Respiratory infections in schoolchildren: co-morbidity and risk factors.

AIMS: To assess co-morbidity and risk factors for otitis media, tonsillopharyngitis, and lower respiratory infections in school children. METHODS: Logistic regression analysis of co-morbidity and risk factors for airway infections in a population based sample of 10 year old children living in Oslo, Norway. MAIN OUTCOME MEASURES: otitis media, tonsillopharyngitis, and lower respiratory infections in past 12 months. RESULTS: Airway infections in 10 year old children were common, and significant co-morbidity was found between the various airway infections. Home dampness was a risk factor for all infections, adjusted odds ratios ranging from 1.2 (95% CI 1.0 to 1.5) to 1.4 (95% CI 1.1 to 1.6) for otitis media and tonsillopharyngitis respectively. Atopic disease was a constitutional risk factor, particularly strong for lower airway infections (adjusted odds ratio 2.4, 95% CI 1.8 to 3.1). African or Asian ethnicities were associated with the airway infections, adjusted odds ratios ranging from 1.2 (95% CI 0.9 to 1.7) to 1.7 (95% CI 1.2 to 2.3). CONCLUSIONS: Respiratory tract infections were common in 10 year old children. There was substantial co-morbidity between upper and lower airway infections. Environmental and constitutional factors were identified and positively associated with the infections. Results support the hypothesis of 1957 that the whole respiratory tract is one unit.

Surgery required to verify atypical mycobacterial infections.

To estimate the incidence and distribution of nontuberculuous mycobacterial surgery, a retrospective case record study of 42 children operated for cervicofacial atypical mycobacterial infections in Oslo from 1990 to 2000 was performed. Mean age at diagnosis was 41 months and mean duration of the disease was 40 weeks from symptom onset to remission. All presented with localized and unilateral disease without increased hematological parameters. The majority of children had one lesion localized in the submandibular region characterized by changes in the overlying skin color, but without necrosis or fistula formation. Children below three significantly more often presented with only one lesion and the referring physician more frequently suspected neoplasm and bacterial adenitis than reactive adenopathy in this group. Compared to older children, there was a tendency for shorter symptom duration prior to outpatient treatment (mean 4 and 13 weeks for children up to 3 and above 3 years, respectively, t=-1.6, P=0.11). Furthermore, mycobacterial cultures and histopathology from surgical specimens was needed to diagnose the disease correctly. Fine-needle aspiration biopsy was unsuccessful in 27% (n=8) of the patients, due to non-cooperative patients (n=2) or inconclusive material (n=6), and mycobacterial growth was not obtained in any of the samples. Intradermal mycobacteria skin testing yielded 29% (n=10) false negatives. Although mycobacteria was correctly diagnosed in the remaining patients, correct specimen was found in only 31% (n=11) of the 25 cases.

Labyrinthine fistula detection: the predictive value of vestibular symptoms and computerized tomography.

A retrospective case record study of 20 patients in Oslo operated on for chronic otitis media with labyrinthine fistula between 1986 and 1999 was performed in order to estimate the incidence of, and identify predictors for, labyrinthine fistulas. The incidence of fistula was 0.3 per 100 000, with a median age at diagnosis of 37 years. The median duration of chronic otitis media prior to labyrinthine fistula detection was significantly correlated with age at surgery. Subjective hearing loss (90%), otorrhoea (65%) and dizziness (50%) were presenting symptoms. Modified canal-wall-down mastoidectomy was performed in all patients. Preoperative hearing levels could not predict postoperative hearing outcome. Positive signs of fistula were found in only 4 patients (20%). Correspondingly, computerized tomography (CT) diagnosed the fistula in 11 patients (55%). The seven patients presenting without dizziness and with a negative CT scan and fistula test were characterized by lower age, absence of previous middle ear surgery, lower preoperative pure-tone thresholds for bone conduction and better hearing outcome after surgery. In conclusion, the identification of a younger group of patients presenting with fewer symptoms indicates that fistulas should be suspected in all patients undergoing surgery for chronic middle ear and mastoid disease.

Acute mastoiditis: predictors for surgery.

To estimate the incidence of acute mastoiditis and identify predictors for mastoid surgery, a retrospective case record study of 38 children hospitalised for acute mastoiditis in Oslo from 1989 to 1998 was performed. Median age at diagnosis was 18 months and 13 (34%) of the children received mastoidectomy. Compared to the period 1970-1979, the incidence of mastoidectomy was significantly reduced. Only seven children (18%) had experienced acute otitis media prior to the current episode. Symptom duration of 6 days or more prior to hospitalisation and elevated white blood cell counts and C-reactive Protein were predictive for mastoidectomy ((OR = 5.0 (1.0-22.8), (OR = 24.5 (2.5-240) and OR = 10.5 (1-108.8)). Furthermore, total time from symptom onset to hospital discharge was significantly higher in children who received mastoidectomy. We suggest early referral to an otolaryngologic department in children suspected of acute mastoiditis.

[Attitudes towards treatment of extremely premature infants in Norwegian obstetric and pediatric departments]. / Holdninger til behandling av ekstremt premature barn ved norske føde- og barneavdelinger.

The aim of this questionnaire survey was to investigate whether Norwegian hospitals have guidelines for lifesaving treatment in cases of extreme prematurity and severe morbidity. 66 out of 71 doctors in charge of Norwegian obstetric and paediatric units answered our questionnaire. 79% of the units had guidelines for starting medical treatment, 45% for ending treatment. Gestational age and the infant's vitality were the most important criteria in decisions concerning withholding of treatment. Two out of three units (44) had a lower gestational age limit, varying from 23 to 25 weeks; 41 of these 44 units used 23 or 24 weeks as the lower limit. Disability risk and the infants' suffering were the most important criteria for termination of treatment. One in five respondents attached little or no emphasis on the infants' suffering. Half of the respondents reported that they felt that making life or death decisions for premature infants had become more difficult over the last few years. Unrealistic expectations and pressure from the media and from parents were important reasons for this. We conclude equality of treatment for premature infants calls for an examination of all factors, medical and psychosocial, with a bearing on decisions.