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1.  Transfusion-related Listeria monocytogenes infection in a patient with acute myeloid leukaemia 
Blood Transfusion  2014;12(4):611-614.
doi:10.2450/2014.0322-13
PMCID: PMC4212044  PMID: 24960659
Listeria monocytogenes; transfusion-transmitted infection; acute myeloid leukaemia
2.  Could Hypoxia increase the prevalence of thrombotic complications in Polycythemia Vera? 
Background
Thromboses represent a major cause of morbidity and mortality in Polycythemia Vera (PV) but the contributing mechanisms are not fully described.
Patients and methods
To evaluate whether environmental conditions such as altitude/hypoxia could impact thromboses history, we retrospectively analyzed thrombosis history in 71 PV patients living at an elevation of 5,000 feet or more in the SLC area (SLC) and 166 PV patients living near sea level in the Baltimore area (BLM). The SLC cohort was older with a longer disease duration. No significant differences in type of anticoagulation therapy or prothrombotic factors were present between the two cohorts. After adjusting for age, sex and disease duration, SLC patients experienced an estimated 3.9-fold increase in the odds of a history of thromboses compared to BLM patients (95% confidence interval 1.8-7.6; p = 0.0004). A history of cardiovascular event was present in 58% of the SLC patients compared to 27% of the BLM patients (p<0.0001). Before diagnosis thromboses occurred in 18% and 4% of the SLC and BLM groups respectively (p =0.003). No correlation between JAK2V617F allele burden and thrombosis was observed in this study.
Conclusion
This retrospective study suggests that even moderate hypoxia associated with 5,000 feet elevation should be considered as independent prothrombotic risk factor. This observation needs to be confirmed by prospective studies.
doi:10.1097/MBC.0b013e32835bfdb9
PMCID: PMC3796441  PMID: 23392352
3.  Sinonasal risk factors for the development of invasive fungal sinusitis in hematological patients: Are they important? 
Allergy & Rhinology  2011;2(1):6-11.
Invasive fungal sinusitis (IFS) is a highly aggressive infection that can affect hematologic patients. The classically described general risk factors, however, do not fully explain the development of IFS in a small percentage of cases. This study examined the impact of anatomic sinonasal factors and environmental factors on the development of IFS in high-risk patients. Medical records and computed tomography (CT) scans of patients admitted to our institution who were at high risk of developing IFS were retrospectively reviewed. Twenty-seven patients of 797 fulfilled the inclusion criteria. Patients affected by IFS were compared with patients not affected to identify possible sinonasal and environmental risk factors of IFS. Seven patients were excluded because of the lack of adequate radiological images. Six of the 20 eligible patients were assigned to the study group of patients affected by IFS and the remaining 14 patients were assigned to the control group. All but one case developed the infection during the summer with a significantly higher mean environmental temperature (p = 0.002). Anatomic nasal alterations were found in all patients affected by IFS and were significantly more frequent than in the control group (p = 0.014). It would be advisable to have patients with hematologic risk factors of IFS, especially during the summer period, undergo endoscopic nasal assessment. Furthermore, a CT finding of anatomic nasal alterations, such as anterior nasal septum deviation causing nasal obstruction, should increase the suspicion of IFS in case of the occurrence of nasal symptoms.
doi:10.2500/ar.2011.2.0009
PMCID: PMC3390131  PMID: 22852108
fungal infection; hematologic malignancy; invasive fungal sinusitis; nasal endoscopy; sinonasal risk factors; sinus endoscopic surgery

Results 1-3 (3)