Virtual delivery of improvisational movement and social engagement interventions in the IMOVE trial during the COVID-19 pandemic.

Background: IMOVE evaluated the contributions of movement and social engagement to quality of life, brain network connectivity, and motor and social-emotional functioning in people with early-stage Alzheimer's disease participating with a caregiver. In response to COVID-19 restrictions, a pilot study was conducted to assess integrity of key elements of the intervention and feasibility of virtual intervention delivery. Methods: Participants in the parent study were randomized to one of 4 study conditions (Movement Group [MG], Movement Alone [MA], Social Group [SG], or Usual Care [UC; control]). To test virtual adaptations of each condition, groups of three participant-caregiver dyads (6 individuals) who had completed the parent trial participated in virtual adaptation classes. We adopted an engineering-inspired, rapid refinement model to optimize virtual interventions on the dimensions of social connectedness, fun, and physical exertion. After completing one iteration, participants gave feedback and adjustments were made to the intervention. This process was repeated until no further adjustments were needed. Results: The MA arm easily transitioned to virtual format. The virtual MG intervention required the most iterations, with participants reporting needs for additional technology support, higher level of physical exertion, and stronger social connection. The virtual SG intervention reported good social connection, but needed additional technology instruction and measures to promote equal participation. Conclusions: Our pilot study results underscore the feasibility of delivering remote social and/or dance interventions for older adults and provide a useful road map for other research teams interested in increasing their reach by adapting in-person group behavioral interventions for remote delivery.

The Efficacy of Ivermectin and Metronidazole vs. Standard Treatment Protocols on Outcomes of COVID-19 in Hospitalized Patients: A Triple-Blinded Randomized Controlled Trial

Background: Coronavirus disease 2019 (COVID-19) has turned into a global public health crisis since the end of 2019. It may thus take years to develop new drugs, so evaluating the existing ones can play a key role in suppressing or even mitigating the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic. Objective(s): This study reflected on the effects of ivermectin (IVM) and metronidazole (MTR) vs. standard treatment protocols on symptoms, humoral immune responses, and outcomes of COVID-19 in hospitalized patients. Method(s): This triple-blinded randomized controlled trial (RCT) of IVM and MTR vs. standard treatment protocols was conducted from February 2021 to May 2021. A total number of 107 participants were accordingly selected from all patients infected with SARS-CoV-2 and positive results for SARS-CoV-2 based on the reverse transcription-polymerase chain reaction (RT-PCR) or the computerized tomography (CT) scan results at three teaching hospitals affiliated to Shiraz University of Medical Sciences, Shiraz, Iran. In this RCT, several indicators, including some vital signs, biomedical parameter, length of hospital stay (LOS), and death, were considered the outcomes. Result(s): A total number of 107 patients were recruited in this study. The results revealed that 10 patients (10.4%) expired during hospitalization. The mortality rate in IVM group (4.5%) was lower compared with MTZ (15.8%) and standard treatment (11.8%) (P = 169). After five days, the mean differences of lymphocyte and neutrophil counts differed significantly between groups (P = 0.020 and P = 0.029, respectively). But, other outcomes did not differ (P > 0.05). Conclusion(s): Based on this RCT, neither IVM nor MTZ could significantly affect COVID-19 patients' recovery patterns compared with the standard treatment protocols. Hence, more studies are needed to test diverse combinations of immunological response trigger-ing and anti-inflammatory drugs. Moreover, including and relying on IVM in clinical guidelines for COVID-19 should be cautioned and based on more evidence. Copyright © 2022 Author(s).

Chile's public healthcare sector hypertension control rates before and during the pandemic and HEARTS implementation.

