Research Article

Exploring the Concept of Degrees of Maternal Morbidity as a Tool for Surveillance of Maternal Health in Latin American and Caribbean Settings

Box 1

The WHO criteria for potentially life-threatening conditions and maternal near miss (modified from [1]).
A. Criteria for potentially life-threatening conditions
Haemorrhagic disordersHypertensive disorders
Abruptio placentae Severe preeclampsia
Accreta/increta/percreta placentaEclampsia
Ectopic pregnancy Severe hypertension
Postpartum Haemorrhage Hypertensive encephalopathy
Ruptured uterus HELLP syndrome
Other systemic disordersSevere Management Indicators
Endometritis Blood transfusion
Pulmonary oedema Central venous access
Respiratory failure Hysterectomy
SeizuresICU admission
Sepsis Prolonged hospital stay (>7 postpartum days)
Shock Non-anaesthetic Intubation
Thrombocytopenia <100.000Return to operating room
Thyroid crisis Surgical intervention
B. Criteria for maternal near miss criteria
Clinical criteria
Acute cyanosis Loss of consciousness lasting ≥12 hours
Gasping Loss of consciousness AND absence of pulse/heart beat
Respiratory rate > 40 or <6/min Stroke
Shock Uncontrollable fit/total paralysis
Oliguria non-responsive to fluids or diuretics Jaundice in the presence of pre-eclampsia
Clotting failure
Laboratory-based criteria
Oxygen saturation < 90% for ≥60 minutes pH < 7.1
PaO2/FiO2 < 200 mmHg Lactate > 5
Creatinine ≥ 300 mmol/l or ≥ 3.5 mg/dl Acute thrombocytopenia (<50,000 platelets)
Bilirubin > 100 mmol/l or >6.0 mg/dl Loss of consciousness AND the presence of glucose and ketoacidosis in urine
Management-based criteria
Use of continuous vasoactive drugs Intubation and ventilation for ≥60 minutes not related to anaesthesia
Hysterectomy following infection/haemorrhage Dialysis for acute renal failure
Transfusion of ≥5 units red cell transfusionCardio-pulmonary resuscitation (CPR)