Displaying publications 1 - 20 of 21 in total

Abstract:
Sort:
  1. Saleem A, Najibullah M, Shabbir Z, Azab W
    Childs Nerv Syst, 2023 Dec;39(12):3373-3379.
    PMID: 37173435 DOI: 10.1007/s00381-023-05990-5
    Colloid cysts of the third ventricle are benign intracranial lesions that account for 0.5 to 2% of all brain tumors and are even rarer in pediatric population. Dandy was the first to successfully excise a colloid cyst of the third ventricle via a transcortical transventricular approach in 1921. For several decades to follow, the transcortical transventricular and transcallosal microsurgical approaches remained the cornerstone of surgical management of these lesions. With time and refinements in endoscopic equipment and techniques, endoscopic resection of colloid cysts evolved into a currently well-established and appealing minimally invasive alternative to microsurgery. Endoscopic endochannel techniques for colloid cysts of the third ventricle may either be transforaminal or trans-septal interforniceal, depending on the pathoanatomical features of the colloid cyst and its relation to the juxtaposed anatomical structures. The endoscopic trans-septal interforniceal approach is required to access the rare subset of colloid cysts that extend superior to the roof of the third ventricle between the two fornices insinuating themselves between the leaflets of the septum pellucidum. In this article, the surgical technique of the endochannel endoscopic trans-septal interforniceal approach is elaborated upon. A representative case is presented along with an operative video.
    Matched MeSH terms: Neurosurgical Procedures/methods
  2. Al-Siweedi SY, Nambiar P, Shanmuhasuntharam P, Ngeow WC
    ScientificWorldJournal, 2014;2014:719243.
    PMID: 24892077 DOI: 10.1155/2014/719243
    This study is aimed at determining anatomical landmarks that can be used to gain access to the inferior alveolar neurovascular (IAN) bundle. Scanned CBCT (i-CAT machine) data of sixty patients and reconstructions performed using the SimPlant dental implant software were reviewed. Outcome variables were the linear distances of the mandibular canal to the inferior border and the buccal cortex of the mandible, measured immediately at the mental foramen (D1) and at 10, 20, 30, and 40 mm (D2-D5) distal to it. Predictor variables were age, ethnicity, and gender of subjects. Apicobasal assessment of the canal reveals that it is curving downward towards the inferior mandibular border until 20 mm (D3) distal to the mental foramen where it then curves upwards, making an elliptic-arc curve. The mandibular canal also forms a buccolingually oriented elliptic arc in relation to the buccal cortex. Variations due to age, ethnicity, and gender were evident and this study provides an accurate anatomic zone for gaining surgical access to the IAN bundle. The findings indicate that the buccal cortex-IAN distance was greatest at D3. Therefore, sites between D2 and D5 can be used as favorable landmarks to access the IAN bundle with the least complications to the patient.
    Matched MeSH terms: Neurosurgical Procedures/methods*
  3. Kundu M, Ng JC, Awuah WA, Huang H, Yarlagadda R, Mehta A, et al.
    Postgrad Med J, 2023 May 22;99(1170):240-243.
    PMID: 36892407 DOI: 10.1093/postmj/qgad002
    The tremendous evolution in modern technology has led to a paradigm shift in neurosurgery. The latest advancements such as augmented reality, virtual reality, and mobile applications have been incorporated into neurosurgical practice. NeuroVerse, representing the application of the metaverse in neurosurgery, brings enormous potential to neurology and neurosurgery. Implementation of NeuroVerse could potentially elevate neurosurgical and interventional procedures, enhance medical visits and patient care, and reshape neurosurgical training. However, it is also vital to consider the challenges that may be associated with its implementation, such as privacy issues, cybersecurity breaches, ethical concerns, and widening of existing healthcare inequalities. NeuroVerse adds phenomenal dimensions to the neurosurgical environment for patients, doctors, and trainees, and represents an incomparable advancement in the delivery of medicine. Therefore, more research is needed to encourage widespread use of the metaverse in healthcare, particularly focusing on the areas of morality and credibility. Although the metaverse is expected to expand rapidly during and after the COVID-19 pandemic, it remains to be seen whether it represents an emerging technology that will revolutionize our society and healthcare or simply an immature condition of the future.
    Matched MeSH terms: Neurosurgical Procedures/methods
  4. Abouammo MD, Narayanan MS, Alsavaf MB, Alwabili M, Gosal JS, Bhuskute GS, et al.
    Oper Neurosurg (Hagerstown), 2024 Sep 01;27(3):347-356.
    PMID: 38506519 DOI: 10.1227/ons.0000000000001119
    BACKGROUND AND OBJECTIVES: Expanded endonasal approaches (EEAs) have proven safe and effective in treating select petrous apex (PA) pathologies. Angled endoscopes and instruments have expanded indications for such approaches; however, the complex neurovascular anatomy surrounding the petrous region remains a significant challenge. This study evaluates the feasibility, anatomic aspects, and limitations of a contralateral nasofrontal trephination (CNT) route as a complementary corridor improving access to the PA.

