Pleurisy and pericarditis as a cause of atypical chest pain in patients with in early post-COVID-19 period.

During the pandemic COVID-19, there has been an increase in the number of patients with non-anginal chest pain at cardiologist appointments. Objective. To assess the incidence of signs of pleurisy and pericarditis after COVID-19 in non-comorbid patients with atypical chest pain and describe their characteristics according to echocardiography and magnetic resonance imaging. Materials and methods. From February 2021 to January 2022, 200 outpatients were prospectively enrolled in the study, all of them suffered from a discomfort in the heart region for the first time after SARS-CoV-2 infection. Inclusion criteria: 18-50 years old, 5-12 weeks after SARS-CoV-2 infection, non-anginal chest pain. Exclusion criteria: pneumonia or signs of pulmonary thromboembolism, coronary heart disease, congestive heart failure or kidney disease, clinical or laboratory signs of myocarditis, oncopathology, radiation or chemotherapy of the chest in past medical history. A survey was conducted (yes/no) for the presence of general malaise, quality of life deterioration, hyperthermia, cough. Ultrasound examination of the pericardium and pleura to detect effusion or post-inflammatory changes was performed in accordance with the recommendations. Magnetic resonance imaging was performed if ultrasound imaging was poor or there was no evidence of pericardial or pleural involvement in patients with typical symptoms. Results. 82 women and 118 men were included. Median of age 39 [28-46] years old. Pericarditis was diagnosed in 152 (76%) patients, including effusive pericarditis in 119 (78%), myocarditis in 6 (3%) and myopericarditis in 49 (25%) patients, pleurisy was detected in 22 (11%) patients, exudative pleurisy - in 11 (5.5%) patients with a predominant unilateral lesion of the mediastinal-diaphragmatic region adjacent to the heart. Hyperthermia was recorded in 2.5% of cases, general malaise - in 60% and a decrease in the quality of life - in 84%. Conclusion. Serositis as a cause of atypical chest pain among young non-comorbid patients in early postCOVID was identified in 87% of patients. In the coming years, it is probably worthwhile to perform ultrasound of the pericardium and pleura in all patients with chest pain.Copyright © 2022 Infectious Diseases: News, Opinions, Training.

Effect of Soft Tissue Manual Technique and Breathing Exercises on Pulmonary Function, Chest Expansion and Functional Status in Post COVID-19 Survivors: A Quasi-experimental Study

Introduction: It is known that around one third of Coronavirus Disease-2019 (COVID-19) patients develop severe pulmonary complications and acute respiratory distress syndrome, leading to long-term impairments in Pulmonary Function Test (PFT) and physical performance. Due to deteriorating health status of the COVID-19 survivors after their recovery, rehabilitation is must. Aim: To evaluate the effect of soft tissue manual technique and breathing exercises on PFT, chest expansion and functional status in Post COVID-19 Survivors. Materials and Methods: This quasi-experimental study was carried out in the Department of Cardiorespiratory Physiotherapy, MGM hospital, Aurangabad, Maharashtra, India, from November 2021 to July 2022. Total 54 subjects diagnosed with COVID-19 who required oxygen therapy and had persistent respiratory symptoms for three weeks to six months after the infection, were included. All the subjects received one week of soft tissue manual techniques which included proprioceptive neuromuscular function, muscle energy technique for recruitment of diaphragm, muscles of respiration and the ribcage. Breathing exercises were inculcated at the end of the session to ensure relaxation of the subjects. Subjects were assessed for PFT, chest expansion and post COVID-19 Functional Status Scale (PCFS) pre and post-treatment. Data were analysed through Wilcoxon signed-rank Test. Results: Amongst total 54 subjects included, 10 (18.6%) males and 44 (81.4%) females with mean age of 29.92±11.94. After one week of intervention p-value was 0.0001 for Forced Expiratory Volume (FEV1), FEV1/Forced Vital Capacity (FVC), Peak Expiratory Flow (PEF) with mean values for FEV1 at baseline was 1.91±0.51 and post-treatment was 2.45±0.34, FVC was 2.25±0.50 before the treatment whereas it was 2.73±0.36 post-treatment with p-value of 0.002, FEV1/FVC and PEF was 83.99±12.03 and 4.36±1.78 at baseline whereas, post-treatment it was 87.76±7.29 and 5.88±0.95 respectively. The p-value of 0.0001 was also similar for chest expansion. No statistically significant difference was found in post COVID-19 functional status (p-value=0.013). Conclusion: Positive changes in the ribcage's activation and integration with its muscles were seen in all of the study variables. Therefore, it is concluded that soft tissue manipulation techniques and breathing exercise improves functional status, thoracic expansion, in post COVID-19 survivors. [ FROM AUTHOR] Copyright of Journal of Clinical & Diagnostic Research is the property of JCDR Research & Publications Private Limited and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full . (Copyright applies to all s.)

