Does the body mass index impact lymph node yield for colorectal cancer resection, and does operative approach influence this: a review of bi‐national colorectal cancer audit database

2021 ◽  
Author(s):  
Ju Yong Cheong ◽  
Christopher John Young ◽  
Christopher Byrne
Keyword(s):  
Colorectal Cancer ◽  
Body Mass Index ◽  
Lymph Node ◽  
Body Mass ◽  
The Body ◽  
Operative Approach ◽  
Lymph Node Yield ◽  
Cancer Resection ◽  
Colorectal Cancer Resection ◽  
Node Yield

P13. Lymph node yield following colorectal cancer resection: does surgical approach matter?

2015 ◽  
Vol 41 (11) ◽  
pp. S272-S273
Author(s):  
Sreelakshmi Mallappa ◽  
Shyamala Fernandez ◽  
Faris Kubba ◽  
Mariasoosai Pathmarajah
Keyword(s):  
Colorectal Cancer ◽  
Lymph Node ◽  
Surgical Approach ◽  
Lymph Node Yield ◽  
Cancer Resection ◽  
Colorectal Cancer Resection ◽  
Node Yield

scholarly journals Abdominal fat ratio – a novel parameter for predicting conversion in laparoscopic colorectal surgery

2017 ◽  
Vol 99 (1) ◽  
pp. 46-50 ◽  
Author(s):  
SI Scott ◽  
S Farid ◽  
C Mann ◽  
R Jones ◽  
P Kang ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Body Mass Index ◽  
Body Mass ◽  
Conversion Rate ◽  
Abdominal Cavity ◽  
Abdominal Fat ◽  
Obese Group ◽  
Obese Patients ◽  
Cancer Resection ◽  
Colorectal Cancer Resection

INTRODUCTION Laparoscopic surgery has become the standard for colorectal cancer resection in the UK but it can be technically challenging in patients who are obese. Patients whose body fat is mainly inside the abdominal cavity are more challenging than those whose fat is mainly outside the abdominal cavity. Abdominal fat ratio (AFR) is a simple parameter proposed by the authors to aid identification of this subgroup. MATERIALS AND METHODS All 195 patients who underwent elective, laparoscopic colorectal cancer resections from March 2010 to November 2013 were included in the study. For patients who were obese (body mass index greater than 30), preoperative staging computed tomography was used to determine AFR. This was assessed by two different, blinded observers and compared with conversion rate. RESULTS Of the 195 patients, 58 (29.7%) fell into the obese group and 137 (70.3%) into the non-obese group. The median AFR of the obese group that were converted to open surgery was significantly higher at 5.9 compared with those completed laparoscopically (3.3, P = 0.0001, Mann-Whitney). There was no significant difference in conversion rate when looking at body mass index, tumour site or size. DISCUSSION Previous studies have found body mass index, age, gender, previous abdominal surgery, site and locally advanced tumours to be associated with an increased risk of conversion. This study adds AFR to the list of risk factors. CONCLUSION AFR is a simple, reproducible parameter which can help to predict conversion risk in obese patients undergoing colorectal cancer resection.

Using the Fat-Clearing Technique to Improve Lymph Node Retrieval in Colorectal Cancer

2020 ◽  
pp. 106689692097550
Author(s):  
Chih-Ching Yeh ◽  
Chan-Feng Pan ◽  
Hung-Wei Liu ◽  
Jung-Chia Lin ◽  
Lu-Han Fang ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Lymph Node ◽  
Lymph Nodes ◽  
Lymph Node Yield ◽  
Colorectal Cancer Resection ◽  
Lymph Node Retrieval ◽  
Clearing Technique ◽  
Lymph Node Harvesting ◽  
Node Yield ◽  
Gross Examination

