Abstract
Posterior reversible encephalopathy syndrome (PRES) is a clinico-radiological entity characterized by variable associations of headaches, encephalopathy, seizures, vomiting, visual disturbance, and focal neurological signs. Neuroimaging shows cerebral edema of different patterns, classically involving the parieto-occipital white matter. PRES has been associated with several conditions predominantly hypertension, eclampsia, and immunosuppressive therapy. However, constipation has not been previously described in association with the development of PRES. In this report, we describe an 11-year-old child with history of severe functional constipation who developed PRES, as a consequence of renovascular hypertension from severe fecal impaction. Both hypertension and neurologic dysfunction resolved after resolution of fecal impaction.
Conclusion: Severe functional constipation is a previously unrecognized cause of severe acute hypertension, resulting in life-threatening neurologic dysfunction. We highlight this unrecognized complication of severe functional constipation with fecal impaction that is potentially preventable if managed appropriately.
What is Known: • Posterior reversible encephalopathy syndrome (PRES) is a life-threatening disorder • PRES has been associated with multiple conditions, including hypertension and immunosuppressive therapy |
What is New: • Constipation with severe fecal impaction may cause severe renovascular hypertension and PRES • Severe functional constipation is a previously unrecognized cause of severe symptomatic hypertension that could result in acute brain dysfunction, such as PRES |
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Abbreviations
- °F:
-
Degrees Fahrenheit
- ALT:
-
Alanine aminotransferase
- AST:
-
Aspartate aminotransferase
- BP:
-
Blood pressure
- cm:
-
Centimeter
- g/dL:
-
Gram per deciliter
- kg:
-
Kilogram
- mcL:
-
Microliter
- mg/dL:
-
Milligram per deciliter
- min:
-
Minutes
- mmHg:
-
Millimeters of mercury
- mmol/L:
-
Millimol per liter
- MRA:
-
Magnetic resonance angiography
- MRI:
-
Magnetic resonance imaging
- ng/mL/h:
-
Nanogram per milliliter per hour
- PRES:
-
Posterior reversible encephalopathy syndrome
- U/L:
-
Units per liter
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Acknowledgments
We thank Karen Sorensen, MLS, reference librarian at the D. Samuel Gottesman Libraryof the Albert Einstein College of Medicine, for her assistance with the literature search.
Conflict of interest
Dr. Prasad declares that she has no conflict of interest, Dr. Wetzler declares that she has no conflict of interest, Dr. Holtmann declares that she has no conflict of interest, Dr. Dapul declares that she has no conflict of interest, Dr. Kupferman has received a consulting honorarium from Alexion Pharmaceuticals.
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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
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Informed consent was not required by the institutional review board for the purpose of this case report.
Authors’ Contributions
Dr Prasad made substantial contribution to acquisition of data, drafted the initial manuscript, and approved the final manuscript as submitted.
Drs. Wetzler, Holtmann, and Dapul made substantial contributions to analysis and interpretation of data, critically reviewed and revised the manuscript, and approved the final manuscript as submitted.
Dr. Kupferman made substantial contribution to conception, design and analysis of interpretation of data, critically reviewed and edited the manuscript, and approved the final manuscript as submitted.
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Communicated by Beat Steinmann
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Prasad, M., Wetzler, G., Holtmann, J. et al. Constipation, renovascular hypertension, and posterior reversible encephalopathy syndrome (PRES). Eur J Pediatr 175, 421–425 (2016). https://doi.org/10.1007/s00431-015-2627-0
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DOI: https://doi.org/10.1007/s00431-015-2627-0