Displaying publications 1 - 20 of 33 in total

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  1. Chong SE, Mohd Nikman A, Saedah A, Wan Mohd Nazaruddin WH, Kueh YC, Lim JA, et al.
    Br J Anaesth, 2017 05 01;118(5):799-801.
    PMID: 28510752 DOI: 10.1093/bja/aex108
    Matched MeSH terms: Ultrasonography, Interventional/methods*
  2. Fraga MV, Stoller JZ, Glau CL, De Luca D, Rempell RG, Wenger JL, et al.
    Pediatrics, 2019 11;144(5).
    PMID: 31615954 DOI: 10.1542/peds.2019-1401
    Point-of-care ultrasound is currently widely used across the landscape of pediatric care. Ultrasound machines are now smaller, are easier to use, and have much improved image quality. They have become common in emergency departments, ICUs, inpatient wards, and outpatient clinics. Recent growth of supportive evidence makes a strong case for using point-of-care ultrasound for pediatric interventions such as vascular access (in particular, central-line placement), lumbar puncture, fluid drainage (paracentesis, thoracentesis, pericardiocentesis), suprapubic aspiration, and soft tissue incision and drainage. Our review of this evidence reveals that point-of-care ultrasound has become a powerful tool for improving procedural success and patient safety. Pediatric patients and clinicians performing procedures stand to benefit greatly from point-of-care ultrasound, because seeing is believing.
    Matched MeSH terms: Ultrasonography, Interventional/methods*
  3. Yap LB, Choy CN, Koh KW, Kannan P, Jeyamalar R, Navin S, et al.
    Med J Malaysia, 2023 Mar;78(2):139-144.
    PMID: 36988521
    INTRODUCTION: Intravascular ultrasound (IVUS) is recommended in the use of left main stem (LMS) percutaneous coronary intervention (PCI). Since the LMS diameter is usually larger than other coronary arteries, a new generation everolimus drug-eluting stent (DES), Synergy Megatron DES (Boston Scientific) has better axial and radial strength allowing more post implant overexpansion and consequently better suited for LMS lesions. We performed a study to evaluate the clinical outcomes of PCI using 1) an improved IVUS protocol with optimisation targets and 2) the use of Megatron stents.

    MATERIALS AND METHODS: This was a study involving LMS PCI coronary lesions using the Synergy Megatron DES. An IVUS protocol using predefined optimisation targets to evaluate for stent malapposition, longitudinal stent deformation, optimal stent expansion >90% of reference lumen and appropriate distal landing zone was used in all cases. The primary end-point was procedural success, defined by successful stent implantation with <30% residual stenosis. The secondary end-point was in-hospital and 30-day major adverse cardiovascular event (MACE).

    RESULTS: Eight patients with significant LMS stenosis were successfully treated with the Megatron stent. The primary end-point was achieved in all patients. There were no cases of stent malapposition or longitudinal stent deformation, one case did not have optimal LMS stent expansion and one case did not have an appropriate distal landing zone. IVUS optimisation criteria were met in 6 (75%) cases. There were no complications of coronary dissection, slow or no reflow, stent thrombosis or vessel perforation. None of the patients suffered in-hospital or 30-day MACE. The average LMS MLD at baseline was 2.1 ± 0.1mm and the post-PCI LMS MLD was 4.0 ± 0.5mm, with a significant acute luminal gain of 1.9 ± 0.7mm (p<0.01). A post-PCI MSA of 17 ± 3.9 mm2 was numerically superior compared to those documented in other LMS PCI trials.

    CONCLUSION: This study demonstrates low rates of shortterm major adverse cardiovascular events among patients with LMS PCI using the Megatron stents. It highlights the usefulness of IVUS-guided optimisation in LMS PCI. With the use of intravascular imaging, the new generation stent technology can improve the treatment of large proximal vessels and PCI of LMS lesions.

