Displaying publications 1 - 20 of 551 in total

Abstract:
Sort:
  1. Yang SP, Ying LS, Saw S, Tuttle RM, Venkataraman K, Su-Ynn C
    Endocr Pract, 2015 Nov;21(11):1255-68.
    PMID: 26247114 DOI: 10.4158/EP15850.OR
    OBJECTIVE: Numerous published guidelines have described the optimal management of thyroid cancer. However, these rely on the clinical availability of diagnostic and therapeutic modalities. We hypothesized that the availability of medical resources and economic circumstances vary in Asia-Pacific countries, making it difficult to implement guideline recommendations into clinical practice.

    METHODS: We surveyed participants at the 2009 and 2013 Congresses of the Association of Southeast Asian Nations Federation of Endocrine Societies by distributing questionnaires to attendees at registration.

    RESULTS: Responses were obtained from 268 respondents in 2009 and 163 respondents in 2013. Similar to the high prevalence of low-risk thyroid cancer observed in the Surveillance, Epidemiology, and End Results database, across the Asia-Pacific countries surveyed in 2009 and 2013, 50 to 100% of the respondents from the Philippines, Malaysia, Singapore, China, Taiwan, Thailand, Hong Kong, Korea, and Sri Lanka reported that more than 50% of the patients had low-risk thyroid cancer on follow-up. Importantly, there was much variation with regards to the perceived availability of investigation and treatment modalities.

    CONCLUSION: We found a wide variation in clinicians' perception of availability of diagnostic and therapeutic modalities in the face of a rise in thyroid cancer incidence and thyroid cancer management guidelines that emphasized their importance. The lack of availability of management tools and treatments will prove to be a major barrier to the implementation of thyroid cancer management guidelines in Southeast Asia, and likely in other parts of the world as well.

    Matched MeSH terms: Ultrasonography
  2. Phang ZH, Miskon MFB, Ibrahim SB
    J Med Case Rep, 2018 Jul 18;12(1):211.
    PMID: 30016981 DOI: 10.1186/s13256-018-1751-7
    BACKGROUND: Blunt trauma causing brachial artery injury in a young patient is very rare. Cases of brachial artery injury may be associated with closed elbow dislocation or instability. Elbow dislocation may not be evident clinically and radiologically on initial presentation.

    CASE PRESENTATION: This is a case of a 37-year-old, right-hand dominant, Malay man who fell approximately 6 meters from a rambutan tree and his left arm hit the tree trunk on his way down. He was an active tobacco smoker with a 20 pack year smoking history. On clinical examination, Doppler signals over his radial and ulnar arteries were poor. He proceeded with emergency computed tomography angiogram of his left upper limb which showed non-opacification of contrast at the distal left brachial artery just before the bifurcation of the left brachial artery at his left elbow joint. Radiographs and computed tomography scan also showed undisplaced fracture of left lateral epicondyle and radial head with no evidence of elbow dislocation. He subsequently underwent left brachial to brachial artery bypass which was done using reversed saphenous vein graft and recovered well. His fractures were treated using 90 degree long posterior splint for 2 weeks and he was then allowed early range of motion of the left elbow. This patient developed left elbow dislocation 6 weeks postoperatively. Closed manipulative reduction of his left elbow resulted in incomplete reduction. The functional outcome of his left elbow was limited with a range of motion of left elbow of 0-45 degrees. However, he was not keen for surgery to stabilize his elbow joint during his last follow-up 6 months post injury.

    CONCLUSIONS: This is an uncommon case of brachial artery injury in a civilian caused by blunt trauma associated with occult elbow instability/dislocation and minor fractures around the elbow joint. The treatment of brachial artery injury with clinical evidence of distal ischemia is surgical revascularization. The possibility of elbow instability and dislocation need to be considered in all cases of brachial artery injury because early radiographs and computed tomography scans may be normal. Short-term posterior splint immobilization is not sufficient to prevent recurrent dislocations.

