Læknablaðið : fylgirit - 01.06.2005, Blaðsíða 32

ABSTRACTS / XXIX CONGRESS OF THE NORDIC ASSOCIATION OF OTOLARYNGOLOGY
the ME to the atmosphere. To elucidate this question further we
have measured healthy subjects with inserted ventilation tubes.
The results showed that 10/18 subjects had a poor ME pressure
regulation like patients with chronic perforation, while the other
8 subjects had a sufficient regulation capacity like the healthy
ears without ventilation tubes. The results support the theory that
opening the ME to the atmosphere deteriorate the ME pressure
regulation capacity.
Abstract no.: 076
Otitis media in South Vietnam, prevalence and incidence in
a rural community
Balle VH, Gentofte University Hospital, Dang SH
Pediatric Hospital # 1, Ho Chi Minh City, Vietnam
Objectives: Hearing impairment is a serious condition also in
developing countries.The present study was intended to otitis
media and during this improve patient treatment. procure epi-
demiological data of otitis media in South Vietnam and to train
health personnel in diagnosing and treating
Methods: From existing vaccination lists every sixth person less
than sixteen years of age in Can Giuoc area got an invitation let-
ter to participate in the investigation.The candidates were exam-
ined by a team of ENT doctors using head lamp with lup glasses.
Pathology of the tympanic membrane was registered on a flow
sheet and entered inte SPSS software system.Chi square and Phi
coeffecient were used.
Results: 2472 children age one through fifteen years of age were
examined in spring and fall 2000.The cumulated point prevalence
for acute otitis media was found to be 1,4% with a maximum of
6,6% at age 2.1n the age group less than six years it was 2,8%.
Chronic otitis media was found to have a cumulated prevalence
of 1,2%.
Conclusion: It is concluded,that the Vietnamese Health System
is able to detect and diagnose otitis media.Prevalence of chronic
otitis media is lower than in a similar study completed 6 years
earlier,probably due to improved standard of living and better
health care.The study demonstrates,that also developing coun-
tries can provide adequate earcare if given proper training.
Abstract no.: 077
Hearing sequele of acute mastoiditis
Valgerður Rós Sigurðardóttir1, Friðrik Guðbrandsson1,2, Ingibjörg Hinriks-
dóttir1-3, Ásgeir Haraldsson1'4, Þórólfur Guðnason1-4, Hannes Petersen1-2
'Læknadeild Háskóla íslands, 2Háls-, nef- og eyrnadeild Landspítala,
3Heyrnar- og talmeinastöð Islands, 4Barnaspítali Hringsins
Introduction: Acute mastoiditis is an acute inflammatory disease
of the mastoid process and a rare but serious complication of
otitis media. Its incidence among Icelandic children increased
significantly in the years 1984-2002, concurrent with a change
in prescriptive patterns for AOM. The purpose of this study
was to evaluate the clinical course of patients hospitalised with
mastoiditis during the period and to investigate possible auditory
consequences.
Subjecfs and methods: The clinical records of all patients admit-
ted with a diagnosis of mastoiditis between 1984 and 2003 were
reviewed. 54 patients fulfilled the following inclusion criteria: signs
of AOM on otoscopy and unilateral local inflammatory findings
over the mastoid process (pain, redness, and/or protrusion of the
auricle) or signs of acute otitis media on otoscopy combined with
roentgenographic findings of unilateral mastoiditis. The pure-
tone thresholds of 31 patients at 0,25-8 kHz were determined for
both ears, the contralateral normal ear acting as control.
Results: The 54 selected patients ranged in age from 3 months
to 78 years, median 5,6 years. Eighteen children were younger
than 2 years old. The review of the clinical records showed that
20 patients had no prior history of OM. Twenty-two patients
had a history of recurrent AOM. Twelve patients had been diag-
nosed with AOM in the past, but not recurrently. Twenty-five
patients had received antibiotic treatment for AOM in the last
10 days preceding diagnosis. Eight children had been diagnosed
with AOM without receiving treatment in the 10 days preceding
admission, 4 of them were younger than 2 years old. Thirty-nine
patients presented with local inflammatory findings over the
mastoid process evident on physical examination, while 15 were
diagnosed with CT. The most frequently isolated pathogens were
s. pneumoniae (19%), p. aeruginosa (19%), s. aureus (19%) and
s. pyogenes (11%). Antibiotic treatment with or without myr-
ingotomy provided sufficient therapy in 68% of cases. Eighteen
percent of patients suffered an extra- or intracranial complication
during admission. Pure-tone audiometry demonstrated elevated
thresholds (mean 7,58±5,84 dB HL (P=0,0063)) at 8 kHz on the
ears with a history of mastoiditis compared to the contralateral
normal ears. The pure-tone average (0,25-4kHz) was elevated
by a mean of 2,94±3,45 dB HL (P=0,0458) on diseased ears com-
pared to normal ears. When patients with histories of recurrent
AOM were excluded, thresholds were similarly elevated, but the
difference between ears was not statistically significant (mean
PTA difference 2,73±5,47 dB HL, P=0,16, mean difference at 8
kHz; 5,94±8,77 dB HL, P=0,085).
Conclusions: Many cases of mastoiditis develop as a complication
of a first episode of AOM. Antibiotic therapy for AOM is not
always sufficient to prevent mastoiditis. However, we conclude
that children younger than 2 years old should be treated for AOM
as they are more prone to developing mastoiditis than older chil-
dren with AOM. The audiometric findings provide some evidence
that an episode of acute mastoiditis could lead to a permanent
sensorineural hearing loss.
Abstract no.: 078
Intracranial complications of sinusitis
Stenkvist Asplund M', Bodestedt Á2, Áström G2, Salci K3, Friberg U1
Departments of 'Otorhinolaryngology, Head & Neck Surgery, 2Radiology,
3Neurosurgery, University Hospital, Uppsala, Sweden
Six young males, aged 14-31 years, were admitted to Uppsala
University Hospital, Sweden, between November 2001 and June
2004 with sinogenic intracranial complications. Symptoms were
fever (5 patients), headache, predominantly frontal (6 patients),
vomiting (5 patients), scalp swelling (4 patients), and disturbances
in consciousness (2 patients). Focal neurology included hemipare-
sis (2 patients), aphasia (1 patient) and seizures (1 patient). CT/
32 Læknablaðið/Fylgirit 51 2005/91