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21 November 2019 | Story Nonsindiso Qwabe | Photo Charl Devenish
Ultrasound read more
Checking out some features of the Samsung ultrasound system are, from the left: SSEM Mthembu Medical's Chase Hutchinson and Jannie Coetzee; Head of Anaesthesiology, Dr Edwin Turton; and Head of Undergraduate Training in Anaesthesiology, Prof Lomby Odendaal.

Medical students in the Faculty of Health Sciences at the UFS will now be able to learn how to perform procedures such as the precise location of a vein for intravenous lines and for diagnostic procedures such as detecting abnormalities in pregnancies, identifying gallstones, and diagnosing trauma-related injuries with ease.  This will be made possible by the placement of a one-of-a-kind ultrasound machine – putting them on par with cutting-edge global medical technology.

A first ever in the medical curriculum of undergraduate students at the UFS

The state-of-the-art, compact HS70A Samsung ultrasound system to the value of R1,4 million was unveiled in the Faculty of Health Sciences’ Clinical Simulation and Skills Unit on 19 November. A first ever in the medical curriculum of undergraduate students at the UFS, it is set to revolutionise the delivery of health-care education in the faculty, said Prof Lomby Odendaal, Teaching and Learning Coordinator for undergraduate anaesthesiology training in the Department of Anaesthesiology.

The ultrasound system was donated by SSEM Mthembu Medical and Samsung Korea.
Prof Odendaal said for the first time in the history of the undergraduate MB ChB curriculum, the ultrasound will be available to medical students from their third year. Students have never had the opportunity to be trained in using ultrasound this early in their careers.

Improved clinical training experience of students

Ultrasound is a diagnostic medical tool that uses sound waves to produce images of internal structures of the body. Prof Odendaal said ultrasound is important to determine pathology and diseases in the body and to provide point-of-care ultrasound. Having the ultrasound in the unit will transform the clinical training experience of students, training them to provide better treatment and medical care, even in constrained environments, to improve patient care.

“There is almost no structure in the body that cannot be examined using ultrasound. It makes the delivery of healthcare more effective. If you make a better diagnosis, the treatment and care will be much better. Ultrasound is so important lately that if you don’t do it, you will be left behind. That’s why we decided to bring this to the students. We can’t miss out on teaching our students about ultrasound, because we want them to be familiar with it by the time they finish their medical degree, so that, even if they go to smaller hospitals, they will be able to spread diagnostic care to the periphery,” Prof Odendaal said.

Streamlined workflow for patient care

“The cutting-edge technology and rich image quality of the ultrasound will deliver top-notch diagnoses to suit the diverse departments within the faculty,” said Chase Hutchinson, National Product Manager at SSEM Mthembu Medical. It comes with various pre-set models to cater for different needs and applications, allowing streamlined workflow for higher efficiency and patient care.

According to Prof Mathys Labuschagne, the Head of the Clinical Simulation and Skills Unit, ultrasound training will improve the quality of doctors graduating in the faculty. “We are really excited about this. You can diagnose many conditions using ultrasound and deliver point-of-care ultrasound; this will become a natural part of students’ training and clinical practice in future.”

News Archive

Research eradicates bacteria from avocado facility
2017-01-17

 Description: Listeria monocytogenes Tags: Listeria monocytogenes

Listeria monocytogenes as seen under an electron
microscope. The photo was taken with a transmission
electron microscope at the microscopy unit of the UFS.
Bacteriophages (lollipop-like structures) can be seen
next to the bacterial cells.
Photo: Supplied

“The aim of my project was to identify and characterise the contamination problem in an avocado-processing facility and then to find a solution,” said Dr Amy Strydom, postdoctoral fellow in the Department of Microbial Biochemical and Food Biotechnology at the University of the Free State (UFS).

Her PhD, “Control of Listeria monocytogenes in an Avocado-processing Facility”, aimed to identify and characterise the contamination problem in a facility where avocados were processed into guacamole. Dr Strydom completed her MSc in food science in 2009 at Stellenbosch University and this was the catalyst for her starting her PhD in microbiology in 2012 at the UFS. The research was conducted over a period of four years and she graduated in 2016. The research project was funded by the National Research Foundation.

The opportunity to work closely with the food industry further motivated Dr Strydom to conduct her research. The research has made a significant contribution to a food producer (avocado facility) that will sell products that are not contaminated with any pathogens. The public will then buy food that is safe for human consumption.


What is Listeria monocytogenes?

Listeria monocytogenes is a food-borne pathogenic bacterium. When a food product is contaminated with L. monocytogenes, it will not be altered in ways that are obvious to the consumer, such as taste and smell. When ingested, however, it can cause a wide range of illnesses in people with impaired immune systems. “Risk groups include newborn babies, the elderly, and people suffering from diseases that weaken their immune systems,” Dr Strydom said. The processing adjustments based on her findings resulted in decreased numbers of Listeria in the facility.

The bacteria can also survive and grow at refrigeration temperatures, making them dangerous food pathogens, organisms which can cause illnesses [in humans]. Dr Strydom worked closely with the facility and developed an in-house monitoring system by means of which the facility could test their products and the processing environment. She also evaluated bacteriophages as a biological control agent in the processing facility. Bacteriophages are viruses that can only infect specific strains of bacteria. Despite bacteriophage products specifically intended for the use of controlling L. monocytogenes being commercially available in the food industry, Dr Strydom found that only 26% of the L. monocytogenes population in the facility was destroyed by the ListexP100TM product. “I concluded that the genetic diversity of the bacteria in the facility was too high and that the bacteriophages could not be used as a control measure. However, there is much we do not understand about bacteriophages, and with a few adjustments, we might be able to use them in the food industry.”

Microbiological and molecular characterisation of L. monocytogenes

The bacteria were isolated and purified using basic microbiological culturing. Characterisation was done based on specific genes present in the bacterial genome. “I amplified these genes with polymerase chain reaction (PCR), using various primers targeting these specific genes,” Dr Strydom said. Some amplification results were analysed with a subsequent restriction digestion where the genes were cut in specific areas with enzymes to create fragments. The lengths of these fragments can be used to differentiate between strains. “I also compared the whole genomes of some of the bacterial strains.” The bacteriophages were then isolated from waste water samples at the facility using the isolated bacterial strains. “However, I was not able to isolate a bacteriophage that could infect the bacteria in the facility.

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