COVID 19 - Possible interrelations with respiratory comorbidities caused by occupational exposure to various hazardous bioaerosols. Part II. Clinical course, diagnostics, treatment and prevention.

INTRODUCTION AND OBJECTIVE: The course of COVID-19 caused by the SARS-CoV-2 may be aggravated by bioaerosols containing other viruses, bacteria, and fungi, occurring mainly in the occupational environment. Hence, the diagnostics and treatment of COVID-19 should address such a possibility in the anamnesis, treatment and final recommendations for avoiding of adverse exposure. ABBREVIATED DESCRIPTION OF THE STATE OF KNOWLEDGE: As SARS-CoV-2 attacks primarily the respiratory system and the severe manifestation of COVID-19 is interstitial pneumonia, diagnostics should include the following clinical and laboratory examinations: chest X-ray; high resolution computed tomography (HRCT); pulmonary function tests; arterial-blood gas test; genetic tests for the presence of SARS-CoV-2, in the future with the use of highly specific and sensitive nano-based biosensors; tests for the presence of specific immunity against the antigens of microorganisms causing other infectious or allergic pulmonary diseases (in the case of anamnestic indications). Because an universally accepted treatment for COVID-19 does not exist, the hitherto prescribed antiviral and immune-modulating drugs should be used be with caution. In many cases, a better alternative could be a safe supportive therapy, such as supplementation of the diet with probiotics, prebiotics, vitamins and microelements. SUMMARY: The most important preventive measures against COVID-19 should include: vaccination; the use of filter or surgical masks; disinfection and sterilization; maintaining of well-functioning ventilation and air conditioning systems; reduction of the community air pollution which has been identified as an important factor increasing the COVID-19 severity. In the choice of preventive measures, the above should be considered for their potential efficacy against other bioaerosols as potential disease-aggravating agents.

Effects of Inspiratory Muscle Training Using an Electronic Device on Patients Undergoing Cardiac Surgery: A Randomized Controlled Trial

Abstract Background Cardiac surgery causes pathophysiological changes that favor the occurrence of pulmonary and functional complications. Objective To investigate the effects of inspiratory muscle training (IMT) with an electronic device on patients undergoing cardiac surgery. Methods A randomized controlled trial was conducted with 30 adult patients undergoing elective cardiac surgery. A control group (CG) received conventional physical therapy care, and an intervention group (IG) received IMT using the POWERbreathe K5® electronic device. Two daily sessions of physical therapy were performed at the intensive care unit and one daily session at the ward until the sixth postoperative day. The following variables were measured preoperatively and on the sixth postoperative day, in both groups: inspiratory muscle strength, dynamic inspiratory muscle strength, and peak inspiratory flow. Data distribution was evaluated by the Shapiro-Wilk test. Analysis of variance was used, and the results were considered statistically significant when p < 0.05. Results Maximal inspiratory pressure (71.7 ± 17.1 cmH2O vs 63.3 ± 21.3 cmH2O; p = 0.11], S-index (52.61 ± 18.61 vs 51.08 ± 20.71), and peak inspiratory flow [(2.94 ± 1.09 vs 2.79 ± 1.26)] were maintained in the IG but had a significant reduction in the CG. Conclusion IMT performed with an electronic device was effective at maintaining inspiratory muscle strength, dynamic inspiratory muscle strength, and peak inspiratory flow when compared to conventional physical therapy. Int J Cardiovasc Sci. 2020; [online].ahead print, PP.0-0

Approach to Patients with Unintentional Weight Loss.

Unintentional weight loss is a common clinical problem with a broad differential diagnosis that is clinically important because of the associated risks of morbidity and mortality. Community-dwelling adults are often diagnosed with malignancy, nonmalignant gastrointestinal disorders, and psychiatric disorders as the cause of unintentional weight loss, whereas institutionalized older adults are diagnosed most often with psychiatric disorders. Up to a quarter of patients do not have a diagnosis after comprehensive workup, and close follow-up is warranted. Treatment involves management of underlying causes.

Vitamin D Insufficiency and Deficiency and Mortality from Respiratory Diseases in a Cohort of Older Adults: Potential for Limiting the Death Toll during and beyond the COVID-19 Pandemic?

