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Steele S, Tan C, Cieslik L, Nanayakkara S, Mariani J, Leet A, Patel H. 307 Comparison of Left Ventriculography and Transthoracic Echocardiography in the Assessment of Left Ventricular Systolic Function Post Myocardial Infarction - A Single Centre Retrospective Analysis. Heart Lung Circ 2020. [DOI: 10.1016/j.hlc.2020.09.314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Tan C, Dinh D, Brennan A, Zaman S, Dagan M, O'Brien J, Liew D, Van Gaal W, Reid C, Walton A, Kaye D, Lefkovits J, Duffy S. 535 Prescribing Patterns of Dual Antiplatelet Therapy Following Percutaneous Coronary Intervention for Acute Coronary Syndromes from the Victorian Cardiac Outcomes Registry. Heart Lung Circ 2020. [DOI: 10.1016/j.hlc.2020.09.542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Warren J, Dinh D, Tan C, Clark D, Dagan M, Ajani A, Brennan A, Stehli J, Sebastian M, Freeman M, Oqueli E, Kaye D, Duffy S. 501 Impact of Pre-Procedural Diastolic Blood Pressure on Outcomes in Patients Undergoing Percutaneous Coronary Intervention. Heart Lung Circ 2020. [DOI: 10.1016/j.hlc.2020.09.508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Tan C, Dagan M, Stehli J, Zaman S, Duffy S, Kaye D. 456 Characteristics and Clinical Outcomes in Patients With Spontaneous Coronary Artery Dissection. Heart Lung Circ 2020. [DOI: 10.1016/j.hlc.2020.09.463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Dagan M, Dinh D, Stehli J, Zaman S, Brennan A, Tan C, Liew D, Reid C, Walton A, Kaye D, Lefkovits J, Duffy S. 838 Impact of Age and Sex on Treatment and Outcomes Following Percutaneous Coronary Intervention for Myocardial Infarction. Heart Lung Circ 2020. [DOI: 10.1016/j.hlc.2020.09.845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Tan C, Dinh D, Clark D, Ajani A, Brennan A, Warren J, Stub D, Freeman M, O'Brien J, Hiew C, Reid C, Oqueli E, Chan W, Duffy S. 909 Trends in Prescribing Patterns of Ticagrelor, Prasugrel and Clopidogrel Following Percutaneous Coronary Intervention for Acute Coronary Syndromes. Heart Lung Circ 2020. [DOI: 10.1016/j.hlc.2020.09.916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Dagan M, Dinh D, Stehli J, Tan C, Brennan A, Ajani A, Freeman M, Reid C, Hiew C, Oqueli E, Kaye D, Clark D, Duffy S. 165 Sex Differences in Pharmacotherapy and Long-Term Outcomes in Patients With Ischaemic Heart Disease and Left Ventricular Dysfunction. Heart Lung Circ 2020. [DOI: 10.1016/j.hlc.2020.09.172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Tan C, Patel HC, Mariani J. An unusual suspect for heart failure. Acute Med 2020; 19:42. [PMID: 32226956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A 71-year old retired missionary presented with a 2- week history of increasing dyspnoea, orthopnoea, and peripheral oedema. The patient had no previous significant past medical history. On clinical examination, his heart sounds were dual and his jugular venous pressure was elevated to 7cm. On chest auscultation there were bilateral crepitations at his lung bases.
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Dagan M, Dinh D, Stehli J, Tan C, Brennan A, Ajani A, Freeman M, Reid C, Hiew C, Oqueli E, Kaye D, Clark D, Duffy S. 123 Impact of Sex on Heart Failure Pharmacotherapy and Outcomes in Patients With Ischaemic Heart Disease and Comorbid Heart Failure With Reduced Ejection Fraction. Heart Lung Circ 2020. [DOI: 10.1016/j.hlc.2020.09.130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Tan C, Patel HC, Mariani J. An unusual suspect for heart failure. Acute Med 2020; 19:52-55. [PMID: 32226959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Constrictive pericarditis though an uncommon diagnosis is a potentially reversible form of heart failure (with surgical pericardiectomy) and hence is imperative to diagnose. Diagnosis is dependent on a high index of clinical suspicion and further testing with appropriate cardiac investigations including cardiac imaging with invasive cardiac catheterisation as the gold standard.
