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Research Article - (2017) Volume 14, Issue 5

Proceedings and Quality Indicators of the Primary Health Care Doctor Supporting Medical Teleconsultation System in the State of Amazonas (Brazil)

Nando Campanella1, Harold Martin Wright2, Pierpaolo Morosini3, Guido Sampaolo4 and Gianluca Serafini5

1PhD, Telemedicine Unit of the University of the State of Amazonas, Manaus, Brazil

2International Department of Amazonas State University, Manaus, Brazil

3Coordination of the Department of Medicine, Health District of Ascoli Piceno, Italy

4Coordination of the Post-Graduation in General Medicine for General Practitioners, Health District n. 2, Marche Region, Italy

5University Unified Hospitals of Ancona, Italy

Corresponding Author:

Nando Campanella
Unified Hospitals of Ancona - Via Conca 71 - 60126 ANCONA Italy
Tel: +5592994858506; +393383535744
E-mail: [email protected]

Submitted date: July 09, 2017; Accepted date: August 16, 2017; Published date: August 23, 2017

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Economic studies and randomized-control studies are reportedly of poor practicability for evaluating the performance of medical teleconsultation systems, particularly in areas with large rural indigenous populations. Thus, this is an observational case study, focusing on a retrospective audit of the performance of a teleconsultation system by establishing and estimating measurable quality indicators (QI). The inhabitants of the rainforest of the state of Amazonas, partly indigenous, have poor access to the health system facilities, despite government guarantees, due to both cultural and geographical considerations. Nevertheless, the Telemedicine and Telehealth Centre (TTC) provide the Primary Health Care Doctors (PCD) of 22 municipalities with teleconsultation. Whenever the complexity of the health problem of a patient exceeds the PCD’s capacities, the PCD can apply for teleconsultation via satellite antenna Internet connection and the TTC expectedly returns e-mail based (asynchronous) counseling within 72 h through its network of teleconsultants. A board, composed of 5 international TTC-external experts, audited the proceedings, analyzed the series of cases submitted from January to September 2016, established QI, and proposed desirable standards. The results of some QI are that: a) the anamnesis, physical examination, and attached documentation from the PCD are still of poor quality and require improvements through PCD training; b) the TTC provides teleconsultation within 32 h in ordinary cases and twentyone hours in urgent cases; c) the database of teleconsultants (mostly internationals) available covers thirty-nine specialties; d) additional synchronous communication was used in 14%, mostly in traumatology; e) the referral advising ratio is at 16%; f) In the referral process, the flow of clinical data between health providers is unsatisfactory; g) cold cases are at 4% and h) definitive response in counseling is at 44%. Observational case series studies, based on external audit, are supportive in outlining performance and pointing out actions aimed at improvement.


Telemedicine; Indicator; Primary health care; Medical teleconsultation; e-Health; Indigenous populations

Key points about what is known

1) The setting-up of health services in the State of Amazonas (Brazil) is a hard task because of geographical and cultural issues including indigenous populations.

2) The classification of medical teleconsultation systems is difficult as well for different patterns reported in literature.

3) Economic studies and randomized control studies are of poor practicability for evaluating the performance of medical teleconsultation systems.

Key points about adds-on

1) The medical teleconsultation system in the State of Amazonas is an attempt to cope with the geographical isolation, lack of expertise and inequality due to cultural diversities.

2) An auditing board of five external experts was set-up to support the evaluation of the performance of the medical teleconsultation of the State of Amazonas.

3) The review of a series of cases drove the board to propose twenty quality indicators focusing on applicants’ and teleconsultants’ performances and on the flow of proceedings.

4) The quality indicators focusing on applicants’ performance suggest the need of improvement through formal courses.


Nearly all of the many experiences in teleconsultation, reported over recent years, focus on either specific disciplines, such as cardiology, dermatology or technologies, such as real-time ultrasound scan or early detection and follow-up of diseases (e.g. epilepsy) [1-3]. Thus, any such experiences deal with selected health subjects and involve a few specialized researchers. Although Information and Communication Technologies really provide an added value in terms of accuracy, speed and expert qualification, such experiences seem to be non-essential in providing health, especially in the urban areas where patients find alternatives to solving their health problems. Actually, such experiences are often designed as pilot projects and therefore they are not integrated into the health system as a service. Thus, their impact on the overall health of the population remains poor or unproven [4,5]. The only model of health system integrated medical teleconsultation is the support to the Primary Health Care doctors (PCD), living in remote areas, with no expertise available at short distances, in instances where they encounter cases of medium complexity beyond their skills [6]. Such models of teleconsultation systems demonstrably reduce the patient’s medical error vulnerability [7]. The medical teleconsultation system of Amazonas fits this profile.