The COVID-19 pandemic goes along with increased mortality from acute respiratory disease. It has been suggested that vitamin D3 supplementation might help to reduce respiratory disease mortality. We assessed the prevalence of vitamin D insufficiency and deficiency, defined by 25-hydroxyvitamin D (25(OH)D) blood levels of 30-50 and <30 nmol/L, respectively, and their association with mortality from respiratory diseases during 15 years of follow-up in a cohort of 9548 adults aged 50-75 years from Saarland, Germany. Vitamin D insufficiency and deficiency were common (44% and 15%, respectively). Compared to those with sufficient vitamin D status, participants with vitamin D insufficiency and deficiency had strongly increased respiratory mortality, with adjusted hazard ratios (95% confidence intervals) of 2.1 (1.3-3.2) and 3.0 (1.8-5.2) overall, 4.3 (1.3-14.4) and 8.5 (2.4-30.1) among women, and 1.9 (1.1-3.2) and 2.3 (1.1-4.4) among men. Overall, 41% (95% confidence interval: 20-58%) of respiratory disease mortality was statistically attributable to vitamin D insufficiency or deficiency. Vitamin D insufficiency and deficiency are common and account for a large proportion of respiratory disease mortality in older adults, supporting the hypothesis that vitamin D3 supplementation could be helpful to limit the burden of the COVID-19 pandemic, particularly among women.

Preoperative Risk Factors Associated With PACU Pediatric Respiratory Complications: An Integrative Review.

PURPOSE: This article reviews state of the science of preoperative risk factors associated with postanesthesia care unit (PACU) pediatric respiratory complications. DESIGN: An integrative review. METHODS: A search of PubMed, Cumulative Index to Nursing and Allied Health Literature (CINAHL), MEDLINE, Scopus, Cochrane, and Joanna Briggs Institute databases was performed. Thirty-one articles, published between 2006 and 2018, were appraised for quality and the level of evidence using the Johns Hopkins Nursing Evidence-Based Practice Model. FINDINGS: These articles were grouped into the following categories: age, American Society of Anesthesiologists status, gender, airway comorbidities, syndromes, anomalies, pulmonary comorbidities, ethnicity, obesity, neurologic comorbidities, and cardiac comorbidities. CONCLUSIONS: Evidence identified significant preoperative and anesthesia risk factors that are associated with PACU pediatric respiratory complications. This article reveals the importance for the perioperative team to identify, assess for, communicate, and develop a management plan for pediatric respiratory complications.

Strategies to relieve dyspnoea in patients with advanced chronic respiratory diseases. A narrative review.

BACKGROUND AND OBJECTIVE: The management of symptoms in patients with advanced chronic respiratory diseases needs more attention. This review summarizes the latest evidence on interventions to relieve dyspnoea in these patients. METHODS: We searched randomised controlled trials, observational studies, systematic reviews, and meta-analyses published between 1990 and 2019 in English in PubMed data base using the keywords. Dyspnoea, Breathlessness AND: pharmacological and non pharmacological therapy, oxygen, non invasive ventilation, pulmonary rehabilitation, alternative medicine, intensive care, palliative care, integrated care, self-management. Studies on drugs (e.g. bronchodilators) or interventions (e.g. lung volume reduction surgery, lung transplantation) to manage underlying conditions and complications, or tools for relief of associated symptoms such as pain, are not addressed. RESULTS: Relief of dyspnoea has received relatively little attention in clinical practice and literature. Many pharmacological and non pharmacological therapies are available to relieve dyspnoea, and improve patients' quality of life. There is a need for greater knowledge of the benefits and risks of these tools by doctors, patients and families to avoid unnecessary fears which might reduce or delay the delivery of appropriate care. We need services for multidisciplinary care in early and late phases of diseases. Early integration of palliative care with respiratory, primary care, and rehabilitation services can help patients and caregivers. CONCLUSION: Relief of dyspnoea as well as of any distressing symptom is a human right and an ethical duty for doctors and caregivers who have many potential resources to achieve this.

Treatable traits: a new paradigm for 21st century management of chronic airway diseases: Treatable Traits Down Under International Workshop report.

