Interpersonal violence and violent re-injury in the Northern Territory.

OBJECTIVES: To analyse incidence of prior emergency department presentations for interpersonal violence and demographics for a series of hospital admissions for interpersonal violence injuries. DESIGN: Retrospective analysis of trauma registry. SETTING: A tertiary hospital and primary referral centre for trauma in the Top End of the Northern Territory. PARTICIPANTS: Patients hospitalised from 2010 to 2015 for injuries due to interpersonal violence with an injury severity score > 9. MAIN OUTCOME MEASURES: Patient demographics, injury location, assault mechanism, alleged perpetrator, time/day of event, alcohol involvement, clinical outcome and prior emergency department presentations for interpersonal violence. RESULTS: A total of 248 admissions for patients with Injury Severity Score > 9 due to interpersonal violence were identified. Indigenous females over-represented non-Indigenous females (35.4% vs 5.0%, P < .001). The majority of victims had evidence of alcohol intake at presentation. Victims of single-punch head injuries were mostly male and non-Indigenous, whilst Indigenous persons experienced significantly more blunt and penetrating weapon injuries (66.7% and 68.1%). Forty-three per cent of patients had a preceding emergency department presentation for interpersonal violence; female gender, Indigenous ethnicity, evidence of alcohol intake, and urban location of injury were independent risk factors for prior interpersonal violence presentation. CONCLUSIONS: Interpersonal violence is a recurring disease for a just under half of those presenting to a Top End hospital with moderate to severe injuries. Indigenous ethnicity, female gender and evidence of alcohol intake are predictive of prior interpersonal violence presentations. Patient under-reporting and incomplete data may underestimate the true prevalence of interpersonal violence presentations in rural and remote locales.

Use of 3D printed models in medical education: A randomized control trial comparing 3D prints versus cadaveric materials for learning external cardiac anatomy.

Three-dimensional (3D) printing is an emerging technology capable of readily producing accurate anatomical models, however, evidence for the use of 3D prints in medical education remains limited. A study was performed to assess their effectiveness against cadaveric materials for learning external cardiac anatomy. A double blind randomized controlled trial was undertaken on undergraduate medical students without prior formal cardiac anatomy teaching. Following a pre-test examining baseline external cardiac anatomy knowledge, participants were randomly assigned to three groups who underwent self-directed learning sessions using either cadaveric materials, 3D prints, or a combination of cadaveric materials/3D prints (combined materials). Participants were then subjected to a post-test written by a third party. Fifty-two participants completed the trial; 18 using cadaveric materials, 16 using 3D models, and 18 using combined materials. Age and time since completion of high school were equally distributed between groups. Pre-test scores were not significantly different (P = 0.231), however, post-test scores were significantly higher for 3D prints group compared to the cadaveric materials or combined materials groups (mean of 60.83% vs. 44.81% and 44.62%, P = 0.010, adjusted P = 0.012). A significant improvement in test scores was detected for the 3D prints group (P = 0.003) but not for the other two groups. The finding of this pilot study suggests that use of 3D prints do not disadvantage students relative to cadaveric materials; maximally, results suggest that 3D may confer certain benefits to anatomy learning and supports their use and ongoing evaluation as supplements to cadaver-based curriculums. Anat Sci Educ 9: 213-221. © 2015 American Association of Anatomists.

Surgical Treatment of Genital Manifestations of Lymphatic Filariasis: A Systematic Review.

Genital manifestations of lymphatic filariasis (genital LF) are a significant cause of disfigurement and disability in the developing world. Surgery is the standard treatment; however, definitive publications are lacking and best practice remains unclear. An exhaustive search strategy using keyword and subject headings was applied to Medline, EMBASE, Web of Science, CINAHL, and Scopus. Additionally citation lists, Google and Google Scholar, archives of relevant journals and websites were searched systematically. Studies with data on one or more human patient(s) who underwent surgery for genital LF were included. Articles were screened and data extracted by the first author with data verification by the second author. Fifty-seven studies were included: 18 series of ablative surgery, four series of non-ablative surgery and 35 case reports. Poor study quality, heterogeneous case definitions, lack of severity grading and limited follow-up precluded meta-analysis. Two series of simple hydrocelectomies performed in resource-limited settings reported early complication rates of 3.0-3.5 % using eversion and 5-7 % using excision, with recurrence of 7 % and 3-5 %, respectively. Complications were minimal for single-surgeon series and greater (12-18 %) when scrotal reconstruction was performed. There is little useful evidence for lymphatic bypass procedures in genital LF. Under-recognition of atypical manifestation of genital LF leads to potentially unnecessary surgeries. Surgery for genital LF is safe in resource-limited settings; however, more well-designed studies with better follow-up are needed. Research priorities include validation of case definitions and severity grading systems, and solutions to improve post-operative follow-up in resource-limited settings.