Adherence to recommended standards of diabetes care by Swiss primary care physicians.

OBJECTIVES: To assess adherence to recommended standards of diabetes care by Swiss primary care physicians. METHODS: Medical files of community-based primary care physician were reviewed to assess adherence to recommended standards of diabetes care. These standards of care were based on a uniform set of definitions addressing medical care processes involved in the detection and follow-up of pre-diabetic and diabetic patients. RESULTS: 186 physicians agreed to participate and 3,682 medical files were assessed. The prevalence of diabetes was 11% and 5% had impaired glucose tolerance (pre-diabetic). Screening of diabetes based on family or personal history was reported for 83% of the patients and on cardiovascular risk factors for 69%. Counselling for dietary changes was reported for 91% of diabetic patients and for 79% for physical activity, but only for 66% and respectively 60% of pre-diabetic patients. Among diabetic patients, regular HbA1c control was reported for 65%, yearly fundoscopy for 62%, yearly feet examination for 65%, yearly microalbuminuria control for 49%, regular blood pressure control for 96%, and yearly lipid profile for 89%. Regular screening of microangiopathic complications was reported for only 33% of diabetic patients. CONCLUSION: Adherence to recommended standards of diabetes care displayed important variations among this convenience sample of Swiss primary care patients. Screening and counselling of diabetic patients were frequent, whereas counselling for lifestyle changes of pre-diabetic patients and regular follow-up of microangiopathic complications among diabetic patients were suboptimal. These results could help to target areas of diabetes care that need to be addressed to improve adherence to recommended standards.

Importance of lifestyle counselling by primary care physicians for diabetic patients.

OBJECTIVE: To identify diabetic patients' characteristics and medical care factors associated with recommended glycaemic control (HbA(1c) < or =7%). METHODS: As part of a cross-sectional assessment of diabetes care involving 204 Swiss primary care physicians, we identified 366 diabetic patients with a recent HbA(1c) value. Cross-tabulations and X(2) tests were used to explore the association of patients' sociodemographic and disease characteristics and medical care characteristics with HbA(1c) < or =7%. Significant factors were included in a regression logistic model to identify multivariate predictors of HbA(1c) < or =7%. RESULTS: HbA(1c) values were in the recommended range for 57% of the patients. A less than five years' history of diabetes, absence of followup by a diabetes specialist, absence of microalbuminuria or retinopathy, adherence to dietary and physical activity counselling, no participation in a diabetic education programme, no glycaemic self-monitoring, oral or no antidiabetic therapy and influenza vaccine in the last 12 months were associated with HbA(1c) < or =7%. In the multivariate analysis, HbA(1c) < or =7% remained associated with a less than five years diabetes history (odds ratio [OR] 2.5, 95% confidence interval [CI] 1.5-4.3), as well as patients' adherence to dietary (OR 1.9, 95% CI 1.2-3.0) and physical activity counselling (OR 1.8, 95% CI 1.1-2.9). CONCLUSION: In this sample of diabetic patients, adherence to dietary and physical activity counselling were associated with better glycaemic control. Further research should focus on the importance of appropriate lifestyle counselling by Swiss primary care physicians, ideally in prospective trials using objective and reproducible measures of patients' observance.

Counselling overweight and obese patients in primary care: a prospective cohort study.