    METHODS: Expanded endonasal and CNT approaches to the PA were carried out bilaterally in 15 cadaveric heads with endovascular latex injections. The distance to the PA, angle between instruments through the 2 approach portals, and surgical freedom were measured and compared.

    RESULTS: Three-dimensional DICOM-based modeling and visualization indicate that the CNT route reduces the distance to the target located within the contralateral PA by an average of 3.33 cm (19%) and affords a significant increase in the angle between instruments (15.60°; 54%). Furthermore, the vertical vector of approach is improved by 28.97° yielding a caudal reach advantage of 2 cm. The area of surgical freedom afforded by 3 different approaches (endonasal, endonasal with an endoscope in CNT portal, and endonasal with an instrument in CNT portal) was compared at 4 points: the dural exit point of the 6th cranial nerve, jugular foramen, foramen lacerum, and petroclival fissure. The mean area of surgical freedom provided by both approaches incorporating the CNT corridor was superior to EEA alone at each of the surgical targets ( P =

    Matched MeSH terms: Neurosurgical Procedures/methods
  5. Xin Z, Du Y, Zhang C, Zhang B, Qi M, Meng H, et al.
    J Neurosurg Spine, 2024 Sep 01;41(3):407-415.
    PMID: 38848604 DOI: 10.3171/2024.3.SPINE231161
    OBJECTIVE: Intraspinal cysts are uncommon, and the success rate of complete resection is still low for spinal neurenteric cysts (NCs). The aim of this study was to evaluate the efficacies of an anterior microscopic surgical approach in the treatment of ventral and ventrolateral subaxial cervical NCs (SCNCs).

    METHODS: Between 2019 and 2022, 9 patients with NCs of the subaxial spine underwent an anterior microsurgical approach. Their clinical presentations, radiological features, operative findings, and follow-up data were retrospectively reviewed and analyzed.

    RESULTS: All spinal cysts were intradural and extramedullary in origin. Five patients were first-time cases while 4 patients with recurrence underwent revision surgery. The most common clinical manifestation was pain (77.78%). One patient was found to have a concomitant disorder of Klippel-Feil syndrome. Microscopically confirmed gross-total resection was achieved in 8 patients (88.89%) based on clinical comparisons between pre- and postoperative MRI and intraoperative video. One patient had symptom recurrence 1 year after subtotal resection, while there was no evidence of recurrence during follow-up for the other patients. Dense adhesions within the spinal cord were observed in 8 patients (88.89%) intraoperatively. Most importantly, the surgical outcome was significantly improved in all patients, and the mean (± SE) Japanese Orthopaedic Association score increased from 11.33 ± 0.91 preoperatively to 16.22 ± 0.32 postoperatively (p = 0.008).

    CONCLUSIONS: An anterior surgical approach was proven to be both safe and effective in treating the ventral or ventrolateral SCNCs. The authors believe that an anterior microsurgical approach should be considered as a useful approach especially in patients with ventral recurrent SCNCs. Its clinical efficacy compared with a posterior approach in ventral spinal cyst may be better as most of the neurenteric cysts are ventrally or ventrolaterally located.