Located in northern Brazil, the state of Amazonas covers 1,559,149 km2. The total population of the state is estimated at 3,938,336 inhabitants. Around 2 million people live in the municipal area of the capital, Manaus, with the remaining 1.8 million inhabitants spread over the other 61 municipalities lying within the Amazon Rainforest. Thus, the mean surface of the municipalities is very wide (25,373 km2) and the density of the population very low (2.2/ km2) [8].

In the navigable portions of the Amazon River Basin, the transporting of people and goods usually occurs by boat; however, the low density of the population means many communities remain nevertheless isolated.

Of the mobile telephone companies operating in the state of Amazonas, only one has satisfactory repeater coverage. However, the wireless repeater cell phone signal is limited to the main settlement areas of the municipalities, with Internet data transmission being often not supported and the loss of signal common during thunderstorms. Transferring data is erratic and restricted to the use of satellite antenna.

In addition, in the state of Amazonas 168,680 inhabitants are self-declared as indigenous, representing the greatest concentration (20%) of the entire indigenous population in Brazil [9]. They reportedly represent 62 ethnic groups speaking 45 languages [10].

Many reports suggest that such ethnic minorities get access to the health services to a much lesser extent [11,12]. The quality of such services is low, but with the expansion of Information and Communication Technologies there is the promise of improvements [13,14]. As such, the geographic and cultural ethnical context of the state of Amazonas is a challenge for any social services to work and often demands personalized solutions.

Nevertheless, the unified and universal Brazilian national health system (Sistema Único de Saúde – SUS) is able to provide Primary Healthcare (PHC) through family healthcare teams, led by a general practitioner (Primary HealthCare Doctor - PCD), in health posts. Moreover, most of the main towns within the municipalities have their own district hospital where Secondary HealthCare is provided. Medium complexity diseases and lifethreatening cases are referred to such hospitals. However, when dealing with urgent cases or elective surgery of the highest complexity of care, the patient is evacuated to Manaus, via expensive air transport [15]. In the case of indigenous patients and families, there is frequent resistance to such referrals, with patients even opting instead to employ traditional medicine, creating tension with medical authorities [16].

Support for coping with isolation and lack of health expertise is provided through the Telemedicine and Telehealth Center (TTC). The TTC provides asynchronous (e-mail based) and synchronous (teleconferencing) medical teleconsultation service via Internet satellite connection through a portal of the Ministry of Health [17]. PCDs registered through the portal, practicing in the countryside of Amazonas, can request consultation on their occurring cases by logging into the portal and posting the case asynchronously. Afterwards, TTC relays the cases to the relevant consultants, who return their counseling to the applicants.

All together, the geographical and infrastructural setting makes this teleconsultation system a universally unique challenge. Moreover, although in the literature many of the experiences in telemedicine places stress on workloads, papers focusing on auditing and quality indicators of telemedicine systems are few [18].

Thus, the purpose of this observational study is to establish the basis for teleconsultation system auditing by instituting and estimating quality indicators (QI), while profiling the actual demand in terms of applications from January to September 2016.

Materials and Methods

Clinical case posting and acceptance

In the municipalities, a technician in a telemedicine center manages the hardware and satellite Internet connections. The health professionals (PCDs and, occasionally, health assistants and nurses) subscribe to an account in the portal. All of them work as PHC professionals in health posts, which serve as the patient entry point into the health system, providing care for whatever type of pathology the individual may have, with the exception of emergency conditions. The process of medical teleconsultation (Figure 1).


Figure 1: The process of medical teleconsultation.

Whenever the PCD attends a patient (step 1), he usually solves low complexity problems on his own with no need of external support. He may also come across cases of medium complexity, mono- or multidisciplinary, exceeding the common knowledge of PHC professionals. In such cases, he can log into the portal and request asynchronous medical teleconsultation (step 2). According to TTC issued guidelines, he inputs in free text form: a) the full identification data of the patient (name, surname, gender, date of birth, municipality of residence, weight and height); b) the clinical history related to the actual reason for the consultation; c) the relevant semiotic aspects of the physical examination; d) the hypothesized diagnosis or the differential diagnosis diagram; e) on-going and relevant previous medications and f) the specific demands or questions he wishes to be addressed by the consultants. The free text application may have attachments such as pictures of important semiotic features (e.g. lesions of the skin, of goiter, etc.) to show, X-ray tests, electrocardiograms, growth cards, and other significant and pertinent clinical documents in the most common electronic formats (JPEG, PDF, Word, Mp4, etc.).