BACKGROUND: Primary care physicians are well positioned to provide counselling for overweight and obese patients, but no prospective study has assessed the effectiveness of this counselling in primary care. We aimed to evaluate weight reduction counselling by primary care physicians, and its relationship with weight change and patients' behaviour to control weight. DESIGN: A prospective cohort study. METHODS: We enrolled 523 consecutive overweight and obese patients from two Swiss academic primary care clinics. Physicians and patients were blinded to the study aims. We assessed the use of 10 predefined counselling strategies for weight reduction, and weight change and behaviour to control weight after 1 year. RESULTS: Sixty-five per cent of patients received some form of weight reduction counselling whereas 35% received no counselling. A total of 407 patients completed the 1-year follow-up. Those who received counselling lost on average (SD) 1.0 (5.0) kg after 1 year, whereas those who were not advised gained 0.3 (5.0) kg (P = 0.02). In multivariate analysis, each additional counselling strategy was associated with a mean weight loss of 0.2 kg (95% confidence interval 0.03-0.4, P = 0.02). Patients counselled by their physician had more favourable behaviour to control weight than those not counselled, such as setting a target weight (56 versus 36%) or visiting a dietician (23 versus 10%, both P < 0.001). CONCLUSIONS: Weight reduction counselling by primary care physicians is associated with a modest weight loss and favourable behaviour to control weight. However, many obese and overweight patients receive no advice on weight loss during primary care visits.

Management of acute pharyngitis in adults: reliability of rapid streptococcal tests and clinical findings.

BACKGROUND: How to use clinical score, the rapid streptococcal antigen test (RSAT), and culture results is uncertain for efficient management of acute pharyngitis in adults. METHODS: This prospective cohort study included 372 adult patients with pharyngitis treated at a Swiss university-based primary care clinic. In eligible patients with 2 to 4 clinical symptoms and signs (temperature >or=38 degrees C, tonsillar exudate, tender cervical adenopathy, and no cough or rhinitis), we performed an RSAT and obtained a throat culture. We measured sensitivity and specificity of RSAT with culture as a gold standard and compared appropriate antibiotic use with cost per patient appropriately treated for the following 5 strategies: symptomatic treatment, systematic RSAT, selective RSAT, empirical antibiotic treatment, and systematic culture. RESULTS: RSAT had high sensitivity (91%) and specificity (95%) for the diagnosis of streptococcal pharyngitis. Systematic throat culture resulted in the highest antibiotic use, in 38% of patients with streptococcal pharyngitis. Systematic RSAT led to nearly optimal treatment (94%) and antibiotic prescription (37%), with minimal antibiotic overuse (3%) and underuse (3%). Empirical antibiotic treatment in patients with 3 or 4 clinical symptoms or signs resulted in a lower rate of appropriate therapy (59%) but higher rates of antibiotic use (60%), overuse (32%), and underuse (9%). Systematic RSAT was more cost-effective than strategies based on empirical treatment or culture: 15.00 dollars, 26.00 dollars, and 32.00 dollars, respectively, per patient appropriately treated. CONCLUSIONS: The RSAT we used is a valid test for diagnosis of pharyngitis in adults. A clinical approach combining this RSAT and clinical findings efficiently reduces inappropriate antibiotic prescription in adult patients with acute pharyngitis. Empirical therapy in patients with 3 or 4 clinical symptoms or signs results in antibiotic overuse.

Summary consensus statement of the Review Board of the Swiss Complementary Medicine Evaluation Programme, (Programme Evaluation Komplementärmedizin, PEK) regarding the PEK process and products.

The international review board was set up as the scientific advisory body of the Swiss Complementary Medicine Evaluation Programme (PEK) in 2002. It has met several times and has given advice with respect to the most important aspects of the programme. It would have been the normal procedure for the review board to have had the opportunity to comment on the drafts of the final scientific products as well as the draft of the summary report, in order to advise on them, before the documents became publicly available and formed the basis for political decision making. But the responsible authorities changed this process. In the following, the review board comments both on this process and on the products.

Use of hormone replacement therapy by menopausal women: a comparison between primary care patients and the general population.

OBJECTIVES: To compare frequency and patterns of hormone replacement therapy (HRT) between primary care patients and the local community. METHODS: Comparison of data from a questionnaire survey of 107 peri- and postmenopausal patients in an academic primary care clinic during 1998 to similar data from a sample (n = 241) of an ongoing annual epidemiological survey representative of the general population. RESULTS: Mean age, menopause status, age of initiation of HRT, and prior use of contraceptive pill were similar in both groups. Current HRT use tended to be lower among patients in the clinic than in the community. HRT users in the clinic were more likely to have had a surgical menopause (34.4% vs. 16.1%, p = 0.04) and to have used hormones for shorter periods than in the general population. Differences remained significant after adjustment in multivariate analysis. CONCLUSIONS: Compared to the general population, patterns of HRT use in the outpatient clinic were more restrictive than recommendations on HRT that were published at the time. This is an example of how comparison of health issues between patients in medical care and a local epidemiological survey can help to understand clinical practice.

