Heart rate is a crucial indicator of human health with significant physiological importance. Traditional contact methods for measuring heart rate, such as electrocardiograph or wristbands, may not always meet the need for convenient health monitoring. Remote photoplethysmography (rPPG) provides a non-contact method for measuring heart rate and other physiological indicators by analyzing blood volume pulse signals. This approach is non-invasive, does not require direct contact, and allows for long-term healthcare monitoring. Deep learning has emerged as a powerful tool for processing complex image and video data, and has been increasingly employed to extract heart rate signals remotely. This article reviewed the latest research advancements in rPPG-based heart rate measurement using deep learning, summarized available public datasets, and explored future research directions and potential advancements in non-contact heart rate measurement.
Humans ; Deep Learning ; Heart Rate/physiology* ; Photoplethysmography/methods* ; Video Recording ; Face ; Monitoring, Physiologic/methods* ; Signal Processing, Computer-Assisted

Hypertension is a major factor leading to cardiovascular events and death, and accurate blood pressure measurement is a fundamental means of evaluating blood pressure levels, achieving hypertension diagnosis, and observing antihypertensive efficacy. Compared to traditional brachial pressure, central aortic pressure (CAP) exhibits a stronger correlation with cardiovascular events. However, its non-invasive detection technology has not yet been widely adopted in clinical practice. In order to promote the clinical application of CAP and optimize blood pressure management, this article systematically summarizes the research progress of CAP estimation algorithms. These algorithms were categorized into three types: direct substitution methods, generalized model-based methods and personalized estimation methods. The characteristics and clinical adaptability of each algorithm were analyzed. The findings highlight that CAP estimation algorithms are moving towards personalization and non-linearity.
Algorithms ; Humans ; Blood Pressure Determination/methods* ; Hypertension/physiopathology* ; Arterial Pressure/physiology* ; Blood Pressure/physiology* ; Aorta/physiology*

OBJECTIVES: This cross-sectional study aims to explore the association between oral health status and cognitive function in Chinese elderly individuals. METHODS: The survey participants were composed of elderly people aged≥60 who were admitted to West China Hospital of Stomatology, Sichuan University from August 2022 to March 2024. They were divided into a cognitive impairment (CI) group and a healthy control (HC) group according to the Montreal Cognitive Assessment (MoCA) score. General information and oral health indicators of all elderly people were collected. Independent sample t-test and chi-square test were used for inter-group comparison, and multiple linear regression model was applied for multivariate analysis of MoCA scores. RESULTS: A total of 402 elderly people were included in the study, and the number of remaining teeth in the CI group was significantly lower than that in the HC group. The decayed, missing, filled teeth index, debris index-simplified, gingival index, probing depth (PD), and clinical attachment loss in the CI group were all significantly higher than those in the HC group. There was no difference in denture wearing between the two groups. The results of multiple linear regression showed that there was a correlation between the number of remaining teeth and PD and MoCA scores after correcting for confounding factors. CONCLUSIONS Elderly individuals with CI have more prominent oral health issues compared to those with normal cognitive function. There may be a bidirectional relationship between the number of remaining teeth, PD, and cognitive function in elderly people.
Humans ; Oral Health ; Aged ; Cross-Sectional Studies ; Cognitive Dysfunction/epidemiology* ; Male ; Female ; China/epidemiology* ; Middle Aged ; Linear Models ; Aged, 80 and over ; Periodontal Index ; Cognition

OBJECTIVES: This study aimed to investigate the perception of dental outpatient care quality from multiple perspectives of administrators, physicians, nurses, and patients and propose nursing care quality evaluation indices that are consistent with the clinical reality to provide reference for the construction of a scientific, systematic, and comprehensive dental outpatient care quality evaluation system. METHODS: A total of 39 interviewees, including 7 administrators, 11 doctors, 11 nurses, and 10 patients, were selected for semi-structured in-depth interviews in five regionally representative tertiary-level A stomatological specialty hospitals nationwide during January-April 2024 by using a multistage sampling method. Colaizzi 7-step analysis was used to analyze and summarize the interview data. Themes were extracted on the basis of the Structure-Process-Outcome (SPO) three-dimensional quality assessment model. RESULTS: Five main themes and 15 secondary themes were extracted from three quality dimensions: structure, process, and result. The related topics of structural quality were as follows: disinfection and isolation norms, equipment and consumable management, nursing manpower ratio and nurse education structure, and emergency capability. The related topics of process quality were as follows: pre-diagnosis risk assessment, patient triage and guidance, communication and attitude, health education, humanistic care, continuous care, specialty operation, and four-hand operation. The related topics of result quality were as follows: satisfaction, adverse event management and analysis, effective complaints and disputes. CONCLUSIONS Structure quality is the foundation, process quality is the core, and result quality is the key in the evaluation of the quality of oral outpatient care. The standardization of disinfection and isolation, equipment and consumable management, allocation of reasonable nursing manpower and post capacity, implementation of high-quality nursing services, and improvement of the quality and satisfaction of medical cooperation are necessary guarantees to ensure the quality of oral outpatient care.
Humans ; Quality of Health Care ; Ambulatory Care/standards* ; Dental Care/standards* ; Outpatients

