100 results on '"Chong JH"'
Search Results
2. Approach to clinically significant vascular anomalies in children
- Author
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Tanugroho, RR, primary, Wee, LWY, additional, Koh, MJA, additional, and Chong, JH, additional
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- 2021
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3. Factors associated with hypospadias in Asian newborn babies.
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Chong JH, Wee CK, Ho SK, and Chan DK
- Abstract
Aims: Previous studies reported an increasing temporal trend of hypospadias and a significant association with poor intrauterine growth. It remains unclear whether the association relates to birth weight, degree of prematurity or intra-uterine growth. The objective was to study the incidence of hypospadias and to examine the association with various risk factors. Methods: A retrospective case-control study was carried out of infants admitted to a neonatal unit from January 1(st), 1999 to December 31(st), 2005. Results: Of 6538 male live births, 27 (0.41%) infants had hypospadias. Incidence increased from 2.85 per thousand in 1999 to 6.89 per thousand in 2005. Hypospadias occurred significantly more frequently in babies born small for gestational age (SGA), in very low birth weight (VLBW) infants, those born preterm and to mothers with preeclampsia (PET). Logistic regression revealed that VLBW (OR 14.12, CI 5.48-36.39), maternal PET (OR 3.90, CI 1.50-10.14) and SGA (OR 3.23, CI 1.25-8.37) as independent risk factors. Conclusions: Hypospadias is associated with VLBW, maternal PET and poor intra-uterine growth, but not with preterm birth. A rising trend in the incidence of hypospadias was noted in our population of Asian babies, suggesting a universal phenomenon. [ABSTRACT FROM AUTHOR]
- Published
- 2006
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4. Cutaneous cytomegalovirus mimicking mpox in an immunocompromised infant.
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Chong JH, Isa MSB, Koh MJA, and Lee AC
- Abstract
Competing Interests: Competing interests: None declared.
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- 2024
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5. Effect of Cangrelor on Infarct Size in ST-Segment-Elevation Myocardial Infarction Treated by Primary Percutaneous Coronary Intervention: A Randomized Controlled Trial (The PITRI Trial).
- Author
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Bulluck H, Chong JH, Bryant J, Annathurai A, Chai P, Chan M, Chawla A, Chin CY, Chung YC, Gao F, Ho HH, Ho AFW, Hoe J, Imran SS, Lee CH, Lim B, Lim ST, Lim SH, Liew BW, Zhan Yun PL, Ong MEH, Paradies V, Pung XM, Tay JCK, Teo L, Ting BP, Wong A, Wong E, Watson T, Chan MY, Keong YK, Tan JWC, and Hausenloy DJ
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- Humans, Male, Female, Middle Aged, Double-Blind Method, Aged, Platelet Aggregation Inhibitors therapeutic use, Platelet Aggregation Inhibitors administration & dosage, Treatment Outcome, Singapore, Ticagrelor therapeutic use, Ticagrelor administration & dosage, Percutaneous Coronary Intervention, ST Elevation Myocardial Infarction therapy, ST Elevation Myocardial Infarction drug therapy, ST Elevation Myocardial Infarction diagnostic imaging, Adenosine Monophosphate analogs & derivatives, Adenosine Monophosphate therapeutic use, Adenosine Monophosphate administration & dosage
- Abstract
Background: The administration of intravenous cangrelor at reperfusion achieves faster onset of platelet P2Y12 inhibition than oral ticagrelor and has been shown to reduce myocardial infarction (MI) size in the preclinical setting. We hypothesized that the administration of cangrelor at reperfusion will reduce MI size and prevent microvascular obstruction in patients with ST-segment-elevation MI undergoing primary percutaneous coronary intervention., Methods: This was a phase 2, multicenter, randomized, double-blind, placebo-controlled clinical trial conducted between November 2017 to November 2021 in 6 cardiac centers in Singapore. Patients were randomized to receive either cangrelor or placebo initiated before the primary percutaneous coronary intervention procedure on top of oral ticagrelor. The key exclusion criteria included presenting <6 hours of symptom onset; previous MI and stroke or transient ischemic attack; on concomitant oral anticoagulants; and a contraindication for cardiovascular magnetic resonance. The primary efficacy end point was acute MI size by cardiovascular magnetic resonance within the first week expressed as percentage of the left ventricle mass (%LVmass). Microvascular obstruction was identified as areas of dark core of hypoenhancement within areas of late gadolinium enhancement. The primary safety end point was Bleeding Academic Research Consortium-defined major bleeding in the first 48 hours. Continuous variables were compared by Mann-Whitney U test (reported as median [first quartile-third quartile]), and categorical variables were compared by Fisher exact test. A 2-sided P <0.05 was considered statistically significant., Results: Of 209 recruited patients, 164 patients (78%) completed the acute cardiovascular magnetic resonance scan. There were no significant differences in acute MI size (placebo, 14.9% [7.3-22.6] %LVmass versus cangrelor, 16.3 [9.9-24.4] %LVmass; P =0.40) or the incidence (placebo, 48% versus cangrelor, 47%; P =0.99) and extent of microvascular obstruction (placebo, 1.63 [0.60-4.65] %LVmass versus cangrelor, 1.18 [0.53-3.37] %LVmass; P =0.46) between placebo and cangrelor despite a 2-fold decrease in platelet reactivity with cangrelor. There were no Bleeding Academic Research Consortium-defined major bleeding events in either group in the first 48 hours., Conclusions: Cangrelor administered at the time of primary percutaneous coronary intervention did not reduce acute MI size or prevent microvascular obstruction in patients with ST-segment-elevation MI given oral ticagrelor despite a significant reduction of platelet reactivity during the percutaneous coronary intervention procedure., Registration: URL: https://www.clinicaltrials.gov; Unique identifier: NCT03102723., Competing Interests: L.T. is on the Astra Zeneca international advisory board of management of adverse events with the new antibody drug conjugate T-DXd in Asian patients with metastatic breast cancer, Roche Singapore immunotherapy in early stage NSCLC patient journey advisory board. L.T. has received a Philips speaker honorarium in kind and a Siemens Healthineers speaker honorarium. Y.K.K. has received research funding from Amgen, Astra Zeneca, Abbott Vascular, Bayer, Boston Scientific, Shockwave Medical, and Novartis (via institution); consulting fees from Abbott Vascular, Medtronic, Novartis, and Peijia Medical; and speaker fees from Shockwave Medical, Abbott Vascular, Boston Scientific, Medtronic, Alvimedica, Biotronik, Orbus Neich, Amgen, Novartis, Astra Zeneca, Microport, Terumo, and Omnicare. Y.K.K. is also cofounder and owns equity in Trisail, for which OrbusNeich is an investor. D.J.H. has received consultant fees from Faraday Pharmaceuticals Inc and Boehringer Ingelheim International GmbH, honoraria from Servier, and research funding from Astra Zeneca and Merck Sharp & Dohme Corp. C.Y.C. has received speaker fees from Novartis and consultancy fees from Boston Scientific and Philips. The other authors report no conflicts.
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- 2024
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6. Removing grass clippings reduces bermudagrass mite (Acari: Eriophyidae) infestation during turfgrass regrowth.
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Brown MS and Chong JH
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- Animals, Cynodon growth & development, Mites physiology, Mites growth & development
- Abstract
Bermudagrass mite (Aceria cynodoniensis Sayed) infestation stunts bermudagrass (Cynodon spp. [Poales: Poaceae]) growth, leading to thinned turf and lower aesthetic and recreational value. Bermudagrass mites cause characteristic symptoms called witch's brooms, including shortened internodes and leaves and the proliferation of tillers. Grass clippings produced by mowing or scalping bermudagrass harbor mites, which abandon the desiccating grass clippings and spread to surrounding turfgrass. Dropped grass clippings can lead to infestation of new turfgrass. Nursery experiments were conducted with potted bermudagrass to determine the effect of removing witch's brooms or grass clippings after scalping on witch's broom densities on the recovering bermudagrass. Additionally, laboratory experiments were conducted to assess the potential for mites to abandon detached witch's brooms and to evaluate mite survival after leaving their hosts. The number of initial witch's brooms and individually removing witch's brooms did not affect subsequent witch's broom densities, suggesting that infested but asymptomatic terminals later developed into witch's brooms. Removing grass clippings after scalping reduced witch's broom densities by over 65% in two trials. Most mites (96%) abandoned witch's brooms within 48 h after detaching witch's brooms, and adult mites survived an average of 5.6 h after removal from the host plant. Removing clippings after scalping may improve bermudagrass mite management and limit damage on the recovering turfgrass. Additionally, clippings resulting from regular mowing or scalping should be disposed of properly because this study demonstrates that mites abandon desiccating host plants and survive sufficiently long to infest surrounding turfgrass., (© 2024. The Author(s), under exclusive licence to Springer Nature Switzerland AG.)