College of American Pathologists recommended that at least 12 lymph nodes should be harvested for adequate staging of colorectal carcinoma. Lymph node harvesting is routinely performed by a manual technique of inspection and palpation, which is laborious and time-consuming. The study assessed the influence of the improved fat-clearing technique on the number of lymph nodes retrieved from colorectal cancer specimens and the clinical efficacy. Seventy colorectal cancer resection specimens were examined and assessed by 4 pathology residents. Thirty-five specimens were handled with the conventional manual technique by inspection and palpation, and the other 35 specimens with the improved fat-clearing technique to retrieve lymph nodes. As a result, compared with the conventional manual technique, the numbers of lymph nodes retrieved with the improved fat-clearing technique were significantly increased from 14.7 ± 6.2 lymph nodes to 20.8 ± 9.0 lymph nodes per specimen ( P < .05). Besides, the percentage of cases with at least 12 lymph nodes retrieved increased from 80% to 91%. The result of this study pointed out that using the improved fat-clearing technique to process colorectal specimens could increase the lymph node yield effectively, and was effective, practical, and suitable for routine gross examination.

scholarly journals Role of lymph node yield and lymph node ratio in predicting outcomes in non-metastatic colorectal cancer

BJS Open ◽  
2018 ◽  
Vol 3 (1) ◽  
pp. 95-105 ◽  
Author(s):  
C. H. A. Lee ◽  
S. Wilkins ◽  
K. Oliva ◽  
M. P. Staples ◽  
P. J. McMurrick
Keyword(s):  
Colorectal Cancer ◽  
Lymph Node ◽  
Metastatic Colorectal Cancer ◽  
Lymph Node Ratio ◽  
Lymph Node Yield ◽  
Node Ratio ◽  
Node Yield

scholarly journals Same Surgeon: Different Centre Equals Differing Lymph Node Harvest following Colorectal Cancer Resection

2011 ◽  
Vol 2011 ◽  
pp. 1-6 ◽  
Author(s):  
M. D. Evans ◽  
S. Robinson ◽  
S. Badiani ◽  
A. Rees ◽  
J. D. Stamatakis ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Multivariate Analysis ◽  
Lymph Node ◽  
Surrogate Marker ◽  
National Standards ◽  
Case Mix ◽  
Surgical Quality ◽  
Cancer Resection ◽  
Colorectal Cancer Resection ◽  
Study Population

Introduction. The aim of this study was to examine the effect of surgeon relocation on lymph node (LN) retrieval in colorectal cancer (CRC) resection.Methods. The study population was 213 consecutive patients undergoing CRC resection by a single surgeon, at two units: unit one 110 operations (2002–2005) and unit two 103 (2005–2009). LN yields and case mix were compared.Results. Median LN harvests were significantly different between the two centres: unit 1: 13 nodes/patient and unit 2: 22 nodes/patient (). In unit one 42% of cases were LN positive and in unit two 48% (). There was no difference in case mix. Multivariate analysis identified unit () and pathologist () as independent predictors of harvest.Conclusions. A surgeon moving units can experience significantly different LN yield following CRC resection. Both units comply with national standards, but the “surgeon's results” at the two units appear to be pathologist dependent. This has implications for nodal harvest as a surrogate marker of surgical quality.

Determinants of lymph node yield in colorectal cancer: Analysis of 9,867 patients from prospective Australian databases

2008 ◽  
Vol 26 (15_suppl) ◽  
pp. 4047-4047
Author(s):  
P. Gibbs ◽  
C. Platell ◽  
N. Reiger ◽  
I. Skinner ◽  
I. Jones ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Lymph Node ◽  
Lymph Node Yield ◽  
Node Yield

Lymph node yield following colorectal cancer surgery

2010 ◽  
Vol 81 (4) ◽  
pp. 266-271 ◽  
Author(s):  
Kathryn Field ◽  
Cameron Platell ◽  
Nicholas Rieger ◽  
Iain Skinner ◽  
David Wattchow ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Lymph Node ◽  
Cancer Surgery ◽  
Colorectal Cancer Surgery ◽  
Lymph Node Yield ◽  
Node Yield
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