    Matched MeSH terms: Neurosurgical Procedures/methods
  6. Al-Kadi MI, Reaz MB, Ali MA, Liu CY
    Sensors (Basel), 2014;14(7):13046-69.
    PMID: 25051031 DOI: 10.3390/s140713046
    This paper presents a comparison between the electroencephalogram (EEG) channels during scoliosis correction surgeries. Surgeons use many hand tools and electronic devices that directly affect the EEG channels. These noises do not affect the EEG channels uniformly. This research provides a complete system to find the least affected channel by the noise. The presented system consists of five stages: filtering, wavelet decomposing (Level 4), processing the signal bands using four different criteria (mean, energy, entropy and standard deviation), finding the useful channel according to the criteria's value and, finally, generating a combinational signal from Channels 1 and 2. Experimentally, two channels of EEG data were recorded from six patients who underwent scoliosis correction surgeries in the Pusat Perubatan Universiti Kebangsaan Malaysia (PPUKM) (the Medical center of National University of Malaysia). The combinational signal was tested by power spectral density, cross-correlation function and wavelet coherence. The experimental results show that the system-outputted EEG signals are neatly switched without any substantial changes in the consistency of EEG components. This paper provides an efficient procedure for analyzing EEG signals in order to avoid averaging the channels that lead to redistribution of the noise on both channels, reducing the dimensionality of the EEG features and preparing the best EEG stream for the classification and monitoring stage.
    Matched MeSH terms: Neurosurgical Procedures/methods
  7. Tang IP, Chai CK, Kumar G, Prepageran N, Waran V
    Br J Neurosurg, 2014 Jun;28(3):390-2.
    PMID: 23875880 DOI: 10.3109/02688697.2013.817535
    Isolated intrasellar pituitary mucocele following transsphenoidal sinus surgery is extremely rare. The clinical features resemble a pituitary tumor, therefore careful radiological interpretation is crucial to reach the correct diagnosis. We report a case of intrasellar mucocele who had transsphenoidal sinus surgery performed 15 years prior.
    Matched MeSH terms: Neurosurgical Procedures/methods
  8. Waran V, Sek K, Bahuri NF, Narayanan P, Chandran H
    Minim Invasive Neurosurg, 2011 Oct;54(5-6):279-81.
    PMID: 22278798 DOI: 10.1055/s-0031-1297997
    In endoscopic neurosurgery problems with haemostasis due to poor access exist. We have developed a system which allows the delivery of a variety of haemostatic agents in a more efficacious manner. The system has been used successfully in endoscopic skull base surgery and endoscopic surgery within the parenchyma of the brain using tube systems.
    Matched MeSH terms: Neurosurgical Procedures/methods
  9. Vashu R, Tan S, Wong AS
    J Clin Neurosci, 2009 Jul;16(7):960-2.
    PMID: 19346131 DOI: 10.1016/j.jocn.2008.09.013
    We report on two patients with intra-operative rupture of cerebral aneurysms that were managed by microsuturing. This is one of only a few reports of successful direct repair using suturing. We found that stitching remains an option to repair a tear of a saccular part of an aneurysm and a torn neck of a blister-like aneurysm, and thus this technique can be considered before sacrificing the artery.
    Matched MeSH terms: Neurosurgical Procedures/methods*
  10. Munusamy T, Karuppiah R, Bahuri NFA, Sockalingam S, Cham CY, Waran V
    World Neurosurg, 2021 01;145:e53-e60.
    PMID: 32956888 DOI: 10.1016/j.wneu.2020.09.076
    OBJECTIVE: The coronavirus disease 2019 pandemic poses major risks to health care workers in neurocritical care. Recommendations are in place to limit medical personnel attending to the neurosurgical patient as a protective measure and to conserve personal protective equipment. However, the complexity of the neurosurgical patient proves to be a challenge and an opportunity for innovation. The goal of our study was to determine if telemedicine delivered through smart glasses was feasible and effective in an alternative method of conducting ward round on neurocritical care patients during the pandemic.

    METHODS: A random pair of neurosurgery resident and specialist conducted consecutive virtual and physical ward rounds on neurocritical patients. A virtual ward round was first conducted remotely by a specialist who received real-time audiovisual information from a resident wearing smart glasses integrated with telemedicine. Subsequently, a physical ward round was performed together by the resident and specialist on the same patient. The management plans of both ward rounds were compared, and the intrarater reliability was measured. On study completion a qualitative survey was performed.