"Treatable traits" have been proposed as a new paradigm for the management of airway diseases, particularly complex disease, which aims to apply personalised medicine to each individual to improve outcomes. Moving new treatment approaches from concepts to practice is challenging, but necessary. In an effort to accelerate progress in research and practice relating to the treatable traits approach, the Treatable Traits Down Under International Workshop was convened in Melbourne, Australia in May 2018. Here, we report the key concepts and research questions that emerged in discussions during the meeting. We propose a programme of research that involves gaining international consensus on candidate traits, recognising the prevalence of traits, and identifying a potential hierarchy of traits based on their clinical impact and responsiveness to treatment. We also reflect on research methods and designs that can generate new knowledge related to efficacy of the treatable traits approach and consider multidisciplinary models of care that may aid its implementation into practice.

Investigation into complementary and integrative medicine practitioners' clinical experience of intestinal permeability: A cross-sectional survey.

BACKGROUND: This study aims to explore the conditions complementary and integrative medicine (CIM) practitioners associate with increased intestinal permeability (IP) and the methods they employ to assess IP. METHODS: A cross-sectional survey of naturopaths, nutritionists and Western herbal medicine practitioners was undertaken (n = 227) through the Practitioner Research and Collaboration Initiative (PRACI) network. RESULTS: CIM practitioners (n = 36, response rate 15.9%) associate IP with gastrointestinal (100.0%), autoimmune (91.7%), skin (91.7%), neurological (80.6%), respiratory (55.6%) and liver-related conditions (44.4%). CIM practitioners frequently treat IP (72.7%); observing a minimum 3 months of treatment is required to resolve IP. Patient's signs and symptoms were the main reasons CIM practitioners suspected IP (94.1%). CONCLUSION: CIM practitioners observe a clinical link between IP and a wide range of conditions, including those not yet recognised within the literature. The clinical experience of CIM practitioners holds substantial value to the advancement of research and the clinical management of IP.

Psychosocial and respiratory disease related to severe bladder dysfunction and non-monosymptomatic enuresis.

OBJECTIVE: Complicated bladder dysfunctions (BD) (associated with infections/urological complications or irresponsive to treatment) are a small proportion of all cases, but are highly morbid, clinically and psychosocially. Our aim is to describe a cohort of complicated pediatric BD, using subgroup analysis to compare presentations and responses to treatment among genders, age groups, and patients with or without non-monosymptomatic enuresis (NME). We also relate severe BD to other health conditions or to social/behavioral problems and report treatment results. METHOD: Thirty-five cases of complicated BD were reviewed. Neurogenic bladders and anatomical urological problems were excluded. Justifications for referral, comorbidities, and social aspects/familial dynamics were studied. Overactive bladders were primarily treated with oxybutynin. Transcutaneous parasacral neuromodulation was used in case of insufficient response or unbearable side effects. For infrequent voiders, timed voiding and transcutaneous neuromodulation were counseled. RESULTS: Incontinence/enuresis were the motives for referral in only a third of the cases. UTI (42.9%) was the main reason for referral. Hydronephrosis was observed in 8.6% of the children. Respiratory/ENT problems, obesity, and precocious puberty were highly prevalent. Schooling problems and neuropsychiatric disease were common. Social problems were common. Five patients presented urological problems secondary to BD (hydroureteronephrosis, VUR, trabeculated bladder). Twenty percent of cases required high anticholinergic doses and 37.1% transcutaneous electrostimulation. Eight (22.9%) patients abandoned but later resumed therapy, and 14.6% did not follow treatment. Boys tended to be older than girls and presented NME, respiratory, and behavioral problems more often, with a significant difference for asthma and anxiety/depression. Associated health problems and neuropsychiatric treatment tended to be more frequent among those presenting NME. Non-enuretic children tended to show better results from treatment (see Table). CONCLUSION: The social characteristics of our population (severe cases, socially deprived, very poor, not well educated, and with limited access to health care) determine a very specific sampling. Our research demonstrated that even severe cases of BD affecting socially deprived children may be treated, with adhesion to treatment and results comparable with other cohorts of BD, although the children need multidisciplinary attention and close follow-up. Boys, older children, and NME are more difficult to treat and often have other associated health and behavioral problems. Stress-related conditions were common in severe BD. A relatively high occurrence of precocious puberty was an unexpected finding in our research.

Impact of multi-micronutrient supplementation on growth and morbidity of HIV-infected South African children.