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- 2024
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7. The cardioprotective potential of sodium-glucose cotransporter 2-inhibitors in breast cancer therapy-related cardiac dysfunction - A systematic review.
- Author
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Chong JH, Chang WT, Chan JJ, Tan TJY, Chan JWK, Wong M, Wong FY, and Chuah CTH
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- Humans, Female, Retrospective Studies, Cardiotoxicity etiology, Cardiotoxicity prevention & control, Trastuzumab adverse effects, Glucose, Sodium, Breast Neoplasms drug therapy, Heart Failure, Diabetes Mellitus, Type 2
- Abstract
Background: Sodium-glucose cotransporter 2-inhibitors (SGLT2i) improve cardiovascular outcomes including reduction in risk of first hospitalisation for heart failure (HF), worsening HF and cardiovascular death regardless of HF or diabetes mellitus (DM) status. It is not known whether SGLT2i can prevent the development of incident HF or reduce the risk of HF in patients receiving trastuzumab with or without other concurrent anti-HER2 agent or sequential anthracycline for treatment of HER2 positive breast cancer. Patients with active malignancy or recent history of malignancy were excluded from participating in the main cardiovascular outcome trials involving SGLT2i., Aim: A systematic review was performed to objectively assess published literature on the cardioprotective effects of SGLT2i in breast cancer treatment-related cardiotoxicity., Methods: Systematic searches of Embase, Medline, The Cochrane Central Register of Controlled Trials (CENTRAL), and ClinicalTrials.gov databases were performed. Titles and abstracts were screened separately by two cardio-oncologists (JHC, WTC). Full texts of potentially eligible records were then assessed separately by JHC and WTC before inclusion into review upon joint agreement., Results: 479 records were identified from 3 databases (MEDLINE=51, EMBASE=408, CENTRAL=13) and 1 registry (Clinicaltrials.gov=7). 460 records were excluded based on title and abstract (including duplicates). 19 full text reports were assessed for eligibility and included in review (basic science/animal study paper 2, Clinicaltrials.gov randomised controlled trial submission 1 (currently recruiting), basic science/animal study conference abstract 5, case report 2, review 3, editorial comment 2, clinical guidelines 1, retrospective/registry-based conference abstract 3)., Conclusion: Cardiotoxicity is the most common dose-limiting toxicity associated with trastuzumab. Discontinuation of trastuzumab however, can lead to worse cancer outcomes. There have been case reports, registry-based, retrospective cohort-based and mechanistic studies suggesting the cardioprotective potential of SGLT2i in cancer therapy-related cardiac dysfunction (CTRCD). Based on these, there is now a call for randomised controlled trials to be performed in this patient cohort to advise guideline-directed therapy for CTRCD, which will in turn also provide detailed safety information and improve cancer and cardiovascular outcomes., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024. Published by Elsevier Inc.)
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- 2024
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8. Bermudagrass mite (Acari: Eriophyidae) infestation worsens in response to increasing nitrogen fertility and decreasing irrigation volume but not mowing height.
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Brown MS and Chong JH
- Subjects
- Animals, Cynodon, Nitrogen, Dehydration, Fertility, Mites
- Abstract
Severe bermudagrass mite (Aceria cynodoniensis Sayed) infestation stunts turfgrass growth and reduces the aesthetic and recreational value of managed bermudagrass. Management practices, such as fertilization, mowing, and irrigation, may impact bermudagrass mite infestation and damage, but empirical evidence is lacking. Two 20 wk experiments were conducted with potted bermudagrass in a greenhouse or nursery to evaluate the effect of varying nitrogen rates (0, 24.5, or 49 kg N/ha), mowing heights (1.3, 2.5, 3.8, or 5 cm), and irrigation rates (60%, 100%, or 140% evapotranspiration [ET] rate) on the densities of witch's brooms (i.e., stunted and deformed terminals symptomatic of infestation) and bermudagrass mites. Increasing nitrogen fertility from 0 to 49 kg N/ha increased witch's broom and bermudagrass mite densities by 292% and 339%, respectively. Bermudagrass fertilized with nitrogen maintained higher turf quality than unfertilized grass despite greater mite damage. Decreasing irrigation from 140% to 60% of the ET rate also increased witch's broom densities by 124%. Mowing height did not consistently affect witch's broom or mite densities. Witch's broom and mite densities were positively correlated and followed a general trend with greater densities in April-August and a decline in densities in August-October. These findings suggest that nitrogen fertilization and water stress influence bermudagrass mite damage. Thus, limiting nitrogen fertilization to a level necessary to maintain turfgrass health and quality (0.5 kg N/ha) and minimizing turfgrass water stress can complement current chemical control strategies as part of an integrated pest management program., (© The Author(s) 2023. Published by Oxford University Press on behalf of Entomological Society of America.)
- Published
- 2023
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9. Approach to clinically significant vascular anomalies in children.
- Author
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Tanugroho RR, Wee LWY, Koh MJA, and Chong JH
- Subjects
- Infant, Newborn, Child, Humans, Syndrome, Vascular Malformations diagnosis, Vascular Malformations therapy, Vascular Malformations pathology, Vascular Diseases
- Abstract
Vascular anomalies consist of tumours or malformations made up of abnormal growth or collections of blood vessels that can result in functional or cosmetic problems. While many vascular anomalies are present at birth, some do not appear until later in life, making diagnosis more challenging. Although many vascular anomalies are benign, some are associated with serious complications and may involve multiple organ systems. This article highlights the important features of clinically significant vascular anomalies to help physicians promptly identify and refer these cases to a specialised multidisciplinary team for evaluation and management. The discussion includes the various presenting complaints of vascular anomalies in children, namely, rapidly growing birthmarks, painful lesions, seizures/neurological manifestations, bleeding diathesis, cardiac/airway abnormalities and part of an overgrowth syndrome., Competing Interests: None
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- 2023
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10. Growing media is the major source of damaging population of Systena frontalis (Coleoptera: Chrysomelidae) in ornamental plant nurseries.
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Arshad R, Chong JH, Del Pozo-Valdivia AI, and Joseph SV
- Abstract
Systena frontalis (F.) (Coleoptera: Chrysomelidae) is a serious pest of ornamental shrubs in containerized ornamental plant nurseries in the central and eastern United States. Adult S. frontalis cause numerous shot holes on foliage, rendering ornamental plants unmarketable. Growing media in plant containers is an overwintering site of S. frontalis, but the extent to which adults emerging from the growing media can damage the plants is unclear. Experiments were conducted on panicled hydrangea (Hydrangea paniculata Siebold) in Georgia, North Carolina, and Virginia nurseries in the spring of 2021 and 2022 to answer this question. The treatments were (i) canopy caged, (ii) whole-plant caged, and (iii) noncaged hydrangea plants. In all 3 states, beetle abundance and feeding damage found on caged (whole plant) and noncaged plants were significantly greater than those on plants where only the canopy was caged. In most sites and years, beetle abundance and feeding damage were not significantly different between the noncaged plants and those where the canopy and containers were caged, suggesting that the majority of S. frontalis emerged from the growing media and the majority of damage suffered by the hydrangea plants were caused by beetles emerging from the containers. Because growing media contributed to a significant proportion of the S. frontalis population in a nursery, treatment targeting larvae in the growing media should be a critical component of a holistic management plan against S. frontalis., (© The Author(s) 2023. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)
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- 2023
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11. Global Cardio Oncology Registry (G-COR): Registry Design, Primary Objectives, and Future Perspectives of a Multicenter Global Initiative.