Hypertension (arterial blood pressure ≥ 140/90 mmHg) is a risk factor for cardiovascular diseases, with the greatest burden of attributable deaths in Chile, having a national prevalence of 27.6%. In 2018, the implementation of HEARTS begun in primary health care centers of the Public Health System, with the aim of achieving increase in control rates, by raising the proportion of hypertensive individuals who meet blood pressure goals (< 140/90 mmHg for individuals 15-79 years old and of 150/90 mmHg for individuals 80 years and older), and thus contributing to reduce cardiovascular morbidity and mortality associated with this condition. This is a descriptive study that follows average treatment and control rates from the Public Health System between 2017-2021 obtained from health centers statistics reports during HEARTS implementation. Treatment and control rates remained at 57% and 39% respectively between 2017-2019. Between 2020 and 2021, in the context of the SARS-CoV-2 pandemic, treatment and control rates decreased very significantly, reaching 46% and 26%, respectively, in December 2021, even though the number of centers reporting the implementation of HEARTS increased from 227 to 387 in this same period. Prior to the pandemic, during the last quarter of 2019, a decrease in cardiovascular health controls was already observed as a result of social protests. In light of the results, the technical pillars of the HEARTS Initiative have an important role in helping to recover the population control rates reached in 2019 and increasing the speed to achieve better hypertension control rates.

La hipertensión arterial (presión arterial ≥ 140/90 mmHg) es un factor de riesgo para las enfermedades cardiovasculares, que tienen la mayor carga de muertes atribuibles en Chile. En este país, la hipertensión tiene una prevalencia nacional del 27,6%. En el 2018 se inició la aplicación del paquete técnico HEARTS en los centros de atención primaria de salud del sistema público de salud de Chile, con el objetivo de lograr un aumento de las tasas de control, al elevar la proporción de personas hipertensas que cumplen con las metas de presión arterial (< 140/90 mmHg para personas de 15 a 79 años y de 150/90 mmHg para personas de 80 años o más) y así contribuir a reducir la morbilidad y la mortalidad cardiovascular asociadas a esta enfermedad. En este estudio descriptivo se realiza un seguimiento de las tasas promedio de tratamiento y control del sistema público de salud entre el 2017 y el 2021 obtenidas de los informes estadísticos de los centros de salud durante la aplicación de la iniciativa HEARTS. Las tasas de tratamiento y control se mantuvieron en 57% y 39%, respectivamente, en el período entre el 2017 y el 2019. Entre el 2020 y el 2021, en el contexto de la pandemia de SARS-CoV-2, las tasas de tratamiento y control disminuyeron de manera muy significativa, y se ubicaron en 46% y 26%, respectivamente, en diciembre del 2021, a pesar de que el número de centros que notificaron la aplicación de HEARTS aumentó de 227 a 387 en el mismo período. Antes de la pandemia, en el último trimestre del 2019, ya se había observado una disminución en los controles de salud cardiovascular debido a las protestas sociales. En vista de estos resultados, los pilares técnicos de la iniciativa HEARTS desempeñan un papel importante para ayudar a recuperar las tasas de control que se habían alcanzado en el 2019 y acelerar la consecución de mejores tasas de control de la hipertensión.

A hipertensão (pressão arterial ≥ 140/90 mmHg) é um fator de risco para doenças cardiovasculares, com a maior carga de mortes atribuíveis no Chile, onde a prevalência nacional é de 27,6%. Em 2018, teve início a implementação da iniciativa HEARTS em centros de atenção primária à saúde do sistema de saúde pública, com o objetivo de elevar as taxas de controle, pelo aumento da proporção de indivíduos hipertensos que alcançam as metas de pressão arterial (< 140/90 mmHg para pessoas de 15-79 anos e de 150/90 mmHg para pessoas a partir de 80 anos), e, assim, contribuir para a redução da morbimortalidade cardiovascular associada a essa condição. Este é um estudo descritivo que acompanha as taxas médias de tratamento e controle no sistema de saúde pública entre 2017 e 2021, obtidas de relatórios estatísticos dos centros de saúde durante a implementação da iniciativa HEARTS. Entre 2017 e 2019, as taxas de tratamento e de controle foram, respectivamente, de 57% e 39%. Entre 2020 e 2021, no contexto da pandemia causada pelo SARS-CoV-2, houve uma diminuição muito significativa das taxas de tratamento e de controle, que chegaram, respectivamente, a 46% e 26% em dezembro de 2021, embora o número de centros que informaram ter implementado o pacote HEARTS tenha aumentado de 227 para 387 no mesmo período. Antes da pandemia, durante o último trimestre de 2019, já se observava uma diminuição dos controles da saúde cardiovascular em consequência de uma onda de protestos sociais. Os resultados mostram que os pilares técnicos da iniciativa HEARTS são importantes para ajudar a recuperar as taxas de controle na população alcançadas em 2019 e aumentar a velocidade para atingir melhores taxas de controle da hipertensão.

