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1.
J Dermatol ; 51(7): 1004-1009, 2024 Jul.
Article in English | MEDLINE | ID: mdl-38700256

ABSTRACT

The objective of our study was to assess the attitudes and behaviors in Japan regarding sun exposure and compare them to those in Europe and North America. The study population was a representative sample of individuals aged >18 years from Ipsos panels in Japan (N = 1000), North America (N = 1000), and Europe (N = 6000) using the quota method. Questionnaires covered habits, practices, and perceptions regarding sun exposure. Results revealed that the majority of people (80.1%) believed that the sun gives them energy, and 61.1% considered that being tanned made them look healthier. However, there was a significant difference between men and women regarding the appeal of tanned skin, with 54.95% of men versus 34.67% (p < 0.001) of women seeing a tan as an aesthetic asset. People aged <40 years were less likely to find a tan attractive (30.3%) compared to those aged ≥40 years (48.9%) (p < 0.001). Of those questioned, 45.70% of used sunscreen with a much higher use among women (70.10%) than men (18.74%) (p < 0.001). Almost 54% of people said they stayed in the shade to protect themselves from the sun with this behavior being more prevalent among women (67.05%) and fair-skinned individuals (56.13%). Fear of the risks of sun exposure was more common among women, with 84.8% fearing premature skin aging, compared to 71.8% of men (p < 0.001). In Japan, 44.30% of those questioned said tanned skin was attractive (p < 0.001); for Europeans and North Americans the proportions were 81.1% and 77.6%, respectively. Only a quarter (25.80%) thought it essential to return from vacation with a tan. On the other hand, Europeans showed a strong recognition of the energy the sun brings (83.18%), and widely believed that tanned skin is attractive (82.32%) and healthy (73.15%). In North America, attitudes were similar to those in Europe regarding the attractiveness of tanned skin (77.65%) and the importance of returning tanned from vacation (48.15%). Compared to Europeans and North Americans, the Japanese seemed to be more cautious about sun-induced hazards and considered lighter skin to be more attractive.


Subject(s)
Health Knowledge, Attitudes, Practice , Sunlight , Sunscreening Agents , Humans , Female , Male , Adult , Japan/epidemiology , Europe , North America/epidemiology , Middle Aged , Sunlight/adverse effects , Sunscreening Agents/administration & dosage , Surveys and Questionnaires , Young Adult , Sunbathing/statistics & numerical data , Sunbathing/psychology , Adolescent , Aged , Sex Factors , Health Behavior
4.
Med J Malaysia ; 78(6): 733-742, 2023 Nov.
Article in English | MEDLINE | ID: mdl-38031214

ABSTRACT

INTRODUCTION: The incidence of acute kidney injury (AKI) among hospitalised patients has not been well studied in Malaysia. MATERIALS AND METHODS: We conducted a prospective, multicentre study in seven hospitals in West Malaysia. All the adults admitted in March 2017 fulfilling Kidney Disease Improving Global Outcomes (KDIGO) criteria for AKI were included. RESULTS: Of the 34,204 patients screened, 2,457 developed AKI (7.18%), 13.1% of which occurred in intensive care unit (ICU). There were 60.2% males with a mean age of 57.8 (±17.5) years. The most common comorbidities were hypertension (55.0%), diabetes (46.6%), ischaemic heart disease (15.1%) and chronic kidney disease (12.0%). The commonest causes of AKI were sepsis (41.7%), pre-renal (24.2%) and cardiorenal syndrome (10.8%). Nephrotoxin exposure was reported in 31%. At diagnosis, the proportion of AKI stages 1, 2 and 3 were 79.1%, 9.7%, 11.2%, respectively. Referral to nephrologists was reported in 16.5%. Dialysis was required in 176 (7.2%) patients and 55.6% were performed in the ICU. Acidosis (46.2%), uraemia (31.6%) and electrolyte disturbance (11.1%) were the commonest indications. Continuous renal replacement therapy (CRRT) was required in 14%. The average length of hospital stay was 9.5 days. In-hospital mortality was 16.4%. Among survivors, full and partial renal recovery was seen in 74.7% and 16.4% respectively while 8.9% failed to recover. After a mean follow-up of 13.7 months, 593 (30.2%) of survivors died and 38 (1.9%) initiated chronic dialysis. Mortality was highest among those with malignancies (Hazard Ratio, HR 2.14), chronic liver disease (HR 2.13), neurological disease (HR 1.56) and cardiovascular disease (HR 1.17). CONCLUSION: AKI is common in hospitalised patients and is with associated high mortality during and after hospitalisation.


