MyMedR

Fulltext eComment: Trans-pericardial extra-anatomic aortic bypass for coarctation of the aorta

Sachithanandan A, Badmanaban B

Interact Cardiovasc Thorac Surg, 2011 Jul;13(1):100.

PMID: 21697404 DOI: 10.1510/icvts.2010.265264A

Matched MeSH terms: Blood Vessel Prosthesis Implantation*

Fulltext Update on the management of peripheral arterial disease (PAD)

Liew NC, Moissinac K, Lee L, Gee T, Zezeman RB

Med J Malaysia, 2011 Oct;66(4):386-8; quiz 389.

PMID: 22299571 MyJurnal

There has been much progress made in the management of peripheral arterial disease (PAD) in the past two decades. Progress in the understanding of the endothelial-platelet interaction during health and disease state have resulted in better antiplatelet drugs that can prevent platelet aggregation, activation and thrombosis during angioplasty and stenting. Collaborative effort by different international societies has resulted in a consensus guideline that recommends the modality of intervention in certain disease states. Progress in perioperative care has reduced the morbidity and mortality associated with peripheral vascular reconstruction surgery. Nevertheless, the advances in percutaneous peripheral intervention (PPI) have made a paradigm shift in the current management of patients. The procedure is safe and effective and is emerging as the first choice revascularization procedure.

Matched MeSH terms: Blood Vessel Prosthesis Implantation

Fulltext Unrestricted use of polymer-free sirolimus eluting stents in routine clinical practice

Krackhardt F, Kočka V, Waliszewski M, Toušek P, Janek B, Trenčan M, et al.

Medicine (Baltimore), 2020 Feb;99(8):e19119.

PMID: 32080086 DOI: 10.1097/MD.0000000000019119

Stent designs with ultrathin struts may further increase the procedural success of challenging lesion subsets. The objective of this study was to assess the safety and efficacy of ultrathin strut, polymer-free sirolimus eluting stent (PF-SES) implantations in a large scale, unselected patient population.Adult patients underwent percutaneous coronary interventions (PCI) with a thin-strut PF-SES. Data from two all-comers observational studies having the same protocol (ClinicalTrials.gov Identifiers: NCT02629575 and NCT02905214) were pooled. The accumulated target lesion revascularization (TLR) rate at 9-12 months was the primary endpoint. All dual antiplatelet therapy strategies according to the applicable guidelines were permissible.In total, 7243 patients were prospectively enrolled for PCI with PF-SES in stable coronary artery disease or acute coronary syndrome (ACS). Major risk factors in the overall cohort were diabetes (37.3%), ST elevation myocardial infarction (18.1%) and non-ST myocardial infarction (24.6%). The follow-up rate was 88.6% in the overall population. The TLR rate in the overall cohort was 2.2% whereas definite/probable stent thrombosis (ST) occurred in 0.7%. In patients with in-stent restenosis lesions, the major adverse cardiac events rate was 6.4% whereas the corresponding rate for isolated left main coronary artery (LMCA) disease was highest with 6.7% followed by patients with culprit lesions in vein bypasses (VB, 7.1%). The mortality rate in patients treated in VB lesions was highest with 5.4%, followed by the isolated LMCA subgroup (3.4%) and ACS (2.6%).PCI with PF-SES in an unselected patient population, is associated with low clinical event and ST rates. Furthermore, PF-SES angioplasty in niche indications demonstrated favorable safety and efficacy outcomes with high procedural success rates.

Matched MeSH terms: Blood Vessel Prosthesis Implantation/methods

Fulltext Unilateral adductor vocal cord palsy treated with the titanium vocal fold medializing implant (TVFMI)

Irfan M, Shahid H, Baharudin A, Friedrich G

Med J Malaysia, 2009 Mar;64(1):89-90.

PMID: 19852333 MyJurnal

Vocal cord palsy secondary to recurrent laryngeal nerve injury may be attributable to trauma, infiltrating neoplasm, congenital cardiac anomaly and others. Regardless the causes, majority of unilateral adductor palsy cases are usually managed by speech rehabilitation in order to allow compensation. In selected cases, medialization procedure may be required to achieve a complete glottal closure during phonation. Multiple techniques have been developed to achieve this goal. This case report illustrates the recent advancement in vocal fold medialization procedure, which has not been widely practiced in Malaysia.

Matched MeSH terms: Prosthesis Implantation/methods*

Tricuspid valve papillary fibroelastoma: a rare tumor with a diagnostic dilemma

Haron H, Yusof MR, Maskon O, Ooi J, Rahman MR

Heart Surg Forum, 2012 Feb;15(1):E59-60.

