[Summary of the practice guideline 'Hearing impairment' (first revision) from the Dutch College of General Practitioners]

The Dutch College of General Practitioners recently issued a revised version of the practice guideline 'Hearing impairment'. The modification of the screening for hearing impairment, which now takes place in neonates, has resulted in a much lower number of false-positive diagnoses of perceptive hearing loss than under the previous version of the practice guideline. The expanded diagnostic possibilities for adults, whether or not implemented by the patients themselves, demand an active approach from the general practitioner towards patients with impaired hearing. This guideline helps general practitioners to select patients that will truly benefit from a hearing aid and that will also be more likely to use one. The general practitioner can play an important role by stimulating patients to be referred for a hearing aid.

[Summary of the practice guideline 'Problematic alcohol consumption' (second revision) from the Dutch College of General Practitioners]

Compared with the former guideline, more attention is paid to the attitude of the general practitioner towards problem drinkers (about 200 problem drinkers in a standard practice of 2350 patients) and the combined use of alcohol and drugs among young people. The five-shot questionnaire has replaced the earlier 'cutdown, annoyed, guilty, eye-opener' (CAGE) test. Laboratory tests are of little value in the diagnosis. The general practitioner is given tools with which to motivate problem drinkers to change their behaviour. Medication is of minor importance.

[Summary of the practice guideline 'Diabetes mellitus type 2' (second revision) from the Dutch College of General Practitioners]

The practice guideline 'Diabetes mellitus type 2' (second revision) addresses the diagnosis, treatment and management of adults with diabetes mellitus type 2 in general practice. The aim of management is the prevention and treatment of diabetes-related symptoms and complications such as cardiovascular disease, nephro-, retino- and neuropathy. The general practitioner gives the patient education and lifestyle advice and repeats this regularly. In addition, the general practitioner and the patient strive to achieve good glycaemic control. The agent of first choice in the medicinal treatment of all type 2 diabetic patients is metformin. This is continued even after the addition of a sulphonylurea derivative or insulin. This represents a change compared to the previous version of the practice guideline. The indications for thiazolidinediones are limited. To reduce the cardiovascular risk, it is advised to aim at a systolic blood pressure below 140 mmHg. It is also recommended that each patient be prescribed a statin, unless the patient belongs to a subgroup in which the indication for cholesterol lowering therapy is weak or the patient refuses it. Compared to the former guideline, more emphasis is placed on the prevention of nephropathy. The general practitioner is advised to calculate the creatinine clearance yearly and to test for relevant albuminuria in each patient with a life expectancy of 10 years or more. If microalbuminuria is present, the patient is prescribed an angiotensin converting enzyme (ACE) inhibitor, even if the blood pressure is not elevated. The detection of patients with a high risk of diabetic ulcer is also given more emphasis.

[Summary of the practice guideline 'Otits media with effusion' (second revision) from the Dutch College of General Practitioners]

Most children pass through a period of otitis media with effusion, which can be considered as a normal reaction of the body to viral or bacterial infections. The general practitioner provides education and advice regarding the favourable prognosis of the hearing loss and is alert to the detection of high-risk groups and an aberrant course. In most children with otitis media with effusion, the general practitioner can wait for the disease to take its natural course. Children with persistent otitis media with effusion whose development is retarded should be referred to an otorhinolaryngologist. The former screening for perceptive hearing loss in infants resulted in the detection of many children with otitis media with effusion. Children with abnormal results on the new form of neonatal auditory screening should preferably be referred to a centre for audiology.

[Summary of the practice guideline 'Heart failure' (first revision) from the Dutch College of General Practitioners]

The guideline entitled 'Heart failure' from the Dutch College of General Practitioners has been revised. The general practitioner makes the diagnosis of heart failure in a patient with the core symptoms (dyspnoea, fatigue, oedema) in combination with paroxysmal nocturnal dyspnoea, orthopnoea, crepitations, elevated central-venous pressure, a third heart sound or ifictus cordis is visible outside the mid-clavicular line. Further investigations include a panel of laboratory investigations, an ECG and possibly echocardiography and radiographic chest investigations. One new recommendation is that on suspicion of heart failure the plasma concentrations of B-type natriuretic peptide (BNP) or N-terminal pro-BNP should be investigated. The step-by-step medication plan has been changed; beta-blockers have been introduced to the plan. In the treatment of acute heart failure, rapidly working sublingual nitrates should be given first and foremost.

[Use of alcohol during conception, pregnancy and lactation]

Recently, the Dutch Health Council published a report on the risks of the use of alcohol during conception, pregnancy and lactation. Because the medical literature does not prove the safety of the use of small amounts of alcohol, the Health Council recommends using no alcohol whatsoever. One may wonder whether the advice of the Health Council is not too rigid. Since Karl Popper, it is evident that the truth of the hypothesis that the consumption of small amounts of alcohol is safe will never be verified. Because the medical literature also does not prove the harmfulness of the irregular use of small amounts of alcohol, it is not necessary to upset pregnant women who occasionally take an alcoholic beverage. It is preferable to use no alcohol; however, the rare consumption of a single glass does not seem to be harmful.

[Summary of the practice guideline 'Miscarriage' (second revision) from the Dutch College of General Practitioners (NHG)]

The NHG practice guideline 'Miscarriage' provides guidelines for the diagnosis and management of pregnant women with vaginal bleeding during the period up to and including the 16th week after the first day of the last menstruation. The guideline has been revised on the basis of the developments over the last few years. The most important modifications are: In case of an imminent miscarriage, more consideration than before is given to the patient's preference with regard to ultrasonography, expectant management and curettage. The GP should therefore discuss the advantages and disadvantages of these options with the patient. A midwife was involved in the formulation of the new guideline. Referral from a GP to a midwife for transvaginal ultrasonography is offered as one of the possibilities. The paragraph on 'information' has been expanded on the basis of the results of a patient focus group.

