1.Heat-sensitive moxibustion assisted in palliative treatment to improve the quality of life in elderly patients with malignant tumor: a randomized controlled trial.
Ting YU ; Huawei LIU ; Zuqin LIU ; Rixin CHEN ; Dingyi XIE
Chinese Acupuncture & Moxibustion 2025;45(2):167-172
OBJECTIVE:
To observe the effect of heat-sensitive moxibustion on the quality of life in the elderly patients with malignant tumor based on palliative treatment.
METHODS:
A total of 100 elderly patients with malignant tumor were randomly divided into an observation group (50 cases, 3 cases dropped out) and a control group (50 cases, 4 cases dropped out). The conventional palliative treatment was performed in the control group. On the basis of conventional palliative treatment, heat-sensitive moxibustion was added at Shenque (CV8) and Zhongwan (CV12) in the observation group, once a day, 5 times a week, one course of treatment was composed of 2 weeks, and 2 consecutive courses of treatment were given. In the observation group, 15 patients voluntarily continued heat-sensitive moxibustion treatment, which was collected in the sub-observation group No.1, these patients were treated 3 times a week and for 6 months consecutively. Using the propensity score matching method, 15 patients who only completed 2 courses of treatment were assigned into the sub-observation group No.2. Before and after treatment, the scores of European Organization for Research and Treatment of Cancer quality of life questionnaire (EORTC QLQ-C30), the Karnofsky performance status (KPS), and the anorexia/cachexia subscale-12 (A/CS-12), as well as the immune indexes (the contents of serum immune globulin [Ig]G, IgA, IgM and complements C3 and C4) were observed in the patients of the observation group and the control group. The monthly survivals were recorded in the two sub-observation groups after 6 months of treatment completion. The coordination was analyzed on the score of deqi scale of heat-sensitive moxibustion at the probing stage before treatment and the change in the score of EORTC QLQ-C30 before and after treatment in the patients of the observation group.
RESULTS:
After treatment, except the score related to the financial difficulties, the score of every items in EORTC QLQ-C30 was greater than that before treatment in the observation group (P<0.05); the scores for overall health, nausea/vomiting, pain, short breath, constipation and diarrhea of the scale were higher than those before treatment in the control group (P<0.05). The score for each item of the scale in the observation group was higher when compared with that in the control group, except the score for financial difficulties (P<0.05). After treatment, KPS score increased in the observation group when compared with that before treatment (P<0.05), and the score was higher than that of the control group (P<0.05). After treatment, A/CS-12 score was elevated in comparison with that before treatment in each group (P<0.05), and the score in the observation group was higher than that of the control group (P<0.05). After treatment, in the observation group, the contents of serum IgG, IgA and IgM, and C3 and C4 increased in comparison with those before treatment (P<0.05); and in the control group, the contents of serum IgG, C3 and C4 were declined (P<0.05). After treatment, the contents of serum IgG, IgA and IgM, and C3 and C4 in the observation group were higher than those in the control group (P<0.05). After 6 months of treatment completion, the survival rate in the sub-observation group No.1 was higher than that of the sub-observation group No.2 (P<0.05). In the observation group, the positive coordination was presented between the score of deqi scale of heat-sensitive moxibustion and the change in the score of EORTC QLQ-C30 in the observation group (r>0, P<0.001).
CONCLUSION
On the basis of palliative treatment, heat-sensitive moxibustion can improve the quality of life, appetite and the immunity of the elderly patients with malignant tumor. Consecutive long-term moxibustion is contributed to prolonging the life span. The stronger deqi is felt during moxibustion delivery, the more significant the therapeutic effect is obtained.
Humans
;
Moxibustion
;
Male
;
Female
;
Aged
;
Quality of Life
;
Neoplasms/psychology*
;
Palliative Care
;
Aged, 80 and over
;
Middle Aged
;
Acupuncture Points
2.Efficacy of acupuncture and moxibustion combined with medication for functional constipation in elderly with yang deficiency and qi stagnation and its effect on emotional disorder.