Protocols of Standard of Care for Adult Patients with Primary Antibody Deficiencies Will Improve Timing of Diagnosis, Survival, and Quality of Life.

The majority of primary immunodeficiencies (PIDs) are antibody deficiencies (PADs), and not all of them are rare diseases; As an example, Caucasian individuals suffer from selective IgA deficiency at a frequency of 1:500. In addition to infections, symptomatic patients with PAD are more likely to develop neoplastic, autoimmune, and allergic diseases. In the event that PAD is neglected or delayed for more than ten years, complications develop, eventually resulting in death. No studies have been conducted to devise and report detailed ready-to-use protocols for managing PAD to date. This study aimed to propose protocols and guidelines for the adult PAD patients' standard care. Preparing the protocol, we considered the frequency and type of laboratory tests, imaging, endoscopic examinations, specialist consultations, and standardized recommendations for further care in the place of residence.  As a result of the proposed monitoring scheme, patients can be provided with complete care in terms of their underlying conditions and comorbidities, as well as early detection of complications. This protocol will serve as a guide for physicians dealing with these patients and enable comparisons of patient groups across a variety of treatment centers, even far away from each other. A national consultant in the field of clinical immunology verified the protocol mainly developed by Polish experts from reference immunology centres for adults.

Adapting obstetric and neonatal services during the COVID-19 pandemic: a scoping review.

BACKGROUND: The provision of care to pregnant persons and neonates must continue through pandemics. To maintain quality of care, while minimizing physical contact during the Severe Acute Respiratory Syndrome-related Coronavirus-2 (SARS-CoV2) pandemic, hospitals and international organizations issued recommendations on maternity and neonatal care delivery and restructuring of clinical and academic services. Early in the pandemic, recommendations relied on expert opinion, and offered a one-size-fits-all set of guidelines. Our aim was to examine these recommendations and provide the rationale and context to guide clinicians, administrators, educators, and researchers, on how to adapt maternity and neonatal services during the pandemic, regardless of jurisdiction. METHOD: Our initial database search used Medical subject headings and free-text search terms related to coronavirus infections, pregnancy and neonatology, and summarized relevant recommendations from international society guidelines. Subsequent targeted searches to December 30, 2020, included relevant publications in general medical and obstetric journals, and updated society recommendations. RESULTS: We identified 846 titles and abstracts, of which 105 English-language publications fulfilled eligibility criteria and were included in our study. A multidisciplinary team representing clinicians from various disciplines, academics, administrators and training program directors critically appraised the literature to collate recommendations by multiple jurisdictions, including a quaternary care Canadian hospital, to provide context and rationale for viable options. INTERPRETATION: There are different schools of thought regarding effective practices in obstetric and neonatal services. Our critical review presents the rationale to effectively modify services, based on the phase of the pandemic, the prevalence of infection in the population, and resource availability.

[Intrahospital Protocol for the Management of COVID-19 Disease in Adults]. / Protocolo Intra-Hospitalar para Abordagem da Doença COVID-19 no Adulto.

The COVID-19 pandemic is currently responsible for over 526 million infections and over 6.3 million deaths. As a new disease, the number of papers on the subject is extensive, motivating considerable heterogeneity in its approach. Despite some medicines having sound evidence of benefit, new interventions and strategies continue to be proposed, and some still lack scientific evidence, which hinders a uniform and consensual approach. This article aims to standardize healthcare to adult patients with moderate-to-critical COVID-19, from the emergency department to hospitalization, either in a general ward or in level 2 or level 3 intensive care units, based on the best and most updated scientific evidence available. This protocol presents recommendations for the stratification of adult patients with COVID-19 disease, adequate workup at admission and during hospitalization, inpatient treatment criteria, general treatment measures, pharmacological treatment, management of complications such as organizing pneumonia and bacterial superinfection, thromboprophylaxis, special considerations on pregnancy and breastfeeding and possible future therapies.