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Teske AJ, Moudgil R, López-Fernández T, Barac A, Brown SA, Deswal A, Neilan TG, Ganatra S, Abdel Qadir H, Menon V, Sverdlov AL, Cheng RK, Makhoul S, Ghosh AK, Szmit S, Zaha V, Addison D, Zhang L, Herrmann J, Chong JH, Agarwala V, Iakobishvili Z, Guerrero P, Yang EH, Leja M, Akhter N, Guha A, Okwuosa TM, Silva CC, Collier P, DeCara J, Bauer B, Lenneman CE, and Sadler D
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- Humans, Female, Medical Oncology, Registries, Multicenter Studies as Topic, Cardiology, Neoplasms diagnosis, Neoplasms epidemiology, Neoplasms therapy, Cardiologists, Breast Neoplasms
- Abstract
Background: Global collaboration in cardio-oncology is needed to understand the prevalence of cancer therapy-related cardiovascular toxicity in different risk groups, practice settings, and geographic locations. There are limited data on the socioeconomic and racial/ethnic disparities that may impact access to care and outcomes. To address these gaps, we established the Global Cardio-Oncology Registry, a multinational, multicenter prospective registry., Methods: We assembled cardiologists and oncologists from academic and community settings to collaborate in the first Global Cardio-Oncology Registry. Subsequently, a survey for site resources, demographics, and intention to participate was conducted. We designed an online data platform to facilitate this global initiative., Results: A total of 119 sites responded to an online questionnaire on their practices and main goals of the registry: 49 US sites from 23 states and 70 international sites from 5 continents indicated a willingness to participate in the Global Cardio-Oncology Registry. Sites were more commonly led by cardiologists (85/119; 72%) and were more often university/teaching (81/119; 68%) than community based (38/119; 32%). The average number of cardio-oncology patients treated per month was 80 per site. The top 3 Global Cardio-Oncology Registry priorities in cardio-oncology care were breast cancer, hematologic malignancies, and patients treated with immune checkpoint inhibitors. Executive and scientific committees and specific committees were established. A pilot phase for breast cancer using Research Electronic Data Capture Cloud platform recently started patient enrollment., Conclusions: We present the structure for a global collaboration. Information derived from the Global Cardio-Oncology Registry will help understand the risk factors impacting cancer therapy-related cardiovascular toxicity in different geographic locations and therefore contribute to reduce access gaps in cardio-oncology care. Risk calculators will be prospectively derived and validated., Competing Interests: Disclosures Dr Teske has received speaker fees from Philips and Abbott; consulting from Nordic Pharma. Dr Neilan reports consulting from BMS, Abbvie, Sanofi, Genentech, Roche, and C4-Therapeutics; grant funding from BMS and AZ. Dr López-Fernández has received speaker fees from Philips, Janssen, and Incyte. Dr Szmit has received speaker fees from Amgen, Angelini, Astra Zeneca, Bayer, Bristol-Myers Squibb, Gilead, and Pfizer. Dr Guha is supported by American Heart Association-Strategically Focused Research Network Grant in Disparities in Cardio-Oncology (847740 and 863620). Dr Iakobishvili has received speaker fees from AstraZeneca, Boehringer Ingelheim, Novartis, Pfizer, Novo-Nordisk, and Bayer. Dr Sverdlov is supported by the National Heart Foundation of Australia Future Leader Fellowship (Award ID 106025) and reports research grants from the Medical Research Future Fund (Australia), NSW Health (Australia), Cancer Institute NSW (Australia), Hunter Medical Research Institute (Australia), Biotronik, RACE Oncology, Bristol Myer Squibb, Roche Diagnostics, and Vifor; and personal speaker fees from Novartis, Bayer, Bristol Myer Squibb, AstraZeneca, and Boehringer Ingelheim. The other authors report no conflicts.
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- 2023
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12. Interchangeability in Left Ventricular Ejection Fraction Measured by Echocardiography and cardiovascular Magnetic Resonance: Not a Perfect Match in the Real World.
- Author
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Clark J, Ionescu A, Chahal CAA, Bhattacharyya S, Lloyd G, Galanti K, Gallina S, Chong JH, Petersen SE, Ricci F, and Khanji MY
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- Male, Humans, Middle Aged, Female, Stroke Volume, Retrospective Studies, Magnetic Resonance Imaging methods, Echocardiography methods, Magnetic Resonance Spectroscopy, Ventricular Function, Left, Ventricular Dysfunction, Left diagnostic imaging
- Abstract
Comparisons of transthoracic echocardiography (TTE) and cardiovascular magnetic resonance (CMR) derived left ventricular ejection fraction (LVEF) have been reported in core-lab settings but are limited in the real-world setting. We retrospectively identified outpatients from 4 hospital sites who had clinically indicated quantitative assessment of LVEF
TTE and LVEFCMR and evaluated their concordance. In 767 patients (mean age 47.6 years; 67.9% males) the median inter-modality interval was 35 days. There was significant positive correlation between the 2 modalities (r = 0.75; P < 0.001). Median LVEF was 54% (IQR 47%, 60%) for TTE and 59% (IQR 51%, 64%) for CMR, (P < 0.001). Normal LVEFTTE was confirmed by CMR in 90.6% of cases. Of patients with severely impaired LVEFTTE , 42.3% were upwardly reclassified by CMR as less severely impaired. The overall proportion of patients that had their LVEF category confirmed by both imaging modalities was 64.4%; Cohen's Kappa 0.41, indicating fair-to-moderate agreement. Overall, CMR upwardly reclassified 28% of patients using the British Society of Echocardiography LVEF grading, 18.6% using the European Society of Cardiology heart failure classification, and 29.6% using specific reference ranges for each modality. In a multi-site "real-worldˮ clinical setting, there was significant discrepancy between LVEFTTE and LVEFCMR measurement. Only 64.4% had their LVEF category confirmed by both imaging modalities. LVEFTTE was generally lower than LVEFCMR. LVEFCMR upwardly reclassified almost half of patients with severe LV dysfunction by LVEFTTE . Clinicians should consider the inter-modality variation before making therapeutic recommendations, particularly as clinical trial LVEF thresholds have historically been guided by echocardiography., (Copyright © 2023 The Author(s). Published by Elsevier Inc. All rights reserved.)- Published
- 2023
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13. Advancing Cardio-Oncology in Asia.
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Ng CT, Tan LL, Sohn IS, Gonzalez Bonilla H, Oka T, Yinchoncharoen T, Chang WT, Chong JH, Cruz Tan MK, Cruz RR, Astuti A, Agarwala V, Chien V, Youn JC, Tong J, and Herrmann J
- Abstract
Cardio-oncology is an emerging multi-disciplinary field, which aims to reduce morbidity and mortality of cancer patients by preventing and managing cancer treatment-related cardiovascular toxicities. With the exponential growth in cancer and cardiovascular diseases in Asia, there is an emerging need for cardio-oncology awareness among physicians and country-specific cardio-oncology initiatives. In this state-of-the-art review, we sought to describe the burden of cancer and cardiovascular disease in Asia, a region with rich cultural and socio-economic diversity. From describing the uniqueness and challenges (such as socio-economic disparity, ethnical and racial diversity, and limited training opportunities) in establishing cardio-oncology in Asia, and outlining ways to overcome any barriers, this article aims to help advance the field of cardio-oncology in Asia., Competing Interests: The authors have no relevant conflicts of interest., (Copyright © 2023. The Korean Society of Cardiology.)
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- 2023
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14. Five state factors control progressive stages of freshwater salinization syndrome.
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Kaushal SS, Mayer PM, Likens GE, Reimer JE, Maas CM, Rippy MA, Grant SB, Hart I, Utz RM, Shatkay RR, Wessel BM, Maietta CE, Pace ML, Duan S, Boger WL, Yaculak AM, Galella JG, Wood KL, Morel CJ, Nguyen W, Querubin SEC, Sukert RA, Lowien A, Houde AW, Roussel A, Houston AJ, Cacopardo A, Ho C, Talbot-Wendlandt H, Widmer JM, Slagle J, Bader JA, Chong JH, Wollney J, Kim J, Shepherd L, Wilfong MT, Houlihan M, Sedghi N, Butcher R, Chaudhary S, and Becker WD
- Abstract
Factors driving freshwater salinization syndrome (FSS) influence the severity of impacts and chances for recovery. We hypothesize that spread of FSS across ecosystems is a function of interactions among five state factors: human activities, geology, flowpaths, climate , and time . (1) Human activities drive pulsed or chronic inputs of salt ions and mobilization of chemical contaminants. (2) Geology drives rates of erosion, weathering, ion exchange, and acidification-alkalinization. (3) Flowpaths drive salinization and contaminant mobilization along hydrologic cycles. (4) Climate drives rising water temperatures, salt stress, and evaporative concentration of ions and saltwater intrusion. (5) Time influences consequences, thresholds, and potentials for ecosystem recovery. We hypothesize that state factors advance FSS in distinct stages, which eventually contribute to failures in systems-level functions (supporting drinking water, crops, biodiversity, infrastructure, etc.). We present future research directions for protecting freshwaters at risk based on five state factors and stages from diagnosis to prognosis to cure.