Chinese Acupuncture & Moxibustion 2025;45(4):442-447
OBJECTIVE:
To observe the clinical efficacy of acupuncture and moxibustion combined with medication in the treatment of functional constipation in elderly with yang deficiency and qi stagnation and its effect on emotional disorder.
METHODS:
A total of 86 elderly patients with functional constipation of yang deficiency and qi stagnation were randomly divided into an acupuncture and moxibustion group (43 cases, 1 case dropped out, 1 case was eliminated) and a medication group (43 cases, 1 case dropped out). The medication group was treated with lactulose oral solution, once a day;in the acupuncture and moxibustion group, on the basis of the treatment in the medication group, acupuncture at intestinal three points (bilateral Tianshu [ST25], Shangjuxu [ST37] and Guanyuan [CV4] were selected, 30 min each time, once every other day) combined with thunder-fire moxibustion (Shenque [CV8] was selected, 30 min each time, once every other day) was given. Both groups were treated for 4 weeks. Before and after treatment, the patient assessment of constipation symptoms (PAC-SYM) score, defecation situation (defecation interval time, defecation time, defecation frequency) and the scores of TCM syndrome, patient assessment of constipation quality of life (PAC-QOL), Pittsburgh sleep quality index (PSQI), self-rating anxiety scale (SAS), self-rating depression scale (SDS) were observed in the two groups. The clinical efficacy and safety of the two groups were evaluated.
RESULTS:
Compared before treatment, after treatment, the PAC-SYM scores, defecation interval time, defecation time, TCM syndrome scores, PAC-QOL scores, SAS scores and SDS scores in both groups were decreased (P<0.05), the defecation frequency was increased (P<0.05) in the two groups; the PSQI score in the acupuncture and moxibustion group was decreased (P<0.05). The PAC-SYM score, defecation interval time, defecation time, TCM syndrome score, PAC-QOL score, PSQI score, SAS score and SDS score after treatment in the acupuncture and moxibustion group were lower than those in the medication group (P<0.05), and the defecation frequency in the acupuncture and moxibustion group was higher than that in the medication group (P<0.05). The total effective rate of the acupuncture and moxibustion group was 92.7% (38/41), which was higher than 73.8% (31/42) in the medication group (P<0.05). The incidence of adverse reactions in the acupuncture and moxibustion group was 2.44% (1/41), while that in the medication group was 4.76% (2/42), there was no significant difference between the two groups (P>0.05).
CONCLUSION
Acupuncture and moxibustion combined with medication could improve the defecation situation, emotional disorder, quality of life in elderly patients with functional constipation of yang deficiency and qi stagnation.
Humans
;
Moxibustion
;
Constipation/drug therapy*
;
Female
;
Aged
;
Male
;
Acupuncture Therapy
;
Treatment Outcome
;
Qi
;
Middle Aged
;
Yang Deficiency/drug therapy*
;
Aged, 80 and over
;
Combined Modality Therapy
;
Acupuncture Points
3.Clinical efficacy of acupuncture on mild cognitive impairment and its effect on gut microbiota.
Peng JIANG ; Fen HU ; Mian LIN ; Jianfang ZHU
Chinese Acupuncture & Moxibustion 2025;45(7):903-910
OBJECTIVE:
To observe the clinical efficacy of acupuncture on mild cognitive impairment (MCI) and its effect on gut microbiota.
METHODS:
A total of 62 MCI patients were randomly divided into an experimental group (31 cases, 2 cases dropped out) and a control group (31 cases). Both groups received exercise and cognitive training. In addition, the experimental group underwent acupuncture treatment at acupoints including Baihui (GV20), Sishencong (EX-HN1), and bilateral Fengchi (GB20), Xuanzhong (GB39), Zusanli (ST36), Yanglao (SI6), Xinshu (BL15), and etc., once every other day, three times per week, for a total of 12 weeks. Before and after treatment, the Montreal cognitive assessment (MoCA) and mini-mental state examination (MMSE) scores were evaluated in the two groups, changes in gut microbiota were detected using 16S rDNA sequencing technology. The clinical efficacy was assessed after treatment.
