Antibiotics for acute maxillary sinusitis in adults

BACKGROUND

Sinusitis is one of the most common diagnoses among adults in ambulatory care, accounting for 15% to 21% of all adult outpatient antibiotic prescriptions. However, the role of antibiotics for sinusitis is controversial.

OBJECTIVES

To assess the effects of antibiotics in adults with acute maxillary sinusitis by comparing antibiotics with placebo, antibiotics from different classes and the side effects of different treatments.

SEARCH METHODS

We searched CENTRAL 2013, Issue 2, MEDLINE (1946 to March week 3, 2013), EMBASE (1974 to March 2013), SIGLE (OpenSIGLE, later OpenGrey (accessed 15 January 2013)), reference lists of the identified trials and systematic reviews of placebo-controlled studies. We also searched for ongoing trials via ClinicalTrials.gov and the WHO International Clinical Trials Registry Platform (ICTRP). We imposed no language or publication restrictions.

SELECTION CRITERIA

Randomised controlled trials (RCTs) comparing antibiotics with placebo or antibiotics from different classes for acute maxillary sinusitis in adults. We included trials with clinically diagnosed acute sinusitis, confirmed or not by imaging or bacterial culture.

DATA COLLECTION AND ANALYSIS

Two review authors independently screened search results, extracted data and assessed trial quality. We calculated risk ratios (RRs) for differences between intervention and control groups in whether the treatment failed or not. All measures are presented with 95% confidence intervals (CIs). We conducted the meta-analyses using either the fixed-effect or random-effects model. In meta-analyses of the placebo-controlled studies, we combined data across antibiotic classes. Primary outcomes were clinical failure rates at 7 to 15 days and 16 to 60 days follow-up. We used GRADEpro to assess the quality of the evidence.

MAIN RESULTS

We included 63 studies in this updated review; nine placebo-controlled studies involving 1915 participants (seven of the studies clearly conducted in primary care settings) and 54 studies comparing different classes of antibiotics (10 different comparisons). Five studies at low risk of bias comparing penicillin or amoxicillin to placebo provided information on the main outcome: clinical failure rate at 7 to 15 days follow-up, defined as a lack of full recovery or improvement, for participants with symptoms lasting at least seven days. In these studies antibiotics decreased the risk of clinical failure (pooled RR of 0.66, 95% CI 0.47 to 0.94, 1084 participants randomised, 1058 evaluated, moderate quality evidence). However, the clinical benefit was small. Cure or improvement rates were high in both the placebo group (86%) and the antibiotic group (91%) in these five studies. When clinical failure was defined as a lack of full recovery (n = five studies), results were similar: antibiotics decreased the risk of failure (pooled RR of 0.73, 95% CI 0.63 to 0.85, high quality evidence) at 7 to 15 days follow-up.Adverse effects in seven of the nine placebo-controlled studies (comparing penicillin, amoxicillin, azithromycin or moxicillin to placebo) were more common in antibiotic than in placebo groups (median of difference between groups 10.5%, range 2% to 23%). However, drop-outs due to adverse effects were rare in both groups: 1.5% in antibiotic groups and 1% in control groups.In the 10 head-to-head comparisons, none of the antibiotic preparations were superior to another. However, amoxicillin-clavulanate had significantly more drop-outs due to adverse effects than cephalosporins and macrolides.

AUTHORS' CONCLUSIONS

There is moderate evidence that antibiotics provide a small benefit for clinical outcomes in immunocompetent primary care patients with uncomplicated acute sinusitis. However, about 80% of participants treated without antibiotics improved within two weeks. Clinicians need to weigh the small benefits of antibiotic treatment against the potential for adverse effects at both the individual and general population levels.

Treatment of acute cough/lower respiratory tract infection by antibiotic class and associated outcomes: a 13 European country observational study in primary care

OBJECTIVES

Acute cough/lower respiratory tract infection (LRTI) is one of the commonest reasons for consulting and antibiotic prescribing. There are theoretical reasons why treatment with particular antibiotic classes may aid recovery more than others, but empirical, pragmatic evidence is lacking. We investigated whether treatment with a particular antibiotic class (amoxicillin) was more strongly associated with symptom score resolution and time to patients reporting recovery than each of eight other antibiotic classes or no antibiotic treatment for acute cough/LRTI.