Poor growth, micronutrient deficiencies and episodes of diarrhea and respiratory infections occur frequently in HIV-infected children. We investigated whether multi-micronutrient supplementation would improve the growth performance and reduce the number of episodes of diarrhea and/or of respiratory symptoms in HIV-infected children. In a double-blind randomized trial, HIV-infected South African children aged 4-24 months (n = 201) were assigned to receive multi-micronutrient supplements or placebo daily for six months. The children were assessed for respiratory symptoms or diarrhea bi-weekly; weights and heights were measured monthly. In total, 121 children completed the six month follow up study period (60%). A total of 43 children died; 27 of them had received supplements. This difference in mortality was not statistically significant (p = 0.12). Weight-for-height Z-scores improved significantly (p < 0.05) among children given supplements compared with those given placebo (0.40 (0.09-0.71)) versus -0.04 (-0.39-0.31) (mean (95% CI)). Height-for-age Z-scores did not improve in both treatment groups. The number of monthly episodes of diarrhea in the placebo group (0.36 (0.26-0.46)) was higher (p = 0.09) than in the supplement group (0.25 (0.17-0.33)) and the number of monthly episodes of respiratory symptoms was significantly higher (p < 0.05) among children on placebos (1.01 (0.83-1.79)) than those on supplements (0.66 (0.52-0.80)). Multi-micronutrient supplements significantly improved wasting and reduced the number of episodes of diarrhea and respiratory symptoms.

Anemia y déficit de hierro en niños con enfermedades respiratorias crónicas / Anemia and iron deficiency in children with chronic respiratory diseases

Introducción: Los niños con enfermedades respiratorias crónicas (ERC) tienen mayor riesgo de desarrollar anemia ferropriva, sin embargo, la ferropenia está infradiagnosticada. Objetivos: Describir el status de hierro (Fe) en niños con ERC y evaluar la respuesta a su suplementación profiláctica. Método: Estudio prospectivo de niños con ERC y adecuada ingesta de Fe en la dieta: se realizó hemograma, velocidad de eritro-sedimentación, proteína Creactiva y perfil de Fe. Posteriormente, aquellos con hemoglobina plasmática (Hb) normal no se suplementaron con Fe (Grupo A) y los que presentaban anemia ferropriva o factores de riesgo sí lo fueron (grupo B). Se evaluaron al 3º mes, después se suplementaron todos y se re-evaluaron al 4ºmes. Resultados: De 40 pacientes, con mediana de edad 30 meses (0,5 a 178), 60% eran hombres, 80% eutróficos. Requerían ventilación prolongada u oxigenoterapia 45%. Diagnósticos: 50% Bronquiolitis Obliterante post-infecciosa, 17,5% enfermedades de la vía aérea, 10% Displasia Broncopulmonar, 7,5% Fibrosis Quística y 15% otros. Basalmente 12,5% tuvo bajos depósitos de Fe y 20% anemia (la mayoría ferropriva). Completaron el estudio 25 niños: el grupo A disminuyó la ferritina sérica al 3ºmes (- 22,9 ± 30) y aumentó al 4ºmes (+12,8 ± 26) μg/L, (p = 0,013), sin cambio en la Hb. El grupo B tuvo ascenso de la Hb (91 ± 12 a 102 ± 12% del promedio para la edad, p = 0,04). Conclusión: La anemia ferropriva y la ferropenia son frecuentes en niños con ERC, quienes deterioran reversiblemente sus depósitos si no son suplementados. Sugerimos monitorizar con perfil de Fe y tratar precozmente, o suplementarlos en forma profiláctica (AU)

INTRODUCTION: Children with chronic respiratory disease (CRD) are at increased risk of iron deficiency and anemia, which is under-diagnosed. Aim: To describe the iron (Fe) status in children with CRD and to evaluate the effects of its prophylactic indication. METHOD: Prospective study of children with CRD and adequate Fe intake in the diet. At baseline we measured hemogram, C-reactive protein and Fe profile. Subsequently, those with normal plasma hemoglobin (Hb) were not supplemented with Fe (Group A) and those with iron deficiency anemia or at risk of developing it (group B) were supplemented. We evaluated them 3 months later and, after supplementing all, at 4th month. RESULTS: Of 40 patients, median 30 months old (0.5 to 178), 60% were male, 80% eutrophic. Ventilation or oxygen were required in 45%. Diagnoses: 50% Chronic Lung Damage, 17.5% airway diseases, 10% Bronchopulmonary Dysplasia, 7.5% Cystic Fibrosis and 13.5% other. At baseline 20% were anemic (mostly ferropenic) and 12.5% had an abnormal iron profile. At all, 25 children completed the study: in group A, serum ferritin decreased to 3(th) month (-22.9 ± 30) and incremented to 4(th)month (+12.8 ± 26) μg/L (p = 0.013), without difference in Hb. Group B had a rise in Hb (91 ± 12 to 102 ± 12% of the mean for age, p = 0.04).CONCLUSION: Anemia and ferropenia are frequent in children with CRD. Decrease of their iron reserves can be prevented if they are supplemented. We suggest monitoring properly and treating early or supplement them prophylactically (AU)

