Abstract
Objective
To describe clinical, neuroradiological and evolutionary findings in obstetric patients with posterior reversible encephalopathy syndrome (PRES).
Design
Retrospective case series.
Setting
University intensive care unit (ICU).
Patients
Four critically ill patients. Two patients experienced PRES in late postpartum without the classical pre-eclamptic signs. All patients showed impairment of consciousness and epileptic seizures; two of them presented cortical blindness and headache, too. True status epilepticus (SE) occurred in two cases. In all patients MRI showed the typical feature of gray-white matter edema, mainly localized to the temporo-parieto-occipital areas.
Interventions
Normalization of high blood pressure (BP) and treatment of seizures. Two patients with SE and severe impairment of consciousness were treated with an intravenous valproate (ivVPA) bolus followed by continuous infusion.
Measurements and results
In three cases, neurological and MRI abnormalities completely resolved in about a week. Another patient died due to subarachnoid hemorrhage.
Conclusion
Posterior reversible encephalopathy syndrome is a well described clinical and neuroradiological syndrome characterized by headache, altered mental status, cortical blindness and seizures, and a diagnostic MRI picture; usually reversible, PRES can sometimes result in death or in irreversible neurological deficits, thus requiring early diagnosis and prompt treatment. PRES can have various etiologies, but pregnancy and postpartum more frequently lead to this condition. Treatment of seizures deserves special attention since the anti-epileptic drugs currently used in SE management may worsen vigilance as well as autonomic functions. Extensive research is needed to assess the role of ivVPA in this condition.
References
Hinchey J, Chaves C, Appignani B, Breen J, Pao L, Wang A, Pessin M, Lamy C, Mas JLM, Caplan LR (1996) A reversible posterior encephalopathy syndrome. N Engl J Med 334:494–500
Kwon S, Jahoon K, Sangkwon L (2001) Clinical spectrum of reversible posterior leukoencephalopathy syndrome. Pediatr Neurol 24:361–364
Covarrubias DJ, Luetmer PH, Campeau NG (2002) Posterior reversible encephalopathy syndrome: prognostic utility of quantitative diffusion-weighted MR images. Am J Neuroradiol 23:1038–1048
Antunes NL, Small TN, George D, Boulad F, Lis E (1999) Posterior leukoencephalopathy syndrome may not be reversible. Pediatr Neurol 20:241–243
Kupferschmidt H, Bont A, Schnorf H, Landis T, Walter E, Peter J, Krahenbuhl S, Meier PJ (1995) Transient cortical blindness and bioccipital brain lesions in two patients with acute intermittent porphyria. Ann Intern Med 123:598–600
Kastrup O, Maschke M, Wanke I, Diener HC (2002) Posterior reversible encephalopathy syndrome due to severe hypercalcemia. J Neurol 249:1563–1566
Pavlakis SG, Frank Y, Kalina P, Chandra M, Lu D (1997) Occipital-parietal encephalopathy: a new name for an old syndrome. Pediatr Neurol 16:145–148
Casey SO, Sampaio RC, Michel E, Truwit CL (2000) Posterior reversible encephalopathy syndrome: utility of fluid-attenuated inversion recovery MR imaging in the detection of cortical and subcortical lesions. Am J Neuroradiol 21:1199–1206
Schaefer PW, Buonanno FS, Gonzales RG, Schwamm LH (1997) Diffusion-weighted imaging discriminates between cytotoxic and vasogenic edema in a patient with eclampsia. Stroke 28:1082–1085
Keswani SC, Wityk R (2002) Don't throw in the towel! A case of reversible coma. J Neurol Neurosurg Psychiatry 73:83–84
Veltkamp R, Kupsch A, Polasek J, Yousry TA, Pfister HW (2000) Late onset postpartum eclampsia without pre-eclamptic prodomi: clinical and neuroradiological presentation in two patients. J Neurol Neurosurg Psychiatry 69:824–827
Dziewas R, Stogbauer F, Freund M, Ludemann P, Imai T, Holzapfel C, Ringelstein PB (2002) Late onset postpartum eclampsia: a rare and difficult diagnosis. J Neurol 9:1287–1291
Manfredi M, Beltramello A, Bongiovanni LG, Polo A, Pistoia L, Rizzuto N (1997) Eclamptic encephalopathy: imaging and pathogenetic considerations. Acta Neurol Scand 96:277–282
Schwartz RB, Feske SK, Polak JF, DeGirolami U, Iaia A, Beckner KM, Bravo SM, Klufas RA, Chai RY, Repke JT (2000). Preeclampsia-eclampsia: clinical and neuroradiographic correlates and insight into the pathogenesis of hypertensive encephalopathy. Radiology 217:371–376
Thambisetty M, Biousse V, Newman NJ (2003) Hypertensive brainstem encephalopathy: clinical and radiographic features. J Neurol Sci 208:93–99
Sengar AR, Gupta RK, Dhanuka AR, Roy R, Das K (1997) MR imaging, MR angiography and MR spectroscopy of the brain in eclampsia. Am J Neuroradiol 18:1485–1490
Kaplan PW (2002) Neurologic aspects of eclampsia. In: Hainline B, Devinsky O (eds) Neurological complication of pregnancy (2nd edition). Lippincott Williams & Wilkins, Baltimore, pp 41–49
Luiten PG, Douma BR, Van der Zee EA, Nyakas C (1995) Neuroprotection against NMDA induced cell death in rat nucleus basalis by Ca2+ antagonist nimodipine, influence of aging and developmental drug treatment. Neurodegeneration 4:307–314
Harkany T. Dijkstra IM, Oosterink BJ, Horvath KM, Abraham I, Keijser J, Van der Zee EA, Luiten PG (2000) Amyloid precursor protein expression and serotonergic sprouting following excitotoxic lesion of the rat magnocellular nucleus basalis: neuroprotection by Ca(2+) antagonist nimodipine. Neuroscience 101:101–114
The Magpie Trial Collaborative Group (2002) Do women with pre-eclampsia, and their babes, benefit from magnesium sulphate? The Magpie Trial: a randomised placebo-controlled trial. Lancet 359:1877–1890
Ramsay RE, Uthman B, Leppik IE, Pellock JM, Wilder BJ, Morris D, Cloyd JC (1997) The tolerability and safety of valproate sodium injection given as an intravenous infusion. J Epilepsy 10:187–193
Sihna S, Naritoku DK (2000) Intravenous valproate is well tolerated in unstable patients with status epilepticus. Neurology 55:722–724
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Servillo, G., Striano, P., Striano, S. et al. Posterior reversible encephalopathy syndrome (PRES) in critically ill obstetric patients. Intensive Care Med 29, 2323–2326 (2003). https://doi.org/10.1007/s00134-003-1901-1
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DOI: https://doi.org/10.1007/s00134-003-1901-1