Impact of COVID-19 On the Development of Premature Labor

Background: According to the literature described, the perinatal results of maternal viral infections during pregnancy could lead to different obstetric complications; pregnant women have a higher risk of morbidity and mortality due to physiological changes in their immune system and cardiopulmonary system. has associated pneumonia in pregnant women with premature rupture of membranes before labor, preterm labor, fetal growth restriction, fetal death, and neonatal death. Methodology: A narrative review was carried out in which databases such as pubmed, science direct, scielo, academic google, among others, were used to search for articles, these were taken from indexed journals in first and second languages. The keywords DECS and MeSH, COVID-19, SARS-CoV-2, preterm birth and complications were used. Results: It’s no secret that women who are pregnant due to the same condition are at higher risk of severe illness and death from COVID-19 compared to non-pregnant women of reproductive age, and are at risk of adverse pregnancy outcomes, such as preterm delivery. Studies report that most cases of prematurity are secondary to respiratory complications and are done in order to preserve maternal health.

Intermittent Hypoxic Preconditioning: A Potential New Powerful Strategy for COVID-19 Rehabilitation

COVID-19 is a highly infectious respiratory virus, which can proliferate by invading the ACE2 receptor of host cells. Clinical studies have found that the virus can cause dyspnea, pneumonia and other cardiopulmonary system damage. In severe cases, it can lead to respiratory failure and even death. Although there are currently no effective drugs or vaccines for the prevention and treatment of COVID-19, the patient’s prognosis recovery can be effectively improved by ameliorating the dysfunction of the respiratory system, cardiovascular systems, and immune function. Intermittent hypoxic preconditioning (IHP) as a new non-drug treatment has been applied in the clinical and rehabilitative practice for treating chronic obstructive pulmonary disease (COPD), diabetes, coronary heart disease, heart failure, hypertension, and other diseases. Many clinical studies have confirmed that IHP can improve the cardiopulmonary function of patients and increase the cardiorespiratory fitness and the tolerance of tissues and organs to ischemia. This article introduces the physiological and biochemical functions of IHP and proposes the potential application plan of IHP for the rehabilitation of patients with COVID-19, so as to provide a better prognosis for patients and speed up the recovery of the disease. The aim of this narrative review is to propose possible causes and pathophysiology of COVID-19 based on the mechanisms of the oxidative stress, inflammation, and immune response, and to provide a new, safe and efficacious strategy for the better rehabilitation from COVID-19.

Occurrence of Cardiovascular Complications Associated with SARS-CoV-2 Infection: A Systematic Review

Cardiovascular Diseases represent the main cause of death in the world, and are associated with risk factors that cause serious complications in cases of infections, such as those of the respiratory tract. In March 2020 the World Health Organization declared a pandemic for SARS-CoV-2, a new coronavirus causing severe pneumonia, which emerged in December 2019 in Wuhan, China. The objective is to investigate the occurrence of cardiovascular complications associated with SARS-CoV-2 infection. It is a systematic review, quantitative, in the databases, PubMed and Science direct, including primary studies with hospitalized patients confirmed for COVID-19 and who presented cardiovascular complications, the form used tools for evaluation of quality and evidence, following the PRISMA recommendations. Results: 12 studies were included. The occurrence of cardiovascular complications was: 27.35% of the sample of 3,316 patients. Types: Acute cardiac injury 17.09%; Thromboembolism 4.73%; Heart failure 3.43%; Arrhythmias 1.77%; stroke 0.33%. Mean age 61 years. Conclusions: This study showed that there are several cardiovascular complications associated with SARS-CoV-2, that the main one is acute cardiac injury, which causes several instabilities in the cardiopulmonary system, and that it is associated with mortality.

Automatic detection of the Cyclic Alternating Pattern of sleep and diagnosis of sleep-related pathologies (Preprint)

BACKGROUND The Cyclic Alternating Pattern is a periodic electroencephalogram activity occurring during No Rapid Eye Movement sleep. It is a marker of sleep instability and correlated with several sleep-related pathologies. OBJECTIVE The objective of our study is to automatic detect the Cyclic Alternating Pattern of sleep and to diagnose sleep-related pathologies based on ECG and respiratory signals. METHODS Considering the connection between heart and brain of people, by statistically analysising and comparing the cardiopulmonary characteristics of people with no pathology and patients with sleep-related diseases, an automatic recognition scheme of Cyclic Alternating Pattern is proposed based on the Cardiopulmonary Resonance Indices. Using improved Hidden Markov and Random Forest, the scheme combines both the measurements of coupling state and the stability of the cardiopulmonary system during sleep. RESULTS In this article, the average recognition rate of A-phase reaches 84.67% and F1 score reaches 80.35% on the CAP Sleep Database in MIT-BIH database. CONCLUSIONS The scheme could automatically recognize the Cyclic Alternating Pattern accurately, and diagnose insomnia and narcolepsy using ECG and respiratory signals.

