World Health Organisation (WHO) defines integrated management of chronic diseases as a practice of using a range of measures to prevent and manage communicable and Non-Communicable Diseases (NCDs) [1]. Integrated management of chronic diseases enables primary health care (PHC) and public health to re-orientate services provided at facilities to focus on improving patient clinical outcomes through using different approaches available within the health systems [2]. Managing patients using the integrated approach is seen as a feasible and sustainable approach to improve clinical outcomes of patients with chronic communicable and NCDs [3]. Human Immunodeficiency Virus (HIV) and NCDs are considered a dual burden in Low and Middle-Income Countries (LMIC). The prevalence of HIV and NCDs remains high in all age groups globally despite the decline of HIV prevalence. Furthermore, NCDs account for 65% death globally and 58% death in LMIC. The prevalence of HIV has declined by 0.6% from 9.8% in 2002 and 9.2% in 2012, however, there is an increase of risk factors including physical inactivity, smoking and alcohol intake associated with NCDs in South Africa [4, 5].

Premature mortality among adults due to HIV and NCDs in South Africa has enormous financial implications in the South African Health Care system. Large amounts of money have been allocated to HIV and NCDs programmes, the development of policies and guidelines, procurement of medication as well as the management of complications emanating from HIV and NCDs [6]. Most countries, both LMIC and high-income countries have reported having policies, guidelines and strategies to address NCDs, however little has been done to complement the efforts of the developed guidelines [1]. Furthermore, strengthening training and mentoring of the health workforce, particularly nurses on the prevention and control of NCDs is of great importance [7].

Primary health care facilities in South Africa are led by nurses, therefore, the level of clinical competence in integrated management of HIV and NCDs at the PHC level determines the type of care provided to patients. The level of the nurse’s clinical competence must include the use of mixed skills and the use of standardised protocols and guidelines to improve patient clinical outcomes. Nurses’ clinical skills should match the type of care rendered in a PHC facility, therefore nurses should be trained in NIMART for patients with communicable diseases and APC for patients with both communicable and non-communicable diseases [8]. Nurses are also expected to provide care in accordance with their training and have to adhere fully to the available treatment guidelines.

There are a number of factors predicting the level of adherence to treatment guidelines among nurses initiating and managing ART and TB treatment identified in South Africa [9]. The factors include poor or lack of knowledge on treatment guidelines. Furthermore, it was indicated that the level of adherence to treatment guidelines varied at different stages of patient care (Screening, diagnosis and treatment) [9]. All these factors prove that nurses’ level of clinical competence is important in improving clinical outcomes of patients with HIV and NCDs.

The purpose of this comprehensive literature review was to identify and evaluate South African policies, guidelines and studies to understand the current status of implementation of integrated management of HIV and NCDs within the PHC in South Africa and document the strengths and opportunities to strengthen the implementation of integrated management of HIV and NCDs amongst nurses in the country. The results of the review may inform policymakers about critical areas of focus when designing and implementing programs to strengthen the integrated management of HIV and NCDs among nurses in PHC to improve patient clinical outcomes.

A Comprehensive Literature Review (CLR) refers to synthesizing quantitative findings stemming from quantitative research studies and synthesizing qualitative findings stemming from qualitative research and is to recognise all aspects or topics in policies, guidelines, articles, and journals. In addition, the literature review provides a starting point for policymakers [10, 11]. For this study, through a comprehensive literature review method, we could identify and evaluate the evidence of both qualitative and quantitative research, including the policies and guidelines. The search was limited to South African Publications, policies, and guidelines to exclude other types of publications such as book chapters, newspaper articles and conference proceedings. The following seven CLR, as outlined by Onwuegbuzie et al. [10], were applied to reduce literature-review errors and to produce a clear, structured, and comprehensive overview of the available literature as shown in Fig. (1). In addition, the seven steps are divided into three phases, namely Phase 1 Exploration phase which includes steps 1 to 5, Phase 2 which include step 6 and Phase 3 which include step 7 as indicated in Fig. (1).

3.2. Integration Phase

Step 6: Analysing and Synthesizing Information

For this literature review, a parallel synthesis was used to analyse quantitative and qualitative studies, policies, and guidelines. the following analysis questions were used to analyse and synthesise information, 1) In what ways have the researchers and policymakers addressed the integrated management of HIV and NCDs among nurses in the PHC setting in South Africa? 2) What are the strengths and opportunities that can be used to strengthen the implementation of integrated management HIV and NCDs among NIMART/APC nurses in South Africa? The studies, policies and guidelines which were included were clustered and organized into strengths and opportunities to sustain the implementation of integrated management of HIV and NCDs in South Africa. A narrative and statistical synthesis was included in this report. In South Africa, the implementation of integrated management of HIV and NCDs is mostly informed by policies and guidelines as illustrated in Table 1. Two themes emerged 1) Strengths of the South African Department of Health to implement integrated HIV and NCDs management and 2) Opportunities available to the South African Department of Health to sustain the
implementation of integrated HIV and NCDs management as indicated in Table 2.