Subject(s)
Acute Kidney Injury , Adult , Female , Humans , Male , Middle Aged , Acute Kidney Injury/epidemiology , Acute Kidney Injury/etiology , Acute Kidney Injury/therapy , Incidence , Kidney , Malaysia/epidemiology , Prospective Studies , Retrospective Studies , Risk Factors , Aged
5.
Cerebrovasc Dis ; 2023 Jul 29.
Article in English | MEDLINE | ID: mdl-37517392

ABSTRACT

OBJECTIVE: In ischemic stroke patients, we compared the use of insertable cardiac monitor (ICM) versus non-ICM methods of cardiac monitoring on the incidence of atrial fibrillation (AF) detection and other clinical outcomes. BACKGROUND: Current guidelines recommend the routine use of 12-lead electrocardiography or Holter monitoring for AF detection after ischemic stroke. Recent randomised controlled trials have investigated the impact of ICM versus non-ICM methods of cardiac monitoring for AF detection in this population. However, precise recommendations for monitoring post-stroke AF are lacking; including the optimal timing, duration, and method of electrocardiography monitoring. METHODS: A systematic search was conducted on Embase and PubMed from database inception until 27 October 2022 to include randomised controlled trials that compared ICM with non-ICM methods of cardiac monitoring for post-stroke AF detection. This yielded 3 randomised controlled trials with a combined cohort of 1231 patients with a recent ischemic stroke. Individual patient data (IPD) was then reconstructed from Kaplan-Meier curves and analysed using the shared-frailty Cox model. An aggregate data meta-analysis was conducted for 1231 patients across all 3 studies for outcomes that could not be reconstructed using IPD. RESULTS: One-stage meta-analysis demonstrated an increase in the hazard ratio (HR 6.01, 95% CI 3.40-10.60; p<0.001) of AF detection in patients undergoing monitoring via ICM compared to standard care. Aggregate data meta analysis revealed a significant increase in initiation of anticoagulation (OR 3.09, 95% CI 2.05 - 4.66; p<0.00001) in the ICM group. However, no significant differences in the incidence of recurrent ischemic stroke, transient ischemic attack or death were found. CONCLUSIONS: In this meta-analysis, we found that the use of ICM increased the detection rate of post-stroke AF and the rate of anticoagulation initiation. However, this did not translate into a reduced incidence of recurrent ischemic stroke.

7.
Malays J Pathol ; 43(3): 453-456, 2021 Dec.
Article in English | MEDLINE | ID: mdl-34958067

ABSTRACT

INTRODUCTION: Meningiomas are common and usually benign central nervous system neoplasms. These neoplasms are graded into three groups which differ in biological behaviour. Atypical meningioma is an intermediate grade (Grade 2) tumour that is rarely associated with metastases compared to higher grade (Grade 3) meningiomas. CASE REPORT: A 68-year-old lady with a history of multiple craniotomies and hemifacial resections for meningothelial meningioma currently underwent orbital exenteration, tumour debulking and cervical nodal excision for tumour recurrence. Histopathological examination of the tumour showed atypical meningioma, with cervical nodal metastasis. DISCUSSION: This case report presents a rare finding of lymph node metastasis associated with atypical meningioma. The previous history of surgical resection is a known risk factor for metastasis for low to intermediate grade meningioma. Tumour biology and histology are predictors of metastasis. Haematogenous dissemination is the commonest route of metastasis. No standardised management protocol has been developed and the prognosis remains unknown.


