Displaying all 13 publications

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  1. Kamis MFAK, Ishak A, Bahari N, Yaakob MNM, Abdul Rahim E, Baharin J, et al.
    Med J Malaysia, 2023 Dec;78(7):890-892.
    PMID: 38159923
    INTRODUCTION: Diffusion-weighted imaging (DWI) in magnetic resonance imaging (MRI) has been proposed as the first line of neuroimaging for acute ischaemic stroke. The reliability of DWI in detecting intracranial haemorrhage, however, is still unproven, compared with susceptibility-weighted imaging (SWI) and CT scan which being considered the gold standard. This study seeks to establish the reliability of DWI as a first-line imaging modality to detect the intracranial haemorrhage in the patients present within the thrombolysis window.

    MATERIALS AND METHODS: A retrospective cross-sectional analysis was performed on patients who presented to our institution from April 2020 until July 2021 for acute stroke and had MRI brain as first-line neuroimaging. A total of 31 subjects were included in this study. Two radiologists assessed the signal patterns in DWI sequence and compared them with SWI and CT Brain, whenever available, as the gold standard for observing the presence of intracranial haemorrhage.

    RESULTS: The majority of patients with hyperacute bleed proven to be revealed on SWI or CT, thus showed characteristics of central hyperintensity and peripheral hypointense rim, on DWI. Slightly more than half (51.6%) presented with mild to moderate NIHSS scores (1-15). The sensitivity, specificity, positive predictive value and negative predictive value of DWI in detecting intracranial intra-axial haemorrhages were exceptionally high. There is strong interobserver level of agreement in identifying central haemorrhagic signal intensity [kappa = 0.94 (0.06), p < 0.05].

    CONCLUSION: This study supported the DWI sequence as a reliable sequence in MRI, to detect intracranial haemorrhage in hyperacute stroke.

  2. Law ZK, Tan HJ, Chin SP, Wong CY, Wan Yahya WNN, Muda AS, et al.
    Cytotherapy, 2021 Sep;23(9):833-840.
    PMID: 33992536 DOI: 10.1016/j.jcyt.2021.03.005
    BACKGROUND AIMS: Mesenchymal stromal cells (MSCs) are characterized by paracrine and immunomodulatory functions capable of changing the microenvironment of damaged brain tissue toward a more regenerative and less inflammatory milieu. The authors conducted a phase 2, single-center, assessor-blinded randomized controlled trial to investigate the safety and efficacy of intravenous autologous bone marrow-derived MSCs (BMMSCs) in patients with subacute middle cerebral artery (MCA) infarct.

    METHODS: Patients aged 30-75 years who had severe ischemic stroke (National Institutes of Health Stroke Scale [NIHSS] score of 10-35) involving the MCA territory were recruited within 2 months of stroke onset. Using permuted block randomization, patients were assigned to receive 2 million BMMSCs per kilogram of body weight (treatment group) or standard medical care (control group). The primary outcomes were the NIHSS, modified Rankin Scale (mRS), Barthel Index (BI) and total infarct volume on brain magnetic resonance imaging (MRI) at 12 months. All outcome assessments were performed by blinded assessors. Per protocol, analyses were performed for between-group comparisons.

    RESULTS: Seventeen patients were recruited. Nine were assigned to the treatment group, and eight were controls. All patients were severely disabled following their MCA infarct (median mRS = 4.0 [4.0-5.0], BI = 5.0 [5.0-25.0], NIHSS = 16.0 [11.5-21.0]). The baseline infarct volume on the MRI was larger in the treatment group (median, 71.7 [30.5-101.7] mL versus 26.7 [12.9-75.3] mL, P = 0.10). There were no between-group differences in median NIHSS score (7.0 versus 6.0, P = 0.96), mRS (2.0 versus 3.0, P = 0.38) or BI (95.0 versus 67.5, P = 0.33) at 12 months. At 12 months, there was significant improvement in absolute change in median infarct volume, but not in total infarct volume, from baseline in the treatment group (P = 0.027). No treatment-related adverse effects occurred in the BMMSC group.

