Systematic review of the occurrence of infantile colic in the community.

AIMS: To assess the occurrence of infantile colic in the community and the need for professional help; and to study the influences of potential determinants of infantile colic. METHODS: Surveys were identified by a systematic search in Medline (1966-98) and Embase (1988-98). Retrieved publications were checked for references. Studies selected were community based, prospective, and retrospective surveys on the occurrence of infantile colic published in English, German, French, or Dutch. Occurrence rates were calculated as percentages. Methodological quality of the surveys was assessed by two assessors independently with a standardised criteria list containing items on method of data gathering, definition of colic, and drop out rate. RESULTS: Fifteen community based surveys were identified. The methodological quality varied considerably and was generally low. Even the two most methodologically sound prospective studies yielded widely varying cumulative incidence rates of 5-19%. Referral rates or the need to seek help because of crying were consistently lower than occurrence rates for prolonged crying as such. Gender, socioeconomic class, type of feeding, family history of atopy, and parental smoking were not shown to be associated with colic. CONCLUSION: Occurrence rates of infantile colic vary greatly according to methodological quality. A considerable number of parents reporting prolonged crying do not seek or need professional help.

Beta-haemolytic streptococci isolated from acute sore-throat patients: cause or coincidence? A case-control study in general practice.

As beta-haemolytic streptococci can be cultured in people with and in those without a sore throat, a case-control study was set up in 43 family practices in The Netherlands. The association was tested between the number of colony counts, specific T/M types and exotoxin genes and an acute sore throat. Duplicate throat swabs were taken from 663 sore-throat patients, selected by clinical criteria, and from 694 healthy controls. They were cultured for beta-haemolytic streptococci by combining several updated laboratory methods. Approximately 40% of the controls and 80% of the patients had beta-haemolytic streptococci-positive cultures. When focusing on cultures with high colony counts, not only group A (46%), but also non-group A streptococci (20%), predominated significantly in adult patients compared with controls. No T/M or exotoxin gene type was significantly more prevalent in patients than in controls. Thus, semiquantitative analysis, but not T/M and exotoxin gene typing, showed an association between beta-haemolytic streptococci and active disease. Groups A, C and G streptococci were found to be potentially pathogenic in adult sore-throat patients, and should be included in the discussion on the use of rapid antigen detection tests and penicillin treatment in primary care.

Penicillin for acute sore throat: randomised double blind trial of seven days versus three days treatment or placebo in adults.

OBJECTIVE: To assess whether treatment with penicillin for three days and the traditional treatment for seven days were equally as effective at accelerating resolution of symptoms in patients with sore throat compared with placebo. DESIGN: Randomised double blind placebo controlled trial. SETTING: 43 family practices in the Netherlands. PARTICIPANTS: 561 patients, aged 15-60 years, with sore throat for less than seven days and at least three of the four Centor criteria-that is, history of fever, absence of cough, swollen tender anterior cervical lymph nodes, and tonsillar exudate. 142 patients were excluded for medical reasons and 73 needed penicillin. INTERVENTIONS: Patients were randomly assigned to penicillin V for seven days, penicillin V for three days followed by placebo for four days, or placebo for seven days. MAIN OUTCOME MEASURES: Resolution of symptoms in the first week, eradication of bacteria after two weeks, and recurrences of sore throat after two, four, and six months. RESULTS: Symptoms resolved 1.9 and 1.7 days earlier in patients taking penicillin for seven days than in those taking penicillin for three days or placebo respectively. Symptoms resolved 2.5 days earlier in patients with group A streptococci and 1.3 days earlier in patients with high colony counts of non-group A streptococci. 23 (13%) of the placebo group had to be given antibiotics later in the week because of clinical deterioration; three developed a peritonsillar abscess. The eradication rate for group A streptococci was 72% in the seven day penicillin group, 41% in the three day penicillin group, and 7% in the placebo group. Sore throat recurred more often in the three day penicillin group than in the seven day penicillin or placebo groups. CONCLUSION: Penicillin treatment for seven days was superior to treatment for three days or placebo in resolving symptoms of sore throat in patients with group A streptococcal pharyngitis and, possibly, in those with non-group A streptococcal pharyngitis.

Infantile colic: crying time reduction with a whey hydrolysate: A double-blind, randomized, placebo-controlled trial.

OBJECTIVE: To determine the effectiveness of whey hydrolysate formula in the treatment of infantile colic in a primary care setting in the Netherlands. STUDY DESIGN: Randomized, double-blind, parallel trial with a 1-week qualification period and a 1-week intervention period. Participants. Forty-three healthy, thriving, formula-fed infants, <6 months old, crying >3 hours per day on at least 3 days per week. Infants were randomized to whey hydrolysate formula (n = 23) or standard formula (n = 20). MAIN OUTCOME MEASURE: Difference in duration of crying (minutes per day) between qualification week and intervention week. RESULTS: Analysis according to the intention to treat principle showed a difference in the decrease of crying duration of 63 minutes per day [95% confidence interval: 1-127 minutes per day] in favor of the whey hydrolysate formula. Five infants did not complete the trial. The scope of the study was not sufficient to expect significant differences in the subgroup analyses. CONCLUSIONS: An extensively hydrolyzed whey formula is effective in reducing the duration of crying in a primary care setting.

Effectiveness of treatments for infantile colic: systematic review.

