{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,17]],"date-time":"2026-06-17T16:00:13Z","timestamp":1781712013435,"version":"3.54.5"},"reference-count":22,"publisher":"Mark Allen Group","issue":"Sup6","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Wound Care"],"published-print":{"date-parts":[[2024,6,1]]},"abstract":"<jats:p> The standard treatment for an infected pressure ulcer (PU) with osteomyelitis is debridement, wound coverage and antibiotic administration. However, systemic administration of antibiotics in patients with osteomyelitis is controversial, and the optimal treatment duration for chronic osteomyelitis has not been standardised. We report a case of sudden severe thrombocytopenia induced by piperacillin\/tazobactam (PIPC\/TAZ) in a patient with PU-related osteomyelitis. A 57-year-old male patient with paraplegia, using a wheelchair full-time, presented to our plastic surgery department with infection of a stage IV hard-to-heal ischial PU. We surgically debrided the necrotising tissue and raised an ipsilateral biceps femoris musculocutaneous propeller flap for wound coverage. Polymicrobial infections, including Pseudomonas aeruginosa, were detected in the bone biopsy sample; therefore, systemic PIPC\/TAZ was administered for the osteomyelitis. Unexpectedly, during the next 12 days of antibiotic administration, the patient's platelet count acutely dropped to 1\u00d710<jats:sup>3<\/jats:sup>\/\u03bcl over three days. Based on a series of examinations, PIPC\/TAZ was suspected to be the most likely cause of the severe thrombocytopenia. After drug discontinuation, the thrombocytopenia gradually improved. PIPC\/TAZ is one of the most widely used antibiotic combinations in the plastic surgery field; it is conventionally administered for hard-to-heal wounds such as PUs and diabetic foot. The present case suggests that surgeons must take special precautions for patients undergoing PIPC\/TAZ treatment. In this report, PIPC\/TAZ-induced thrombocytopenia and the efficacy of antibiotic treatment for PU-related osteomyelitis are discussed in light of the available literature. <\/jats:p>","DOI":"10.12968\/jowc.2021.0074","type":"journal-article","created":{"date-parts":[[2024,6,6]],"date-time":"2024-06-06T16:29:17Z","timestamp":1717691357000},"page":"S25-S30","source":"Crossref","is-referenced-by-count":5,"title":["Piperacillin\/tazobactam-induced sudden severe thrombocytopenia in a patient with a pressure ulcer: a case report"],"prefix":"10.12968","volume":"33","author":[{"given":"Solji","family":"Roh","sequence":"first","affiliation":[{"name":"Department of Plastic Surgery, Asahi General Hospital, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kohei","family":"Hashimoto","sequence":"additional","affiliation":[{"name":"Department of Plastic Surgery, Asahi General Hospital, 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