    Matched MeSH terms: Ultrasonography, Interventional/methods
  4. Lim SM, Ng BK, Wilson A, Cheong CC, Ng TY, Wang CY
    J Clin Monit Comput, 2021 Jan 02.
    PMID: 33387155 DOI: 10.1007/s10877-020-00623-7
    The primary objective of this study is to compare the effectiveness of cricoid pressure (CP) and paralaryngeal pressure (PLP) on occlusion of eccentric esophagus in patients under general anesthesia (GA). Secondary objectives include the prevalence of patients with central or eccentric esophagus both before and after GA, and the success rate of CP in occluding centrally located esophagus in patients post GA. Fifty-one ASA physical status I and II patients, undergoing GA for elective surgery were enrolled in this study. Ultrasonography imaging were performed to determine the position of the esophagus relative to the trachea: (i) before induction of GA, (ii) after GA before external CP maneuver, (iii) after GA with CP, and (iv) after GA with PLP. CP was applied to all patients whilst PLP via fingertip technique was only applied to patients with an eccentric esophagus. Among a total of 51 patients, 28 of them (55%) had eccentric esophagus pre GA, while this number increase to 33 (65%) after induction of GA. CP success rate was 100% in 18 patients with central esophagus post GA versus 27% in 33 patients with eccentric esophagus post GA (P<0.00001). Overall success rate for CP was 53%. In 33 patients with eccentric esophagus anatomy post GA, PLP success rate was 30% compared with 27% with CP (P=1.000). Ultrasound guided PLP fingertips technique was not effective in patients with an eccentrically located esophagus post GA. Ultrasound guided CP achieved 100% success rate in patients with a centrally located esophagus post GA.
    Matched MeSH terms: Ultrasonography, Interventional
  5. Teoh AYB, Dhir V, Kida M, Yasuda I, Jin ZD, Seo DW, et al.
    Gut, 2018 Jul;67(7):1209-1228.
    PMID: 29463614 DOI: 10.1136/gutjnl-2017-314341
    OBJECTIVES: Interventional endoscopic ultrasonography (EUS) procedures are gaining popularity and the most commonly performed procedures include EUS-guided drainage of pancreatic pseudocyst, EUS-guided biliary drainage, EUS-guided pancreatic duct drainage and EUS-guided celiac plexus ablation. The aim of this paper is to formulate a set of practice guidelines addressing various aspects of the above procedures.

    METHODS: Formulation of the guidelines was based on the best scientific evidence available. The RAND/UCLA appropriateness methodology (RAM) was used. Panellists recruited comprised experts in surgery, interventional EUS, interventional radiology and oncology from 11 countries. Between June 2014 and October 2016, the panellists met in meetings to discuss and vote on the clinical scenarios for each of the interventional EUS procedures in question.

    RESULTS: A total of 15 statements on EUS-guided drainage of pancreatic pseudocyst, 15 statements on EUS-guided biliary drainage, 12 statements on EUS-guided pancreatic duct drainage and 14 statements on EUS-guided celiac plexus ablation were formulated. The statements addressed the indications for the procedures, technical aspects, pre- and post-procedural management, management of complications, and competency and training in the procedures. All statements except one were found to be appropriate. Randomised studies to address clinical questions in a number of aspects of the procedures are urgently required.

    CONCLUSIONS: The current guidelines on interventional EUS procedures are the first published by an endoscopic society. These guidelines provide an in-depth review of the current evidence and standardise the management of the procedures.

