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A 24-year-old primigravida underwent cesarean section for breech presentation under uncomplicated spinal anesthesia performed with a 27-gauge Whitacre needle. On the second postpartum day, she complained of a severe, diffuse headache. On the third postpartum day, she suffered a grand mal seizure. The obstetrician believes the headache is a spinal headache, and the anesthesiologist is consulted.
Postpartum headache has been defined as any headache occurring during the first 6 weeks after delivery. Such headaches can be caused by a preexisting condition, may be a manifestation of an intrapartum event, or can be due to an unrelated disorder arising coincidentally in the postpartum period. There is a natural inclination, particularly on the part of patients and obstetricians, to blame any postpartum headache on a neuraxial anesthetic, but not all postpartum headaches are post–dural puncture headaches, even when a large-gauge dural puncture is known to have occurred. This chapter discusses the most common causes of headache in the postpartum period, as well as some less common conditions whose misdiagnosis can lead to a potentially catastrophic outcome.
Although the incidence of a particular type of headache may be different in women who have recently delivered, any headache that is seen in the general population can occur in the postpartum period. In 2013 the International Headache Society published a beta version of the third edition of its diagnostic and classification criteria. A complete discussion of these criteria is beyond the scope of this review, but the division of headaches into primary and secondary provides a useful framework for discussion ( Box 174.1 ).
Migraine (with or without aura)
Tension-type headache
Headache attributed to cranial vascular disorders
Intracranial hemorrhage
Cerebral venous and sinus thrombosis
Headache attributed to nonvascular intracranial disorders
Tumor
Idiopathic intracranial hypertension
Pneumocephalus
Headache attributed to a substance or its withdrawal
Headache attributed to disorder of homeostasis
Preeclampsia
Metabolic disorders
Headache from infectious causes
Meningitis
Sinusitis
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