New-onset severe symptoms
Because severe hypertension or PE with severe features may develop for the first time during the postpartum period, postpartum women – and the medical providers and personnel who respond to patient phone calls – should be well educated about the signs and symptoms of severe hypertension or PE. These include new-onset severe headaches that do not respond to maximum doses of analgesics, persistent severe visual changes, and new-onset epigastric pain with nausea and vomiting, dyspnea, orthopnea, shortness of breath, or palpitations. These women are at increased risk for eclampsia, pulmonary edema, stroke, and thromboembolism; these women require careful evaluation and potential hospitalization.
Severe new onset of persistent headaches and/or visual symptoms. Women with hypertension in association with new-onset persistent headaches and/or visual changes should be suspected to have severe PE. Patients who have hypertension with seizure should be initially treated as having eclampsia and should receive brain imaging to rule out other etiologies. Magnesium sulfate therapy must be initiated promptly for seizure prophylaxis and/or treatment. In addition, intravenous antihypertensive medications are recommended to lower BP to the desired goal while considering an alternative cause for the cerebral symptoms.
Women presenting with hypertension in association with refractory and/or thunderclap headaches, visual disturbances, or neurologic deficits should be evaluated for possible cerebrovascular complications such as reversible cerebral vasoconstriction syndrome (RCVS), cerebral venous thrombosis, or stroke. These women will require selective diagnostic neuroimaging and consultation with neurology and/or neurosurgery. Such an evaluation may include CT scan for hemorrhage, MRI for detection of vasogenic edema and/or ischemia or infarction, cerebral angiography for diagnosis of RCVS, and cerebral venography for detection of cerebral venous thrombosis. Subsequent treatment will depend on the etiology.
Severe new-onset epigastric/right upper quadrant pain with nausea and vomiting. Women with persistent nausea, vomiting, or epigastric pain should be evaluated for HELLP syndrome because up to 30% who develop the syndrome do so post partum. The time of onset of clinical and laboratory findings ranges from 1 to 7 days post partum. Women are managed as they are before delivery, with the use of magnesium sulfate, antihypertensives, and close monitoring of vital signs and laboratory values.
In general, patients with HELLP syndrome will demonstrate an improvement in clinical and laboratory findings within 72 hours after treatment. If there is either no improvement or a deterioration in these findings, then it is important to consult with appropriate specialists for evaluation and subsequent management of possible rare syndromes such as acute fatty liver, thrombotic thrombocytopenic purpura, hemolytic uremic syndrome, or exacerbation of lupus.
Severe new-onset shortness of breath, dyspnea, orthopnea, or palpitations. Women with these symptoms in the postpartum period should be evaluated for possible pulmonary edema, pulmonary embolism, or peripartum cardiomyopathy. Women with postpartum hypertension are at risk for pulmonary edema with onset at 3-6 days after delivery. Diagnosis is confirmed by physical exam (tachycardia, tachypnea), presence of rales on lung exam, pulse oximetry (oxygen saturation less than 93%), and chest x-ray, and echocardiography to exclude other etiologies. Treatment of pulmonary edema includes oxygen supplementation, 40 mg IV furosemide, control of severe hypertension, fluid restriction, and supportive care.
Dr. Baha M. Sibai
Pulmonary embolism usually is confirmed by chest CT angiography and managed with therapeutic anticoagulation. Peripartum cardiomyopathy is diagnosed by echocardiography revealing left ventricular systolic dysfunction (ejection fraction less than 45%, dilated left ventricle). Treatment includes IV furosemide, use of a vasodilator, and ACE inhibitor therapy.