Convalescent Pulmonary Dysfunction Following Hantavirus Pulmonary Syndrome in Panama and the United States (original) (raw)
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Cureus
Introduction Coronavirus disease 2019 (COVID-19) is a deadly virus affecting multiple organ systems, predominantly the respiratory system. Dyspnea along with the deterioration of health-related quality of life (HRQoL) is common in COVID-19 patients discharged from a dedicated Coronavirus disease (COVID) hospital. Very few studies in India used HRQoL for the assessment of COVID-19 patients after discharge. Our article aims to assess the factors associated with the persistence of dyspnea and HRQoL in discharged patients of COVID-19. Methods A total of 48 patients were included in this prospective observational study. Ethical approval from Institutional Ethics Committee was obtained before the enrolment of patients. Patients having dyspnea at exertion and during discharge were selected for this study. Modified Medical Research Council (mMRC) scale and modified Borg scale were used for assessing dyspnea on activity, and Saint George's Respiratory Questionnaire (SGRQ) was used to assess HRQoL. Data were collected on the day of discharge (D0) and after 60 days (D60) post-discharge. The significance of changes in parameters from D0 to D60 was evaluated by paired t-test. Results The mean mMRC, modified Borg, and SGRQ scores at D0 were 2.38±0.98, 3.15±2.12, and 45.36±27.32, respectively, which were improved to 0.94±0.86, 0.94±1.27, and 19.22±18.96 at D60. Age showed significant positive correlations with initial modified Borg (r=0.292, p=0.044) and SGRQ (r=0.332, p=0.021) scores. Body mass index showed significant positive correlations with initial mMRC (r=0.352, p=0.014) and SGRQ (r=0.419, p=0.003) scores. Conclusion Our study showed that on discharge, many COVID patients have impaired HRQoL. Many of them also have dyspnea on exertion. With the early institution of standard pulmonary rehabilitation protocol, symptoms and HRQoL improves rapidly in a month. Different influencing factors were identified. Long-term follow-up with a bigger sample size is needed to formulate a management strategy for these patients.
“I Am Not the Same Man…”: A Case Report of Management of Post-COVID Refractory Dyspnea
Journal of Palliative Medicine, 2022
The SARS-CoV-2 pandemic brings with it a significant number of post-COVID symptoms, including persistent dyspnea and neuropsychological sequelae. The palliative approach in the treatment of these refractory symptoms is effective and widely applicable in different settings. We report the case of a patient with refractory dyspnea admitted to a specialized palliative care unit with a very poor prognosis. The application of different tools of the palliative approach proved to be effective: a detailed advanced care planning and open communication, the respect for the patient's wishes and optimal use of his resources-the salutogenesis-an adaptation of the rhythm of care to that of the patient. The patient was then discharged for rehabilitation, and finally returned home.
Journal of Surgical Research, 2010
Background. Patients with acute respiratory distress syndrome (ARDS) are often ventilated with high airway pressure. Brief loss of airway pressure may lead to an extended loss of oxygenation. While using high frequency oscillatory ventilation (HFOV) in a porcine acute lung injury model, two animals became disconnected from the ventilator with subsequent loss of airway pressure. We compared the two disconnected animals to the two animals that remained connected to determine causes for the extended reduction in oxygenation. Methods. ARDS was induced using 5% Tween. Thirty min of nonprotective ventilation (NPV) followed before placing the pigs on HFOV. Measurements were made at baseline, after lung injury, and every 30min during the 6-h study. Disconnections were treated by hand-ventilation and a recruitment maneuver before being placed back on HFOV. The lungs were histologically analyzed and wet/dry weights were measured to determine lung edema. Results. Hemodynamics and lung function were similar in all pigs at baseline, after injury, and following NPV. The animals that remained connected to the oscillator showed a continued improvement in PaO 2 / FiO 2 (P/F) ratio throughout the study. The animals that experienced the disconnection had a significant loss of lung function that never recovered. The disconnect animals had more diffuse alveolar disease on histologic analysis. Conclusions. A significant fall in lung function results following disconnection from HFOV, which remains depressed for a substantial period of time despite efforts to reopen the lung. Dispersion of edema fluid is a possible mechanism for the protracted loss of lung function.