Fig (1). Seven steps to a comprehensive literature review adapted from Onyuebuzie et al 2016.

Table 1. Selected South African documents for analysis

Type of document	Title		Availability of data and material	Year
Article	Educational outreach with an integrated clinical tool for nurse-led non-communicable chronic disease management in primary care in South Africa: a pragmatic cluster randomised controlled trial.		Available in PloS medicine at https://doaj.org/article/72a55ff8779945f38edb945909dd1271 [3]	. 2016
Policy	Integrated chronic disease manual. 2014.		Available at National Department of Health: South Africa at https://www.idealclinic.org.za/ [8]	.2014
Policy	Government information system services		Available at Office of the President at https://www.dfa.gov.za/docs/speeches/2009/jzum1202.html [11]	2018
Policy		Strategic Plan for the Prevention and Control of Non-Communicable Diseases 2013-17.	Available at National Department of Health at www.health.gov.za [14]	2014
Article		Nurses' knowledge of chronic disease management. Naidoo et al	Available from: CINAHL at http://dx.doi.org.nwulib.nwu.ac.za/10.4102/hsag.v19i1.809 [17]	2014
Policy		Integrated clinical service management. Department of Health South Africa	Available from Department of Health South Africa at https://www.idealclinic.org.za/ [19]	2017
Guideline		Competencies – Primary Care Nurse Specialist	South African Nursing Council. Available on www.sanc.co.za [22]	2014
Guideline		Primary Adult care- training manual for facility trainers.	Available at National Department of Health at https://www.idealclinic.org.za/ [23]	2017
Article		Professional nurses' perceptions and experiences with the implementation of an integrated chronic care model at primary healthcare clinics in South Africa	Available from: CINAHL with Full Text http://dx.doi.org.nwulib.nwu.ac.za/10.4102/curationis.v40i1.1708 [28]	2017
Article		Multimorbidity in non-communicable diseases in South African primary healthcare: research.	Available from: SA ePublications Service http://www.scielo.org.za/scielo.php?script=sci_arttext&pid=S0256-95742015000200024&lng=en&tlng=en [29]	2015
Article		Chronic noncommunicable diseases and HIV-AIDS on a collision course: relevance for health care delivery, particularly in low-resource settings-insights from South Africa	Available from: MEDLINE http://nwulib.nwu.ac.za/login?url=http://search.ebscohost.com/login.aspx?direct=true&db=edsgea&AN=edsgcl.274227110&site=eds-live [30]	2011
Policy		District Health Management Information System Policy. 2011	Available on South Africa. National Department of Health. Available at https://www.idealhealthfacility.org.za/ [31]	2011
Article		Improving the quality of nurse clinical documentation for chronic patients at primary care clinics: a multifaceted intervention	Available CINAHL with Full Text http://dx.doi.org.nwulib.nwu.ac.za/10.4102/curationis.v40i1.1708 [32]	2015
Article		Educational Outreach with an Integrated Clinical Tool for Nurse-Led Non-communicable Chronic Disease Management in Primary Care in South Africa: A Pragmatic Cluster Randomised Controlled Trial	Available from: Directory of Open Access Journals https://doaj.org/article/72a55ff8779945f38edb945909dd1271 [33]	2016
Article		Integration of non-communicable chronic diseases (NCDs) and HIV/AIDS and mental health care through the involvement of chronically ill patients using empowerment evaluation: research.	Available from: SA ePublications Service http://hdl.handle.net/10520/EJC182817 [27]	2015
Article		Implementing nurse-initiated and managed antiretroviral treatment (NIMART) in South Africa: a qualitative process evaluation of the STRETCH trial	Available in Google scholar at https://doi.org/10.1186/1748-5908-7-66 [26]	2012

Table 2. Strengths and opportunities for sustaining the implementation of integrated management of HIV and NCDs in South Africa (Authors own work)

Strengths for sustaining the implementation of integrated management of HIV and NCDs	Opportunities available to sustain the implementation of integrated management of HIV and NCDs
• Availability of Policies guiding the implementation of integrated management of HIV and NCDs      • Availability of HIV and NCD guidelines      • Improved NIMART Clinical competence      • Availability of Health information systems for HIV and NCDs	• Leveraging on the existing successful HIV vertical programmes      • Support from external stakeholders or donor funded organisation      • Continuous research on integrated management of HIV and NCDs      • Defining NIMART nurses’ roles related to implementation of integrated management of NCDs      • Involvement of nurses during training

Theme 1: Strengths for implementing integrated management of HIV and NCDs in South Africa

This CLR revealed that South African PHC facilities through its trained workforce can successfully implement the integrated management of HIV and NCDs. Nurse-initiated Management of antiretroviral therapy (NIMART) was implemented to improve access to antiretroviral treatment of patients attending PHC facilities in South Africa, which reduced the mortality of patients with HIV in rural settings. Besides, most South African PHC facilities are a nurse-led facility [17, 22]. The changing of PC 101 into Adult Primary Care (APC) in 2014 gained prominence in the country as nurses working at PHC level began to integrate the management of patients with multi-morbidity, also nurses’ knowledge on providing HIV and NCDs services was found to be improving [3]. The implementation of APC by nurses created awareness on the need and importance of providing holistic care to all patients who attend nurse-led PHC facilities through screening, diagnosis, treatment and follow up care of patients with HIV and NCDs.