Subject(s)
Brain Neoplasms , Meningeal Neoplasms , Meningioma , Aged , Female , Humans , Meningeal Neoplasms/pathology , Meningeal Neoplasms/surgery , Meningioma/pathology , Meningioma/secondary , Meningioma/surgery , Neoplasm Recurrence, Local , Prognosis
8.
J Eur Acad Dermatol Venereol ; 35(7): 1460-1469, 2021 Jul.
Article in English | MEDLINE | ID: mdl-33764577

ABSTRACT

Increasing evidence on the impact of the different wavelengths of sunlight on the skin demonstrates the need for tailored recommendations of sunscreen according to skin phototype and dermatoses, which is now possible due to advances in the filters and formulations of sunscreens. A selective literature search was performed by an international expert panel, focusing on the type of sunscreen to recommend for photoaging, skin cancers, photodermatoses, pigmentary disorders and skin inflammatory disorders. Protection against ultraviolet (UV)B is especially important for light skin as there is a high risk of sunburn, DNA damage and skin cancers. Darker skin may be naturally better protected against UVB but is more prone to hyperpigmentation induced by visible light (VL) and UVA. Protection against UVA, VL and infrared A can be helpful for all skin phototypes as they penetrate deeply and cause photoaging. Long-wave UVA1 plays a critical role in pigmentation, photoaging, skin cancer, DNA damage and photodermatoses. Adapting the formulation and texture of the sunscreen to the type of skin and dermatoses is also essential. Practical recommendations on the type of sunscreen to prescribe are provided to support the clinician in daily practice.


Subject(s)
Skin Neoplasms , Sunburn , Humans , Skin Neoplasms/drug therapy , Skin Neoplasms/prevention & control , Sunlight , Sunscreening Agents/therapeutic use , Ultraviolet Rays/adverse effects
9.
J Eur Acad Dermatol Venereol ; 35(3): 589-596, 2021 Mar.
Article in English | MEDLINE | ID: mdl-32894602

ABSTRACT

The COVID-19 pandemic has enveloped the world and there has been a high incidence of occupational dermatoses related to Personal Protective Equipment (PPE) amongst healthcare workers (HCWs) during this period. Prevention and management of these conditions will not only improve staff morale and quality of life, but will also minimize the risk of breaching PPE protocol due to such symptoms. The tropical climate in Singapore predisposes HCWs to more skin damage and pruritus due to intense heat, high humidity and sun exposure. The effects of friction, occlusion, hyperhidrosis and overheating on the skin in the tropics should not be neglected. Preventive measures can be taken based on our recommendations, and the working environment can be made more conducive for frontline HCWs. We review the literature and discuss various preventive and management strategies for these occupational skin diseases for our frontline HCWs, especially those working in less controlled working environments beyond the hospital in Singapore. Shorter shifts and frequent breaks from PPE are recommended. Duration of continuous PPE-usage should not exceed 6 h, with breaks in non-contaminated areas every 2-3 h to hydrate and mitigate the risk of skin reactions. Other strategies, such as teledermatology, should be considered so that consultations can remain accessible, while ensuring the safety and well-being of our clinical staff.


