No genetic testing will be performed on any of the samples being obtained. The biologic samples will be under the control of the principal investigator of this research project. To protect confidentiality, all personal identifiers (i.e., name, social security number, and birth date) will be removed (de-identified) and replaced with a specific code number. The information linking these code numbers to the corresponding subjects' identities will be kept in a separate, secure location. The investigators on this study will keep the samples indefinitely. If a subject withdraws and provides the request in writing, samples collected and not already processed will be destroyed. All samples will be kept in the investigator's laboratory located in Scaife Hall, Room 812, 3550 Terrace Street.
The purpose of this study is to determine whether patients with compromised renal function (CrCl < 50mL/min) receiving intravenous voriconazole experienced any adverse effects related to serum chemistries or other imaging studies of the kidney due to the potential accumulation of the vehicle cyclodextran. t has been previously shown by a large multi-centered, prospective, randomized study that voriconazole is superior to the then gold standard amphotericin B in the treatment of patients with invasive aspergillosis - a disease with significant morbidity and mortality. In patients with these infections who have severe renal insufficiency may be denied the best therapy due to the accumulation of a diluent with unknown clinical consequences. Qualifying and or quantifying these consequences are important to these patients so that potentially life-threatening therapy should not be unduly denied.