1:1. Median age was 26 (18-50) years. Median BMI was 23.9 (15.7-35) Kg/m2. The most common finding was chronic cholecystitis in 189 (51.6%). Gall bladder pathology was more frequently seen in donors with BMI >25 Kg/m2, i.e. 69.3 % versus 30.7% (p<0.001). Due to high frequency of abnormal findings, gall bladder should be sent routinely for histopathology in healthy liver donors after cholecystectomy.

Prognostic Role of Acellular Mucin Pools in Patients with Rectal Cancer after Pathological Complete Response to Preoperative Chemoradiation: Systematic Review and Meta-Analysis

The prognostic implication of acellular mucin pools (AMP) in rectal cancer is controversial. There is no Level-I evidence regarding their prognostic impact. This systematic review was performed to determine the impact of AMPon survival in patients with rectal cancer, who demonstrate pathological complete response (PCR) to preoperative chemoradiation (CRT). Asystematic literature review was performed by searching MEDLINE and EMBASE database. For overall survival, the overall random effect model favored mucin negative tumors (HR=2, 95% CI=0.8-4.8) with heterogeneity (I-squared=0, p=0.6). However, the pooled analysis was not significant due to small sample. For disease-free survival, four studies showed HR >1; however, the pooled random effect model indicated little difference in risk (HR=1.06, 95% CI=0.4-2.4) with heterogeneity (I-squared=49.5%, p=0.07). No definite prognostic role of AMPin rectal cancer patients with PCR was found. These results, however, should be interpreted with caution.

Spectrum of histopathological diagnosis in paediatric patients with liver disorders in Pakistan

OBJECTIVE

To document spectrum of paediatric liver disorders confirmed on liver biopsy.

METHODS

The retrospective review of patients was conducted at Shifa International Hospital, Islamabad, Pakistan, and comprised data of all children who underwent ultrasound-guided percutaneous liver biopsy between December 2008 and June 2015. Frequency of individual diagnosis was assessed and compared on gender basis. SPSS 16 was used for statistical analysis.

RESULTS

There were medical records of 74 patients in the study with an overall median age of 6.9 years (interquartile range: 0.2-17.7 years). Metabolic 27(36.5%) and inflammatory 19(25.6%) disorders were the most common aetiologies. At presentation 29(39.1%) patients had cirrhosis; and 25(34%) children were <5 years of age. Metabolic disorders were the most common aetiology in children upto 10 years of age with 19(25.6%) patients. Above the age of 10 years, inflammatory disorders were more frequent and were seen in 10(13.5%). Based on gender, a trend towards significance was observed for metabolic disorders (p=0.08) and children who presented with cirrhosis (p= 0.07), but it was not statistically significant.

CONCLUSIONS

Metabolic disorders were the most common cause of liver disorders. A number of children at presentation had underlying cirrhosis.

Outcome of rectal cancer in patients aged 30 years or less in the Pakistani population

BACKGROUND

The incidence of rectal cancer is increasing in younger age groups. Limited data is available regarding survival outcome in younger patients with conflicting results from western world. The goal of this study was to determine survival in patients with rectal cancer<30 years of age and compare it with their older counterparts in the Pakistani population.

MATERIALS AND METHODS

A retrospective chart review of patients operated for rectal adenocarcinoma between January 2005 and December 2010 was performed. Patients were divided into two groups, Group 1 aged ≤30 years and Group 2 aged >30 years. Patient characteristics, surgical procedure, histopathological details and number of loco-regional and distant failures were compared. Expected 5 year survival was calculated using Kaplan Meier curves and significance was determined using the Log rank test.

RESULTS

There were 38 patients in group 1 and 144 in group 2. A significantly high number of younger patients presented with poorly differentiated histology (44.7% vs 9.7%) (p=0.0001) and advanced pathological stage (63.1% vs 38.1%) (p=0.04). Predicted overall 5 year survival was 38% versus 57% in groups I and II, respectively (p=0.05). Disease free survival was 37% versus 52% and was significantly different (p=0.007).

CONCLUSIONS

Early onset rectal cancer is associated with poor pathological features and a worse outcome in Pakistani population.