RESULTS:
Compared before treatment, MoCA and MMSE scores were increased in both groups after treatment (P<0.001), with higher scores in the experimental group than those in the control group (P<0.001, P<0.05). After treatment, the relative abundance of Faecalibacterium, Clostridia, and Ruminococcaceae was increased in the experimental group compared with that before treatment (P<0.05). Moreover, the relative abundance of Faecalibacterium in the experimental group was higher than that in the control group (P<0.05). The total effective rate was 82.8% (24/29) in the experimental group, which was higher than 61.3% (19/31) in the control group (P<0.05).
CONCLUSION
Acupuncture could improve cognitive dysfunction in patients with MCI, and its mechanism may be related to increasing the relative abundance of butyrate-producing bacteria such as Faecalibacterium, Clostridia, and Ruminococcaceae, maintaining the intestinal barrier, and inhibiting related inflammatory responses.
Humans
;
Acupuncture Therapy
;
Gastrointestinal Microbiome
;
Cognitive Dysfunction/psychology*
;
Male
;
Female
;
Aged
;
Middle Aged
;
Acupuncture Points
;
Treatment Outcome
;
Aged, 80 and over
;
Cognition
4.Development and validation of the sarcopenia composite index: A comprehensive approach for assessing sarcopenia in the ageing population.
Hsiu-Wen KUO ; Chih-Dao CHEN ; Amy Ming-Fang YEN ; Chenyi CHEN ; Yang-Teng FAN
Annals of the Academy of Medicine, Singapore 2025;54(2):101-112
INTRODUCTION:
The diagnosis of sarcopenia relies on key indicators such as handgrip strength, walking speed and muscle mass. Developing a composite index that integrates these measures could enhance clinical evaluation in older adults. This study aimed to standardise and combine these metrics to establish a z score for the sarcopenia composite index (ZoSCI) tailored for the ageing population. Additionally, we explore the risk factors associated with ZoSCI to provide insights into early prevention and intervention strategies.
METHOD:
This retrospective study analysed data between January 2017 and December 2021 from an elderly health programme in Taiwan, applying the Asian Working Group for Sarcopenia criteria to assess sarcopenia. ZoSCI was developed by standardising handgrip strength, walking speed and muscle mass into z scores and integrating them into a composite index. Receiver operating characteristic (ROC) curve analysis was used to determine optimal cut-off values, and multiple regression analysis identified factors influencing ZoSCI.
RESULTS:
Among the 5047 participants, the prevalence of sarcopenia was 3.7%, lower than the reported global prevalence of 3.9-15.4%. ROC curve analysis established optimal cut-off points for distinguishing sarcopenia in ZoSCI: -1.85 (sensitivity 0.91, specificity 0.88) for males and -1.97 (sensitivity 0.93, specificity 0.88) for females. Factors associated with lower ZoSCI included advanced age, lower education levels, reduced exercise frequency, lower body mass index and creatinine levels.
CONCLUSION
This study introduces ZoSCI, a new compo-site quantitative indicator for identifying sarcopenia in older adults. The findings highlight specific risk factors that can inform early intervention. Future studies should validate ZoSCI globally, with international collaborations to ensure broader applicability.
Humans
;
Sarcopenia/physiopathology*
;
Male
;
Aged
;
Female
;
Retrospective Studies
;
Hand Strength
;
Taiwan/epidemiology*
;
ROC Curve
;
Aged, 80 and over
;
Risk Factors
;
Walking Speed
;
Geriatric Assessment/methods*
;
Prevalence
;
Muscle, Skeletal
;
Middle Aged
5.Health-related quality of life in Singapore: Population norms for the EQ-5D-5L and EORTC QLQ-C30.
