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Biomedical subjects

Pekka Laippala

Publications and source records attributed to Pekka Laippala.

At least 19 recordsLinked to original sources

Apolipoprotein E polymorphism is not a predictor for repeated coronary artery bypass surgery.

OBJECTIVES: Factors leading to the occlusion of coronary grafts are diverse and may at least partially be inherited. We aimed to study the possible genetic predisposition and especially the role of apoE epsilon4 allele as a risk factor for repeated coronary artery bypass grafting (CABG) in a case-control setting. DESIGN: All patients (n=184) who underwent repeated CABG between 1990 and 1998 were identified in the computed registry of the Department of Cardiothoracic Surgery in Tampere University Hospital. Age, sex and operation date matched controls with first time CABG were selected from the same registry. DNA samples were collected by sample stick sent via the mail for buccal smear. The final analysis included 137 surviving matched pairs. RESULTS: In patients <62 years of age (median age), family history emerged as the only significant (OR=3.4; 95% CI=1.5-7.8, p=0.004) predictor for repeated surgery. Among older patients, repeated CABG was no longer predicted by family history but by hypercholesterolemia (OR=2.1; 95% CI=1.1-4.0, p=0.027), modified by apoE genotype. CONCLUSIONS: Our results suggest that medium-term survivors after redo CABG have a strong genetic predisposition unrelated to hypercholesterolemia or apoE genotype, leading to more severe coronary artery disease at earlier age. In the older age group, redo coronary artery bypass surgery is associated with hypercholesterolemia, which, although modified by apoE genotype, may mainly be due to other genetic or acquired factors.

Aged↗

Effect of macrolide consumption on erythromycin resistance in Streptococcus pyogenes in Finland in 1997-2001.

The aim of this study was to investigate the association between regional macrolide resistance in Streptococcus pyogenes and macrolide use in Finland. During 1997-2001, a total of 50,875 S. pyogenes isolates were tested for erythromycin susceptibility in clinical microbiology laboratories throughout Finland. The local erythromycin resistance levels were compared with the regional consumption data of all macrolides pooled and, separately, with the use of azithromycin. The regional resistance rates of 1 year were compared with the regional consumption of the previous year and with the average rates of use for the 2 previous years. A linear mixed model for repeated measures was used in modeling the association. A statistically significant association existed between regional erythromycin resistance in S. pyogenes and consumption of macrolides; association with azithromycin use alone was not found.

Drug Prescriptions↗

Do objective urodynamic or clinical findings determine impact of urinary incontinence or its treatment on quality of life?

OBJECTIVES: To correlate the clinical and urodynamic parameters with two measures of incontinence-specific quality of life (QOL), to describe the changes in those measures after treatment, and to explore the factors determining these changes. METHODS: A total of 82 incontinent women (mean age 52 years, range 28 to 80) underwent urodynamics testing and a 48-hour pad test. They also completed the frequency/volume chart, estimated the degree of bother from urinary incontinence using the visual analog scale (VAS), and completed a validated QOL instrument--the Urinary Incontinence Severity Score (UISS). Sixty-nine women were re-evaluated 13 months (range 6 to 21) after treatment. RESULTS: A greater degree of disability from urinary incontinence as measured by the VAS correlated with a lower maximal urethral closure pressure (r = -0.29, P <0.01), greater detrusor pressure (r = 0.30, P <0.05), and amount of urine leakage (r = 0.46, P <0.001). The UISS correlated poorly with the urodynamic and frequency/volume chart findings. A greater amount of urine leakage was the best predictor of QOL impairment as measured by the UISS (beta 0.25; P = 0.034). The change in urine leakage best predicted the change in the UISS (beta 0.30; P = 0.024) and the change in the VAS (beta 0.48; P = 0.001). CONCLUSIONS: The response to the question "How bothered are you by incontinence at this moment?" best reflects the severity of urinary incontinence measured objectively. Urodynamic parameters correlated poorly with incontinence-specific QOL measure. Of the clinical objective measures of the severity of urinary incontinence, the amount of leakage in the pad test was the best, although modest, predictor of QOL impairment. The change in urine leakage best predicted the change in QOL scores and VAS 1 year after beginning treatment.

