The Technique and Justification for Minimally Invasive Surgery in COVID-19 Pandemic: Laparoscopic Anterior Resection for Near Obstructed Rectal Carcinoma.

Introduction: The recent COVID-19 pandemic outbreak has made surgeons change and take on newer strategies and safe exercises. All elective cases have been put off, but oncology cases need to be done to prevent progression of the disease. There is concern about minimally invasive surgery due to aerosol formation. Here we discuss how we have dealt with this in our colorectal surgery department taking into account current evidence about the danger of viral transmission during laparoscopic surgery. Discussion: We report a case of 28 years old female patient with carcinoma rectum. The patient had near total intestinal obstruction. She was operated on utilizing laparoscopic anterior resection. The air seal (CONMED, Utica, NY) and high-efficiency particulate air (HEPA) filter was utilized for safe gas evacuation. There is no evidence against laparoscopic surgery, which suggest viral transmission. One should take utmost precautions using N95 masks and personal protective equipment (PPE). Air filtration products like aerosol, HEPA filters will be of great aid in safe evacuation of gases. Conclusion: At present, there is no solid evidence to suggest viral transmission through surgical smoke. We believe due to effective smoke containment, less blood loss, and less postoperative stay, laparoscopy will be a non-inferior option than open surgical procedure. We advise taking all precautions for operating room staff to lessen the danger of transmission.

Laparoscopic Posterior Pelvic Exenteration (Complete and Supralevator) for Locally Advanced Adenocarcinoma of the Rectum in Females: Surgical Technique and Short-Term Outcomes.

Background: Laparoscopic posterior exenteration (total and supralevator) is a complex and rarely done procedure. In this study we describe the surgical technique and short-term perioperative outcomes in 7 female patients of locally advanced carcinoma rectum operated with laparoscopic pelvic exenteration. Materials and Methods: We report 7 cases of carcinoma rectum involving either posterior wall of the uterus or vagina, which were operated with a laparoscopic procedure. All perioperative and intraoperative data were collected retrospectively from prospectively maintained electronic data. Results: Nine female patients with the diagnosis of nonmetastatic locally advanced lower rectal adenocarcinoma were selected. In MRI 4 patients had uterus-cervix involvement and 3 patients had a posterior vaginal wall and anal sphincter involvement. Four patients were operated with laparoscopic supralevator posterior exenteration and 3 patients were operated with laparoscopic complete posterior exenteration. Three patients underwent vaginal reconstruction, which was done with bilateral V-Y plasty. All 7 patients received neoadjuvant chemoradiotherapy (NACTRT), 3 patients also received additional chemotherapy (CAPOX regimen) due to poor response to NACTRT. Mean body mass index (BMI) was 23.85 (range 19-27.20). Mean duration for complete posterior exenteration was 9.63 hours (range 7-12 hours). Mean duration for supralevator posterior exenteration was 6.81 hours (range 6.25-7.5 hours). The mean postoperative stay was 10.71 days (range 7-16 days). Mean blood loss was 700 mL (range 200-1800 mL). On postoperative histopathology, all margins were free of tumor in all cases. Conclusion: Laparoscopic approach for locally advanced carcinoma rectum in female patients is feasible with less morbidity and safe short-term oncological outcomes. Careful selection of patients based on MRI is a must before undertaking the minimally invasive surgery approach. Long-term outcomes are still unknown and will require long-term follow-up.

Laparoscopic Pelvic Exenteration for Locally Advanced Rectal Cancer, Technique and Short-Term Outcomes.

