Drug fever induced by piperacillin/tazobactam in an elderly patient with underlying human immunodeficiency virus (HIV) infection

Dexmedetomidine-Induced Fever in a 66-Year-Old Male With Pneumonia and Pleural Effusion

Drug-induced fever is a significant adverse effect as many commonly used medications can cause this. The incidence of drug fever is even higher in critical care settings because multiple medications are being administered simultaneously. This poses a serious problem in critical care settings as any new fever in these settings also implies any new infection or worsening of preexisting conditions. This may lead to a detailed investigation for the cause of fever, which can be time-consuming, invasive, costly, and may also increase the duration of stay along with an associated increase in morbidity and mortality. We want to highlight an adverse drug event through a documented case of Dexmedetomidine-induced fever in a critical care patient with multiple pathologies.

Antibiotic-induced fever in orthopaedic patients-a diagnostic challenge

INTRODUCTION

Antibiotic-induced fever is a probably underestimated complication, which may be misdiagnosed as new infection. In this study, characteristics, diagnostic approach, and outcome of antibiotic-induced fever in patients treated for musculoskeletal infections are described.

METHODS

We retrospectively reviewed all patients with antibiotic-induced fever after surgery treated at our institution from 2014 to 2017. Antibiotic-induced fever was diagnosed, if the following criteria were fulfilled: (i) central (ear) body temperature > 38.0 °C; (ii) intravenous antibiotics for > three days; (iii) exclusion of infectious or other non-infectious causes of fever; and (iv) defervescence after discontinuation of antibiotics.

RESULTS

We included 11 patients (median age 51 years) treated for infection after fracture fixation (n = 5), periprosthetic joint infections (n = 3), infection after spinal instrumentation (n = 1), and soft tissue infection (n = 2). The suspected antibiotics inducing fever were beta-lactam antibiotics (n = 9), vancomycin (n = 3), daptomycin (n = 2), clindamycin, and meropenem (n = 1 each). Additional clinical findings were reduced general condition, generalized exanthema, and rigors, whereas five patients were asymptomatic apart from a fever. Leukopenia was observed in nine patients and increase of C-reactive protein value in ten patients. Fever occurred after a median of 20 days of antibiotic treatment and resolved after a median of one day after discontinuation of the suspected antibiotic.

CONCLUSIONS

Antibiotics should be considered as the possible cause of fever in orthopaedic patients receiving antimicrobial treament whenever clinical signs of new or persisting infection are lacking. Important hints suggestive for antibiotic-induced fever are good general condition despite high temperature and progressive leukopenia. Discontinuation or change to another substance leads to prompt defervescence, preventing unnecessary diagnostic procedures and antibiotic treatment.