Assigning Treatment to HCC Patients for Transplantation: Utility of a New Decision-Making Tool

BACKGROUND The Barcelona clinic liver cancer (BCLC) staging system is considered the standard of care for hepatocellular carcinoma (HCC) management. It has various limitations, including lack of second-line treatment options and combination therapy. We prospectively collected data on our HCC patients based on a new decision-making tool (NDT). The objective of this study was to determine the applicability of this tool and compare it with BCLC for treatment allocation, in particular with respect to liver transplantation. MATERIAL AND METHODS We retrospectively reviewed HCC patients who were managed based on an NDT that was developed in 2012. All patients whose treatment decision was based on this tool between 2012 and 2015 were included. Comparison was made with BCLC. Survival was compared for patients who underwent liver transplantation. RESULTS Based on the NDT, 406 (40.6%) patients were eligible for curative treatment versus only 22 (2.2%) patients based on BCLC. A total of 58 (5.8%) patients underwent liver transplant based on the NDT, while only 2 (0.2%) were transplantable based on BCLC. Estimated 3-year survival for transplanted patients based on the NDT was 73%. There were 41 (4.1%) stage C and 15 (1.5%) stage D BCLC patients who received transplant based on the NDT. Estimated 3-year survival for stage A, C, and D BCLC patients who received transplantation was 100%,72%, and 67%, respectively (P=0.6). CONCLUSIONS The NDT correctly identified a group of HCC patients for liver transplantation who would otherwise have received palliative treatment based on the BCLC algorithm.

Survival advantage with para aortic lymphadenectomy in peri-ampullary cancer: A retrospective cohort study

BACKGROUND

Metastatic para aortic lymph nodes (PALN) in patients with peri ampullary cancer entail poor prognosis. Role of curative surgery in these patients remains debatable. The objective of the current study was to evaluate outcome after extended pancreaticoduodenectomy (PD) in patients with and without positive PALN.

METHODS

We reviewed 65 patients who underwent extended PD with PALN removal between 2011 and 2014. Patients were divided into two groups; those with positive PALN and those without. Patients were sub classified for pancreatic and non-pancreatic cancer. Outcome was determined based on median and estimated 3 year overall survival.

RESULTS

Median age was 57 (32-85) years. PALN were involved in 15 (23%) patients. Overall 3 year survival for patients with and without positive PALN was 60% and 54% (P = 0.7). Significant difference in survival was present between patients with pancreatic cancer and positive PALN [9 (3-12) months] versus non-pancreatic cancers with positive PALN [17.5 (13-38) months] (P = 0.02). Four out of five patients with pancreatic cancer and positive PALN had survival >6 months and 3 out of these 5 patients were alive at the last follow up.

CONCLUSION

Curative surgery may benefit some patients with pancreatic cancer and positive PALN and should be considered selectively.

Paediatric Living Donor Liver Transplantation: ASingle Centre Experience from Pakistan

OBJECTIVE

To determine the outcomes of paediatric living donor liver transplantation (LDLT) recipients from Pakistan in terms of 90-day morbidity and mortality.

STUDY DESIGN

Cohort study.

PLACE AND DURATION OF STUDY

Shifa International Hospital, Islamabad, Pakistan, between April 2012 and April 2015.

METHODOLOGY

All patients in paediatric age group (≤ 17 years) who underwent LDLT with a minimum follow-up of 3 months, were included. All grade 2 and above complications on Clavien-Dindo system were included as morbidity. The main outcome measure was 90-day morbidity and mortality.

RESULTS

Fourteen paediatric LDLTs were performed. Median age of the recipients was 8.5 years ranging between 6 months and 17 years. Wilson's disease and cryptogenic cirrhosis were the most common etiologies (28.6% each). Acute liver failure was present in 5 (35.7%) patients. Overall 90-day morbidity and mortality was 71.4% and 14.2%; both were attributable to pulmonary infection. No difference was observed in morbidity (21.3% vs. 42.8%, p=0.3) and mortality rates (20% vs. 11%, p=1.0) between patients with acute and chronic liver failure. Estimated 3-year survival was 85%.

CONCLUSION

Paediatric LDLT offers a promising treatment option for acute and chronic liver failure. Mortality was attributable to post-transplant pulmonary infections.