METHODS

Clinicians recorded history, examination findings, symptom severity and antibiotic treatment for 3402 patients in a 13 country prospective observational study of adults presenting in 14 primary care research networks with acute cough/LRTI. 2714 patients completed a symptom score daily for up to 28 days and recorded the day on which they felt recovered. A three-level autoregressive moving average model (1,1) model investigated logged daily symptom scores to analyse symptom resolution. A two-level survival model analysed time to reported recovery. Clinical presentation was controlled for using clinician-recorded symptoms, sputum colour, temperature, age, co-morbidities, smoking status and duration of illness prior to consultation.

RESULTS

Compared with amoxicillin, no antibiotic class (and no antibiotic treatment) was associated with clinically relevant improved symptom resolution (all coefficients in the range -0.02 to 0.01 and all P values greater than 0.12). No antibiotic class (and no antibiotic treatment) was associated with faster time to recovery than amoxicillin.

CONCLUSIONS

Treatment by antibiotic class was not associated with symptom resolution or time to recovery in adults presenting to primary care with acute cough/LRTI.

Lymphoedema therapy in breast cancer patients: a systematic review on effectiveness and a survey of current practices and costs in Finland

BACKGROUND

This study systematically evaluates the effects and harms of physiotherapy methods and explores current treatment practices and costs in relation to lymphoedema in breast cancer patients in Finland.

MATERIAL AND METHODS

A systematic review of randomized controlled trials (RCTs) on physiotherapy interventions for breast cancer patients with lymphoedema. A postal survey to lymph therapists, a telephone and register survey for therapy costs.

RESULTS

We identified 14 RCTs, of which two had moderate and the others high risk of bias. There was moderate evidence that compression bandages decreased lymphoedema, and that pneumatic pumps had no effect on lymphoedema. In Finland lymph therapy practice is a combination of manual lymph drainage (MLD), compression bandages, therapeutic exercises and guidance for self-treatment, with an annual average cost of EUR 799 per patient.

CONCLUSIONS

Compression bandages are likely to reduce upper limb lymphoedema in breast cancer patients. Evidence on other physiotherapy methods and their combinations is limited due to the poor quality of the trials. No evidence was found on any outcomes other than upper limb volume. We call for well-designed trials with patient-related outcomes on the effectiveness of MLD, guidance and therapeutic exercises.

Prescription rates and diagnostic patterns are stable: A comparison of high-, medium- and low-prescribing primary care physicians treating community-acquired respiratory tract infections

The objective was to study prescription practices of primary care physicians in prescribing antibiotics for community-acquired respiratory tract infections. Design was time series analysis and cross-sectional survey. The setting was 30 community primary health care centres. A case report form was completed for 3478 patient consultations treated by 198 office-based primary care physicians. Main outcome measures were: classification of diagnoses of respiratory tract infections made by each physician; number of antibiotic prescriptions related to these diagnoses; each physician's mean weekly number of antibiotic prescriptions during 6 months before and after the survey. Patients' risk (odds ratio: OR) to receive an antibiotic prescription from the high and medium prescribers was 5.81 (95% confidence interval [CI] 4.85-6.96) and 2.41 (95% CI 2.04-2.86), compared to low prescribers. High and medium prescribers made more diagnoses of otitis media (OR 2.07, 95% CI 1.70-2.53 and 1.85, 95% CI 1.51-2.26, respectively) and fewer diagnoses of unspecified upper respiratory tract infection (OR 0.32, 95% CI 0.26-0.38 and 0.57, 95% CI 0.48-0.68, respectively) than low prescribers. The rank of the prescription rate of high, medium and low prescriber groups remained the same for all diagnoses except pneumonia. In addition, the annual rank between high, medium and low prescriber groups remained stable; high group prescribed more antibiotics during the year than medium group, which prescribed more than low prescriber group.

Antibiotics for acute maxillary sinusitis

BACKGROUND

Expert opinions vary on the appropriate role of antibiotics for sinusitis, one of the most commonly diagnosed conditions among adults in ambulatory care.