    Matched MeSH terms: Ultrasonography, Doppler
  3. Das Gupta E, Sakthiswary R, Lee SL, Wong SF, Hussein H, Gun SC
    Int J Rheum Dis, 2018 Mar;21(3):705-709.
    PMID: 27456670 DOI: 10.1111/1756-185X.12918
    AIM: The main objective of this study is to elucidate the clinical significance of the SLC2A9/GLUT9 rs11722228 polymorphism among male gout patients.
    METHOD: We consecutively recruited all newly diagnosed male gout patients who were treatment-naive from the rheumatology outpatient clinics of two Malaysian hospitals. Age-matched healthy male adults were employed as controls. All subjects were tested for the SLC2A9/GLUT9 rs11722228 genotypes, serum uric acid (SUA), urine uric acid and creatinine levels. All gout subjects were examined for the presence of tophi and sonographically screened for renal calculi.
    RESULTS: A total of 73 male gout patients and 73 age-matched healthy male adults were recruited in this study. The genotypic frequencies of SLC2A9/GLUT9 rs1172228 did not differ significantly between the gout cases and the healthy controls. The gout subjects with the CC genotype had significantly higher SUA levels (P = 0.002), family history of gout (P < 0.050) and the occurrence of renal calculi (P = 0.026). The SUA-adjusted odds ratios (OR) of the occurrence of renal calculi in the CC genotype (OR = 1 [reference]) was significantly higher than the CT genotype (OR = 0.338, 95%CI: 0.141-0.813) and the TT genotype (OR = 0.271, 95%CI: 0.086-0.854).
    CONCLUSIONS: The genotypic distribution of SLC2A9/GLUT9 rs1172228 in male gout patients did not differ significantly from that of healthy male controls. However, the CC genotype in gout had significant associations with higher levels of SUA, renal calculi and a positive family history of gout.
    Study site: Rheumatology clinic, Tuanku Jaafar Hospital, Malaysia and Putrajaya Hospital, Malaysia
    Matched MeSH terms: Ultrasonography
  4. Cader RA, Ibrahim OA, Paul S, Gafor HA, Mohd R
    Int Urol Nephrol, 2014 Jun;46(6):1209-15.
    PMID: 24307428 DOI: 10.1007/s11255-013-0615-8
    PURPOSE: Cardiovascular disease is the leading cause of mortality in dialysis patients with left ventricular hypertrophy (LVH) being an important predictor of mortality. We wanted to determine the prevalence of LVH in peritoneal dialysis (PD) patients and factors contributing to it.

    METHODS: This is a cross-sectional study assessing LVH using echocardiogram in PD patients. Left ventricular mass index (LVMI) was calculated to determine LVH. Chronic fluid overload (overhydration) was assessed using the body composition monitor, and blood pressure (BP) was measured using 24-h ambulatory BP monitoring.

    RESULTS: Thirty-one patients (21 females:10 males, 48.97 ± 14.50 years and dialysis vintage 40.0 ± 28.9 months) were studied. More than two-thirds (77.4 %) were hypertensive, and a third (35.5 %) were diabetic. Baseline data included mean serum albumin (37.34 ± 4.43 g/l), weekly Kt/V (2.02 ± 0.23), residual renal function of 68 (0-880) ml and ultrafiltration of 1,606.9 ± 548.6 ml. Majority of patients (80.6 %) had LVH on echocardiogram with LVMI of 136.5 ± 37.8 g/m(2) and overhydration of 2.23 ± 1.77 l. Average systolic BP, diastolic BP and mean arterial pressure were 141.2 ± 23.3, 90.8 ± 19.7 and 107.6 ± 19.6 mmHg, respectively. Patients with LVH had a lower serum albumin (p = 0.003), were more overhydrated (p = 0.010) and were on higher number of anti-hypertensive agents (p ≤ 0.001). Predictors of LVMI were overhydration (p = 0.002), the presence of diabetes (p = 0.008) and the number of anti-hypertensive agents used (p = 0.026). However, overhydration (p = 0.007) was the main predictor of LVH on multivariate analysis.

