Abstract
Aim: Patients with rheumatic heart disease (RHD) are committed to lifelong secondary prophylaxis with antibiotics. The study was conducted to evaluate the effect of cold needle to decrease the pain associated with this injection. Material and methods: A randomised crossover single-blinded study was conducted among 100 patients receiving penicillin with room-temperature needle and cold needle (0–2oC) in random order. Pain was evaluated using numerical pain rating scale and bio-physiological measures. Results: There was a significant decrease in subjective pain score when cold needle was used as compared to room-temperature needle (3.37 ±1.75 vs 5.58 ±1.68, P≤0.0001). Conclusion: Cold needle decreased pain perception of patients receiving intramuscular injection of benzathine penicillin. Pain-reducing technique may be useful in improving compliance of patients receiving benzathine penicillin.
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