Adult↗

Management of acute maxillary sinusitis in Finnish primary care. Results from the nationwide MIKSTRA study.

OBJECTIVES: To study the management of acute maxillary sinusitis (AMS) in Finnish primary care and to compare it both to recommendations in national guidelines and to the management of other upper respiratory tract infections (URTI). DESIGN: A cross-sectional multi-centre epidemiological survey. SETTING: Thirty primary care health centres in Finland. SUBJECTS: 7284 patients with symptoms of possible acute rhinosinusitis during one week in both November 1998 and November 1999. MAIN OUTCOME MEASURE: Symptoms and their duration, use of diagnostic tools, choice of antibiotics, patient outcomes. RESULTS: A total of 1601 patients were diagnosed as having AMS (12% of all patients with infectious disease). In 45% of cases the differentiation between AMS and URTI was based on clinical examination alone. Sinus ultrasound was the most common diagnostic tool used (38%). Sinus radiography or blood tests (CRP or leukocytes) were both studied in 8% of cases. AMS was diagnosed and treated with antibiotics also in the early stages of URTI when viruses are the most likely explanation. In total, 83% of patients with AMS received a prescription for antibiotics; the most common choice was amoxycillin (37%), doxycycline was used in 29% of cases, and macrolides in 15%. CONCLUSIONS: Antibiotics are prescribed for AMS 2 to 5 times more often than true disease incidence would suggest in Finland. The choice of antibiotics follows the guideline recommendations; however, use of macrolides is higher than recommended. Physicians feel strong pressure from patients to prescribe antibiotics for AMS. Primary care physicians need better support in the accurate diagnosis of AMS.

Acute Disease↗

The effect of home biofeedback training on stress incontinence.

BACKGROUND: To compare the effectiveness of pelvic floor training (PFT) with the aid of a home biofeedback device to PFT alone for urodynamic stress urinary incontinence (SUI) in women after a 1-year follow-up. METHODS: A randomized study comparing two conservative interventions was conducted in an outpatient clinic of a university hospital. Thirty-five consecutive women were randomized to either the PFT with home biofeedback group or the PFT alone group. The intensive training period lasted 12 weeks. After 1 year, 33 women could be evaluated according to the protocol. At the 1-year visit pelvic floor muscle activity was measured and the need for surgical intervention was evaluated. Logistic multivariate analysis was used to predict response to the PFT. RESULTS: In the home biofeedback training group 11/16 (68.8%) avoided surgery vs. 10/19 (52.6%) in the PFT alone group. The difference was not statistically significant. In the nonoperated home biofeedback group the increase in pelvic floor muscle activity (p = 0.005 in supine, p = 0.005 in standing) and the decrease in leakage index (p = 0.05) was significant after 12 weeks and pelvic floor activity remained constant. By contrast, in the nonoperated PFT group the increase in pelvic floor muscle activity after 12 weeks predicted a good result for conservative treatment. CONCLUSIONS: This randomized controlled trial suggests that the home biofeedback method in PFT has a good success rate of 68.8%. The change achieved in leakage index after 12 weeks of training predicted an effective outcome for conservative treatment.

Adult↗

Is physical activity influenced by urinary incontinence?

