e-ISSN: Pending
Negative / Null Result ReportOpen accessMedicine

Effects of Ropivacaine-Based Thoracic Paravertebral Block versus Erector Spinae Plane Block on Quality of Recovery in Laparoscopic Colorectal Cancer Surgery: A Randomized Controlled Trial.

Shi S; Liang Y; Liu T; Wang J; Xu X; Cheng A; Wang H; Hu J · 2026 · Drug design, development and therapy

WASTE classifies this as Negative / Null Result Report · AI classification, approximate

The study found no significant effect — useful as a negative control or null benchmark for your own design.

Abstract (excerpt)

Background Colorectal cancer remains a leading cause of cancer-related mortality worldwide. Postoperative pain can impair recovery. Thoracic paravertebral block (TPVB) and erector spinae plane block (ESPB) are regional analgesic techniques…

Excerpt shown for reference under fair use — read the full paper at the publisher.

About to run something similar?

Run an AI Precheck on your own design to catch failure modes like this one before you spend the time. Your first desk check is free.

WASTE indexes this work — it does not host or republish it. Failure-type classification is automated and approximate.

Metadata source: Europe PMC · DOI 10.2147/dddt.s581084