4 results on '"Lockwood B"'
Search Results
2. Visitor Restrictions During the COVID-19 Pandemic and Increased Falls With Harm at a Canadian Hospital: An Exploratory Study.
- Author
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Shennan S, Coyle N, Lockwood B, and DiDiodato G
- Subjects
- Humans, Male, Female, Retrospective Studies, Aged, Middle Aged, Canada epidemiology, Pandemics, SARS-CoV-2, Patient Isolation statistics & numerical data, Aged, 80 and over, Hospitalization statistics & numerical data, COVID-19 epidemiology, COVID-19 prevention & control, Accidental Falls statistics & numerical data, Accidental Falls prevention & control, Visitors to Patients statistics & numerical data
- Abstract
Background: Falls with harms (FWH) in hospitalized patients increase costs and lengths of stay. The COVID-19 pandemic has resulted in more FWH. Additionally, the COVID-19 pandemic has resulted in increased patients in isolation with fewer visitors. Their relationship with falls has not been previously studied., Methods: This is a retrospective, single-site, 12-month before pandemic-12-month after pandemic, observational study. Multiple logistic regression analysis was used to model FWH outcome and associations with isolation and visitor restrictions., Results: There were 4369 isolation events and 385 FWH among 22,505 admissions during the study period. Unadjusted analysis demonstrated a FWH risk of 1.33% (95% CI 0.99, 1.67) in those who were placed in isolation compared to 1.80% (95% CI 1.60, 2.00) in those without an isolation event ( χ2 = 4.73, P = 0.03). The FWH risk during the different visitor restriction periods was significantly higher compared to the prepandemic period ( χ2 = 20.81, P < 0.001), ranging from 1.28% (95% CI 1.06, 2.50) in the prepandemic period to 2.03% (95% 1.66, 2.40) with no visitors permitted (phase A) in the pandemic period. After adjusting for potential confounders and selection bias, only phase A visitor restrictions were associated with an increased FWH risk of 0.75% (95% CI 0.32, 1.18) compared to no visitor restrictions., Interpretation: Our results suggest a moderately strong association between hospitalized patient FWH risk and severe visitor restrictions. This association was muted in phases with even minor allowances for visitation. This represents the first report of the adverse effects of visitor restriction policies on patients' FWH risks., Competing Interests: The authors disclose no conflict of interest., (Copyright © 2024 The Author(s). Published by Wolters Kluwer Health, Inc.)
- Published
- 2024
- Full Text
- View/download PDF
3. Stress infrared telethermography is useful in the diagnosis of complex regional pain syndrome, type I (formerly reflex sympathetic dystrophy).
- Author
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Gulevich SJ, Conwell TD, Lane J, Lockwood B, Schwettmann RS, Rosenberg N, and Goldman LB
- Subjects
- Adult, Aged, Female, Hand physiology, Humans, Image Processing, Computer-Assisted, Infrared Rays, Leg physiology, Male, Middle Aged, Predictive Value of Tests, Reflex Sympathetic Dystrophy physiopathology, Skin Temperature physiology, Telemetry instrumentation, Telemetry methods, Thermography methods, Reflex Sympathetic Dystrophy diagnosis, Stress, Physiological physiopathology, Thermography instrumentation
- Abstract
Objective: To assess the sensitivity, specificity, and predictive value (PV) of stress infrared telethermography (IRT) in the complex regional pain syndrome, type I (CRPS-I)., Methods: One hundred eighty-five consecutive patients (47 men, 138 women) with 205 pairs of chronically painful limbs (upper, lower, or both) were examined by pain specialists in neurology, physiatry, and anesthesia, who then reached a consensus diagnosis. A clinical diagnosis of CRPS-I required at least two of the following observations: burning pain, vasomotor changes, diaphoresis, trophic changes, allodynia. Patients with only one criterion were classified as possible CRPS-I; those with none were judged not to have CRPS-I. Patients and 24 asymptomatic control subjects underwent stress IRT, which was considered positive for CRPS-I if it showed three of the following: quantitative thermal emission of > or = 1.00 degree C, abnormal distal thermal gradient patterns, presence of a "thermal marker," and abnormal response to functional cold water autonomic stress testing., Results: By clinical criteria, CRPS-I was diagnosed in 73 pairs of limbs; not CRPS-I was diagnosed in 70; and 62 pairs had possible CRPS-I. Excluding possible CRPS-I cases, there were 5 false-negative stress IRTs (sensitivity 93%) and 7 false-positive results (specificity 89%). Based on estimated 50% prior probability for our population, the positive PV is 90% and the negative PV 94%. None of the control subjects exhibited thermographic evidence of CRPS-I., Conclusion: Stress IRT is a sensitive and specific indicator of CRPS-I.
- Published
- 1997
- Full Text
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4. Problems with the laboratory identification and evaluation of coagulase-negative staphylococci.
- Author
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Smith JM, van der Linden AJ, and Lockwood BM
- Subjects
- Humans, Staphylococcus enzymology, Staphylococcus pathogenicity, Staphylococcus epidermidis classification, Coagulase analysis, Staphylococcal Infections microbiology, Staphylococcus classification
- Abstract
During a 105 day period in mid 1984, 796 isolates of coagulase-negative staphylococci were recovered from routine specimens handled in the Microbiology Laboratory, Dunedin Hospital. Of these isolates 504 (63.3%) were from wounds, 170 (21.4%) from urines, 58 (7.3%) from intravascular catheter tips, 44 (5.5%) from blood cultures and 20 (2.5%) from sputa. Presumptive identification of 315 consecutive isolates revealed 175 (55.6% of total) strains of Staphylococcus epidermidis, 44 (14.0%) S. capitis, 36 (11.4%) S. haemolyticus/hominis, 29 (9.2%) S. warneri, 19 (6.0%) S. simulans and 12 (3.8%) members of the S. saprophyticus group. Using laboratory generated criteria, 44.8%, 25.9% and 4.5% of coagulase-negative isolates from catheter tips, urines and blood cultures respectively, were deemed pathologically potentially significant. Although more common, S. epidermidis did not appear to be significantly more virulent than other members of the epidermidis species group or S. simulans; 67% of the S. saprophyticus group isolates from urine were considered pathologically significant. Antibiograms on the 796 coagulase-negative isolates revealed 63.2% resistant to penicillin, 22.6% to methicillin, 34.8% to cephradine, 27.5% to gentamicin, and 14.4% to erythromycin; multiple resistance was common. Methicillin resistance was a feature of S. saprophyticus group strains. With isolates from catheter tips and blood cultures, a significantly higher percentage of those regarded as significant were gentamicin resistant. Apart from penicillin, antibiotic resistance was not so marked in strains of coagulase-positive staphylococci recovered over the same period.
- Published
- 1986
- Full Text
- View/download PDF
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