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Alsharqi M, Huckstep OJ, Williamson W, Mohamed A, Tan C, Lapidaire W, Telles F, Arnold L, Monteiro C, Dawes H, Foster C, Lewandowski AJ, Leeson P. P374 Prediction of an adverse cardiovascular response to physical exercise from resting echocardiography imaging in young adults with suboptimal blood pressure. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Funding Acknowledgements
British Heart Foundation (BHF) grants (PG/13/58/30397)
Background
Young adults with mildly elevated blood pressure are less likely to engage with physical activity. This may be because early hypertension alters myocardial response to moderate exercise, leading to greater perceived exertion and lower levels of enjoyment. As atrial and ventricular function are closely coupled we investigated whether subclinical atrial changes at rest may identify this myocardial response.
Purpose
To identify whether subclinical changes in left atrial function at rest predict response to exercise by performing left atrial deep-phenotyping in a cohort of young adults with a range of blood pressures.
Methods
Seventy-one full-term born young adults (25.25 ± 5.13 years) were enrolled in the Young Adult Cardiovascular Health sTudy (YACHT) to undergo baseline clinical and cardiovascular phenotyping including detailed blood pressure measurement. Cardiopulmonary exercise testing combined with echocardiography imaging was performed to assess the myocardial response to physical exercise at 40%, 60% and 80% of peak exercise load for all participants. Left ventricular ejection fraction and global longitudinal strain were measured from an apical four chamber view at each exercise load, and resting left atrial phasic function was assessed by conventional and speckle tracking echocardiography from apical four and two chamber views (figure 1).
Results
In this young cohort with a range of blood pressure (120.9 ± 12.96/70.85 ± 9.78 mmHg), resting left atrial reservoir and conduit function, but not left atrial structural measures, showed good correlation with left ventricular ejection fraction and global longitudinal strain during 40%, 60% and 80% of peak exercise. The association between resting left atrial conduit with left ventricular deformation at 60% of peak exercise intensity remained significant when adjusted for age, sex and mean arterial pressure (P = 0.007).
Conclusion
Left atrial phasic function at rest predicts left ventricular responses to physical exercise in this cohort of young adults, which may relate to early subclinical left atrial remodelling in early hypertension. These findings require validation in other cohorts and investigation of whether this exercise limitation can be overcome in young hypertensives.
Abstract P374 Figure 1
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Xu M, Chang J, Wang X, Ye M, Weng W, Tan C, Ni SJ, Huang D, Wang L, Sheng W. Gene expression profiling for a better understanding of gastric cancer: From the perspective of metabolic rearrangement. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz422.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Tan C, Wang DD, Reisman M, Saw J. Cardiac CT and Structural Heart Disease Interventions (Non-TAVI). CURRENT CARDIOVASCULAR IMAGING REPORTS 2019. [DOI: 10.1007/s12410-019-9516-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Zhou HW, Tan C. Acute Generalized Pustular Bacterid: An Uncommon Dermatosis That Commonly Presents With Acral Pustules. J Investig Allergol Clin Immunol 2019; 29:403-404. [DOI: 10.18176/jiaci.0428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Takagi H, Zhao S, Muto S, Mine H, Watanabe M, Ozaki Y, Okabe N, Hasegawa T, Shio Y, Aoki M, Tan C, Shimoyama S, Nakamura K, Inano A, Suzuki H. P1.03-23 Delta-Like 1 Homolog (DLK1) Expression in Non-Small-Cell Lung Cancer and the Development of Radioimmunotherapy Targeting DLK1. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Sodergren M, Tan C, Reebye V, Habib R, Blakey D, Habib N. Targeting myeloid-derived suppressor cells and T cells: Combination treatment with MTL-CEBPA and PD-1 antibody in a mouse syngeneic CT26 model. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz253.056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Goh K, Low S, Mun K, Tan C, Shahrizaila N, Nishino I, Wong K. EP.21Bcl-2-associated athanogene-3 (BAG3) myopathy in an ethnic-Indian Malaysian patient. Neuromuscul Disord 2019. [DOI: 10.1016/j.nmd.2019.06.151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Lau K, Malik A, Foroutan F, Ching C, Lu Y, Buchan T, Liu H, Kim H, Qiao A, Tan C, Leda M, Wang J, O'Brien K, Stein M, Elmslie C, Rigobon A, Chang D, Vargas JD, Ng N, Borgo A, Siemieniuk R, Sekercioglu N, Evaniew N, Ross H, Alba A. RESTING HEART RATE AS A PREDICTOR OF MORTALITY IN PATIENTS WITH HEART FAILURE. Can J Cardiol 2019. [DOI: 10.1016/j.cjca.2019.07.467] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Finkelstein S, Raman S, van der Velden J, Zhang L, Tan C, Dhillon A, Tonolete F, Chiu N, Probyn L, McDonald R, Sahgal A, Chow E, Chin L. Computed Tomography Evaluation of Mean Bone Density and Volume on Non-Spine Bone Metastases Following Stereotactic Body Radiation Therapy. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.1224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Chiang A, Tan C, Kuonen F, Hodgkinson L, Chiang F, Cho R, Tang J, Chang A, Rieger K, Oro A, Sarin K. 471 Genetic mutations underlying phenotypic plasticity in basosquamous carcinoma. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.07.521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Deng S, Meng H, Wang X, Fan X, Wang Q, Zhou M, Guo X, Wei Z, Wang F, Tan C, Huang X. Graphene oxide-film-coated splitting ratio-adjustable Mach-Zehnder interferometer for relative humidity sensing. OPTICS EXPRESS 2019; 27:9232-9240. [PMID: 31052730 DOI: 10.1364/oe.27.009232] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 03/08/2019] [Indexed: 06/09/2023]
Abstract
In this paper, a splitting ratio-adjustable Mach-Zehnder interferometer (MZI) for the measurement of relative humidity (RH) is proposed and experimentally demonstrated. The sensing head contains three sections of single mode fiber (SMF) and two sections of multimode fiber (MMF), in which the two MMFs are spliced among the three SMFs. The MMFs are corroded with hydrofluoric acid and act as mode couplers to split and recombine light owing to the core diameter mismatch with the SMF. A layer of graphene oxide (GO) is coated on the MMFs by dip-coating and natural evaporation. The effective refractive index of the GO will vary when it absorbs the water molecules. As a result, the intensity of the transmission light in the core and cladding of the single mode fiber can be adjusted. Thus, the intensity of the resonant dip will vary when the relative humidity changes. The experimental results show that a humidity sensitivity of 0.263 dB/RH% with a linear correlation coefficient of 99% can be achieved in a relative humidity range of 35% to 85%.