PMID: 22360910 DOI: 10.1532/HSF98.20111000

Papillary fibroelastoma is a rare primary tumor of the heart valves. This lesion can occur on any of the valves or endothelial surface of the heart and has been detected by echocardiography, by cardiac catheterization, during open heart operations for other conditions, and at autopsy. Because of the potential for comorbidities, this tumor should be removed. We present the case of an elderly man with a diagnosis of severe mitral valve regurgitation and moderate tricuspid valve regurgitation who was suspected to have a tricuspid valve vegetation. Mitral valve replacement, tricuspid valve repair, and excision of the lesion were performed successfully. A histologic examination of the vegetation confirmed it to be a papillary fibroelastoma. We present this case to emphasize the rarity of this tumor and the importance of a correct diagnosis to avoid delaying its prompt and definitive management.

Matched MeSH terms: Heart Valve Prosthesis Implantation

Transtibial prosthesis suspension systems: systematic review of literature

Gholizadeh H, Abu Osman NA, Eshraghi A, Ali S, Razak NA

Clin Biomech (Bristol, Avon), 2014 Jan;29(1):87-97.

PMID: 24315710 DOI: 10.1016/j.clinbiomech.2013.10.013

Today a number of prosthetic suspension systems are available for transtibial amputees. Consideration of an appropriate suspension system can ensure that amputee's functional needs are satisfied. The higher the insight to suspension systems, the easier would be the selection for prosthetists. This review attempted to find scientific evidence pertaining to various transtibial suspension systems to provide selection criteria for clinicians.

Matched MeSH terms: Prosthesis Implantation/instrumentation

Transfemoral prosthesis suspension systems: a systematic review of the literature

Gholizadeh H, Abu Osman NA, Eshraghi A, Ali S

Am J Phys Med Rehabil, 2014 Sep;93(9):809-23.

PMID: 24743451 DOI: 10.1097/PHM.0000000000000094

The purpose of this study was to find the scientific evidence pertaining to various transfemoral suspension systems to provide selection criteria for clinicians. To this end, databases of PubMed, Web of Science, and ScienceDirect were explored. The following key words, as well as their combinations and synonyms, were used for the search: transfemoral prosthesis, prosthetic suspension, lower limb prosthesis, above-knee prosthesis, prosthetic liner, transfemoral, and prosthetic socket. The study design, research instrument, sampling method, outcome measures, and protocols of articles were reviewed. On the basis of the selection criteria, 16 articles (11 prospective studies and 5 surveys) were reviewed. The main causes of reluctance to prosthesis, aside from energy expenditure, were socket-related problems such as discomfort, perspiration, and skin problems. Osseointegration was a suspension option, yet it is rarely applied because of several drawbacks, such as extended rehabilitation process, risk for fracture, and infection along with excessive cost. In conclusion, no clinical evidence was found as a "standard" system of suspension and socket design for all transfemoral amputees. However, among various suspension systems for transfemoral amputees, the soft insert or double socket was favored by most users in terms of function and comfort.

Matched MeSH terms: Prosthesis Implantation/instrumentation

Fulltext Tracheobronchial stenting is safe and effective in relieving upper airway obstruction

Pang YK, Liam CK, Leow CH, Shyamala P, Zal AR

Med J Malaysia, 2006 Jun;61(2):147-50.

PMID: 16898303 MyJurnal

Many studies have shown that tracheobronchial stenting is effective in relieving respiratory distress secondary to major airway obstruction due to lung or oesophageal cancer. A retrospective review on the benefits and complications of self-expandable metallic stent (SEMS) insertion through flexible bronchoscopy for the palliative treatment of upper airway obstruction in University Malaya Medical Centre was performed. Ten patients underwent this procedure. Relief of dyspnoea was immediate following stent insertion in all patients. Stent migration occurred in one patient and three patients had restenosis of the central airway. We conclude that tracheobronchial stenting via flexible bronchoscopy is feasible and safe.

Matched MeSH terms: Prosthesis Implantation/instrumentation*

Fulltext Thoracic Endovascular Aortic Repair (TEVAR) in traumatic high-velocity blunt injury to thoracic aorta

Nor Elina NS, Naresh G, Hanif H, Zainal AA

Med J Malaysia, 2013 Jun;68(3):239-44.