[Morphological aspects of diaphragm dysfunction in COVID-19-associated pneumonia]. / Morfologicheskie aspekty disfunktsii diafragmy pri COVID-19-assotsiirovannoi pnevmonii.

OBJECTIVE: To assess morphological changes in the diaphragm and phrenic nerve in patients who died from COVID-19. MATERIAL AND METHODS: In a case-control study, an analysis was made of autopsy material of the diaphragm and phrenic nerve of those who died from COVID-19 infection complicated by SARS-CoV-2-associated pneumonia, confirmed in vivo by the presence of SARS-CoV-2 RNA (Group 1, n=12), and those who died with a diagnosis of acute cerebrovascular accident of the ischemic type without parenchymal respiratory failure (Group 2, n=3). RESULTS: The main histopathological features in the diaphragm of the 1st group were the edema of the pericellular spaces of muscle fibers, edema of perivascular spaces, diapedese hemorrhages, plethora in arteriolas, in most veins and capillaries, red blood clots were revealed; in the diaphragmatic nerve - swelling of the perineral space, severe edema around the nerve fibers inside the nerve trunk. In the diaphragm of group 2, edema of pericellular spaces of muscle fibers and edema of perivascular spaces were less pronounced (p<0.001), hemorrhages were not determined; in the diaphragmatic nerve, moderate edema of the perineral space, mild swelling inside the nerve trunk around the nerve fibers was revealed (p<0.001). The glycogen content in the muscle cells of group 1 is significantly lower compared to group 2 (p<0.001). CONCLUSION: The study confirms the characteristic pathological picture of organ damage in COVID-19. However, the leading pathological mechanism of organ damage requires further investigation.

Thoracic Mobilization and Respiratory Muscle Endurance Training Improve Diaphragm Thickness and Respiratory Function in Patients with a History of COVID-19.

Background and Objectives: Common problems in people with COVID-19 include decreased respiratory strength and function. We investigated the effects of thoracic mobilization and respiratory muscle endurance training (TMRT) and lower limb ergometer (LE) training on diaphragm thickness and respiratory function in patients with a history of COVID-19. Materials and Methods: In total, 30 patients were randomly divided into a TMRT training group and an LE training group. The TMRT group performed thoracic mobilization and respiratory muscle endurance training for 30 min three times a week for 8 weeks. The LE group performed lower limb ergometer training for 30 min three times a week for 8 weeks. The participants' diaphragm thickness was measured via rehabilitative ultrasound image (RUSI) and a respiratory function test was conducted using a MicroQuark spirometer. These parameters were measured before the intervention and 8 weeks after the intervention. Results: There was a significant difference (p < 0.05) between the results obtained before and after training in both groups. Right diaphragm thickness at rest, diaphragm thickness during contraction, and respiratory function were significantly more improved in the TMRT group than in the LE group (p < 0.05). Conclusions: In this study, we confirmed the effects of TMRT training on diaphragm thickness and respiratory function in patients with a history of COVID-19.

