Publications by authors named "Roger Priore"

8 Publications

  • Page 1 of 1

A community education program on atrial fibrillation: implications of pulse self-examination on awareness and behavior.

J Stroke Cerebrovasc Dis 2004 Sep-Oct;13(5):208-13

Department of Neurology, School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, New York. USA.

Objectives: We postulated that community groups with older demographics could be taught to find and characterize their pulse rhythm for the presence of an irregular pulse (IP), which may indicate atrial fibrillation, a major risk factor for stroke.

Methods: We conducted 281 community group education sessions involving 6203 attendees. Awareness objectives were to demonstrate that: (1) group education was effective in establishing awareness that an IP may indicate atrial fibrillation; and (2) this message was retained at follow-up. Behavioral objectives were to: (1) assess ability of participants to find and characterize their pulse rhythm; (2) regularly monitor pulse rhythm; and (3) act with medical appropriateness upon detecting an IP.

Results: Of 6203 attendees, 4322 were older than 50 years and consented to participate. Of these consenting participants, 73.2% found their radial pulse and 91% characterized the rhythm (regular, 72.1%; irregular, 11%; undetermined, 7.9%). Telephone follow-ups on 1839 participants were performed at 30 to 60 days to assess durability of message and action taken. At follow-up, 89.1% remembered that an IP is potentially a risk factor for stroke, and 70.3% had taken their pulse since the program. Of those who discovered a new IP, 38% sought medical assessment.

Conclusion: Community education programs focusing on pulse self-examination are effective in improving awareness that an IP may be a surrogate indicator of stroke risk. Such programs may lead to improved awareness of atrial fibrillation, subsequent behavioral changes, and stroke prevention.
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April 2008

A multifactorial intervention to reduce prevalence of delirium and shorten hospital length of stay.

J Am Geriatr Soc 2005 Jan;53(1):18-23

Department of Medicine, State University of New York at Buffalo, Buffalo, USA.

Objectives: To improve outcomes for cognitively impaired and delirious older adults.

Design: Pretest, posttest.

Setting: A university-affiliated hospital.

Participants: Physicians and nurses in the emergency department (ED) and on an acute geriatric unit (AGU).

Intervention: Multifactorial and targeted to the processes of care for cognitively impaired and delirious older adults admitted to medicine service from the ED.

Measurements: Prevalence of delirium, admission to AGU, psychotropic medication use, hospital length of stay.

Results: Patient characteristics did not differ between baseline and the two outcome cohorts 4 and 9 months postintervention. Prevalence of delirium was 40.9% at baseline, 22.7% at 4 months (P<.002), and 19.1% at 9 months (P<.001). More delirious patients were admitted to the AGU than to non-AGU units at 4 months (P<.01) and 9 months (P<.01). Postintervention medication use in the hospital differed from baseline. Antidepressant use was greater at 4 months (P<.05). Benzodiazepine and antihistamine use were lower at 9 months (P>.01). Antidepressant and neuroleptic use were higher (P<.02) and antihistamine use was lower (P<.02) at 4 months on the AGU than for the baseline group. Benzodiazepine (P<.01) and antihistamine (P<.05) use were lower at 9 months. Each case of delirium prevented saved a mean of 3.42 hospital days.

Conclusion: A multifactorial intervention designed to reduce delirium in older adults was associated with improved psychotropic medication use, less delirium, and hospital savings.
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January 2005

Construct validity and frequency of euphoria sclerotica in multiple sclerosis.

J Neuropsychiatry Clin Neurosci 2004 ;16(3):350-6

State University of New York (SUNY) Buffalo School of Medicine and Biomedical Sciences, Buffalo General Hospital, Buffalo, New York, USA.

Using the Neuropsychiatric Inventory (NPI), we studied euphoria and other behavioral changes in 75 consecutive, unselected multiple sclerosis (MS) patients and 25 healthy controls. We also assessed disease duration, clinical course, physical disability, personality, depression, insight, cognition, and caregiver distress. Factor analysis identified a cluster of symptoms--labeled euphoria/disinhibition--similar to the euphoria sclerotica syndrome originally described by Charcot and others. The euphoria/disinhibition factor score was elevated in 9% of patients and associated with secondary-progressive course, low agreeableness, poor insight, impaired cognition, and high caregiver distress. Thus, we used the NPI to validate the euphoria syndrome in multiple sclerosis (MS) and determined its frequency, and its neurological and psychological correlates.
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November 2004

The effects of Escherichia coli capsule, O-antigen, host neutrophils, and complement in a rat model of Gram-negative pneumonia.

FEMS Microbiol Lett 2003 Sep;226(2):355-61

Department of Medicine, Division of Infectious Diseases, 3435 Main St., Biomedical Research Building, Room 141, Buffalo, NY 14214, USA.

Gram-negative enteric bacilli are agents of life-threatening pneumonia. The role of the bacterial capsule and O-antigen moiety of lipopolysaccharide in the pathogenesis of Gram-negative pneumonia was assessed. In a rat model of pneumonia the LD(50) of a wild-type extraintestinal pathogenic Escherichia coli strain (CP9) was significantly less than its isogenic derivatives deficient in capsule (CP9.137), O-antigen (CP921) or both capsule and O-antigen (CP923) (P< or =0.003). Studies using complement depleted or neutropenic animals established that both neutrophils and complement are important for the pulmonary clearance of E. coli. Data from these studies also support that capsule and O-antigen serve, at least in part, to counter the complement and neutrophil components of the pulmonary host defense response. Lastly, the contribution of E. coli versus neutrophils in causing lung injury was examined. Findings suggest that E. coli virulence factors and/or non-neutrophil host factors are more important mediators of lung injury than neutrophils. These findings extend our understanding of Gram-negative pneumonia and have treatment implications.
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September 2003

Prognostic significance of p53 mutation and p53 overexpression in advanced epithelial ovarian cancer: a Gynecologic Oncology Group Study.