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Neupane S, Basir M, Tan C, Tabaku M, Alqarqaz M, Khandelwal A, O'Neill W, Don C, Alaswad K. FEASIBILITY AND SAFETY OF ORBITAL ATHERECTOMY FOR THE TREATMENT OF IN-STENT RESTENOSIS. J Am Coll Cardiol 2019. [DOI: 10.1016/s0735-1097(19)31760-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Deng H, Liu YY, Tan C, Zhao Y, Li XD, Yang X, Wang JL. [A randomized single blind comparison of conventional bowel preparation and unplanned preoperative preparation for pelvic organ prolapse]. ZHONGHUA FU CHAN KE ZA ZHI 2019; 54:97-102. [PMID: 30803168 DOI: 10.3760/cma.j.issn.0529-567x.2019.02.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the influence of conventional preoperative intestinal preparation and unplanned preparation on the visual field of pelvic organ prolapse repair surgery. Methods: The patients who underwent transvaginal pelvic organ prolapse repair surgery in Peking University People's Hospital from September 2017 to July 2018 were selected as the research objects except those who had undergone colorectal surgery and chronic constipation. The surgery doctor was blinded by intestinal preparation. There was no intestinal preparation in non intestinal preparation group and polyethylene glycol was taken orally in intestinal preparation group. The main outcome measures were the effect of intestinal contents on the surgical field, the presence of fecal leakage, and the nature and volume of fecal leakage. The standard of fecal contamination was: mild, less than 15 ml, moderate, 15-30 ml, and severe, >30 ml. Secondary indicators were patient satisfaction and symptoms of routine bowel preparation. Results: A total of 120 patients (60 cases of non intestinal preparation group, 60 cases of intestinal preparation group) were selected, including transvaginal hysterectomy, vaginal anterior or posterior colporrhaphy (some patients with anterior prolapse repair with mesh), sacrospinal ligament suspension, total colpectomy and colpocleisis, laparoscopic sacral colpopexy, anti-incontinence surgery. The median age of the patients in non intestinal preparation group was 62 years, and the median age of intestinal preparation group was 60 years. There were no significant differences in median age, anesthesia, operation method, blood loss, operation time and perioperative infection between the two groups (all P>0.05). Fecal contamination occurred in 10% (6/60) of the patients without intestinal preparation and 32% (19/60) of the patients with intestinal preparation (P=0.042). Comparing the two groups, 10% (6/60) of the patients with intestinal preparation had moderate and severe contamination, and the patients without intestinal preparation was only 2% (1/60), there was significant difference (P=0.017). In intestinal preparation group, nausea (8%, 5/60), vomiting (5%, 3/60), abdominal distension (22%, 13/60), fatigue (5%, 3/60) and palpitation (2%, 1/60) were higher than those in non intestinal preparation group. Conclusions: Intestinal preparation with oral laxatives before pelvic organ prolapse repair surgery is not beneficial to the cleaning of the surgical field and increases the discomfort of intestinal preparation. It is safe and feasible for most patients with pelvic organ prolapse to perform pelvic organ prolapse repair surgery without intestinal preparation.
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Song E, Chao X, Nie Y, Jin X, Tan C, Cui J, Hu H, Yao H. Abstract P4-08-32: Derivation and validation of a novel prediction model in breast phyllodes tumors after surgery. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p4-08-32] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Aim
This study aimed to develop a nomogram based on clinicopathological features to evaluate the recurrence probability of breast phyllodes tumors following surgery. The criteria for atypia, mitoses, overgrowth, and surgical margin (AMOS) were also validated.
Method
Data from 334 patients with breast phyllodes tumors, who underwent surgical treatment at Sun Yat-sen Memorial Hospital from January 2005 to December 2014, were used to develop a prediction model. Additionally, data of 36 patients from Peking University Shenzhen Hospital and data of 140 patients from Sun Yat-sen University Cancer Center during the same period were used to validate the model. The medical records and tumor slides were retrospectively reviewed. The log-rank and Cox regression tests were used to develop a clinical prediction model of breast phyllodes tumors as well as validating the AMOS criteriaAll statistical analyses were performed using R and STATA.
Results
Of all 334 patients included in the study, 224 had benign, 91 had borderline, and 19 had malignant tumors. The local and distant recurrence rate was 17.7%. The 1-,3-, and 5-year cumulative recurrence-free survival was 98.5%, 97.9%, and 96.8%, respectively. Surgical margin, mitoses, and tumor border were identified as independent risk factors for breast phyllodes tumors. A nomogram was developed based on these three variables. The C-index of internal and external validation was 0.71and 0.67, respectively. The area under the curve of AMOS criteria was 0.59.
Conclusions
The present study model presented a more concise and objective variables to evaluate the recurrence-free survival of patients after surgery compared with that using the AMOS criteria, which is more appropriate for clinical practice and also allows for a more accurate prediction.
Citation Format: Song E, Chao X, Nie Y, Jin X, Tan C, Cui J, Hu H, Yao H. Derivation and validation of a novel prediction model in breast phyllodes tumors after surgery [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P4-08-32.
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