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Stevens CAT, Vallejo-Vaz AJ, Chora JR, Barkas F, Brandts J, Mahani A, Abar L, Sharabiani MTA, Ray KK. Improving the Detection of Potential Cases of Familial Hypercholesterolemia: Could Machine Learning Be Part of the Solution? J Am Heart Assoc 2024; 13:e034434. [PMID: 38879446 DOI: 10.1161/jaha.123.034434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Accepted: 05/15/2024] [Indexed: 06/19/2024]
Abstract
BACKGROUND Familial hypercholesterolemia (FH), while highly prevalent, is a significantly underdiagnosed monogenic disorder. Improved detection could reduce the large number of cardiovascular events attributable to poor case finding. We aimed to assess whether machine learning algorithms outperform clinical diagnostic criteria (signs, history, and biomarkers) and the recommended screening criteria in the United Kingdom in identifying individuals with FH-causing variants, presenting a scalable screening criteria for general populations. METHODS AND RESULTS Analysis included UK Biobank participants with whole exome sequencing, classifying them as having FH when (likely) pathogenic variants were detected in their LDLR, APOB, or PCSK9 genes. Data were stratified into 3 data sets for (1) feature importance analysis; (2) deriving state-of-the-art statistical and machine learning models; (3) evaluating models' predictive performance against clinical diagnostic and screening criteria: Dutch Lipid Clinic Network, Simon Broome, Make Early Diagnosis to Prevent Early Death, and Familial Case Ascertainment Tool. One thousand and three of 454 710 participants were classified as having FH. A Stacking Ensemble model yielded the best predictive performance (sensitivity, 74.93%; precision, 0.61%; accuracy, 72.80%, area under the receiver operating characteristic curve, 79.12%) and outperformed clinical diagnostic criteria and the recommended screening criteria in identifying FH variant carriers within the validation data set (figures for Familial Case Ascertainment Tool, the best baseline model, were 69.55%, 0.44%, 65.43%, and 71.12%, respectively). Our model decreased the number needed to screen compared with the Familial Case Ascertainment Tool (164 versus 227). CONCLUSIONS Our machine learning-derived model provides a higher pretest probability of identifying individuals with a molecular diagnosis of FH compared with current approaches. This provides a promising, cost-effective scalable tool for implementation into electronic health records to prioritize potential FH cases for genetic confirmation.
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Affiliation(s)
- Christophe A T Stevens
- Department of Primary Care and Public Health School of Public Health, Imperial College London London United Kingdom
| | - Antonio J Vallejo-Vaz
- Department of Primary Care and Public Health School of Public Health, Imperial College London London United Kingdom
- Department of Medicine, Faculty of Medicine Universidad de Sevilla Sevilla Spain
- Clinical Epidemiology and Vascular Risk Instituto de Biomedicina de Sevilla (IBiS), IBiS/Hospital Universitario Virgen del Rocío/Universidad de Sevilla/CSIC Sevilla Spain
- Centro de Investigación Biomédica en Red (CIBER) de Epidemiología y Salud Pública Instituto de Salud Carlos III Madrid Spain
| | - Joana R Chora
- Nacional Institute of Health Dr. Ricardo Jorge Lisbon Portugal
- BioISI-Biosystems and Integrative Sciences Institute University of Lisbon Portugal
| | - Fotis Barkas
- Department of Primary Care and Public Health School of Public Health, Imperial College London London United Kingdom
- Department of Internal Medicine, Faculty of Medicine, School of Health Sciences University of Ioannina Greece
| | - Julia Brandts
- Department of Primary Care and Public Health School of Public Health, Imperial College London London United Kingdom
- Department of Medicine I University Hospital Aachen Aachen Germany
| | - Alireza Mahani
- Quantitative Research Davidson Kempner Capital Management New York NY
| | - Leila Abar
- National Institute of Cancer National Institute of Health Rockville MD
| | - Mansour T A Sharabiani
- Department of Primary Care and Public Health School of Public Health, Imperial College London London United Kingdom
| | - Kausik K Ray
- Department of Primary Care and Public Health School of Public Health, Imperial College London London United Kingdom
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LI JJ. Chinese guideline for lipid management (2023): a new guideline rich in domestic elements for controlling dyslipidemia. J Geriatr Cardiol 2023; 20:618-620. [PMID: 37840631 PMCID: PMC10568543 DOI: 10.26599/1671-5411.2023.09.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2023] Open
Affiliation(s)
- Jian-Jun LI
- Division of Cardio-Metabolic Center, State Key Laboratory of Cardiovascular Disease, Fu Wai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