Subject(s)
COVID-19/epidemiology , Health Personnel , Occupational Exposure , Pandemics , Personal Protective Equipment/adverse effects , Skin Diseases/etiology , Tropical Climate , COVID-19/virology , Humans , Incidence , SARS-CoV-2/isolation & purification , Singapore/epidemiology , Skin Diseases/epidemiology
10.
Med J Malaysia ; 75(6): 666-671, 2020 11.
Article in English | MEDLINE | ID: mdl-33219175

ABSTRACT

INTRODUCTION: Chiari malformation (CM) is a disorder of mesodermal origin and is commonly associated with syringomyelia. Foramen magnum decompression is the first-line of standard treatment in symptomatic patients with a confirmed radiographic diagnosis. Magnetic resonance (MR) cine allows accurate evaluation of cerebrospinal fluid (CSF) physiology at the craniovertebral junction but often this is under-utilised in Malaysia. METHODS: In this series, we looked into nine cases of CM with syringomyelia from clinical and radiological perspective before and after surgery. The radiological parameters were herniated tonsillar length, syrinx: cord ratio, syrinx length and diameter. Flow velocity and morphologic changes in Chiari were illustrated. RESULTS: Seven patients showed either reduction in syrinx length, syrinx: cord ratio or both postoperatively. Clinical recovery somewhat varied in motor and sensory symptoms. Four patients gained better functional grade in modified Rankin scale (MRS) while the rest remained similar. The study highlighted the advantage of CSF flow dynamics information over MR anatomical radiographic improvement in addressing the neurologic and functional recovery. We also discussed the practicality of cine sequence in preoperative patient selection, syrinx analysis and postoperative flow evaluation in anticipation of clinical outcome. CONCLUSION: Phase-contrast cine MRI is a useful tool dictated by resource availability. We recommend its routine use in preoperative analysis and subsequent observational follow-up after surgery.


Subject(s)
Arnold-Chiari Malformation , Syringomyelia , Arnold-Chiari Malformation/complications , Arnold-Chiari Malformation/diagnostic imaging , Arnold-Chiari Malformation/surgery , Decompression, Surgical , Foramen Magnum/diagnostic imaging , Foramen Magnum/surgery , Humans , Magnetic Resonance Imaging , Magnetic Resonance Spectroscopy , Syringomyelia/complications , Syringomyelia/diagnostic imaging , Syringomyelia/surgery , Treatment Outcome
11.
Acta Virol ; 64(1): 28-35, 2020.
Article in English | MEDLINE | ID: mdl-32180416

ABSTRACT

In this study, we identified the genome sequence of the novel virus Pistacia-associated flexivirus 1 (PAFV1), a putative member of the mycovirus family Gammaflexiviridae (the order Tymovirales), via analysis of a transcriptome dataset for the mastic tree (Pistacia lentiscus, the family Anacardiaceae). PAFV1 was predicted to have three open reading frames (ORFs): ORF1, encoding a replicase (REP) with RNA-dependent RNA polymerase activity; ORF2, a movement protein (MP); and ORF3, a hypothetical protein. The PAFV1 REP sequence showed high similarity to those of three known members of the family Gammaflexiviridae i.e., Entoleuca gammaflexivirus 1 (EnFV1), Entoleuca gammaflexivirus 2 (EnFV2), and Botrytis virus F (BVF). A genome contig of the fungus Monosporascus cannonballus also contained a sequence of an endogenous virus similar to that of PAFV1. Sequence comparison and phylogenetic analysis indicated that PAFV1, EnFV1, and the endogenous virus of M. cannonballus formed a distinct subgroup (apart from EnFV2 and BVF), and may be the founding members of a novel genus in the family Gammaflexiviridae. Notably, MP sequences of PAFV1/EnFV1 showed similarity to the MP sequences of the mycovirus group called tobamo-like mycoviruses (an unassigned taxon), implying that genomic recombination occurred between members of the family Gammaflexiviridae and tobamo-like mycoviruses. Since PAFV1 is phylogenetically related to mycoviruses, PAFV1 may also be a mycovirus that infected a fungus associated with the mastic tree sample, which is evidenced by the presence of fungal ribosomal RNA sequences in the mastic tree transcriptome. Thus, the PAFV1 genome sequence may be useful in elucidating the genome evolution of Gammaflexiviridae and tobamo-like mycoviruses. Keywords: Pistacia-associated flexivirus 1; Gammaflexiviridae; mycovirus, mastic tree.