Automatic detection of the Cyclic Alternating Pattern of sleep and diagnosis of sleep-related pathologies (Preprint)

UNSTRUCTURED The Cyclic Alternating Pattern is a periodic electroencephalogram activity occurring during No Rapid Eye Movement sleep. It is a marker of sleep instability and correlated with several sleep-related pathologies. In this article, considering the connection between heart and brain of people, by statistically analysising and comparing the cardiopulmonary characteristics of people with no pathology and patients with sleep-related diseases, an automatic recognition scheme of Cyclic Alternating Pattern is proposed based on the Cardiopulmonary Resonance Indices. Using improved Hidden Markov and Random Forest, the scheme combines both the measurements of coupling state and the stability of the cardiopulmonary system during sleep. The average recognition rate of A-phase reaches 84.67% and F1 score reaches 80.35%. Results show that our scheme could automatically recognize the Cyclic Alternating Pattern accurately, and diagnose insomnia and narcolepsy.

Diagnostic algorithm for comorbidity of babesiosis and dirofilariasis in dogs, taking into account the correlation of redox homeostasis and morphofunctional disorders of the hepatorenal and cardiopulmonary systems

Activation of lipid peroxidation due to a disorder of redox homeostasis in dogs with comorbidity of babesiosis and dirofilariasis causes the involvement of not only the components of the hepatorenal system, but also the cardiopulmonary system in the pathological process against the background of the development of intoxication and hypoxic phenomena in hepatocytes and cardiomyocytes. As a result of the conducted biochemical studies of the blood of sick animals, it was found that the degree of redox homeostasis disorders directly correlates with the nature of morphofunctional disorders of the hepatorenal and cardiopulmonary systems, and the degree of these changes in the systems has an inverse correlation and is determined by the release of cytosolic enzymes into the blood. The involvement of the components of the hepatobiliary system in the pathological process is accompanied by a disorder of protein, carbohydrate, lipid and pigment metabolism.

PANCREATOGENIC MORPHOSTRUCTURAL CHANGES IN THE HEART, LUNGS AND OTHER TARGET ORGANS IN DESTRUCTIVE PANCREATITIS

Introduction. Pathomorphological changes in destructive pancreatitis develop both in the pancreas and in various organs and tissues, it determining the clinical course and outcome of the disease. Most often in destructive pancreatitis, the cardiopulmonary system is affected, as well as the liver, kidneys, and brain. Damage to these target organs is one of the main elements of pathogenesis and thanatogenesis in destructive pancreatitis and is of interest not only for surgeons, but also for other clinical specialists, including cardiologists. Aim. To conduct a retrospective analysis of the most common morphostructural changes in the cardiopulmonary system and other target organs based on the results of autopsy reports of the deceased from destructive forms of acute and chronic pancreatitis and to identify the most characteristic morphostructural changes in the target organs. Materials and methods. A retrospective analysis of the findings of histological examination of target organs of 203 patients who died from acute pancreatitis (K.85) and chronic pancreatitis with an outcome of pancreonecrosis (K. 86) in the in-patient surgical departments and intensive care and resuscitation units of Minsk over the period of 2015-2019 was performed. Results. In the course of study, we investigated the nature and structure of morphostructural changes in the pancreas and target organs (heart, lungs, liver, kidneys, spleen, and stomach) in destructive pancreatitis. Conclusions. In destructive pancreatitis, deep dystrophic, necrotic, circulatory and inflammatory changes are observed not only in the pancreatic tissue, but also in the target organs, which are primarily the heart, lungs, liver, kidneys and brain. In the myocardium, edema, circulatory and dystrophic changes are detected, in the lungs - edema, circulatory changes and alveocyte damage. In the pancreas, necrosis, leukocyte infiltration and hemorrhages are noted, i.e. both necrotic and inflammatory changes are observed at the same time. In the liver, the most typical changes are leukocyte infiltration of the portal tracts, fatty dystrophy of hepatocytes, vascular fullness and dilation of capillaries, central veins and sinusoids. The kidney tissue is dominated by circulatory changes, necrosis and dystrophy of the epithelium of the convoluted tubules, which are the morphological substrate of acute renal failure. Edema, circulatory and dystrophic changes are detected in the brain.