Posterior Mediastinal Mass: Unraveling a Non-Traumatic Herniation of the Caudate Lobe of the Liver

Introduction: Posterior mediastinal mass is most likely due to neurogenic tumor, meningocele or thoracic spine lesions. Caudate lobe of the liver herniation presenting as posterior mediastinal mass is a rare occurrence. Diaphragmatic herniation (DH) of the caudate lobe presents in various way including dyspnea, dyspepsia or incidental finding on imaging. We present a case of diaphragmatic hernia of the caudate lobe of the liver presenting as a posterior mediastinal mass found during evaluation of dyspnea. Case Description/Methods: A 75-year-old female presented to her physician with worsening shortness of breath from her baseline of 3 days duration. She had a history of sarcoidosis, COVID pneumonia over 1 year ago, COPD, diastolic heart failure, and hypertension. She was initially evaluated for COVID re-infection, which was negative and a CT of the chest with contrast to check for sarcoidosis flare revealed posterior mediastinal mass measuring 4.5 x 6.5 x 6.4 cm. Further work up with CT chest and abdomen with contrast revealed that the posterior mediastinal mass had similar attenuation as the liver and appears continuous with the caudate lobe of the liver. This was confirmed by NM scan of liver. Review of her records from an outside organization revealed similar finding on imaging a few years ago. Patient denied any history of trauma and laboratory work up revealed normal liver functions. After pulmonologist evaluation she was started on 2 L home oxygen following six-minute walk test, and also CPAP following a positive sleep study. Pulmonary function tests were performed and inhalers were continued. Given the chronicity of her symptoms and co-morbidities with stable caudate lobe herniation, conservative management was advised with surgery warranted if symptoms persist despite treatment (Figure 1). Discussion(s): DH is typically found on the left side with stomach or intestine while the right side is usually guarded by the liver. Isolated herniation of part of the liver into the thoracic cavity is rarely reported and is mostly acute from traumatic or spontaneous rupture requiring immediate repair. Our patient was initially evaluated for the posterior mediastinal mass for concerns of tumor, followed by the finding of what was thought to be acute herniation of the caudate lobe of liver into the thoracic cavity. Review of records showed this to be a stable lesion, we suspect that the patient had congenital diaphragmatic defect. Chronic and stable liver herniation into thoracic cavity can be managed conservatively if uncomplicated.

Role of Point-of-Care Ultrasound in the Management of Mechanical Ventilation

Ultrasound (US) became an essential tool in the hands of the intensivist and is now recommended both for procedural guidance and diagnostic purposes. Point-of-care ultrasound (POCUS) is an immediately available and repeatable, non-irradiating bedside tool integrating the clinical examination. Recent years were characterized by a growing interest in the fields of lung ultrasound (LUS) and diaphragm ultrasound (DUS). The combination of these two ultrasound techniques with critical care echocardiography (CCE) may integrate the classical approach to mechanically ventilated patients, both for monitoring and diagnostic purposes, finally contributing to the titration of mechanical ventilation and to the management of respiratory disease. Lung, diaphragm, and cardiac US provide significant information to improve the management of the critical patient under mechanical ventilation, from the initial assessment, through the ventilation setting (like PEEP) and its complication diagnosis (like pneumothorax, atelectasis), until the weaning process. LUS is of particular help in COVID-19 patients. It is potentially able to distinguish between the two phenotypes (type H and type L) of COVID-19, based on the different signs and patterns and also the assessment of prone positioning effects and lung recruitment maneuvers in these patients. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2022.

A Case Report of Iatrogenic Esophageal Perforation: Complication of Orogastric Tube Placement