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LI JJ, ZHAO SP, ZHAO D, LU GP, PENG DQ, LIU J, CHEN ZY, GUO YL, WU NQ, YAN SK, WANG ZW, GAO RL. 2023 China Guidelines for Lipid Management. J Geriatr Cardiol 2023; 20:621-663. [PMID: 37840633 PMCID: PMC10568545 DOI: 10.26599/1671-5411.2023.09.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2023] Open
Abstract
Atherosclerotic cardiovascular disease (ASCVD) is the leading cause of death among urban and rural residents in China, and elevated low-density lipoprotein cholesterol (LDL-C) is a risk factor for ASCVD. Considering the increasing burden of ASCVD, lipid management is of the utmost importance. In recent years, research on blood lipids has made breakthroughs around the world, hence a revision of China guidelines for lipid management is imperative, especially since the target lipid levels in the general population vary in respect to the risk of ASCVD. The level of LDL-C, which can be regarded as appropriate in a population without frisk factors, can be considered abnormal in people at high risk of developing ASCVD. As a result, the "Guidelines for the prevention and treatment of dyslipidemia" were adapted into the "China Guidelines for Lipid Management" (henceforth referred to as the new guidelines) by an Experts' committee after careful deliberation. The new guidelines still recommend LDL-C as the primary target for lipid control, with CVD risk stratification to determine its target value. These guidelines recommend that moderate intensity statin therapy in adjunct with a heart-healthy lifestyle, be used as an initial line of treatment, followed by cholesterol absorption inhibitors or/and proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibitors, as necessary. The new guidelines provide guidance for lipid management across various age groups, from children to the elderly. The aim of these guidelines is to comprehensively improve the management of lipids and promote the prevention and treatment of ASCVD by guiding clinical practice.
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Affiliation(s)
- Jian-Jun LI
- National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Shui-Ping ZHAO
- The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Dong ZHAO
- Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Guo-Ping LU
- Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Dao-Quan PENG
- The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Jing LIU
- Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Zhen-Yue CHEN
- Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Yuan-Lin GUO
- National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Na-Qiong WU
- National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Sheng-Kai YAN
- Affiliated Hospital of Zunyi Medical University, School of Laboratory Medicine of Zunyi Medical University, Zunyi, Guizhou, China
| | - Zeng-Wu WANG
- National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Run-Lin GAO
- National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences, Beijing, China
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Li JJ, Zhao SP, Zhao D, Lu GP, Peng DQ, Liu J, Chen ZY, Guo YL, Wu NQ, Yan SK, Wang ZW, Gao RL. 2023 Chinese guideline for lipid management. Front Pharmacol 2023; 14:1190934. [PMID: 37711173 PMCID: PMC10498001 DOI: 10.3389/fphar.2023.1190934] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 06/26/2023] [Indexed: 09/16/2023] Open
Abstract
Atherosclerotic cardiovascular disease (ASCVD) is the leading cause of death among urban and rural residents in China, and elevated low-density lipoprotein cholesterol (LDL-C) is a risk factor for ASCVD. Considering the increasing burden of ASCVD, lipid management is of the utmost importance. In recent years, research on blood lipids has made breakthroughs around the world, hence a revision of Chinese guideline for lipid management is imperative, especially since the target lipid levels in the general population vary in respect to the risk of ASCVD. The level of LDL-C, which can be regarded as appropriate in a population without frisk factors, can be considered abnormal in people at high risk of developing ASCVD. As a result, the "Guidelines for the prevention and treatment of dyslipidemia" were adapted into the "Chinese guideline for Lipid Management" (henceforth referred to as the new guidelines) by an Experts' committee after careful deliberation. The new guidelines still recommend LDL-C as the primary target for lipid control, with cardiovascular disease (CVD) risk stratification to determine its target value. These guidelines recommend that moderate intensity statin therapy in adjunct with a heart-healthy lifestyle, be used as an initial line of treatment, followed by cholesterol absorption inhibitors or/and proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibitors, as necessary. The new guidelines provide guidance for lipid management across various age groups, from children to the elderly. The aim of these guidelines is to comprehensively improve the management of lipids and promote the prevention and treatment of ASCVD by guiding clinical practice.