    CONCLUSION: Overhydration is strongly associated with LVH in PD patients.

    Matched MeSH terms: Ultrasonography
  5. Bukar MM, Yusoff R, Haron AW, Dhaliwal GK, Khan MA, Omar MA
    Trop Anim Health Prod, 2012 Oct;44(7):1505-11.
    PMID: 22461200 DOI: 10.1007/s11250-012-0095-3
    The effects of different estrus synchronization techniques on follicular development and estrus response were studied in 81 nulliparous Boer does. The does were divided into nine groups. Eight of the nine groups were synchronized with prostaglandin F2-alpha (PGF(2α)) or flugestone acetate (FGA) or their combinations, and the ninth group was a control group. In addition to the above combinations, four of the eight synchronized groups were given 5 mg follicle-stimulating hormone (FSH) and the remaining four groups were administered 300 IU equine chorionic gonadotrophin (eCG). Posttreatment follicular development was monitored until ovulation occurred using a real-time B-mode ultrasound scanner (Aloka, 500 SSD, Japan), with a 7.5-MHz transrectal linear probe. All the does from the synchronized groups that were given eCG exhibited oestrus while only 88.9% of the does synchronized with FSH showed estrus. The estrus response was observed to be the least among the does synchronized with PGF(2α) + FSH (33.3%) combination followed closely by the FGA + FSH (42.9%) combinations. It was observed that the combinations of FGA + PGF(2α) + FSH resulted in increased percentage of estrus response, duration of estrus, and ovulation. The number of follicles was higher (P < 0.05) in FSH-synchronized groups than the eCG-synchronized groups. It was concluded that the best estrus synchronization protocol in goats is the FGA + eCG with or without PGF(2α). However, the PGF(2α) + FGA + FSH method of estrus synchronization is the most promising combination for further development as a better alternative to estrus synchronization with eCG in does.
    Matched MeSH terms: Ultrasonography
  6. Marina MB, Sani A, Hamzaini AH, Hamidon BB
    J Laryngol Otol, 2008 Jun;122(6):609-14.
    PMID: 17640435
    Dribbling (sialorrhoea) affects about 10 per cent of patients with chronic neurological disease. The variety of treatments currently available is unsatisfactory. This study was a clinical trial of the efficacy of ultrasound-guided, intraglandular injection of botulinum toxin A for dribbling, performed within the otorhinolaryngology department of the National University of Malaysia. Both pairs of parotid and submandibular glands received 25 U each of botulinum toxin A. Twenty patients were enrolled in the study. The median age was 15 years. All 20 patients (or their carers) reported a distinct improvement in symptoms after injection. Using the Wilcoxon signed rank test, there were significant reductions in dribbling rating score, dribbling frequency score, dribbling severity score, dribbling visual analogue score and towel changes score, comparing pre- and post-injection states (p<0.001). There were no complications or adverse effects during or after the injection procedure. Intraglandular, major salivary gland injection of botulinum toxin A is an effective treatment to reduce dribbling. Ultrasound guidance enhances the accuracy of this procedure and minimises the risk of complication.
    Matched MeSH terms: Ultrasonography, Interventional
  7. Trutnovsky G, Kamisan Atan I, Martin A, Dietz HP
    BJOG, 2016 Aug;123(9):1551-6.
    PMID: 26435045 DOI: 10.1111/1471-0528.13692
    OBJECTIVE: To analyse the associations between delivery mode and symptoms and signs of pelvic organ prolapse (POP) in a cohort of symptomatic women.

    DESIGN: Retrospective observational study.

    POPULATION: A total of 1258 consecutive women attending a tertiary urogynaecological unit for the investigation of lower urinary tract or pelvic floor disorders between January 2012 and December 2014.

