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Objectives: We investigated different computed tomography (CT) features between Omicron-variant and original-strain SARS-CoV‑2 pneumonia to facilitate the clinical management., Materials and Methods: Medical records were retrospectively reviewed to select patients with original-strain SARS-CoV‑2 pneumonia from February 22 to April 22, 2020, or Omicron-variant SARS-CoV‑2 pneumonia from March 26 to May 31, 2022. Data on the demographics, comorbidities, symptoms, clinical types, and CT features were compared between the two groups., Results: There were 62 and 78 patients with original-strain or Omicron-variant SARS-CoV‑2 pneumonia, respectively. There were no differences between the two groups in terms of age, sex, clinical types, symptoms, and comorbidities. The main CT features differed between the two groups (p = 0.003). There were 37 (59.7%) and 20 (25.6%) patients with ground-glass opacities (GGO) in the original-strain and Omicron-variant pneumonia, respectively. A consolidation pattern was more frequently observed in the Omicron-variant than original-strain pneumonia (62.8% vs. 24.2%). There was no difference in crazy-paving pattern between the original-strain and Omicron-variant pneumonia (16.1% vs. 11.6%). Pleural effusion was observed more often in Omicron-variant pneumonia, while subpleural lesions were more common in the original-strain pneumonia. The CT score in the Omicron-variant group was higher than that in the original-strain group for critical-type (17.00, 16.00-18.00 vs. 16.00, 14.00-17.00, p = 0.031) and for severe-type (13.00, 12.00-14.00 vs 12.00, 10.75-13.00, p = 0.027) pneumonia., Conclusion: The main CT finding of the Omicron-variant SARS-CoV‑2 pneumonia included consolidations and pleural effusion. By contrast, CT findings of original-strain SARS-CoV‑2 pneumonia showed frequent GGO and subpleural lesions, but without pleural effusion. The CT scores were also higher in the critical and severe types of Omicron-variant than original-strain pneumonia., (© 2023. The Author(s), under exclusive licence to Springer Medizin Verlag GmbH, ein Teil von Springer Nature.)

Objectives: To review the characteristics of and to identify the reasons for severe maternal admissions to the ICU., Design: This was an analytical, observational, open, and retrospective study., Setting: In our ICU., Patients: A total of 487 severe maternal cases were reviewed during the 8-year study period of January 2009 to December 2016., Intervention: None., Measurements and Main Results: A total of 487 severe maternal cases (12.6%) among the 3,867 patients admitted to ICU were reviewed. Of these, 361 patients were admitted for obstetric reasons, mainly pregnancy-induced hypertension (58.7%) and postpartum hemorrhage (36.8%). The remaining 126 patients were admitted for nonobstetric reasons, including cardiac-related disease (31.0%), immune-related disease (24.6%), and sepsis (20.6%). A total of 249 patients experienced combined comorbidities: the most common was a scarred uterus (100 patients; 40.2%), followed by endocrine-related disease (25.3%), immune-related disease (21.3%), and cardiac-related disease (18.1%). Central venous insertion (90.6%) was the most common intervention, followed by arterial catheter insertion (33.7%), mechanical ventilation (11.7%), blood purification (5.7%), and invasive hemodynamic monitoring (3.7%). Nine patients died during the study period, of which the death of four could have been avoided., Conclusions: The number of severe maternal cases has increased annually in our ICU. Although obstetric causes remained the most common reason for admission, the nonobstetric causes and basic complications were too complex, dangerous, and beyond the reach of the obstetrician with regard to monitoring and treatment. We call for a multidisciplinary team mainly composed of ICU staff to improve severe maternal outcomes.