OBJECTIVES

We examined whether antibiotics are effective in treating acute sinusitis, and if so, which antibiotic classes are the most effective.

SEARCH STRATEGY

We searched the Cochrane Central Register of Controlled Trials (CENTRAL) (The Cochrane Library, 2007, Issue 3); MEDLINE (1950 to May 2007) and EMBASE (1974 to June 2007).

SELECTION CRITERIA

Randomized controlled trials (RCTs) comparing antibiotics with placebo or antibiotics from different classes for acute maxillary sinusitis in adults. We included trials with clinically diagnosed acute sinusitis, whether or not confirmed by radiography or bacterial culture.

DATA COLLECTION AND ANALYSIS

At least two review authors independently screened search results, extracted data and quality assessed trials. Risk ratios (RR) were calculated for differences in the intervention and control groups to see whether or not the treatment was a failure. In meta-analysing the placebo-controlled studies, the data across antibiotic classes were combined. Primary outcomes were the clinical failure rates at 7 to 15 days and 16 to 60 days follow up.

MAIN RESULTS

Fifty-seven studies were included in the review; six placebo-controlled studies and 51 studies comparing different classes of antibiotics. Five studies involving 631 participants provided data for comparison of antibiotics to placebo, when clinical failure was defined as a lack of cure or improvement at 7 to 15 days follow up. These studies found a slight statistical difference in favor of antibiotics, compared to placebo, with a pooled RR of 0.66 (95% confidence interval (CI) 0.44 to 0.98). However, the clinical significance of the result is equivocal, also considering that cure or improvement rate was high in both the placebo group (80%) and the antibiotic group (90%). Based on six studies, when clinical failure was defined as a lack of total cure, there was significant difference in favor of antibiotics compared to placebo with a pooled RR of 0.74 (95% CI 0.65 to 0.84) at 7 to 15 days follow up. None of the antibiotic preparations was superior to each other.

AUTHORS' CONCLUSIONS

Antibiotics have a small treatment effect in patients with uncomplicated acute sinusitis in a primary care setting with symptoms for more than seven days. However, 80% of participants treated without antibiotics improve within two weeks. Clinicians need to weigh the small benefits of antibiotic treatment against the potential for adverse effects at both the individual and general population level.

Recommended and prescribed symptomatic treatment for acute maxillary sinusitis in Finnish primary care

We studied the use of symptomatic medication in the treatment of acute maxillary sinusitis (AMS) in primary care and whether this use is in accordance with national guidelines. The data was collected annually in the Antimicrobial Treatment Strategies (MIKSTRA) Program in 30 primary health care centres throughout Finland during one week in November in the years from 1998 to 2002. Physicians and nurses collected the data about the diagnoses, prescription-only medicines and over the counter medicines prescribed or recommended for all patients with an infection during the study weeks. The MIKSTRA data comprised of 23.002 first consultations for an infection: 2.448 patients were diagnosed as having AMS. Altogether, 41% of them received some symptomatic medicine. Antihistamines with or without sympathomimetics were the most commonly prescribed or recommended symptomatic medicines (23% of the patients). For comparison, systemic antibacterial agents were prescribed for 93% of the AMS patients. We conclude that Finnish physicians recommend or prescribe more symptomatic medication without proven efficacy for AMS than recommended by the national guidelines. Especially, the use of antihistamines with or without sympathomimetics, mostly the combination of acrivastine and pseudoephedrine, was common although antihistamines were recommended only for patients with allergy or nasal polyps.

Implementing guidelines on acute maxillary sinusitis in general practice--a randomized controlled trial

BACKGROUND

Management of acute maxillary sinusitis (AMS) is not optimal; antibiotics are often prescribed for viral sinusitis, which leads to many problems including those with antimicrobial resistance. Guidelines have been proposed as a means to change the professional practices.

OBJECTIVE

Our aim was to study whether a nationwide guidelines implementation programme has an effect on the management of AMS in primary care.

METHODS

A multi-centre randomized controlled trial was conducted in 30 health centres (HCs) covering a population of 819 777 people from 1998 to 2002. The participating HCs were randomized to implement guidelines either according to a problem-based learning (PBL) or an academic detailing (AD) method facilitated by local GPs. Data were gathered during 1 week in November in all study years and also from external control HCs in 2002. The main outcome measure was compliance with the key points of AMS management in national Current Care guidelines.