J Clin Oncol 2003 Oct;21(20):3814-25

Division of Gynecologic Oncology, Duke University Medical Center, Durham, NC, USA.

Purpose: The prognostic significance of p53 mutations and overexpression in advanced epithelial ovarian cancers was examined in primary tumors from 125 patients participating in a Gynecologic Oncology Group randomized phase III treatment protocol.

Patients And Methods: Mutational analysis of p53 was performed in RNA or genomic DNA extracted from frozen tumor. An immunohistochemistry assay was used to detect p53 overexpression in fixed tumor.

Results: There were 81 patients (74%) with a single mutation, three patients (3%) with two mutations, and 25 patients (23%) lacking a mutation in exons 2 to 11 of p53. Although most mutations occurred within exons 5 to 8, mutations outside this region were observed in 11% of patients. A mutation in exons 2 to 11 of p53 was associated with a short-term improvement in overall survival and progression-free survival. Adjusted Cox modeling demonstrated a 70% reduction in risk of death (P =.014) and a 60% reduction in risk of disease progression (P =.014) for women with such mutations. However, these striking risk reductions increased over time (P <.02) and eventually disappeared with longer follow-up. Overexpression of p53 was observed in 55 patients (100%) with only missense mutation(s), seven patients (32%) with truncation mutations, and eight patients (40%) lacking a mutation in exons 2 to 11. Overexpression of p53 was associated with tumor grade but not with patient outcome.

Conclusion: Alterations in p53 are a common event in advanced epithelial ovarian cancer. A mutation in p53, but not overexpression of p53, is associated with a short-term survival benefit. Additional studies are required to define the roles that p53 plays in regulating therapeutic responsiveness and patient outcome.
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October 2003

Follicular response and pregnancy among infertile women undergoing ovulation induction and intrauterine insemination.

Fertil Steril 2003 Aug;80(2):328-35

Department of Social and Preventive Medicine, University at Buffalo, Buffalo, New York 14222, USA.

Objective: To determine the relationship between ovarian follicular response (number and diameter of follicles) to ovulation induction agents and pregnancy.

Design: Retrospective cohort study.Hospital-based center of reproductive medicine.

Patient(s): Three hundred twenty-two clinically diagnosed infertile couples undergoing 1483 cycles of ovulation induction and IUI. Oral and injectable fertility drugs were administered for 2-10 cycles; ultrasound follicular measurements were recorded around time of ovulation; hCG was administered when follicles were 18-20 mm or more in diameter; IUI was performed 36-40 hours after administration of hCG.

Main Outcome Measure(s): A first positive pregnancy test as indicative for conception. Women with follicular diameters >or=20 mm were less likely to become pregnant as compared to women with diameters between 15.00 and 19.99 mm (risk ratio [RR] = 0.58, 95% confidence interval [CI] = 0.35, 0.97). Women >or=30 years of age were half as likely to become pregnant as compared to women <30 years (RR = 0.51, 95% CI = 0.30, 0.85). Likelihood of pregnancy increased by 21% for each prior pregnancy (RR = 1.21, 95% CI = 1.00, 1.47).

Conclusion(s): Maternal age, gravidity, and follicular diameters around the time of insemination are prognostic factors in the likelihood of pregnancy.
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August 2003

Impact of losses to follow-up on diet/alcohol and lung cancer analyses in the New York State Cohort.

Nutr Cancer 2002 ;42(1):41-7

Department of Nutritional Sciences, Rutgers University, New Brunswick, NJ 08901-2882, USA.

The main objective of the study was to evaluate whether passive surveillance methods can be used in cohort studies without a significant distortion of risk estimates when the active follow-up of every participant is not possible. A nested case-control study including 525 lung cancer cases and 525 controls was conducted among participants of the New York State Cohort Study (n = 57,968 men and women), which allowed the active follow-up of a sample of the cohort and the assessment of the effect of losses to follow-up. Although there were some differences with respect to dietary intake between controls lost to follow-up and those located, the results of the nested case-control study including and excluding losses to follow-up were comparable. Moreover, the results derived from the passive and the active follow-up data were similar. Our findings lent credence to passive follow-up methods and suggested that losses to follow-up did not compromise the validity of the study. Although attempts to trace every participant are preferable in a cohort study, passive surveillance may yield unbiased risk estimates when a rare disease is being investigated.
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January 2003

Frontal cortex atrophy predicts cognitive impairment in multiple sclerosis.

J Neuropsychiatry Clin Neurosci 2002 ;14(1):44-51

Department of Neurology, State University of New York at Buffalo School of Medicine, Buffalo, USA.

The association between regional measures of cortical atrophy and neuropsychological (NP) dysfunction was studied in 35 multiple sclerosis (MS) patients. Patients underwent neurological examination, MRI, and NP testing. Blind quantitative MRI analysis yielded total T(2) lesion area (TLA) and third ventricle width (3VW). Cortical atrophy, rated by blind visual inspection, was more extensive in superior frontal and parietal cortices than in other regions. No MRI measures were correlated with depression scores. TLA and 3VW were significantly correlated with each NP test. Cortical atrophy measures for bilateral superior frontal cortex were retained in regression models predicting impairments in verbal learning, spatial learning, attention, and conceptual reasoning. The authors conclude that cerebral atrophy predicts NP impairment while accounting for the influence of TLA or 3VW. Regions of cortex most susceptible to atrophic and cognitive changes in MS are the right and left superior frontal lobes.
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May 2002