A pandemia de COVID-19 é, atualmente, responsável por mais de 526 milhões de infeções e mais de 6,3 milhões de mortes. Como nova doença, é extenso o número de publicações sobre o tema, motivando uma considerável heterogeneidade na sua abordagem. Apesar de existirem terapêuticas com benefício comprovado, continuam a ser propostas novas intervenções e estratégias, algumas das quais carecendo ainda de suporte científico, dificultando assim uma abordagem uniforme e consensual. Este documento tem como objetivo uniformizar, baseando-se na melhor e mais atualizada evidência científica disponível, a prestação de cuidados aos doentes adultos com COVID-19 moderada a crítica, desde o serviço de urgência até à hospitalização, quer em enfermarias gerais, quer em enfermarias de cuidados intensivos de nível 2 e 3. Este protocolo apresenta recomendações para a estratificação da doença COVID-19, critérios de hospitalização, meios complementares de diagnóstico adequados à admissão e durante a hospitalização, medidas terapêuticas gerais e terapêutica farmacológica dirigida, gestão de complicações como pneumonia organizativa e sobreinfeção bacteriana, tromboprofilaxia, considerações especiais na gravidez e amamentação, e possíveis opções terapêuticas futuras.

Detecting Early Signs of Insufficiency in COVID-19 Patients from CBC Tests Through a Supervised Learning Approach

One important task in the COVID-19 clinical protocol involves the constant monitoring of patients to detect possible signs of insufficiency, which may eventually rapidly progress to hepatic, renal or respiratory failures. Hence, a prompt and correct clinical decision not only is critical for patients prognosis, but also can help when making collective decisions regarding hospital resource management. In this work, we present a network-based high-level classification technique to help healthcare professionals on this activity, by detecting early signs of insufficiency based on Complete Blood Count (CBC) test results. We start by building a training dataset, comprising both CBC and specific tests from a total of 2,982 COVID-19 patients, provided by a Brazilian hospital, to identify which CBC results are more effective to be used as biomarkers for detecting early signs of insufficiency. Basically, the trained classifier measures the compliance of the test instance to the pattern formation of the network constructed from the training data. To facilitate the application of the technique on larger datasets, a network reduction option is also introduced and tested. Numerical results show encouraging performance of our approach when compared to traditional techniques, both on benchmark datasets and on the built COVID-19 dataset, thus indicating that the proposed technique has potential to help medical workers in the severity assessment of patients. Especially those who work in regions with scarce material resources. © 2021, Springer Nature Switzerland AG.

Randomized trial to evaluate the safety and efficacy of outpatient treatments in individuals with Covid-19 with risk factors. COVERAGE France Trial: a structured summary

Context. The Covid-19 pandemic is of unprecedented magnitude and has had major social and health consequences. Primary care professionals, mainly general practitioners, ensure the care of most patients with Covid-19. An early-stage treatment administered to patients with risk factors for developing a severe disease could reduce hospitalization and death rates. No treatment is currently validated in this indication. Objectives. To evaluate the safety and efficacy of experimental candidate agents delivered in outpatient settings to reduce the risk of hospitalization or death in at-risk patients with early-stage proven Covid-19 and no indication for hospital admission. Methods. Multicentric, open-label, multi-arm, multi-stage (MAMS) randomized controlled trial with a pilot tolerability and safety phase, and a clinical efficacy phase. Efficacy will be determined by the proportion of participants who have an indication for hospital admission, administration of acute oxygen therapy (because of Covid-19) or who decease between D0 and D14 in the experimental treatment group compared to the control group. Expected results. This trial will assess the tolerance and efficacy of diverse treatments administered at an early stage of Covid-19, in patients with risk factors of developing a severe disease. It will also provide information that can contribute to increase primary care actors' ability to conduct clinical trials at the national level.

