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06 September 2023 | Story André Damons | Photo Supplied
radiation dose distribution
The patient is still under anaesthesia, the placement of the brachytherapy applicators is completed, and they are connected to the Iridium source for the radiation to be given.

Medical personnel at the Universitas Academic Hospital and the University of the Free State (UFS) in Bloemfontein became the first in Southern Africa to use Interstitial brachytherapy as a method for treating cervical cancer. 

A multidisciplinary team, consisting of an anaesthetist, clinical oncologists, application specialists, medical physicists, radiation therapy radiographers and professional nurses, completed the first interstitial cervical cancer brachytherapy in Southern Africa at Universitas Academic Complex in June this year.

Prof Alicia Sherriff, Head of the UFS Department of Oncology and a clinical oncologist, explained: “Brachytherapy is a method of internal radiation therapy, where a source of radiation is placed inside or near the cancer. This type of radiation travels only a short distance and makes it possible to deliver curative doses to the cancer while staying within the tolerance of the surrounding bladder, rectum, and small bowel.” 

She further emphasised that intracavitary brachytherapy has been an essential component of the curative management of cervical cancer since 1938.

According to her, feasibility studies were published for the use of applicators that combine intracavitary and interstitial brachytherapy in 2006. In 2014 prospective clinical trials started reflecting on the clinical value to improve local control for the locally advanced cervical cancers with combining intracavitary and interstitial brachytherapy to get higher doses of radiation where the cancer has grown outside of the cervix. Interstitial brachytherapy where the applicators are placed into the tissue with cancer are also used in prostate and breast cancer. 

Second-most common cancer in South African women

As per the Catalan Institute of Oncology (ICO) and the International Agency for Research on Cancer (IARC) information Centre on Human Papilloma Virus and cancer publication of March 2023, the current new diagnoses of cervical cancer annually in South Africa are 10,702 with 5,870 patients passing away annually due to cervical cancer. It is the second-most common cancer in women in South Africa and the most common among women between 15 and 44. Due to late/delayed presentation and diagnoses most cervical cancer patients seen have more advanced stages where the cancer has infiltrated outside of the cervix into the surrounding tissue.

“At the Universitas Academic Complex we have been approaching cervical brachytherapy with CT (Computer Tomography)-based image guidance for more than a decade already and the past five years we have been doing Adaptive CT-based image guided brachytherapy. 

“This means that with each brachytherapy treatment the cancer and all the surrounding normal organs are delineated based on a new CT image to ensure that we consider how the cancer has shrunk from one brachytherapy to the next and to see how we can limit the dose to the surrounding organs but at the same time achieve the highest possible dose of radiation with each treatment,” says Prof Sherriff. 

Planning to expand the use to other cancers

The intracavitary brachytherapy applicators which are used most frequently are placed within the cervix and uterus and deliver high doses there but cannot address the infiltration into the surrounding tissue adequately, she continued. “That is where these additional needles that are placed via the Venezia applicator into the surrounding tissue give the ability to also reach those areas with high-dose radiation while sparing the organs.”

Prof Sherriff explained that the interstitial brachytherapy does add additional time, expertise and logistical planning to the management and would not be utilised for all cervical cancer patients, but for those patients with locally advanced disease whose general health would support a more aggressive approach. The other academic training institutions are aiming to add interstitial brachytherapy to their platforms as well as at the UFS which is also planning to expand the use to other cancers. 

Save more lives

The MEC for Health in the Free State province, Mathabo Leeto, has congratulated medical professionals on this groundbreaking medical intervention. 

She said this breakthrough is in line with goals set by the United Nations in not only the provision of quality health services, but also and importantly, saving lives.

“This milestone is responsive to our targets for improvement of women’s health and reducing mortality. It is responsive also to Goal 3 of the United Nations’ Sustainable Development Goals which seeks to reduce global maternal mortality ratio, ensure universal access to sexual and reproductive health-care services, including for family planning, information and education, and the integration of reproductive health into national strategies and programmes,” she said.

“Hopefully this breakthrough will help us save many more lives. I wish to congratulate everyone who contributed to this innovative way of cancer treatment and assure you that your province and the people are indebted to you,” concluded Leeto.

 


The medical staff who were involved in the first interstitial cervical cancer brachytherapy in Southern Africa were, from left: Dr Marnus Booyens (Anaesthetist); Dr Karin Vorster (Head Clinical unit and Clinical Oncologist); Dr Willie Shaw (Head of Medical Physics for the division of Radiation Oncology); Khalil Ben Fredj (Application Specialist ELEKTA for the TIMEA region and medical physicist); Prof Alicia Sherriff (HOD Oncology and clinical oncologist); Dr Dedri O’Reilly(medical physicist); Chantel Stroebel (Radiation therapy radiographer at brachytherapy); Dr Lourens Strauss (Medical physicist); Karl Sachse (Medical physicist); Sr Angelique Engelbrecht (professional nurse); Marga Claassen (Clinical and Commercial Account Specialist, SA for Elekta and Medical physicist).