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- 2023
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15. Artificial Intelligence and Cardiovascular Magnetic Resonance Imaging in Myocardial Infarction Patients.
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Chong JH, Abdulkareem M, Petersen SE, and Khanji MY
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- Humans, Reproducibility of Results, Magnetic Resonance Imaging methods, Ventricular Remodeling, Artificial Intelligence, Myocardial Infarction diagnostic imaging, Myocardial Infarction therapy
- Abstract
Cardiovascular magnetic resonance (CMR) is an important cardiac imaging tool for assessing the prognostic extent of myocardial injury after myocardial infarction (MI). Within the context of clinical trials, CMR is also useful for assessing the efficacy of potential cardioprotective therapies in reducing MI size and preventing adverse left ventricular (LV) remodelling in reperfused MI. However, manual contouring and analysis can be time-consuming with interobserver and intra-observer variability, which can in turn lead to reduction in accuracy and precision of analysis. There is thus a need to automate CMR scan analysis in MI patients to save time, increase accuracy, increase reproducibility and increase precision. In this regard, automated imaging analysis techniques based on artificial intelligence (AI) that are developed with machine learning (ML), and more specifically deep learning (DL) strategies, can enable efficient, robust, accurate and clinician-friendly tools to be built so as to try and improve both clinician productivity and quality of patient care. In this review, we discuss basic concepts of ML in CMR, important prognostic CMR imaging biomarkers in MI and the utility of current ML applications in their analysis as assessed in research studies. We highlight potential barriers to the mainstream implementation of these automated strategies and discuss related governance and quality control issues. Lastly, we discuss the future role of ML applications in clinical trials and the need for global collaboration in growing this field., (Copyright © 2022 The Author(s). Published by Elsevier Inc. All rights reserved.)
- Published
- 2022
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16. Enhanced recovery after cardiac surgery and its impact on outcomes: A systematic review.
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Zhang Y, Chong JH, and Harky A
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- Humans, Length of Stay, Postoperative Complications etiology, Postoperative Period, Cardiac Surgical Procedures adverse effects, Enhanced Recovery After Surgery
- Abstract
Background and Aim: Enhanced Recovery After Surgery (ERAS) protocols are a series of perioperative interventions well-established in improving the care and outcomes of patients. With recent emergence of studies on its implementation in cardiac surgery, this paper represents the first systematic review on current evidence of ERAS efficacy in this field., Methods: Two reviewers independently searched through Pubmed, Cochrane, Google Scholar, Web of Science, Embase and Scopus. Comparative studies with controls that described the implementation of ERAS in all types of cardiac operations from 2001 to 2020 were included. Data extracted included patient demographics, components of ERAS protocol described, types of cardiac surgery, and postoperative outcomes., Results: In the final analysis, nine studies were included, of which there were one randomized controlled trial (RCT), one quasi-experiment and seven retrospective/prospective studies. Significant improvement in hospital and ICU length of stay, as well as reduction in postoperative opioid consumption were demonstrated. No increase in postoperative complications were reported., Conclusion: ERAS in cardiac surgery has shown to be potentially safe and effective in improving certain postoperative outcomes. However, the evidence is limited by the lack of high-quality RCTs. We also found the lack of practice of class 1 recommended interventions set forth by the ERAS Cardiac Society. Furthermore, majority of studies only evaluated the immediate postoperative outcomes of patients, and not the long-term outcomes. RCTs that fully implement measures recommended by the ERAS Cardiac Society, with assessments on both immediate and long-term outcomes, are warranted.
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- 2022
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17. Management and Outcomes of Proximal Aortic Graft Infection: A Systematic Review.
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Chong JH, Zhang Y, Harky A, and Field M
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- Aftercare, Aorta surgery, Blood Vessel Prosthesis adverse effects, Humans, Patient Discharge, Retrospective Studies, Treatment Outcome, Blood Vessel Prosthesis Implantation, Prosthesis-Related Infections surgery
- Abstract
Objective: Proximal aortic graft infection (PAGI) is a rare but often fatal postoperative complication. Its management often relied on surgical preferences and resource availability of each centre, until the recent unifying guidelines published by the European Society for Vascular Surgery (ESVS). This paper aimed to amalgamate the published experience in managing PAGI and their outcomes., Methods: PubMed, Scopus and Cochrane Library databases were searched systematically. All primary studies besides single-patient case reports were included. Data extracted included study and patient characteristics, type of index surgery, type of microorganisms involved, definitive treatment modality, and any outcome measures reported., Results: Of the 20 studies included, 157 of the 290 PAGI patients underwent complete graft explantation and replacement, 106 underwent graft-preservation interventions (debridement and/or irrigation), and 25 had antibiotics alone. Adjunctive interventions included graft coverage, vacuum-assisted closure, use of infection-resistant graft materials, and lifelong suppressive therapy. In-hospital mortality was 20.8% (n=60), with postoperative sepsis and multiorgan failure (n=24) being the most common cause. Recurrent infection occurred in 10 post-discharge patients. Post-discharge mortality rate was 11.4% (n=33), with cardiac complications and stroke being the most common cause in surgically-treated and medically-treated patients, respectively., Conclusions: Given the risk of mortality, the management approach of PAGI highly depends on the fitness of the patient. We believe that early referral to specialised aortic centres is essential to plan for optimal management strategies and improve patient outcomes. Further studies are also required to parse out the most effective adjunctive interventions to maximise patient outcomes., (Copyright © 2021 Australian and New Zealand Society of Cardiac and Thoracic Surgeons (ANZSCTS) and the Cardiac Society of Australia and New Zealand (CSANZ). Published by Elsevier B.V. All rights reserved.)
- Published
- 2022
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18. Persistence and metabolism of the diamide insecticide cyantraniliprole in tomato plants.
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Huynh K, Leonard E, Chong JH, Palmer C, and Tharayil N
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- Limit of Detection, Mass Spectrometry, Metabolomics, Pesticide Residues analysis, Pesticides metabolism, Plant Leaves drug effects, Diamide analysis, Insecticides analysis, Solanum lycopersicum drug effects, Pyrazoles analysis, ortho-Aminobenzoates analysis
- Abstract
Plant uptake and metabolism of pesticides are complex and dynamic processes, which contribute to the overall toxicity of the pesticides. We investigated the metabolic fate of cyantraniliprole, a new diamide class of insecticide, during various growth stages of tomato. Cyantraniliprole was the major residue in leaves, flowers, and fruits, with the relative metabolite-to-parent ratios maintained at < 10% up to 28 days after treatment (DAT). Mature leaves contained consistently higher residues of cyantraniliprole than young leaves throughout the study. Flowers contained the highest cyantraniliprole residues up to 21 DAT, then gradually decreased. Immature green fruits had the highest cyantraniliprole residues (5.3 ± 0.7 ng/g; 42 DAT), and decreased toward red ripening stages (1.4 ± 0.2 ng/g; 84 DAT). Metabolism of cyantraniliprole primarily occurred in the foliage, where 21 metabolites were tentatively identified. Flowers and fruits contained 14 and four of these metabolites, respectively. Major transformation pathways were characterized by ring closure, followed by N-demethylation, and glycosylation. Additionally, plant metabolism of cyantraniliprole was also associated with several minor phase-I, phase-II, and breakdown metabolites. The occurrence of these metabolites in plants varied as a function of tissue types and their developmental stages. Our study highlights a tissue-specific biotransformation and accumulation of metabolites of cyantraniliprole in tomato., (© 2021. The Author(s).)
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- 2021
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19. Lipid profiles and outcomes of patients with prior cancer and subsequent myocardial infarction or stroke.