Auxiliary partial orthotopic liver transplant for Criggler-Najjar Syndrome: Report of 2 cases from Pakistan

Auxiliary partial orthotopic liver transplant (APOLT) is a treatment option for certain liver disorders where liver structure is preserved. It includes Criggler Najjar syndrome (CNS), urea cycle defects and familial hypercholesterolaemia. Liver transplant as a treatment modality has only recently become available in Pakistan. Here we report two paediatric cases of CNS type 1 where auxiliary liver transplant was performed to correct jaundice and prevent inevitable brain damage. Both recipients and their respective living donors had successful surgery and are doing well.

Short Term Donor Outcomes After Hepatectomy in Living Donor Liver Transplantation

OBJECTIVE

To determine the outcome of living-donor liver transplant (LDLT) donors from the first liver transplant program in Pakistan.

STUDY DESIGN

Cohort study.

PLACE AND DURATION OF STUDY

Shifa International Hospital, Islamabad, from April 2012 to August 2014.

METHODOLOGY

A total of 100 live donors who underwent hepatectomy were included. Demographics, etiologies, graft characteristics and operative variables were retrospectively assessed. Outcome was assessed based on morbidity and mortality.

RESULTS

Median donor age was 28 (17 - 45) years and median body mass index (BMI) was 24 kg/m2 (15 - 36). Male to female ratio was 1.5:1. Hepatitis B and C were the most common underlying etiologies and accounted for 79/100 (79%) of LDLT&amp;#039;s. Overall, 93/100 (93%) donors donated a right lobe graft. Median estimated graft weight to recipient body weight (GW/BW) ratio was 1.03 (0.78 - 2). Standard arterial anatomy was present in 56% donors. The 90-day morbidity was 13/100 (13%) and overall morbidity was 17/100 (17%). Bile leak was encountered in 3 (3%) patients. There was no donor mortality.

CONCLUSION

Acceptable short-term donor outcomes were achieved in an LDLT program in Pakistan with careful donor selection and planning.

Long term survival and impact of various prognostic factors in T1, T2 oral tongue cancer in Pakistan

OBJECTIVE

To determine the outcome in patients with early squamous cell carcinoma of oral tongue, and the impact of various prognostic factors on survival.

METHODS

The retrospective study was conducted at Shaukat Khanum Memorial Cancer Hospital and Research Centre, Lahore, Pakistan, and comprised records of patients treated for squamous cell carcinoma of early stage tongue between March 2003 and October 2009. Various factors, including demographics, risk factors, stage, and grade of the tumour were determined. Kaplan Meier curves were plotted to determine the 5-year overall survival, relapse-free survival, local control, regional control, and loco-regional control.

RESULTS

A total of 137 patients with early oral tongue tumours were treated. With a median follow-up of 46 months, the overall survival of T1, T2 early tongue tumour was 73% and 64%. The incidence of occult metastasis was 30%. The overall survival for Stage I/II and III/IV was 78% and 50% (p=0.002). Patterns of failures included; local 19 (13%), regional 22 (16%), loco-regional 4 (3%) and distant 5 (4%) respectively. The 5-year local control, regional control, loco-regional control was 86%, 82% and 72%. The only significant predictor of overall survival was clinical and pathological N stage in T1 patients, and surgical procedure, grade, pathological N stage in T2 cases.

CONCLUSIONS

Treatment of early squamous cell carcinoma of oral tongue effectively achieved local control and disease-free survival. Nodal stage was the most important prognostic factor in terms of survival and recurrence.

Laparoscopic Adrenalectomy for Ovarian Metastasis and Underlying Horse Shoe Kidney

Adrenal metastasis from ovarian malignancy is extremely rare. Very few cases in literature have reported surgical removal of isolated adrenal metastasis in patients with ovarian carcinoma. Presence of horse shoe kidney can impose technical challenges in patients planned for laparoscopic adrenalectomy. A52 years female with high grade serous carcinoma ovary, horse shoe kidney and previous history of two laparotomies for primary malignancy developed adrenal metastasis 3 years after diagnosis of the primary lesion. She underwent laparoscopic left adrenalectomy in right lateral position. She was discharged on the second postoperative day. Laparoscopic adrenalectomy for ovarian metastasis in a patient with horse shoe kidney has not been reported before. Surgical resection of solitary adrenal metastasis offers survival benefit and laparoscopic resection should always be a treatment option in these patients.