CT Examinations for COVID-19: A Systematic Review of Protocols, Radiation Dose, and Numbers Needed to Diagnose and Predict.

Purpose: Although chest CT has been discussed as a first-line test for coronavirus disease 2019 (COVID-19), little research has explored the implications of CT exposure in the population. To review chest CT protocols and radiation doses in COVID-19 publications and explore the number needed to diagnose (NND) and the number needed to predict (NNP) if CT is used as a first-line test. Materials and Methods: We searched nine highly cited radiology journals to identify studies discussing the CT-based diagnosis of COVID-19 pneumonia. Study-level information on the CT protocol and radiation dose was collected, and the doses were compared with each national diagnostic reference level (DRL). The NND and NNP, which depends on the test positive rate (TPR), were calculated, given a CT sensitivity of 94% (95% confidence interval [CI]: 91%-96%) and specificity of 37% (95% CI: 26%-50%), and applied to the early outbreak in Wuhan, New York, and Italy. Results: From 86 studies, the CT protocol and radiation dose were reported in 81 (94.2%) and 17 studies (19.8%), respectively. Low-dose chest CT was used more than twice as often as standard-dose chest CT (39.5% vs.18.6%), while the remaining studies (44.2%) did not provide relevant information. The radiation doses were lower than the national DRLs in 15 of the 17 studies (88.2%) that reported doses. The NND was 3.2 scans (95% CI: 2.2-6.0). The NNPs at TPRs of 50%, 25%, 10%, and 5% were 2.2, 3.6, 8.0, 15.5 scans, respectively. In Wuhan, 35418 (TPR, 58%; 95% CI: 27710-56755) to 44840 (TPR, 38%; 95% CI: 35161-68164) individuals were estimated to have undergone CT examinations to diagnose 17365 patients. During the early surge in New York and Italy, daily NNDs changed up to 5.4 and 10.9 times, respectively, within 10 weeks. Conclusion: Low-dose CT protocols were described in less than half of COVID-19 publications, and radiation doses were frequently lacking. The number of populations involved in a first-line diagnostic CT test could vary dynamically according to daily TPR; therefore, caution is required in future planning.

COVID-19 treatment algorithm focused on early identification of risk factors. / Algoritmo de tratamiento COVID-19 centrado en identificación temprana de factores de riesgo.

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the cause of the respiratory disease called COVID-19 and of the state of global health emergency. Currently, there is no specific treatment or sufficient scientific information to generate consensus or unique international guidelines on how to treat COVID-19. It is suggested that adapting the actions of evaluation, monitoring and treatment of patients with COVID-19, focused on the knowledge of the pathophysiology of the disease and on the known risk factors, could improve the presentation of adverse outcomes in patients. In this work, a flow chart of care and treatment for the patient with COVID-19 during hospitalization is presented, focused on the identification of the stage of the disease, constant reassessment with emphasis on the early identification of poor prognosis factors and treatment proposals according to current guidelines.

El coronavirus 2 asociado al síndrome respiratorio agudo severo (SARS-CoV-2) es el causante de la enfermedad respiratoria denominada COVID-19 y del estado de emergencia sanitaria mundial. En la actualidad no existe tratamiento específico ni información científica suficiente para generar un consenso o guías internacionales únicos sobre cómo tratar la COVID-19. Se sugiere que adaptar las acciones de evaluación, monitorización y tratamiento de los pacientes con COVID-19, centradas en el conocimiento de la fisiopatología de la enfermedad y en los factores de riesgo conocidos, podría mejorar la presentación de los desenlaces adversos en los pacientes. En este trabajo se presenta un flujograma de atención y tratamiento para el paciente con COVID-19 durante la hospitalización, centrado en la identificación de la etapa de la enfermedad, la revaloración constante con énfasis en la identificación temprana de los factores de mal pronóstico y propuestas del tratamiento de acuerdo con las guías actuales.

Nursing interventions for patients with COVID-19: A medical record review and nursing interventions classification study.