    METHODS: Obstetric history and clinical examination data were obtained from the unit database. Prolapse quantification on imaging was performed using stored four-dimensional translabial ultrasound volume data sets. Women were grouped into four groups according to the most traumatic delivery reported. The presence of symptoms and signs of POP were compared between delivery groups while controlling for potential confounders.

    MAIN OUTCOME MEASURES: Prolapse symptoms, visual analogue score for prolapse bother, International Continence Society Prolapse Quantification System findings and ultrasound findings of anterior, central and posterior compartment descent.

    RESULTS: Nulliparae showed the lowest prevalence of most measures of POP, followed by women exclusively delivered by caesarean section. Highest prevalences were consistently found in women delivered at least once by forceps, although the differences between this group and women delivered by normal vaginal delivery and/or vacuum extraction were significant in three out of eight measures only. Compared with women in the caesarean section group, the adjusted odds ratios for reporting symptoms of prolapse were 2.4 (95% CI 1.30-4.59) and 3.2 (95% CI 1.65-6.12) in the normal vaginal delivery/vacuum extraction group and forceps group, respectively.

    CONCLUSIONS: There is a clear link between vaginal delivery and symptoms and signs of pelvic organ prolapse in urogynaecological patients.

    TWEETABLE ABSTRACT: Compared with caesarean section a history of vaginal delivery more than doubles the risk for POP.

    Matched MeSH terms: Ultrasonography
  8. Cheah FC, Boo NY, Rohana J, Yong SC
    J Paediatr Child Health, 2001 Oct;37(5):479-82.
    PMID: 11885713
    OBJECTIVE: To determine whether intravenous infusion of low dose of streptokinase was effective in lysing umbilical arterial catheter (UAC)-associated aortic thrombi.

    METHOD: A prospective cohort study of 31 consecutive newborn infants with UAC-associated aortic thrombi which were detected by abdominal ultrasonography after removal of UAC. Twenty-two infants were treated with intravenous infusion of low dose (1000 U/h) streptokinase, while nine others were not treated due to various contra-indications. Thrombolysis occurred after a mean interval of 2.2 days (standard deviation (SD) = 1.8) in the treated infants. In the untreated infants, spontaneous thrombolysis occurred significantly later, after a mean interval of 16.9 days (SD = 14.7) (95% confidence intervals of difference between mean intervals - 26.0, - 3.4; P = 0.02). Only one treated infant developed mild bleeding directly attributed to streptokinase therapy.

    CONCLUSION: Low dose streptokinase infusion was effective and safe in thrombolysing UAC-associated aortic thrombi.

    Matched MeSH terms: Ultrasonography
  9. Teoh MK, Ramasamy D, Wong KP
    Aust N Z J Surg, 1992 Nov;62(11):862-5.
    PMID: 20169704
    Ultrasound examination of the abdominal aorta was performed on 100 patients with cardiovascular disease and a control group of 100 subjects. The objectives were to define the normal aortic size of Malaysians, to screen for aneurysms and to compare the aorta size of the different population groups. In the study group the mean anteroposterior (AP) diameter of the non-aneurysmal aortas at the level of the renal arteries was 1.82 cm (range 0.9-2.6 cm) in men and 1.83 cm (range 1.5-2.3 cm) in women. This compares with 1.61 cm (range 1.1-2.2 cm) in men and 1.50 cm (range 0.8-2.4 cm) in women in the control group. The dimensions of the infrarenal aorta show a similar relationship between the two groups. These AP diameters were significantly smaller than the published figures from studies done on Western populations and are consistent with the smaller stature of Malaysians. Five aneurysms and one ectasia were found (mean size 5 cm, range 3.5-6.0 cm), all in men aged 50-75 years in the study group, and none in the control group. All the aneurysms were easily palpable in these patients who were thinner than the average Caucasian. Given the lower incidence of aortic aneurysms in Malaysians there is no role for routine ultrasound screening of the population. High risk groups can be adequately screened by clinical examination alone.
    Matched MeSH terms: Ultrasonography
  10. Kamisan Atan I, Lai SK, Langer S, Caudwell-Hall J, Dietz HP
    Int Urogynecol J, 2019 06;30(6):917-923.
    PMID: 30741317 DOI: 10.1007/s00192-019-03887-z
    INTRODUCTION AND HYPOTHESIS: Forceps delivery and length of second stage are risk factors of maternal birth trauma, i.e., levator ani muscle (LAM) avulsion and anal sphincter trauma. The cesarean section (CS) rate has recently become the key performance indicator because of its increase worldwide. Attempts to reduce CS rates seem to have led to an increase in forceps deliveries and longer second stages. This study aimed to determine the association between variations in obstetric practice (between hospitals) and maternal birth trauma.

