15 research outputs found
The ethicolegal framework relevant to human faecal microbiota transplants in South Africa: Part 2. Human stool as tissue?
Faecal microbiota transplantation (FMT) has been shown to be an effective treatment for recurrent Clostridioides difficile infection. The purpose of this article, the second of a series of three articles, is to explore the legal framework governing human FMT in South Africa (SA). FMT involves different modes of administration that require different regulatory considerations. The focus of this article is to explore the legal classification of human stool as tissue in terms of the National Health Act 61 of 2003, as well as the regulation of human stool banks as tissue banks. The article concludes with specific recommendations aimed at improving the current regulatory vacuum relating to the regulation of FMT in SA
The ethicolegal framework relevant to human faecal microbiota transplants in South Africa: Part 1. A legal vacuum
The legal regulation of faecal microbiota transplantation (FMT) in South Africa (SA) is currently unclear. The purpose of this article, the first of three in a series, is to explore the nature, role and clinical application of FMT in SA in order to determine, from a legal perspective, the appropriate regulatory pathways governing FMT as a procedure that may combine approaches for the treatment of drugs, human tissue for transplantation, or clinical treatment as part of the practice of medicine. FMT has been shown to be a novel, safe and effective treatment for recurrent Clostridioides difficile infection (CDI). Stool banks are instrumental in enabling access to FMT for patients and clinicians and help to catalyse research in the microbiome. However, the regulatory landscape in SA remains unclear. Microbial therapies such as FMT are necessary, especially in a time of rising microbiome-associated inflammatory diseases and increasing resistance to traditional antibiotics. FMT is now considered as part of the standard of care for recurrent CDI overseas, but is currently only being used for research purposes in a minority of clinical cases of CDI in SA. This article, which lays the foundation for consideration of this question in three parts, suggests that the relevant regulatory system would depend on the categorisation of human stool as tissue, the exact composition of the FMT, how it is administered to patients, and the relevant levels of manipulation of the stool for FMT-derived products
Surveillance of catheter-related infections : the supplementary role of the microbiology laboratory
BACKGROUND : The burden of catheter-related infections (CRIs) in developing countries is severe. In South Africa, a
standardised surveillance definition does not exist and the collection of catheter days is challenging. The aim of the
study was to provide baseline data on the prevalence of CRIs and to describe the epidemiology of CRI events
within a tertiary academic hospital.
METHODS : Surveillance was laboratory-based and conducted for a six month period. A microbiologically confirmed
CRBSI (MC-CRBSI) event was defined as the isolation of the same microorganism from the catheter and concomitant
blood cultures (BCs), within 48 h of catheter removal, which were not related to an infection at another site.
RESULTS : A total of 508 catheters, removed from 332 patients, were processed by the laboratory, of which only 50%
(253/508 removed from 143/332 patients) of the catheters were accompanied by BCs within 48 h. Sixty-five episodes of
MC-CRBSI in 57 patients were detected, involving 71 catheters and 195 microbial isolates. The institutional prevalence
rate was 3.7 episodes per 1 000 admissions and 5.8 episodes per 10 000 in-patient days. Catheter day data was collected
in only six wards of the hospital. The pooled laboratory incidence was 10.1 MC-CRBSI episodes per 1 000 catheter days,
whereas the hospital-based central line-associated bloodstream infection (CLABSI) rate was pooled at 5.7 episodes
per 1 000 catheter days. The majority of patients had an underlying gastro-intestinal condition (33%; 19/56) with a
non-tunnelled, triple-lumen central venous catheter, placed in the subclavian vein (38%; 27/71). The most
predominant pathogen was methicillin-resistant Staphylococcus epidermidis (28%; 55/195), followed by
extensively-drug resistant Acinetobacter baumannii (18%; 35/195).
