Iranian Journal of Neurosurgery

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Showing 3 results for Taheri

The Cervical Sequestrated Disc Fragment Presenting as Mass Lesion: Case Report and Review of the Literature

Ali Babashahi, Morteza Taheri,
Volume 2, Issue 2 (9-2016)

Abstract

Background & Importance: Disc herniation is defined as the prolapsed of material disc into the spinal canal. If the disc fragment is free in spinal canal, it is called sequestration disc fragment. Occasionally, alteration in sequestration disc fragment makes the diagnosis of the disc herniation, challenging.
Case Presentation: We reviewed a rare case of the cervical sequestrated disc herniation mimicking a spinal canal extradural abscess. The 55-year-old man presented cervical axial and radicular pain. Cervical spine MRI showed an extra-axial longitudinal mass behind C5 and C6 vertebral body association with anterior compression on cord. In T2 images of lesion, the signal intensity varied from isointense to hyperintense and marked peripheral enhancement with GD injection. After unilateral right C6 hemilaminectomy, a sequestrated disc fragment was resected from epidural space.
Conclusion: The histopathologic findings were in favor of sequestrated disc herniation. Although MRI is the main preoperative diagnostic tool for accurate diagnosis of the sequestrated disc herniation, the sequestrated disc fragment can show the variable features on MRI and can be misdiagnosed with the other space-occupying lesions.

Liponeurocytoma of the Cerebellopontine Angle: An Interesting Case Report and Literature ReviewInteresting Case Report and Literature Review

Seyed Ali Mousavinejad, Ahmad Jabbari, Mahmoud Dehghan, Kaveh Ebrahimzadeh, Kasra Amin Kazemi, Jouan Taheri Talesh, Omidvar Rezaei,
Volume 5, Issue 3 (Summer & Autumn 2019)

Abstract

Background and Importance: Liponeurocytoma is a rare tumor of the CNS. Some of its prominent features include low neuronal proliferation with foci of lipomatous differentiation. So far, 70 reports on cases of brain liponeurocytoma have been published. Most of them were located in the cerebellar hemisphere, but only 7 cases of primary Cerebellopontine Angle (CPA) liponeurocytoma have been reported.
Case Presentation: We presented a 27-year-old woman with a 6-month progressive headache and dizziness. More recently, she developed progressive hearing loss and ataxia. Pre-operative MRI of the brain demonstrated a heterogeneous solid extra-axial lesion in the right CPA with
hydrocephalus. The operation was performed via the retro sigmoid approach. Histopathological diagnosis was confirmed as liponeurocytoma. No radiotherapy was performed. The patient was followed up for two years. There were no signs of recurrence.
Conclusion: Liponeurocytoma is a rare tumor. In most of the cases, it is presented in the cerebellum, and the CPA as the primary location of this tumor is extremely uncommon. Typically, surgery is the treatment of choice for these lesions. If the tumor is subtotal, radiotherapy after operation and
resection can also be advantageous.

Tracheal Tube Cuff Pressure Measurement Methods in Lumbar Disc Surgery

Mohammad Sadegh Sanie Jahromi, Meysam Zarei, Lohrasb Taheri, Mansour Deylami, Navid Kalani,
Volume 10, Issue 0 (Continuous Publishing 2024)

Abstract

Background and Aim: Accurate tracheal tube cuff pressure measurement is crucial to prevent complications in patients undergoing mechanical ventilation. However, manual inflation methods, which are still commonly used in clinical practice, may lead to inaccurate cuff pressure measurements, compromising patient safety. Therefore, this study aims to compare the accuracy of manual and manometric methods for tracheal tube cuff pressure measurement in patients undergoing lumbar disc surgery in the prone position and to assess the safety implications of manual inflation methods.
Methods and Materials/Patients: This prospective analytical descriptive study was conducted on 60 patients undergoing lumbar disc surgery in the prone position. Tracheal tube cuff pressure was initially recorded in the supine position using both the manual method and the manometric method. Following the prone positioning of the patient, the cuff pressure was immediately recorded and adjusted by manometry. Subsequent recordings were made every 15 minutes until the conclusion of the surgery, using only the manometric method. Data were analyzed using descriptive statistics, including mean and percentage, as well as relevant statistical tests, such as repeated measurement and analysis of variance (ANOVA) using SPSS software, version 16.
Results: Significant differences were observed in tracheal tube cuff pressure measurements between the two instrumental (manometer) and manual methods in patients in the prone position (P<0.001). Tracheal tube cuff pressure, measured by both instrumental (manometer) and manual methods, exhibited significant differences at various time points (zero, 15 minutes, 30 minutes, 60 minutes, and 90 minutes) concerning body mass index in prone position patients (P<0.05). Additionally, a significant difference was observed in tracheal tube cuff pressure based on the duration of surgery (P<0.05), with the highest cuff pressure reported in patients with a surgical duration of 2 hours or more in the prone position.
Conclusion: The study results showed that tracheal tube cuff pressure measured by the instrumental method (manometer) was consistently lower than that measured by the manual method in patients placed in the prone position. Therefore, the manual approach may cause safety issues for patients.

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