Short-Term Outcomes of First 100 Laparoscopic Colorectal Surgeries at a Newly Developed Surgical Setup at Peshawar

BACKGROUND

The incidence of colorectal cancer (CRC) has risen steadily, necessitating innovative strategies for diagnosis and treatment. Minimally invasive surgery, exemplified by laparoscopic techniques, has emerged as a transformative approach in colorectal surgical practices. Laparoscopy offers advantages such as improved aesthetic outcomes, reduced post-operative pain, early patient mobilization, and shorter hospital stays.

OBJECTIVE

This study aims to present the short-term surgical outcomes of the first 100 elective laparoscopic CRC resections performed at a newly established tertiary care cancer center in Peshawar, Pakistan.

MATERIALS AND METHODS

Data were prospectively collected for CRC resections performed between April 2021 and February 2022. The study included patients above 18 years of age with biopsy-proven CRC. Surgical procedures were performed by two dedicated colorectal surgeons trained in minimally invasive surgery. Patient demographics, pre-operative factors, intraoperative parameters, and post-operative outcomes were systematically recorded and analyzed.

RESULTS

Among the 100 cases included in the study, laparoscopic colorectal surgeries were successfully performed without any conversions to open surgery. The mean age of the study population was 52.5 years, with a male-to-female ratio of 2:1. The majority of cases were colon (48%) and anorectal cancers (52%). The mean lymph node yield was 18.29 (range 6-49). Only one patient required a re-look laparoscopy for a pelvic hematoma, and overall mortality was reported at 1%.

CONCLUSION

Laparoscopic colorectal surgery is a safe and effective treatment option for elective colorectal operations with minimal post-operative complications and favorable short-term outcomes.

Spotlight on Laparoscopy in the Surgical Resection of Locally Advanced Rectal Cancer: Multicenter Propensity Score Match Study

Purpose

This study was aimed to assess the feasibility of laparoscopic rectal surgery, comparing quality of surgical specimen, morbidity, and mortality.

Methods

Prospectively acquired data from consecutive patients undergoing laparoscopic surgery for rectal cancer, at 2 minimally invasive colorectal units, operated by the same team was included. Locally advanced rectal tumors were identified as T3B or T4 with preoperative magnetic resonance imaging scans. All the patients were operated on by the same team. The 1:1 propensity score matching was performed to create a perfect match in terms of tumor height.

Results

Total of 418 laparoscopic resections were performed, out of which 109 patients had locally advanced rectal cancer (LARC) and were propensity score matched with non-LARC (NLARC) patients. Median operation time was higher for the LARC group (270 minutes vs. 250 minutes, P=0.011). However, conversion to open surgery was done in 5 vs. 2 patients (P=0.445), reoperation in 8 vs. 7 (P=0.789), clinical anastomotic leak was found in 3 vs. 2 (P=0.670), and 30-day mortality rates was 2 vs. 1 (P>0.999) between LARC and NLARC, respectively. Readmission rate was higher in the NLARC group (33 patients vs. 19 patients, P=0.026), due to stoma-related issues. There was no statistically significant difference in the R0 resection between the 2 groups (99 patients in LARC vs. 104 patients in NLARC, P=0.284).

Conclusion

This study demonstrates that standardized approach to laparoscopy is safe and feasible in LARC. Comparable postoperative short-term clinical and pathological outcomes were seen between LARC and NLARC groups.

Laparoscopic Curative Resection for Right-Sided Colonic Tumors: Initial Experience From a Specialized Cancer Hospital of a Developing Country

Introduction

Laparoscopic colonic resection is increasingly becoming popular worldwide and aims to provide curative resection in addition to the inherent benefits of laparoscopic surgery. The aim of this study was to evaluate the long-term outcomes of laparoscopic right hemicolectomy in a Pakistani cohort of patients.

Methods and procedures

We retrospectively analyzed the medical records of all patients who presented to our hospital with the diagnosis of right-sided colon carcinoma from January 2010 to December 2018 and underwent laparoscopic right or extended right hemicolectomy. Demographics, operative findings, histopathology report, and follow-up of patients were recorded and the analysis was performed on Statistical Packages for the Social Sciences (SPSS) Version 20 (IBM Corp, Armonk, NY).