    RESULTS: Ten paired ward rounds were performed on 103 neurocritical care patients with excellent overall intrarater reliability. Nine out of 10 showed good to excellent internal consistency, and 1 showed acceptable internal consistency. Qualitative analysis indicated wide user acceptance and high satisfaction rate with the alternative method.

    CONCLUSIONS: Virtual ward rounds using telemedicine via smart glasses on neurosurgical patients in critical care were feasible, effective, and widely accepted as an alternative to physical ward rounds during the coronavirus disease 2019 pandemic.

    Matched MeSH terms: Neurosurgical Procedures/methods*
  11. Goh CH, Lau BL, Teong SY, Law WC, Tan CS, Vasu R, et al.
    Med J Malaysia, 2019 12;74(6):499-503.
    PMID: 31929475
    INTRODUCTION: Carpal tunnel syndrome (CTS) is the commonest median nerve entrapment neuropathy of the hand, up to 90% of all nerve compression syndromes. The disease is often treated with conservative measures or surgery. The senior author initially intended to treat his own neurosurgical patients concurrently diagnosed with carpal tunnel syndrome in 2014, subsequently, he began to pick up more referrals from the primary healthcare group over the years. This has led to the setup of a peripheral and spine clinic to act as a hub of referrals.

    OBJECTIVE: Department of Neurosurgery Sarawak aimed to evaluate the surgical outcome of carpal tunnel release done over five years.

    METHODS: The carpal tunnel surgeries were done under local anaesthesia (LA) given by neurosurgeons (Bupivacaine 0.5% or Lignocaine 2%). Monitored anaesthesia care (MAC) was later introduced by our hospital neuroanaesthetist in the beginning of 2018 (Target-controlled infusion propofol and boluses of fentanyl). We looked into our first 17 cases and compared these to the two anaesthesia techniques (LA versus MAC + LA) in terms of patient's pain score based on visual analogue scale (VAS).

    RESULTS: Result showed MAC provided excellent pain control during and immediately after the surgery. None experienced anaesthesia complications. There was no difference in pain control at post-operation one month. Both techniques had equal good clinical outcome during patients' clinic follow up.

    CONCLUSION: Neurosurgeons provide alternative route for CTS patients to receive surgical treatment. Being a designated pain free hospital, anaesthetist collaboration in carpal tunnel surgery is an added value and improves patients overall experience and satisfaction.

