Leonard J. Rossoff
Albert Einstein College of Medicine
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Featured researches published by Leonard J. Rossoff.
The American Journal of Medicine | 1993
Leonard J. Rossoff; Sing Lam; Eileen Hilton; Michael Borenstein; Henry D. Isenberg
Abstract purpose: To identify the type, rate, burden, and pattern of contamination of boxed, clean but nonsterile gloves in our intensive care unit (ICU). materials and methods: The fingertips of the first, middle, and last two pairs of gloves in 29 boxes in routine service in our ICU were cultured. The first of each of these three sets were removed aseptically, the second in a routine fashion. results: We found 16 of 29 (55%) first pairs removed aseptically to be contaminated with a mean bioburden of 1.8 colony-forming units (CPU). The percentage contamination and bioburden did not change significantly with position in the box. Use of routine compared with strict aseptic technique increased the rate of contamination by only 11% (95% confidence interval [CI] -0.05 to +0.27 percentage points) and bioburden by only a mean of 3.4 colonies per pair (CI − 0.51 to +4.90 CPU). The length of the time the boxes were open and in use was unrelated to whether the final aseptically removed pair was sterile or contaminated. The predominant organisms were coagulase-negative staphylococcL conclusions: One half the pairs of latex examination gloves in our ICU were sterile despite repeated barehanded access to the boxes. Those contaminated exhibited a small bioburden of low pathogenic potential. No pattern of contamination or unsafe duration of box use were observed. The use of boxed, clean, nonsterile gloves appears safe for routine use in an ICU.
Clinical Infectious Diseases | 2001
Anita Karim; Shahid Ahmed; Leonard J. Rossoff; Rina Siddiqui; Harry Steinberg
Levofloxacin is one of the most commonly prescribed antibiotics for both inpatient and outpatient care of respiratory tract infection. It is generally well tolerated, and it has an excellent safety profile. We report a case of severe acute liver toxicity that apparently complicated intravenous administration of levofloxacin, which resolved after discontinuation of the drug.
Clinical Infectious Diseases | 2004
Boris I Medarov; Anita K. Siddiqui; Tahir Mughal; Mark Moshiyakhov; Leonard J. Rossoff
Sixty percent of infections with non-pneumophila species of Legionella are caused by Legionella micdadei. Although diarrhea is a common symptom of legionellosis, including that due to L. micdadei infection, severe, life-threatening diarrhea is rare. We describe a patient with profound secretory diarrhea (secretion rate, up to 8 L/day) that was secondary to culture-proven L. micdadei pneumonia. In addition, a 3-cm pulmonary nodule was detected, which completely resolved after proper treatment for Legionella infection. Resolving pulmonary nodules have been previously reported in association with treatment of L. micdadei infections.
American Journal of Clinical Oncology | 2002
George S. Stoica; Harly E. Greenberg; Leonard J. Rossoff
Fludarabine monophosphate is a purine nucleoside antimetabolite with efficacy in the treatment of lymphoproliferative disorders and chronic lymphocytic leukemia. It is the 2-fluoro, 5′ phosphate derivative of 9-&bgr;-D-arabinofuranosyl adenine (ara-A, vidarabine) and the mechanism of action is through inhibition of DNA synthesis and the cytolytic effects through the induction of endonuclease-independent apoptosis.
Leukemia & Lymphoma | 2005
Shahid Ahmed; Rabia K. Shahid; Rola Rimawi; Anita K. Siddiqui; Leonard J. Rossoff; Cristina P Sison; Harry Steinberg; Kanti R. Rai
In order to determine variables that correlate with malignant pleural effusion and mortality in patients with lymphoproliferative disorders and pleural effusion, a retrospective study was performed. Clinical data of hospitalized patients with a lymphoid malignancy and pleural effusion who underwent thoracentesis from January 1993 to December 2002 were collected. A logistic regression analysis was carried out to determine prognostic variables that predict malignant pleural effusion and hospital mortality. There were 86 patients who were admitted on 91 occasions. The median age was 70 years (range 4 - 92) and the male:female ratio was 44:42. Sixty-four patients (74%) had advanced disease, 43 (50%) had received prior chemotherapy and 9 (10%) were in remission. Of 91 cases of pleural effusions, 44 (48%) were bilateral, 80 (88%) were exudates and 48 (53%) were due to malignant involvement of pleura. In multivariate analysis, symptomatic pleural effusion (odds ratio 10.3, 95% confidence interval 1.7 - 98.3), pleural fluid mesothelial cell count < 5% (odds ratio 8.0, 95% confidence interval 1.4 - 58.2), pleural fluid:serum lactate dehydrogenase (LDH) > or =1 (odds ratio 6.4, 95% confidence interval 1.2 - 45.6) and pleural fluid lymphocyte percentage > or =50 (odds ratio 6.4, 95% confidence interval 1.2 - 50) were significantly correlated with malignant effusion. A secondary cancer (odds ratio 11.9, 95% confidence interval 2.3 - 88.8), pleural fluid:serum LDH > or =1 (odds ratio 10.9, 95% confidence interval 2.6 - 64.9), and pneumonia (odds ratio 6.4, 95% confidence interval 1.7 - 28.6) were significantly correlated with hospital mortality. In conclusion, malignant pleural effusion is the common etiology of pleural effusion in patients with lymphoid malignancy. Many clinical and cytochemical markers have discriminatory values in identifying malignant effusion. A high pleural fluid to serum LDH level correlates with malignant pleural involvement and hospital mortality.
Current Therapeutic Research-clinical and Experimental | 1995
Leonard J. Rossoff; Eileen Hilton; Candace Smith; Henry D. Isenberg; Maureen McKeon Simme
The efficacy and tolerability of ampicillin/sulbactam versus cefuroxime axetil administered intravenously in the treatment of community-acquired lower respiratory tract infections in patients requiring hospitalization were assessed in a randomized study. A total of 103 adult patients were enrolled, with 49 receiving ampicillin/sulbactam and 54 receiving cefuroxime. Twenty-five of the 49 patients in the ampicillin/sulbactam group and 22 of the 54 patients in the cefuroxime axetil group were included in the statistical analyses. No statistically significant differences were observed between the two groups with regard to demographics or clinical, radiologic, and bacteriologic response rates. There was no apparent difference in the incidence of adverse effects.
Chest | 1994
Marlene Schwartz; Leonard J. Rossoff
Chest | 1997
Israel M. Samson; Leonard J. Rossoff
Chest | 1998
Joshua Rice; Scott L. Roth; Leonard J. Rossoff
Infectious Diseases in Clinical Practice | 1993
Sing Lam; Eileen Hilton; Michael Esposito; Candace Smith; Leonard J. Rossoff