Zahid Akbar, Khalid Nizami, Fatima Ahmad, Mahmood Alam.
Incidence and Aetiology of Intramuscular Injection Abscess.
Pak J Med Health Sci Jan ;8(3):720-2.

Aim: To find out the incidence and etiology of intramuscular injection abscess either in deltoid or gluteal region and secondly to disseminate the awareness regarding intramuscular injection technique. Methods: All the patients included in this study who presented in surgical department at Avicenna Hospital in the period of 1st Jan 2013 to 30th June 2014, with intramuscular injection abscess either gluteal or deltoid regions and were treated by Incision and drainage under general or local anesthesia. Results: A total 64 patients were admitted in surgical department with H/O intramuscular injection who had planned incision and drainage of abscess. Eighteen (28.120 %) patients range from 1-10 years. Four (6.25%) patients were from 11-20 years. Thirteen (20.31%) patients were 21-30 years. Twelve (18.75%) patients were 31-40 years. Eight (12.50%) patients were 41-50 years. Seven (10.93%) patients were 51-60 years. Two (3.12%) patients were above 60 years of age. All age group patients were suffering from injection abscess. All these patients had received injections from some local practitioners. The cause may be wrong techniques or the use of vials with multiple pricks and unsterile syringes. All cases had unilateral abscess. Thirty eight (59.38%) patients were having intragluteal abscess out of which twenty were female and eighteen were male. Twenty six patients (40.62%) had abscess on arms. Improper intramuscular injection techniques and various subcutaneous thicknesses. According to sex and body weight are the main contributing factors in subcutaneous rather than intramuscular injection which lead to abscess formation after intragluteal and deltoid injection.

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