Does prior percutaneous endoscopic gastrostomy alter post-operative outcome after esophagectomy

BACKGROUND

With the introduction of neoadjuvant chemoradiotherapy in patients with esophageal carcinoma, nutritional access has become essential to counter deleterious effects of dysphagia. Current NCCN guidelines do not recommend PEG prior to esophagectomy in these patients, but there is little evidence for this recommendation. The objective of this study was to compare outcomes in patients who underwent esophagectomy with or without prior PEG placement.

METHODS

We retrospectively reviewed 96 patients who underwent esophagectomy between 2005 and 2012 for esophageal carcinoma. Patients were divided into two groups; Group I (PEG +ve) and Group II (PEG -ve). Patient characteristics, operative variables, and post-operative complications were compared. χ (2) and Fisher's test were used for categorical, while t test was used for interval variables.

RESULTS

Median age was 51(18-70) years. Lower thoracic tumors were more common in Group I (69 vs. 63 %) (P = 0.04) and more patients underwent minimally invasive surgery in this group (50 vs. 2.6 %) (P < 0.0001). Mean blood loss (326 vs. 465 ml) (P = 0.02) and ICU stay (1.6 vs. 4.3 days) (P = 0.01) were significantly lower in Group I. There was no 30-day mortality in Group I versus 10.5 % in Group II (P = 0.01). No significant difference in anastomotic leak and stricture rate was observed. Gastric conduit was used in all patients for reconstruction. One patient had malignancy in PEG site biopsy.

CONCLUSION

Percutaneous endoscopic gastrostomy before esophagectomy is safe and does not adversely impact post-operative outcomes.

The travails of setting up a living donor liver transplant program: Experience from Pakistan and lessons learned

Living donor liver transplantation (LDLT) is the only treatment option for patients with end-stage liver disease (ESLD) where cadaveric donors are not available. In developing countries, the inception of LDLT programs remains a challenge. The first successful liver transplantation program in Pakistan started transplantation in 2012. The objective of this study was to report outcomes of 100 LDLT recipients in a developing country and to highlight the challenges encountered by a new LDLT program in a resource-limited setting. We retrospectively reviewed recipients who underwent LDLT between April 2012 and August 2014. Demographics, etiology, graft characteristics, and operative variables were assessed. Outcome was assessed on the basis of morbidity and mortality. All complications of ≥ 3 on the Clavien-Dindo grading system were included as morbidity. Estimated 1-year survival was calculated using Kaplan-Meier curves, and a Log-rank test was used to determine the significance. Outcomes between the first 50 LDLTs (group 1) and latter 50 LDLTs (group 2) were also compared. Median age was 46.5 (0.5-72) years, whereas the median MELD score was 15.5 (7-37). The male to female ratio was 4:1. ESLD secondary to hepatitis C virus was the most common indication (73% patients). There were 52 (52%) significant (≥ grade 3) complications. The most common morbidities were bile leaks in 9 (9%) and biliary strictures in 14 (14%) patients. Overall mortality in patients who underwent LDLT for ESLD was 10.6%. Estimated 1-year survival was 87%. Patients who underwent transplantation in the latter period had a significantly lower overall complication rate (36% versus 68%; P = 0.01). Comparable outcomes can be achieved in a new LDLT program in a developing country. Outcomes improve as experience increases.

Radical surgical management of periampullary duodenal adenocarcinoma: a single institution experience

OBJECTIVE

To share a single-centre experience with radical resection of adenocarcinoma of the second part of duodenum.

METHODS

The retrospective review was conducted at Shaukat Khanum Memorial Cancer Hospital, Lahore, and comprised data of patients who underwent pancreaticoduodenal resection for duodenal adenocarcinoma from January 1999 to December 2012. Patient characteristics and histopathological variables were assessed. Post-op complications, median disease-free span and overall survival were assessed. Expected 5-year disease-free and overall survival were calculated using Kaplan Meier curves.

