Nebulized Heparin to Reduce COVID-19-induced Acute Lung Injury: A Prospective Observational Study.

Background: High mortality due to COVID-19 disease has been a serious concern, a few of the causes being disseminated intravascular coagulation (DIC) and venous thromboembolism. Considering this, some experts have used heparin. However, its role still needs to be validated. Materials and methods: This study predicts the role of nebulized heparin in decreasing the severity of lung injury caused by COVID-19. Thirty patients admitted with COVID-19 acute respiratory distress syndrome (ARDS) in the intensive care unit (ICU) of All India Institute of Medical Sciences, Rishikesh, were included in this study, which was conducted over a period of 3 months. Patients were nebulized with 2 mL of heparin 5,000 units/mL IV formulation diluted with 3 mL of 0.9% sodium chloride, every 6 hours for a total duration of 7 days. Improvement in oxygenation (ratio of partial pressure of oxygen in blood and fraction of inspired oxygen delivered, pO2/FiO2 ratio) was calculated as the primary outcome. Other parameters like effect on inflammatory markers (neutrophil-lymphocyte ratio, total leukocyte count, interleukin (IL-6), and D-dimer values), time to liberate from mechanical ventilation, and hospital stay were calculated as secondary outcomes. Results: In our study population, the mean age was 54.5 years and the majority of patients were males (79.0%). All patients received prone ventilation and none of them required tracheostomy. However, 5 patients (16.6%) succumbed to illness. After nebulization with unfractionated heparin, no statistically significant difference was seen in the neutrophil-lymphocyte ratio (mean = 6.87, p = 0.318) and interleukin (IL-6) levels (mean = 62.85, p = 0.6) over 7 days. Similarly, the D-dimer level also had no statistically significant change (mean = 1853.73 p = 0.570). However, there was a statistically significant improvement in oxygenation (pO2/FiO2 ratio) over 7 days (mean = 184.96, p = 0.00). Similarly, there was a significant improvement in PaO2 (84.17 ± 33.82) and SO2 (92.30 ± 3.49). Although, no significant changes were seen in the partial pressure of carbon dioxide on nebulized heparin administration. Conclusion: Administration of nebulized heparin in COVID-19 pneumonia with mild ARDS may improve oxygenation and result in the improvement of inflammatory markers with variable sensitivity and specificity. How to cite this article: Gupta B, Chandrakar S, Gupta N, Jain G. Nebulized Heparin to Reduce COVID-19-induced Acute Lung Injury: A Prospective Observational Study. Indian J Crit Care Med 2023;27(3): 222-224.

Airway management training program for nurses via online course in COVID-19 preparedness.

BACKGROUND: Nursing officers are an integral component of any medical team. They participate in taking care of basic airway management and assist in advanced airway management, specifically amidst the current coronavirus disease 2019 (COVID-19) pandemic. AIM: To assess the efficacy of a standardized web-based training module for nurses in preparedness to fight against COVID-19. METHODS: The training was held in three sessions of 1 h each, consisting of live audio-visual lectures, case scenarios, and skill demonstrations. The sequence of airway equipment, drug preparation, airway examination, and plans of airway management was demonstrated through mannequin-based video-clips. RESULTS: Pre- and post-test scores as well as objective structured clinical examination scores were analyzed using Student's t-test and the Likert scale was used for feedback assessment. It was found that the mean score out of the total score of 20 was 8.47 ± 4.2 in the pre-test, while in the post-test it was 17.4 ± 1.8 (P value < 0.001). The participants also felt self-reliant in executing the roles of airway assistant (63.3%) and drug assistant (74.3%). Fear of self-infection with COVID-19 was also high, as 66% of participants feared working with the patient's airway. CONCLUSION: Amidst this COVID-19 emergency, when the health care systems are being persistently challenged, training of nursing staff in the safe conduct of airway management can ensure delivery of life-saving treatment.

A Case Report of DVT following the Johnson and Johnson Vaccine against the Novel SARS-CoV-2.