OBJECTIVE: To evaluate physical activity among urinary incontinent women seeking treatment and to assess the change of physical activity after treatment. DESIGN: Part of a prospective observational intervention study to examine the factors influencing the severity of urinary incontinence. SETTING: Tampere University Hospital-referral unit. POPULATION: Eighty-two urinary incontinent women were evaluated in the baseline and 69 (84%) one year (mean 13 months, range 6-21) after treatment. METHODS: Physical activity was measured by self-report questionnaire and electronic motion sensor: Caltrac accelerometer worn by women for one week. The diagnosis and severity of urinary incontinence was estimated on the basis of urodynamics, pad test, diary and incontinence-specific quality of life measures. Treatment outcome was assessed according to objective parameters and patients satisfaction. MAIN OUTCOME MEASURES: Physical activity at work, leisure and sport expressed in MET (metabolic unit) and kilocalories, change in physical activity after treatment. RESULTS: Twenty-one (25.6%) of all women reported exercise of more than three times per week. Incontinent women with the highest leisure time activity > or =6 MET (n= 23, above 75th centile) were younger; they had less body mass index and greater urine leakage than others. One year after treatment, there was no change in any parameters of physical activities. Also exercise habits among women who were completely dry (n= 37) after treatment were not changed. CONCLUSION: Urinary incontinent women who seek treatment are as physically active as the normal population. Even after successful incontinence treatment, exercise habits do not change.

Adult↗

Effectiveness of dynamic muscle training, relaxation training, or ordinary activity for chronic neck pain: randomised controlled trial.

OBJECTIVE: To determine the effectiveness of dynamic muscle training and relaxation training for chronic neck pain. DESIGN: Randomised controlled trial. SETTING: Five occupational healthcare centres, Tampere, Finland. PARTICIPANTS: 393 female office workers (mean age 45 years) with chronic non-specific neck pain randomly assigned to 12 weeks of dynamic muscle training (n = 135) or relaxation training (n = 128), plus one week of reinforcement training six months after baseline; or ordinary activity (control group; n = 130). MAIN OUTCOME MEASURE: Change in intensity of neck pain at three, six, and 12 months. RESULTS: No significant difference was found in neck pain between the groups at follow up. However, the range of motion for cervical rotation and lateral flexion increased more in the training groups than in the control group. CONCLUSIONS: Dynamic muscle training and relaxation training do not lead to better improvements in neck pain compared with ordinary activity.

Algorithms↗

Absence of association between an intercellular adhesion molecule 1 gene E469K polymorphism and Alzheimer's disease in Finnish patients.

Increased expression of intercellular adhesion molecule 1 (ICAM1), a protein known to contribute to inflammatory responses, has been detected in the brain tissue of patients with Alzheimer's disease (AD) and animals modelled to mimic AD or Parkinson's disease (PD). ICAM1 may, thus, be implicated in the pathogenesis of these disorders. Our purpose was to investigate whether genetic variants of the ICAM1 gene have a role in causing susceptibility to AD and/or PD. We genotyped the E469K polymorphism of ICAM1 in 196 AD, 52 PD and 202 control patients of Finnish origin. The distributions of the genotype and allele frequencies of the polymorphism did not differ significantly between the AD, PD or the control patients. We therefore conclude that the E469K polymorphism of ICAM1 is not a risk factor for AD or PD.

Alzheimer Disease↗

Respiratory health of cobalt production workers.

BACKGROUND: Cobalt production workers are exposed to metallic cobalt and nickel and their compounds and to different irritant gases. The aim of our study was to determine whether long-term exposure is associated with an increased occurrence of respiratory symptoms and findings or diseases, other than asthma, which is a known hazard, among cobalt processing workers. METHODS: The study population was comprised of 110 current and former cobalt workers who had worked more than 10 years in a cobalt plant. The reference group consisted of 140 unexposed workers. All the participants were men. The analysis was based on exposure history, pulmonary function, chest X-ray findings, and symptom questionnaires. RESULTS: Symptoms of asthma based on questionnaire responses were statistically more prevalent among the exposed workers. The respiratory flow rates MEF25 and MEF50, which refer to smaller airways, were significantly lower among the smoking exposed workers than among the smoking unexposed workers. The causative factors of these symptoms and pulmonary function changes could not be determined by the study. One new case of cobalt asthma and one case of allergic asthma were diagnosed in the exposed population. No cases of hard metal disease or fibrosing alveolitis were found. CONCLUSIONS: No chronic respiratory diseases, except asthma, were found among cobalt production workers in this study.