Introduction: Orogastric tube insertion is a routine procedure in medical care. However, misplacement of the tube can cause a variety of complications, which can be life threatening in some instances. Case Description/Methods: 71-year-old male presented with dyspnea, fever, chills, cough, and myalgia for 2 weeks. He had tachycardia, tachypnea, and was hypoxic to 66% in room air. He was found to have acute hypoxic respiratory failure secondary to COVID-19 Pneumonia and was admitted to ICU. But, he continued to be hypoxic and was started on BiPAP. He eventually became altered, and was intubated. Post intubation orogastric tube (OGT) placement was unsuccessful on the first attempt due to resistance. On the second attempt, the nurse was able to advance partially (Figure). But, a chest XR showed OGT in the mediastinum, and OGT was removed. CT of neck and chest revealed pneumomediastinum with possible mid-thoracic esophageal perforation. The patient was started on broad-spectrum antibiotics and thoracic surgery was consulted. Given his mechanical ventilation requirement, surgery deemed him unfit to tolerate thoracotomy and the endoscopic procedure was not available in the hospital. So, recommendation was to manage conservatively. His hospital course was complicated by hypotension requiring vasopressors and metabolic acidosis in setting of acute renal failure requiring CRRT. Code status was changed by the family to Do Not Resuscitate due to his deteriorating condition. Eventually, he had a PEA arrest and was expired. Discussion(s): OGT intubation is performed at hospitals for feeding, medication administration or gastric decompression. Although it is considered a safe procedure, complications can arise due to OGT misplacement or trauma caused by the OGT itself or the intubation process. OGT misplacement is typically endotracheal or intracranial. Misplacement within the upper GI lumen is usually detected by a kink in the oropharynx or esophagus. The subsequent complications are identified by the structure that is perforated (e.g., mediastinitis or pneumothorax). Regardless of whether counteraction is perceived, the physician must be careful not to apply excessive force. The location of the OGT tip should be determined by a chest radiograph;visualization of the tip below the diaphragm verifies appropriate placement. Complications of OGT insertion are uncommon;however, the consequences are potentially serious, and the anatomy of the upper GI tract should be understood by all who are involved in the care.

Integrating Bioethics and Neonatal Palliative Care in a Pandemic: The Scope of Advocacy and Online Collaboration for Exceptional Life-Sustaining Medical and Surgical Interventions in a Regional Neonatal Intensive Care Unit

Purpose of Study: The regional NICU is an essential healthcare resource for families of newborns with serious life-threatening illnesses. Mechanical ventilation, cardiovascular therapies, therapeutic hypothermia, and neonatal surgeries are common life-sustaining interventions. Our NICU serves an underprivileged population in a resource poor environment and several ethical questions frequently emerge when facing extremes of innovative therapies. The pandemic and rapidly changing institutional protocols accentuated challenges faced by frontline NICU teams caring for newborns at risk for devastating illnesses and death. Concurrently, evolving paradigms in neonatal ethics required urgent and high quality palliative care in a background of racial and socioeconomic inequities, restrictive visitation policies, and limited healthcare resources. The purpose of this study was to ensure that neonates and their families receive ethically sound care, timely referrals for innovative therapies, and specialized palliative care in the strained and uncertain environment of the COVID-19 pandemic. Methods Used: The key steps consisted of structured and impromptu discussion forums for specialized palliative care and medical ethics, perinatal case conferences and pediatrics grand rounds on virtual platforms, educational webinars for interdisciplinary teams, and improved electronic communication. Online collaboration and innovative combinations of in-person and virtual meetings were utilized for urgently Incorporating clinical updates. Summary of Results: 1. A neonate with severe HIE and postnatally diagnosed congenital diaphragmatic hernia required emergent ECMO center referral. NICU providers utilized a structured bioethics and palliative care framework for providing family support and discussing the prognostication challenges of acute illnesses. 2. Many important bioethical questions emerged while caring for infants with life-threatening chromosomal abnormalities. Ethical tension was addressed by teaching tools, quality of life and pediatrics ethics conversations, mitigation of moral distress, contemporary clinical and surgical experience, community engagement, and family perspectives. 3. Ethical conflicts are central in the decision to resuscitate neonates born between 22 and 23 weeks of gestation. To provide urgent prenatal consultations and attend high risk deliveries, we collaborated across geographically distant healthcare systems, unified management strategies and analyzed outcomes data. 4. NEC in several extremely preterm babies had devastating outcomes and the team respected each family's voice with compassionate, shared decision-making for both curative care surgeries and palliative care. Conclusion(s): The new workflows, telephone and video conferences, and redirection to telehealth based family meetings did not change important outcomes during the pandemic. Advocacy and education for integrating bioethics and palliative care were vital facets of neonatal critical care in a resource poor and ever-changing pandemic environment.