RESULTS

Of the 12 patients whose records were included, 8 (66.6%) were men and 4 (33.33%) were women. Overall median age was 55 years (range: 38-70 years). Jaundice was the predominant symptom in 9 (75%) patients. Five complications were observed during the post-operative period. Median disease-free and overall survival was 14.5 (0-140) and 17.5 (1-140) months respectively. Expected 5-year disease-free and overall survival were 56% and 21% respectively. Patients who survived >24 months had underlying well differentiated tumours, negative surgical margins, absence of perineural invasion and pancreatic involvement.

CONCLUSION

Peri-ampullary duodenal adenocarcinoma is a rare malignancy. In selected patients, pancreatic oduodenectomy produces acceptable results.

Ten year experience with surgery and radiation in the management of malignant major salivary gland tumors

BACKGROUND

Despite being rare in incidence, malignant tumors of major salivary glands show diverse histological variation. There are limited data on major salivary gland tumor management and outcome from Pakistan. The objective of this study was to share our experience with management of malignant tumors of major salivary glands.

MATERIALS AND METHODS

Patients who received treatment at Shaukat Khanum Cancer Hospital and Research Center from July 2002 to June 2011 with an underlying diagnosis of a major salivary gland malignancy were included. Patient characteristics and treatment modalities were assessed. Local, regional and distant failures were determined. Disease free survival (DFS) and overall survival (OS) were calculated using Kaplan Meier curves and the Log rank test was used to determine statistical significance. Univariate and multivariate analyses were performed using Cox proportional hazard regression.

RESULTS

The parotid gland was the primary site of origin in 104 (80%) patients. Mucoepidermoid carcinoma (43%) and adenoid cystic carcinoma (24%) were the most common histological types. Surgery followed by adjuvant radiation remained the mainstay treatment modality with 81 (62%) patients. Nineteen (15%) patients were treated with surgery alone and 30 (23%) patients with locally advanced surgically inoperable tumors received radiation only. Forty one (32%) patients failed the treatment (local 12, regional 11, locoregional 5, distant 13). The expected 5 year DFS and OS were 65% and 74% respectively. On multivariate analysis, grade was the only independent predictor of DFS and nodal involvement was the only independent predictor of overall survival.

CONCLUSIONS

Employing existing standards of treatment, comparable survival can be achieved in Pakistani population with major salivary gland malignancies as elsehwere in the world.

Impact of lymph node ratio and number on survival in patients with rectal adenocarcinoma after preoperative chemo radiation

BACKGROUND

Retrieval of <12 lymph nodes after proctectomy and preoperative chemoradiation (C-XRT) may improve survival in good risk patients. The objective of this study was to determine impact of <12 retrieved lymph nodes and lymph node ratio (LNR) on survival in a population with certain poor prognostic features for rectal cancer.

METHODS

Patients who underwent surgery for rectal adenocarcinoma between 2005 and 2011 were divided them into <12 or >12 lymph node groups. The LNR groups were based on interquartile range. Clinicopathological and treatment outcomes were compared. Expected 5 year disease free and overall survival was calculated. Cox proportional hazard model was used to determine independent predictors.

RESULTS

More patients in <12 lymph nodes removed group had low tumors (<5 cm from anal verge) (75.5% versus 60.7%) (P=0.03) and underwent abdominoperineal resection (59.1% versus 42.9%) (P=0.02). Overall survival (OS) and disease free survival (DFS) was not different [(56% and 52% (P=0.7)] [(50% and 57% (P=0.5)]. LNR<0.15 was independent predictor of DFS while LNR ratio<0.12 for OS on multivariate analysis.

CONCLUSION

LNR and not number of retrieved nodes impacts survival in younger patients with predominance of anorectal tumors after C-XRT. A specific LNR cutoff remains to be defined.

Survival outcome of malignant minor salivary tumors in Pakistani population

Objective:

Malignant tumors of minor salivary glands (MSG) are rare. Survival outcome in Pakistani population with malignant MSG tumors remains to be defined. The objective of this study was to report the clinical presentation, treatment modalities, and survival outcome of radically treated malignant tumors of MSG in Pakistani population.

Materials and Methods:

Between April 2003 and March 2011, 45 patients with malignant tumors of MSG were treated at Shaukat Khanum Cancer Hospital and included in the study. Patient characteristics and treatment modalities were assessed and local, regional, and distant failures determined. Relapse-free (RFS) and overall survival (OS) was calculated using Kaplan-Meier curves, and log-rank test was used to determine significance.

