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1.
The handwashing practices of 22 personnel on an oncology unit in an urban medical center were studied for 2 months. During 891 person-hours of observation, 986 handwashes were observed. Subjects washed a mean of 1.1 times an hour for a mean of 13.2 seconds. Reported and observed handwashing behavior was only moderately correlated (p = 0.05 for frequency, 0.30 for duration of handwashing). Physicians washed significantly less often (p less than 0.001), but more thoroughly (p less than 0.001), than did nurses. Nurses washed more often after minimal or no patient contact than did physicians (p less than 0.001). Individuals were very consistent in their handwashing technique. A total of 558 isolates were recovered from 158 hand cultures. The mean log count was 4.88, with no significant difference between physicians and nurses. Coagulase-negative staphylococci isolated from hands of physicians and nurses were significantly more resistant to antimicrobial agents than those of personnel with minimal patient contact (p less than 0.01). Subjects had more skin damage in winter than in summer, as indicated by increased shedding of skin squames (p less than 0.05). We conclude that handwashing practices vary significantly by profession and that reporting of handwashing practices by personnel is inaccurate.  相似文献   

2.
Factors that are important in influencing individuals to wash or not wash their hands were studied in 193 health care personnel. The most important factor favoring handwashing (HW) was the prevention of spread of infection among patients; the most important factor against HW was busy-ness. Physicians reported HW significantly less frequently than did nurses (p = 0.04). Individuals who washed infrequently, less than eight times per day, placed significantly more value on detrimental effects of frequent HW on their own skin and on the HW practices of their work colleagues than did individuals who washed frequently, more than 16 times per day (p < 0.005). Frequent and infrequent washers did not differ significantly in their values regarding the factors favoring HW. Identifying factors that are determinants of whether one decides to wash one's hands or not are important in planning intervention strategies to improve practice. It appears that more emphasis should be placed on minimizing deterrents (especially detrimental effects on skin and peer pressure) rather than on emphasizing the importance of HW.  相似文献   

3.
Six hundred twenty-two isolates from 554 samples taken from hands of 103 hospital personnel and 50 controls were obtained over a mean period of 35 days. Eighty-five were obtained immediately before and after handwashing (HW), the remainder after HW only. The relationship of HW agent used, clinical area and job, and frequency of HW to rates of bacterial colonization and numbers and types of organisms isolated, particularly gram-negative bacteria, were evaluated. The HW agent used ( nonantiseptic , hexachlorophene-based, chlorhexidine-based, or iodophor) was significantly correlated with the number of isolates obtained from each sample. Control subjects, all of whom used nonantiseptic soaps, had 1.42 mean isolates per sample; hospital personnel who used nonantiseptic soap had a mean of 1.00 isolates per sample. Other means were 1.25, hexachlorophene; 1.43, iodophor; 0.79, chlorhexidine; and 0.67 for those who used several different antiseptics, p less than 0.0001. The agent was also correlated with the type of organisms isolated (p = 0.002), but not with the counts of colony-forming units (CFU). Frequency of HW was significantly correlated with CFU counts before (p = 0.03) and after (p = 0.001) HW. In general, numbers decreased with increasing HW frequency, but at the higher HW frequencies there was a slight rise. There were significant differences in numbers of isolates per sample according to clinical area, with personnel working in obstetrics and nonpatient areas having the greatest number and those working on neonatal and medical-surgical units having the least (p less than 0.0001).(ABSTRACT TRUNCATED AT 250 WORDS)  相似文献   

4.
Osteopenia and metatarsal fractures in diabetic neuropathy   总被引:2,自引:0,他引:2  
Radiographs of the hands and feet of 19 diabetic patients with severe neuropathy were compared to those of 22 control patients without neuropathy. The two groups were matched for age, sex, and duration of diabetes. Cortical bone mass, measured by x-ray morphometry, was significantly lower in both the hands (p less than 0.002) and the feet (p less than 0.001) of those with neuropathy. The osteopenia was worse in the feet than the hands and also worse in women. Serum alkaline phosphatase levels were also significantly higher in the neuropathy group (p less than 0.005). Metatarsal fractures were a frequent finding in the neuropathic patients, but were not seen in controls. The presence of metatarsal fractures was strongly associated with the subsequent development of diabetic osteopathy (p less than 0.001). We conclude that cortical bone mass in the feet and hands is reduced in severe diabetic neuropathy. This may contribute to the predisposition to metatarsal fracture and diabetic osteopathy.  相似文献   

