We report a case series of seven mechanically ventilated patients with acute respiratory distress syndrome (ARDS) caused by coronavirus disease (COVID-19) who received early treatment with high-dose, short-term systemic corticosteroids to prevent cytokine overproduction. Of the seven patients, four were male and median age was 69 years. They were intubated within seven days after admission when their respiratory status rapidly worsened. At that time, we administered 1000 or 500 mg/day for three days of methylprednisolone intravenously, followed by 1 mg/kg and tapered off. The median duration for the total administration of corticosteroids was 13 days. This high-dose, short-term corticosteroid therapy enabled extubation of the patients within seven days. Many questions on the clinical management of COVID-19 remain unanswered, and data on corticosteroid therapy as a choice of treatment are mixed. We present the clinical course of our cases, review the previous evidence, and discuss management. Case SeriesAt St. Luke's International Hospital in Japan in March 2020, seven were admitted to the ICU with COVID-19-related ARDS when their oxygenation had been deteriorating rapidly. The diagnosis of COVID-19 is made by detection of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) RNA by real-time polymerase chain reaction. High-flow oxygen therapy such as

Background In patients with coronavirus disease (COVID-19) pneumonia, corticosteroids reduce progression to respiratory failure and death. Some patients, however, remain unresponsive to this treatment, or experience a rebound after termination. Methods This retrospective cohort study included COVID-19 patients treated with systemic corticosteroids in a Japanese hospital between June 1, 2020, and January 17, 2021. Patients were categorized into three groups: success, rebound, and refractory, and clinical characteristics and outcomes were compared. Results A total of 319 COVID-19 patients were admitted to our hospital and 113 patients met inclusion criteria. The success group had 83 patients (73.5%), the rebound group had nine patients (8.0%), and the refractory group had 21 patients (18.6%). Compared with the success group, the rebound group received corticosteroids earlier, for a shorter duration, and stopped them sooner. The median time from symptom onset to rebound was 12 days. There was no rebound after 20 days. Compared with the success group, the hazard ratio for the number of days from corticosteroid onset to an improvement of two points on a seven-point ordinal scale was 0.29 (95% confidence interval [CI], 0.14–0.60, P < .001) for the rebound group versus 0.13 (95% CI, 0.07–0.25, P < .001) for the refractory group. Conclusions COVID-19 patients treated with corticosteroids were classified into three response groups: success, rebound, and refractory, between which recovery time and prognosis differed. It was found that corticosteroid administration may prevent rebound phenomena if administered at least two weeks from symptom onset.

Background: Corticosteroids have been reported to reduce the mortality rates in patients with coronavirus disease 2019 (COVID-19). Additionally, the role of high-dose methylprednisolone pulse therapy in reducing mortality in critically ill patients has also been documented. The purpose of this study is to identify patients with COVID-19 who are suitable for methylprednisolone pulse therapy.Methods: This was a retrospective study that included patients with COVID-19 receiving methylprednisolone pulse therapy (>250 mg/day for 3 days) with subsequent tapering doses at our hospital between June 2020 and January 2021. We examined the differences in background clinical factors between the surviving group and the deceased group.Results: Of 156 patients that received steroid therapy, 17 received methylprednisolone pulse therapy. Ten patients recovered (surviving group) and seven patients died (deceased group). The median age of the surviving and deceased groups was 64.5 years (range, 57-85) and 79 years (73-90), respectively, with a significant difference (p=0.004). Five of the deceased patients (71%) had developed serious complications associated with the cause of death, including pneumothorax, pneumomediastinum, COVID-19-associated pulmonary aspergillosis, cytomegalovirus infection, and bacteremia. On the other hand, of the 10 survivors, only one elderly person had cytomegalovirus infection and the rest recovered without complications.Conclusion: Administration of methylprednisolone pulse therapy with subsequent tapering may be an effective treatment in patients with COVID-19 up to the age of early 70s; however, severe complications may be seen in elderly patients.

Corticosteroids use in coronavirus disease 2019 (COVID-19) is controversial, especially in mild to severe patients who do not require invasive/noninvasive ventilation. Moreover, many factors remain unclear regarding the appropriate use of corticosteroids for COVID-19. In this context, this multicenter, retrospective, propensity score–matched study was launched to evaluate the efficacy of systemic corticosteroid administration for hospitalized patients with COVID-19 ranging in the degree of severity from mild to critically-ill disease. This multicenter, retrospective study enrolled consecutive hospitalized COVID-19 patients diagnosed January–April 2020 across 30 institutions in Japan. Clinical outcomes were compared for COVID-19 patients who received or did not receive corticosteroids, after adjusting for propensity scores. The primary endpoint was the odds ratio (OR) for improvement on a 7-point ordinal score on Day 15. Of 1092 COVID-19 patients analyzed, 118 patients were assigned to either the corticosteroid and non-corticosteroid group, after propensity score matching. At baseline, most patients did not require invasive/noninvasive ventilation (85.6% corticosteroid group vs. 89.8% non-corticosteroid group). The odds of improvement in a 7-point ordinal score on Day 15 was significantly lower for the corticosteroid versus non-corticosteroid group (OR, 0.611; 95% confidence interval [CI], 0.388–0.962; p = 0.034). The time to improvement in radiological findings was significantly shorter in the corticosteroid versus non-corticosteroid group (hazard ratio [HR], 1.758; 95% CI, 1.323–2.337; p < 0.001), regardless of baseline clinical status. The duration of invasive mechanical ventilation was shorter in corticosteroid versus non-corticosteroid group (HR, 1.466; 95% CI, 0.841–2.554; p = 0.177). Of the 106 patients who received methylprednisolone, the duration of invasive mechanical ventilation was significantly shorter in the pulse/semi-pulse versus standard dose group (HR, 2.831; 95% CI, 1.347–5.950; p = 0.006). In conclusion, corticosteroids for hospitalized patients with COVID-19 did not improve clinical status on Day 15, but reduced the time to improvement in radiological findings for all patients regardless of disease severity and also reduced the duration of invasive mechanical ventilation in patients who required intubation.Trial registration: This study was registered in the University hospital Medical Information Network Clinical Trials Registry on April 21, 2020 (ID: UMIN000040211).

Background Despite being minimally invasive, bronchoscopy does not always result in pathological specimens being obtained. Therefore, we investigated whether virtual bronchoscopic navigation (VBN) findings were associated with the rate of diagnosis of primary lung cancer by bronchoscopy in patients with peripheral lung lesions. Methods This study included patients with suspected malignant peripheral lung lesions who underwent bronchoscopy at St. Luke’s International Hospital between October 2013 and March 2020. Patients diagnosed with primary lung cancer were grouped according to whether their pathology could be diagnosed by bronchoscopy, and their clinical factors were compared. In addition, the distance between the edge of the lesion and the nearest branch (“distance by VBN”) was calculated. The distance by VBN and various clinical factors were compared with the diagnostic rates of primary lung cancer. Results The study included 523 patients with 578 lesions. After excluding 55 patients who underwent multiple bronchoscopies, 381 patients were diagnosed with primary lung cancer. The diagnostic rate by bronchoscopy was 71.1% (271/381). Multivariate analysis revealed that the lesion diameter (odds ratio [OR] 1.107), distance by VBN (OR 0.94) and lesion structure (solid lesion or ground-glass nodule; OR 2.988) influenced the risk of a lung cancer diagnosis. The area under the receiver operating characteristic curve for diagnosis based on lesion diameter and distance by VBN was 0.810. Conclusion The distance by VBN and lesion diameter were predictive of the diagnostic rates of primary lung cancer by bronchoscopy in patients with peripheral lung lesions.