Freedom of choice, expressions of gratitude: Patient experiences of short-term surgical missions in Guatemala.

Lack of surgical care has been highlighted as a critical global health problem, and short-term medical missions (STMMs) have become a de facto measure to address this shortfall. Participation in STMMs is an increasingly popular activity for foreign medical professionals to undertake in low- and middle-income countries (LMICs) where their clinical skills may be in short supply. While there is emerging literature on the STMM phenomenon, patient experiences of surgical missions are underrepresented. This research addresses this gap through thirty-seven in-depth interviews with patients or caregivers who received care from a short-term surgical mission within the three years prior to the four-week data collection period in July and August 2013. Interviews were conducted in Antigua, Guatemala and nearby communities, and participants came from 9 different departments of the country. These first-hand accounts of health-seeking through a surgical mission provide important insights into the benefits and challenges of STMMs that patients encounter, including waiting time, ancillary costs, and access to care. Patient agency in care-seeking is considered within the pluralistic, privatized health care context in Guatemala in which foreign participants deliver STMM care.

Evaluation and comparison of current fetal ultrasound image segmentation methods for biometric measurements: a grand challenge.

This paper presents the evaluation results of the methods submitted to Challenge US: Biometric Measurements from Fetal Ultrasound Images, a segmentation challenge held at the IEEE International Symposium on Biomedical Imaging 2012. The challenge was set to compare and evaluate current fetal ultrasound image segmentation methods. It consisted of automatically segmenting fetal anatomical structures to measure standard obstetric biometric parameters, from 2D fetal ultrasound images taken on fetuses at different gestational ages (21 weeks, 28 weeks, and 33 weeks) and with varying image quality to reflect data encountered in real clinical environments. Four independent sub-challenges were proposed, according to the objects of interest measured in clinical practice: abdomen, head, femur, and whole fetus. Five teams participated in the head sub-challenge and two teams in the femur sub-challenge, including one team who tackled both. Nobody attempted the abdomen and whole fetus sub-challenges. The challenge goals were two-fold and the participants were asked to submit the segmentation results as well as the measurements derived from the segmented objects. Extensive quantitative (region-based, distance-based, and Bland-Altman measurements) and qualitative evaluation was performed to compare the results from a representative selection of current methods submitted to the challenge. Several experts (three for the head sub-challenge and two for the femur sub-challenge), with different degrees of expertise, manually delineated the objects of interest to define the ground truth used within the evaluation framework. For the head sub-challenge, several groups produced results that could be potentially used in clinical settings, with comparable performance to manual delineations. The femur sub-challenge had inferior performance to the head sub-challenge due to the fact that it is a harder segmentation problem and that the techniques presented relied more on the femur's appearance.

The burden of chronic kidney disease on developing nations: a 21st century challenge in global health.

Chronic diseases present a significant challenge to 21st century global health policy. In developing nations, the growing prevalence of chronic diseases such as chronic kidney disease has severe implications on health and economic output. The rapid rise of common risk factors such as diabetes, hypertension, and obesity, especially among the poor, will result in even greater and more profound burdens that developing nations are not equipped to handle. Attention to chronic diseases, chronic kidney disease in particular, has been lacking, largely due to the global health community's focus on infectious diseases and lack of awareness. There is a critical need for funding in and to developing countries to implement more comprehensive, cost-effective, and preventative interventions against chronic diseases. This paper examines the epidemiology of chronic diseases, the growing prevalence of chronic kidney disease and its implications for global public health, and the associated health and economic burdens. Finally, a summary review of cost-effective interventions and funding needs is provided.