Jaclyn TAN ; Mervyn Jr LIM ; Ravindran KANESVARAN ; Richard NORMAN ; Wen Yee CHAY ; Mohamad Farid Bin HARUNAL RASHID ; Mihir GANDHI ; Madeleine KING ; Nan LUO
Annals of the Academy of Medicine, Singapore 2025;54(3):147-159
INTRODUCTION:
Comparison of patient health-related quality of life (HRQOL) scores to a reference group is needed to quantify the HRQOL impact of disease or treatment. This study aimed to establish population norms for 2 HRQOL questionnaires-EuroQol 5-dimension 5-level questionnaire (EQ-5D-5L) and European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire-Core Question-naire 30 (EORTC QLQ-C30) according to age, sex and ethnicity-and to explore relationships between the EQ-5D-5L, EORTC QLQ-C30 and sociodemographic characteristics. We used a representative sample of adult Singapore residents aged 21 years and above.
METHOD:
This study used data collected from a cross-sectional household survey in which 600 adult Singaporeans completed questions on sociodemo-graphic characteristics-the EQ-5D-5L and the EORTC QLQ-C30. Multiple linear regression analyses were conducted to explore associations between sociodemographic characteristics, the EQ-5D-5L scores and the EORTC QLQ-C30 scores. Regression-based population norms were computed for each subgroup using a post-stratification method.
RESULTS:
In multiple linear regression analysis, age was significantly associated with EQ-5D-5L index and visual analogue scale (VAS) scores, while no sociodemographic characteristics were significantly associated with EORTC QLQ-C30 summary scores. The normative EQ-5D-5L index and VAS scores decreased in adults aged 65 years and above, and EQ-5D-5L index scores were slightly lower in females than males and in non-Chinese than Chinese. The normative EORTC QLQ-C30 summary scores were slightly higher in Chinese than in the non-Chinese group and in the 45-64 age group than other age groups.
CONCLUSION
This study provides population norms for the EQ-5D-5L and EORTC QLQ-C30 for the general adult population in Singapore. Future studies of patient populations in Singapore using EQ-5D-5L or QLQ-C30 can use these normative data to interpret the HRQOL data collected.
Humans
;
Quality of Life
;
Singapore
;
Male
;
Female
;
Middle Aged
;
Adult
;
Cross-Sectional Studies
;
Aged
;
Surveys and Questionnaires
;
Young Adult
;
Health Status
;
Age Factors
;
Linear Models
;
Aged, 80 and over
6.Chronic obstructive pulmonary disease 30-day readmission metric: Risk adjustment for multimorbidity and frailty.
Anthony YII ; Isaac FONG ; Sean Chee Hong LOH ; Jansen Meng-Kwang KOH ; Augustine TEE
Annals of the Academy of Medicine, Singapore 2025;54(7):419-427
INTRODUCTION:
The 30-day readmission rate for chronic obstructive pulmonary disease (COPD) is a common performance metric but may be confounded by factors unrelated to quality of care. Our aim was to assess how sociodemographic factors, multimorbidity and frailty impact 30-day readmission risk after COPD hospitalisation, and whether risk adjustment alters interpretation of temporal trends.
METHOD:
This is a retrospective analysis of administra-tive data from October 2017 to June 2023 from Changi General Hospital, Singapore. Multivariable mixed-effects logistic regression models were used to estimate unadjusted and risk-adjusted 30-day readmission odds. Covariates included age, sex, race, Charlson Comorbidity Index (CCI), Hospital Frailty Risk Score (HFRS) and year. Temporal trends in readmission risk were compared across unadjusted and adjusted models.
RESULTS:
Of the 2774 admissions, 749 (27%) resulted in 30-day readmissions. Higher CCI (CCI≥4 versus [vs] CCI=1: adjusted odds ratio [aOR] 2.00, 95% confidence interval [CI] 1.33-2.99, P=0.003; CCI 2-3 vs CCI=1: aOR 1.50, 95% CI 1.15-1.96, P=0.001) and higher HFRS (≥5 vs <5: aOR 1.29, 95% CI 1.01-1.65, P=0.04) were independently associated with increased readmission risk. While unadjusted analyses showed no significant temporal trends, the risk-adjusted model revealed a 32-35% reduction in readmission odds in 2021-2023 compared to baseline.