Serological Assessment of the Effectiveness of Osteopathic Manipulative to Augment the Covid-19 Vaccine Immune Response

Purpose of Study: Previous Osteopathic manipulative treatment (OMT) research has shown evidence of increased lymphatic movement resulting in increased leukocyte and cytokine flow. One study even showed increased antibody titer response in patients when used in conjunction with the Hepatitis B vaccine. Given previous studies, our group conducted a year-long longitudinal randomized controlled clinical trial to evaluate the ability of OMT to improve the COVID-19 vaccine immune response. Methods Used: Subjects were randomized into either the control arm or OMT intervention arm. OMT consisted of myofascial release of the thoracic inlet, pectoral traction, diaphragm release with MFR, splenic pump, and thoracic pump applied the day of and the day following each vaccination session. All subjects in each group received the Pfizer mRNA COVID-19 vaccine. All subjects had blood drawn on day 0 (1st vaccine), day 7, day 21 (2nd vaccine), days 28, 90, 210, and 365. Anti-spike IgG immunoglobulin titers (AS IgG) were measured at all time points for all subjects. Side effects, adverse events, and medication usage in response to the vaccines or OMT was documented. Breakthrough cases with symptomology and medication usage was documented for both groups. The study was approved by the WesternU IRB committee, protocol #FB21/IRB026. Summary of Results: Data for 91 subjects were analyzed with 41 male (45.1%) and 50 female (54.9%). Age distribution was comparable between the two groups. Side effects and medication usage reported by the subjects was similar between groups (p>0.1). AS IgG measured at baseline distinguished between previously infected individuals and those naive to COVID-19, regardless of OMT treatment. For all time points measured, the average AS IgG in subjects trended higher in OMT group than control group. Two-way ANOVA analysis showed statistical significance at 1 week after 2nd injection (p<0.001) in the COVID-19 naive population. 13 symptomatic breakthrough infections were reported in the control group and 12 in the OMT group. Length of symptoms were reported as 8.36 +/- 4.60 days (control) and 4.62 +/- 2.60 days (OMT) (p<0.05). Length of medication usage was 3.64 +/- 3.58 days (control) and 1.23 +/- 1.24 days (OMT) (p<0.1). Conclusion(s): Both groups had comparable side effects after COVID-19 vaccination with no adverse events linked to OMT, indicating that OMT is a safe adjunct that can be used with COVID-19 vaccination. The data showed an enhanced immune response by OMT, as evidenced by increased levels of AS IgG in previously naive subjects. Although both control and OMT groups had similar rates of symptomatic breakthrough infection, the OMT data shows reduced length of symptoms and medication duration in this population when compared to control breakthrough infections. This study is underpowered for statistical significance at each time point and future vaccination studies should recruit more patients to confirm the trends seen here.

Year in Review 2022: Noteworthy Literature in Cardiothoracic Critical Care.

The past year in critical care medicine was notable for ongoing sequelae of the COVID-19 pandemic, including nationwide shortages and critical care demand in many regions in excess of usual operating capacity. Despite these challenges, evidence-based medicine and investigations into the optimal management of the critically ill continued to be at the forefront. This article is a collection of studies published in 2022 which are specifically relevant to cardiothoracic critical care. These noteworthy publications add to the existing literature across a broad spectrum of topics, from optimal timing of mechanical circulatory support (MCS), delirium prevention, updates in nutrition guidelines, alternative defibrillation techniques, novel ventilator management, and observing the downstream psychological impact of extracorporeal membrane oxygenation (ECMO) therapy.

