Perianal block with ropivacaine as a supplement to anaesthesia in proctological surgery: double-blind randomized placebo-controlled trial (PERCEPT).

What Was Tested

The paper reports a study of Copper (Supplement), published as a randomized controlled trial.

Who Took Part

According to the abstract, 2019, patients were involved.

The age groups tagged for this paper are adults, middle-aged adults and older adults, both men and women.

Between January 2018 and April 2019, patients were allocated to receive a perianal block with ropivacaine or placebo as an adjunct to anaesthesia.

Patients, surgeons and assessors were blinded.

How the Study Was Run

In design terms this was a randomized, double-blind and placebo-controlled study.

Because people in this Copper (Supplement) study were split into groups at random, differences between the groups are less likely to reflect who happened to join each one.

Neither the patients nor the staff measuring them knew who was on Copper (Supplement), so expectations could not easily colour the readings.

The comparison arm used a placebo, so changes seen with Copper (Supplement) could be set against what happens without it.

The primary outcome was pain measured on a numerical rating scale (NRS) after 24 h.

Secondary outcomes were need for rescue analgesia, and pain after 1, 2, 3, 6 and 12 h.

What Was Measured

Topics PubMed links to this paper include Anal Canal, Anesthesia, Local, Anesthetics, Local, Nerve Block, Pain Measurement, Postoperative Pain and Rectum.

What This Means in Plain Language

The paper is a randomized, double-blind and placebo-controlled study of Copper (Supplement) in 2019, patients.

With several hundred people or more, it is a fairly large study for this kind of research.

Its findings take up roughly 9 sentences of the abstract and are left out here on purpose; the source paper is the place to read them.

The publication is from 2020 (The British journal of surgery), a journal based in England.

More context: the Copper (Supplement) compound page, all human trials.