Post-migration dietary changes among african refugees in Geneva: a rapid assessment study to inform nutritional interventions.

OBJECTIVES: To conduct an assessment of perceived dietary changes and problems by African asylum seekers, in order to develop appropriate nutritional education interventions. METHODS: A cross-sectional qualitative study among a convenience sample. Analysis compared and contrasted reported dietary changes and migration-related difficulties. RESULTS: Nineteen interviews were analysed. After migration, main dietary changes were the decrease in different fruits and vegetables consumed weekly from 10 to 2 and 17 to 10 respectively. The number of respondents drinking sweetened beverages more than 3 times a week increased from 3 to 18. Reasons for changes were related to prices, taste, choice and accessibility. CONCLUSION: These dietary changes may have serious health consequences. Future remedial interventions based on suggestions of the respondents could easily be implemented.

Health care and illegality: a survey of undocumented pregnant immigrants in Geneva.

Little is known about the conditions of life and the specific health problems of pregnant, undocumented immigrants. This study describes the socio-demographic characteristics and health problems encountered during pregnancy among uninsured, undocumented immigrants in Geneva, Switzerland. A socio-demographic questionnaire was completed by 134 pregnant and undocumented women (mean age 27.8 years) who attended a free antenatal facility between October 2002 and October 2003. The first control of pregnancy was at a median of 10.5 weeks (range 5-33) of amenorrhoea. They were mostly Latino-American (78%), had a median 12 years of education but almost exclusively performed domestic work (91%) after an average residence in Geneva of 18 months. Half of the 62 mothers had left at least one child in their home country. One out of three had never had a cervical smear test and 13% were not immune to rubella. Unintended pregnancies (83%), mostly resulted from lack of contraception (70%). All but one delivery were simple, with a median maternity inpatient stay of 5 days (range 2-10). This population of undocumented, pregnant immigrants comprised mostly highly educated, young, Latino-American women living in poor housing conditions and wages below the legal minimum. The study identified the high proportion of unintended pregnancies as a major health issue. Future research should target these issues and programs addressing lack of access to preventive measures. As well as this, the specific needs of this hard-to-reach population, such as contraception advice, rubella vaccination and cervical cancer screening, should be supported.

Severe multivalvular heart disease: a new complication of the ergot derivative dopamine agonists.

We report on 4 new cases of valvular heart disease in Parkinson's disease patients treated with the ergot derivative dopamine agonists pergolide and cabergoline. Noninflammatory fibrotic degeneration of cardiac valves has been reported to occur in patients with carcinoid syndrome and to occasionally complicate therapies with the anti-migraine ergot alkaloid ergotamine and methysergide and with the appetite suppressants fenfluramine and dexfenfluramine. In these cases, the pathogenesis is suspected to involve serotonin-mediated abnormal fibrogenesis by means of the 5-HT2B receptors, which are expressed in the fibroblasts of heart valves. Based on strikingly similar echocardiographic and histopathological features, we strongly suspect that ergot-derived dopamine agonists may cause a valvular heart disease nearly identical to that seen in those conditions. These cases add to a rapidly growing and worrying list of similar published reports, suggesting that we may well be facing a novel, yet unrecognized, complication of this class of agents, which are widely used not only in Parkinson's disease but also in restless legs syndrome and various common endocrine dysfunctions. Therefore, until more is known about the true prevalence of this side effect, we propose that an assessment of cardiac function be performed before and in the course of a long-term therapy with ergot derivative dopamine agonists.