A 2‐month post‐ COVID ‐19 follow‐up study on patients with dyspnea
Health Science Reports, 2021
Background and aims: Dyspnea is one of the most common symptoms associated with the COVID-19 caused by novel coronavirus SARS-CoV-2. This study aimed to assess the prevalence of dyspnea, observe co-variables, and find predictors of dyspnea after 2 months of recovery from COVID-19. Methods: A total of 377 patients were included in the study based on their responses and clinical findings during initial admission to the hospital with COVID-19. After excluding five deceased patients, a total of 327 patients were interviewed through telephone using a 12-point dyspnea scale and using relevant questions to gauge the patient clinically. Interviews were carried out by trained physicians, and responses were recorded and stored. All analyses were carried out using the statistical programming language R. Results: Of the total 327 participants in the study, 34% had stated that they were suffering from respiratory symptoms even after 2 months of COVID-19. The study demonstrated that patient oxygen saturation level SpO 2 (P = .03), D-dimer (P = .001), serum ferritin (P = .006), and the presence and severity of dyspnea are significantly correlated. In addition to that, patient smoking history (P = .012) and comorbidities such as chronic obstructive pulmonary disease (COPD) (P = .021) were found to be statistically significant among groups. Conclusion: These findings of this study can be useful for predicting and managing long-term complications of COVID-19.
A Study to Analyze Pulmonary Function Among Post Covid Patients Having Different Comorbid Conditions
https://www.ijhsr.org/IJHSR\_Vol.13\_Issue.5\_May2023/IJHSR-Abstract22.html, 2023
INTRODUCTION: COVID-19 caused by severe SARS-CoV-2 is a global pandemic. People of any age who have underlying medical conditions, such as hypertension and diabetes and obesity, have shown worse prognosis and increased morbidity and mortality rates, also have been linked to more hospitalization and ICU admissions. NEED OF STUDY: Need arise for this due to limited PFT data and its uses, for rehabilitation program, to corelate upcoming variants and its effect, for new covid guidelines and management. METHEDOLOGY: The technique of procedure was in accordance with the standardized reference from "American thoracic society of standardization of spirometry". Test maneuvers included parameters like, FVC, FEV1, FEV1/FVC ratio, PEFR. RESULT: The study suggestive that there is significant difference between age, Weight, FVC, PEFR and FEV1. whereas the height and FEV1/FVC values doesn't show any significant difference among the group. CONCLUSION: The study concluded that all the post covid patients show variations in different lung functions. The study is suggestive that there is significant difference between age, Weight, FVC, PEFR and FEV1. whereas the height and FEV1/FVC values doesn't show any significant difference among the group.
