Læknablaðið : fylgirit - 01.06.2005, Blaðsíða 15

ABSTRACTS / XXIX CONGRESS OF THE NORDIC ASSOCIATION OF OTOLARYNGOLOGY
vimentin, CDIO and PNRA were positive and cytokeratin7 nega-
tive suggesting renal cell origin of the tumor which was confirmed
in ultrasonography.
Conclusions: Clinical and radiological evaluation and diagnosis
by fine needle aspiration may prove difficult partly due to the
vascular nature of parotid metastasis of renal cell carcinoma.
Immunohistochemical characteristics are useful in identifying the
primary tumor.
Abstract no.: 014
Effect of ultrasound guided interstitial laser photocoagu-
lation on benign solitary solid cold thyroid nodules - 1
versus 3 treatments
D0ssing H, Odense University hospital, Bennedbæk FN, Odense Uni-
versity hospital, Hegediis L, Odense University hospital, Denmark
Aiin: To evaluate the effect of interstitial laser photocoagulation
(ILP) on thyroid nodule size and patients satisfaction in a pro-
spective randomised study, comparing one ILP treatment with
three ILP treatments.
Design: 30 euthyroid outpatients with a cytologically benign soli-
tary solid and scintigraphically cold thyroid nodule causing local
discomfort were assigned to one session of ILP (ILP-1) (n=15)
or three monthly ILP sessions (ILP-3) (n=15) and followed for 6
months. ILP was performed under continuous ultrasound (US)-
guidance and with an output power of 2.5-3.5 W. Thyroid nodule
volume was assessed by US during follow-up. Pressure and cos-
metic complaints before and at 6 months were evaluated on a
visual analogue scale.
Results: In the ILP-1 group, thyroid nodule volume decreased
from 10.1± 4.3 mL (mean ± SD) to 5.7± 3.2 mL (P= 0.0001), and
in the ILP-3 group from 10.8± 5.5 mL to 4.6± 3.0 mL (P=0.001)
during follow-up. The overall mean difference between the two
groups was 13% (P=0.03). In both groups pressure symptoms and
cosmetic complaints were significantly reduced. No major side
effects were seen in either group.
Conclusion: ILP is a safe procedure and could become a non-sur-
gical therapeutic option in selected patients with a benign solitary
cold thyroid nodule.
Abstract no.: 015
Laser treatment of laryngeal cancer in Lund, Sweden
Rydell R, Phoniatrics, ENT, Lund, Sweden
In the period 1993-2002 a total of 122 patients with severe dyspla-
sia, carcinoma in situ, suspected early invasion, cancer or salvage
after radiotherapy failure have been treated with C02 laser. The
T-class was T1 for all but 5 T2:s.
The time of follow up was 9 to 2 years. All patients with severe
dysplasia (11/11) or carcinoma in situ (14/14) were cured. One
patient with suspected early invasion had residual cancer at follow
up, one was given radiotherapy, one radiotherapy/laryngectomy
and 2 patients had second primaries. In this group 12/13 (92 %)
were locally free from disease and 10/13 (77 %) were cured. In
the group with verified cancer 72/74 (97 %) were locally free
from cancer, but 9 of the patients were given radiotherapy and
one patient radiotherapy/ laryngectomy. Two patients had second
primaries, 2 died of metastasis, 1 died of second primary and 1
of other cause. At latest follow up, 67/74 (91 %) were alive and
healthy. Laryngectomy was performed on 3 of the patients where
we tried salvage with laser after radiotherapy failure. One had a
second primary and 1 died of other cause.
Abstract no.: 016
Surgical treatment of plunging ranula
Anna Hafstrom, Peter Wahlberg, Dept of Otorhinolaryngology, Head and
Neck Surgery, Lund University Hospital, 221 85 Lund, Sweden
Background: Ranulas are cystic lesions in the floor of the mouth
with origin from the sublingual gland. A plunging ranula mani-
fests itself as a fluctuating non-tender swelling in the neck and
has plunged below the mylohyoid muscle. A plunging ranula is
a relatively rare disorder and until recently only about 100 cases
were presented in the Iiterature and different methods for best
treatment have been recommended by different authors. Some
advocate a marsupialization, others as a total removal of the sub-
lingual gland. Different opinions have been presented whether an
intra oral or cervical approach is the best, and if it is enough to
evacuate the cystic contents.
Patients and methods: Six patients, 2 women, 4 men; mean age 27
(range 6-75 years), underwent surgery because of a plunging ran-
ula from 1998 to 2004 in Lund, Sweden. Eight surgical procedures
were performed. The patient workups, imaging studies including
the pathognomonic ‘tail -sign’, differential diagnoses, treatment
results and the risk of postoperative complications are compared
with findings in the literature.
Conclusion: We recommend an intraoral removal of the sublin-
gual gland as the best treatment modality for a plunging ranula
since no recurrences and no substantial complications was found
with this method.
S-V SLEEP DISORDERS
Abstract no.: 017
Operations on patients with OSAS
Sigurður Júlíusson, Department of Otolaryngology, Landspítali University
Hospital, 105 Reykjavík, Iceland
Obstructive sleep apnea is a serious medical problem produc-
ing both physical and behavioral derangement. It is essential to
provide a thorough workup and evaluation of all patients seek-
ing care for sleep disordered breathing. Polysomnography is the
standard for evaluation and assessment of the severity of OSA in
every patient. CPAP therapy is the gold standard for treatment
of patients with obstructive sleep apnea. Oral devices have been
shown to be effective in about 50-70% of patients with OSA.
Surgical intervention of OSA and snoring has the intention of
reducing or by-passing the upper airway resistance and requires
understanding of the pathophysiology and anatomical contribu-
Læknablaðið/Fylgirit 51 2005/91 15