pneumonia | The Journal of Critical Care Medicine

Personalisation of Therapies in COVID-19 Associated Acute Respiratory Distress Syndrome, Using Electrical Impedance Tomography

Atsuko Shono¹, Toru Kotani¹, Inéz Frerichs²

1 Department of Intensive Care Medicine, Showa University School of Medicine, Shinagawa, Tokyo Japan
2 Department of Anesthesiology and Intensive Care Medicine, University Medical Center, Schleswig-Holstein, Campus Kiel, Germany

DOI: 10.2478/jccm-2020-0045

Introduction: Each patient suffering from severe coronavirus COVID-19-associated acute respiratory distress syndrome (ARDS), requiring mechanical ventilation, shows different lung mechanics and disease evolution. Therefore, lung protective strategies should be personalised for the individual patient.
Case presentation: A 64-year-old male patient was intubated ten days after the symptoms of COVID-19 infection presented. He was placed in the prone position for sixteen hours, resulting in a marked improvement in oxygenation. However, after being returned to the supine position, his SpO2 rapidly dropped from 98% to 91%, and electrical impedance tomography showed less ventilation at the dorsal region and a ventral shift of ventilation distribution. An incremental and decremental PEEP trial under electrical impedance tomography monitoring was carried out, confirming that the dependent lung regions were recruited with increased pressures and homogenous ventilation distribution could be provided with 14 cmH2O of PEEP. The optimal settings were reassessed next day after returning from the second session of the prone position. After four prone position-sessions in five days, oxygenation was stabilised and eventually the patient was discharged.
Conclusions: Patients with COVID-19 associated ARDS require individualised ventilation support depending on the stage of their disease. Daily PEEP trial monitored by electrical impedance tomography can provide important information to tailor the respiratory therapies.

A Fatal Case of Community Acquired Cupriavidus Pauculus Pneumonia

Emoke Almasy¹, Janos Szederjesi^1*, Paul Rad1, Anca Georgescu²

1 Discipline of Intensive Care, University of Medicine and Pharmacy Tîrgu Mureş, Romania
2 Discipline of Infectious Diseases, University of Medicine and Pharmacy Tîrgu Mureş, Romania

DOI: 10.1515/jccm-2016-0027

Introduction: Cupriavidus pauculus is a rarely isolated non-fermentative, aerobic bacillus, which occasionally causes severe human infections, especially in immunocompromised patients. Strains have been isolated from various clinical and environmental sources.
Case presentation: A 67-year-old man was admitted to the Intensive Care Unit with acute respiratory failure. The patient was diagnosed with bilateral pneumonia, pulmonary sepsis and underwent invasive mechanical ventilation. Examination revealed diminished bilateral vesicular breath sounds, fever, intense yellow tracheal secretions, a respiratory rate of 24/minute, a heart rate of 123/minute, and blood pressure of 75/55 mmHg. Vasoactive treatment was initiated. Investigations revealed elevated lactate and C-reactive protein levels. A chest X-ray showed bilateral infiltration. Parenteral ciprofloxacin and ceftriaxone were administered. Tracheal aspirate culture and blood culture showed bacterial growth of Cupriavidus pauculus. Colistin was added to the treatment. There was a poor clinical response despite repeated blood culture showing negative results. The diagnosis of multiple organ dysfunction syndrome (MODS) caused by C. pauculus was made. The patient died eleven days after admission.
Conclusions: Clinical improvement cannot always be expected in spite of targeted antibiotic therapy. This pathogen should be considered responsible for infections that usually develop in immunocompromised patients.