[Phytotherapy of respiratory tract diseases]. / Fitoterapia chorób dróg oddechowych.

Herbal medicines have been used in cough due to their antitussive and expectorant activity. Antitussives act either centrally on the cough center of the brain or peripherally on the cough receptors in the respiratory passages. The antitussive effect of many herbs results from the content of mucilage, which exerts protective and demulcent activity. The activity of expectorant herbs results primarily from their influence on the gastric mucose (saponins and ipec alkaloids). This proves reflex stimulation which leads to an increase in the secretion of bronchial glands. Volatile-oil type expectorant herbs exert a direct stimulatory effect on the bronchial glands by means of local irritation with antibacterial activity. In colds and flu, herbs containing volatile oil can be used; also, volatile oils are ingredients of syrups and liquids as well as external phytomedicines in the form of liniments, ointments, and inhalations. The paper shows the herbs and phytomedicines present on the Polish market used for the treatment of respiratory tract diseases.

Indicaciones y cumplimiento con la insuflación-exuflación mecánica domiciliaria en pacientes con enfermedades neuromusculares / Indications and Compliance of Home Mechanical Insufflation-Exsufflation in Patients with Neuromuscular Diseases

IntroducciónCon frecuencia, los pacientes con enfermedades neuromusculares (ENM) presentan un deterioro del mecanismo de la tos. Se ha demostrado la eficacia de la insuflación-exuflación mecánica (IEM) en la mejora del aclaramiento de las vías respiratorias aunque no se dispone de datos relacionados con su utilización domiciliaria a largo plazo. El objetivo del presente estudio fue describir las indicaciones, tolerabilidad y cumplimiento con la IEM domiciliaria en pacientes con ENM.MétodosAnálisis observacional de 4 años de duración de 21 pacientes ENM tratados con IEM domiciliaria. El diagnóstico incluyó esclerosis lateral amiotrófica (ELA) bulbar y no bulbar y otras ENM. La edad mediana fue de 58 años. Solo se incluyeron pacientes cooperadores con valores de flujo pico de tos basal (FTM) no asistido <270l/min. Todos los pacientes estaban sometidos a ventilación mecánica continua (seis mediante traqueostomía). La función pulmonar previa al inicio de la IEM (mediana) era: FVC, 0,81 l, MIP, 28cmH2O, MEP=22cmH2O y PCF=60l/min. Cuidadores no profesionales adiestrados previamente con el apoyo permanente de un profesional sanitario experto efectuaron la IEM. En los pacientes se monitorizó la pulsioximetría y se aplicó IEM siempre que la SpO2 fue <95%. El seguimiento mediano fue de 12 meses (3–41 meses)(AU)

ResultadosUtilizaron diariamente IEM 10 pacientes (nueve con ELA). La utilizaron de forma intermitente 11 pacientes durante las exacerbaciones y en 8 la aplicación precoz de IEM (guiada por la información de la oximetría) evitó la hospitalización. Todos los pacientes traqueostomizados utilizaron la IEM a diario y un mayor número de veces al día que los pacientes sometidos a ventilación mecánica no invasiva (VNI). Requirieron ingreso hospitalario 4 pacientes (3 ELA bulbar) debido a la acumulación de secreciones. La IEM fue bien tolerada y no se asoció a complicaciones. En general, los cuidadores la consideraron eficaz. Durante este período, 4 pacientes fallecieron, en relación con la progresión de la enfermedad.ConclusionesLa IEM domiciliaria es bien tolerada, eficaz y segura cuando la utilizan cuidadores adiestrados apropiadamente. Debe considerarse un complemento de la ventilación mecánica(AU)

