Case 1
A 62-year-old, diabetic, hypertensive patient was admitted to the ward after testing positive on the 21st March. He was on Nifedipine, Metformin, Azithromycin, hydroxychloroquine, Tamiflu, Ceftriaxone and was dyspneic with SpO2 76% on room air leading to admission to the High Dependency Unit on the 22nd March. He had bilateral pneumonia on chest X-ray, very short of breath when conversing but able to complete sentences. He was restricted to strict bed rest but his oxygen requirements did not wean until the 30th March when he was started on 20mg prednisolone daily. His oxygen requirement decreased over the next 48 hrs. as he was weaned to nasal cannula 2 L/min achieving SpO2 98% and less breathlessness. He was allowed to ambulate and was weaned to room air after 4 days and the prednisolone was rapidly tapered as his blood sugar control was difficult. Lactate dehydrogenase on admission to HDU was 1536 U/l (100-190U/l).
Case 2
A 65-year -old, diabetic, hypertensive, obese, Covid positive patient admitted to the ward on 27th March. His therapy at the time was hydroxychloroquine, azithromycin, Tamiflu and Ceftriaxone. He was admitted to the High Dependency unit on the 1st April after needing escalating oxygen therapy and worsening shortness of breath (60% venti-component with SpO2 92%). He needed a sliding scale of insulin to control his very labile blood sugar and prednisolone 30mg was initiates after 5 days of shortness of breath and hypoxia. His oxygen requirement markedly reduced over 3 days and he was able to maintain SpO2 95% on 1l/min nasal cannula. The prednisolone was rapidly weaned over another 4 days as his blood sugar was even more difficult to control, he was then allowed to full ambulate. Lactate dehydrogenase on admission to HDU 1345 U/l (100-190U/l).
Case 3
A 41-year-old, asthmatic on inhalers admitted to HDU on 28th March with shortness of breath and supplementary oxygen venti-component 60% to achieve SpO2 95% (85% on room air). The patient had shortness of breath from the 26th March and worsening wheeze; he was taking Salbutamol, Symbicort, Azithromycin, Tamiflu, Co-amoxiclav and Hydroxychloroquine. On 29/3, his chest was more productive (yellow sputum), and his antibiotics were changed to Ceftriaxone and his SpO2 maintained at 88% on a 60% venti-component.
He remained oxygen dependent until the 1st April when he was started on oral prednisolone 30 mg daily and continued his salbutamol and ipratropium bromide, his oxygen was weaned to room air on the 3rd April when he maintained oxygen saturation of 98%. He continued to have a mild wheeze which subsided on the 5th April and the prednisolone was weaned over the next 2 days as he remained on room air. He was discharged on the 6th April to the ward, asymptomatic and well. Lactate dehydrogenase on admission to HDU 1358 U/l (100-190U/l).
Case 4
A 78-year-old hypertensive patient was admitted to the ward on the 4th April after testing positive for Covid the day before. He developed progressive delirium and hypoxia leading to admission to the High Dependency Unit, his SpO2 on admission was 91% on a 60% venti-component. He was very agitated and confused, 15 mg prednisolone was commenced on the 6th April as his oxygen requirements remained high and strict bed rest was ordered. His treatment on admission to the HDU included azithromycin, Tamiflu, Ceftriaxone, Omeprazole. Saturations improved over the next 4 days and he was placed on nasal specs and allowed to ambulate. The prednisolone was weaned over the next 3 days and the patient was discharged to the ward. Lactate dehydrogenase 1246 U/l (100-190 U/l).
DIAGNOSIS
Four (4) patients admitted to the High Dependency Unit diagnosed with moderate respiratory failure secondary to PCR positive Covid 19.
THERAPEUTIC INTERVENTION
Prednisolone therapy was initiated after patients needed oxygen therapy to maintain saturations >90%, these patients remained hypoxic for 72hours within the HDU prior to the initiation of prednisolone therapy. The dose varied as we have a high percentage of Diabetes in our population so glycaemic control was difficult. The dose of prednisolone was between 15-30 mg and this treatment continued until the patients were maintaining saturations >92% and relief of dyspnoea.
OUTCOME
There was resolution of dyspnoea and oxygen dependency within 72 hours of initiation of steroid therapy. The dose varied from 15-30 mg and within 48 hours all patients were weaned to nasal cannula and there was a marked improvement in chest tightness and dyspnea. The course of prednisolone therapy varied from three (3) to seven (7) days with patients not needing maintenance steroid therapy during the recovery phase. All patients were subsequently discharged from the institution after having two (2) negative nasopharyngeal swabs. There was no readmission for respiratory support.