[Summary of the practice guideline 'Stable angina pectoris' (second revision) from the Dutch College of General Practitioners]

Typical angina pectoris is characterised by retrosternal complaints that are provoked by exertion, cold, emotional stress or heavy meals and are relieved by rest within 15 minutes or within a few minutes of using sublingual nitroglycerin. If 2 or 3 of these symptoms are present then the term 'atypical angina pectoris' is used. The general practitioner can estimate the risk of significant coronary artery disease on the basis of the anamnesis. Additional diagnostics in the form of an exercise ECG is only worthwhile if the pretest probability of coronary artery disease lies between 30% and 70% (atypical angina pectoris) and not if the diagnosis is extremely likely or extremely unlikely. Patients with angina pectoris should be informed about the alarm symptoms which can be indicative of unstable angina pectoris or acute myocardial infarction. Sublingual nitrate therapy is used for the short-term control of angina. If more than 2 attacks per week occur, a maintenance treatment consisting of beta-blockers, nitrates, or calcium channel blockers should be started in this order of preference. For secondary prevention, acetylsalicylic acid and statins should be prescribed and lifestyle advice should be given, such as smoking cessation, sufficient physical exercise and a healthy diet.

[Summary of the practice guideline 'Peripheral vascular disease' (first revision) from the Dutch College of General Practitioners]

Peripheral vascular disease is a manifestation of atherosclerosis and may occur with or without signs or symptoms. The local prognosis is worse with signs or symptoms. The concomitant atherosclerosis in heart and brain is responsible for long-term morbidity and mortality. Absence of signs and symptoms almost excludes peripheral vascular disease, but for the diagnosis an ankle-brachial index is mandatory. This implies a protocol in general practice. Treatment of peripheral vascular disease consists of advice on cardiovascular risk factors, stopping smoking, walking exercises, and foot care. For peripheral vascular disease, anti-thrombotic medication is advised.

[Summary of the practice guideline 'Hypertension' (third division) from the Dutch College of General Practitioners]

The revised practice guideline on hypertension from the Dutch College of General Practitioners has been brought in agreement with the guideline on hypertension from the Dutch Institute for Health Care Improvement. The main changes with regard to the former edition are: The threshold values for the diagnosis 'hypertension' have been lowered to 140 mmHg and 90 mmHg for the systolic and diastolic blood pressures, respectively. Annual screening for hypertension in the elderly is no longer recommended. Henceforth, blood pressure measurement once every five years is considered sufficient, unless the blood pressure is known to be in a borderline area in which treatment is being considered. Often, the decision as to whether a patient should take antihypertensive drugs no longer depends on the presence of hypertension as such: to receive drug treatment, the patient should have at least a 20% risk of developing a cardiovascular disease in the next 10 years. To aid in estimating this risk for individual patients a risk table has been devised. Diuretics and beta-blockers are the drugs of first choice. If the blood pressure remains too high, angiotensin-converting-enzyme (ACE) inhibitors and calcium-channel blockers may be added.

[Summary of the practice guideline 'Rheumatoid arthritis' (first revision) from the Dutch College of General Practitioners]

The guideline covers the evaluation of patients with one or more painful joints without previous injury and focuses on the distinction between rheumatoid arthritis and other joint complaints. In the case of rheumatoid arthritis, the arthritis is based on aseptic synovitis and is nearly always associated with tenderness, warmth, swelling, and impaired function. Redness is not present in most cases. The diagnosis is primarily made on the basis of the case history and physical examination. Laboratory tests and X-ray are only of secondary importance. NSAIDs are recommended as the initial treatment for patients with rheumatoid arthritis or serious indications for this. If the arthritis does not settle within a period of 6 to 12 weeks after the onset of the complaints, the patient should be referred to a rheumatologist to start treatment with one or more disease-modifying antirheumatic drugs (DMARDs). DMARDs suppress the activity of the disease and can prevent joint damage. However, which combination of DMARDs gives the best results is still unclear.

[Summary of the Dutch College of General Practitioners' practice guideline 'Diagnosis of breast cancer']

The general practitioner should encourage women aged 50-75 who are eligible for the national screening program for the early detection of breast cancer to participate. When any abnormalities are seen on the mammogram, the general practitioner should refer the woman for further investigations and inform her about the procedure to be followed. In the case of a lump, a mammogram or ultrasound examination of the breasts is indicated, unless the abnormality disappears during a different phase of the woman's menstrual cycle. Local pain and brown or bloody discharge from the nipples also necessitate further investigation. Women with a greater than 20% risk of ever developing breast cancer during their life based on a positive family history for breast cancer have an indication for periodic examination of the breasts and a mammogram before they are 50. If the risk is greater than 30%, consultation with a clinical geneticist can be suggested.

[Summary of the practice guideline 'Refraction errors' from the Dutch College of General Practitioners]

The practice guideline 'Refraction errors' from the Dutch College of General Practitioners describes the examinations that need to be carried out in patients complaining about a gradual loss of vision. A measurement of vision by means of a Snellen chart is insufficient to determine if the condition is caused by a refraction error or if other pathology of the eye such as cataract, glaucoma or retinopathy is involved. It is therefore recommended that the vision should also be measured with a simple device containing spherical lenses of +0.5 and -0.5 dioptre, so-called diagnostic refraction. Improvement of vision with the negative lens indicates myopia. Improvement or at least a stable vision with the positive lens makes hyperopia very likely. Diagnostic refraction, which can be used in patients of six years and older, enables the general practitioner to distinguish between patients needing glasses or contact lenses, and patients requiring referral to an ophthalmologist.