An internal medicine clinician (Medical Coordinator - MC) goes through the information provided by the application asynchronously as well, within a maximum delay of 8 hours’ time. Afterwards, the MC classifies the application according to the Second Edition of the International Classification of Primary Care [19]. The MC may reject the applications under four conditions: 1) Requests unfeasible for ethical or procedural reasons; 2) Low complexity of care that ought to be solved at PHC level in the municipality; 3) No compatibility with the capacity of medical teleconsultation to address (surgery, complex procedures of cancer staging, psychological and psychiatric complicated evaluations, etc.) or 4) Application not drawn up according to the guidelines issued. The MC justifies the reasons for rejection and gives guidance to the PCD to improve the quality of his future applications.

The process of teleconsultation

If the application is accepted with only some minor information missing, the MC returns the contact with the PCD synchronously (teleconferencing through various voice-over Internet protocols, telephone calls, according to the PCD’s available communication tools) (step 3). In this manner, any unclear issue in the application is ascertained. The MC is required to be sympathetic to the imperfections and incompleteness of the applications given that, basically, such applications deal with clinical cases of medium complexity that are beyond the skills of the PCD to solve.

In the next step, the MC, as an internal medicine clinician, takes the responsibility for developing the strategy for solving the case. For this purpose, he may contact (asynchronously or, more often, synchronously) one or more experts whose locations are within three continents (Americas, Europe, Africa) (step 4). Experts of various medical disciplines are included in a database of over 90 experts. Previously, all of them, of proven skills and experience, had declared their commitment to advising the MC and have obviously gained the MC’s trust.

By means of such a teleconsultation, the MC builds the strategy of clinical problem solving by merging the required knowledge, establishing priorities, and drawing up a plan of action, in accordance with the principles of the internal medicine holistic approach, the common worldwide shared official medical deontology, and the feasibility of the medical procedures of the Brazilian health system (step 5) [20]. From this point, three possibilities may occur: 1) the patient’s problem can be solved by the PCD through simple advice (ex: prescribing and adjusting treatments for a resistant chronic heart failure or for a specialized disease such as eczema); 2) the PCD can solve the problem through a procedure he has never done before and for which he has to be quickly trained (ex: carrying out an ultrasound scan to diagnose gallstones in the gallbladder) or 3) the patient unpredictably has to undergo procedures or treatments that no health professional in the municipality can perform (ex: surgery of the highest complexity).

Whichever the occurrence, the MC chooses the smoothest and safest way to proceed. He may either reply to the PCD posted application on his own or, more often, refer the case to one of the teleconsultants (TC) registered in the platform (step 6) and, afterwards, this selected TC replies to the applicant through the portal (step 7). The quality of such counseling is much related to links, evidences, multimedia tutorials, and recorded PowerPoint presentations, which can be attached to the report by the MC and the TC [21].

The case is concluded and filed through a monitoring process, including the evaluation of the applicant’s satisfaction regarding the counseling received (step 8).

The classification of clinical cases according to the problem solving strategy

The established problem solving strategy drives on toward further classification of the case. While going over the application, the MC has to make decision regarding: a) urgency (except emergencies, which cannot possibly be solved through teleconsultation) and b) the complexity of competencies required and therefore the number and profile of the consultants to call in.

The definition of urgency is based on the usual reaction time of the asynchronous medical teleconsultation system available. Whenever the MC determines that the asynchronous teleconsultation may be not an effective and quick tool, he puts in for a synchronous teleconsultation as soon as possible. During that meeting, all three (PCD, MC, TC) make all decisions and take action accordingly.

With regards to the complexity of the teleconsultation, it is divided into two groups: a) mono-disciplinary and b) multidisciplinary. The requests for mono-disciplinary case solvable teleconsultations are usually included in the following domains: a) dermatology; b) odontostomatology; c) neuro-psychiatrics (including infant and child development) and d) obstetricsgynaecology. The multi-disciplinary cases may be of the most varied pattern of complexity and, therefore, we try to merge these into the minimum number of categories and thus reduce the fragmentation into specialties. To simplify matters, we group them into: a) internal medicine (also including pediatric and newborn cases) or b) traumatology (including surgery in broad perspective).