Inappropriate Ventilatory Homeostatic Responses in Hospitalized COVID-19 Patients
Frontiers in Neurology, 2022
Background: The clinical presentation of COVID-19 suggests altered breathing control-tachypnoea, relative lack of dyspnoea, and often a discrepancy between severity of clinical and radiological findings. Few studies characterize and analyse the contribution of breathing drivers and their ventilatory and perceptual responses. Aim: To establish the prevalence of inappropriate ventilatory and perceptual response in COVID-19, by characterizing the relationships between respiratory rate (RR), dyspnoea and arterial blood gas (ABG) in a cohort of COVID-19 patients at presentation to hospital, and their post-Covid respiratory sequelae at follow-up. Methods: We conducted a retrospective cohort study including consecutive adult patients admitted to hospital with confirmed COVID-19 between 1st March 2020 and 30th April 2020. In those with concurrent ABG, RR and documented dyspnoea status on presentation, we documented patient characteristics, disease severity, and outcomes at hospital and 6-week post-discharge. Results: Of 492 admissions, 194 patients met the inclusion criteria. Tachypnoea was present in 75% pronounced (RR>30) in 36%, and persisted during sleep. RR correlated with heart rate (HR) (r = 0.2674), temperature (r = 0.2824), CRP (r = 0.2561), Alveolar-arterial (A-a) gradient (r = 0.4189), and lower PaO 2 /FiO 2 (PF) ratio (r = −0.3636). RR was not correlated with any neurological symptoms. Dyspnoea was correlated with RR (r = 0.2932), A-a gradient (r = 0.1723), and lower PF ratio (r = −0.1914), but not correlated with PaO 2 (r = −0.1095), PaCO 2 (r = −0.0598) or any recorded neurological symptom except for altered consciousness. Impaired ventilatory homeostatic control of pH/PaCO 2 [tachypnoea (RR>20), hypocapnia (PaCO 2 <4.6 kPa), and alkalosis (pH>7.45)] was observed in 29%. This group, of which 37% reported no dyspnoea, had more severe respiratory disease (A-a gradient 38.9 vs. 12.4 mmHg; PF ratio 120 vs. 238), and higher prevalence of anosmia (21 vs. 15%), dysgeusia (25 vs. 12%), headache (33 vs. 23%) and nausea (33 vs. 14%) with similar rates of new anxiety/depression (26 vs. 23%), but lower incidence of past neurological or psychiatric diagnoses (5 vs. 21%) Jareonsettasin et al. COVID-19 Inappropriate Ventilatory Homeostatic Response compared to appropriate responders. Only 5% had hypoxia sufficiently severe to drive breathing (i.e. PaO 2 <6.6 kPa). At 6 weeks post-discharge, 24% (8/34) showed a new breathing pattern disorder with no other neurological findings, nor previous respiratory, neurological, or psychiatric disorder diagnoses. Conclusions: Impaired homeostatic control of ventilation i.e., tachypnoea, despite hypocapnia to the point of alkalosis appears prevalent in patients admitted to hospital with COVID-19, a finding typically accompanying more severe disease. Tachypnoea prevalence was between 12 and 29%. Data suggest that excessive tachypnoea is driven by both peripheral and central mechanisms, but not hypoxia. Over a third of patients with impaired homeostatic ventilatory control did not experience dyspnoea despite tachypnoea. A subset of followed-up patients developed post-covid breathing pattern disorder.
The Annals of Thoracic Surgery, 2001
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Cardiopulmonary Exercise Test in the Detection of Unexplained Post-COVID-19 Dyspnea
International Heart Journal
There is emerging evidence of prolonged recovery in survivors of coronavirus disease 2019 (COVID-19), even in those with mild COVID-19. In this paper, we report a case of a 39-year-old male with excessive body weight and a history of borderline values of arterial hypertension without therapy, who was mainly complaining of progressive dyspnea after being diagnosed with mild COVID-19. According to the recent guidelines on the holistic assessment and management of patients who had COVID-19, all preferred diagnostic procedures, including multidetector computed tomography (CT), CT pulmonary angiogram, and echocardiography, should be conducted. However, in our patient, no underlying cardiopulmonary disorder has been established. Therefore, considering all additional symptoms our patient had beyond dyspnea, our initial differential diagnosis included anxiety-related dysfunctional breathing. However, psychiatric evaluation revealed that our patient had only a mild anxiety level, which was unlikely to provoke somatic complaints. We decided to perform further investigations considering that cardiopulmonary exercise test (CPET) represents a reliable diagnostic tool for patients with unexplained dyspnea. Finally, the CPET elucidated the diastolic dysfunction of the left ventricle, which was the most probable cause of progressive dyspnea in our patient. We suggested that, based on uncontrolled cardiovascular risk factors our patient had, COVID-19 triggered a subclinical form of heart failure (HF) with preserved ejection fraction (HFpEF) to become clinically manifest. Recently, the new onset, exacerbation, or transition from subclinical to clinical HFpEF has been associated with COVID-19. Therefore, in addition to the present literature, our case should warn physicians on HFpEF among survivors of COVID-19.