    METHODS: This was a retrospective ancillary analysis involving 660 nulliparous women carrying an uncomplicated singleton term pregnancy in a prospective perinatal intervention trial at two Australian tertiary obstetric units. They had been seen antenatally and at 3-6 months postpartum for a standardized clinical assessment between 2007 and 2014. Primary outcome measures were sonographically diagnosed LAM and external anal sphincter (EAS) trauma.

    RESULTS: The incidence of LAM avulsion (11.5% vs. 21.3%, P = 0.01) and composite trauma, i.e., LAM avulsion ± EAS injury (29.2% vs. 39.7%, P = 0.03) were higher in one of the two hospitals, where the forceps delivery rate was also higher (10.9% vs. 2.6%, P 

    Matched MeSH terms: Ultrasonography
  11. Ong SCL, Alemam MMM, Zakaria NA, Abdul Halim NA
    BMJ Case Rep, 2017 Oct 19;2017.
    PMID: 29054959 DOI: 10.1136/bcr-2017-222342
    Melioidosis is endemic in Southeast Asia and tropical Australia with varying clinical features from benign skin lesions to fatal septicaemia. Imaging plays an important role in evaluation of the melioid liver abscesses. A 45-year-old man with underlying diabetes presented with fever and lethargy for 2 weeks and abdominal pain for 2 days. His liver was enlarged on examination. Blood investigations revealed mild leucocytosis and raised liver enzymes. Ultrasound showed multiple multiloculated hypoechoic lesions throughout the liver and spleen. CT of abdomen confirmed that some liver lesions were made up of asymmetric locules of varying sizes (honeycomb sign), while others had hypodense centre with small symmetric peripheral locules in radial fashion (necklace sign). Blood culture was positive for Burkholderia pseudomallei He was subsequently treated with ceftazidime for a month followed by oral trimethoprim-sulfamethoxazole for 3 months. Follow-up CT of abdomen a month after diagnosis and treatment showed resolving hepatic and splenic lesions.
    Matched MeSH terms: Ultrasonography
  12. Wasenda EJ, Kamisan Atan I, Subramaniam N, Dietz HP
    Menopause, 2017 Oct;24(10):1185-1189.
    PMID: 28538602 DOI: 10.1097/GME.0000000000000898
    OBJECTIVE: To determine the effect of hormone therapy (HT) use on pelvic organ support.

    METHODS: A retrospective observational study involving postmenopausal women with pelvic floor dysfunction attending a tertiary urogynecology center between January 2012 and March 2015. All underwent a clinical examination including International Continence Society Pelvic Organ Prolapse Quantification and 4D translabial ultrasound imaging. Information on current or former use of systemic HT and current local estrogen use was collected. Main outcome measure was pelvic organ support.

    RESULTS: One thousand four hundred forty-three women were seen during the study period. On univariate analysis, current HT was significantly associated with sonographically determined descent of the rectal ampulla (β [95% confidence interval] 3.4 mm [0.4-6.5], P = 0.03) and Gh + Pb (-0.45 mm [-0.8 to -0.1], P = 0.005). Past HT use, duration of HT use, or current vaginal estrogen use was not associated with pelvic organ support. On multivariate analysis controlling for age, parity, body mass index, history of forceps delivery, and avulsion, the association between current HT on the one hand and Gh + Pb as well as increased descent of the rectal ampulla on ultrasound, remained significant (P = 0.008 and P = 0.012, respectively).