Improving communication between physicians and patients who speak a foreign language.

BACKGROUND: Communication between physicians and patients is particularly challenging when patients do not speak the local language (in Switzerland, they are known as allophones). AIM: To assess the effectiveness of an intervention to improve communication skills of physicians who deal with allophone patients. DESIGN OF STUDY: 'Before-and-after' intervention study, in which both patients (allophone and francophone) and physicians completed visit-specific questionnaires assessing the quality of communication. SETTING: Two consecutive samples of patients attending the medical outpatient clinic of a teaching hospital in French-speaking Switzerland. METHOD: The intervention consisted of training physicians in communicating with allophone patients and working with interpreters. French-speaking patients served as the control group. The outcomes measured were: patient satisfaction with care received and with communication during consultation; and provider (primary care physician) satisfaction with care provided and communication during consultation. RESULTS: At baseline, mean scores of patients' assessments of communication were lower for allophone than for francophone patients. At follow-up, five out of six of the scores of allophone patients showed small increases (P < 0.05) when compared with French-speaking patients: explanations given by physician; respectfulness of physician; communication; overall process of the consultation; and information about future care. In contrast, physicians' assessments did not change significantly. Finally, after the intervention, the proportion of consultations with allophone patients in which professional interpreters were present increased significantly from 46% to 67%. CONCLUSIONS: The quality of communication as perceived by allophone patients can be improved with specific training aimed at primary care physicians.

Renal hemodynamic and tubular responses to salt in women using oral contraceptives.

BACKGROUND: The use of oral contraceptives is associated with an increased risk of developing hypertension but the mechanisms of this hypertensive effect are not completely defined. The purpose of the present study was to assess prospectively the systemic and renal hemodynamic and tubular responses to salt in women taking oral contraceptives. METHODS: Twenty seven young healthy normotensive women taking oral contraceptives containing monophasic combination of 30 microg ethynilestradiol and 150 microg desogestrel for>6 months were enrolled. All women were assigned at random to receive a low (40 mmol/day) or a high (250 mmol/day) sodium diet for 1 week on two consecutive menstrual cycles during the active oral contraceptive phase. At the end of each diet period, 24-hour ambulatory blood pressure, renal hemodynamics, sodium handling, and hormonal profile were measured. RESULTS: The blood pressure response to salt on oral contraceptives was characterized by a salt-resistant pattern with a normal circadian rhythm. Salt loading results in an increase in glomerular filtration rate (GFR) (P < 0.05 vs. low salt), with no change in the renal plasma flow, thus leading to an increase in the filtration fraction (P < 0.05). At the tubular level, women on oral contraceptives responded to a low salt intake with a marked increased in proximal sodium conservation (P < 0.01 vs. high salt) and with an almost complete reabsorption of sodium reaching the distal tubule. After sodium loading, both the proximal and the distal reabsorption of sodium decreased significantly (P < 0.01). CONCLUSION: The use of oral contraceptives is not associated with an increased blood pressure response to salt in young normotensive women. However, oral contraceptives affect the renal hemodynamic response to salt, a high salt intake leading to an increase in GFR and filtration fraction. This effect is possibly mediated by the estrogen-induced activation of the renin-angiotensin system. Oral contraceptives also appear to increase the tubular responsiveness to changes in sodium intake. Taken together, these data point out evidence that synthetic sex steroids have a significant impact on renal function in women. The renal effects of oral contraceptives should be taken into account when managing young women with renal diseases.

Interactive group education for refugees from the Former Yugoslavia to reduce their oil consumption.