Deep vein thrombosis (DVT) is the formation of a blood clot typically in the deep veins of the extremities. The risk factors for venous thrombosis are primarily related to hypercoagulability, which can be genetic, acquired, or due to immobilization and venous stasis. The Johnson and Johnson (J&J) vaccine developed against the novel SARS-CoV-2 has been linked to more specific cases of thrombosis, associated with low platelet levels similar to that seen in heparin-induced thrombocytopenia. In this case report, we present a female who developed a DVT four days after receiving the J&J vaccine. We propose that the administration of this vaccine may further increase the risk of developing DVTs in patients with previous risk factors, and we hope to use this case to support screening all patients for previous risk factors for thrombosis before administration of the J&J vaccine.

Mucormycosis in COVID Diabetic Patients: A Horrifying Triad!

Infectious diseases with the coronavirus disease-2019 (COVID-19) can be linked to various microbial and fungal coinfections. Mucormycosis is an invasive opportunistic infection that enters as inhalation of fungal spores through the nose or paranasal sinuses in diabetic and immunocompromised patients. We present our experience of managing seven cases of recent COVID-19 infection with uncontrolled diabetes who developed rhino-orbital mucormycosis. All patients were diagnosed by clinical examination and imaging and managed by emergency surgical debridement and liposomal amphotericin-B. A lethal triad of impaired immunity due to COVID-19 infection, state of hyperglycemia, increased use of steroids, or rampant broad-spectrum antimicrobials works as fertile soil and may assist in the growth or alleviation of a fungal infection. Healthcare professionals must be aware of the potential of secondary invasive fungal infections in diabetic patients with moderate to severe category of COVID-19 infectious disease, especially on steroid therapy. HOW TO CITE THIS ARTICLE: Panwar P, Gupta A, Kumar A, Gupta B, Navriya SC. Mucormycosis in COVID Diabetic Patients: A Horrifying Triad! Indian J Crit Care Med 2021;25(11):1314-1317.

Arterial Blood Gas as a Predictor of Mortality in COVID Pneumonia Patients Initiated on Noninvasive Mechanical Ventilation: A Retrospective Analysis.

Background: The alveolar-arterial oxygen (A-a) gradient measures the difference between the oxygen concentration in alveoli and the arterial system, which has considerable clinical utility. Materials and methods: It was a retrospective, observational cohort study involving the analysis of patients diagnosed with acute COVID pneumonia and required noninvasive mechanical ventilation (NIV) over a period of 3 months. The primary objective was to investigate the utility of the A-a gradient (pre-NIV) as a predictor of 28-day mortality in COVID pneumonia. The secondary objective included the utility of other arterial blood gas (ABG) parameters (pre-NIV) as a predictor of 28-day mortality. The outcome was also compared between survivors and nonsurvivors. The outcome variables were analyzed by receiver-operating characteristic (ROC) curve, Youden index, and regression analysis. Results: The optimal criterion for A-a gradient to predict 28-day mortality was calculated as ≤430.43 at a Youden index of 0.5029, with the highest area under the curve (AUC) of 0.755 (p <0.0001). On regression analysis, the odds ratio for the A-a gradient was 0.99. A significant difference was observed in ABG predictors, including PaO2, PaCO2, A-a gradient, AO2, and arterial-alveolar (a-A) (%) among nonsurvivors vs survivors (p-value <0.001). The vasopressor requirement, need for renal replacement therapy, total parenteral requirement, and blood transfusion were higher among nonsurvivors; however, a significant difference was achieved with the vasopressor need (p <0.001). Conclusion: This study demonstrated that the A-a gradient is a significant predictor of mortality in patients initiated on NIV for worsening respiratory distress in COVID pneumonia. All other ABG parameters also showed a significant AUC for predicting 28-day mortality, although with variable sensitivity and specificity. Key messages: COVID-19 pneumonia shows an initial presentation with type 1 respiratory failure with increased A-a gradient, while a subsequent impending type 2 respiratory failure requires invasive ventilation. A significant difference was observed in ABG predictors, including PaO2, PaCO2, A-a gradient, AO2, and a-A (%) among nonsurvivors vs survivors. (p-value <0.001). The vasopressor requirement, need for renal replacement therapy, total parenteral requirement, and blood transfusion need were higher among nonsurvivors than survivors; however, a significant difference was achieved with the vasopressor need (p <0.001). How to cite this article: Gupta B, Jain G, Chandrakar S, Gupta N, Agarwal A. Arterial Blood Gas as a Predictor of Mortality in COVID Pneumonia Patients Initiated on Noninvasive Mechanical Ventilation: A Retrospective Analysis. Indian J Crit Care Med 2021;25(8):866-871.