    CONCLUSION: HT may have a minor negative effect on pelvic organ support; however, the effect is likely too small to be clinically relevant.

    Matched MeSH terms: Ultrasonography
  13. A Hamid MS, Mohamed Ali MR, Yusof A, George J
    BMC Musculoskelet Disord, 2012 Aug 06;13:138.
    PMID: 22866670 DOI: 10.1186/1471-2474-13-138
    BACKGROUND: Muscle injuries are one of the commonest injuries affecting athletes. It often leads to significant pain and disability causing loss of training and competition time. With current treatment, the duration to return-to-play ranges form six weeks to never, depending on injury severity. Recent researches have suggested that autologous platelet-rich plasma (PRP) injection into the injured site may hasten soft tissues healing. To-date, there has been no randomised clinical trials to evaluate the effects of PRP on muscle healing. The aim of this study is to examine the effects of autologous PRP on duration to return-to-play after muscle injury.

    METHODS AND DESIGN: A randomised, single blind controlled trial will be conducted. Twenty-eight patients aged 18 years and above with a recent grade-2 hamstring injury will be invited to take part. Participants will be randomised to receive either autologous PRP injection with rehabilitation programme, or rehabilitation programme only. Participants will be followed up at day three of study and then weekly for 16 weeks. At each follow up visit, participants will be assessed on readiness to return-to-play using a set of criteria. The primary end-point is when participants have fulfilled the return-to-play criteria or end of 16 weeks.The main outcome measure of this study is the duration to return-to-play after injury.

    CONCLUSION: This study protocol proposes a rigorous and potential significant evaluation of PRP use for grade-2 hamstring injury. If proven effective such findings could be of great benefit for patients with similar injuries.

    TRIAL REGISTRATION: Current Controlled Trials ISCRTN66528592.

