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Biomedical subjects

J Syrotuik

Publications and source records attributed to J Syrotuik.

8 recordsLinked to original sources
PubMed1999

Comparative study of self-rating pain scales in osteoarthritis patients.

Although progress has been made in the clinical metrology of pain in osteoarthritis, much further work remains. The preferred methods of measurement remain debatable. In this longitudinal, open study, a comparison of eight self-rating pain scales has been conducted. A total of 333 patients entered the four-week study after completing a 3-7 day NSAID-free washout period. Patients were assigned to treatment with oxaprozin 1200 mg p.o. once daily with titration permitted between 600 mg and 1800 mg. Rescue analgesia with acetaminophen (paracetamol) 325 mg (maximum 2600 mg) was allowed. At the end of the washout and the treatment period, patients completed eight self-administered pain scales. All pain measures detected clinically important and statistically significant improvements in pain. The pain scales differed in their degree of responsiveness. The Likert and visual analogue scales and their primary variations (continuous chromatic analogue and numerical scales) were more responsive than more complex measures. A positive correlation between initial pain rating and subsequent pain relief was confirmed in this study. We conclude that, while pain is a subjective sensory phenomenon, its perceived severity can be evaluated using a variety of self-administered pain scales, all of which are capable of detecting improvements in health status following effective pharmacological intervention.

Adult↗
PubMed1999

Comparative study of self-rating pain scales in rheumatoid arthritis patients.

Although progress has been made in the clinical metrology of pain in rheumatoid arthritis, much further work remains. The preferred methods of measurement remain debatable. In this longitudinal, open study, a comparison of eight self-rating pain scales has been conducted. A total of 124 patients entered the four-week study after completing a 3-7-day NSAID-free washout period. Patients were assigned to treatment with oxaprozin 1200 mg p.o. once daily with titration permitted between 600 mg and 1800 mg. Rescue analgesia with acetaminophen (paracetamol) 325 mg (maximum 2600 mg) was permitted. At the end of the washout and treatment period, patients completed eight self-administered pain rating scales. All pain measures detected clinically important and statistically significant improvements in pain. The pain scales differed in their degree of responsiveness. The Likert and visual analogue scales and their primary variations (continuous chromatic analogue and numerical scales) were more responsive than more complex measures. A positive correlation between initial pain rating and subsequent pain response was confirmed in this study. We conclude that, while pain is a subjective sensory phenomenon, its perceived severity can be evaluated using a variety of self-administered pain scales, all of which are capable of detecting improvements in health status following effective pharmacological intervention.

Adult↗
PubMed1994

Comparison of single-dose cefotetan and multidose cefoxitin as intravenous prophylaxis in elective, open biliary tract surgery: a multicentre, double-blind, randomized study.

OBJECTIVE: To compare the safety, tolerance and prophylactic effectiveness of a single 2-g dose of cefotetan with a standard prophylactic regimen of cefoxitin in reducing the incidence of postoperative infections after elective, open biliary tract surgery. DESIGN: Multicentre, double-blind, randomized comparative study with a 4-week follow-up. SETTING: Five Canadian university centres. PARTICIPANTS: One hundred and eleven patients scheduled to undergo elective, open biliary tract surgery. INTERVENTIONS: The patients were randomly assigned to receive either cefotetan or cefoxitin in a ratio of 2:1; 76 patients received cefotetan and 35 received cefoxitin. MAIN OUTCOME MEASURES: Wound infection as defined by the Centers for Disease Control and Prevention and by clinical evaluation, adverse events and laboratory parameters. RESULTS: Two incisional wound infections were reported by patients in the cefotetan group, for an overall infection rate of 1.8% (2 of 111). No significant differences were found in the failure rate or in any other indicator of efficacy. The incidence of adverse events for cefotetan (12.6%) was not statistically different from that for cefoxitin (10.4%), and none of the 16 adverse events in the cefotetan group and 5 in the cefoxitin group was serious or severe. Only one event (rash) was possibly related to the study drugs. Several hematologic and biochemical parameters were found to be normal preoperatively and abnormal postoperatively, but no relation was found between these variations and the study drugs. These changes were mainly attributable to the operation. CONCLUSION: Cefotetan was found to be effective and comparable to cefoxitin, both in safety and in reducing the incidence of infection after elective, open biliary tract surgery.

Adolescent↗
PubMed1986

Health beliefs as predictors of success of alternate modalities of smoking cessation: results of a controlled trial.

The primary objective of this study was to determine whether health beliefs influenced the outcome of the three alternate modalities of reducing cigarette consumption. The study randomized volunteers either to a control group or to one of three cessation programs, using behavior modification, health education, or hypnosis. A questionnaire was used to document health beliefs, demographic characteristics, and smoking history. Blood samples were taken before and after the completion of intervention programs to measure changes in serum thiocyanate. A follow-up questionnaire was used to assess smoking behavior after 6 months. Statistically significant decreases in serum thiocyanate levels followed participation in each of the three programs. Factor analysis and reliability tests were used to identify four scales reflecting major variable dimensions in the health belief model. Significant correlations between change in serum thiocyanate and two of the scales (general health concern and perceived vulnerability) were found only for the group randomly assigned to the health education intervention program.

Adult↗
PubMed1984

Social support and mental health: direct, protective and compensatory effects.

This study deals with the relationship between social support and mental health. This relationship was conceptualized as a multi-faceted one which may be understood in terms of direct (main), protective (buffering) and compensatory effects. Hypotheses relating to these effects were evaluated in terms of spousal/community support and job strains (pressure, autonomy, opportunities) among a sample of 455 married males who were employed on a full-time basis. Results indicated that spousal support generally had more important implications for psychological well-being than did community support. However, the relative impact of these different sources of support appeared to be related to the degree to which the mental health symptomology reported was affectively defined. With respect to protective effects, spousal support was found to moderate the relationship between certain job strains (pressure) and mental health. No protective effects were found for community support. Tests of the hypothesis that community support compensates for low levels of spousal support were made in terms of both direct and protective effects. No direct effect compensation was observed. However, protective effect compensation was observed for certain job strains (opportunities) and was relevant to a wide range of symptomology. The overall results suggest a primary/secondary hierarchy of supports and strains in which primary supports (e.g. spousal) assume a protective function with respect to secondary strains (e.g. job) while secondary supports (e.g. community) do not protect individuals from primary strains (e.g. spousal). Secondary supports have a protective function for secondary strains in the absence of primary supports. It is further suggested that sex roles may be important determinants of the availability and use of different support sources.

Adult↗
PubMed1983

Random number generators for microcomputers.

The feasibility of random number generation using microcomputers is discussed and the appropriateness of alternative algorithms is evaluated on the basis of several criteria of statistical randomness. The relative deficiencies of each algorithm are cited and a modified Fibonacci generator is recommended for use in the microcomputer environment.

Computers↗