The International Network of Obstetric Survey System.

OBJECTIVE: To informed about international surveillance network severe maternal morbidity and mortality - INOSS. DESIGN: Literature review. SETTINGS: 1st Department of Gynaecology and Obstetrics Faculty of Medicine, Comenius University and University Hospital, Bratislava, Slovak Republic. METHODS: Literate review of articles published till august 2019. RESULTS: The International Network of Obstetric Survey Systems (INOSS) is an international network that connects countries with the same or similar system of surveillance of acute severe maternal morbidity and mortality. The INOSS was established in year 2010 by twelve countries. Nowadays 19 countries are involved in the INOSS. The cooperation between member countries is focused on the acquisition of relevant data about rare severe acute maternal morbidities. INOSS in 2017 year unified definitions of 8 severe acute maternal morbidities according Delphi method: eclampsia, amniotic fluid embolism, peripartum hysterectomy, severe primary postpartum haemorrhage, uterine rupture, abnormally invasive placenta, spontaneous hemoperitoneum in pregnancy, and cardiac arrest in pregnancy. CONCLUSION: The international cooperation allows the acquisition of relevant epidemiologic data and the optimalization of the treatment according the evidence-based medicine.