    Matched MeSH terms: Ultrasonography, Interventional
  14. Peyman M, Tai LY, Khaw KW, Ng CM, Win MM, Subrayan V
    Int Ophthalmol, 2015 Oct;35(5):651-5.
    PMID: 25189684 DOI: 10.1007/s10792-014-9989-6
    To assess the intra-observer repeatability and inter-observer reproducibility of central corneal thickness (CCT) measurements of PachPen (Accutome, Inc., Pennsylvania, USA), a hand-held, portable ultrasonic pachymeter when used by an ophthalmic nurse compared to an ophthalmologist. Ophthalmology Clinic, University of Malaya Medical Center In this prospective study, CCT was measured in 184 eyes of 92 healthy subjects, first by a corneal surgeon experienced in ultrasound pachymetry (Observer 1) followed by an ophthalmic nurse new to the procedure (Observer 2). Nine measurements were obtained from each eye by each observer, independently. Measurements were compared between the observers. Coefficients of repeatability and reproducibility were calculated. The Bland-Altman plot was used to assess agreement between observers. Mean age of the study population was 54.3 ± 15.2 years old and consisted of 43.5% male. Mean CCT as measured by Observers 1 and 2 were 528.3 ± 32.9 and 530.7 ± 33.3 µm, respectively. Observer 1 showed higher repeatability of measurements compared to that of Observer 2 (coefficient of repeatability 3.46 vs. 5.55%). The measurements by both observers showed high correlation (0.96) and good agreement (mean difference -2.4 µm; 95% limits of agreement -21.4, 16.7 µm). Coefficient of reproducibility of measurements between observers was 5.08%. Accutome PachPen hand-held ultrasound pachymeters gives excellent intra-observer repeatability and inter-observer reproducibility by personnel of different training grades.
    Matched MeSH terms: Ultrasonography
  15. Sivanesaratnam V
    J Obstet Gynaecol Res, 2009 Jun;35(3):393-404.
    PMID: 19527374 DOI: 10.1111/j.1447-0756.2009.01049.x
    Ovarian cancer is today the most lethal female cancer with an overall survival of only 49.9%. The currently available screening modalities are disappointing in detecting highly curable early stage ovarian cancer. Natural history of ovarian cancer is unknown; it appears it can develop quickly from normal looking ovaries. Timely referral of women with non-specific symptoms (such as abdominal bloating, pelvic pain) for an ultrasound scan or blood CA125 assessments may help in the early diagnosis. Patients with Stage IA or IB disease with grade 1 tumors have a cure rate of >90%; this is likely to be compromised by laparoscopic surgery. In selected patients fertility preservation with good obstetric outcome is possible. However, the relapse rate in 'high risk' early stage ovarian cancers is 40-45%; adjuvant chemotherapy is needed. Only 20-25% of those with stage III and IV disease are cured. Despite a high primary response (70%) majority (70-75%) will relapse and all are likely to succumb. Optimal debulking surgery followed by adjuvant chemotherapy are needed for stages III and IV disease; the outcome is superior if managed by gynecologic oncologists. Where cost of drugs is an important consideration, an alternative is carboplatin (an affordable and equally effective drug). The role of vaccines needs further study. When relapses occur palliation will be the aim in most instances. Oral contraceptives, breast feeding, tubal sterilization and hysterectomy also have a protective effect. Risk-reducing salpingo-oopherectomy has been suggested in women with BRCA mutations.
    Matched MeSH terms: Ultrasonography
  16. Ho JJ, Thong MK, Nurani NK
    Aust N Z J Obstet Gynaecol, 2006 Feb;46(1):55-7.
    PMID: 16441696
    We studied 253 women with a pregnancy complicated by a birth defect and 506 controls to determine the frequency and type of prenatal tests and the types of defects detected antenatally. Most women had at least one ultrasound examination, but the frequency of other screening tests was low. Only 38 (15%) of defects were detected antenatally (37 by ultrasound). Birth prevalence is unlikely to be affected by pregnancy termination.
    Matched MeSH terms: Ultrasonography, Prenatal
  17. Majedah S, Alhabshi I, Salim S
    BMJ Case Rep, 2013;2013.
    PMID: 23417932 DOI: 10.1136/bcr-2012-007961
    Matched MeSH terms: Ultrasonography, Mammary
  18. Lau CP, Abdul-Wahab MF, Jaafar J, Chan GF, Abdul Rashid NA
    J Microbiol Immunol Infect, 2017 Aug;50(4):427-434.
    PMID: 26427880 DOI: 10.1016/j.jmii.2015.08.004
    BACKGROUND/PURPOSE: Currently, silver nanoparticles (AgNPs) have gained importance in various industrial applications. However, their impact upon release into the environment on microorganisms remains unclear. The aim of this study was to analyze the effect of polyvinylpyrrolidone-capped AgNPs synthesized in this laboratory on two bacterial strains isolated from the environment, Gram-negative Citrobacter sp. A1 and Gram-positive Enterococcus sp. C1.

    METHODS: Polyvinylpyrrolidone-capped AgNPs were synthesized by ultrasound-assisted chemical reduction. Characterization of the AgNPs involved UV-visible spectroscopy, Fourier transform infrared spectroscopy, X-ray diffraction, transmission electron microscopy, and energy dispersive X-ray spectroscopy. Citrobacter sp. A1 and Enterococcus sp. C1 were exposed to varying concentrations of AgNPs, and cell viability was determined. Scanning electron microscopy was performed to evaluate the morphological alteration of both species upon exposure to AgNPs at 1000 mg/L.

    RESULTS: The synthesized AgNPs were spherical in shape, with an average particle size of 15 nm. The AgNPs had different but prominent effects on either Citrobacter sp. A1 or Enterococcus sp. C1. At an AgNP concentration of 1000 mg/L, Citrobacter sp. A1 retained viability for 6 hours, while Enterococcus sp. C1 retained viability only for 3 hours. Citrobacter sp. A1 appeared to be more resistant to AgNPs than Enterococcus sp. C1. The cell wall of both strains was found to be morphologically altered at that concentration.