CONCLUSION
Multimorbidity and frailty significantly impact COPD readmissions. Risk adjustment revealed improvements in readmission risk not evident in unadjusted analyses, emphasising the importance of applying risk adjustments to ensure valid performance metrics.
Humans
;
Pulmonary Disease, Chronic Obstructive/therapy*
;
Patient Readmission/trends*
;
Male
;
Female
;
Retrospective Studies
;
Aged
;
Singapore/epidemiology*
;
Multimorbidity
;
Frailty/epidemiology*
;
Middle Aged
;
Risk Adjustment
;
Aged, 80 and over
;
Logistic Models
;
Risk Factors
7.Automatic brain segmentation in cognitive impairment: Validation of AI-based AQUA software in the Southeast Asian BIOCIS cohort.
Ashwati VIPIN ; Rasyiqah BINTE SHAIK MOHAMED SALIM ; Regina Ey KIM ; Minho LEE ; Hye Weon KIM ; ZunHyan RIEU ; Nagaendran KANDIAH
Annals of the Academy of Medicine, Singapore 2025;54(8):467-475
INTRODUCTION:
Interpretation and analysis of magnetic resonance imaging (MRI) scans in clinical settings comprise time-consuming visual ratings and complex neuroimage processing that require trained professionals. To combat these challenges, artificial intelligence (AI) techniques can aid clinicians in interpreting brain MRI for accurate diagnosis of neurodegenerative diseases but they require extensive validation. Thus, the aim of this study was to validate the use of AI-based AQUA (Neurophet Inc., Seoul, Republic of Korea) segmentation software in a Southeast Asian community-based cohort with normal cognition, mild cognitive impairment (MCI) and dementia.
METHOD:
Study participants belonged to the community-based Biomarker and Cognition Study in Singapore. Participants aged between 30 and 95 years, having cognitive concerns, with no diagnosis of major psychiatric, neurological or systemic disorders who were recruited consecutively between April 2022 and July 2023 were included. Participants underwent neuropsychological assessments and structural MRI, and were classified as cognitively normal, with MCI or with dementia. MRI pre-processing using automated pipelines, along with human-based visual ratings, were compared against AI-based automated AQUA output. Default mode network grey matter (GM) volumes were compared between cognitively normal, MCI and dementia groups.
RESULTS:
A total of 90 participants (mean age at visit was 63.32±10.96 years) were included in the study (30 cognitively normal, 40 MCI and 20 dementia). Non-parametric Spearman correlation analysis indicated that AQUA-based and human-based visual ratings were correlated with total (ρ=0.66; P<0.0001), periventricular (ρ=0.50; P<0.0001) and deep (ρ=0.57; P<0.0001) white matter hyperintensities (WMH). Additionally, volumetric WMH obtained from AQUA and automated pipelines was also strongly correlated (ρ=0.84; P<0.0001) and these correlations remained after controlling for age at visit, sex and diagnosis. Linear regression analyses illustrated significantly different AQUA-derived default mode network GM volumes between cognitively normal, MCI and dementia groups. Dementia participants had significant atrophy in the posterior cingulate cortex compared to cognitively normal participants (P=0.021; 95% confidence interval [CI] -1.25 to -0.08) and in the hippocampus compared to cognitively normal (P=0.0049; 95% CI -1.05 to -0.16) and MCI participants (P=0.0036; 95% CI -1.02 to -0.17).
CONCLUSION
Our findings demonstrate high concordance between human-based visual ratings and AQUA-based ratings of WMH. Additionally, the AQUA GM segmentation pipeline showed good differentiation in key regions between cognitively normal, MCI and dementia participants. Based on these findings, the automated AQUA software could aid clinicians in examining MRI scans of patients with cognitive impairment.