Subject(s)
Flexiviridae/classification , Fungal Viruses/classification , Phylogeny , Pistacia/virology , Flexiviridae/isolation & purification , Fungal Viruses/isolation & purification , Genome, Viral , Open Reading Frames , Transcriptome
12.
Acta Virol ; 64(1): 36-43, 2020.
Article in English | MEDLINE | ID: mdl-32180417

ABSTRACT

The genome sequence of a novel RNA virus, Trichosanthes associated rhabdovirus 1 (TrARV1), was identified in a transcriptome dataset isolated from a root sample of Trichosanthes kirilowii, which is a flowering plant belonging to the family Cucurbitaceae. The fruits, seeds, and root tubers of T. kirilowii have been used clinically in traditional Chinese medicine. The TrARV1 genome sequence was predicted to have six open reading frames (ORFs) encoding five canonical structural proteins of the family Rhabdoviridae (N ORF for nucleocapsid, P ORF for phosphoprotein, M ORF for matrix protein, G ORF for glycoprotein, and L ORF for polymerase), and an accessory protein. Sequence comparisons and phylogenetic analyses based on L and N proteins confirmed that TrARV1 is a novel member of the genus Cytorhabdovirus of the family Rhabdoviridae. TrARV1 is most closely related to Wuhan insect virus 5 and persimmon virus A. The putative cis-regulatory elements involved in transcription termination and polyadenylation, commonly found in the gene junction regions of rhabdoviruses, were also identified in the TrARV1 genome having the consensus sequence 3'- ACUAAAUUAUUUUGAUCUUU-5'. The genome sequence of TrARV1 may be useful to study the evolution and molecular biology of cytorhabdoviruses. Keywords: Trichosanthes associated rhabdovirus 1; Cytorhabdovirus; Rhabdoviridae; Trichosanthes kirilowii.


Subject(s)
Phylogeny , Plant Viruses/classification , Rhabdoviridae/classification , Transcriptome , Trichosanthes/virology , Genome, Viral , Open Reading Frames , Plant Viruses/isolation & purification , Rhabdoviridae/isolation & purification , Viral Proteins/genetics
13.
Gynecol Oncol Rep ; 32: 100538, 2020 May.
Article in English | MEDLINE | ID: mdl-32090165

ABSTRACT

Introduction Dedifferentiated endometrioid adenocarcinoma (DEAC) was first described in 2007. However, it has only been recognised as a distinct subtype of endometrioid adenocarcinoma in the last 1-2 years. DEAC is a more aggressive histological subtype and carries a poorer prognosis. Patients with DEAC tend to present with advanced disease compared the other endometrioid adenocarcinomas. Methodology The study is a retrospective review of patients with DEAC diagnosed in two institutions in Singapore between January 2012 and October 2017. Results 7 patients were diagnosed with DEAC. The mean age was 56.4 years. All patients presented with either abnormal uterine bleeding or post menopausal bleeding. Out of the 7 patients, one was diagnosed with Stage 2 disease, 5 were diagnosed with Stage 3 disease and 1 was diagnosed with Stage 4 disease. One patient had neoadjuvant chemotherapy, followed by surgery, and completion chemotherapy post surgery. The other 6 patients (87.5%) underwent primary debulking surgery. Out of these 6 patients, 5 patients had adjuvant chemotherapy post surgery and one patient had both adjuvant chemotherapy and radiotherapy. Lymphovascular invasion was found in 71.4% of the cases. Conclusion DEAC is a more aggressive histological subtype of endometrioid adenocarcinomas. Better awareness of this condition can lead to proper diagnosis and treatment.