Mono-disciplinary cases are usually directed by the MC to the relevant TC and therefore involve a single operation of virtual referral. Afterwards, the consultant advises the PCD of his own accord.

Multi-disciplinary cases are managed under the MC’s direct coordination. The MC collects opinions from several consultants and finally advises the PCD.

QI of medical teleconsultation

Despite the efforts of the American Telemedicine Association, the literature still provides poor and generic guidance as to the quality indicators of multi-disciplinary telemedicine services, whose reports of activities remain without any valuable audit [22,23]. Thus, an audit board was set-up. It was composed of 5 TTC-external international specialists profiled as follows: a) one internal medicine specialist, professor in clinical medicine and clinical methodology; b) one expert in public health system management from an agency of the United Nations; c) one PHC medical doctor (General Practitioner), experienced in telemedicine network management; d) one dermatologist with a background of teleconsultation and e) one manager of the regional clinical laboratories network.

The tasks of such a board were: a) to check the repeatability of proceedings of medical teleconsultation; b) to establish the QI and the process monitoring parameters of the teleconsultation system; c) to review the series of the applications according to the selected QI and parameters of evaluation and estimate the percentage of occurrences of the QI and d) to the extent possible, to establish desirable standards of the QI.

The board verified the whole series of cases occurring over the period January 2016 to September 2016, when the composition of the TTC team, the set-up of Internet access points in the municipalities, and the network of applying PCD remained steady. In the whole process of the evaluation, the members of the board got no access to the identity and race of the patients.

20 QI were selected as relevant and applicable in any teleconsultation model addressing the support to PCD.

Of these, 17 were measurable quantitatively, albeit with some restrictions. The remaining 3 could be estimated only semiquantitatively in one of the three categories: 1) satisfactory; 2) improving or 3) unsatisfactory.

The QI were numbered progressively according to the sequential steps of the teleconsultation procedure. The QI 1-6 were dependent upon the applicant’s skills and commitment. However, owing to the poor applicability of the method to any kind of discipline, some evaluations were carried out only in dermatological cases, in that these made up a homogeneous, as well as the most numerous, case series.

The QI 7-15 were dependent only upon the TTC’s capacities. The remaining QI 16-20 were related to the intrinsic methodology of the Amazonas teleconsultation system.

Quality Indicators of the ratio of cost effectiveness of the medical teleconsultation system of Amazonas, though of interest, could not be calculated within the scope of this study, as the TTC budget includes expenses for various other activities beyond medical teleconsultation, namely tele-education, virtual seminars, formal courses for students from the Faculties of Medicine , Nursing, and Odontology. Considering that the TTC staff is normally engaged in these activities, the budget items could not be effectively broken down to individual activities.

Given the lack of references and guidance from literature, the desirable standards of the QI were flexibly and arbitrarily established by the board, according to other telemedicine system management experiences.



72 health professionals from 22 municipalities applied for teleconsultation over 9 months, as shown in Figure 2. Five of these municipalities (São Gabriel da Cachoeira, São Paulo de Olivença, Tabatinga, Santa Izabel do Rio Negro, and Barcelos) are among the 10 municipalities in Brazil with the maximum number of rural indigenous people, while Manaus is in the Top 10 of municipalities with the greatest proportion of urban indigenous population [24] (Figure 2).


Figure 2: Different municipalities applied for teleconsultation.

The total amount of applications was 346. The municipality of Canutama presented the minimum (only 1 application), while Tabatinga stood at the maximum (149 applications).

The male/female ratio of the patients was 0.8.

The mean age of the patients was 31 + 27. For the female sex the mean age was 32 + 26. For the male sex the mean age was 31 + 27.

281 (81%) applications were attended. The remaining 65 (19%) were rejected.

The attended applications were grouped as follows: 115 internal medicine (41%); 104 dermatology (37%); 31 neuro-psychiatric (11%); 13 obstetrics-gynecology (5%), 11 traumatology (4%) and 7 odontostomatology (2%).

Of the total applications, 61 (18%) were held and forwarded as urgent by the MC. The disciplines of the urgent cases were: 40 internal medicine (66%), 10 traumatology (16%), 7 neuropsychiatrics (12%) and 4 obstetrics-gynecology (6%).