Results:

Median age was 40 (17-83) years. Male to female ratio was 1.25:1. Most common site was hard palate in 31 (69%) patients. Adenoid cystic carcinoma (51%) was the most common histological diagnosis. Nine patients (20%) underwent surgery as the only treatment modality, six patients received (13%) radiotherapy alone, and 30 patients (67%) had surgery followed by adjuvant radiotherapy. Eight patients developed recurrence (four local, two regional, one locoregional, and one distant). The 5-year actuarial overall OS and RFS was 77 and 66%, respectively. Age, T-stage, and treatment modality were significant for RFS, whereas T-stage and treatment modality were significant factors for OS.

Conclusion:

Surgery as single modality or combined with radiation therapy resulted in acceptable survival in Pakistani population with malignant minor salivary tumors.

Impact of acellular mucin pools on survival in patients with complete pathological response to neoadjuvant treatment in rectal cancer

BACKGROUND

Rarely, patients with pathological complete response (PCR) after neoadjuvant chemoradiotherapy demonstrate acellular mucin pools. The prognostic significance of this finding is controversial. The objective of this study was to determine impact of acellular mucin pools on disease free and overall survival in patients with complete pathological response to neoadjuvant chemoradiotherapy in rectal cancer.

METHODS

One hundred and seventy two patients received neoadjuvant chemoradiotherapy for rectal cancer and underwent surgery. Patients were divided into two groups based on presence of acellular mucin pools. Locoregional failures, distant failures and deaths were compared. Expected 5 year disease free and overall survival was calculated.

RESULTS

Median follow-up was 36(4-94) months. Complete pathological response was identified in 35(20.3%) patients. Of these, 12(34.2%) had acellular mucin pools in resected specimen. Majority of mucin negative tumors were moderately differentiated (78% vs 25%) (P = 0.005). Median overall survival for mucin positive and mucin negative tumors was 4(1.3-5.7) and 3.3(0.1-6.3) years respectively. Expected 5 year disease free and overall survival for mucin positive and mucin negative tumors was 73% and 89% (P = 0.1) and 75% and 87% (P = 0.4).

CONCLUSION

Acellular mucin pools in rectal cancer following a PCR to neoadjuvant treatment do not impact survival.

Comparison between early and late onset breast cancer in Pakistani women undergoing breast conservative therapy: is there any difference?

BACKGROUND

Early onset breast cancer is associated with poor outcomes but variable results have been reported. It is a significant problem in Pakistani women but remains under reported. Breast conservation plays an important role in surgical management of this younger patient group. The objective of this study was to determine the outcome of breast conservative therapy in patients with early onset breast cancer in our population and compare it with their older counterparts.

MATERIALS AND METHODS

A review of patients with invasive breast cancer who underwent breast conservation surgery at Shaukat Khanum Cancer Hospital from 1997 to 2009 was performed. Patients were divided into two groups i.e. Group I age ≤ 40 and Group II >40 years. A total of 401 patients with breast cancer were identified in Group I and 405 patients in Group II. Demographics, histopathological findings and receptor status of the two groups were compared. The Chi square test was used for categorical variables. Outcome was assessed on basis of 10 year locoregional recurrence free survival (LRRFS), disease free survival (DFS) and overall survival (OS) . For survival analysis Kaplan Meier curves were used and significance was determined using the Log rank test. Cox regression was applied for multivariate analysis.

RESULTS

Median follow up was 4.31 (0.1-15.5) years. Median age at presentation was 34.6 years (17-40) and 51.9 years (41-82) for the two groups. Groups were significantly different from each other with respect to grade, receptor status, tumor stage and use of neoadjuvant therapy. No significant difference was present between the two groups for estimated 10 year LRRFS (86% vs 95%) (p=0.1), DFS (70% vs 70%) (p=0.5) and OS (75% vs 63%) (p=0.1). On multivariate analysis, tumor stage was an independent predictor of LRRFS, DFS and OS.

CONCLUSIONS

Early onset breast cancer is associated with a distinct biology but does not lead to poorer outcomes in our population.