5.
Cardiovascular (CV) autonomic functions were assessed in 50 insulin-dependent diabetic patients and in 30 controls using a battery of autonomic tests: Valsalva Manoeuvre (VR), Deep Breathing (DB), Lying-to-Standing (LS), Sustained Handgrip (SHG) and Postural Hypotension (PH). The results were compared with those obtained from a study of cardiac resting adjustment to different static postures (quiet lying and standing). 10 diabetics with abnormal responses to the majority of tests were considered affected by Diabetic Autonomic Neuropathy (DAN); 15 with some abnormal of borderline responses were defined much less than Borderlines much greater than. The remaining 25 diabetics, while displaying lower values than the controls in parasympathetic tests, had much less than normal much greater than autonomic responses. The VR mean (+/- SD) value was 1.71 +/- 31 in much less than normal much greater than diabetics and 2.01 +/- 0.29 in controls (p less than 0.001); the DB mean value was 20.6 +/- 87 and 28 +/- 8.13 (p less than 0.001), and the LS mean value 1.16 +/- 0.12 and 1.33 +/- 0.18 (p less than 0.001) respectively. No significant differences were found in the sympathetic tests (SHG, PH). However Heart Rate (HR) adjustment of diabetics with normal CV responses to immobile standing (RR mean 783 +/- 136 ms) and lying (RR mean increment of 25 +/- 11%; p less than 0.001) was similar to that of controls who had a resting HR standing (RR mean 749 +/- 104 ms) and lying (RR mean 884 +/- 116 ms) with a mean increment of 20.2 +/- 10.9% (p less than 0.001).(ABSTRACT TRUNCATED AT 250 WORDS)  相似文献   

6.
Background: We report a 1-year surveillance study that evaluates colonization and infection with ciprofloxacin-resistant gram-negative bacilli (CR GNB) and the relation to quinolone use and other possible risk factors in a proprietary skilled nursing facility (SNF) with no history of outbreaks. Methods: Rectal swabs obtained quarterly were streaked on MacConkey agar with ciprofloxacin discs (5 μg) to screen for CR GNB and later were speciated and the antimicrobial susceptibilities were confirmed by standardized disc-diffusion tests. Results: The mean prevalence of CR GNB colonization was 2.6% (range 0.9% to 5.3%). The colonization frequency was higher in the last survey than it was in the first survey. CR GNB–colonized strains included Pseudomonas species (21%), but more than half were non-Pseudomonas enterics such as Acinetobacter baumannii (25%), Proteus mirabilis (17%), and Providencia stuartii (13%). None of the patients who had colonization with CR GNB had subsequent infections with the same species. Patients with colonization had more exposure to ciprofloxacin and they were more likely to have been recently admitted from an acute-care hospital and have decubitus ulcers. During the study period, of 336 patients surveyed, 98 (29%) patients developed suspected infections and cultures were done; the infection rate was 4.7 per 1000 patient days. Of these infected patients, 59 (60%) were infected by GNBs; the infection rate was 2.3 per 1000 patient days. Nineteen percent of the GNB infections were treated with a quinolone. (Overall, quinolones constituted about 17% of antibiotic usage in the SNF). Only 3 (5%) of the patients infected with GNB were infected with CR GNB, including Pseudomonas and Providenci a species. The CR GNB infections involved multiple sites, multiple organisms, and long length of stay in the SNF. Conclusions: The findings indicate that in this community SNF, a low frequency of colonization or infection with CR GNB existed. Whether continued moderate use of quinolones will lead to increasing levels of CR GNB will require further study. (AJIC Am J Infect Control 1998;26:552-7)  相似文献   

