U
SER
M
ANUAL
&
T
ECHNICAL
D
ESCRIPTION
N-LINEpro_User Manual_2018-09-20.doc
MEDlight GmbH
Werrestr. 94
32049 Herford
Germany
Phone: +49 5221 99429-0
Fax: +49 5221 99429-40
e-mail: [email protected]
www.medlight.eu
Page 22 of 30
A combination of photochemotherapy with Methotrexate is possible. The rare reactivation of
UV erythemas, due to MTX intake, must be taken into account.
Under treatment with Azathioprine, UVA may have a mutagenic effect by oxidative DNA
damage.
Source: Prof. Dr. E. Hölze, et Al. ‚Empfehlungen zur Phototherapie und Photochemotherapie‘ DDG Berlin 2009
7
TREATMENT RECOMMENDATIONS
7.1
Treatment Instructions
Already before a treatment starts, and of course whenever the UV tubes are on, anyone in
view of the device must wear protective UV blocking glasses. The patient must wear tightly
fitting UV blocking goggles before the cabin is entered, and at all times during treatment.
The operator must ensure that the patient takes the correct treatment position and remains
in that position throughout the treatment. For this, the patient must stand on the corresponding foot
markings of the floor plate and face the door. In addition, the patient should hold on to the handrails on
the left and right of the door. As additional safety measure the Velcro noose of the ripcord emergency
switch should be affixed to the right upper arm of the patient.
The patient can turn the patient fan on or off himself as needed via the correspondingly marked switch
in the patient panel.
The patient must be instructed to stand as still as possible in the middle of the cabin, to ensure all
around uniform exposure distances to the UV tubes during treatment.
Special attention must be paid to very tall patients, who are 2 meter (6.5') or taller. There should always
be a clearance of at least 5 cm (2") between the head of the patient and the roof of the cabin. This
ensures, that the head of the patient does not impair the measurements of the sensors, which could
otherwise lead to interferences of the dosimetry. If necessary, the patient must slightly crouch down
during treatment to ensure a sufficient distance to the sensors.
For corpulent patients, it must be ensured that there's a distance of at least 15 cm (6") between
pronounced body areas (e.g. belly, buttocks) and the acrylic lamp covers, otherwise the shorter
exposure distances might lead to partial erythemas. In order to avoid erythemas in these cases, a
reduction of the required dose might be a viable option. However, patients with a body weight of more
than 180 kg (395 lb) must not be treated in the N-LINEpro.
7.2
UVB – Treatment Recommendations
In order to avoid any undesirable interaction between light and any topical preparations and to make
full use of the photo therapeutically effect, the patient's skin should be free from such topical
preparations before phototherapy is performed. Cutaneous scales should be thoroughly removed.
At least 20-30 sessions will be necessary before disappearance of symptoms, depending on their clinical
appearance. Irregularly performed treatments can impair or even jeopardize the therapeutically
success. Regular treatment will assure a satisfactory healing process until symptoms disappear.