Adult↗

Severe depression determines quality of life in urinary incontinent women.

AIMS: The purpose of this study was to assess depression and anxiety in urinary incontinent women and to investigate factors influencing their self-perception of urinary incontinence severity. METHODS: In this prospective study, 82 incontinent women estimated the severity of urinary incontinence using a visual analogue scale and completed a validated quality of life instrument: urinary incontinence severity score. Psychiatrists evaluated depression and anxiety using a structured interview of Hamilton Depression and Hamilton Anxiety Scales. Patients were classified on the basis of history and urodynamic evaluation into two diagnostic groups: stress urinary incontinence (n = 57) and idiopatic urge incontinence with or without stress incontinence (n = 25). RESULTS: Major depression occurred in 44.0% of women with idiopatic urge (+/- stress) incontinence and in 17.5% women with stress incontinence (odds ratio (OR 3.69), 95% confidence interval (95% CI 1.30-10.49)). Twenty two patients had severe incontinence defined as Urinary Incontinence Severity Score > or =14 points (upper quartile) and 23 patients defined as visual analogue scale > or =9 (upper quartile). In logistic regression analysis, major depression (OR 5.57; 95% CI 1.19-26.11), urge incontinence diagnosis (OR 23.13; 95% CI 1.90-282.11), parity (OR 2.33; 95% CI 1.16-4.60) and high Urgency Score (OR 1.94; 95% CI 1.32-2.85) predicted Urinary Incontinence Severity Score above the upper quartile. Only the pad-test (OR 1.01; 95% CI 1.00-1.02) predicted visual analogue scale above upper quartile. CONCLUSIONS: Major depression correlates with reduced incontinence specific quality of life. This data also suggests an association between depression and idiopatic urge incontinence.

Adult↗

A new table for work with a microscope, a solution to ergonomic problems.

Microscope workers are exposed to continuous static muscular work and an increased risk of musculoskeletal disorders in the neck, shoulder and upper extremities. In a Finnish research centre, microscope workers reported pain in the shoulder, neck, lower back and upper back. As a consequence, a programme to solve the ergonomic problems of microscope work was initiated and led to the construction of a new table for microscopes. Ten experienced male microscope workers were chosen as subjects to carry out an experimental study in which the new table and an old one, an ordinary non-adjustable laboratory table, were compared in a standardized microscope task. The dependent variable was the electromyographic activity measured from muscles in the neck-shoulder region. The new table allowed the microscope to be used with the head in an upright position, the forearms supported and with less flexion of the upper arm. Surface electromyographic measurements also confirmed that the changes were ergonomic improvements.

Adult↗

The impact of somatic health problems on insomnia in middle age.

OBJECTIVE: The objective of this study is to assess the impact on insomnia symptoms of somatic diseases, psychological factors, living habits and life events during the previous year. BACKGROUND: Although health problems are a significant cause of insomnia, psychosocial factors are considered to be even more important. The relative impact of these and other factors on insomnia calls for further evaluation. METHODS: A questionnaire study in a randomly selected middle-aged population in Finland (N=626, 264 men and 362 women). RESULTS: In our study, 9.8% of men and 17.0% of women reported the occurrence of insomnia at least once a week during the previous 3 months. Insomniacs perceived their health as 'poor' or 'rather poor' more often than others and depression, allergic rhinitis, asthma, hypertension and heart symptoms such as arrhythmias were more common among them. Insomnia was not a side-effect of the treatment of these diseases; lack of medical treatment was associated with a higher incidence of insomnia. Work-related factors such as 'moving to a poorer job or to poorer working conditions' during the past year increased the possibility of insomnia, while moving house seemed to have a positive effect. When comparing these associations in logistic regression models, nervousness and tension were, however, the factors most significantly associated with insomnia. CONCLUSIONS: Psychosocial factors appeared to be more significantly associated with prolonged insomnia than somatic health problems.