7.
Joint mobility was assessed in 80 consecutive adult noninsulin-dependent diabetic (NIDD) patients and 47 nondiabetic controls matched for age and sex. Impairment of mobility was observed in 36 NIDD patients but only 7 controls (p less than 0.01). There was no significant differences between diabetic patients with and without impaired mobility with regards to age, duration of diabetes, mean daily insulin dose, or overall diabetic control as assessed by the measurement of glycosylated haemoglobin (HbA1C). However, NIDD patients with impaired joint mobility had a significantly increased frequency of microvascular disease, as shown by retinopathy and/or nephropathy (42% versus 22%, p less than 0.05), were more often on insulin treatment (86% versus 63%, p less than 0.05) and more frequently had additional rheumatic disorders such as Dupuytren's contracture and osteoarthritis (36% versus 18%, p less than 0.05). In addition tight waxy skin over the phalanges was commonly associated with impaired mobility (58% versus 22%, p less than 0.01). Limitation of joint mobility was most prominent in the hands but caused no functional impairment. This finding may be an additional marker of microvascular disease in the adult diabetic patient.  相似文献   

8.
BACKGROUND. Patients with coronary artery disease (CAD) are at considerable risk for subsequent cardiovascular events. Although hyperlipidemia accentuates the risk, predictors of subsequent events with CAD and desirable total cholesterol (TC) (less than 5.2 mmol/l) have not been assessed. METHODS AND RESULTS. A survival analysis was performed in a subset of 740 consecutive patients who underwent diagnostic coronary arteriography between 1977 and 1978. Eight-three men and 24 women with angiographically documented CAD and desirable TC were followed for subsequent cardiovascular events, including myocardial infarction and cardiovascular death. Over a 13-year period, 75% of CAD subjects with reduced high density lipoprotein cholesterol (HDL-C) (less than 0.9 mmol/l) developed a subsequent cardiovascular event compared with 45% of those with HDL-C greater than or equal to 0.9 mmol/l (p = 0.002). A Kaplan-Meier analysis revealed significantly greater survival from cardiovascular end points in patients with baseline levels of HDL-C greater than or equal to 0.9 mmol/l (p = 0.005). After 11 variables were tested, an age-adjusted Cox proportional-hazards model identified two pairs of independent predictors of subsequent cardiovascular events: they were a left ventricular ejection fraction (LVEF) less than 35% (relative risk [RR], 6.5; 95% confidence interval [CI], 2.8, 15.3; p less than 0.001) and reduced HDL-C (RR, 2.0; 95% CI, 1.2, 3.3; p = 0.01) in the first model and LVEF less than 35% (RR, 6.5; 95% CI, 2.7, 15.6; p less than 0.001) and TC:HDL ratio greater than or equal to 5.5 (RR, 1.9; 95% CI, 1.1, 3.1; p = 0.02) in the second model. CONCLUSIONS. Low HDL-C (or high TC:HDL-C) is strongly predictive of subsequent cardiovascular events in subjects with CAD, despite desirable TC. As such, identification of this potentially modifiable risk factor should be actively pursued in this high-risk subgroup.  相似文献   

9.
By means of a case-control study we investigated the association between HLA phenotypes and the development of proteinuria after aurothioglucose or D-penicillamine treatment in patients with rheumatoid arthritis (RA). HLA-DR3 was markedly increased in 44 treatment cases compared with 66 RA controls (46 versus 18%, p = 0.002). HLA-DR3 positive patients were at greater risk during treatment with D-penicillamine (RR 10.1, p = 0.001) than gold treated cases (RR 1.7, p = 0.365). The associations between HLA-DR3 and nephrotic syndrome (RR = 6.3, p = 0.004) and early onset proteinuria (RR = 5.4, p less than 0.001) were stronger compared with uncomplicated proteinuria (RR = 3.1, p = 0.017) and late-onset proteinuria (RR = 1.6, p = 0.459), respectively. It appears that genetic factors in RA influence the development, the degree and the time of onset of drug induced proteinuria.  相似文献   

10.
RR interval variations in young male diabetics.   总被引:2,自引:1,他引:2       下载免费PDF全文
The beat-to-beat (RR interval) variation in resting heart rate was used to detect possible autonomic nerve damage in a group of 42 young asymptomatic male diabetics, employing a sensitive electrocardiographic computer technique. Compared with 25 age-matched controls, the diabetics showed both a significantly smaller mean RR interval (P less than 0.005) and less RR interval variation (P less than 0.001). Whereas only 4 of the diabetic subjects had shorter mean RR intervals, 22 (52%) of the diabetics had RR interval variations that were less than any of the normal subjects. This reduction in heart rate variation has not been previously reported in diabetics without clinical features of autonomic neuropathy and might provide a sensitive method of assessing early autonomic nerve involvement in diabetes.  相似文献   