- Author
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Koo CY, Zheng H, Tan LL, Foo LL, Seet R, Chong JH, Hausenloy DJ, Chng WJ, Richards AM, Lee CH, and Chan MY
- Subjects
- Aged, Aged, 80 and over, Cardiometabolic Risk Factors, Female, Humans, Male, Mortality, Myocardial Infarction blood, Neoplasms blood, Stroke blood, Cholesterol blood, Myocardial Infarction epidemiology, Neoplasms epidemiology, Stroke epidemiology, Triglycerides blood
- Abstract
Patients with cancer are at increased risk of myocardial infarction (MI) and stroke. Guidelines do not address lipid profile targets for these patients. Within the lipid profiles, we hypothesized that patients with cancer develop MI or stroke at lower low density lipoprotein cholesterol (LDL-C) concentrations than patients without cancer and suffer worse outcomes. We linked nationwide longitudinal MI, stroke and cancer registries from years 2007-2017. We identified 42,148 eligible patients with MI (2421 prior cancer; 39,727 no cancer) and 43,888 eligible patients with stroke (3152 prior cancer; 40,738 no cancer). Median LDL-C concentration was lower in the prior cancer group than the no cancer group at incident MI [2.43 versus 3.10 mmol/L, adjusted ratio 0.87 (95% CI 0.85-0.89)] and stroke [2.81 versus 3.22 mmol/L, adjusted ratio 0.93, 95% CI 0.91-0.95)]. Similarly, median triglyceride and total cholesterol concentrations were lower in the prior cancer group, with no difference in high density lipoprotein cholesterol. Prior cancer was associated with higher post-MI mortality [adjusted hazard ratio (HR) 1.48, 95% CI 1.37-1.59] and post-stroke mortality (adjusted HR 1.95, 95% CI 1.52-2.52). Despite lower LDL-C concentrations, patients with prior cancer had worse post-MI and stroke mortality than patients without cancer., (© 2021. The Author(s).)
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- 2021
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20. Type A aortic dissection: involvement of carotid artery and impact on cerebral malperfusion.
- Author
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Munir W, Chong JH, Harky A, Bashir M, and Adams B
- Subjects
- Acute Disease, Carotid Artery, Common, Humans, Treatment Outcome, Aortic Dissection complications, Aortic Dissection diagnostic imaging, Aortic Dissection surgery
- Abstract
Acute type A aortic dissection is a surgical emergency and management of such pathology can be complex with poor outcomes when there is organ malperfusion. Carotid artery involvement is present in 30% of patients diagnosed with acute type A aortic dissection, and given its emergency and complex nature, there is much controversy regarding the approach, extent of treatment, and timing of the intervention. It is clear that the occurrence of cerebral malperfusion adds an extra layer of complexity to the decision-making framework for treatment. Standardization and validation of the optimal management approach is required, and this should ideally be addressed with large-scale studies. Nonetheless, current literature supports the need for rapid recognition and diagnosis of acute type A aortic dissection with cerebral malperfusion, immediate and extensive surgical repair, and the appropriate use of cerebral perfusion techniques. This paper aims to discuss the current evidence regarding the impact of carotid artery involvement in both the management and outcomes of acute type A aortic dissection.
- Published
- 2021
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21. COVID-19 and the Digitalisation of Cardiovascular Training and Education-A Review of Guiding Themes for Equitable and Effective Post-graduate Telelearning.
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Chong JH, Chahal CAA, Gupta A, Ricci F, Westwood M, Pugliese F, Petersen SE, and Khanji MY
- Abstract
The coronavirus disease-2019 (COVID-19) pandemic has had an unprecedented impact leading to novel adaptations in post-graduate medical education for cardiovascular and general internal medicine. Whilst the results of initial community COVID-19 vaccination are awaited, continuation of multimodality teaching and training that incorporates telelearning will have enduring benefit to post-graduate education and will place educational establishments in good stead to nimbly respond in future pandemic-related public health emergencies. With the rise in innovative virtual learning solutions, medical educators will have to leverage technology to develop electronic educational materials and virtual courses that facilitate adult learning. Technology-enabled virtual learning is thus a timely progression of hybrid classroom initiatives that are already adopted to varying degrees, with a need for faculty to serve as subject matter experts, to host and moderate online discussions, and to provide feedback and overall mentorship. As an extension from existing efforts, simulation-based teaching (SBT) and learning and the use of mixed reality technology should also form a greater core in the cardiovascular medicine curriculum. We highlight five foundational themes for building a successful e-learning model in cardiovascular and general post-graduate medical training: (1) digital solutions and associated infrastructure; (2) equity in access; (3) participant engagement; (4) diversity and inclusion; and (5) patient confidentiality and governance framework. With digitalisation impacting our everyday lives and now how we teach and train in medicine, these five guiding principles provide a cognitive scaffold for careful consideration of the required ecosystem in which cardiovascular and general post-graduate medical education can effectively operate. With due consideration of various e-learning options and associated infrastructure needs; and adoption of strategies for participant engagement under sound and just governance, virtual training in medicine can be effective, inclusive and equitable through the COVID-19 era and beyond., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2021 Chong, Chahal, Gupta, Ricci, Westwood, Pugliese, Petersen and Khanji.)
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- 2021
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22. A Middle-aged Woman With Recurrent Chest Pain With Troponin Elevation and Unobstructed Coronary Arteries.
- Author
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Chong JH, Baumbach A, and Khanji MY
- Subjects
- Cardiac Imaging Techniques, Cardiac Surgical Procedures, Cerebral Small Vessel Diseases diagnostic imaging, Cerebral Small Vessel Diseases etiology, Chest Pain etiology, Coronary Angiography, Dual Anti-Platelet Therapy, Electrocardiography, Embolism, Paradoxical complications, Embolism, Paradoxical therapy, Female, Foramen Ovale, Patent complications, Foramen Ovale, Patent therapy, Humans, MINOCA blood, MINOCA etiology, MINOCA therapy, Magnetic Resonance Imaging, Middle Aged, Non-ST Elevated Myocardial Infarction blood, Non-ST Elevated Myocardial Infarction etiology, Non-ST Elevated Myocardial Infarction therapy, Paresthesia etiology, Platelet Aggregation Inhibitors therapeutic use, Recurrence, Troponin T blood, Embolism, Paradoxical diagnosis, Foramen Ovale, Patent diagnostic imaging, MINOCA diagnostic imaging, Non-ST Elevated Myocardial Infarction diagnostic imaging
- Published
- 2021
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23. Cardiology training using technology.
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Chong JH, Ricci F, Petersen SE, and Khanji MY
- Subjects
- Education, Medical, Graduate, Humans, Technology, Cardiology education
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- 2021
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24. The Transformation of Cardiology Training in Response to the COVID-19 Pandemic: Enhancing Current and Future Standards to Deliver Optimal Patient Care.
- Author
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Chong JH, Chahal A, Ricci F, Klarich K, Ferrari V, Narula J, and Khanji MY
- Subjects
- Education, Medical, Graduate organization & administration, Forecasting, COVID-19, Cardiology education, Education, Medical, Graduate methods, Education, Medical, Graduate standards, Quality of Health Care
- Abstract
The COVID-19 pandemic has had an unprecedented impact on cardiology training. Novel opportunities have been identified in several domains: patient exposure, procedural experience, didactic education, research and development, advocacy and well-being, and career advancement. Lessons learned from COVID-19 should be used to further improve fellowship training such as, for example, through the development of a competency-based training and evaluation system. Multimodality teaching that incorporates telelearning provides creative solutions for trainee and continuing medical education. Fellow-initiated research should be supported and nurtured. Enhanced attention to trainee well-being and burnout is particularly important. The emerging cardiologists of the future and the way they are trained will be shaped by the COVID-19 challenge of our generation., (Copyright © 2021 Canadian Cardiovascular Society. Published by Elsevier Inc. All rights reserved.)
- Published
- 2021
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25. Atopic dermatitis in children: when topical steroid treatment "does not work".
- Author
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Chong JH
- Subjects
- Administration, Cutaneous, Calcineurin Inhibitors therapeutic use, Child, Child, Preschool, Dermatitis, Allergic Contact diagnosis, Dermatitis, Atopic diagnosis, Diagnosis, Differential, Duration of Therapy, Food Hypersensitivity diagnosis, Humans, Infant, Skin Diseases, Infectious diagnosis, Skin Tests, Treatment Failure, Adrenal Cortex Hormones therapeutic use, Dermatitis, Atopic drug therapy, Emollients therapeutic use, Parents, Patient Education as Topic
- Abstract
Competing Interests: Competing interests: The BMJ has judged that there are no disqualifying financial ties to commercial companies. The authors declare the following other interests: none. Further details of The BMJ policy on financial interests are here: https://www.bmj.com/about-bmj/resources-authors/forms-policies-and-checklists/declaration-competing-interests Provenance and peer review: commissioned; externally peer reviewed.
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- 2021
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26. Aorto-innominate artery bypass for migrated stent.