Humans
;
Cognitive Dysfunction/pathology*
;
Magnetic Resonance Imaging/methods*
;
Male
;
Middle Aged
;
Female
;
Aged
;
Artificial Intelligence
;
Software
;
Dementia/diagnostic imaging*
;
Aged, 80 and over
;
Adult
;
Singapore
;
Neuropsychological Tests
;
Brain/pathology*
;
Cohort Studies
;
Gray Matter/pathology*
;
Southeast Asian People
8.Factors associated with persistent high healthcare service utilisers in Singapore: A population health analysis.
Jemima Jia En KOH ; Yin Zhien TAN ; Hong Choon OH ; Beng Hoong POON
Annals of the Academy of Medicine, Singapore 2025;54(8):476-490
INTRODUCTION:
Albeit comprising a small portion of the hospital population, persistent high utilisers (PHUs) contribute disproportionately to healthcare expenditures. Amid rising healthcare costs and an ageing population, this study examines factors associated with PHUs among residents in eastern Singapore.
METHOD:
This is a retrospective study of eligible patients at Changi General Hospital in Singapore between 1 January 2020 and 31 December 2022. The study included Singapore citizens who utilised any services offered by CGH. Patients were classified as PHUs if their annual healthcare expenditure exceeded SGD3700 for 3 consecutive years. Demographics, healthcare utilisation patterns and clinical profiles were compared, and multivariable analyses were conducted to identify factors associated with PHUs.
RESULTS:
There were 267,838 eligible patients identified, with 5316 (2%) classified as PHUs. PHUs accounted for 18.4% of the total healthcare expenditure, with the highest costs attributed to inpatient services, followed by outpatient services. PHUs were more likely to be older, male, non-Chinese and of lower socioeconomic status. Conditions with the strongest association with PHUs were mental health disorders, chronic obstructive pulmonary disease, osteoporosis, asthma and renal diseases. Inpatient discharges from renal medicine, psychological medicine and general/geriatric medicine wards had the strongest association with PHUs. Utilisation of allied health services had the highest odds of being a PHU in outpatient care.
CONCLUSION
This study identified key factors associated with PHUs, providing invaluable insights into the planning of population health services within the hospital's geographical region. Targeted service development and process improvements of medical care can help mitigate persistent high utilisation.
Humans
;
Singapore/epidemiology*
;
Male
;
Female
;
Retrospective Studies
;
Middle Aged
;
Aged
;
Adult
;
Health Expenditures/statistics & numerical data*
;
Patient Acceptance of Health Care/statistics & numerical data*
;
Population Health
;
Aged, 80 and over
;
Young Adult
;
Adolescent
9.Surviving the year: Predictors of mortality in conservative kidney management.
Swee Ping TEH ; Boon Cheok LAI ; Ivan Wei Zhen LEE ; Shashidhar BAIKUNJE ; Sye Nee TAN ; Lee Ying YEOH
Annals of the Academy of Medicine, Singapore 2025;54(9):524-530
INTRODUCTION:
Conservative kidney management (CKM) is a recognised treatment option for selected patients with chronic kidney disease stage 5 (CKD G5), but prognostic indicators for mortality and optimal timing for palliative care transition remain uncertain.
METHOD:
This is a single-centre, prospective cohort study of CKD G5 patients who opted for CKM, conducted between April 2021 and September 2024, with longitudinal monitoring of Edmonton Symptom Assessment System Revised: Renal; Palliative Perfor-mance Scale (PPS); Resources Utilisation Group.Activities of Daily Living (RUG-ADL) scale; Clinical Frailty Score; Karnofsky Performance Score; and clinical and laboratory data. Primary outcomes included identifying baseline mortality predictors and validating the PPS for survival estimation. Cox proportional hazards models were used to identify independent predictors of mortality.