Implementation of integrated management of HIV and NCDs is important to better clinical outcomes of patients faced with dual burden of diseases. The CLR was conducted to determine aspects to sustain the implementation of integrated management of HIV and NCDs within the PHC context. Various literature databases including grey literature were searched, resulting in nine studies, five policies and two guidelines after three phases of CLR. Results suggest that there are strengths and opportunities to sustain the implementation of integrated management of HIV and NCDs. Three out of five policy documents showed that there is solid guidance and standing framework for the implementation of integrated management of HIV and NCDs and two policies showed the availability of guiding principles in relation to health information collection and storage. Furthermore, two guidelines revealed how NIMART nurses can utilise the step by step guideline to manage patients with dual conditions (HIV and NCDs), respectively, without challenges. Some (3/9) studies have reported that nurses having shown improved clinical competence to implement integrated management of HIV and NCDs. Almost all studies have shown the opportunities for the country to leverage on which include support from external stakeholders, continuous research and defining NIMART roles in the implementation of integrated management of HIV and NCDs.

According to the NDoH ideal clinic, most policies and guidelines have been included in the implementation of ideal clinic model which include facility reorganisation, clinical supportive management, assisted self–supportive management and strengthening of support structures outside the facility level. Several pilots conducted across South Africa have yielded positive results. As in other African countries (Malawi and Kenya), implementation of integrated management of HIV and NCDs demonstrated a change in nurses’ knowledge and improved clinical patients’ outcomes [31-34]. Majority of the initiatives have shown milestones or progress at an early stage, despite the gaps in drug supply and management support. Monitoring, evaluation and programme design, task shifting and health strengthening systems in the implementation of integrated management of HIV and NCDs, are also perceived as a major drive to successful integrated management of HIV and NCDs [35, 36].

The existence of strategic plans for HIV and NCDs in South Africa is identified as a strength^. There are national guidelines for the implementation of integrated management of HIV and NCDs. This was an ultimate strength to roll out the implementation of integrated management of HIV and NCDs among nurses at a PHC level. The NDoH provided an oversight function through working closely with the external stakeholders such as universities and donor-funded organisations to develop the guidelines for integrated management of HIV and NCDs. The clear outline of nurses’ clinical competence by the South African Nursing Council (SANC), availability of algorithmic approach for screening, diagnosis and treatment of patients with HIV and NCDs in the APC guidelines improves patient clinical outcomes, provided there is ample training for nurses in South Africa [14]. Despite the strengths identified, there are still gaps which may impact negatively to the implementation of integrated management of HIV and NCDs such improper cascade of new programmes to nurse at the PHC level. Similar to other countries, South Africa has implemented different strategies to address the dual burden of HIV and NCDs. However, staff retention and training programmes for nurses are a challenge to the successful implementation of strategies to address the dual burden of HIV and NCDs [36-38].

Integrated management of chronic (HIV and NCDs) diseases is one of the major interventions with which many countries are utilizing to curb the collision of HIV and NCDs and should be implemented and sustained, particularly in countries which are having nurse-led facilities and within PHC through APC and NIMART trained nurses. APC is a new dawn which requires nurses to have a new set of skills to address HIV and NCDs equally. Integrated management of HIV and NCDs at the PHC level improves patient clinical outcomes through the use of approved treatment guidelines. Strengthening the clinical competence of nurses provide PHC nurses with the confidence to continue with the care of patients with multi-morbidity. It is also significant for learning and research to provide evidence-based best practices to implement integrated management of HIV and NCDs. Policies and guidelines for integrated management of HIV and NCDs should be made available to all NIMART nurses at PHC level. Policies and guidelines are there to guide the whole country in the implementation of integrated management of HIV and NCDs, however, the studies conducted in South Africa showed none or little evidence on how Limpopo Province in implementing the integrated management of HIV and NCDs without the support of donor funded organisations.

This CRL shows that South Africa is legible to sustain the implementation of integrated management of HIV and NCDs to improve the patient’s clinical outcomes within the PHC facilities. Many strengths and opportunities have been identified. Guidelines and policies, support and mentorship of nurses are fundamental in maintaining the integrated management of HIV and NCDs. Moreover, leveraging on successful HIV programs and collaborating with academic institutions are essential opportunities which South Africa can count on. It is clear that the NDoH has taken the initiative to improve patient clinical outcomes by using nurses available in the country. Despite the successful implementation, this CLR suggests that there are studies which were conducted in South Africa; however, Limpopo Province was not included all the studies. Future research on full integration of NIMART into APC in South Africa particularly Limpopo Province where there is no support of donor funded organisation is required.

The researchers only reviewed the secondary data from the South African National Department and only English written documents were included in the study.