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Chong JH, Harky A, Badran A, Panagiotopoulos N, Odurny A, Philips M, Livesey S, and Pousios D
- Subjects
- Aorta, Thoracic surgery, Female, Humans, Middle Aged, Stents adverse effects, Sternotomy, Treatment Outcome, Blood Vessel Prosthesis Implantation, Brachiocephalic Trunk diagnostic imaging, Brachiocephalic Trunk surgery
- Abstract
We report a case of a 64-year-old female who first presented with a transient ischemic attack in 2007 due to an innominate artery stenosis, which indicated an endovascular stent placement. In 2008, she presented with recurrence of symptoms and was diagnosed with in-stent restenosis alongside an unusual occurrence of retrograde migration into the ascending aortic arch. We performed an aorto-innominate bypass through a median sternotomy. The patient was discharged without any complications thereafter, and the graft has shown excellent patency. As of 2019, the patient remains well., (© 2020 Wiley Periodicals LLC.)
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- 2021
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27. Can Generalist Predators Control Bemisia tabaci ?
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Kheirodin A, Simmons AM, Legaspi JC, Grabarczyk EE, Toews MD, Roberts PM, Chong JH, Snyder WE, and Schmidt JM
- Abstract
The whitefly, Bemisia tabaci , has developed resistance to many insecticides, renewing interest in the biological control of this global pest. Generalist predators might contribute to whitefly suppression if they commonly occur in infested fields and generally complement rather than interfere with specialized natural enemies. Here, we review literature from the last 20 years, across US cropping systems, which considers the impacts of generalist predators on B. tabaci . Laboratory feeding trials and molecular gut content analysis suggest that at least 30 different generalist predator species willingly and/or regularly feed on these whiteflies. Nine of these predators appear to be particularly impactful, and a higher abundance of a few of these predator species has been shown to correlate with greater B. tabaci predation in the field. Predator species often occupy complementary feeding niches, which would be expected to strengthen biocontrol, although intraguild predation is also common and might be disruptive. Overall, our review suggests that a bio-diverse community of generalist predators commonly attacks B. tabaci , with the potential to exert substantial control in the field. The key challenge will be to develop reduced-spray plans so that generalist predators, and other more specialized natural enemies, are abundant enough that their biocontrol potential is realized.
- Published
- 2020
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28. Systemic immunosuppressants for the treatment of atopic dermatitis in a cohort of Asian children.
- Author
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Bao J, Foong YW, Chong JH, and Aan Koh MJ
- Subjects
- Asian People, Child, Cohort Studies, Humans, Immunosuppressive Agents adverse effects, Dermatitis, Atopic diagnosis, Dermatitis, Atopic drug therapy, Eczema, Immunosuppressive Agents therapeutic use
- Published
- 2020
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- View/download PDF
29. COVID-19 and Multiorgan Response.
- Author
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Zaim S, Chong JH, Sankaranarayanan V, and Harky A
- Subjects
- Angiotensin-Converting Enzyme 2, Betacoronavirus physiology, COVID-19, Comorbidity, Humans, Peptidyl-Dipeptidase A metabolism, Risk Factors, SARS-CoV-2, Cardiovascular Diseases epidemiology, Coronavirus Infections complications, Coronavirus Infections epidemiology, Coronavirus Infections immunology, Multiple Organ Failure etiology, Multiple Organ Failure immunology, Pandemics, Pneumonia, Viral complications, Pneumonia, Viral epidemiology, Pneumonia, Viral immunology
- Abstract
Since the outbreak and rapid spread of COVID-19 starting late December 2019, it has been apparent that disease prognosis has largely been influenced by multiorgan involvement. Comorbidities such as cardiovascular diseases have been the most common risk factors for severity and mortality. The hyperinflammatory response of the body, coupled with the plausible direct effects of severe acute respiratory syndrome on body-wide organs via angiotensin-converting enzyme 2, has been associated with complications of the disease. Acute respiratory distress syndrome, heart failure, renal failure, liver damage, shock, and multiorgan failure have precipitated death. Acknowledging the comorbidities and potential organ injuries throughout the course of COVID-19 is therefore crucial in the clinical management of patients. This paper aims to add onto the ever-emerging landscape of medical knowledge on COVID-19, encapsulating its multiorgan impact., (Copyright © 2020 Elsevier Inc. All rights reserved.)
- Published
- 2020
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30. Steroid phobia in children with atopic dermatitis and their caregivers in Singapore.
- Author
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Salas-Walinsundin WM, Wong V, Chong JH, and Koh MJA
- Subjects
- Caregivers, Child, Humans, Singapore epidemiology, Steroids, Dermatitis, Atopic drug therapy, Phobic Disorders diagnosis, Phobic Disorders epidemiology
- Published
- 2020
- Full Text
- View/download PDF
31. Repeated Remote Ischemic Conditioning Protects Against Doxorubicin Cardiotoxicity: Never Too Much of a Good Thing.
- Author
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Hausenloy DJ, Ng CT, and Chong JH
- Published
- 2020
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32. Rumpel-Leede Phenomenon-An alarming rash with benign etiology in 4 healthy infants.
- Author
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Ho VPY, Chong JH, Bishnoi P, Koh MJA, and Wong SMY
- Subjects
- Capillaries injuries, Exanthema etiology, Humans, Infant, Male, Remission, Spontaneous, Infant Equipment adverse effects, Lower Extremity blood supply, Purpura etiology, Restraint, Physical adverse effects
- Abstract
The Rumpel-Leede phenomenon (RLP) is a rare clinical presentation and in some cases shown to be related to serious systemic conditions. In children, it has been described in association with idiopathic thrombocytopenic purpura and Henoch-Schönlein purpura. We present a series of pediatric cases of RLP with mechanical etiologies that had a benign course. We propose minimal investigations for pediatric RLP cases who are systemically well and have a clear suggestive history of a mechanical cause., (© 2019 Wiley Periodicals, Inc.)
- Published
- 2020
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33. Davener's dermatosis.
- Author
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Khoo ZX, Chong JH, and Koh MJA
- Abstract
Competing Interests: Competing interests: None declared.
- Published
- 2019
- Full Text
- View/download PDF
34. Nitrogen Fertilization of Host Plant Influenced the Nutritional Status and Life History of the Madeira Mealybug (Hemiptera: Pseudococcidae).
- Author
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Rhodes SA, Turnbull MW, and Chong JH
- Subjects
- Animals, Female, Male, Nitrogen, Nutritional Status, Ovum, Plants, Hemiptera
- Abstract
Insect herbivores, especially sap-feeders, are sensitive to host-plant nitrogen quantity. However, past studies present contradicting results on sap-feeder life history traits influenced by plant nitrogen supplementation. This study analyzed the bottom-up effects of below-recommended nitrogen fertilization rates (0, 0.021, 0.048, and 0.091 g N/liter) on life history and total protein and lipid contents of a significant pest species, Phenacoccus madeirensis Green (the Madeira mealybug) (Hemiptera: Pseudococcidae). Developmental durations and survivorship from egg to adulthood of male and female mealybugs were similar across nitrogen fertilization levels. Females reared on plants fertilized at 0.021, 0.048, and 0.091 g N/liter produced, respectively, 152, 142, and 67% more eggs than females reared on unfertilized plants. Finite and intrinsic rates of increase and net reproductive rates of females were similar among the nitrogen fertilization levels, whereas the generation times of females from fertilized plants were significantly shorter than those from the unfertilized plants. Lipid contents of adult females and eggs, and average adult female protein content were similar across the nitrogen treatments. Average egg protein content increased with increasing host-plant fertilization rate. These results suggest that the response of the female Madeira mealybug to nitrogen fertilization is complex and may involve trade-offs and nutrient re-allocation., (© The Author(s) 2019. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)
- Published
- 2019
- Full Text
- View/download PDF
35. [Result analysis of irregular erythrocyte antibody screening].
- Author
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Xie JH, Chong JH, Huang X, Wang W, Dong Z, Li TT, Li LX, and Wu LN
- Subjects
- Humans, Antibodies, Erythrocytes
- Published
- 2019
- Full Text
- View/download PDF
36. Coronary Artery Vasospasm Induced by 5-fluorouracil: Proposed Mechanisms, Existing Management Options and Future Directions.
