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Background: According to latest ACOG guidelines, postpartum haemorrhage is defined as cumulative blood loss equal to 1000 ml or more along with signs and symptoms of hypovolemia within 24 hours after delivery regardless of route of delivery. Arterial blood gas (ABG) analysis is an essential part of diagnosing and managing the oxygenation status and acid base balance of high risk patients. This study intends to have a detailed assessment of ABG and acid base imbalance in high risk antenatal patients who may land up into postpartum haemorrhage.
Objective: To study the correlation between arterial blood gas analysis and occurrence and severity of postpartum haemorrhage (PPH).
Materials & Methods: The prospective study was conducted at Department of Obstetrics and Gynaecology, GSVM Medical College, Kanpur, from January 2017 to August 2018. A total of 100 patients were included in the study after satisfying the inclusion and exclusion criteria. In the study, arterial blood gas analysis was performed for all recruited subjects.
Results: Out of 100 patients, total 14 patients landed up into PPH. Out of these 14, 10 with abnormal ABG developed PPH.
Conclusion: Occurrence of PPH is more in patients with abnormal ABG. Abnormal pH, abnormal base deficit and abnormal pCO2 are the determinant parameters of ABG which can predict the occurrence of PPH. Associated risk factors i.e. severe anaemia, pregnancy induced hypertension, multiple pregnancies and sepsis with abnormal ABG parameters further increases the risk of occurrence and severity of PPH.
Keywords: Arterial Blood Gas; Base deficit; Haemorrhage