PURPOSE: To describe the nursing interventions provided to patients with COVID-19 using the Nursing Interventions Classification. METHOD: This is a retrospective study involving the review of 1,344 patient records of adults admitted to a specialty hospital for COVID-19 in Tabriz, Iran. The nursing intervention was used to classify documented nursing care and interventions provided to COVID-19-positive patients from February 20 to August 20, 2020. Data were analyzed descriptively using SPSS16. FINDINGS: The 10 most frequently documented nursing interventions across in-patient (ward) and intensive care unit (ICU) contexts included Admission Care (7310), Environmental Management (6486), Health Education (5510), Infection Protection (6550), Medication Administration (2300), Positioning (0840), Respiratory Monitoring (3350), Vital Signs Monitoring (6680), Nausea Management (1450), and Diarrhea Management (0460). No records of distraction, relaxation techniques, or massage for anxiety reduction were documented. CONCLUSION: This study used a common language to describe nursing interventions for patients with COVID-19 admitted to a tertiary hospital. IMPLICATIONS FOR NURSING PRACTICE: The most commonly identified nursing interventions for COVID-19 identified in this study provide evidence-based insight into nurses' scope of practice in the COVID-19 in-patient context.

What is the rate of COVID-19 infection in a population seeking oral health care?

BACKGROUND: Although rates of COVID-19 have remained low among US dentists, the authors aimed to determine the risk of there being COVID-19 in patients seeking oral health care. METHODS: The authors performed a retrospective chart review of all emergency department consultations from June 1, 2020, through December 31, 2020. They used Pearson correlation coefficients to compare rates with citywide prevalence (P < .05). RESULTS: The authors located 203 encounters with 149 tests and 10 cases of COVID-19. Cases were strongly correlated with the citywide positivity rate (r = 0.9147; P = .0039). All patients who tested positive were asymptomatic and afebrile, and one-half (50%) visited a dentist within a week of consultation. CONCLUSIONS: The rate of COVID-19 in a population seeking oral health care reflects the community positivity rate. Asymptomatic or presymptomatic patients pose risks to providers, staff members, and other patients. PRACTICAL IMPLICATIONS: Dentists should remain vigilant during the ongoing COVID-19 pandemic, even with vaccination rollout. The Centers for Disease Control and Prevention maintains an accessible website with easy access to each state's positivity rate and caseload.

[Recommendations for the management of the patient with chronic renal disease with SARS-CoV-2]. / Recomendaciones para el manejo del paciente con enfermedad renal crónica ante el SARS-CoV-2.

The SARS-CoV-2 pandemic, which affects the entire population in general, poses a special risk for patients with chronic kidney disease because of their immunosuppression status, advanced age and the coexistence of significant comorbidity.Renal patients undergoing hemodialysis run the risk not only of suffering but also of transmitting and spreading COVID-19 due to multiple factors, both procedural and logistical, associated with the process. These include the long duration of the technique, collective transfer to and from the centres, and the waiting time before performing the technique, aspects that make strict isolation difficult and therefore increase not only the risk of contagion between patients but also between specialist health professionals, which makes it more difficult to replace professionals.Prevention, protection, detection, isolation and distribution measures are essential in the management of the epidemic and must be taken from the initial stage. For this to be possible, it is necessary to draw up protocols to guide the actions of both the patient and the professionals in the different stages of chronic renal disease.

[Nursing care for hospitalized patients in COVID-19 units]. / Cuidados enfermeros en el paciente adulto ingresado en unidades de hospitalización por COVID-19.

Since the SARS-CoV-2 was announced on March 11 in 2020, most of people, professional healthcare, scientists, technical personnel and managers included, have been developing protocols, procedures, guides, technical reports to orient an adequate attention in this health emergency due to the COVID-19. The shortage bibliography about nursing care in this pandemic is the reason to develop a useful clinical protocol to attend to the higher number of adult patients who were admitted at Hospitalization Units adapted to patient with COVID-19. For that reason, the aim of this document is to provide recommendations to the clinical practice and that way, helping to protocolize the care in adult patients admitted in COVID-19 Hospitalization Units, based in standards of the literature or the most current experience in front of this new pandemic.