RESULTS

Implementation of guidelines produced minor changes towards the recommended practices in the management of AMS. Use of the first-line drug amoxicillin increased slightly (from 39% to 48% in AD centres and from 33% to 45% in PBL centres, controls 40%). Proportion of courses of antibiotics with recommended duration increased in MIKSTRA study centres (from 34% to 40% in AD centres and from 32% to 47% in PBL centres, controls 43%).

CONCLUSIONS

A nationwide guidelines implementation project produced modest changes in the management of AMS. There were no significant differences between AD and PBL education methods. Less than half the HCs were able to realize the project as intended, which decreases the internal validity of the study. The guidelines implementation might have benefited of more focussed targets and approaches that took into account the problems and practices of each HC.

Cost-effectiveness of implementing national guidelines in the treatment of acute otitis media in children

Objectives: Acute otitis media (AOM) is one of the most common diseases of childhood, representing a major disease burden on the society. New evidence-based guidelines for AOM, focusing on children under 7 years of age, were introduced in Finland in 1999. The aim of this study was to evaluate the cost-effectiveness of implementing those guidelines in Finland.

Methods: A 5-year prospective trial was conducted in thirty community primary healthcare centers in Finland. All AOM patients between 0 and 6 years of age visiting the study health centers for the first time, for this episode of illness, during 1 week in November 1998 (n = 579) and November 2002 (n = 369) were included in this study. The outcome measure was the percentage of symptom-free patients.

Results: The mean direct cost of an AOM episode per patient stayed almost the same after implementing the guidelines, €152 in 1998 and €150 in 2002. After implementing the guidelines, the percentage of symptom-free patients was 10 percentage points higher than before the guidelines. The treatment after the implementation of the guidelines, thus, was a dominant strategy.

Conclusions: Implementing the guidelines to the treatment of AOM in children was associated with extra health benefits at slightly lower direct costs and, thus, is a dominant strategy. The focus of this study was on the short-term effects of the treatment; including long-term effects in the analysis might affect the results.

Management of pain in acute otitis media in Finnish primary care

Most treatment recommendations for acute otitis media favour active use of pain relief medication. These data comprised 3059 Finnish primary care acute otitis media patients. We found that 10.4% of the patients were prescribed or recommended analgesics, which is in contrast to treatment recommendations.

The Antimicrobial Treatment Strategies (MIKSTRA) Program: A 5-Year Follow-Up of Infection-Specific Antibiotic Use in Primary Health Care and the Effect of Implementation of Treatment Guidelines

BACKGROUND

A national 5-year follow-up study of infection-specific antibiotic use in primary care was conducted to see if prescribing practices change after implementing new treatment guidelines.

METHODS

The data were collected during 1 week of November each year from 1998 to 2002 from 30 health care centers that covered a total population of 819,777 persons and in 2002 from 20 control health care centers that covered a population of 545,098 persons. National guidelines for 6 major infections (otitis media, sinusitis, throat infection, acute bronchitis, urinary tract infection, and bacterial skin infection) were published in 1999-2000. Multifaceted interventions were performed by local trainers teaching his or her coworkers, supported by feedback and patient and public information.

RESULTS

The 6 infections targeted for intervention, together with unspecified upper respiratory tract infection constituted 80%-85% of all infections. The proportion of patients who received prescriptions for antibiotics did not change significantly. However, use of first-line antibiotics increased for all infections, and the change was significant for sinusitis (P<.001), acute bronchitis (P=.015), and urinary tract infections (P=.009). Also, the percentage of antibiotic treatments prescribed for the recommended duration increased significantly. Correct prescribing for respiratory tract infections improved by 6.4 percentage units (P<.001). However, there was no statistically significant difference in performance between study and control health care centers at follow-up.

CONCLUSIONS

Moderate qualitative improvements in antibiotic use were observed after multifaceted intervention, but prescribing for unjustified indications, mainly acute bronchitis, did not decrease. Obtained infection-specific information on management of patients with infections in primary health care is an important basis for planning targeted interventions in the future.

