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Figure 1 | Trials

Figure 1

From: Transversus abdominis plane block versus perioperative intravenous lidocaine versus patient-controlled intravenous morphine for postoperative pain control after laparoscopic colorectal surgery: study protocol for a prospective, randomized, double-blind controlled clinical trial

Figure 1

Trial design chart. ASA, American Society of Anaesthesiologists; NRS, numeric rating scale; PACU, postoperative anesthesia care unit; PCIA, patient-controlled intravenous analgesia; TAP, transversus abdominis plane.

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Trials

ISSN: 1745-6215