The QI

The 20 QI selected and their estimation over the case series is summarized in the table. In the last column desirable standards are reported and commented (Table 1). QI 16 is noteworthy. It considers the cases which could not be solved or even supported by teleconsultation as a method (cold cases). Of the 12 cases (8 classified as internal medicine and 4 as neuro-psychiatric): a) 6 were of a multi-disciplinary complexity that cannot be integrated and coordinated under the internal medicine; b) 3 involved the execution of surgical procedures and were therefore off-limits for teleconsultation and c) 3 presented no chances of collecting even PHC basic information and physical examination signs, for the impossibility to trace back indigenous patients for their nomadism.

Process monitoring and quality Indicators Results  Desirable standards and comments
  Applicant’s performance    
1 Complete identification of the patient (full name, age, gender, weight and height) 275/346 (79%) Desirable: >95%
2 Good quality of the anamnesis (applicable only to dermatological consultations) 58/104 (56%) Desirable: >85% Continuous training needed.
3 Good quality of the physical examination report (applicable only to dermatological consultations) 48/104 (46%) Desirable: >85%
Continuous training needed.
4 Diagnostic hypothesis and/or open demands/questions laid down by the applicant (applicable only to dermatological consultations) 90/104 (87%) Desirable: >85%
5 Good quality of clinical reports attached (applicable only for dermatological consultations) (American Telemedicine Association, 2007b) 55/104 (53%) Desirable: > 85%. Continuous training and dissemination of multimedia tutorials needed.
6 E-mail reminders by the MC to the applicant owing to delayed access (over 72 h) to consult the TC’s counselling report 36 (13%) Desirable: <10%
However It may be due to force majeure causes, such as poor connectivity in some municipalities.
  TTC’s performance    
7 Network of experts available 95 experts (11 Brazilian nationals, 84 from western Europe), making up 39 specialties. Desirable: Minimum two experts per specialty and language interoperability granted.
8 Need for teleconferencing (synchronous) additional support (see step 3) 39/281 (14%)
Most frequently: traumatology 8/11 (73%) and neuro-psychiatrics 9/31 (29%).
In urgent cases: 15/61 (25%)
Desirable: 10-25%
If <10% PHC has more case solving capacity than expected. If >25% applications are of too poor quality.
9 Classification of the application by the MC and strategy of patient problem solving Satisfactory Only rarely could cases not be framed within the established classification.
10 Fair to patient’s need and technically consistent reaction time of the system to respond 32 + 30 h in ordinary cases [min: 1, max: 159]
21 + 22 h in urgent cases [min: 2, max: 130].
26/346 (7%) over 72 h of delay.
In urgent cases it happened in 2 cases.
72 h delay is the time-limit established by the Ministry of Health of Brazil to attend the application. Exceeding this limit should be allowed for multidisciplinary chronic disease cases, needing high level of coordination. However over 72 h’ time for attendance is desirable <5%.
11 Referral advising ratio 45/281 (16%)
6/11 traumatology
7/31 neuro-psychiatrics
19/115 internal medicine
10/104 dermatology
Desirable: 10-25%.
Below 10% keeps patients without third-level expertise. Over 25% telemedicine does not prevent from unnecessary referrals.
12 High qualification of referral Unsatisfactory No referral occurred with proper coordination by the third level expertise, definite schedule and use of an electronic health record of the citizen.
13 TCs’ adherence to the recommendations in replying [only for dermatological cases] 98% Desirable: >85%
Specialist teleconsultations can be easily standardized.
14 A minimum of one published supportive evidence or reference or multimedia tutorial being attached by the TC 129/281 (46%) Desirable: >75%
It establishes the capacity building component of teleconsultation.
15 Ethical surveillance (number of recalls to the applicants about ethics and deontology) 7/346 (2%) Desirable: 3-7%
Ethics in telemedicine system is still poorly addressed by the law and by the deontology manuals
  Method-dependent indicators    
16 Proportion of cold cases through teleconsultation. 12/281 (4%) Desirable: <2% Recommendations about teleconsultation capacities should be disseminated by the TTC [7].
17 Not previously rejected cases proposed again for follow-up 55/281 (20%) Desirable 10-30%
This is the mean proportion of returning patients in secondary health care level medical wards, excluding oncology.
18 Applicant’s open dissatisfaction of the TC’s reply against his expectations 13/281 (4%) Desirable: <5%
19 Definite answer given (the TC’s reply to the applicant’s demand/question or the diagnosis were given with no alternatives against differential diagnosis diagram). 125/281 (44%)
5/7 dental (71%)
7/11 traumatology (64%)
50/104 dermatology (48%)
49/115 internal medicine (43%); 10/31 neuro-psychiatrics (32%)
4/13 obstetrics-gynaecology (31%)
First consultation: 101/224 (45%)
Second consultation: 23/55 (42%)
Desirable: >50%
It demonstrates the capacity of case solving in relation to the demands and the telemedicine system’s set-up.
20 Service and facility database keeping Unsatisfactory With poor knowledge of the availability and quality of services, health facilities, and clinical tests, counseling may show a not wholly realistic face of this context.