RESULTS:
Among 109 patients (mean age 79.8±7.3 years, 64.2% female), 62 (56.9%) died during follow-up. Multivariate analysis identified baseline estimated glomerular filtration rate (eGFR) (hazard ratio [HR] 1.32, 95% confidence interval [CI] 1.08.1.68, P<0.01) and serum albumin (HR 1.24, 95% CI 1.08.1.43, P<0.01) as predictors of 1-year mortality. Median survival varied by eGFR: 3.0 months (95% CI 0.6.2) for eGFR .5 mL/min/1.73 m2, 13.0 months (95% CI 9.1.16.9) for eGFR 6.10 mL/ min/1.73 m2, and 20.0 months (95% CI 16.5.23.5) for eGFR >10 mL/min/1.73 m2 (P<0.01). Subsequent PPS correlated strongly with survival, with median survival of 1.8 months for PPS <50, 5.3 months for PPS 50.60, and 7.9 months for PPS 70.80 (P=0.03).
CONCLUSION
Baseline eGFR and serum albumin predict 1-year mortality in CKM patients. PPS offers a practical tool for identifying patients requiring palliative care transition, supporting personalised care pathways and timely integration of palliative care.
Humans
;
Female
;
Male
;
Aged
;
Prospective Studies
;
Glomerular Filtration Rate
;
Palliative Care/methods*
;
Conservative Treatment/methods*
;
Aged, 80 and over
;
Prognosis
;
Serum Albumin/analysis*
;
Proportional Hazards Models
;
Activities of Daily Living
;
Singapore/epidemiology*
10.Circulating tumor DNA- and cancer tissue-based next-generation sequencing reveals comparable consistency in targeted gene mutations for advanced or metastatic non-small cell lung cancer.
Weijia HUANG ; Kai XU ; Zhenkun LIU ; Yifeng WANG ; Zijia CHEN ; Yanyun GAO ; Renwang PENG ; Qinghua ZHOU
Chinese Medical Journal 2025;138(7):851-858
BACKGROUND:
Molecular subtyping is an essential complementarity after pathological analyses for targeted therapy. This study aimed to investigate the consistency of next-generation sequencing (NGS) results between circulating tumor DNA (ctDNA)-based and tissue-based in non-small cell lung cancer (NSCLC) and identify the patient characteristics that favor ctDNA testing.
METHODS:
Patients who diagnosed with NSCLC and received both ctDNA- and cancer tissue-based NGS before surgery or systemic treatment in Lung Cancer Center, Sichuan University West China Hospital between December 2017 and August 2022 were enrolled. A 425-cancer panel with a HiSeq 4000 NGS platform was used for NGS. The unweighted Cohen's kappa coefficient was employed to discriminate the high-concordance group from the low-concordance group with a cutoff value of 0.6. Six machine learning models were used to identify patient characteristics that relate to high concordance between ctDNA-based and tissue-based NGS.
RESULTS:
A total of 85 patients were enrolled, of which 22.4% (19/85) had stage III disease and 56.5% (48/85) had stage IV disease. Forty-four patients (51.8%) showed consistent gene mutation types between ctDNA-based and tissue-based NGS, while one patient (1.2%) tested negative in both approaches. Patients with advanced diseases and metastases to other organs would be suitable for the ctDNA-based NGS, and the generalized linear model showed that T stage, M stage, and tumor mutation burden were the critical discriminators to predict the consistency of results between ctDNA-based and tissue-based NGS.
CONCLUSION
ctDNA-based NGS showed comparable detection performance in the targeted gene mutations compared with tissue-based NGS, and it could be considered in advanced or metastatic NSCLC.
Humans
;
Carcinoma, Non-Small-Cell Lung/pathology*
;
Circulating Tumor DNA/blood*
;
High-Throughput Nucleotide Sequencing/methods*
;
Female
;
Male
;
Lung Neoplasms/pathology*
;
Middle Aged
;
Mutation/genetics*
;
Aged
;
Adult
;
Aged, 80 and over

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