14.
Acta Virol ; 63(4): 366-372, 2019.
Article in English | MEDLINE | ID: mdl-31802679

ABSTRACT

Analysis of a transcriptome dataset obtained from tissue samples of the eelgrass Zostera muelleri, an aquatic flowering plant species of the family Zosteraceae, yielded three genome sequence contigs of a novel RNA virus. Sequence comparison and phylogenetic analysis revealed that the novel RNA virus, named Zostera virus T (ZoVT), belongs to the genus Tepovirus of the family Betaflexiviridae. The three genome contigs of ZoVT showed 88.2‒97.2% nucleotide sequence identity to each other, indicating that they descended from a common ancestor. The ZoVT genome contains three open reading frames (ORFs): ORF1 encodes a 1816 amino acid (aa) replicase (REP) with RNA-dependent RNA polymerase (RdRp) activity; ORF2, a 398 aa movement protein (MP); and ORF3, a 240 aa coat protein (CP). The phylogenetic analysis using REP sequences of ZoVT and other Betaflexiviridae viruses showed that Prunus virus T is the closest known virus to ZoVT, whereas potato virus T, the type species of the genus Tepovirus, is the second closest virus. Genome sequences of ZoVT, which is the third tepovirus species identified to date, may be useful for investigating the evolution and molecular biology of tepoviruses. Keywords: Zostera virus T; Tepovirus; Betaflexiviridae; eelgrass; Zostera muelleri.


Subject(s)
Flexiviridae , Zosteraceae , Flexiviridae/classification , Flexiviridae/genetics , Genome, Viral , Open Reading Frames , Phylogeny , RNA, Viral/genetics , Zosteraceae/virology
15.
Acta Virol ; 63(4): 373-379, 2019.
Article in English | MEDLINE | ID: mdl-31802680

ABSTRACT

Betaflexiviridae is a family of plant-infecting RNA viruses with 11 recognized genera, of which genomes have diverse organization with three to six open reading frames (ORFs). A genome sequence of a novel Betaflexiviridae species, named Salvia divinorum RNA virus 1 (SdRV1), was identified in Salvia divinorum, herbal mint plant with hallucinogenic properties. The SdRV1 genome was predicted to have four ORFs encoding a replicase polyprotein (REP), a movement protein (MP), a coat protein (CP), and a putative nucleic acid-binding protein (NBP). Phylogenetic analyses based on the REP, MP, and CP sequences indicated that SdRV1 is most closely related to members of the genus Citrivirus. However, the genome organization of SdRV1 is the same as that of the genus Prunevirus. Moreover, the SdRV1 NBP had greatest sequence similarity with members of the genus Carlavirus. A complex evolutionary history involving ancestors of these three genera might have resulted in the unique phylogenetic position of SdRV1, which could be considered the founding member of a new genus in the family Betaflexiviridae. The genome sequence of SdRV1 might be useful for studies on the evolution of Betaflexiviridae. Keywords: Salvia divinorum RNA virus 1; Betaflexiviridae; Salvia divinorum.


Subject(s)
Flexiviridae , Salvia , Flexiviridae/classification , Flexiviridae/genetics , Genome, Viral/genetics , Open Reading Frames , Phylogeny , Salvia/virology
16.
Psychiatr Q ; 90(4): 747-760, 2019 12.
Article in English | MEDLINE | ID: mdl-31385123

ABSTRACT

The impact of increased online gaming play time on psychological wellbeing was examined focusing on the Multiplayer Online Battle Arena (MOBA) game genre. This relationship was explored with respect to motivators for playing and resilience factors. A cross-sectional, online questionnaire design was employed with participants (N = 165) to examine the relationship between weekly average hours played and psychological wellbeing. Five previously reported motivators for playing were tested as mediating variables. In addition, exploratory analyses were conducted to determine the moderating effects of self-esteem and self-efficacy on 'escapist' gaming and psychological wellbeing. Results revealed a significant correlation with higher levels of play time associated with poorer psychological wellbeing. This relationship was partially mediated by 'escapist' motivation. Self-esteem was found to moderate the negative impact of 'escapist' gaming on psychological wellbeing. Research and the associated clinical implications are discussed.