Results of level-II oncoplasty in breast cancer patients: an early experience from a tertiary care hospital in Pakistan

OBJECTIVE

To assess the oncologic and cosmetic outcomes for breast cancer patients who underwent breast conservation therapy using Level II oncoplasty techniques.

METHODS

The prospective, non-randomised and descriptive study was conducted at the Department of Surgery, Unit IV of Civil Hospital, Karachi, from December 2009 to November 2011 in which 21 consecutive women with breast carcinoma who underwent wide local excision with remodeling mammoplasty were enrolled. All patients were reviewed by the surgeon and medical oncologist every 3 months for the first year. A grading system of 5-1 (excellent to poor) was employed and those with 3 or more were considered to have acceptable results.

RESULTS

The mean patient age was 45.38 +/- 10.09 years (range: 26-70); 11 (52.3%) were premenopausal and 10 (47.7%) were postmenopausal; and 5 (27.8%) had family history of breast cancer. The mean size of the tumour determined by histology was 59.9 +/- 3.18 mm (range: 25-150). Eight (30%) patients received preoperative chemotherapy to downsize the tumour. Three (14.2%) patients received preoperative radiotherapy. Mean operative time was 1.59 +/- 0.52 hours (range: 1-2.5 hours). Mean volume of breast tissue excised from the breast containing the tumour was 545.27 +/- 412.06 cm3 (range: 43.70-1456). Assessment of excision margins showed no tumour at the margins of 19 (90.4%) patients. Two (9.5%) patients had close but negative margins. The mean hospital stay was 7.10 +/- 3.30 days (range: 4-15). There were early complications in 4 (19%) patients. One (4.76%) patient had late complications. Two (9.5%) patients developed tumour recurrence; both had an ipsilateral tumour recurrence. None of the patients developed metastases and one died of cardiac problem. Twenty (95.2%) patients had an acceptable post-surgical cosmetic result.

CONCLUSION

Level II oncoplasty was a safe option in breast conservation allowing large-sized and difficult-location tumour excision with good cosmetic outcome in the study group. There is a need to increase the awareness and acceptance of this new technique not only amongst patients but also doctors.

Tracheotomy in Cancer Patients: Experience from a Cancer Hospital in Pakistan

Tracheotomy is commonly performed for the management of upper airway compromise. Trauma and head and neck cancers are the most frequent indications. The objective of this study was to share our experience with tracheotomy performed for a broad range of malignancies including but not limited to head and neck cancer. This study is a retrospective case series of patients who underwent tracheotomy from January 2004 to June 2012 at Shaukat Khanum Memorial Cancer Hospital and Research Centre, Lahore, Pakistan. A total of 130 patients were included in the study. Patient demographics, indications for tracheotomy, underlying malignancy, and duration of follow-up were assessed. Main indications were elective (prolonged intubation and/or as a prerequisite for head and neck cancer surgery) and emergency (stridor). Outcome was assessed on a basis of successful decannulation and complications related to tracheotomy. Indications for tracheotomy were elective in 55 (44.7 %) and emergent in 75 (55.3 %) patients. Most common underlying malignancy was leukemia/lymphoma in 38 (29.2 %) patients. There were seven (5.3 %) complications in emergency tracheotomies including bleeding in three, emphysema in two, and dislodgement and infection in one patient each. In the elective setting, three (2.3 %) complications were observed with dislodgement in one and stomal stenosis in two patients. Decannulation was successfully carried out in 23 (18 %) patients. Median follow-up of patients was 1 month (range 0-86). No tracheotomy-related mortality was observed. Tracheotomy was performed with relative safety in cancer patients, but low rate of successful decannulation predominantly due to persistent nature of disease.

Adrenal angiomyolipoma

Adrenal angiomyolipoma is a rare tumour arising from the mesenchymal tissue containing fat cells. A 72 years old lady presented with right upper quadrant pain. She underwent laparotomy after relevant imaging and investigations and was found to have a right sided adrenal angiomyolipoma confirmed on histopathology, which was encasing the inferior vena cava and renal veins. Due to its diagnostic difficulty, potential to achieve large size and possible complications; surgeons and pathologists should keep angiomyolipoma in mind when dealing with an adrenal mass.