    Matched MeSH terms: Ultrasonography, Interventional
  6. Hadzri MH, Rosemi S
    Med J Malaysia, 2012 Apr;67(2):210-1.
    PMID: 22822646
    Pancreatic metastases are very uncommon and originate most commonly from lung, colon, breast and kidney cancer. Ovarian adenocarcinoma has been reported as a primary site of pancreatic metastasis, but its diagnosis has rarely being reported by endoscopic ultrasound guided fine needle aspiration (EUS-FNA). We report a case of multiple metastases to the pancreas from ovarian carcinoma occurring four years after original resection of the primary tumour. Our patient presented with severe epigastric pain which was initially treated as acute pancreatitis. Further imaging modalities showed multiple large pseudocystic lesions in the pancreatic head and body. Subsequent EUS-FNA confirmed that the lesions were metastatic disease from an advanced ovarian carcinoma. She underwent palliative chemotherapy and the pancreatic lesion showed receding size.
    Matched MeSH terms: Ultrasonography, Interventional*
  7. Ho CC, Khor TW, Singam P, Goh EH, Tan GH, Bahadzor B, et al.
    Clin Ter, 2012;163(3):211-4.
    PMID: 22964693
    OBJECTIVE: To evaluate power doppler ultrasonography (PDU)-directed prostate biopsy in patients with elevated serum prostate specific antigen (PSA) levels.
    MATERIALS AND METHODS: Men with serum total PSA levels of more than 4 ng/ml undergoing biopsy for the first time were included. Grey-scale transrectal ultrasound (TRUS) and PDU were performed. PDU signal on vascularity accumulation and perfusion characteristics were recorded and graded as normal or abnormal in the peripheral zone of the prostate. Abnormalities were defined on transverse image as radial or arc hypervascularities. A biopsy regime based on Vienna-normogram was performed in all patients.
    RESULTS: Overall, prostate adenocarcinoma detection rate was 21.4% and abnormal accumulation on PDU signal was identified in 96.7% of those patients (p = 0.01). PDU directed prostate biopsies were positive in 66.7% of the patients with prostate cancer. The sensitivity, specificity, positive predictive value and negative predictive value of PDU signal alone for prostate cancer detection was 96.7%, 24.5% and 96.4% respectively, and PDU guided biopsies were 66.7%, 24.5%, 19.4% and 73% respectively.
    CONCLUSIONS: The high sensitivity and negative predictive value of PDU makes it useful as an aid for TRUS biopsy in selected patient with previous negative biopsies at risk of harbouring prostate cancer.
    Matched MeSH terms: Ultrasonography, Interventional*
  8. Hasan MS, Ling KU, Vijayan R, Mamat M, Chin KF
    Eur J Anaesthesiol, 2011 Dec;28(12):888-9.
    PMID: 21857518 DOI: 10.1097/EJA.0b013e32834ad9bd
    Matched MeSH terms: Ultrasonography, Interventional/methods*
  9. Elagili F, Abdullah N, Fong L, Pei T
    Asian J Surg, 2007 Jan;30(1):40-4.
    PMID: 17337370
    To assess ultrasonographically (US) guided needle aspiration of breast abscesses as an alternative to surgical incision and drainage.
    Matched MeSH terms: Ultrasonography, Interventional*
  10. Beh ZY, Hasan MS, Lai HY, Kassim NM, Md Zin SR, Chin KF
    BMC Anesthesiol, 2015;15:105.
    PMID: 26194896 DOI: 10.1186/s12871-015-0090-0
    The brachial plexus at the infraclavicular level runs deeper compared to its course proximally, giving rise to impaired needle visualisation due to the steep angle of needle insertion with the current ultrasound-guided approach. A new posterior parasagittal in-plane ultrasound-guided infraclavicular approach was introduced to improve needle visibility. However no further follow up study was done.
    Matched MeSH terms: Ultrasonography, Interventional/methods*
  11. Kho SS, Tie ST
    Med J Malaysia, 2019 08;74(4):349-351.
    PMID: 31424050
    Solitary pulmonary nodule (SPN) always raises suspicion for early lung cancer, in which accurate and less invasive biopsy is needed. We report a case of transbronchial cryobiopsy of right upper lobe SPN under radial endobronchial ultrasound (R-EBUS) guidance after an inconclusive computed tomography guided transthoracic needle aspiration. A diagnosis of Stage 1B adenocarcinoma of the lung was made. Patient subsequently underwent curative right upper lobectomy after ruling out mediastinal lymph node involvement. To the best of our knowledge, this is the first report of R-EBUS guided transbronchial cryobiopsy case reported from Malaysia.
    Matched MeSH terms: Ultrasonography, Interventional/methods*
  12. Jutti RC, Subramaniam R, Balsingh D, Qureshi AM
    J Clin Ultrasound, 2002 May;30(4):232-5.
    PMID: 11981933 DOI: 10.1002/jcu.10062
    A 2-month-old male infant with a prenatally diagnosed obstruction of the ureteropelvic junction underwent a dismembered Anderson-Hynes pyeloplasty. A transanastomotic double J ureteral stent was placed between the renal pelvis and the urinary bladder. This report describes the subsequent removal of the double J ureteral stent from the patient's urinary bladder without the aid of a cystoscope: a rigid biopsy forceps was introduced trans-urethrally into the urinary bladder, and the stent was removed with sonographic guidance. Removal of a ureteral stent with sonographic guidance has not been previously reported in infants. This technique may be particularly useful in developing countries, where appropriate-sized cystoscopes and accessories may not be available.
    Matched MeSH terms: Ultrasonography, Interventional*
  13. Leong SS, Wong JHD, Md Shah MN, Vijayananthan A, Jalalonmuhali M, Chow TK, et al.
    Nephrology (Carlton), 2021 Jan;26(1):38-45.
    PMID: 33058334 DOI: 10.1111/nep.13805
    AIM: Renal biopsy is the gold standard for the histological characterization of chronic kidney disease (CKD), of which renal fibrosis is a dominant component, affecting its stiffness. The aim of this study was to investigate the correlation between kidney stiffness obtained by shear wave elastography (SWE) and renal histological fibrosis.