A nontraumatic, right-sided diaphragmatic hernia in an adult diagnosed during an asthma attack

Case report We present a rare case of a right-sided diaphragmatic herniation of the ascending colon, in a 76-year-old asthmatic patient with a non-congenital diaphragmatic hernia, no history of trauma, surgery, or radiation. The patient presented at the emergency room with dyspnea, non-productive cough, wheezing, tachypnea, tight chest, respiratory failure. This patient has a 40-year history of severe persistent extrinsic asthma, treated with high doses of inhaled corticosteroids and LABA. Before the pandemic, this patient was hospitalized 3-4 times a year for her asthma attacks, but in the last 2 years, due to Covid-19, the patient was not hospitalized, resulting in uncontrolled asthma with daily symptoms. During the hospitalization, chest radiography was performed where the hernia was suspected and confirmed by a CT Scan. Despite the diagnosis of diaphragmatic herniation, she was clinically better with the proper asthma treatment and after consulting with her family she refused the intervention to correct the hernia. She has had two vaginal deliveries, no malignancies, no trauma, no intervention in her life. In this case, the only possible cause for the herniation of the colon is persistent cough combined with advanced age, chronic steroid use, and obstructive lung disease. Non-traumatic, right-sided diaphragmatic hernia of the colon in adults is very rare. Persistent cough with other predisposing conditions of this patient is the cause of this herniation. The chest X-ray and CT were essential for making the diagnosis. Rare hernias like this should be kept in mind when coming to a diagnosis.

Year 2022 in review - Respiratory failure and lung support therapy.

The use of ECMO methods has experienced a significant boom in recent years, mainly due to the SARS-CoV-2 pandemic. Many workplaces that had little or no experience with ECMO currently possess the relevant technology and can use this method in real clinical practice. The prone position (PP) has changed from the original position of rescue intervention to the leading position among the methods that should be considered standard in patients with a severe form of acute respiratory failure. Thus, the combination of pronation and ECMO support has received considerable attention in recent years. This text, although a year in the 2022 review, briefly discusses available evidence-based medicine publications over the past few years devoted to this topic. The use of PP in clinical conditions other than mechanical ventilation (MV), e.g. in conscious patients on non-invasive ventilatory support, is described in the next section of this text. Another topic is the correct setting of MV while using PP and the effect of PP in pregnant patients with COVID-19. Inhalational anesthetics and their use for sedation of patients on UPV are currently among the frequently discussed topics within the optimization of intensive care. Conversely, ventilator-induced dysfunction of the main respiratory muscles, especially the diaphragm, has been a serious topic in critical care for a long time. Next, critically ill patients are at risk of hyperoxemia both as part of MV and ECMO support. The negative impact of this condition is the final topic of the article.Copyright © 2022, Czech Medical Association J.E. Purkyne. All rights reserved.

Diaphragm Muscle Weakness Might Explain Exertional Dyspnea 15 Months after Hospitalization for COVID-19.

Rationale: Dyspnea is often a persistent symptom after acute coronavirus disease (COVID-19), even if cardiac and pulmonary function are normal. Objectives: This study investigated diaphragm muscle strength in patients after COVID-19 and its relationship to unexplained dyspnea on exertion. Methods: Fifty patients previously hospitalized with COVID-19 (14 female, age 58 ± 12 yr, half of whom were treated with mechanical ventilation, and half of whom were treated outside the ICU) were evaluated using pulmonary function testing, 6-minute-walk test, echocardiography, twitch transdiaphragmatic pressure after cervical magnetic stimulation of the phrenic nerve roots, and diaphragm ultrasound. Diaphragm function data were compared with values from a healthy control group. Measurements and Main Results: Moderate or severe dyspnea on exertion was present at 15 months after hospital discharge in approximately two-thirds of patients. No significant pulmonary function or echocardiography abnormalities were detected. Twitch transdiaphragmatic pressure was significantly impaired in patients previously hospitalized with COVID-19 compared with control subjects, independent of initial disease severity (14 ± 8 vs. 21 ± 3 cm H2O in mechanically ventilated patients vs. control subjects [P = 0.02], and 15 ± 8 vs. 21 ± 3 cm H2O in nonventilated patients vs. control subjects [P = 0.04]). There was a significant association between twitch transdiaphragmatic pressure and the severity of dyspnea on exertion (P = 0.03). Conclusions: Diaphragm muscle weakness was present 15 months after hospitalization for COVID-19 even in patients who did not require mechanical ventilation, and this weakness was associated with dyspnea on exertion. The current study, therefore, identifies diaphragm muscle weakness as a correlate for persistent dyspnea in patients after COVID-19 in whom lung and cardiac function are normal. Clinical trial registered with www.clinicaltrials.gov (NCT04854863).