    Matched MeSH terms: Neurosurgical Procedures/methods*
  12. Idris Z, Johnson JR, Abdullah JM
    J. Neurosurg., 2015 Mar;122(3):504-10.
    PMID: 25343181 DOI: 10.3171/2014.9.JNS132683
    The splenial-habenular junctional area is an alternative site for neuroendoscopic fenestration to divert CSF flow into the quadrigeminal cistern in cases in which endoscopic third ventriculostomy is not amenable. In some patients with obstructive hydrocephalus, the splenium of the corpus callosum can be elevated from the habenular complex. This exposes the membranous connection between the splenium and habenula, which can be fenestrated to divert the CSF flow into the quadrigeminal cistern. This technique can be performed in patients in whom the foramen of Monro or the third ventricle is blocked by a lesion. Here, the authors present 3 complex cases that were managed by neuronavigation-guided transventricular transcavum endoscopic fenestration of the splenial-habenular junctional area. These cases may increase the knowledge and understanding of the anatomy of this region.
    Matched MeSH terms: Neurosurgical Procedures/methods*
  13. Waran V, Vairavan N, Sia SF, Abdullah B
    J. Neurosurg., 2009 Dec;111(6):1127-30.
    PMID: 19408977 DOI: 10.3171/2009.4.JNS081506
    The authors describe a newly developed expandable cannula to enable a more efficient use of an endoscope in removing intraparenchymal spontaneous hypertensive intracerebral hematomas. The cannula is introduced like a conventional brain cannula, using neuronavigation techniques to reach the targeted hematoma accurately, and, once deployed, conventional microsurgical techniques are used under direct endoscopic visualization. This method was used in 6 patients, and, based on the results of intraoperative intracranial pressure monitoring and postoperative CT scanning, the authors were able to achieve good hematoma removal. They found that by using the expandable cannula, efficient endoscopic surgery in the brain parenchyma was possible.
    Matched MeSH terms: Neurosurgical Procedures/methods
  14. Md Ralib AR, Ariff AR, Shuaib IL, Naing NN, George PJ, Abdullah JM
    PMID: 15691152
    A cross-sectional study was conducted to predict the outcome in patients with subdural empyema, using initial and post-treatment CT scan brain parameters. Data collection was done on those children who were diagnosed to have subdural empyema by CT scan of the brain with contrast, who underwent burrhole evacuation, from February 2000 until April 2002. Numerous factors, such as coma or loss of unconsciousness at diagnosis, age, types of antibiotic, microbiology, extension of empyema, associated cerebral infarction and ventriculitis, were analyzed. Poor prognosis was associated with loss of consciousness, and hypodensity by CT scan at presentation (p < 0.005). Patients with an extensive subdural empyema will have a good outcome if they are treated early and aggressively with antibiotics and burrhole evacuation.
    Matched MeSH terms: Neurosurgical Procedures/methods
  15. Baharuddin A, Go BT, Firdaus MN, Abdullah J
    Clin Neurol Neurosurg, 2002 Sep;104(4):342-4.
    PMID: 12140102
    Bovine pericardium has widely been used for grafts in cardiac surgery and seems to have suitable properties for use as a dural graft. We report our experience of using locally processed bovine pericardium for dural grafts in 22 patients undergoing cranial operations.
    Matched MeSH terms: Neurosurgical Procedures/methods*
  16. Farouk A, Abdullah J
    Minim Invasive Neurosurg, 1998 Jun;41(2):74-8.
    PMID: 9651914
    The first endoscopic procedure done in Malaysia using the Caemaert-Abdullah method is reported and the followup results showed an excellent neurosurgical outcome. A 16-year-old girl with an aqueduct stenosis was operated on using a free-hand, computer-assisted endoscopic method where a third ventriculostomy was done. This was the first case being carried out in the Hospital Universiti Sains Malaysia. The next two cases were a suprasellar pituitary cyst in an elderly man and a child with an obstructive hydrocephalus who was previously shunted which became infected. Both endoscopic procedures, extirpation of the cyst using a Nd:Yag laser and a third ventriculostomy, respectively, were done under general anaesthesia in the supine position. Follow-up revealed a transient diabetes insipidus in all three cases up to 48 hours after the operation which resolved spontaneously. The fourth case involved an endoscopic removal of retained ventricular catheter after rectal migration of a shunt in an eight-year-old girl with congenital hydrocephalus. The fifth was a free-hand endoscopy with perforation of multiple brain septae in a ten-month-old baby with hydrocephalus secondary to meningitis. The final outcomes for all the cases were favourable hence we conclude that endoscopic neurosurgery is a safe procedure and hope that more neurosurgeons will continue to use this method, especially for the management of intraventricular cyst and hydrocephalus and especially in South East Asia.
    Matched MeSH terms: Neurosurgical Procedures/methods*
  17. Phang ZH, Saw XY, Nor NFBM, Ahmad ZB, Ibrahim SB
    BMC Cancer, 2018 Nov 14;18(1):1112.
    PMID: 30428857 DOI: 10.1186/s12885-018-5012-3
    BACKGROUND: Sacral chordoma is a locally aggressive malignant tumour originating from ectopic notochordal cells. The natural history of sacral chordoma is a slow growing tumour arising at the midline of the lower sacrum that can invade the sacrum and progressively increase in size expanding cranially and anteriorly. Metastasis is very rare even when the tumour is large. Sacral chordoma affects males more than females and is more commonly found in middle age and elderly patients.