Table 1: Quality indicators of the teleconsultation system of Amazonas.


The multi-disciplinary teleconsultation systems usually lay within an ecological niche carved in a vacuum of the chain of the health services. Over the course, they are continuously reshaped, according to the sudden alterations in the environment (new investments in health, turnover of health managers and human resources for health in the field, new connectivity and transport opportunities etc) and therefore to the changing demand. This is why every teleconsultation system has its own profile and is not necessarily duplicable elsewhere [32]. Recommendations and guidelines issued about evaluation often turn out to be generic and poorly applicable [33].

In this respect, Tuerk and coll. published a detailed review to stress the difficulty in carrying out randomized-control studies on the evaluation of telemedicine systems, which are held by some authors as golden standard for impact [34]. Tuerk considers double-blind studies as nearly impossible and raises ethical concerns [35].

Krupinski and Bernard support the idea that observational case series studies, as ours is, are still the most supportive [36].

However, comparing telemedicine system performance through workloads with no hint or comment about the health system background makes really poor sense, albeit sometimes helpful in teleconsultation system management [37].

Economic analyses studies are also puzzling. Bergmo arguments whether they can be trusted and Mistry states that there is no conclusive evidence that telemedicine interventions are cost-effective compared to conventional health care [38,39]. But in Amazonas conventional health care is really not competitive, even not sustainable [40].

However, given how difficult it may be, establishing the QI is a mandatory task to help the teleconsultation system managers in monitoring the performance, understanding the changeable environment and demands, making quick adaptive decisions and maintaining the benefit-cost ratio.

Establishing “normal” ranges of QI presented is another difficult task. However, among optimum, attainable, and desirable, we believe that, nowadays, desirable is the only practical choice. Currently, the optimum is too easy and perhaps even unrealistic, while the attainable still remains unpredictable.

Focusing on the QI of the applicant’s performance, the poor quality of anamnesis, physical examination, and attached pictures demands a strategy of permanent refresher training of the PCD regarding good practices. A TTC must mandatorily operate with both teleconsultation and tele-education for its improved performance.

Among the QI of TTC’s performance we believe that the large size of available expert database (n. 7) and the reaction time (n. 10) are the most noteworthy. The expert database must be as big and as international as possible to escape selfreferencing of small schools of medicine and therefore to increase accountability and auditability. Moreover, the trust of the PCDs is strictly reaction-time dependent.

Among the method-dependent QI, item n. 20 represents the most disturbing shortcoming. A system of capturing and monitoring information on resources, services, and facilities in the field is an indispensable tool.

Additionally, checking the repeatability of proceedings by periodically auditing through external experts is to be developed.


Although not yet definitive, the proposed set of QI of performance in Amazonas is a practical attempt to move forward in the evaluation of teleconsultation systems. Unfortunately, we could include no cost-effectiveness indicator.

Further observational case series studies are needed just for performance monitoring purposes. An external and independent audit board should always support such studies.

Furthermore, concrete data on indigenous access to teleconsultation should be obtained to properly measure the full reach of this essential healthcare tool in the Amazon.

Ethical Approval

This study was carried out conforming the Declaration of Helsinki and under the permission of the telemedicine platform managing authorities of the Ministry of Health of Brazil. In particular, as it is also informed in the paper, the involved investigators could not have access to the identity and race of the patients throughout the revision of the case series. The methodology of the research preserved anonymity and privacy of the patients at full extent.


The authors acknowledge the managing work performed by Prof. Cleinaldo Almeida Costa, Chancellor of Amazonas State University and former Director of the Telemedicine and Telehealth Center.

Source of Funding

No grant was given for this research by any sponsor. Authors and external experts worked on pure voluntarism and gratuity, just aiming to give a scientific contribution to this controversial issue.

Conflict of Interest

The authors declare that none of them have any conflict of interest in this research.


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