Prognostic Value of Diaphragm Diameter, Muscle Volume, and Bone Mineral Density in Critically Ill COVID-19 Patients.

OBJECTIVE: We aimed to analyze the prognostic value of muscle volume (MV), bone mineral density (BMD), and diaphragm diameter (DD) in COVID-19. METHOD: The study included 498 patients admitted to the intensive care unit (ICU) with a positive polymerase chain reaction test for COVID-19 from March 11, 2020, through August 31, 2022. The patients' laboratory and demographic data of the patients at the time of ICU admission were recorded. MV, DD, and BMD measurements were performed using computed tomography examinations. Muscle index (MI) was calculated as MV/height2. Quartiles were determined for all 4 measurements. Patients in the lowest quartile were recorded as having low MV, MI, DD, and BMD values. The parameters were evaluated for the whole group and compared according to gender and mortality. The multiple regression analysis was performed for the prediction of mortality. RESULTS: In the mortality group, the male and female patients had significantly statistically lower values in MV (P < .001 and P = .002, respectively), MI (P < .001 and P = .005, respectively), DD (P < .001 and P < .001, respectively), and BMD (P = .002 and P < .001, respectively). In the multiple regression analysis, low MI (OR: 2.03, 95% CI: 1.14-3.61, P = .016) and DD (OR: 10.47, 95% CI: 5.59-19.59, P < .001) values remained significant for the prediction of mortality. CONCLUSION: BMD is a risk factor for mortality in patients with severe COVID-19, but cannot be used as an independent predictor. However, MI and DD can be used as independent predictors of mortality even in severe cases.

Thoracic Ultrasound in COVID-19: Use of Lung and Diaphragm Ultrasound in Evaluating Dyspnea in Survivors of Acute Respiratory Distress Syndrome from COVID-19 Pneumonia in a Post-ICU Clinic.

INTRODUCTION: Dyspnea is a common symptom in survivors of severe COVID-19 pneumonia. While frequently employed in hospital settings, the use of point-of-care ultrasound in ambulatory clinics for dyspnea evaluation has rarely been explored. We aimed to determine how lung ultrasound score (LUS) and inspiratory diaphragm excursion (DE) correlate with patient-reported dyspnea during a 6-min walk test (6MWT) in survivors of COVID-19 acute respiratory distress syndrome (ARDS). We hypothesize higher LUS and lower DE will correlate with dyspnea severity. STUDY DESIGN AND METHODS: Single-center cross-sectional study of survivors of critically ill COVID-19 pneumonia (requiring high-flow nasal cannula, invasive, or non-invasive mechanical ventilation) seen in our Post-ICU clinic. All patients underwent standardized scanning protocols to compute LUS and DE. Pearson correlations were performed to detect an association between LUS and DE with dyspnea at rest and exertion during 6MWT. RESULTS: We enrolled 45 patients. Average age was 61.5 years (57.7% male), with average BMI of 32.3 Higher LUS correlated significantly with dyspnea, at rest (r = + 0.41, p = < 0.01) and at exertion (r = + 0.40, p = < 0.01). Higher LUS correlated significantly with lower oxygen saturation during 6MWT (r = -0.55, p = < 0.01) and lower 6MWT distance (r = -0.44, p = < 0.01). DE correlated significantly with 6MWT distance but did not correlate with dyspnea at rest or exertion. CONCLUSION: Higher LUS correlated significantly with patient-reported dyspnea at rest and exertion. Higher LUS significantly correlated with more exertional oxygen desaturation during 6MWT and lower 6MWT distance. DE did not correlate with dyspnea.

