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1.
Br J Dermatol ; 167(6): 1215-23, 2012 Dec.
Article in English | MEDLINE | ID: mdl-22804872

ABSTRACT

Port-wine stain (PWS) birthmarks are one class of benign congenital vascular malformation. Laser therapy is the most successful treatment modality of PWS. Unfortunately, this approach has limited efficacy, with only 10% of patients experiencing complete blanching of the PWS. To address this problem, several research groups have developed technologies and methods designed to study treatment outcome and improve treatment efficacy. This article reviews seven optical imaging techniques currently in use or under development to assess treatment efficacy, focusing on: reflectance spectrophotometers/tristimulus colorimeters; laser Doppler flowmetry and laser Doppler imaging; cross-polarized diffuse reflectance colour imaging system; reflectance confocal microscopy; optical coherence tomography; spatial frequency domain imaging; and laser speckle imaging.


Subject(s)
Diagnostic Imaging/methods , Port-Wine Stain/diagnosis , Humans , Laser Therapy , Laser-Doppler Flowmetry/methods , Port-Wine Stain/surgery , Severity of Illness Index , Treatment Outcome
2.
Med J Malaysia ; 58(4): 526-32, 2003 Oct.
Article in English | MEDLINE | ID: mdl-15190628

ABSTRACT

The cornerstone of asthma management is achieving adequate symptom control and patient education. We studied in our local population of asthmatic patients how well their symptoms were controlled with currently prescribed treatment and their insight into the disease and its management. Over a 6-month period, 93 asthmatics recruited from two local government health clinics and a state hospital were interviewed using a standard questionnaire. Patients were classified into 4 groups based on the treatment they were on according to Global Initiative for Asthma (GINA) treatment guidelines. The number of patients in Step 1 (rescue medication alone), Step 2 (1 controller medication), Step 3 (2 controller medications) and Step 4 (at least 3 controller medications) were 8, 39, 34 and 12, respectively. Except for day symptoms in Step 1 group, fewer than 50% achieved minimum day or night symptoms and no restriction of daily activities. Questions on patient insight were only available for 50 patients. Weather change (74%), air pollution (66%) and physical stress (46%) were the three highest ranked common asthma triggers. More than half correctly recognized the important symptoms of a serious asthma attack but fewer than 15% were familiar with the peak flow meter and its use or with the asthma self-management plan. Most patients perceived that their treatment had helped reduce disease severity and exacerbations. We conclude that symptom control and some aspect of patient education are still lacking in our local asthmatics.


Subject(s)
Asthma/physiopathology , Asthma/psychology , Sickness Impact Profile , Adolescent , Adult , Aged , Anti-Asthmatic Agents/therapeutic use , Asthma/drug therapy , Female , Humans , Malaysia , Male , Middle Aged , Patient Education as Topic , Prospective Studies , Risk Factors , Surveys and Questionnaires , Urban Population
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