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.

Diagnostic tools in respiratory tract infections: use and comparison with Finnish guidelines

The objectives of this prospective epidemiological study were to describe the diagnosis and treatment of respiratory tract infections by Finnish general practitioners and to compare current practice with national evidence-based guidelines. All patients (n = 4386) seeking primary care for a respiratory tract infection for the first time in 30 health centres during 1 week in November 1998 participated in the study. The main outcome measures were the amounts and types of diagnostic tests used and antimicrobials prescribed. Tympanometry was used in 1% of patients with acute otitis media. Ultrasonography, sinus radiography or both were used in 80% of cases of sinusitis and antigen detection or culture for Streptococci in 57% of throat infections. In acute bronchitis, a chest radiograph was taken in 5% of cases and the CRP level determined in 8%. The corresponding figures for pneumonia were 49% and 39%. In pneumonia and throat infection, diagnostic testing was statistically significantly associated with the use of antimicrobials, but not in otitis, sinusitis or acute bronchitis. Diagnostic tests were underused in respiratory tract infections compared to evidence-based recommendations.

Antibiotic use by indication: a basis for active antibiotic policy in the community

The aim of this study was to survey current treatment practices for common infections in primary care as a basis for implementation of recently released evidence-based guidelines for community-acquired infections. A point-prevalence survey was conducted in 30 health centres in the Finnish primary care system with a population base of 819,777. All patients consulting the health centres for an infection during a 1-week period were included in the study. The main outcome measures were the prevalence of antibiotic prescription and the selection of drugs by infection diagnosis. Of the 7777 recorded consultations, 85% were with a physician and the rest with a nurse. The most common cause for a visit was respiratory tract infections (74%), followed by skin/wound infections and urinary tract infections (both 6%). The infection panorama varied markedly according to age: in the youngest children (< 5 y) 84% of the infections were respiratory tract infections whereas the corresponding figure for patients > 65 y was 50%; the proportions of visits for urinary tract infections in these age groups were 7% and 26%, respectively. Of the patients with acute bronchitis, 70% were treated with antimicrobial agents, mostly macrolides (39%) and doxycycline (36%). Of the otitis media patients, 53% were treated with amoxicillin, 16% with macrolides and 16% with sulphatrimethoprim. Macrolides were mostly used to treat otitis media (31%), acute bronchitis (26%) and sinusitis (20%). In conclusion, antimicrobial agents are still used excessively in Finland, particularly for the treatment of acute bronchitis. Moreover, the selection of drugs for treating sinusitis and otitis media is non-optimal; macrolides and cephalosporins are frequently chosen unnecessarily. Knowledge of the indication-based prescription practices for antimicrobial agents is essential in order to improve the treatment habits of primary care physicians. The data obtained in this study provide a unique tool for the active and targeted implementation of evidence-based guidelines for primary care physicians.

Indication-based use of antimicrobials in Finnish primary health care. Description of a method for data collection and results of its application

OBJECTIVE

To collect population-based information on treatment of infections with antibiotics in PHC.

DESIGN

A questionnaire study for general practitioners (GPs).

SETTING

All health centres of Pirkanmaa Hospital District in Finland.

PATIENTS

Patients with any infection attending health centre during 1 week in November 1994.

MAIN OUTCOME MEASURES

An infection diagnosis by the GP.

RESULTS

A total of 4150 questionnaires were received from 223 doctors. Respiratory tract infections comprised 80% of all infections. Of all patients 64% received antimicrobial treatment. Unspecified upper respiratory tract infections and pharyngitis were rarely treated with antimicrobials (10 and 21%, respectively), whereas patients with acute bronchitis received antibiotics as often (83%) as patients with otitis media (93%) or tonsillitis (86%). The most commonly prescribed substances were cephalosporins (19% of all antimicrobials), penicillin V (17%), and amoxycillin (17%). Half of the cephalosporin use could be regarded as overuse. Half of the sulphatrimethoprims were used for otitis media. A quarter of the patients expressed a desire to receive antibiotic treatment.

CONCLUSION

The method was practical, inexpensive, and successful in giving such information, which is needed for supervising the rational use of antibiotics in primary health care.