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Retinal circulation and intracranial pressure in idiopathic intracranial hypertension
Author(s) -
PIERRU A,
VIGNAL C,
GENEVOIS O,
PAQUES M
Publication year - 2012
Publication title -
acta ophthalmologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.534
H-Index - 87
eISSN - 1755-3768
pISSN - 1755-375X
DOI - 10.1111/j.1755-3768.2012.t130.x
Subject(s) - medicine , papilledema , lumbar puncture , fundus photography , retinal , central retinal vein , fundus (uterus) , venous hypertension , vein , intracranial pressure , neurosurgery , ophthalmology , retinal vein , surgery , fluorescein angiography , cerebrospinal fluid
Purpose Idiopathic Intracranial Hypertension (IIH) is associated with moderate to severe papilledema (PE). Cases of central retinal vein oclusion identified in IIH suggest that PE can obstruct venous flow. The aim of this study was to evaluate the effect of intracranial hypertension on venous circulation and to determine the correlation between vascular caliber and intracranial pressure level. Methods In this retrospective multicenter study, we included 8 patients with newly diagnosed IIH. Fundus photography were performed before and after lumbar puncture at various time points. The images were aligned with i2k pro© software. Arterio‐veinous ratio (AVR) was measured by a dedicated software. Results Immediately following lumbar puncture these was decrease of the diameter of the central retinal vein. In 4 patients, an associated decrease in venous tortuosity was observed. For all patients, AVR increased immediately after lumbar puncture. This was due to the combined effect of a decreased venous diameters and an increase of the arterial caliber. Conclusion Venous diameters may be an interesting indicator of PE evolution. Fundus photography are a non‐invasive, convenient method to investigate and monitor IIH which may be useful in a variety of setting, including neurosurgery units. A prospective study is necessary to confirm these results.