Special considerations in the premature and ex-premature infant

Advances in neonatal medicine have progressively increased the survival of premature infants. Increased survival has however come at the cost of increased number of infants with prematurity-related complications. This is represented by high rates of respiratory distress syndrome, bronchopulmonary dysplasia (BPD), necrotizing enterocolitis (NEC), sepsis, periventricular leukomalacia (PVL), intraventricular haemorrhage (IVH), cerebral palsy, hypoxic ischaemic encephalopathy (HIE) and visual and hearing problems in survivors. In addition to prolonged hospital stay after birth, readmission to hospital in the first year of life is common if chronic lung disease exists. Around 3% of newborns have a congenital physical anomaly with 60% of congenital anomalies affecting the brain or heart and around 1% having multiple anomalies. Individual congenital conditions requiring surgical intervention in the neonatal period are rare. Neonates have a higher perioperative mortality risk largely due to the degree of prior illness, the complexity of their surgeries, and infant physiology. The maintenance of oxygenation and perfusion in the perioperative phase is critical as both affect cerebral perfusion and neurocognitive outcome but the triggers for intervention and the thresholds of physiological parameters during neonatal anaesthesia are not well described. After even minor surgical procedures, ex-premature infants are at higher risk for postoperative complications than infants born at term.Copyright © 2022

Inspiratory muscle capacity in Long Covid

Persistent symptoms beyond three months are common following acute infection with Covid 19 and termed Long Covid. There are a broad range of symptoms including breathlessness, fatigue, reduced exercise tolerance, chest pains, sleep disturbance and palpitations. The pathophysiology of Long Covid is poorly understood limiting treatment options. We hypothesised that diaphragm muscle weakness would be common in Long Covid and may in part be responsible for a number of the reported symptoms thereby providing a therapeutic option via inspiratory muscle training. We examined lung function, hand grip strength, Chester step test and symptom scores;mMRC (modified Medical Research Council), HADS (Hospital Anxiety And Depression), SF36 quality of life, Chalder Fatigue, in patients attending the Beacon Hospital Long Covid Clinic. Ethical approval was granted by our institutional review board. 101 patients were aged 40 +/- 14 years (Mean +/- SD). 63% were female. 75% had their acute illness managed at home. mMRC was 0 (16%), 1 (39%), 2 (34%), 3 (9%), 4 (2%). Predicted spirometry was normal however DLCO (diffusing capacity for carbon monoxide) was reduced at 86 +/- 14 % predicted as was MIP (Mean Inspiratory Pressure) at 70 +/- 25 % predicted. DLCO was significantly different when analysed by mMRC scores (ANOVA p<0.005). DLCO was correlated with MIP (R2= 0.22, p<0.0005). We propose implementing inspiratory muscle training as part of the therapeutic response to Long Covid to ascertain the role of diaphragm weakness in the pathophysiology of this syndrome and evaluate its effect on a range of presenting symptoms.

Acute Phrenic Neuropathy and Diaphragmatic Dysfunction as a Complication of COVID-19: A Report of Four Cases.

Among the neurological manifestations associated with coronavirus disease 2019 (COVID-19), neuropathies are rare. They have been associated with prolonged prostration and metabolic failure in a seriously ill patient. We present a case series of four Mexican patients diagnosed with diaphragmatic dysfunction due to phrenic neuropathy during acute COVID-19, documented by conduction velocities of the phrenic nerves. Blood tests, chest computed tomography (CT), and nerve conduction velocities of the phrenic nerves were performed. COVID-19 patients with phrenic nerve neuropathy represent a therapeutic challenge since they have high oxygen requirements due to the malfunction of ventilatory mechanics secondary to neuromuscular damage, as well as the damage that pneumonia generates in lung tissue. We confirm and extend the neurological manifestations of COVID-19, the impact on the neuromuscular dysfunction of the diaphragm, and its consequences such as the difficulty of weaning from mechanical ventilation.