News Archive

Heart diseases a time bomb in Africa, says UFS expert
2010-05-17

 Prof. Francis Smit

There are a lot of cardiac problems in Africa. Sub-Saharan Africa is home to the largest population of rheumatic heart disease patients in the world and therefore hosts the largest rheumatic heart valve population in the world. They are more than one million, compared to 33 000 in the whole of the industrialised world, says Prof. Francis Smit, Head of the Department of Cardiothoracic Surgery at the Faculty of Health Sciences at the University of the Free State (UFS).

He delivered an inaugural lecture on the topic Cardiothoracic Surgery: Complex simplicity, or simple complexity?

“We are also sitting on a time bomb of ischemic heart disease with the WHO (World Health Organisation) estimating that CAD (coronary artery disease) will become the number-one killer in our region by 2020. HIV/Aids is expected to go down to number 7.”

Very little is done about it. There is neither a clear nor coordinated programme to address this expected epidemic and CAD is regarded as an expensive disease, confined to Caucasians in the industrialised world. “We are ignoring alarming statistics about incidences of adult obesity, diabetes and endemic hypertension in our black population and a rising incidence of coronary artery interventions and incidents in our indigenous population,” Prof. Smit says.

Outside South Africa – with 44 units – very few units (about seven) perform low volumes of basic cardiac surgery. The South African units at all academic institutions are under severe threat and about 70% of cardiac procedures are performed in the private sector.

He says the main challenge in Africa has become sustainability, which needs to be addressed through education. Cardiothoracic surgery must become part of everyday surgery in Africa through alternative education programmes. That will make this specialty relevant at all levels of healthcare and it must be involved in resource allocation to medicine in general and cardiothoracic surgery specifically.

The African surgeon should make the maximum impact at the lowest possible cost to as many people in a society as possible. “Our training in fields like intensive care and insight into pulmonology, gastroenterology and cardiology give us the possibility of expanding our roles in African medicine. We must also remember that we are trained physicians as well.

“Should people die or suffer tremendously while we can train a group of surgical specialists or retraining general surgeons to expand our impact on cardiothoracic disease in Africa using available technology maybe more creatively? We have made great progress in establishing an African School for Cardiothoracic Surgery.”

Prof. Smit also highlighted the role of the annual Hannes Meyer National Registrar Symposium that culminated in having an eight-strong international panel sponsored by the ICC of EACTS to present a scientific course as well as advanced surgical techniques in conjunction with the Hannes Meyer Symposium in 2010.

Prof. Smit says South Africa is fast becoming the driving force in cardiothoracic surgery in Africa. South Africa is the only country that has the knowledge, technology and skills base to act as the springboard for the development of cardiothoracic surgery in Africa.

South Africa, however, is experiencing its own problems. Mortality has doubled in the years from 1997 to 2005 and half the population in the Free State dies between 40 to 44 years of age.

“If we do not need health professionals to determine the quality and quantity of service delivery to the population and do not want to involve them in this process, we can get rid of them, but then the political leaders making that decision must accept responsibility for the clinical outcomes and life expectancies of their fellow citizens.

“We surely cannot expect to impose the same medical legal principles on professionals working in unsafe hospitals and who have complained and made authorities aware of these conditions than upon those working in functional institutions. Either fixes the institutions or indemnifies medical personnel working in these conditions and defends the decision publicly.

“Why do I have to choose the three out of four patients that cannot have a lifesaving operation and will have to die on their own while the system pretends to deliver treatment to all?”

Prof. Smit says developing a service package with guidelines in the public domain will go a long way towards addressing this issue. It is also about time that we have to admit that things are simply not the same. Standards are deteriorating and training outcomes are or will be affected.

The people who make decisions that affect healthcare service delivery and outcomes, the quality of training platforms and research, in a word, the future of South African medicine, firstly need rules and boundaries. He also suggested that maybe the government should develop health policy in the public domain and then outsource healthcare delivery to people who can actually deliver including thousands of experts employed but ignored by the State at present.

“It is time that we all have to accept our responsibilities at all levels… and act decisively on matters that will determine the quality and quantity of medical care for this and future generations in South Africa and Africa. Time is running out,” Prof. Smit says.
 

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