In 1999 at an outpatient dietetic consultation in Geneva, Switzerland, 20% of the patients were refugees. Most were from the Former Yugoslavia. The main goal of dietary counseling was to decrease their fat consumption. As one-on-one counseling was unsuccessful, a pilot intervention was developed to explore the potential of participatory workshops for identifying and implementing appropriate behaviors. Four series of three workshops were held. Participants identified and practiced ways to reduce fat consumption. Knowledge skills were measured on completion of the workshops and 6 months later. Oil was highly valued in participants' representation of health. However, average reduction of oil per recipe was 58%, or 35 ml (95% CI: 15-55). The application of oil-sparing techniques increased nine-fold. Such an approach may be an alternative to one-on-one dietary counseling where this is ineffective. Next steps should include a trial to determine the impact of new skills on actual fat consumption.

Promoting influenza vaccination of elderly patients in primary care.

BACKGROUND: Though influenza is a serious health problem for elderly people, their influenza vaccination rate remains low in Switzerland. OBJECTIVE: Our aim was to assess the impact of an intervention combining multiple strategies to promote influenza vaccination of elderly patients in primary care. METHODS: We conducted a pre-/post-intervention study in a university-based primary care clinic in Geneva, Switzerland, where an annual community-wide campaign promotes influenza vaccination of people at high risk. We included 318 and 346 patients aged over 64 years attending the clinic during the last trimesters of 1995 and 1996, respectively. The intervention included: patient information by leaflets and posters, a walk-in vaccination clinic, a training workshop for physicians, record reminders and peer comparison feedback on vaccination performance. Using the computerized database, medical records and the vaccination register, we measured influenza immunization rates and relative benefits (RBs) of the intervention. RESULTS: Influenza vaccine uptake globally increased from 21.7% before the intervention to 51.7% thereafter. Among 144 patients attending in both phases, the immunization rate rose from 29.2 to 69.4% [matched RB estimate () = 2.4; 95% confidence interval (CI) 1.9-3.0]; vaccine uptake increased particularly among all chronic patients ( = 3.2; 95% CI 2.2-4.6), cardiac patients ( = 3.4; 95% CI 2.1-5.4) and diabetics ( = 3.3; 95% CI 1.9-5.9). For 376 patients attending in a single phase, the vaccination rate rose from 15.5 to 39.1% (adjusted RB = 2.8; 95% CI 1.8-4.4), particularly among the elderly aged 65-75 years (adjusted RB = 5.7; 95% CI 2.7-12.4). CONCLUSION: An intervention combining strategies targeting patients, physicians and care delivery significantly increased influenza vaccine uptake of elderly patients in primary care, particularly those at high risk.

Symptoms and clinical and radiological signs predicting the presence of pathogenic bacteria in acute rhinosinusitis.

A minority of patients with upper respiratory tract infections (URTI) have a bacterial infection and may benefit from antibiotherapy. In previous investigations we showed that in patients suffering from acute rhinosinusitis associated with the presence of Streptococcus pneumoniae, Haemophilus influenzae or Moraxella catarrhalis in their nasopharygeal secretions, resolution of symptoms was significantly improved by antibiotic treatment. The present analysis was performed to determine whether specific clinical symptoms or signs observed during careful endoscopic examination of the nasal cavities could help the clinician to identify a subset of patients with moderate forms of acute rhinosinusitis infected with pathogenic bacteria. Detailed clinical histories were obtained and medical examinations performed in 265 patients (138 females, 127 males; mean age 35 years) presenting with a < 4-week history of URTI symptoms but who did not require immediate antibiotic therapy for severe rhinosinusitis. The presence of three pathogenic bacteria (S. pneumoniae, H. influenzae and M. catarrhalis) was determined in all patients by culture of nasopharyngeal secretions. Azithromycin (500 mg/day for 3 days; n = 133) or placebo (n = 132) were randomly given to all patients in a double-blind manner. Pathogenic bacteria were found in 77 patients (29%). The clinical signs and symptoms significantly associated in a multivariate model with the presence of bacteria included colored nasal discharge (p < 0.003), facial pain (p < 0.032) and radiologically determined maxillary sinusitis (complete opacity, air-fluid level or mucosal thickening > 10 mm) (p < 0.001). This best predictive model had a sensitivity of 69% and a specificity of 64% and therefore could not be used either as a screening tool or as a diagnostic criterion for bacterial rhinosinusitis. In the group of patients with positive bacterial cultures, resolution of symptoms at Day 7 was observed in 73% of patients treated with azithromycin and in 47% of patients in the placebo group (p < 0.007). We conclude that signs and symptoms of acute rhinosinusitis in patients with mild-to-moderate clinical presentations are poor predictors of the presence of bacteria.

