Pulsed electromagnetic fields for post-appendicectomy pain management: a randomized, placebo-controlled trial

Area of Science:

• Medical Research
• Clinical Trials
• Pain Management

Background:

• The efficacy of pulsed electromagnetic field (PEMF) therapy for managing postoperative pain is inconclusive due to varied research findings.
• This study investigated PEMF's effectiveness in Asian patients undergoing appendectomy, focusing on pain and analgesic consumption.

Purpose of the Study:

• To evaluate the impact of PEMF as an adjunct therapy on postoperative pain intensity.
• To assess the effect of PEMF on the requirement for intravenous analgesic use following appendectomy.

Main Methods:

• A double-blinded, randomized trial involving adult patients diagnosed with acute appendicitis.
• Patients received either an active-PEMF device or an inactive placebo device post-surgery.
• Primary outcomes included 12-hour cumulative pain scores (Visual Analogue Scale) and secondary outcomes involved total intravenous fentanyl use.

Main Results:

• No significant difference in 12-hour cumulative pain scores (at rest or on movement) was observed between the PEMF and placebo groups.
• Total intravenous fentanyl consumption within the first 12 postoperative hours did not differ significantly between the groups.
• Statistical analysis (Wilcoxon rank sum test) confirmed the lack of significant differences for both primary and secondary outcomes.

Conclusions:

• Pulsed electromagnetic field (PEMF) therapy demonstrated no superiority over placebo in managing pain up to 12 hours after appendectomy.
• The study could not corroborate previously reported positive effects of PEMF on postoperative pain and analgesia.
• Further research may be needed to clarify the role, if any, of PEMF in surgical pain management.