Subject(s)
Behavior, Addictive/physiopathology , Behavior, Addictive/psychology , Motivation/physiology , Personal Satisfaction , Resilience, Psychological , Self Concept , Video Games , Adolescent , Adult , Cross-Sectional Studies , Female , Humans , Male , Surveys and Questionnaires , Young Adult
17.
Med J Malaysia ; 74(6): 499-503, 2019 12.
Article in English | MEDLINE | ID: mdl-31929475

ABSTRACT

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.


Subject(s)
Anesthesia, Local/methods , Carpal Tunnel Syndrome/surgery , Neurosurgeons , Neurosurgical Procedures/methods , Pain Management/methods , Adult , Carpal Tunnel Syndrome/diagnosis , Female , Follow-Up Studies , Humans , Male , Middle Aged , Time Factors , Treatment Outcome
19.
Int J Oral Maxillofac Surg ; 48(5): 576-583, 2019 May.
Article in English | MEDLINE | ID: mdl-30594479

ABSTRACT

Bone invasion by oral squamous cell carcinoma necessitates jaw resection, with preoperative imaging ideally able to guide the resection. A retrospective review of 109 patients with oral squamous cell carcinoma who underwent mandibular resection was performed. Eighty-three had preoperative computed tomography (CT) imaging and 72 underwent magnetic resonance imaging (MRI). The presence of bone invasion on imaging was compared to histopathology. Bone invasion was detected in 44 of 109 resection specimens (40.4%) and was identified on CT in 31 of 83 cases (37.4%) and on MRI in 35 of 72 cases (48.6%). The sensitivity and specificity of CT for detecting bone invasion was 69.0% and 79.6%, respectively, while for MRI was 87.1% and 80.5%, respectively. Histological detection of bone invasion was associated with greater disease-specific mortality (P=0.002), as was MRI detection of bone invasion (P=0.027). CT detection was not significant (P=0.240). Negative prediction of bone invasion was 95% accurate for both modalities in clinically non-invaded mandibles. Survival was reduced in patients who underwent marginal mandibular resection when bone invasion was detected histologically (33.3% vs. 70.5%, P=0.277) and with CT, although this was not statistically significant. More data are required to determine whether more aggressive resection is warranted when bone invasion is detected preoperatively.


Subject(s)
Carcinoma, Squamous Cell , Mandibular Neoplasms , Mouth Neoplasms , Humans , Magnetic Resonance Imaging , Mandible , Neoplasm Invasiveness , Retrospective Studies , Sensitivity and Specificity
20.
Malays Fam Physician ; 13(2): 10-18, 2018.
Article in English | MEDLINE | ID: mdl-30302178

ABSTRACT

INTRODUCTION: Achieving optimal glycated hemoglobin (HbA1c), blood pressure (BP), and LDL-Cholesterol (LDL-C) in patients mitigates macro- and micro-vascular complications, which is the key treatment goal in managing type 2 diabetes mellitus (T2DM). This study aimed to determine the proportion of patients in an urban community with T2DM and the above modifiable conditions attaining triple vascular treatment goals based on current practice guidelines. METHODS: A questionnaire was distributed to adult Asian patients with dyslipidemia at two primary care clinics (polyclinics) in northeastern Singapore. The demographic and clinical data for this sub-population with both T2DM and dyslipidemia were collated with laboratory and treatment information retrieved from their electronic health records. The combined data was then analyzed to determine the proportion of patients who attained triple treatment goals, and logistic regression analysis was used to identify factors associated with this outcome. RESULTS: 665 eligible patients [60.5% female, 30.5% Chinese, 35% Malays, and 34.4% Indians] with a mean age of 60.6 years were recruited. Of these patients, 71% achieved LDL-C ≤2.6 mmol/L, 70.4% had BP

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