PMID: 23749014 MyJurnal

Matched MeSH terms: Blood Vessel Prosthesis Implantation*

The use of fibrin and poly(lactic-co-glycolic acid) hybrid scaffold for articular cartilage tissue engineering: an in vivo analysis

Munirah S, Kim SH, Ruszymah BH, Khang G

Eur Cell Mater, 2008 Feb 21;15:41-52.

PMID: 18288632

Our preliminary results indicated that fibrin and poly(lactic-co-glycolic acid) (PLGA) hybrid scaffold promoted early chondrogenesis of articular cartilage constructs in vitro. The aim of this study was to evaluate in vivo cartilaginous tissue formation by chondrocyte-seeded fibrin/PLGA hybrid scaffolds. PLGA scaffolds were soaked carefully, in chondrocyte-fibrin suspension, and polymerized by dropping thrombin-calcium chloride (CaCl2) solution. PLGA-seeded chondrocytes were used as a control. Resulting constructs were implanted subcutaneously, at the dorsum of nude mice, for 4 weeks. Macroscopic observation, histological evaluation, gene expression and sulphated-glycosaminoglycan (sGAG) analyses were performed at each time point of 1, 2 and 4 weeks post-implantation. Cartilaginous tissue formation in fibrin/PLGA hybrid construct was confirmed by the presence of lacunae and cartilage-isolated cells embedded within basophilic ground substance. Presence of proteoglycan and glycosaminoglycan (GAG) in fibrin/PLGA hybrid constructs was confirmed by positive Safranin O and Alcian Blue staining. Collagen type II exhibited intense immunopositivity at the pericellular matrices. Chondrogenic properties were further demonstrated by the expression of gene encoded cartilage-specific markers, collagen type II and aggrecan core protein. The sGAG production in fibrin/PLGA hybrid constructs was higher than in the PLGA group. In conclusion, fibrin/PLGA hybrid scaffold promotes cartilaginous tissue formation in vivo and may serve as a potential cell delivery vehicle and a structural basis for articular cartilage tissue-engineering.

Matched MeSH terms: Prosthesis Implantation

Fulltext Surface profile analysis of laminated transfemoral prosthetic socket fabricated with different ratios of epoxy resin and acrylic resin

Zainuddin NAMN, Razak NAA, Karim MSA, Osman NAA

Sci Rep, 2023 Feb 15;13(1):2664.

PMID: 36792914 DOI: 10.1038/s41598-022-21990-y

Acrylic and epoxy are common types of resin used in fabricating sockets. Different types of resin will affect the internal surface of a laminated socket. This paper is to determine the best combination of ratio for epoxy and acrylic resin for a laminated prosthesis socket and to evaluate the surface profile analysis of different combinations of laminated prosthetic sockets for surface roughness. Transfemoral sockets were created using various resin-to-hardener ratios of 2:1, 3:1, 3:2, 2:3, and 1:3 for epoxy resin and 100:1, 100:2, 100:3, 100:4, and 100:5 for acrylic resin. Eight layers of stockinette consisting of four elastic stockinette and four Perlon stockinette were used. A sample with a size of 4 cm × 6 cm was cut out from the socket on the lateral side below the Greater Trochanter area. The Mitutoyo Sj-210 Surface Tester stylus was run through the sample and gave the Average Surface Roughness value (Ra), Root Mean Square Roughness value (Rq), and Ten-Point Mean Roughness value (Rz). Epoxy resin shows a smoother surface compared to acrylic resin with Ra values of is 0.766 µm, 0.9716 µm, 0.9847 µm and 1.5461 µm with 3:2, 3:1, 2:1 and 2:3 ratio respectively. However, for epoxy resin with ratio 1:3, the resin does not cure with the hardener. As for acrylic resin the Ra values are 1.0086 µm, 2.362 µm, 3.372 µm, 4.762 µm and 6.074 µm with 100: 1, 100:2, 100:5, 100:4 and 100:3 ratios, respectively. Epoxy resin is a better choice in fabricating a laminated socket considering the surface produced is smoother.

Matched MeSH terms: Prosthesis Implantation

Superior vena cava obstruction bypass - an alternative technique using bovine pericardial conduit: a case report

Abdullah F, Adeeb S

Heart Surg Forum, 2003;6(3):E50-1.

PMID: 12821439

An alternative technique of superior vena cava obstruction bypass using bovine pericardial conduit is described. The patient in this case had recurrent bilateral thrombophlebitis and thrombosed saphenous veins. Most of the surgical techniques reported in the literature so far have described the use of polyethylene terephthalate (Dacron) graft, polytetrafluoroethylene graft, autologous pericardial patch, and spiral vein graft. The use of synthetic grafts has been plagued with high rates of thrombosis. The pathology, clinical presentation, surgical technique, and outcome are discussed.