CONCLUSIONS : Catheter-related infection prevention and control efforts require urgent attention, not only to keep
patients safe from preventable harm, but to prevent the spread of multidrug resistant microorganisms.RESCOM,Faculty of Health Science, UP, National Health Laboratory Service (NHLS) and
the National Research Foundation (NRF).http://www.biomedcentral.com/bmcinfectdis/hb201
Fecal Microbial Transplantation for the Treatment of Persistent Multidrug-Resistant Klebsiella pneumoniae Infection in a Critically Ill Patient
Dysbiosis of the microbiome is a common finding in critically ill patients, who receive broad-spectrum antibiotics and various forms of organ support. Multidrug-resistant (MDR) organisms are a growing threat in all areas of medicine, but most markedly in the critically ill, where there is both loss of host defences and widespread use of broad spectrum antibiotics. We present a case of a critically ill patient with persistent MDR Klebsiella pneumoniae infection, successfully treated with fecal microbiota transplantation (FMT), using stool of a rigorously-screened, healthy donor. FMT for Clostridium difficile colitis has been well described in the literature and is an established therapy for recurrent infections with Clostridium difficile. The use of FMT for other multidrug-resistant organisms is less frequently described, particularly in the context of critically ill patients. In our case, we have culture-documented clearance of the MDR Klebsiella pneumoniae form a patient of FMT
Lip and perioral trauma
The management of perioral injuries is a complex topic that must take into consideration the unique anatomy, histology, and function of the lips to best restore form and function of the mouth after injury. Basic reconstructive principles include three-layered closure for full-thickness lip lacerations. Additionally, special care is needed to ensure an aesthetic repair of the cosmetically complex and important vermillion border, philtrum, and Cupid's bow. Infraorbital and mental nerve blocks provide lip anesthesia for laceration repair without distorting crucial aesthetic landmarks. Prophylactic antibiotics are usually indicated in perioral injuries due to wound contamination with saliva. Perioral burn management is controversial; however, most lip burns can first be managed conservatively. Splinting, plasties, and other reconstructive options are available after secondary healing of perioral burns. Hypertrophic scars are common in the perioral area after trauma. The mainstays of treatment for hypertrophic scars on the lips are silicone elastomer sheeting and intralesional steroid injections. For large perioral defects, a myriad of reconstructive options are available, ranging from primary closure, cross-lip flaps, and local tissue transfer, to free tissue transfers such as radial forearm free flaps, innervated gracilis free flaps, anterolateral thigh free flaps, and osteocutaneous free flaps
Management of open tibia fracture following fresh water contamination
The treatment of contaminated open fractures of the tibia remains problematic. Research has shown that the combination of early wound debridement, fracture stabilisation, soft tissue cover and empiric antibiotic use can reduce the incidence of infective complications. Empiric choice of antimicrobial(s) should target the most likely pathogens at the site of infection. Staphylococci and Streptococci are the most common aetiological agents for wound sepsis in the orthopaedic setting, and are typically covered by the first generation cephalosporins. Wound infections secondary to exposure to water sources poses a unique challenge in that a different spectrum
of microorganisms are expected and varies according to the type of water source. A recent article published by Ribeiro et al focusing on the management of bums patients, noted that water exposure due to irrigation of the wounds as part of first aid management resulted in Gram-negative colonisation and infection. Thus, different
empiric antimicrobials were suggested according to the water sources used for irrigation. Local epidemiology and resistance patterns need to be taken into account when deciding on the initial empiric antibiotic regimen
Genetic relatedness of Staphylococcus aureus isolates obtained from cystic fibrosis patients at a tertiary academic hospital in Pretoria, South Africa
Cystic fibrosis (CF) is an inherited recessive disease that affects mucocillary clearance in the lung,
allowing it to be colonised with bacteria such as Staphylococcus aureus. To survive in the CF lung S.
aureus adapts both phenotypically and genotypically, through various mechanisms. In this study,
multiple specimens were collected from the participants and were processed routinely and were
additionally cultured in chromogenic media. Multiplex PCR assays were employed to detect methicillin
resistance and selected virulence and quaternary ammonium compound (qac) genes. Genetic
relatedness of the S. aureus was determined using agr, SCCmec and spa typing as well as pulsed field
gel electrophoresis (PFGE) and multi-locus sequence typing (MLST). Thirty-three S. aureus isolates
were isolated, of which 51% (17/33) were methicillin resistant S. aureus (MRSA). The virulence and
qac genes were more prevalent in MRSA than the methicillin sensitive S. aureus (MSSA) isolates. The
PFGE analysis showed nine distinct pulsotypes while MLST showed eight sequence types. All the STs
detected in this study, except for ST508 have been previously isolated from CF patients according to
the literature. This study showed a genetically diverse S. aureus population with a high prevalence of
virulence genes among the MRSA isolates from the CF clinic.The NHLS Research Trust, the
NRF and RESCOM.http://www.nature.com/srepam2019Medical Microbiolog
Laser Treatment of Skin Texture and Fine Line Etching
Modern cosmetic medicine requires accurate recognition of all types of rhytids and their molecular causes such that treatments may be tailored for improving skin appearance for each unique patient. This article examines the causes and treatment of fine rhytids. Laser rejuvenation therapies that affect the epidermis, dermis or both and induce neocollagenesis and dermal remodeling can be effective against the stigmata of mature skin