IntroductionNeuromuscular disease (NMD) patients frequently have impaired cough. Mechanical insufflation-exsufflation (MI-E) has proven efficacy in improving airway clearance, however data related to its long-term home use is lacking. The purpose of this study was to describe indications, safety and compliance of home MI-E in NMD patients.MethodsFour years observational analysis of 21 NMD patients on home MI-E. Diagnosis included bulbar and non-bulbar Amyotrophic Lateral Sclerosis (ALS) and other NMD. Median age was 58 years. Only cooperative patients with unassisted baseline Peak Cough Flow (PCF) <270L/min were included. All patients were under continuous mechanical ventilation (6 by tracheostomy). Pulmonary function before initiation of MI-E (median): FVC=0.81L, MIP=28cmH2O, MEP=22cmH2O and PCF=60L/min. MI-E was performed by previously trained non-professional caregivers, with an on-call support of a trained health care professional. Patients had pulse oximetry monitorization and applied MI-E whenever SpO2<95%. Median follow-up was 12 months (3–41 months).ResultsTen patients (9 ALS) used MI-E daily. Eleven patients used MI-E intermittently, during exacerbations, and in 8 patients early application of MI-E (guided by oximetry feed-back) avoided hospitalization. All tracheostomized patients used MI-E daily and more times a day than patients under NIV. Four patients (3 bulbar ALS), were hospitalized due to secretion encumbrance. MI-E was well-tolerated and there were no complications. In general, caregivers considered MI-E effective. During this period, 4 patients died, related to disease progression.ConclusionsHome MI-E is well tolerated, effective and safe if used by well trained caregivers. MI-E should be considered as a complement to mechanical ventilation(AU)

Mechanism of development of pre-eclampsia linking breathing disorders to endothelial dysfunction.

High blood pressure is an important component of pre-eclampsia. The underlying mechanism of development of hypertension in pre-eclampsia is complicated and still remains obscure. Several theories have been advanced including endothelial dysfunction, uteroplacental insufficiency leading to generalized vasoconstriction, increased cardiac output, and sympathetic hyperactivity. Increased blood flow and pressure are thought to lead to capillary dilatation, which damages end-organ sites, leading to hypertension, proteinuria and edema. Additional theories have been put forward based on epidemiological research, implicating immunological and genetic factors. None of these theories have been substantiated. Based on a review of literature this paper postulates that the initiating event for the development of pre-eclampsia is intermittent hypoxia associated with irregular breathing during sleep, hypoapnea, apnea, inadequate respiratory excursions during the waking hours and inadequate cardiopulmonary synchronization (abnormal sympatho-vagal balance).

A case-control study of myelodysplastic syndromes in Belgrade (Serbia Montenegro).

The objective of the study was to investigate factors related to the occurrence of myelodysplatic syndromes (MDS) in the population of Belgrade (Serbia Montenegro). The case-control study was conducted during the period 2000-2003. The study group consisted of 80 newly diagnosed MDS patients and 160 sex- and age-matched hospital controls with nonmalignant and noninfectious diseases. The disease categories in the control group were circulatory (51 patients, 32%), gastrointestinal (53 patients, 33%), and ophthalmological (56 patients, 35%) disorders. Conditional univariate and multivariate logistic regression analyses were applied. Multivariate analysis showed the following factors to be significantly related to MDS: exposure to chemicals (OR = 10.8, 95%CI 3.2-36.2, p = 0.0001), viral upper respiratory tract infections (twice a year or more, OR = 5.8, 95%CI 2.5-13.6, p = 0.0001), exposure to insecticides, pesticides and herbicides (OR = 5.2, 95%CI 1.8-15.1, p = 0.003), coffee (OR = 5.1, 95%CI 1.9-13.7, p = 0.001), and alcohol consumption (OR = 2.2, 95%CI 1.1-4.6, p = 0.033). The findings support the hypotheses that exposure to chemical agents, pesticides, insecticides, and herbicides, certain lifestyle factors (alcohol and coffee consumption), and frequent viral infections may be involved in the etiology of MDS, but these results should be confirmed by further investigations.

[Immune state in uranium mine workers having respiratory diseases].

The authors present analysis of immune disorders in miners with variable severity of occupational respiratory diseases.