Rima Moghnieh1, Dania Abdallah2, Lyn Awad2, Tamima Jisr3, Anas Mugharbil4, Ali Youssef4, Hani Tamim5, Samer Khaldieh6, Oula Massri7, Najat Rashini7, Youssef Hamdan7, Ahmad Ibrahim4. 1. Division of Infectious Diseases, Department of Internal Medicine, Makassed General Hospital, Tarik Al Jadida, Riad El-Solh, PO Box 11-6301, Beirut, 1107 2210, Lebanon. moghniehrima@gmail.com. 2. Pharmacy Department, Makassed General Hospital, Beirut, Lebanon. 3. Department of Laboratory Medicine, Makassed General Hospital, Beirut, Lebanon. 4. Division of Hematology-Oncology, Department of Internal Medicine, Makassed General Hospital, Beirut, Lebanon. 5. Department of Internal Medicine, American University of Beirut, Beirut, Lebanon. 6. Department of Internal Medicine, Makassed General Hospital, Beirut, Lebanon. 7. Faculty of Medical Sciences, Lebanese University, Beirut, Lebanon.
Abstract
PURPOSE: In this study, we assessed the incidence, contributing factors and outcome of prolonged neutropenia above 7 days and of bacteraemia in patients with lymphoma and multiple myeloma who underwent autologous haematopoietic stem cell transplantation (AHSCT) without antibacterial prophylaxis. METHODS: This is a retrospective chart review of 190 adult patients who underwent AHSCT between 2005 and 2015 at a Lebanese hospital. RESULTS: Neutropenia of 7 days duration and longer was documented in 66% of the patient population. Through univariate analysis, patients with lymphoma were significantly more likely to have prolonged neutropenia (≥ 7 days) compared to those with myeloma. Mucositis above grade 3, diarrhoea and fever were more likely to occur in patients with prolonged neutropenia. Bacteraemia was documented in 12.6% of the patients. Total mortality rate was 3.7%, and that attributed to bacteraemia was 12.5% in the bacteraemia subgroup. Among bacterial isolates recovered from clinical specimens (89 isolates), 70% were Gram-negative, of which 57% were fluoroquinolone susceptible. Ninety-five percent of the Gram-negative bacteria causing bacteraemia were susceptible to fluoroquinolones. CONCLUSION: Bacterial pathogens causing bacteraemia were still highly susceptible to fluoroquinolones, despite the high prevalence of fluoroquinolone-resistant strains in the general bacterial ecology. Accordingly, the pertinence of fluoroquinolone prophylaxis in the AHSCT setting warrants further investigation. Moreover, continuous surveillance of local antibiograms in this patient population has become a must in an era of preponderant antibiotic resistance.
PURPOSE: In this study, we assessed the incidence, contributing factors and outcome of prolonged neutropenia above 7 days and of bacteraemia in patients with lymphoma and multiple myeloma who underwent autologous haematopoietic stem cell transplantation (AHSCT) without antibacterial prophylaxis. METHODS: This is a retrospective chart review of 190 adult patients who underwent AHSCT between 2005 and 2015 at a Lebanese hospital. RESULTS:Neutropenia of 7 days duration and longer was documented in 66% of the patient population. Through univariate analysis, patients with lymphoma were significantly more likely to have prolonged neutropenia (≥ 7 days) compared to those with myeloma. Mucositis above grade 3, diarrhoea and fever were more likely to occur in patients with prolonged neutropenia. Bacteraemia was documented in 12.6% of the patients. Total mortality rate was 3.7%, and that attributed to bacteraemia was 12.5% in the bacteraemia subgroup. Among bacterial isolates recovered from clinical specimens (89 isolates), 70% were Gram-negative, of which 57% were fluoroquinolone susceptible. Ninety-five percent of the Gram-negative bacteria causing bacteraemia were susceptible to fluoroquinolones. CONCLUSION: Bacterial pathogens causing bacteraemia were still highly susceptible to fluoroquinolones, despite the high prevalence of fluoroquinolone-resistant strains in the general bacterial ecology. Accordingly, the pertinence of fluoroquinolone prophylaxis in the AHSCT setting warrants further investigation. Moreover, continuous surveillance of local antibiograms in this patient population has become a must in an era of preponderant antibiotic resistance.
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