    CONCLUSIONS: Intravenous infusion of BMMSCs in patients with subacute MCA infarct was safe and well tolerated. Although there was no neurological recovery or functional outcome improvement at 12 months, there was improvement in absolute change in median infarct volume in the treatment group. Larger, well-designed studies are warranted to confirm this and the efficacy of BMMSCs in ischemic stroke.

  3. Che Ani MF, Kumar R, Md Noh MSF, Muda AS
    BJR Case Rep, 2018 Mar;4(3):20170058.
    PMID: 31489208 DOI: 10.1259/bjrcr.20170058
    Carotid-cavernous fistulas (CCFs) are vascular shunts between the carotid arterial system with direct drainage into the cerebral venous system, mainly to the cavernous sinus. Direct CCF is a well-recognised complication following head trauma. Classically in direct or traumatic CCF, vessel wall tear occurs at the cavernous segment of the internal carotid artery, between the fixed and free segment. Tears at the supraclinoid segment are rare. We report a case of an internal carotid artery supraclinoid segment pseudoaneurysm, with a direct communication with the cavernous sinus, draining into the superior ophthalmic vein.
  4. Rajadurai A, Aziz AA, Daud NAM, Wahab AFA, Muda AS
    Malays J Med Sci, 2017 Dec;24(6):107-112.
    PMID: 29379394 DOI: 10.21315/mjms2017.24.6.14
    Introduction: Venous aneurysms are not as common as their arterial counterpart. The choice of management is debatable. Case Report: We present the case of a teenage boy with left external jugular vein aneurysm treated by endovascular technique. Embolisation was done using pushable microcoils with access via the femoral vein and direct puncture.

    Conclusion: This form of treatment provides a less-invasive option with a more concrete evaluation of the venous abnormality and its drainage during venous aneurysm occlusion.

