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Emergency medicine

Dermatology Letters 20 March 2017 Free

The dangers of non-medical laser therapy for pigmented lesions

To the Editor:We present a case that illustrates the need for careful medical evaluation of pigmented lesions, and the potential risks associated with laser treatment by non-medical providers. A 56-year-old nurse presented to the Victorian Melanoma Service for management of a biopsy-proven lentigo maligna on her right cheek. The patient described an 18-month history of a growing pigmented lesion that had initially been treated by a non-medical cosmetic clinic using laser. There had been no formal clinical or dermoscopic assessment of the pigmented lesion before the laser treatment. Although initially there was complete clearance of the pigment, the lesion recurred over the following 12 months (Box), prompting the patient to seek medical advice. Relevant melanoma risk factors included a family history of melanoma and significant prior sun exposure. Pigmented lesions should only be treated by medical experts given that the diagnostic possibilities range from benign to malignant pathologies, including melanoma.1 There is an increasing tendency in the aesthetic industry to treat pigmented lesions with modalities such as laser, as if they were merely a cosmetic problem. The potentially fatal consequences of laser treatment of pigmented lesions performed by untrained providers has been described in the literature.1,2 However, causation of melanoma by laser, with resultant malignant proliferation or transformation, has not been proven.2 Nevertheless, performing laser treatments on undifferentiated pigmented lesions can delay diagnosis and lead to more devastating outcomes, including metastasis.2,3 To maintain patient safety, pigmented lesions should be assessed medically before any cosmetic treatment.2,4 There is a vast array of unregulated, non-medical cosmetic practices that may use destructive treatments, such as laser, for pigmented lesions. It is therefore essential to increase the awareness of the general public in the face of this potential danger. Box – Recurring lesion after laser therapy

Harini Rajgopal Bala · Yan Pan · Rosemary L Nixon

Cardiovascular diseases Medical education 1 August 2016 Free

Cardiac tamponade in undiagnosed systemic lupus erythematosus

A 22-year-old woman presented with a 3-day history of fever, retrosternal chest pain and exertional dyspnoea. Her heart rate was 130 bpm with a blood pressure level of 109/68 mmHg. Physical examination suggested tamponade: distended jugular veins, pulsus paradoxus and muffled heart tones. The chest radiography was notable for the characteristic water-bottle sign (Figure, A).1 Contrast-enhanced chest computed tomography demonstrated a massive pericardial effusion (Figure, B) associated with venous engorgement of the superior and inferior vena cava (SVC, IVC), prevascular space (arrows), and bilateral axillary veins (arrowheads). An emergency thoracoscopic pericardial window was performed and 620 mL of bloody fluid was drained. The presence of anti-nuclear, anti-double-stranded DNA, anti-Smith antibodies and hypocomplementaemia supported the diagnosis of systemic lupus erythematosus.2 The patient recovered after 1 week of intravenous methylprednisolone pulse therapy. At an 8-month follow-up, there have been no recurrences. Figure A B

Tsung-Han Ho · Yi-Tin Tsai

16 00286
Health services administration Research 16 May 2016 Free

The National Emergency Access Target (NEAT) and the 4-hour rule: time to review the target

Improving NEAT compliance rates can significantly reduce the in-hospital mortality of emergency admissions

Clair Sullivan MB BS(Hons), MD, FRACP · Andrew Staib MB BS, FACEM · Sankalp Khanna PhD · Norm M Good MSc · Justin Boyle PhD, BEng · Rohan Cattell PhD · Liam Heiniger BSc(SciStat)(Hon) · Bronwyn R Griffin BN, PhD, GdipEmerg · Anthony Jr Bell FACEM, MPH, FRACMA · James Lind BS BM, BMedSci, FACEM · Ian A Scott FRACP, MHA, MEd

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