[Thrombosis of the cavernous sinus following prone-position spinal surgery in a patient with factor V Leiden]. / Trombosis de seno cavernoso tras una cirugía raquídea en decúbito prono en un paciente portador del factor V de Leiden.

INTRODUCTION: Non-infectious thrombosis of the cavernous sinus has sometimes been reported as a complication following neurosurgical procedures and, in one case, after carrying out the operation in a prone position. Factor V Leiden is a genetic risk factor for presenting an intracranial venous thrombotic disease. We report the case of a patient who suffered thrombosis of the cavernous sinus following prolonged surgery in the prone position and in whom a mutation of factor V Leiden in a heterozygotic state was discovered. CASE REPORT: A 64-year-old male, with arterial hypertension as the only known vascular risk factor, who, after prolonged surgery in a prone position, presented amaurosis in the left eye accompanied some hours later by ocular pain, conjunctival ecchymosis, proptosis and abolition of extrinsic ocular mobility. An angiography scan confirmed the existence of thrombosis in the cavernous sinus. Treatment was established with low-molecular-weight heparin without the occurrence of any other kinds of complications. The patient gradually recovered extrinsic ocular mobility but not visual acuity. A heterozygotic mutation for factor V Leiden was found in a hypercoagulability study that was later performed. CONCLUSIONS: The coexistence of a risk factor for presenting a venous thrombotic disease and a mechanical phenomenon, venous statis, due to the posture adopted for the surgical intervention together account for the complication presented by the patient.

Trombosis de seno cavernoso tras una cirugía raquídea en decúbito prono en un paciente portador del factor V de Leiden / Thrombosis os the carvenous sinus following prone-position spinal surgery in a patient with factor y leiden

Introducción. La trombosis del seno cavernoso no infecciosa ha sido descrita en ocasiones como complicación tras la realización de procedimientos neuroquirúrgicos y, en un caso, después de llevarla a cabo en decúbito prono. El factor V de Leiden es un factor de riesgo genético para presentar una enfermedad trombótica venosa intracraneal. Presentamos el caso de un paciente que sufre una trombosis del seno cavernoso tras una cirugía prolongada en decúbito prono y en quien se descubrió una mutación del factor V de Leiden en estado heterocigoto. Caso clínico. Varón de 64 años de edad, con hipertensión arterial como único factor de riesgo vascular conocido, quien, tras una intervención quirúrgica prolongada en decúbito prono, presentó una amaurosis en el ojo izquierdo acompañada, en las horas posteriores, de dolor ocular, equimosis conjuntival, proptosis y abolición de la motórica ocular extrínseca. Una angiografía confirmó la existencia de una trombosis del seno cavernoso. Se instauró tratamiento con heparinas de bajo peso molecular sin que se produjeran otros tipos de complicaciones. El paciente recuperó paulatinamente la motórica ocular extrínseca, pero no la agudeza visual. En el estudio de hipercoagulabilidad realizado posteriormente se encontró una mutación heterocigota para el factor V de Leiden. Conclusión. La coexistencia de un factor de riesgo para presentar una enfermedad trombótica venosa junto con un fenómeno mecánico, de estasis venosa, a causa de la posición quirúrgica, explican la complicación que presentó el paciente (AU)

Introduction. Non-infectious thrombosis of the cavernous sinus has sometimes been reported as a complication following neurosurgical procedures and, in one case, after carrying out the operation in a prone position. Factor V Leiden is a genetic risk factor for presenting an intracranial venous thrombotic disease. We report the case of a patient who suffered thrombosis of the cavernous sinus following prolonged surgery in the prone position and in whom a mutation of factor V Leiden in a heterozygotic state was discovered. Case report. A 64-year-old male, with arterial hypertension as the only known vascular risk factor, who, after prolonged surgery in a prone position, presented amaurosis in the left eye accompanied some hours later by ocular pain, conjunctival ecchymosis, proptosis and abolition of extrinsic ocular mobility. An angiography scan confirmed the existence of thrombosis in the cavernous sinus. Treatment was established with low-molecular-weight heparin without the occurrence of any other kinds of complications. The patient gradually recovered extrinsic ocular mobility but not visual acuity. A heterozygotic mutation for factor V Leiden was found in a hypercoagulability study that was later performed. Conclusions. The coexistence of a risk factor for presenting a venous thrombotic disease and a mechanical phenomenon, venous statis, due to the posture adopted for the surgical intervention together account for the complication presented by the patient (AU)

Consentimiento informado en Neurología / Informed consent in Neurology

No disponible

[Muscular pseudohypertrophy and intraspinal neurinoma]. / Seudohipertrofia muscular y neurinoma intrarraquídeo.

We present a patient with protracted hypertrophy of the left calf, light triceps suralis weakness, and mild inconstant left foot pain. The clinical picture evolved slowly throughout more than eight years, and lately slight weakness in anterior right leg musculature appeared. The magnetic resonance examination revealed the existence of an intrarachideal extraspinal tumor adjacent to the conus medullaris that histologically was a neurinoma. Although the neurogenic pseudohypertrophy has diverse etiology, the present association is unpublished.