Adult↗

Oral prednisolone in the acute management of children age 6 to 35 months with viral respiratory infection-induced lower airway disease: a randomized, placebo-controlled trial.

OBJECTIVE: To investigate the efficacy of oral prednisolone in virally induced respiratory distress. Study design Randomized, double-blind, placebo-controlled trial involving 230 children age 6 to 35 months in the emergency department. Each patient received either oral prednisolone (2 mg/kg/d) or placebo for 3 days. RESULTS: The hospitalization rates were similar between the two groups. For admitted children (n=123), the median length of stay was 1 day shorter in the prednisolone group (2 vs 3 days, P=.060). The proportion of children requiring >or=3 days of hospitalization was 47.5% in the prednisolone group and 67.7% in the placebo group (P=.023). There was less need for additional asthma medication (18.0% vs 37.1%, P=.018) in the prednisolone group. The median duration of symptoms of respiratory distress was 1 day in the prednisolone group versus 2 days in the placebo group both among the hospitalized (P<.001) and nonhospitalized children (P=.006). CONCLUSION: A 3-day course of oral prednisolone effectively reduced disease severity, length of hospital stay, and the duration of symptoms among children 6 to 35 months old with virally induced respiratory distress.

Administration, Oral↗

Hallux valgus: immediate operation versus 1 year of waiting with or without orthoses: a randomized controlled trial of 209 patients.

Hallux valgus operations can not always be done immediately because of long waiting lists. In this study, 209 consecutive patients (mean age 48 years, 93% female) with a painful hallux valgus were randomized into 3 groups: immediate operation or 1 year waiting with or without foot orthoses. The follow-up period was 2 years. The main outcome measurement was the intensity of pain during walking. During the first year, 64/71, 0/69 and 4/69 patients were operated on in the surgery, orthosis and no orthosis groups, respectively, and during the 2-year follow-up, 66, 43 and 48, respectively. At the 1-year follow-up, the pain was least intense in the surgery group. At the 2-year follow-up, the intensity of pain was similar in all groups. The satisfaction with treatment was best in the surgery and orthosis groups. The total costs of care were similar in all groups. We conclude that immediate operation is superior to delayed operation or foot orthoses. However, if this is not possible because of limited possibilities for surgery, waiting for 1 year, with or without an orthosis, does not jeopardize the final outcome.

Costs and Cost Analysis↗

Change in the prevalence of coronary heart disease among Finnish elderly men and women in the 1990s.

OBJECTIVE: To characterise the prevalence of, and changes in, coronary heart disease (CHD) among men and women aged between 64 and 71 years in the 1990s. DESIGN: A study of clinical epidemiology involving two cohorts of elderly persons in 1990-1991 and 1998-1999. SETTING: Primary health care in the municipality of Lieto in southwestern Finland. SUBJECTS: Persons between 64 and 71 years of age in the southwest of Finland in 1990-1991 and 1998-1999. MAIN OUTCOME MEASURES: The occurrences of CHD were estimated using the history of a previous myocardial infarction or coronary revascularisation procedure evident in the medical records and with ischaemia or infarction as established on ECG according to the Whitehall criteria. RESULTS: The prevalence of 'probable' CHD decreased among men and women aged between 64 and 71 years, whereas the prevalence of 'possible' CHD decreased among women alone. Silent myocardial infarctions were common among women of both cohorts. Many more men of the second cohort, compared to the first one, had undergone a coronary angioplasty or bypass operation. CONCLUSION: The prevalence of CHD decreased among elderly women more clearly than among young elderly men. The favourable development illustrating a decrease in the prevalence of CHD among women should be sustained, while health promotion activities will need to be directed more actively towards men.

Aged↗

Transient loss of consciousness as reason for admission to primary health care emergency room.