    CASE PRESENTATION: A 25 years old female had neglected an extremely large midline sacral mass for 2 years. On presentation to hospital, she had been bed bound for the past 2 years. The sacral mass was so large that it prevented her from lying down supine and sitting on the wheelchair comfortably. Clinical examination showed a 40 cm × 30 cm × 20 cm hard mass over the sacrum that involved both buttocks and the gluteal fold. Neurological exam of bilateral lower limb was normal. Computed Tomography Scan of the Pelvis showed a large destructive sacrococcygeal mass measuring 43 cm × 38 cm × 27 cm with extension into the presacral space resulting in anterior displacement of the rectum, urinary bladder and uterus; and posterior extension into the dorsal soft tissue with involvement of the gluteus, piriformis, and left erector spinae muscles. Biopsy taken confirmed Chordoma. This patient was managed by a multidisciplinary team in an Oncology referral centre. The patient had undergone Wide En Bloc Resection and Sacrectomy, a complex surgery that was associated with complications namely bleeding, surgical site infection and neurogenic bowel and bladder. Six months post operatively the patient was able to lie supine and sit on wheelchair comfortably. She required extensive rehabilitation to help her ambulate in future.

    CONCLUSION: This is a rare case of neglected sacral chordoma in a young female treated with Wide En Bloc Resection and Sacrectomy associated with complications of this complex surgery. Nevertheless, surgery is still worthwhile to improve the quality of life and to prevent complications secondary to prolonged immobilization. A multidisciplinary approach is ideal and team members need to be prepared to address the complications once they arise.

    Matched MeSH terms: Neurosurgical Procedures/methods*
  18. Retrouvey H, Silvanathan J, Bleakney RR, Anastakis DJ
    J Foot Ankle Surg, 2018 01 05;57(3):587-592.
    PMID: 29307741 DOI: 10.1053/j.jfas.2017.10.004
    We report the first case of distal posterior tibial nerve injury after arthroscopic calcaneoplasty. A 59-year-old male had undergone right arthroscopic calcaneoplasty to treat retrocalcaneal bursitis secondary to a Haglund's deformity. The patient complained of numbness in his right foot immediately after the procedure. Two years later and after numerous assessments and investigations, a lateral plantar nerve and medial calcaneal nerve lesion was diagnosed. In the operating room, the presence of an iatrogenic lesion to the distal right lateral plantar nerve (neuroma incontinuity involving 20% of the nerve) and the medial calcaneal nerve (complete avulsion) was confirmed. The tarsal tunnel was decompressed, and both the medial and the lateral plantar nerve were neurolyzed under magnification. To the best of our knowledge, our case report is the first to describe iatrogenic posterior tibial nerve injury after arthroscopic calcaneoplasty. It is significant because this complication can hopefully be avoided in the future with careful planning and creation of arthroscopic ports and treated appropriately with early referral to a nerve specialist if the patient's symptoms do not improve within 3 months.
    Matched MeSH terms: Neurosurgical Procedures/methods*
  19. Tan SH, Ganesan D, Prepageran N, Waran V
    Eur Arch Otorhinolaryngol, 2014 Nov;271(11):3101-5.
    PMID: 24986428 DOI: 10.1007/s00405-014-3149-5
    Matched MeSH terms: Neurosurgical Procedures/methods*
  20. Chai FY, Farizal F, Jegan T
    Turk Neurosurg, 2013;23(4):561-3.
    PMID: 24101284 DOI: 10.5137/1019-5149.JTN.5724-12.1
    Ventriculostomy or external ventricular drain (EVD) placement by free-hand technique has a high malplacement rate. It is a blind procedure that often requires multiple attempts and revisions. To date, no neurological complication due to EVD malplacement has been reported in the literature. In this report, we present the first case of coma induced by a malplaced EVD and the patient regained consciousness after the drain was adjusted. Our discussion focused on various techniques that can improve the accuracy of EVD insertion. EVD insertion under image guidance provides better accuracy with limited disadvantages. We hypothesized that the patient's coma was due to the mass effect and irritation of the malplaced EVD exerted onto the ventral periaqueductal grey matter and the ascending neurons from upper brainstem.
    Matched MeSH terms: Neurosurgical Procedures/methods
Filters
Contact Us

Please provide feedback to Administrator (afdal@afpm.org.my)

External Links