    METHODS: Shear wave elastography assessments were performed in 75 CKD patients who underwent renal biopsy. The SWE-derived estimates of the tissue Young's modulus (YM), given as kilopascals (kPa), were measured. YM was correlated to patients' renal histological scores, broadly categorized into glomerular, tubulointerstitial and vascular scores.

    RESULTS: Young's modulus correlates significantly with tubulointerstitial score (ρ = 0.442, P 

    Matched MeSH terms: Ultrasonography, Interventional/methods
  14. Toh TH, Abdul-Aziz NA, Yahya MA, Goh KJ, Loh EC, Capelle DP, et al.
    Clin Neurophysiol, 2021 10;132(10):2722-2728.
    PMID: 34312065 DOI: 10.1016/j.clinph.2021.05.034
    OBJECTIVE: We aimed to develop a model to predict amyotrophic lateral sclerosis (ALS) disease progression based on clinical and neuromuscular ultrasound (NMUS) parameters.

    METHODS: ALS patients were prospectively recruited. Muscle fasciculation (≥2 over 30-seconds, examined in biceps brachii-brachialis (BB), brachioradialis, tibialis anterior and vastus medialis) and nerve cross-sectional area (CSA) (median, ulnar, tibial, fibular nerve) were evaluated through NMUS. Ultrasound parameters were correlated with clinical data, including revised ALS Functional Rating Scale (ALSFRS-R) progression at one year. A predictive model was constructed to differentiate fast progressors (ALSFRS-R decline ≥ 1/month) from non-fast progressors.

    RESULTS: 40 ALS patients were recruited. Three parameters emerged as strong predictors of fast progressors: (i) ALSFRS-R slope at time of NMUS (p = 0.041), (ii) BB fasciculation count (p = 0.027) and (iii) proximal to distal median nerve CSA ratio 

    Matched MeSH terms: Ultrasonography, Interventional/methods*
  15. Khairul-Asri M G, Jaharudin M EA, Khor V KV, Yusof M R, Mohamad Sharin M F, Jagwani A JA, et al.
    Urologiia, 2024 Sep.
    PMID: 39563589
    OBJECTIVE: To compare the tolerability and feasibility of transrectal(TR) versus transperineal (TP) routes for prostate biopsy under local anaesthesia(LA). To assess the functional outcome and the complication of both procedures.

    METHOD: s. A prospective cohort observational study was performed on patients who underwent prostate biopsy under LA. Visual Analogue Scale (VAS) was used during the procedure. International Prostate Symptoms Score (IPSS) and International Index of Erectile dysfunction (IIEF) were assessed before the procedure and in 14 days after the procedure. Complication for each procedure was recorded.

    RESULT: A total of 128 patients with 64 patients for each group underwent prostate biopsy by TP and TR under LA. TP targeted biopsy group had comparable pain scores to those who underwent the procedure using the TR routes. The median pain score for the TP group was 2 and TR was 3, (IQR=2, range 0-10 for both groups)with no significant pain difference between both groups (P=0.48). Furthermore, there was no significant difference in urinary function(p=0.68) and sexual function (p=0.19) between the two groups post-procedure. Both groups have similar rates of complications, with no significant difference observed. Urinary tract infection incidents that did occur were rare and did not significantly differ between the groups (p=0.21). None of the patients experienced sepsis postoperatively. AUR was reported in both groups, slightly higher with 9.4%(N=6) in the TP group and 6.3%(N=4) in the TR group however no significant difference(p=0.112) was noted. Haematuria is common in both groups with TP (66%) and TR (59%) but self-limiting with Clavien-Dindo grade I without significant difference (p=0.589).