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Affiliation(s)
- Jian-Jun Li
- National Center for Cardiovascular Diseases, FuWai Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Shui-Ping Zhao
- The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Dong Zhao
- Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Guo-Ping Lu
- Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Dao-Quan Peng
- The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Jing Liu
- Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Zhen-Yue Chen
- Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Yuan-Lin Guo
- National Center for Cardiovascular Diseases, FuWai Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Na-Qiong Wu
- National Center for Cardiovascular Diseases, FuWai Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Sheng-Kai Yan
- Affiliated Hospital of Zunyi Medical University, School of Laboratory Medicine of Zunyi Medical University, Zunyi, Guizhou, China
| | - Zeng-Wu Wang
- National Center for Cardiovascular Diseases, FuWai Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Run-Lin Gao
- National Center for Cardiovascular Diseases, FuWai Hospital, Chinese Academy of Medical Sciences, Beijing, China
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Wang L, Guo J, Tian Z, Seery S, Jin Y, Zhang S. Developing a Hybrid Risk Assessment Tool for Familial Hypercholesterolemia: A Machine Learning Study of Chinese Arteriosclerotic Cardiovascular Disease Patients. Front Cardiovasc Med 2022; 9:893986. [PMID: 35990942 PMCID: PMC9381985 DOI: 10.3389/fcvm.2022.893986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 06/22/2022] [Indexed: 11/15/2022] Open
Abstract
Background Familial hypercholesterolemia (FH) is an autosomal-dominant genetic disorder with a high risk of premature arteriosclerotic cardiovascular disease (ASCVD). There are many alternative risk assessment tools, for example, DLCN, although their sensitivity and specificity vary among specific populations. We aimed to assess the risk discovery performance of a hybrid model consisting of existing FH risk assessment tools and machine learning (ML) methods, based on the Chinese patients with ASCVD. Materials and Methods In total, 5,597 primary patients with ASCVD were assessed for FH risk using 11 tools. The three best performing tools were hybridized through a voting strategy. ML models were set according to hybrid results to create a hybrid FH risk assessment tool (HFHRAT). PDP and ICE were adopted to interpret black box features. Results After hybridizing the mDLCN, Taiwan criteria, and DLCN, the HFHRAT was taken as a stacking ensemble method (AUC_class[94.85 ± 0.47], AUC_prob[98.66 ± 0.27]). The interpretation of HFHRAT suggests that patients aged <75 years with LDL-c >4 mmol/L were more likely to be at risk of developing FH. Conclusion The HFHRAT has provided a median of the three tools, which could reduce the false-negative rate associated with existing tools and prevent the development of atherosclerosis. The hybrid tool could satisfy the need for a risk assessment tool for specific populations.
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Affiliation(s)
- Lei Wang
- State Key Laboratory of Complex Severe and Rare Diseases, Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jian Guo
- State Key Laboratory of Complex Severe and Rare Diseases, Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- State Key Laboratory of Complex Severe and Rare Diseases, Medical Research Center, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Zhuang Tian
- State Key Laboratory of Complex Severe and Rare Diseases, Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Samuel Seery
- Department of Humanities and Social Sciences, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ye Jin
- State Key Laboratory of Complex Severe and Rare Diseases, Medical Research Center, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Shuyang Zhang
- State Key Laboratory of Complex Severe and Rare Diseases, Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- *Correspondence: Shuyang Zhang,
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Familial hypercholesterolemia in China requires greater efforts. CARDIOLOGY PLUS 2022. [DOI: 10.1097/cp9.0000000000000013] [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] Open
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Prevalence and patient characteristics of familial hypercholesterolemia in a middle-aged Chinese population: Results from China PEACE Million Persons Project. Atherosclerosis 2022; 350:58-64. [DOI: 10.1016/j.atherosclerosis.2022.03.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 03/17/2022] [Accepted: 03/29/2022] [Indexed: 11/24/2022]
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Chua YA, Razman AZ, Ramli AS, Mohd Kasim NA, Nawawi H. Familial Hypercholesterolaemia in the Malaysian Community: Prevalence, Under-Detection and Under-Treatment. J Atheroscler Thromb 2021; 28:1095-1107. [PMID: 33455995 PMCID: PMC8560842 DOI: 10.5551/jat.57026] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 10/29/2020] [Indexed: 11/15/2022] Open
Abstract
AIM Familial hypercholesterolaemia (FH) is the most common autosomal dominant lipid disorder, leading to severe hypercholesterolaemia. Early detection and treatment with lipid-lowering medications may reduce the risk of premature coronary artery disease in FH patients. However, there is scarcity of data on FH prevalence, detection rate, treatment and control with lipid-lowering therapy in the Malaysian community. METHODS Community participants (n=5130) were recruited from all states in Malaysia. Blood samples were collected for lipid profiles and glucose analyses. Personal and family medical histories were collected by means of assisted questionnaire. Physical examination for tendon xanthomata and premature corneal arcus were conducted on-site. FH were clinically screened using Dutch Lipid Clinic Network Criteria. RESULTS Out of 5130 recruited community participants, 55 patients were clinically categorised as potential (Definite and Probable) FH, making the prevalence FH among the community as 1:100. Based on current total population of Malaysia (32 million), the estimated number of FH patients in Malaysia is 320,000, while the detection rates are estimated as 0.5%. Lipid-lowering medications were prescribed to 54.5% and 30.5% of potential and possible FH patients, respectively, but none of them achieved the therapeutic LDL-c target. CONCLUSION Clinically diagnosed FH prevalence in Malaysian population is much higher than most of the populations in the world. At community level, FH patients are clinically under-detected, with majority of them not achieving target LDL-c level for high-risk patients. Therefore, public health measures are warranted for early detection and treatment, to enhance opportunities for premature CAD prevention.