    CONCLUSION: Minute and spherical AgNPs significantly affected the viability of the two bacterial strains selected from the environment. Enterococcus sp. C1 was more vulnerable to AgNPs, probably due to its cell wall architecture and the absence of silver resistance-related genes.

    Matched MeSH terms: Ultrasonography
  19. Oversand SH, Atan IK, Shek KL, Dietz HP
    Int Urogynecol J, 2015 Dec;26(12):1777-81.
    PMID: 26249237 DOI: 10.1007/s00192-015-2793-7
    INTRODUCTION AND HYPOTHESIS: We aimed to compare palpatory and translabial ultrasound (TLUS) measurements of pelvic floor muscle (PFM) function with symptoms and signs of female pelvic organ prolapse (FPOP) to determine a possible association.

    METHODS: We analysed data from 726 women with a mean age of 56 (SD 13.7, range 18-88) years, seen for symptoms of pelvic floor dysfunction between August 2011 and April 2013. The examination included a standardised interview and clinical assessment of FPOP with Pelvic Organ Prolapse Quantification (POP-Q) measurements, Modified Oxford Scale (MOS) grading and 4D TLUS.

    RESULTS: Symptoms of prolapse were reported in 51.4% (373 out of 726) with a mean bother score of 5.8 (SD 2.91, range 0-10). A clinically significant POP (Incontinence Society [ICS]-POP-Q stage ≥ 2) in any compartment was diagnosed in 77.1%. Mean MOS was 2.4 (SD 1.1, range 0-5). Significant POP on TLUS was seen in 54.6% (389 out of 712). TLUS volumes at rest and on maximal PFM contraction were analysed on a desktop PC, to assess the degree of bladder neck (BN) cranioventral shift and levator antero-posterior (AP) diameter reduction, blinded against other data. Mean cranioventral BN shift was 7.11 (SD 4.36, range 0.32-25.32) mm and mean levator AP diameter reduction was 8.6 (SD 4.8, range 0.3-31.3) mm. MOS was strongly associated with subjective and objective POP (P ≤ 0.001), whereas this was not true for TLUS measurements of tissue displacement.

    CONCLUSION: The MOS seems to be a more valid measure of PFM function than sonographically determined BN displacement or reduction of hiatal AP diameter observed on PFM contraction.

    Matched MeSH terms: Ultrasonography
  20. Raman S, Teoh T, Nagaraj S
    Int J Gynaecol Obstet, 1996 Aug;54(2):143-7.
    PMID: 9236312
    OBJECTIVES: To study whether there are any differences in growth of the femoral and humeral length between the three major ethnic groups in Malaysia viz Malays, Chinese and Indians. The effect on fetal growth by gender of the baby and parity of the mother was also studied.

    METHODS: The setting was the University of Kuala Lumpur. Thirty-four Malay, 35 Chinese and 34 Indian normal pregnant middle-class women were studied longitudinally by monthly ultrasound scans for 18 to 38 weeks of gestation. The data were subjected to regression analysis; the quadratic curve was found to be the most adequate. Dummy variables were used to determine any effects by gender, parity as well as ethnicity on the length of limb growth. There was no difference in birth weights of the three ethnic groups studied, nor in gender or parity.

    RESULTS: There were found to be significant differences in limb lengths of the Indians (longer) when compared with the Malays and Chinese. Parity seems to affect only Indians in whom the multiparous fetuses have shorter limb lengths than the primaparous. There appears to be no effect by gender.

    CONCLUSION: There appear to be definite differences in growth of limb length between the different Malaysian ethnic groups and this should be taken into account when growth charts are used and when fetal weight formulas are calculated using limb lengths. The limitation of this study was that the numbers of subjects studied were small. Larger studies will be able to confirm or refute the findings.

    Matched MeSH terms: Ultrasonography, Prenatal
Filters
Contact Us

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

External Links