Placement of intracranial pressure monitors by non-neurosurgeons: excellent outcomes can be achieved.

BACKGROUND: Traumatic brain injury remains one of the most prevalent and costly injuries encountered within the discipline of trauma and represents a leading cause of morbidity and mortality within our society. The purpose of this study was to compare the safety of intracranial pressure (ICP) monitor placement by general surgery residents and neurosurgeons. METHODS: A retrospective chart review of all trauma patients requiring ICP monitor placement at an American College of Surgeons-verified Level 1 trauma center during a 10-year period was performed. Comparison of demographic variables, injury severity, intracranial injuries, incidence of ICP monitor-related complications, and outcomes were made between general surgery residents, trauma surgeons, and neurosurgeons. RESULTS: There were 546 patients included in the study. The average age of the cohort was 37.6 years, with an average hospital length of stay being 16.0 days and an Injury Severity Score of 27.7. Mechanisms of injury varied, but 58.8% was a result of motor vehicle and motorcycle collisions, and an additional 19.2% was a result of falls. No significant difference was found in terms of procedure-related complications between subgroups, including intracranial hemorrhage, infection, malfunctions, dislodgment, or death. CONCLUSION: Our results demonstrate that the placement of ICP monitors may be performed safely by both neurosurgeons and non-neurosurgeons. This procedure should thus be considered a core skill for trauma surgeons and surgical residents alike, thereby allowing initiation of prompt medical treatment in both rural areas and trauma centers with inadequate neurosurgeon or fellow coverage. LEVEL OF EVIDENCE: Therapeutic study, level IV.

Resting tremor secondary to a pineal cyst: case report and review of the literature.

BACKGROUND: Patients with pineal lesions typically present with the classical signs of increased intracranial pressure (headache, nausea, vomiting) and/or Parinaud's syndrome. Rare symptomatology of secondary parkinsonism attributed to pineal lesions has been previously reported in the literature. We describe an unusual case of a pineal cyst in a patient with the presenting sign of a resting tremor. CASE DESCRIPTION: We report an 18-year-old Caucasian female who presented with a 1-month history of a new-onset progressive, unilateral low-frequency right-hand resting tremor with associated headache, nausea, vomiting, and excessive diarrhea. Magnetic resonance imaging demonstrated an atypical appearance with enhancement of a mildly prominent pineal gland, possibly representing a pineal cyst. The patient did not exhibit radiographic signs of hydrocephalus. Based upon the radiographic appearance, one could not exclude with absolute certainty the presence of a malignancy. The patient ultimately underwent a bilateral suboccipital craniotomy with gross total resection of the lesion. Postoperatively, the patient exhibited immediate resolution of her preoperative resting tremor and continues to be symptom free at 1 year. CONCLUSIONS: A new-onset, resting tremor and/or other secondary parkinsonism symptoms should raise clinical suspicions of pineal lesions. Treatment can be guided based on tissue type and the presence or absence of hydrocephalus. We observed that complete surgical resection of the lesion provided the best treatment option for the total resolution of symptoms attributed to the disturbance of the microvasculature surrounding the nigro-striatal-pallidal system.

Case report: spontaneous intracranial hypotension in association with the presence of a false localizing C1-C2 cerebrospinal fluid leak.

BACKGROUND: Spontaneous intracranial hypotension is an increasingly recognized cause of new-onset, daily, persistent headaches. Although these headaches are similar to post-lumbar puncture headaches, characteristic differences include intracranial pachymeningeal enhancement, subdural fluid collections, and downward displacement of the brain. The identification of upper cervical epidural fluid collections as a false localizing sign in patients with SIH has provided significant insight into the selection of management options. CASE DESCRIPTION: We review a case of a 57-year-old woman who presented to our institution with progressive orthostatic headaches relieved by recumbency. The patient had no recent history of lumbar puncture, spinal, or intracranial procedure. The patient isolated the onset of symptoms to 3 weeks prior, when she was lifting heavy items in her home, and was diagnosed with SIH. Subsequently, she was found to have a C1-C2 epidural fluid collection. After much diagnostic consideration and review of the literature, the collection was defined as a false localizing sign; and the patient eventually underwent a lumbar EBP with complete resolution of her symptoms. CONCLUSIONS: Upper cervical fluid collections in patients with SIH often represent a false localizing sign. Conservative management should be instituted; and if unsuccessful, a lumbar EBP should be performed. It is important to note that C1-C2 fluid accumulations may not provide the actual leak site in patients presenting with SIH. This understanding prevents therapy from being unintentionally directed at C1-C2.

Circumferential cervical spine surgery in an 18-month-old female with traumatic disruption of the odontoid and C3 vertebrae. Case report and review of techniques. Case report and review of techniques.

STUDY DESIGN: A case study of an 18-month-old female with craniovertebral instability and spinal cord compression requiring circumferential stabilization. A review of surgical techniques in upper cervical spine and craniovertebral stabilization for young children is provided. OBJECTIVES: To describe an interesting surgical approach in a young pediatric patient requiring circumferential stability at the craniovertebral junction. BACKGROUND DATA: Craniovertebral instability is problematic in the young pediatric population due to the inability to secure hardware for stabilization. We present an interesting case of spinal cord compression with craniovertebral instability in an 18-month-old female requiring circumferential cervical spine and craniovertebral stabilization. METHODS: The patient presented with acute onset quadriparesis after a fall. Radiographs demonstrated C2-C3 disruption with canal compromise. Magnetic resonance imaging revealed signal changes of the spinal cord at C2-C3. Neurological examination revealed normal muscle volume with strength 1/5 in the upper extremities and 0/5 in the lower extremities. Respirations were normal with normal diaphragmatic function. Cranial nerves were intact. RESULTS: Halo-traction attempted at 0.453 kg induced occipital-atlantal dislocation. The patient underwent anterior corpectomy of C3 and the base of C2 with autologous rib grafts placed from C2 to C4 and macropore as an anterior plating system. Posteriorly the patient had occiput-C3 fusion with a titanium rod and autologous rib grafts bilaterally. Postoperatively the patient regained normal neurological function with circumferential fusion after 4 months in a halo vest. CONCLUSIONS: This case demonstrates the ability to achieve circumferential stabilization in the young pediatric patient. Injuries at the odontoid synchondrosis can be difficult to treat and are only complicated by having to achieve a posterior fusion at the craniovertebral junction. We present a successful case of circumferential fusion and offer a surgical technique to achieve spinal cord decompression and fusion of the upper cervical spine and craniovertebral junction in the young pediatric population.