Matched MeSH terms: Blood Vessel Prosthesis Implantation/methods*

Successful placement of left ventricular pacing lead despite coronary sinus perforation into the pericardial space with an obstructive flap

Tamin SS, Hussin A, Za I, Halmey N, Azman W

Pacing Clin Electrophysiol, 2007 Feb;30(2):276-9.

PMID: 17338728

Coronary sinus perforation is a relatively uncommon but much feared complication that may occur during the placement of left ventricular pacing lead. Coronary sinus perforation, especially in the presence of an obstructive flap, usually indicates the need to abandon the implantation attempt, as there are difficulties in crossing the obstructive flap as well as uncertainty of whether the lead is in the true lumen or into the pericardial space. We describe our experience in successfully placing the left ventricular lead safely despite the problems arising from these circumstances.

Matched MeSH terms: Prosthesis Implantation/adverse effects*; Prosthesis Implantation/methods*

Single stage treatment of complex aortic pathology (mega-aortic syndrome) using frozen elephant trunk technique

Krishna Moorthy PS, Saat SA, Sakijan AS

Med J Malaysia, 2019 02;74(1):94-96.

PMID: 30846673

This is a case report of single-stage total thoracic aortic repair by the frozen elephant trunk technique for a 75-yearold female with a complex aortic pathology of mega-aorta extending from the ascending aorta to the descending aorta. We used a Thora flex™ Hybrid device, a frozen elephant trunk device with four branched grafts and the distal stent graft. The distal stent graft was inserted into the downstream descending aorta via an aortic arch and positioned 15 cm beyond the left subclavian artery after total arch replacement had been performed using a four-branch graft. The postoperative course was unremarkable with no complications. A post procedural computed tomography scan demonstrated complete exclusion of the descending thoracic aneurysm without endoleak. Therefore, fixing the whole mega-aorta in a single stage using the frozen elephant trunk was effective and safe.

Matched MeSH terms: Blood Vessel Prosthesis Implantation/methods

Fulltext Ruptured abdominal aortic aneurysm treated by endovascular aneurysm repair under local anaesthesia

Tay JWT, Leong YP

Med J Malaysia, 2012 Feb;67(1):111-2.

PMID: 22582560 MyJurnal

A 68 year old man with significant cardiorespiratory risks factors presented with a ruptured thoracic aortic aneurysm (TAA). This was treated by emergency thoracic endovascular aneurysm repair (TEVAR) under general anaesthesia (GA). An incidental abdominal aortic aneurysm (AAA) was not treated. Eight months later, he presented with ruptured AAA. Due to the patient's compromised respiratory system, he underwent endovascular aneurysm repair (EVAR) under local anaesthesia (LA). He had a smoother post-operation recovery compared to the first repair under GA.

Matched MeSH terms: Blood Vessel Prosthesis Implantation*

Fulltext Reducing the failure rate of ocular prosthesis at Hospital Sultanah Aminah

Muhamad Imran Abdulah, Ikmal Abdul Hakim, Rosni Amin, Rosliza Parumo, Ma, Bee Chai, Noraziyah Abdul Aziz, et al.

Q Bulletin, 2020;1(29):16-27.

MyJurnal

The Department of Oral & Maxillofacial Surgery at Hospital Sultanah Aminah, Johor Bahru started managing patients who lost their eyeballs with ocular prosthesis in 2013. Unfortunately, there was an increasing trend of failed ocular prosthesis from 2013-2015. The failure rate went from 28.6% in 2013 to 40% in 2014 and increased to 44.4% in 2015. Failed ocular prosthesis not only leads to dissatisfied patients but also an increase in cost due to redoing of prosthesis. The objective of this project was to reduce the incidence rate of failed ocular prosthesis. A failed case is when the prosthesis does not pass the issue stage and has to be redone from the beginning. The standard failure rate is 0%, as the average number of cases per year is only about 10 cases. We determined the contributing factors of failed ocular prosthesis by analysing retrospective data from patients’ dental and lab records. This was followed by a self-administered questionnaire on reasons for failed cases which was distributed among the dentists and lab technicians in our department. The contributing factors that were identified included insufficient knowledge or skill of dentist and lab technicians in the construction of the ocular prosthesis, as well as improper screening of new cases which was the main factor of all the failed cases. The strategies for change included improving the process of care by creating a checklist for proper screening of new patients, mentoring of new staff, and continuous training on construction of ocular prosthesis, Fabricated Iris Mould innovation technique and early referral for insertion of eye conformer. The interventions that were implemented reduced the failure rate to 20% in 2016 followed by 0% in 2017, 2018 and 2019. Ongoing efforts are being done to replicate this project in other Oral & Maxillofacial Surgery clinics in Johor.