OBJECTIVE: To study the occurrence and main causes of transient loss of consciousness in primary health care. DESIGN: A 4-month prospective survey. SETTING: Primary health care emergency room of the City of Tampere, Finland. SUBJECTS: Consecutive patients, aged over 15 years, admitted to the emergency room. MAIN OUTCOME MEASURES: The overall prevalence of loss of consciousness divided into three subgroups: seizure, syncope and uncertain, and their distribution by gender and age. The prevalence of epilepsy, coronary heart disease and alcohol abuse among these diagnostic subgroups. RESULTS: Of all emergency room visits, 1.2% were for loss of consciousness. Of these, 53% were diagnosed as seizures, 33% as syncope attacks and 14% as uncertain. In the seizure group, 75% of patients were men and 67% had a history of alcohol abuse. In the syncope group, 44% of patients had coronary heart disease and 68% were women. CONCLUSION: Loss of consciousness is a fairly frequent problem for the primary health care emergency room. A history of alcohol abuse is commonly associated with seizures.

Adolescent↗

Evaluation of a new cellulose sponge-tipped swab for microbiological sampling: a laboratory and clinical investigation.

A new type of swab (Cellswab; Cellomeda, Turku, Finland), utilizing a highly absorbent cellulose viscose sponge material, was compared to some traditional swabs. The survival of 14 aerobic and 10 anaerobic and microaerophilic bacterial species in the Cellswab, two commercial swab transport systems (Copan, Brescia, Italy, and Orion Diagnostica, Espoo, Finland), and one Dacron swab (Technical Service Consultants Ltd. [TSC], Heywood, United Kingdom) was evaluated. Bacteria were suspended in broth, into which the swabs were dipped. The Cellswab absorbed 1.3 times more fluid and released 3.5 times more fluid upon plating than the other swabs. Aerobic bacteria were stored in dry tubes, the others in transport medium, at 4 degrees C and room temperature (RT), for up to 14 days. Swab samples were transferred to plates at 0, 1, 2, 4, 7, and 14 days. For 10 strains the Cellswab yielded > or =10% of the original CFU for longer than all the other swabs. In the clinical study, the ability of the Cellswab to detect beta-hemolytic streptococci from throat samples (n = 995) was compared to that of the TSC Dacron swab. The swabs performed equally, both when their samples were transferred to plates immediately and after storage for 1 day at 4 degrees C or RT. The changes in normal microbiota after storage were also similar. The Cellswab was found to perform at least as well as ordinary swabs. It was better at storing fastidious strains, and at keeping bacteria viable for long storage times; it might well be a useful replacement or complement to ordinary swabs.

Bacterial Infections↗

Electroencephalographic burst suppression versus loss of reflexes anesthesia with propofol or thiopental: differences of variance in the catecholamine and cardiovascular response to tracheal intubation.

UNLABELLED: The electroencephalographic burst suppression pattern (BSP) might indicate the brain's effect-site concentration of anesthetics more precisely than clinical signs and thus eliminate bias from studies on the reaction to tracheal intubation after different induction drugs. To test this hypothesis, we compared the catecholamine and cardiovascular responses and their variances to tracheal intubation when either BSP was induced by infusion of propofol (30 mg x kg(-1) x h(-1); n = 14) or thiopental (75 mg x kg(-1) x h(-1); n = 14) or anesthesia by repeated bolus doses until loss of reflexes (LR), initially of propofol 2.5 mg/kg (n = 15) or thiopental 5 mg/kg (n = 15). The standard deviations were more often smaller in the BSP than in the LR groups, but the results of Levene's test for differences of variance were insignificant. At the LR level, propofol attenuated catecholamine, arterial blood pressure, and heart rate responses to intubation better than thiopental, but at the BSP level, only the norepinephrine response was better attenuated. Cp50 concentrations of propofol and thiopental at the onset of BSP were 9.65 and 31.60 micro g/mL, respectively. IMPLICATIONS: Our results did not support the hypothesis that the responses to tracheal intubation can be more accurately predicted when unconsciousness is controlled with the aid of an electroencephalographic burst suppression pattern. Significant differences were found in the reactions between propofol and thiopental. At the burst suppression level, the catecholamine response was abolished with propofol.

Adult↗