Description :

Preterm birth ptb is defined as delivery before 37 weeks of gestation chapter one focuses on important aspects regarding potential risk factors potential complications and clinical analyses of ptb. Lora gross editor series pregnancy and infants medical psychological and social issues bisac med070000. Objective to determine the clinical manifestations risk factors and maternal and perinatal outcomes in pregnant and recently pregnant women with suspected or confirmed coronavirus disease 2019 covid 19 design living systematic review and meta analysis data sources medline embase cochrane database who covid 19 database china national knowledge infrastructure cnki and wanfang . One of the leading causes of spontaneous preterm delivery is the presence of intra amniotic inflammation with a prevalence of approximately 30 in women with preterm labor and intact membranes and up to 60 in women with preterm prelabor rupture of membranes 52 56 the earlier the symptoms and complications occur in the pregnancy the higher