Matched MeSH terms: Prosthesis Implantation

Pyogenic Granuloma Formation Following Ahmed Valve Glaucoma Implant

Chendran P, Seng Fai T, Wan Abdul Halim WH, Md Din N

J Glaucoma, 2019 10;28(10):e162-e164.

PMID: 31368915 DOI: 10.1097/IJG.0000000000001334

Ocular pyogenic granuloma is a benign tumor seen after ocular insult secondary to ocular surgeries, trauma or infection. Although benign, intervention is sometimes necessary. Previous authors have reported pyogenic granuloma formation following oculoplastic surgeries. We report a pyogenic granuloma after an Ahmed glaucoma valve implantation. A 65-year-old gentleman presented with right eye redness associated with pain and swelling ~2 months after Ahmed glaucoma valve implantation. Examination found a sessile growth on the tube extruding puss with signs of endophthalmitis. The glaucoma drainage device was explanted and culture results grew Staphylococcus aureus. This article discusses the formation of pyogenic granuloma on a glaucoma drainage device and its management.

Matched MeSH terms: Prosthesis Implantation

Prosthetic management of mid-facial defect with magnet-retained silicone prosthesis

Buzayan MM

Prosthet Orthot Int, 2014 Feb;38(1):62-7.

PMID: 23625838 DOI: 10.1177/0309364613484052

Mid-facial defect is one of the most disfiguring and impairing defects. A design of prosthesis that is aesthetic and stable can be precious to a patient who has lost part of his face due to surgical excision. Prosthesis can restore the patients' self-esteem and confidence, which affects the patients and their life style. The aim of this case report is to describe a technique of mid-facial silicone prosthesis fabrication.

Matched MeSH terms: Prosthesis Implantation*

Percutaneous plating in paediatric tibial fractures

Yusof NM, Oh CW, Oh JK, Kim JW, Min WK, Park IH, et al.

Injury, 2009 Dec;40(12):1286-91.

PMID: 19539282 DOI: 10.1016/j.injury.2009.02.020

Although non-operative treatment is a mainstay of tibial fracture management in children, certain fractures require a surgical approach. However, choices concerning optimal methods and implants are difficult. The purpose of this study was to determine the effectiveness of percutaneous plating of tibial fractures in children.

Matched MeSH terms: Prosthesis Implantation/methods

Percentage of mesh reduction appropriate for designing digital obturator prostheses on personal computers

Farook TH, Abdullah JY, Jamayet NB, Alam MK

J Prosthet Dent, 2021 Feb 15.

PMID: 33602541 DOI: 10.1016/j.prosdent.2020.07.039

STATEMENT OF PROBLEM: Computer-aided design (CAD) of maxillofacial prostheses is a hardware-intensive process. The greater the mesh detail is, the more processing power is required from the computer. A reduction in mesh quality has been shown to reduce workload on computers, yet no reference value of reduction is present for intraoral prostheses that can be applied during the design.

PURPOSE: The purpose of this simulation study was to establish a reference percentage value that can be used to effectively reduce the size and polygons of the 3D mesh without drastically affecting the dimensions of the prosthesis itself.

MATERIAL AND METHODS: Fifteen different maxillary palatal defects were simulated on a dental cast and scanned to create 3D casts. Digital bulbs were fabricated from the casts. Conventional bulbs for the defects were fabricated, scanned, and compared with the digital bulb to serve as a control. The polygon parameters of digital bulbs were then reduced by different percentages (75%, 50%, 25%, 10%, 5%, and 1% of the original mesh) which created a total of 105 meshes across 7 mesh groups. The reduced mesh files were compared individually with the original design in an open-source point cloud comparison software program. The parameters of comparison used in this study were Hausdorff distance (HD), Dice similarity coefficient (DSC), and volume.

RESULTS: The reduction in file size was directly proportional to the amount of mesh reduction. There were minute yet insignificant differences in volume (P>.05) across all mesh groups, with significant differences (P

Matched MeSH terms: Prosthesis Implantation

Displaying publications 1 - 20 of 69 in total