11.
The beat-to-beat (RR interval) variation in resting heart rate was used to detect possible autonomic nerve damage in a group of 42 young asymptomatic male diabetics, employing a sensitive electrocardiographic computer technique. Compared with 25 age-matched controls, the diabetics showed both a significantly smaller mean RR interval (P less than 0.005) and less RR interval variation (P less than 0.001). Whereas only 4 of the diabetic subjects had shorter mean RR intervals, 22 (52%) of the diabetics had RR interval variations that were less than any of the normal subjects. This reduction in heart rate variation has not been previously reported in diabetics without clinical features of autonomic neuropathy and might provide a sensitive method of assessing early autonomic nerve involvement in diabetes.  相似文献   

12.
Unemployment and diabetes   总被引:1,自引:0,他引:1  
Unemployment was examined in a random sample of diabetic clinic attenders and a group of non-diabetic control subjects aged 17-65 years, selected from eight different centres in Great Britain. Data on employment were obtained using a postal questionnaire and medical details were collected from diabetic clinic notes. Out of a 61% response rate, 22% of males and 12% of females with diabetes were unemployed compared with 8 and 5% of the control group (both p less than 0.001). A greater percentage of people with diabetes were economically inactive, that is retired, unable to work, ill or housewives compared with the control group (29 vs 14%, p less than 0.001). Young people with diabetes (16-25 years) had the highest rates of unemployment. A matched pairs analysis confirmed that diabetic men had higher unemployment rates than their controls (14 vs 7%, p less than 0.001). Comparisons were made between unemployment rates for the eight geographical areas and published unemployment statistics; unemployment rates were significantly higher for men with diabetes except at one centre. A stepwise multiple logistic regression analysis indicated that variables which were predictive of unemployment were similar to those expected for people without diabetes. Unemployment is apparently a problem for the person with diabetes, especially for the young.  相似文献   

13.
"Persistently abnormal" technetium-99m stannous pyrophosphate myocardial scintigrams (PPi+) appear to be associated with a relatively poor prognosis after acute myocardial infarction (AMI). To assess the incidence and implications of PPi+, we performed a retrospective analysis in 29 patients with and 25 patients without diabetes mellitus who had abnormal myocardial scintigrams within 4 days of AMI and who had follow-up scintigrams at least 3 months after hospital discharge. There were no significant differences between patients with and without diabetes as regards age, incidence of transmural or nontransmural AMI, or degree of left ventricular dysfunction after AMI. Persistently abnormal PPi+ occurred more commonly in patients with diabetes than in nondiabetic patients (18 of 29, 62%, compared to 3 of 25, 12%; p less than 0.001). Patients with chronic PPi+ had more frequent cardiac complications following hospital discharge (p less than 0.005) including death, recurrent AMI, unstable angina, and intractable congestive heart failure. Postmortem analysis in two patients with diabetes and chronic PPi+ revealed marked myocytolysis. Thus, patients with diabetes mellitus have an increased incidence of post-AMI "persistently abnormal" technetium (PPi+) scintigrams and relatively poor prognosis following myocardial infarction.  相似文献   

14.
Biopsy specimens from the antral and body mucosa of 183 patients with gastric polyps (adenoma, 4; hyperplastic polyp (HP), 52; foveolar hyperplasia (FH), 49; and inflammatory polyp (IP), 78 cases) have been examined. The prevalence of gastritis in the series was compared with that in 183 age- and sex-matched controls. The dynamics (progression) of gastritis was evaluated by means of an age-adjusted gastritic score. In the HP and FH groups the prevalence and progression of body gastritis were significantly higher and more rapid (p less than 0.001) while the prevalence of antral gastritis was lower (p less than 0.05) and its progression less rapid (p less than 0.001) than in controls. It is concluded that the pernicious anaemia type of gastritis (A-type gastritis) is closely related to gastric polyps of hyperplastic origin. The progression of this gastritis type seemed to increase in the order IP, FH, and HP. In addition, we observed an increase in the prevalence of intestinal metaplasia (p less than 0.001) and marked epithelial dysplasia (0.1 greater than p greater than 0.05; chi-square = 3.75) in stomachs with polyps as compared with in controls.  相似文献   

