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Gross Examinations Versus Frozen Section for Assessment of Surgical Margins in Oral Cancers

Oral Cavity Cancer Clinical Trial

Official title:
Intra-operative Gross Examination Versus Frozen Section for Achievement of Adequate Margin in Patients Undergoing Surgery for Oral Cavity Squamous Cell Carcinoma: A Randomized Controlled Trial

Clinical Trial Summary

Surgical margin is a significant prognostic factor in oral cavity squamous cell carcinoma (OCSCC)[1,2,3]. Intra-operative frozen section (FS) has been routinely used by the surgeons to achieve adequate surgical margins. However published literature has failed to show a conclusive benefit of FS in improving oncological outcomes(4-7). The overall identification rate of the inadequate margins by FS is variable with figures in the literature ranging from25-34%.(8-10) Revision of margins based on FS is widely practiced in centers where facility for FS is available. However this has not shown to significantly improve local control when compared to cases in which FS was not utilized , in a comparative study done at Tata memorial Hospital(TMH) (5) More-over FS is a costly procedure, and sparsely available in resource- poor countries. In a recently conducted retrospective study of 1237 patients conducted at TMH, the cost benefit ratio of FS for assessment of margin is as low as 12:1(11). In another prospective study performed at the same center , investigators found that gross examination (GE) of margins by the surgeons was as effective as FS, and achievement of gross 7mm margin all around the tumor obviated the need for FS (12). In a recent meta-analysis of 8 studies that looked at the utility of frozen section and had uniformity in frozen section analysis and definition of close margins, they concluded that revision of margins based on FS does not improve oncological outcomes and further prospective studies are needed to explore this contentious issue (13). With this background, a prospective RCT is planned to explore if gross examination by surgeon and subsequent revision of margin (if necessary) is an equally effective alternative to Frozen section based revision in a randomized controlled trial.

Clinical Trial Description

n/a

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT04809324
Study type Interventional
Source Tata Memorial Centre
Contact Pankaj Chaturvedi, MS
Phone +91 02224177189
Email chaturvedi.pankaj@gmail.com
Status Recruiting
Phase N/A
Start date November 15, 2021
Completion date June 2028
View Details
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