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Affiliation(s)
- Yung-An Chua
- Institute of Pathology, Laboratory and Forensic Medicine (I-PPerForM), Universiti Teknologi MARA, Sungai Buloh, Selangor, Malaysia
| | - Aimi Zafira Razman
- Institute of Pathology, Laboratory and Forensic Medicine (I-PPerForM), Universiti Teknologi MARA, Sungai Buloh, Selangor, Malaysia
| | - Anis Safura Ramli
- Institute of Pathology, Laboratory and Forensic Medicine (I-PPerForM), Universiti Teknologi MARA, Sungai Buloh, Selangor, Malaysia
- Departments of Primary Care Medicine, Universiti Teknologi MARA, Selayang, Selangor, Malaysia
| | - Noor Alicezah Mohd Kasim
- Institute of Pathology, Laboratory and Forensic Medicine (I-PPerForM), Universiti Teknologi MARA, Sungai Buloh, Selangor, Malaysia
- Pathology, Faculty of Medicine, Universiti Teknologi MARA, Selayang, Selangor, Malaysia
| | - Hapizah Nawawi
- Institute of Pathology, Laboratory and Forensic Medicine (I-PPerForM), Universiti Teknologi MARA, Sungai Buloh, Selangor, Malaysia
- Pathology, Faculty of Medicine, Universiti Teknologi MARA, Selayang, Selangor, Malaysia
- Specialist Lipid and Coronary Risk Prevention Clinics, Clinical Training Centre, Faculty of Medicine, Universiti Teknologi MARA, Sungai Buloh, Selangor, Malaysia
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Hendricks-Sturrup RM, Clark-LoCascio J, Lu CY. A Global Review on the Utility of Genetic Testing for Familial Hypercholesterolemia. J Pers Med 2020; 10:E23. [PMID: 32295171 PMCID: PMC7354443 DOI: 10.3390/jpm10020023] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 04/07/2020] [Accepted: 04/08/2020] [Indexed: 12/14/2022] Open
Abstract
Familial hypercholesterolemia (FH) is a genetic disorder of cholesterol metabolism that affects an estimated 1/250 persons in the United States and abroad. FH is hallmarked by high low-density lipoprotein (LDL) cholesterol and an increased risk of premature atherosclerotic cardiovascular disease. This review summarizes recent global evidence showing the utility of FH genetic testing across diverse populations. Clinical and other qualitative outcomes following FH genetic testing were improved FH diagnosis, treatment initiation or continued treatment, treatment modification, improved total or LDL cholesterol levels, education on lifestyle management, and genetic counseling. This summary of evidence should be considered by those seeking overall evidence and knowledge gaps on the utility of FH genetic testing from a global perspective and for certain ethnic and age populations. These findings can be used to inform insurance policies and coverage decisions for FH genetic testing, policy recommendations to reduce the clinical and public health burden of FH, clinical practice and guidelines to improve the management of FH populations, and ongoing research involving FH genetic testing. We conclude that further investigations are needed to examine: (1) non-clinical outcomes following FH genetic testing; (2) patient-reported outcomes following FH genetic testing to convey patient experiences, values, and goals; and (3) clinical outcomes following FH genetic testing in non-Caucasian and pediatric populations in the United States and abroad.
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Affiliation(s)
- Rachele M. Hendricks-Sturrup
- Department of Population Medicine, Harvard Pilgrim Health Care Institute and Harvard Medical School, Boston, MA 02215, USA;
| | - Jodi Clark-LoCascio
- Pallavi Patel College of Health Care Sciences, Nova Southeastern University, Fort Lauderdale, FL 33314, USA;
| | - Christine Y. Lu
- Department of Population Medicine, Harvard Pilgrim Health Care Institute and Harvard Medical School, Boston, MA 02215, USA;
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