Efficacy of resident training in smoking cessation: a randomized, controlled trial of a program based on application of behavioral theory and practice with standardized patients.

BACKGROUND: New educational programs must be developed to improve physicians' skills and effectiveness in counseling patients about smoking cessation. OBJECTIVE: To assess the efficacy of an educational program based on behavioral theory, active learning methods, and practice with standardized patients in helping patients abstain from smoking and changing physicians' counseling practices. DESIGN: Cluster randomized, controlled trial. SETTING: Two general internal medicine clinics in Switzerland. PARTICIPANTS: 35 residents and 251 consecutive smoking patients. INTERVENTION: A training program administered over two half-days, during which physicians learned to provide counseling that matched smokers' motivation to quit and practiced these skills with standardized patients acting as smokers at different stages of change. The control intervention was a didactic session on management of dyslipidemia. MEASUREMENTS: Self-reported abstinence from smoking at 1 year of follow-up, which was validated by exhaled carbon monoxide testing at one clinic; score of overall quality of counseling based on use of 14 counseling strategies; patient willingness to quit; and daily cigarette consumption. RESULTS: At 1 year of follow-up, abstinence from smoking was significantly higher in the intervention group than in the control group (13% vs. 5%; P = 0.005); this corresponded to a cluster-adjusted odds ratio of 2.8 (95% CI, 1.4 to 5.5). Residents who received the study training provided better counseling than did those who received the control training (mean score, 4.0 vs. 2.7; P = 0.002). Smokers' willingness to quit was also higher in the intervention group (94% vs. 80%; P = 0.007). A nonsignificant trend toward lower daily cigarette consumption in the intervention group was observed. CONCLUSION: A training program in smoking cessation administered to physicians that was based on behavioral theory and practice with standardized patients significantly increased the quality of physicians' counseling, smokers' motivation to quit, and rates of abstinence from smoking at 1 year.

Renal segmental tubular response to salt during the normal menstrual cycle.

BACKGROUND: It has been suggested that women gain weight and develop peripheral edema during the luteal phase of the menstrual cycle because they tend to retain sodium and water. However, there is actually no clear evidence for physiological, cyclic variations in renal sodium handling during the menstrual cycle. We prospectively assessed the changes in segmental renal sodium handling occurring during the menstrual cycle in response to changes in salt intake. METHODS: Thirty-five normotensive women were enrolled. Seventeen women were randomized and studied in the follicular and 18 in the luteal phases of their menstrual cycle. All women were assigned at random to receive a low (40 mmol/day) or a high (250 mmol/day) sodium diet for seven days on two consecutive menstrual cycles. Renal sodium handling and hemodynamics were measured at the end of each diet period. RESULTS: The changes in sodium intake induced comparable variations in sodium excretion in both phases of the menstrual cycle. In the follicular phase, the increase in salt intake was associated with no change in renal hemodynamics, an increased fractional excretion of lithium (FELi) and a decreased fractional distal reabsorption of sodium (FDRNa), suggesting that sodium reabsorption is reduced both in the proximal and the distal tubules. In contrast, in the luteal phase, the renal response to salt was characterized by a significant renal vasodilation and a marked salt escape from the distal nephron, compared to the women investigated in the follicular phase (P < 0.01). Sodium reabsorption by the proximal nephron was not reduced as indicated by the unchanged FELi. CONCLUSIONS: These results show that the segmental renal handling of sodium differs markedly in the two phases of the menstrual cycle. They suggest that the female hormones modulate the renal handling of sodium at the proximal and distal segments of the nephron in young normotensive women.