Effect of Covid-19 outbreak on professional approach of Dental practitioners during lockdown and unlock phases in North India – A crosssectional Survey

Background: December 2019, 27 cases of pneumonia of unknown cause were reported in Wuhan City, Hubei Province of China. In March 2020, the WHO declared "Covid-19" as a pandemic and Public Health Emergency of International concern. Dental professionals remain at high risk of contracting Covid-19 because of proximity to the patients while providing treatment. Aim: To evaluate awareness and knowledge about Covid-19 among dental practitioner. Also, to assess their fear and anxiety lockdown and Unlock phase. Method: The survey was created using the free-access Google Forms application and the link to the online survey was sent through a WhatsApp, E-mail, & Facebook to dentists in northern states and union territories of India. Data collection was done during lockdown and unlock phases and latter was analysed statistically. Results: During lockdown phase, it was found that fear of exposing himself (76%) and fear of exposing their family members (93.8%) was more. As Unlock is in progress only 57.8% of dentist opened their clinic. Dental practitioners are well aware of the situation now (95.3%). Despite of all measures to stop cross contamination of infection using Personal Protective Equipment's, use disinfectants, encouraging hand hygiene protocol, infrastructural changes in clinical setup and also strictly following the guidelines from competent authority, 82.5% of respondent are still worried about going back to work. May be because of this reason, 89.6% of the dentists recommended that the patients should be treated at dedicated Covid-19 dental hospitals/clinics. As of now unlock phase has been in progress, condition is getting worse, number of deaths are increasing with each passing day, in fear of their family getting infected, is the biggest reason of their anxiety, but still they have accepted the current situation and continue to live with this. Conclusion: The Covid-19 outbreak has revealed numerous shortcomings in the dental care system. Due to the lack of preparedness, the dental sector had suffered a lot. Dentists should learn from the experience which they acquired in current situation, and should redefine their practices to the new normal & also prepare themselves for any such situation in future.

Tough times and Miles to go before we sleep- Corona warriors.

The world has changed due to COVID-19 pandemic. Global spread of COVID-19 has overwhelmed all health systems and has incurred widespread social and economic disruption. The authorities are struggling to ramp up the healthcare systems to overcome it. Anaesthesiologists are facing long duty hours, have fear of bringing disease home to their families, being companion to critically ill patients on long term life support, being on front line of this pandemic crisis, may take toll on all aspects of health of corona warriors- physical, mental, social as well as the emotional.At this juncture, we must pause and ask this question to ourselves, "Buried under stress, are we okay?"

Re-emergence of TIVA in COVID times.

Total intravenous anaesthesia (TIVA) is a technique of general anaesthesia (GA) given via intravenous route exclusively. In perspective of COVID-19, TIVA is far more advantageous than inhalational anaesthesia. It avoids the deleterious effects of immunosuppression and lacks any respiratory irritation, thus providing an edge in the current situation. Many peripheral surgeries can be done with the patient breathing spontaneously without any airway device, thus avoiding airway instrumentation leading to droplet and aerosol generation. Intravenous agents can be utilized to provide sedation during regional anaesthesia (RA), which can easily be escalated to contain pain due to sparing of blocks or receding neuraxial anaesthesia. The present narrative review focuses on the merits of adopting TIVA technique during this pandemic so as to decrease the risk and morbidity arising from anaesthetizing COVID-19 patients.