OBJECTIVE: To evaluate the effectiveness of diets, drug treatment, and behavioural interventions on infantile colic in trials with crying or the presence of colic as the primary outcome measure. DATA SOURCES: Controlled clinical trials identified by a highly sensitive search strategy in Medline (1966-96), Embase (1986-95), and the Cochrane Controlled Trials Register, in combination with reference checking for further relevant publications. Keywords were crying and colic. STUDY SELECTION: Two independent assessors selected controlled trials with interventions lasting at least 3 days that included infants younger than 6 months who cried excessively. DATA SYNTHESIS: Methodological quality was assessed by two assessors independently with a quality assessment scale (range 0-5). Effect sizes were calculated as percentage success. Effect sizes of trials using identical interventions were pooled using a random effects model. RESULTS: 27 controlled trials were identified. Elimination of cows' milk protein was effective when substituted by hypoallergenic formula milks (effect size 0.22 (95% confidence interval 0.09 to 0.34)). The effectiveness of substitution by soy formula milks was unclear when only trials of good methodological quality were considered. The benefit of eliminating cows' milk protein was not restricted to highly selected populations. Dicyclomine was effective (effect size 0.46 (0.33 to 0.60)), but serious side effects have been reported. The advice to reduce stimulation was beneficial (effect size 0.48 (0.23 to 0.74)), whereas the advice to increase carrying and holding seemed not to reduce crying. No benefit was shown for simethicone. Uncertainty remained about the effectiveness of low lactose formula milks. CONCLUSIONS: Infantile colic should preferably be treated by advising carers to reduce stimulation and with a one week trial of a hypoallergenic formula milk.

[Outpatient preoperative examination by the anesthesiologist. II. Patient satisfaction]. / Het poliklinische preoperatieve onderzoek door de anesthesioloog. II. Tevredenheid bij patiënten.

OBJECTIVE: To determine patient satisfaction after the reorganisation of the preoperative screening. SETTING: General Hospital De Weezenlanden, Zwolle, The Netherlands. DESIGN: Retrospective patient interview. METHOD: Before the reorganisation, the preoperative screening was performed clinically under the responsibility of the consultant surgeon. Thereafter it was performed in the outpatient department by the anaesthesiologist. Patients who had had two similar operations within two and a half years, one before and one after the reorganisation, were interviewed at home regarding the different methods of preoperative screening (n = 94). RESULTS: The preoperative screening had a reassuring effect on patients. 72% considered preoperative anaesthesia information important. The number of hospital visits before the operation did not significantly increase after the screening was reorganised. There was little objection to attending the hospital for preoperative screening (12%). Most patients (60%) had no preference for the previous or the present method of screening. Patients who remembered the interview with the anaesthesiologist (56%) preferred the new method (score: 8.2 on a scale 0-10; score of the former method: 7.6; p < 0.01). A larger number of these had the opportunity to ask questions (p = 0.01) and more patients had received attention from the anaesthesiologist (p < 0.01). 75% of the patients had received sufficient preoperative anaesthesia information. 28% of the patients wanted to see the anaesthesiologist again after admission. CONCLUSIONS: Preoperative screening reassures and informs the patient. The patients who could remember the interview with the anaesthesiologist preferred the preoperative screening in the outpatient department. A considerable number of the patients wanted to see the anaesthesiologist again after admission.

A randomized trial of exercise therapy in patients with acute low back pain. Efficacy on sickness absence.

STUDY DESIGN: A randomized, placebo-controlled trial in which patients received either usual care by a general practitioner (information and analgesics), or placebo physiotherapy given by a physiotherapist, or exercise therapy given by a physiotherapist. OBJECTIVE: To assess the efficacy of exercise therapy on sickness absence from work in patients with acute low back pain. SUMMARY OF BACKGROUND DATA: Exercise therapy during the nonchronic phase of back pain is considered to reduce sickness absence, but this opinion is controversial. METHODS: Patients with acute nonspecific low back pain and a paid job were included for analysis. Sickness absence (number of days) was checked monthly during the 1-year follow-up period and compliance was also assessed. RESULTS: From 40 general practices 363 patients who were gainfully employed were included. In the exercise therapy group the percentage of patients with sickness absence was higher and the duration of absence was longer than in the placebo and usual care groups, but these differences were not significant. Indications of more absence in the exercise therapy group appeared to be based largely on a greater number of patients with absences during the first 3 months. Patients in the exercise group who had not reported sick at entry had more sickness absences during the follow-up year than patients in the usual care and placebo group. Good compliance did not affect the results. CONCLUSIONS: Exercise therapy for patients with acute low back pain does not reduce sickness absence.

A randomized, placebo-controlled trial of exercise therapy in patients with acute low back pain.

To assess the efficacy of exercise therapy for acute low back pain, a randomized, placebo-controlled trial was performed in 40 Dutch general practices. Patients received either exercise instruction with advice for daily life by a physiotherapist; placebo ultrasound therapy by a physiotherapist; or usual care by the general practitioner. All patients received analgesic agents and information on low back pain before randomization. Four hundred seventy-three patients were included. No differences in number of recurrences, functional health status, or medical care usage could be found among the three groups. In the exercise group, duration of recurrences was shorter and patients were less tired during the first 3 months than in the usual care group, but no differences were found between the exercise and placebo groups. It was concluded that exercise therapy for patients with acute low back pain has no advantage over usual care from the general practitioner.