- Author
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Chong JH and Ghosh AK
- Abstract
Cardiovascular disease and cancer are leading contributors to the global disease burden. As a result of cancer therapy-related cardiotoxicities, cardiovascular disease results in significant morbidity and mortality in cancer survivors and patients with active cancer. There is an unmet need for management of cardio-oncology conditions, which is predicted to reach epidemic proportions, and better understanding of their pathophysiology and treatment is urgently required. The proposed mechanisms underlying cardiotoxicity induced by 5-fluorouracil (5-FU) are vascular endothelial damage followed by thrombus formation, ischaemia secondary to coronary artery vasospasm, direct toxicity on myocardium and thrombogenicity. In patients with angina and electrocardiographic evidence of myocardial ischaemia due to chemotherapy-related coronary artery vasospasm, termination of chemotherapy and administration of calcium channel blockers or nitrates can improve ischaemic symptoms. However, coronary artery vasospasm can reoccur with 5-FU re-administration with limited effectiveness of vasodilator prophylaxis observed. While pre-existing coronary artery disease may increase the ischaemic potential of 5-FU, cardiovascular risk factors do not appear to completely predict the development of cardiac complications. Pharmacogenomic studies and genetic profiling may help predict the occurrence and streamline the treatment of 5-FU-induced coronary artery vasospasm. Echocardiographic measures such as the Tei index may help detect subclinical 5-FU cardiotoxicity. Further research is required to explore the cardioprotective effect of agents such as coenzyme complex, GLP-1 analogues and degradation inhibitors on 5-FU-induced coronary artery vasospasm., Competing Interests: Disclosure: The authors have no conflicts of interest to declare.
- Published
- 2019
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37. Reconstruction of the orbital wall using superior orbital rim osteotomy in a patient with a superior orbital wall fracture.
- Author
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Heo JJ, Chong JH, Han JJ, Jung S, Kook MS, Oh HK, and Park HJ
- Abstract
Background: Fractures of the orbital wall are mainly caused by traffic accidents, assaults, and falls and generally occur in men aged between 20 and 40 years. Complications that may occur after an orbital fracture include diplopia and decreased visual acuity due to changes in orbital volume, ocular depression due to changes in orbital floor height, and exophthalmos. If surgery is delayed too long, tissue adhesion will occur, making it difficult to improve ophthalmologic symptoms. Thus, early diagnosis and treatment are important. Fractures of the superior orbital wall are often accompanied by skull fractures. Most of these patients are unable to perform an early ocular evaluation due to neurosurgery and treatment. These patients are more likely to show tissue adhesion, making it difficult to properly dissect the tissue for wall reconstruction during surgery., Case Presentation: This report details a case of superior orbital wall reconstruction using superior orbital rim osteotomy in a patient with a superior orbital wall fracture involving severe tissue adhesion. Three months after reconstruction, there were no significant complications., Conclusion: In a patient with a superior orbital wall fracture, our procedure is helpful in securing the visual field and in delamination of the surrounding tissue., Competing Interests: Not applicable.The patient consented to the publication of this case report.The authors declare that they have no competing interests.Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
- Published
- 2018
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38. Clear Cell Papulosis: A Rare Pediatric Dermatosis.
- Author
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Tan KWJ, Chong JH, and Koh JAM
- Abstract
The diagnosis and management of pediatric hypopigmented lesions can be challenging given their wide range of differentials. In this case report, we present a case of a 3-year-old Chinese boy who was initially treated for tinea versicolor but subsequently diagnosed to have clear cell papulosis. The features, diagnosis, and management of clear cell papulosis are discussed in this article to raise awareness of this condition amongst pediatricians.
- Published
- 2018
- Full Text
- View/download PDF
39. Natural Enemy Communities and Biological Control of Parthenolecanium spp. (Hemiptera: Coccidae) in the Southeastern United States.
- Author
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Robayo Camacho E, Chong JH, Braman SK, Frank SD, and Schultz PB
- Subjects
- Animals, Georgia, North Carolina, South Carolina, Virginia, Hemiptera
- Abstract
We documented the species composition, seasonal ecology, and impacts of parasitoids and predators of Parthenolecanium corni (Bouché) and P. quercifex (Fitch) (Hemiptera: Coccidae) in the urban landscapes of Georgia, North Carolina, South Carolina, and Virginia, United States. Twenty-one parasitoid morphospecies and 12 predator species were collected through rearing, beat sheet, and sticky card trapping. Coccophagus lycimnia (Walker) (Hymenoptera: Aphelinidae) was the most abundant parasitoid species in South Carolina, North Carolina, and Virginia, whereas Metaphycus sp. 2 (Hymenoptera: Encyrtidae) was the most abundant species in Georgia. Parasitism rates ranged from 59 to 92% in the nymphal population and 27 to 84% in the adult population in South Carolina. Blastothrix sp. 1 (Hymenoptera: Encyrtidae), C. lycimnia, Encyrtus sp. 1 (Hymenoptera: Encyrtidae), Eunotus sp., and Pachyneuron sp. (both Hymenoptera: Pteromalidae) emerged from adult scale insects and significantly reduced the fecundity of parasitized scale insects. Coccophagus lycimnia was the only parasitoid species emerged from nymphs. Hyperaspis signata (Olivier) species group, Chilocorus stigma Say (both Coleoptera: Coccinellidae), and Chrysoperla rufilabris (Burmeister) (Neuroptera: Chrysopidae) were the most abundant predators in South Carolina. The majority of natural enemies (87% of parasitoids and 82% of predators) were active from late March to late August and from late April to late October, respectively., (© The Author(s) 2018. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)
- Published
- 2018
- Full Text
- View/download PDF
40. Can the extent of heart rate reduction predict the clinical response of infantile haemangiomas to propranolol?
- Author
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Chong JH, Prey S, Mya HT, Delarue A, and Labreze C
- Subjects
- Bradycardia physiopathology, Drug Administration Schedule, Female, Heart Rate drug effects, Hemangioma physiopathology, Humans, Infant, Male, Retrospective Studies, Treatment Outcome, Anti-Arrhythmia Agents administration & dosage, Bradycardia drug therapy, Hemangioma drug therapy, Propranolol administration & dosage
- Published
- 2018
- Full Text
- View/download PDF
41. Childhood chronic prurigo: Interest in patch tests and delayed-reading skin prick tests to environmental allergens.
- Author
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Maridet C, Perromat M, Miquel J, Chiaverini C, Bessis D, Lasek A, Piram M, Bursztejn AC, Abasq C, Phan A, Martin L, Bréchat B, Chong JH, Seneschal J, Taïeb A, and Boralevi F
- Subjects
- Child, Child, Preschool, Chronic Disease, Female, Humans, Hypersensitivity, Delayed epidemiology, Hypersensitivity, Delayed immunology, Insect Bites and Stings diagnosis, Insect Bites and Stings epidemiology, Male, Prospective Studies, Prurigo epidemiology, Prurigo immunology, Skin Tests, Allergens adverse effects, Environmental Exposure adverse effects, Hypersensitivity, Delayed diagnosis, Prurigo diagnosis
- Published
- 2018
- Full Text
- View/download PDF
42. A rash that's more than skin deep.
- Author
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Chin X, Chan DKL, and Chong JH
- Subjects
- Diagnosis, Differential, Exanthema congenital, Facial Dermatoses congenital, Female, Humans, Infant, Lupus Erythematosus, Systemic complications, Lupus Erythematosus, Systemic diagnosis, Purpura congenital, Exanthema diagnosis, Facial Dermatoses diagnosis, Lupus Erythematosus, Systemic congenital, Purpura diagnosis
- Abstract
Competing Interests: We have read and understood BMJ policy on declaration of interests and declare the no competing interests. Parental consent obtained Provenance and peer review: not commissioned; externally peer reviewed.
- Published
- 2018
- Full Text
- View/download PDF
43. High-dose pulsed corticosteroid therapy combined with methotrexate for severe alopecia areata of childhood.
- Author
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Chong JH, Taïeb A, Morice-Picard F, Dutkiewicz AS, Léauté-Labrèze C, and Boralevi F
- Subjects
- Adolescent, Child, Child, Preschool, Drug Administration Schedule, Drug Therapy, Combination, Female, Humans, Male, Alopecia Areata drug therapy, Dermatologic Agents administration & dosage, Glucocorticoids administration & dosage, Methotrexate administration & dosage, Methylprednisolone administration & dosage
- Published
- 2017
- Full Text
- View/download PDF
44. Peri-orificial rash in an infant.
- Author
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Liew HM and Chong JH
- Subjects
- Female, Growth Disorders complications, Growth Disorders therapy, Humans, Infant, Exanthema etiology, Growth Disorders diagnosis, Milk, Human chemistry, Zinc deficiency
- Abstract
Competing Interests: We have read and understood BMJ policy on declaration of interests and declare no competing interests.
- Published
- 2017
- Full Text
- View/download PDF
45. Erratum to: Comparison of the Simple Patient-Centric Atopic Dermatitis Scoring System PEST with SCORAD in Young Children Using a Ceramide Dominant Therapeutic Moisturizer.