Background: Since last two decades minimally invasive techniques have revolutionized surgical field. In 2003 Pomel first described laparoscopic pelvic exenteration, since then very few reports have described minimally invasive approaches for total pelvic exenteration. Methods: We report the 10 cases of locally advanced rectal adenocarcinoma which were operated between the periods from March 1, 2017 to November 11, 2017 at the Tata Memorial Hospital, Mumbai. All male patients had lower rectal cancer with prostate involvement on magnetic resonance imaging (MRI). One female patient had uterine and fornix involvement. All perioperative and intraoperative parameters were collected retrospectively from prospectively maintained electronic data. Results: Nine male patients with diagnosis of nonmetastatic locally advanced lower rectal adenocarcinoma were selected. All patients were operated with minimally invasive approach. All patients underwent abdominoperineal resection with permanent sigmoid stoma. Ileal conduit was constructed with Bricker's procedure through small infraumbilical incision (4-5 cm). Lateral pelvic lymph node dissection was done only when postchemoradiotherapy MRI showed enlarged pelvic nodes. All 10 patients received neoadjuvant chemo radiotherapy, whereas 8 patients received additional neoadjuvant chemotherapy. Mean body mass index was 21.73 (range 19.5-26.3). Mean blood loss was 1000 mL (range 300-2000 mL). Mean duration of surgery was 9.13 hours (range 7-13 hours). One patient developed paralytic ileus, which was managed conservatively. One patient developed intestinal obstruction due to herniation of small intestine behind the left ureter and ileal conduit. The same patient developed acute pylonephritis, which was managed with antibiotics. Mean postoperative stay was 14.6 days (range 9-25 days). On postoperative histopathology, all margins were free of tumor in all cases. Conclusion: Minimally invasive approaches can be used safely for total pelvic exenteration in locally advanced lower rectal adenocarcinoma. All patients had fast recovery with less blood loss. In all patients R0 resection was achieved with adequate margins. Long-term oncological outcomes are still uncertain and will require further follow-up.

Young Vs Old Colorectal Cancer in Indian Subcontinent: a Tertiary Care Center Experience.

This study aims to compare patient, tumor, treatment-related factors and survival between young (<45 years) and old (>45 years) Indian colorectal cancer (CRC) patients. Total 778 patients of CRC were registered at tertiary cancer center in India between 1 August 2013 and 31 July 2014. Patients were followed up for median period of 27.73 months. Data regarding patient, tumor, treatment and survival-related factors were collected. Patients were divided in young (≤45 years) and old (>45 years) age groups. Statistical analysis was done with SPSS software version 23. Young age group patients presented more commonly with poor histology, node-positive disease, and rectal site. Younger age group patients received multiple lines of neoadjuvant treatment. There was no significant overall survival difference in both groups of patients. On stratified stage-wise analysis, no significant overall survival (OS) difference was found between two groups (young vs old-1- and 3-year OS: 85.2 and 61.5% vs 81.5 and 64.5%, respectively; P = 0.881). On univariate analysis, gender, performance status, site, stage, differentiation, TRG, CRM status, signet ring type, and CEA level were significant prognostic factors. In disease-free survival (DFS) analysis, it is found that there is statistically significant difference in DFS (young vs old: 1 and 3 years; 77.6 and 62.8% vs 85.8 and 74.1%, respectively; P value, 0.02), but when OS was analyzed for same group of patient, there was no statistical difference (P = 0.302). This study confirms the high incidence rates of CRC in young Indian patients. There is no OS difference between two age groups. In operated group of patients, there is higher DFS in older patients but no OS advantage at 3 years follow-up. Further long-term follow-up is required to see any OS difference.

A rare case of perforated tubular ileal duplication in 72-year-old male.

Enteric duplication is a rare anomaly, which is common in pediatric population, and it is very rare in adults. Enteric duplication can occur anywhere from mouth to anus. Ileal duplication is the most common (30 %) followed by duodenum, stomach, jejunum, colon and rectum. Though most cases are presented within the first 2 years of life, some may present at later age. Here we report a case of a 72-year-old male presented to us in emergency as acute abdomen, which was presumptively diagnosed as ca rectosigmoid, but later the patient developed perforative peritonitis. On exploratory laparotomy he was diagnosed as a case of perforated ileal duplication cyst. Though these lesions are very rare, the importance of enteric duplication cysts lies in the fact that they can mimic many disease conditions and may be left untreated.