Results

Seventy-five patients were included, 56 (74.7%) of whom were males and 19 (25.3%) were females. The median age was 52 years (range 25-82 years). The median hospital stay was five days (Range 3-13 days). The median blood loss was 70 milliliters and the mean operative time was 195.5±77.6 minutes. Laparoscopic extended right hemicolectomy was performed in 23 (16.67%) patients and standard right hemicolectomy in 52 (83.33%) patients. Most (72%) of the patients had a pathological T3 tumor, and the majority (61.3%) of the patients had no nodal involvement (pN0). The mean number of lymph nodes removed was 20+8. The median numbers of involved lymph nodes were 1.14+2.19. All the patients had R0 resection. Postoperatively, two patients had pelvic collection, and there was no 30-day mortality. Local recurrence occurred in four patients and distant metastases were observed in nine patients. The median follow-up in our study was 40.5±18.35 months. The median disease-free survival was 42±2.17 months and the median overall survival was 44±2.16 months.

Conclusion

Our experience with laparoscopic right colon resections has confirmed the safety and feasibility of the procedure.

Robotic Surgery for Colorectal Cancer

Master-slave manipulators (otherwise known as telemanipulators) were introduced into minimally invasive surgery in the 1990s to overcome the limitations of laparoscopic surgery. This led to the development of the first robotic surgical systems which, over the last 10 years, have rapidly gained acceptance among colorectal surgeons. Advantages of robotic surgical systems such as superior instrumentation and field of vision enable precise dissection in confined spaces such as the pelvis, which make it a particularly attractive tool for rectal surgery. The feasibility and safety of robotic rectal surgery is now well established and there is increasing evidence that it might offer superior peri- and postoperative outcomes when compared to laparoscopic rectal surgery. Robotic rectal surgery is easier to learn than laparoscopic surgery and the creation of a structured training program for robotic rectal surgery in Europe has facilitated the learning of this technique in an environment that promotes patient safety and improved patient outcomes through equipment fidelity and operator skill. It is foreseeable that in the near future robotic systems will become part of routine surgical practice in colorectal surgery.

Risk factors effecting development of metachronous liver metastasis in rectal cancer patients after curative surgical resection. Shaukat Khanum Memorial Cancer Hospital and Research Centre, Lahore experience

OBJECTIVE

To determine risk factors affecting development of metachronous liver metastasis in rectal cancer patients after curative surgical resection.

METHODS

The retrospective cohort study was conducted at Shaukat Khanum Memorial Cancer Hospital and Research Centre, Lahore, Pakistan, and comprised data of patients with histologically proven rectal carcinoma admitted to the department of surgical oncology from January 2005 to December 2015. Clinical data of all patients, including age, gender, clinical presentation, clinical and pathological tumour-nodes-metastasis classification, neoadjuvant chemo-radiotherapy, surgery, adjuvant chemotherapy, pre- and postoperative carcinoembryonic antigen levels, histopathological findings and tumour recurrence were analysed. SPSS 23 was used for data analysis..

RESULTS

Of the 434 patients, 26(6%) developed liver metastasis. Of them, 18(69%) were male and 16(61.5%) were aged below 50 years. On clinical staging, 2(7.7%) patients had stage II disease, 22(84.6%) had stage III, and 2(7.7%) patients had stage IV disease. At last follow-up, 2(7.7%) patients were alive without disease, 7(27%) had expired, while 17(65.4%) were alive with disease..

CONCLUSIONS

Tumour depth, lymph node metastasis, postoperative carcinoembryonic antigen levels, complete tumour response on histopathology were found to beresponsible for metachronous liver metastases in rectal cancer patients following curative resection.

Surgical Outcome of Pancreaticoduodenectomy in Pancreatic and Periampullary Neoplasms

OBJECTIVE

To report the results in the surgical treatment of pancreatic and periampullary neoplasms with emphasis on surgical technique, short-term postoperative outcome and the lessons learnt.

STUDY DESIGN

Case series.

PLACE AND DURATION OF STUDY

This study was carried out at Shaukat Khanum Memorial Cancer Hospital and Research Center, Lahore, from October 2014 to May 2016.

METHODOLOGY

Patients undergoing surgical treatment of pancreatic and periampullary neoplasms were selected. Patients' characteristics including demographics, surgical technique, and 30-day morbidity and mortality were recorded. International Study Group of Pancreatic Fistula (ISGPF) classification was used to define postoperative pancreatic fistula and Clavien-Dindo classification to grade complications.

RESULTS

Atotal number of 65 patients underwent the trial of dissection; 50 had pancreaticoduodenectomy and 15 patients underwent palliative bypass and were excluded from analysis. Sixty-four percent were males and 36% were females. The most common tumor was periampullary (n=29, 58%) followed by pancreatic head (14, 28%) and duodenal tumors (n=07, 14%). Mean age was 52.92 ±13.27 years; mean operating time was 470 ±358.28 minutes and median blood loss was 400 (287-500) ml. Pancreaticogastrostomy (PG) was the preferred reconstruction technique in 37 (74%) verses pancreaticojejunostomy (PJ) in 13 (26%) patients. Four (08%) patients needed portal vein reconstruction and two (04%) replaced right hepatic artery resection and reconstruction due to tumor involvement. There were seven Grade A, and one Grade B and C pancreatic fistulae each. Three patients (06%) needed endoscopic therapy for gastrointestinal hemorrhage from pancreatic stump. There was one death in postoperative period.

