What is the risk of local recurrence in a high grade muscle invasive bladder cancer (MIBC) s/p incomplete TURBT treated with concurrent chemoradiation compared to a complete TURBT?

One source I’m aware of that could shed light on this specific question is a 2017 publication from MGH (Giacalone et al., PMID 28081860), reporting the outcomes of 475 patients with T2-4a N0 M0 bladder cancer treated with various protocols from 1986-2013. Not all patients had high-grade tumors, but ...