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. 2022 Apr;45(4):522-526.
doi: 10.1007/s00270-022-03060-y. Epub 2022 Feb 15.

CT-Guided Femoral Approach for Psoas Muscle Abscess Drainage

Natsuko Hayashi  1   2 , Yoshito Takeuchi  3 , Hiroyuki Morishita  4 , Naoki Ehara  5 , Kei Yamada  2
Affiliations

CT-Guided Femoral Approach for Psoas Muscle Abscess Drainage

Natsuko Hayashi et al. Cardiovasc Intervent Radiol. 2022 Apr.

Abstract

Purpose: To evaluate the feasibility and safety of the computed tomography (CT)-guided femoral approach for draining a psoas muscle abscess (PMA).

Materials and methods: Between January 2014 and November 2018, the CT-guided femoral approach was employed for 9 abscesses in 8 patients who could not tolerate the prone position because of advanced age or other underlying conditions. A 17-gauge blunt metal needle was used to puncture the iliacus muscle below the groin under CT fluoroscopic guidance. A drainage catheter was then placed within the abscess cavity in the psoas major muscle. Technical success, clinical success, complications, the drainage therapy duration, susceptibility to antibiotics, survival, and recurrence were evaluated.

Results: The technical success rate was 100% among all nine lesions. The clinical success rate was 89% among all eight patients. One patient died of concomitant meningitis 15 days after the procedure. No patients developed therapy-related complications. The median duration of the drainage therapy was 15 days (range 6-71 days). Appropriate antibiotics based on the culture susceptibility were achieved in all patients. Four patients survived, and the remaining four died at 15 to 758 days (median, 36 days) after the procedure; no therapy-related deaths occurred. No recurrence was seen.

Conclusion: The CT-guided femoral approach seems feasible, effective, and safe for draining psoas muscle abscesses in ill patients who cannot tolerate the prone position.

Keywords: Computed tomography guidance; Femoral approach; Percutaneous drainage; Psoas muscle abscess.

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