- Author
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Koh MJ, Giam YC, Liew HM, Foong AY, Chong JH, Wong SMY, Tang MBY, Ho MSL, Tan LS, Mason JM, and Cork MJ
- Published
- 2017
- Full Text
- View/download PDF
46. Comparison of the Simple Patient-Centric Atopic Dermatitis Scoring System PEST with SCORAD in Young Children Using a Ceramide Dominant Therapeutic Moisturizer.
- Author
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Koh MJ, Giam YC, Liew HM, Foong AY, Chong JH, Wong SMY, Tang MBY, Ho MSL, Tan LS, Mason JM, and Cork MJ
- Abstract
Introduction: Patient eczema severity time (PEST) is a new atopic dermatitis (AD) scoring system based on patients' own perception of their disease. Conventional scales such as SCORing of atopic dermatitis (SCORAD) reflect the clinician's observations during the clinic visit. Instead, the PEST score captures eczema severity, relapse and recovery as experienced by the patient or caregiver on a daily basis, promoting patient engagement, compliance with treatment and improved outcomes. This study aims to determine the correlation between carer-assessed PEST and clinician-assessed SCORAD in paediatric AD patients after 12 weeks of treatment using a ceramide-dominant therapeutic moisturizer., Methods: Prospective, open-label, observational, multi-centre study in which children with AD aged 6 months to 6 years were treated with a ceramide dominant therapeutic moisturizer twice daily for 12 weeks; 58 children with mild-to-moderate AD were included. Correlation between the 7-day averaged PEST and SCORAD scores for assessment of AD severity was measured within a general linear model. PEST and SCORAD were compared in week 4 and week 12., Results: At week 12, a moderate correlation was found between the SCORAD and PEST scores (r = 0.51). The mean change in SCORAD and PEST scores from baseline to week 12 was -11.46 [95% confidence interval (CI) -14.99 to -7.92, p < 0.0001] and -1.33 (95% CI -0.71 to -0.10, p < 0.0001) respectively. PEST demonstrated greater responsiveness to change (33.3% of scale) compared to SCORAD (13.8% of scale)., Conclusion: The PEST score correlates well with the SCORAD score and may have improved sensitivity when detecting changes in the severity of AD. The ceramide-dominant therapeutic moisturizer used was safe and effective in the management of AD in young children., Funding: Hyphens Pharma Pte Ltd., Trial Registration: clinicaltrials.gov identifier, NCT02073591.
- Published
- 2017
- Full Text
- View/download PDF
47. Life History of Parthenolecanium spp. (Hemiptera: Coccidae) in Urban Landscapes of the Southeastern United States.
- Author
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Camacho ER, Chong JH, Braman SK, Frank SD, and Schultz PB
- Subjects
- Animals, Body Size, Female, Fertility, Longevity, Models, Biological, Seasons, Southeastern United States, Species Specificity, Hemiptera physiology, Life History Traits
- Abstract
This study was conducted to better understand the life history of Parthenolecanium corni (Bouché) and Parthenolecanium quercifex (Fitch) (Hemiptera: Coccidae), and to develop degree-day models for crawler emergence of the two soft scale species in Georgia, North Carolina, South Carolina, and Virginia. Both species were univoltine in the southeastern United States. In South Carolina, eggs hatched from mid-April to early June; second instars began to appear in September and migrated to twigs to overwinter in October; and third instars and adults appeared in mid-March to early April. Each parthenogenetic female produced on average 1,026 ± 52 eggs. Fecundity was positively correlated to the fresh weight, length, width, and height of gravid females. Gross reproductive rate (GRR) was 695.98 ± 79.34 ♀/♀, net reproductive rate (Rº) was 126.36 ± 19.03 ♀/♀, mean generation time (TG) was 52.61 ± 0.05 wk, intrinsic rate of increase (rm) was 0.04 ♀/♀/wk, and finite rate of increase (λ) was 1.04 times per week. Crawlers first occurred across Georgia, North Carolina, South Carolina, and Virginia in 2011-2013 when 524-596 Celsius-degree-days (DDC) had been accumulated with the single sine estimation method, or 411-479 DDC with the simple average method, at the base temperature of 12.8 °C and the start date of 1 January. These regional models accurately predicted the date of crawler emergence within 1 wk of the actual emergence in 2014., (© The Authors 2017. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For Permissions, please email: journals.permissions@oup.com.)
- Published
- 2017
- Full Text
- View/download PDF
48. Non-topical management of recalcitrant paediatric atopic dermatitis.
- Author
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Chong JH and Koh MJA
- Subjects
- Azathioprine therapeutic use, Child, Cyclosporine therapeutic use, Humans, Medicine, Chinese Traditional, Methotrexate therapeutic use, Mycophenolic Acid therapeutic use, Phototherapy adverse effects, Phototherapy methods, Prebiotics, Probiotics therapeutic use, Recurrence, Ultraviolet Therapy adverse effects, Ultraviolet Therapy methods, Dermatitis, Atopic therapy, Dermatologic Agents therapeutic use, Immunosuppressive Agents therapeutic use
- Abstract
Atopic dermatitis (AD) is a common chronic, pruritic skin disease in children. As the incidence of AD increases, especially in high-income countries, paediatricians may see an increasing number of recalcitrant AD cases in their practice. Although these cases are principally managed by paediatric dermatologists, it is important for paediatricians to be aware of the use and side effects of non-topical treatment like phototherapy and systemic agents as well as the evidence for alternative treatment, which caregivers may ask about. This review presents paediatric evidence for the practical use of phototherapy and certain oral immunosuppressants for paediatric AD including doses, duration of use and monitoring of adverse effects. The use of alternative therapy including traditional medicine, probiotics and the role of nutrition are also discussed. Narrow band ultraviolet B phototherapy is effective in recalcitrant paediatric AD. When phototherapy is ineffective or contraindicated, systemic drugs may be administered cautiously with close surveillance of side effects. The use of azathioprine, ciclosporin, methotrexate and mycophenolate mofetil is generally safe in the short term under close monitoring and can be effective alongside compliance to topical treatment. Alternative complementary treatment is not known to be effective. Holistic management including therapeutic patient education is important. Good quality paediatric studies for non-topical AD treatment are needed for definitive guidelines., Competing Interests: Competing interests: None declared., (Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/.)
- Published
- 2017
- Full Text
- View/download PDF
49. Vitiligo co-existing with lichen striatus: more than a coincidence?
- Author
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Chong JH, Mermin D, Goussot JF, and Taïeb A
- Subjects
- Biopsy, Child, Preschool, Diagnosis, Differential, Female, Humans, Lichen Planus diagnosis, Vitiligo diagnosis, Lichen Planus complications, Skin pathology, Vitiligo complications
- Published
- 2017
- Full Text
- View/download PDF
50. Evaluation of clinical outcomes of implants placed into the maxillary sinus with a perforated sinus membrane: a retrospective study.
- Author
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Kim GS, Lee JW, Chong JH, Han JJ, Jung S, Kook MS, Park HJ, Ryu SY, and Oh HK
- Abstract
Background: The aim of this study was to evaluate the clinical outcomes of implants that were placed within the maxillary sinus that has a perforated sinus membrane by the lateral window approach., Methods: We examined the medical records of the patients who had implants placed within the maxillary sinus that has a perforated sinus membrane by the lateral approach at the Department of Oral and Maxillofacial Surgery of Chonnam National University Dental Hospital from January 2009 to December 2015. There were 41 patients (male:female = 28:13). The mean age of patients was 57.2 ± 7.2 years at the time of operation (range, 20-76 years). The mean follow-up duration was 2.1 years (range, 0.5-5 years) after implant placement. Regarding the method of sinus elevation, only the lateral approach was included in this study., Results: Ninety-nine implants were placed in 41 patients whose sinus membranes were perforated during lateral approach. The perforated sinus membranes were repaired with a resorbable collagen membrane. Simultaneous implant placements with sinus bone grafting were performed in 37 patients, whereas delayed placements were done in four patients. The average residual bone height was 3.4 ± 2.0 mm in cases of simultaneous implant placement and 0.6 ± 0.9 mm in cases of delayed placement. Maxillary bone graft with implant placement, performed on the patients with a perforated maxillary sinus membrane did not fail, and the cumulative implant survival rate was 100%., Conclusions: In patients with perforations of the sinus mucosa, sinus elevation and implant placement are possible regardless of the location and size of membrane perforation. Repair using resorbable collagen membrane is a predictable and reliable technique.
- Published
- 2016
- Full Text
- View/download PDF
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