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Z Khoury

Publications and source records attributed to Z Khoury.

20 records · Page 2Linked to original sources

[Persistent neutrophilic meningitis in a patient with the acquired immunodeficiency syndrome].

Persistent neutrophilic meningitis is rarely found and it is characterized by predominance of the number of neutrophils in samples of C SF (cerebrospinal fluid) from the patient after seven days of treatment. The above patient in HIV positive; he has developed fever and mental disorder for 4 months and has presented neutrophilic pleocytosis in analysis of CSF for more than 5 months. Since the beginning or the treatment he has taken antituberculous drugs and corticosteroids. For 3 months, the serologic evaluation, smears and cultures were negative. On the 60th day in hospital, the investigation of acid-fast bacilli in CSF was positive and culture confirmed the presence of Mycobacterium tuberculosis resistant to isoniazid. Several factors that may have caused this uncommon development were discussed: the disturbance of cell-mediated immunity, mainly in release of IL 8 and TNF, the simultaneous use of medicines that could alter the CSF concentration of antituberculous drugs, and the increasing number of multiresistant strains.

AIDS-Related Opportunistic Infections↗

The effect of prophylactic nifedipine on renal function in patients administered contrast media.

STUDY OBJECTIVE: To determine if prophylaxis with nifedipine could decrease the frequency of contrast medium-induced renal impairment. DESIGN: Prospective, randomized clinical trial. SETTING: A university-affiliated hospital. PATIENTS: Patients undergoing scheduled radiologic examinations involving infusion of contrast media. INTERVENTIONS: Forty-two patients were randomized to receive nifedipine 10 mg orally 1 hour before the imaging procedure, and 43 to receive no treatment. MEASUREMENTS AND MAIN RESULTS: Baseline serum creatinine levels were compared with maximum levels 24 and 48 hours after administration of contrast medium. No statistically significant difference was seen in either the mean change or mean percentage change in serum creatinine between the control and nifedipine groups. The mean changes in serum creatinine were +7.4 mumol/L in the control group and +2.7 mumol/L in the nifedipine group (p = 0.33); the mean percentage changes were +10.2% and +4.8%, respectively (p = 0.54). CONCLUSION: Regardless of statistical analysis, it is unlikely that elevations in serum creatinine of this magnitude (< 0.1 mg/dl) are of clinical significance. We therefore conclude that prophylactic nifedipine is not clinically beneficial in preserving renal function in patients receiving contrast medium and that the agent should not be routinely administered for this purpose.

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