Implementation and strategies to ensure adequate coordination within a Urology Department during the COVID-19 pandemic.

PURPOSE: to provide an update on the management of a Urology Department during the COVID-19 outbreak, suggesting strategies to optimize assistance to the patients, to implement telemedicine and triage protocols, to define pathways for hospital access, to reduce risk of contagious inside the hospital and to determine the role of residents during the pandemic. MATERIALS AND METHODS: In May the 6th 2020 we performed a review of the literature through online search engines (PubMed, Web of Science and Science Direct). We looked at recommendations provided by the EAU and ERUS regarding the management of urological patients during the COVID-19 pandemic. The main aspects of interest were: the definition of deferrable and non-deferrable procedures, Personal Protective Equipment (PPE) and hospital protocols for health care providers, triage, hospitalization and surgery, post-operative care training and residents' activity. A narrative summary of guidelines and current literature for each point of interest was performed. CONCLUSION: In the actual Covid-19 scenario, while the number of positive patients globally keep on rising, it is fundamental to embrace a new way to deliver healthcare and to overcome challenges of physical distancing and self-isolation. The use of appropriate PPE, definite pathways to access the hospital, the implementation of telemedicine protocols can represent effective strategies to carry on delivering healthcare.

[Construction and evaluation of a novel diagnosis pathway for 2019-Corona Virus Disease].

Objective: To construct and evaluate a diagnosis pathway (Xiangya pathway) for Corona Virus Disease 2019 (COVID-19). Methods: Consecutive subjects aged ≥12 years old who were screened for COVID-19 were included in Xiangya Hospital of Central South University from January 23 to February 3, 2020, and the subjects were further divided into the inception cohort and the validation cohort. The gender, age, onset time of disease of the subjects were recorded. The information of epidemiological history, fever, and the declined blood lymphocytes were collected as clinical indicators, CT scan was used to evaluate the possibility of COVID-19 and range of lung involvement. According to the current Chinese national standards, throat swabs of suspected cases were collected and the nucleic acid of COVID-19 was detected by reverse transcription-polymerase chain reaction (RT-PCR). The Xiangya pathway was constructed with multi-indexes, compared with clinical indicators, CT results and Chinese national standards, their effectiveness of detecting confirmed cases were verified in the inception and validation cohort. Results: A total of 382 consecutive adults who was screened for COVID-19 were included, and 261 cases were in the inception cohort and 121 cases were in the validation cohort. Among the 382 cases, 192 were males (50.3%) and 190 were females (49.7%), with a median age of 35 years (range: 15-92 years). There were 183 cases (47.9%) with epidemiological history, 275 cases (72.0%) with fever, 212 cases (55.5%) with decreased peripheral blood lymphocytes, 114 cases (29.8%) with positive CT findings, 43 cases (11.3%) with positive CT-COVID-19, and 30 cases (7.9%) with positive virus nucleic acid by throat swab. Compared with clinical indicators, the sensitivity and specificity of CT were 0.950 and 0.704, respectively. The accuracy of CT to make a definite diagnosis was higher than that of epidemiological history, fever, and declined blood lymphocyte count (0.809 vs 0.660, 0.532, 0.596, P=0.001, 0.002, 0.003, respectively). The sensitivity of this pathway and the pathway recommended by the Health Commission of China were both high (all were 1.000), while the specificity and accuracy of the Xiangya pathway were higher than the one recommended by the Health Commission (0.872 vs 0.765, 0.778 vs 0.592, both P<0.001). The CT-COVID-19 reduced the missed diagnosis rate caused by false negative of nucleic acid test (31 vs 64), with difference rate of 51.6%, and the positive rate of nucleic acid test was 64.5% (20/31). In validation cohort, the specificity and accuracy of the Xiangya pathway was 0.967, the positive rate of nucleic acid test was 76.9%(10/13). Conclusions: The Xiangya pathway can predict the nucleic acid test results of COVID-19, and can be applied as a reliable strategy to screen patients with suspected COVID-19 among people aged ≥12 years in areas other than Hubei during the epidemic period of COVID-19. The cohort size needs to be increased for further validation.