  5. Hashim H, Muda AS, Abdul Aziz A, Abdul Hamid Z
    Malays J Med Sci, 2016 Jul;23(4):59-64.
    PMID: 27660546 MyJurnal DOI: 10.21315/mjms2016.23.4.8
    Embolisation has long been used as an adjunct to surgical resection in the treatment of brain arteriovenous malformation (bAVM). The most commonly used embolic material, n-butylcyanoacrylate glue, requires experience and skill to handle its quick and unpredictable flow and polymerisation. A new liquid embolic agent, ethylene vinyl alcohol copolymer (Onyx), is less adhesive and polymerises slowly, which provides better control for radiologists performing embolisation.
  6. Soh HY, Muda AS, Jabar NA, Nordin R, Nabil S, Ramli R
    Oral Maxillofac Surg, 2015 Dec;19(4):423-5.
    PMID: 25903486 DOI: 10.1007/s10006-015-0497-2
    Traumatic pseudoaneurysm involving the maxillary artery is rare. Owing to its anatomic location, internal maxillary artery is usually protected by its surrounding structures. Formation of pseudoaneurysm usually takes place after several weeks to months of the initial injury. In this case, we reported a pseudoaneurysm arising from left internal maxillary artery following blunt injuries within 3 hours after a road accident and the treatment with endovascular embolization with titanium coils prior to open reduction and internal fixation of the fractured mandibles.
  7. Nguyen DV, Muda AS, Yaacob Y
    Malays J Med Sci, 2013 May;20(3):71-7.
    PMID: 23966829 MyJurnal
    Mesenchymal chondrosarcoma is a rare disease with poor prognosis. Treatment including wide or radical excision is very important. Radiotherapy and chemotherapy are additional treatment options, but no conclusive results for their efficacy have been shown until date. Imaging modalities can give important clues for diagnosis and management planning. Angioembolization before surgery could be useful as prophylaxis to control intraoperative bleeding, increasing the likelihood of complete resection.
  8. Yaacob Y, Zakaria R, Mohammad Z, Ralib AR, Muda AS
    Malays J Med Sci, 2011 Oct;18(4):98-102.
    PMID: 22589680
    Central venous catheter placement is indicated in patients requiring long-term therapy. With repeated venous catheterisations, conventional venous access sites can be exhausted. This case illustrates the expanding role of radiology in managing difficult venous access. We present a case of translumbar, transhepatic, and transcollateral placement of central catheter in a woman with a difficult venous access problem who required lifelong parenteral nutrition secondary to short bowel syndrome. This case highlights the technical aspects of interventional radiology in vascular access management.
  9. Muda AS, Ralib AR, Yaacob Y, Zakaria R, Bakar AA
    Malays J Med Sci, 2011 Oct;18(4):91-7.
    PMID: 22589679
    Endovascular treatment of wide-necked aneurysms poses a challenge for the endovascular therapist. The Y-stent-assisted technique has been used for stent-assisted coil embolisation for wide-necked bifurcation aneurysms. This technique has been described for basilar tip aneurysms and middle cerebral artery bifurcation aneurysms using Neuroform and Enterprise stents. We report 2 cases of wide-necked bifurcation aneurysms that were treated with Y-stent-assisted coil embolisation using a new, fully retrievable and detachable intracranial stent (Solitaire AB™). We describe the advantages of a fully retrievable and detachable stent and its feasibility of forming a Y configuration.
  10. Reda Mahmoud TA, Ismail NI, Muda AS, Abdul Rahman MR
    Ann Thorac Surg, 2010 Aug;90(2):654-5.
    PMID: 20667375 DOI: 10.1016/j.athoracsur.2010.02.031
    Bismuth paste injection into the pleural cavity used to be a treatment for chronic empyema thoracis. This method, however, was long forgotten and scarcely practiced due to advanced surgical techniques and antibiotic therapy. We report a 50-year-old man with chronic empyema thoracis who was successfully treated with bismuth paste injection after a failed surgical decortication and a long-term chest drainage. This case highlights a trial of a 100-year-old method of bismuth paste injection which proved effective after standard measures had failed.
  11. Md Ralib AR, Han NT, Hin HS, Muda AS
    Malays J Med Sci, 2010 Jul;17(3):55-60.
    PMID: 22135550 MyJurnal
    Massive haemoptysis is the most dreaded of all respiratory emergencies. Bronchial artery embolisation is known to be a safe and effective procedure in massive haemoptysis. Bronchial artery of anomalous origin presents a diagnostic challenge to interventional radiologists searching for the source of haemorrhage. Here, we report a case of massive haemoptysis secondary to a lung carcinoma with the bronchial artery originating directly from the right subclavian artery. This artery was not evident during the initial flush thoracic aortogram. The anomalous-origin bronchial artery was then embolised using 15% diluted glue with good results. An anomalous-origin bronchial artery should be suspected if the source of haemorrhage is not visualised in the normally expected bronchial artery location.
  12. Md Ralib AR, Zakaria R, Mohamad Z, Muda AS
    Malays J Med Sci, 2009 Oct;16(4):34-41.
    PMID: 22135510 MyJurnal
    Superselective embolisation has been recognised as integral in the management of lower gastrointestinal haemorrhage. It has also reduced the need for emergency surgery. The objective of this case series was to describe the lower gastrointestinal haemorrhage cases seen in our centre, its diagnosis and the role of superselective embolisation in patient management.
  13. Mohamed WN, Abdullah NN, Muda AS
    Malays J Med Sci, 2008 Jul;15(3):55-7.
    PMID: 22570590 MyJurnal
    We report a rare case of Arteriovenous malformation (AVM) of the scalp in a 30 year-old Malay gentleman who presented with painless forehead swelling since birth. Magnetic Resonance Imaging (MRI) and cerebral angiogram performed and the findings are discussed.
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