CONCLUSION

Pancreaticoduodenectomy is a safe procedure with excellent postoperative outcome, if carried out in a specialized hepato-pancreato-biliary unit. APG reconstruction can be a safer alternative to PJ.

Rectal Carcinoma: Demographics and Clinicopathological Features from Pakistani Population Perspective

Background

Colorectal carcinoma is ranked as the second most common cancer diagnosis in females and third in males. It is the third leading cause of cancer-related deaths worldwide. Disease burden has been attributed to a myriad of factors comprising genetic, environmental, and dietary factors. Rectal cancer has been shown to demonstrate variance according to the geographical location.

Methods

A retrospective review of 477 rectal cancer patients treated at Shaukat Khanum Memorial Cancer Hospital & Research Centre from 2006 to 2014 was performed. Demographic and clinicopathological features were compared between the two age groups (≤40 or >40 years). These included sex, ethnicity, family history of cancer, the location of tumor, clinical staging, histopathological type, and response to chemoradiation. Chi-square was used to compare the frequencies between the two age groups. p-value < 0.05 was taken as significant.

Results

Mean age of the study group was 44.62 ± 16.11 years. 43.8% were ≤40 years of age, and 70.2% were male. 50.3% patients belong to Punjab province, 287 (60.2%) had lower rectal cancer, family history of cancer was present in 82 (17.2%) patients. 432 (90.5%) patients had T1/T2 disease and 296 (62.1%) had N2 disease. Metastatic disease at presentation was observed in 37 (7.8%). Progressive disease was found in 90 (18%) patients.

Conclusion

High frequency of young onset rectal cancers and the lack of family history emphasize the need of indigenous strategies and national awareness of this disease for an early identification of these patients.

Outcomes of BCG Induction in High-Risk Non-Muscle-Invasive Bladder Cancer Patients (NMIBC): A Retrospective Cohort Study

Non-muscle-invasive bladder cancer (NMIBC) is categorized into high-risk and low-risk groups. Although, bacillus Calmette-Guerin (BCG) is the recommended adjuvant therapy of high-risk bladder tumor, optimal schedule (induction versus maintenance) of this therapy is a subject of debate. The objective was to evaluate outcomes of induction BCG in high-risk NMIBC patients at Shaukat Khanum Memorial Cancer Hospital & Research Centre, Pakistan and retrospective cohort study conducted in the department of urology, Shaukat Khanum Memorial Cancer Hospital & Research Centre, Pakistan. Three-year disease-free survival and progression-free survival was the main outcome measure. Data of 68 high-risk (Ta and T1 with G3 or high-grade subtype) bladder cancer patients who underwent transurethral resection followed by six-weekly intravesical BCG instillation was included in the study. Recurrence was described as biopsy-proven bladder cancer; whereas the presence of muscle invasion was considered as progression. Disease-free survival and progression-free survival were defined as time intervals elapsed between the starting date of BCG instillation and recurrence or progression, respectively. Kaplan-Meier curve was employed to estimate the three-year study end-points. Disease-free survival at three years was observed to be 66.2% and progression-free survival at 86.8%. The use of induction BCG alone for high-risk patients of NMIBC is a viable option both in terms of effective disease-free and progression-free survival rates.

Clinical profile, treatment and survival outcomes of peadiatric germ cell tumours: A Pakistani perspective

Germ Cell Tumours (GCTs) are rare tumours. Generally 80% are benign and 20% malignant with a bimodal age distribution. The retrospective study was conducted at Shaukat Khanum Cancer Hospital, Lahore, Pakistan, and comprised all paediatric patients below 18 years of age who received treatment for histology-proven GCT from 2006 to 2014. Of the 207 patients, 98(42.3%) were males and 109(52.7%) were females. The most common GCT was yolk sac tumour in 90(43.5%) children followed by mixed GCT in 40(19.3%) and dysgerminoma in 34(16.4%). Gonads were most commonly involved in 165(79.7%) patients with metastasis in 24(11.6%) at presentation and recurrence in 26(12.5%) patients. Overall, 133(64.3%) patients are well and followed up at regular intervals and 55(26.5%) have been lost to follow-up with an expected overall 5-year median survival of 45%. Despite the distinct clinical profile of paediatric GCT, survival can be improved by early diagnosis, regimented treatment according to set guidelines, protocols and by improving follow-up.