15.
Pattern of gastric and esophageal acidity were evaluated in 14 patients with endoscopically and histologically proven Barrett's esophagus, in 46 with slight-to-moderate esophagitis, and in 22 healthy subjects. In patients with Barrett's esophagus, LES pressure was considerably lower and percentage exposure to acid was considerably higher than in either patients with esophagitis or controls (p less than 0.001). Percentage of time with esophageal pH below 4 was 33.2% in patients with Barrett's esophagus, 14% in patients with slight-to-moderate esophagitis (p less than 0.001), and 3.4% in controls (p less than 0.001). In patients with Barrett's esophagus, the esophageal exposure to acid was similar in upright and supine positions, and the number of refluxes that lasted longer than 5 min was also greater in these patients than in uncomplicated esophagitis or controls (p less than 0.001). Accordingly, their acid-clearing capacity was markedly reduced (p less than 0.001 vs. control). Omeprazole 20 mg, given once daily, reduced both percentage of time with pH below 4 (p less than 0.001) and the number of episodes longer than 5 min (p less than 0.001), but had no effect on acid clearance. In patients with Barrett's esophagus, omeprazole lowered intragastric acidity by 77.8% (p less than 0.001). Median intragastric pH was 1.9 (1.7-2.1) pretreatment, and 4.5 (4.2-5) during omeprazole (p less than 0.001).  相似文献   

16.
Among 1013 consecutive patients with acute myocardial infarction (AMI), 104 (10%) developed complete bundle-branch block (BBB). The clinical characteristics and the short- and long-term prognosis were similar in the 53 patients with right and the 51 patients with left BBB. Compared to the 909 patients without this conduction disturbance, these 104 patients were older (64 +/- 9 vs. 58 +/- 10 years, p less than 0.001), more frequently women (26 vs. 17%, p less than 0.05), had a larger infarct (peak CK 1672 +/- 1124 vs. 1356 +/- 1089 IU/l, p less than 0.001), more frequently anterior (60 vs. 37%, p less than 0.001). They had a higher incidence of Killip class greater than 1 (63 vs. 38%, p less than 0.001), pericarditis (40 vs. 23%, p less than 0.001), atrial fibrillation or flutter (22 vs. 12%, p less than 0.01), ventricular fibrillation (15 vs. 9%, p less than 0.05), and atrioventricular block (23 vs. 11%, p less than 0.001). Both hospital mortality (32 vs 10%, p less than 0.001) and 3-year posthospital mortality (37 vs. 18%, p less than 0.001) were much higher among patients with complete BBB. Transient BBB had the same deleterious prognosis as BBB persistent at discharge (mortality 33 vs. 39%, NS). The prognostic importance of BBB was more prominent during the first 6 months after infarction (mortality between 6 and 36 months: 18% with BBB vs. 11% without BBB, NS).  相似文献   

17.
Polymorphonuclear leukocyte functions were studied in 92 patients with protein-calorie malnutrition. Serum folic acid levels were higher than 3 ng/ml in 38 patients and 3 ng/ml or less in 54 patients. Significant differences were found between these two groups of patients with regard to phagocytosis (81.5 +/- 1.9 versus 69.2 +/- 2.0 percent, p less than 0.001) and bactericidal ability (90.6 +/- 1.1 versus 84.5 +/- 2.3 percent, p less than 0.05). Correction of folic acid deficiency in 22 patients was associated with recovery of normal phagocytosis (p less than 0.001) but not bactericidal function. Adding folic acid to the serum of eight patients also restored normal phagocytic function (p less than 0.001). A correlation was found in vivo and in vitro between changes over time in folic acid levels and in phagocytosis.  相似文献   