    CONCLUSION: Our results showed that both Transperineal and transrectal approaches have similar tolerability with no significant difference in functional outcome or complications. Further studies are mandatory to verify our results.

    Matched MeSH terms: Ultrasonography, Interventional/methods
  16. Adi O, Fong CP, Ahmad AH, Azil A, Ranga A, Panebianco N
    Am J Emerg Med, 2021 07;45:688.e3-688.e7.
    PMID: 33514476 DOI: 10.1016/j.ajem.2021.01.022
    Pericardial Decompression Syndrome (PDS) is an uncommon but life-threatening complication following pericardiocentesis for cardiac tamponade. We report PDS after pericardiocentesis in two patients that presented to the emergency department with cardiac tamponade. In both cases, pericardiocentesis was performed under ultrasound guidance using the left parasternal approach and approximately 1200-1500 mL of pericardial fluid was removed. Immediately after pericardiocentesis, the haemodynamic status of the patients improved. However, 2-3 h post decompression, both patients developed hypotension and pulmonary edema with reduced left ventricular function, suggestive of PDS. PDS is a condition that is described as paradoxical worsening of vital signs after successful decompression of the pericardium in the setting of acute tamponade. Three possible mechanisms explaining PDS are ischaemic, hemodynamic and autonomic processes. If PDS is unrecognized and untreated, it is associated with a high mortality rate secondary to pulmonary edema and cardiogenic shock. If managed urgently, the cardiopulmonary dysfunction in PDS is usually transient and largely reversible with supportive care.
    Matched MeSH terms: Ultrasonography, Interventional
  17. Duc NM, Keserci B
    Diagn Interv Radiol, 2019 Sep;25(5):398-409.
    PMID: 31287428 DOI: 10.5152/dir.2019.18556
    High-intensity focused ultrasound (HIFU) is a minimally-invasive and non-ionizing promising technology and has been assessed for its role in the treatment of not only primary tumors but also metastatic lesions under the guidance of ultrasound or magnetic resonance imaging. Its performance is notably effective in neurologic, genitourinary, hepato-pancreato-biliary, musculoskeletal, oncologic, and other miscellaneous applications. In this article, we reviewed the emerging technology of HIFU and its clinical applications.
    Matched MeSH terms: Ultrasonography, Interventional
  18. Raffali MAA, Azmi MI, Muhammad SF, Che Hassan HH
    BMJ Case Rep, 2024 Apr 29;17(4).
    PMID: 38684352 DOI: 10.1136/bcr-2024-260649
    A man in his 20s with no medical illness sustained a blunt chest injury with pneumothorax and lung contusion after involving in a motorbike accident. Five days postadmission, he subsequently had myocardial infarction with cardiac arrest, in which coronary angiogram and intravascular ultrasound showed diffused multivessel coronary artery dissection.
    Matched MeSH terms: Ultrasonography, Interventional
  19. Mokhtar MN, Suhaini SA, Chan WK, Khalid I, Tan KW, Lim ACC, et al.
    BMC Med Educ, 2024 Nov 22;24(1):1350.
    PMID: 39578873 DOI: 10.1186/s12909-024-06361-7
    BACKGROUND: Utilising ultrasound technology has resulted in higher success and lower complication rates during regional anaesthesia (RA) procedures. Proper training is necessary to accurately identify structures, optimise images, and improve hand-eye coordination. Simulation training using immersive virtual environments and simulation models has enabled this competency training to be conducted safely before performing on patients. We conducted a study to compare the simulator performance and users' feedback on a Blue Phantom Regional Anaesthesia Ultrasound Training Block and NeedleTrainer™.

    METHODS: Forty-seven participants were recruited via convenient sampling during a RA workshop for novice practitioners. They were divided into the N or B group and then crossover to experience using both Blue Phantom and NeedleTrainer model. Time-to-reach-target, first-pass success rate, and complication rate were assessed, while the learning and confidence scores were rated using six-item and three-item questionnaires, respectively, via a 5-point Likert scale.

    RESULTS: Blue Phantom model has a longer time-to-target as compared to the NeedleTrainer model (16 ± 8 vs 8 ± 3 s, p 

    Matched MeSH terms: Ultrasonography, Interventional
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