A Clinical Study on Initial Experience of COVID-19 ARDS in Obstetric Patients at a Tertiary Care Centre in India

Table 1

S no	Studies	Study population	Type of study	Study centre	Observations
1.	Chen et al.	118 pregnant women	Epidemiological review	China	(i) 8%—severe disease; (ii) 0.008%—required NIV; (iii) Mortality—nil
2.	San-Juan et al.	52 pregnant women with COVID-19	Single-centred cohort study	Spain	(i) Pneumonia—61.5% (>50% required supplemental oxygen); (ii) Most common radiological findings were bilateral ground-glass opacities (46.8%) followed by bilateral or unilateral alveolar infiltrates (40.6%); (iii) ARDS—25%; (iv) IMV—6.2%
3.	Knight et al.	427 pregnant women with COVID-19	Prospective population-based cohort study	All obstetric unit in UK	(i) Needed critical care—10%; (ii) ECMO—1%; (iii) Pneumonia on imaging—24%
4.	Kayem et al.	617 pregnant women with COVID-19	Case series	France	(i) Typical chest CT features of pneumonia—8.3%; (ii) Nasal oxygen therapy—13.5%; (iii) NIV—1.6%; (iv) Invasive mechanical ventilation—4.7%; (v) ECMO—1%; (vi) Association with hypertensive disorders—3.4%
5.	Present case series	4 pregnant women with COVID-19-related ARDS	Case series	India	(i) Typical chest radiograph features of pneumonia—25%; (ii) NIV—25%; (iii) NRBM—25%; (iv) Invasive ventilation—50%; (v) Association with hypertensive disorders—50%