18.
To determine 1) whether the effect of intravenous nitroglycerin (NG) therapy during acute myocardial infarction on creatine kinase infarct size is influenced by infarct location (anterior vs. inferior), timing (therapy less than 4 hours vs. greater than or equal to 4 hours after onset of pain), and dose response (mean blood pressure greater than or equal to 80 mm Hg vs. less than 80 mm Hg during the first 12 hours) and 2) whether NG therapy modifies infarct expansion, 310 patients were randomly allocated to NG (n = 154) and control (n = 156) groups. NG infusion was titrated to lower mean blood pressure by 10% in normotensive and 30% in hypertensive patients, but not below 80 mm Hg, and was maintained for 39 hours. Measurements included clinical variables, creatine kinase infarct size (geq) as well as left ventricular (LV) asynergy, LV ejection fraction, expansion index, and thinning ratio on serial two-dimensional echocardiography. Compared with controls, creatine kinase infarct size was less in the NG group (41 vs. 55 geq, p less than 0.001), in anterior (44 vs. 58 geq, p less than 0.05), and inferior (39 vs. 53 geq, p less than 0.025) NG subgroups, and in early than late NG subgroups (43% vs. 22% decrease). Other indexes of infarct size also improved (p less than or equal to 0.05) with NG compared with controls. Thus, by 10 days, LV asynergy was 40% less, LV ejection fraction was 22% more, and Killip class score was 41% less. A negative effect of mean blood pressure less than 80 mm Hg with NG was reflected in these indexes. In addition, expansion index increased (p less than 0.001) by 31% and thinning ratio decreased (p less than 0.001) by 17% in controls by 10 days but remained unchanged with NG. Infarct-related major complications were less frequent in the NG than the control groups: infarct expansion syndrome (2% vs. 15%, p less than 0.0005), LV thrombus (5% vs. 22%, p less than 0.0005), cardiogenic shock (5% vs. 15%, p less than 0.005), and infarct extension (11% vs. 22%, p less than 0.025). Mortality was less in NG than in control groups in-hospital (14% vs. 26%, p less than 0.01), at 3 months (16% vs. 28%, p less than 0.025) and 12 months (21% vs. 31%, p less than 0.05), but this advantage was only found in the anterior subgroups.(ABSTRACT TRUNCATED AT 250 WORDS)  相似文献   

19.
The prevalence of microalbuminuria was assessed in 149 consecutive, newly-diagnosed and untreated patients with Type 2 diabetes, 129 of whom were followed up for 1 year, with at least three urine specimens being obtained during this period. At initial presentation, 39 (26%) patients had a urinary albumin to creatinine ratio (ACR) of greater than 2.5 mg mmol-1 and compared with patients who had a normal ACR, they were older (64 (11) (SD) vs 58 (11) yr, p less than 0.002), with higher random blood glucose (14.4 (4.5) vs 12.3 (4.4) mmol l-1, p less than 0.02) and glycosylated haemoglobin (13.0 (3.1) vs 11.3 (2.7)%, p less than 0.01) concentrations. An elevated ACR was also associated with a higher systolic blood pressure (149 (22) vs 140 (22), p less than 0.05) and the presence of macrovascular disease, particularly peripheral vascular disease (p less than 0.001), with this association persisting after adjustment for the effect of age. Ten patients reverted to normal albumin excretion on improving blood glucose control, this group having a significantly higher glycosylated haemoglobin concentration at initial presentation than the group with a persistently elevated ACR (14.4 (2.5) vs 12.0 (3.0)%, p less than 0.05). The 21 (16%) patients with a persistently elevated ACR from diagnosis of Type 2 diabetes were older than those with normal albumin excretion throughout (64 (7) vs 58 (10) yr, p less than 0.02) and it is probable that these patients have abnormal albumin excretion secondary to established renal pathology.  相似文献   

20.
BACKGROUND: Hospital-acquired infection often occurs because of lapses in accepted standards of practice on the part of health care personnel. The aim of this study is to attract attention on poor hospital infection control practice in venepuncture and use of tourniquets and emphasize the importance of hand hygiene. METHODS: Overall compliance with hygiene during usage of tourniquets and routine patient care before and after implementation of a hospital infection control measures was evaluated. RESULTS: According to the questionnaire, only 26.9% of respondents always washed their hands both before and after venepuncture. In the second step of the study, based on direct observation, hands were washed both before and after venepuncture on only 41 (45.1%) occasions. Failure to remove gloves after patient contact was observed on 23.1% occasions. CONCLUSION: Our survey reveals poor infection control practice in hand hygiene, glove utilization, and usage of tourniquets and the implementation of infection control measures produced a moderate improvement in compliance with them.  相似文献   

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