OBJECTIVES: This study aimed to construct an evaluation index system for nursing quality management in outpatient dental clinics based on the structure-process-outcome model and provide an objective standard for the evaluation of nursing quality in outpatient dental clinics. METHODS: Through literature review, multi-subject interviews, and expert meetings, the first draft of the evaluation index for nursing quality management in outpatient dental clinics was formulated. The Delphi method was adopted to select and invite 15 experts in the fields of hospital infection management, nursing management, and specialized oral care from across the country to modify the first draft. RESULTS: The positive coefficients of the experts in the two rounds of consultation were 86.7% and 92.3%, respectively. The total authority coefficients of the experts were 0.791 and 0.717, respectively. The mean scores of the importance and feasibility of the third-level indices in the two rounds of consultation were all ≥4.333; the coefficients of variation were all ≤0.150; and the Kendall's coordination coefficients were 0.308 and 0.184 respectively, with P<0.05 for all. These results indicated that the experts were motivated to participate in this study. They recognized the importance and feasibility of the overall items in this index system, and their opinions were relatively consistent. Finally, an evaluation index system, which included 3 first-level indices, 7 second-level indices, 22 third-level indices, and 69 index connotations, for nursing quality management in outpatient dental clinics was determined. The weights of the three first-level indicators were all 0.333. Patient satisfaction (0.076, outcome dimension), hand hygiene (0.061, outcome dimension), chair care ratio (0.057, structural dimension), and turnover rate (0.057, structural dimension) were the top tertiary indicators in terms of portfolio weight. CONCLUSIONS The construction method of the evaluation index system for nursing quality management in outpatient dental clinics is scientific and reliable. It can provide a reference for the evaluation of the management level of nursing quality in outpatient dental clinics and promote the continuous improvement of nursing quality in outpatient dental clinics.
Humans ; Dental Clinics ; Delphi Technique

Radical gastrectomy is the core of comprehensive treatment for patients with locally advanced gastric cancer,while reasonable and standardized lymphadenectomy is the key to radical gastrectomy.With the continuous development of treatment methods and therapeutic drugs for advanced gastric cancer, it is worth exploring whether the scope of lymphadenectomy needs to be changed. Neoadjuvant immunotherapy has brought a new breakthrough for locally advanced gastric cancer, increased pathological complete response rate, reduced clinical stage of tumors, and increased radical surgical resection rate, but it has not brought long-term benefits to patients. Lymph nodes play an important role in human anti-tumor immune response, and some basic studies suggest that preserving some normal lymph nodes may be more helpful to enhance the efficacy of immunotherapy. Thus, in the era of immunotherapy, the extent of lymph node dissection for locally advanced gastric cancer needs to balance continuous drug benefits, patient quality of life, and survival benefits, awaiting further high-quality clinical research for determination. Questions such as how to differentiate between normal and metastatic lymph nodes, how to rationally preserve normal lymph nodes, and whether preserving partial lymph node function can lead to greater benefits for patients from immunotherapy warrant further exploration.

Radical gastrectomy is the core of comprehensive treatment for patients with locally advanced gastric cancer,while reasonable and standardized lymphadenectomy is the key to radical gastrectomy.With the continuous development of treatment methods and therapeutic drugs for advanced gastric cancer, it is worth exploring whether the scope of lymphadenectomy needs to be changed. Neoadjuvant immunotherapy has brought a new breakthrough for locally advanced gastric cancer, increased pathological complete response rate, reduced clinical stage of tumors, and increased radical surgical resection rate, but it has not brought long-term benefits to patients. Lymph nodes play an important role in human anti-tumor immune response, and some basic studies suggest that preserving some normal lymph nodes may be more helpful to enhance the efficacy of immunotherapy. Thus, in the era of immunotherapy, the extent of lymph node dissection for locally advanced gastric cancer needs to balance continuous drug benefits, patient quality of life, and survival benefits, awaiting further high-quality clinical research for determination. Questions such as how to differentiate between normal and metastatic lymph nodes, how to rationally preserve normal lymph nodes, and whether preserving partial lymph node function can lead to greater benefits for patients from immunotherapy warrant further exploration.

Objective To analyze the characteristics of blood lipid metabolism in patients with Wilson's disease(WD)and understand the influencing factors of abnormal blood lipid.Methods The clinical data of 170 patients with WD and 59 healthy people were collected from June 2021 to March 2023,the blood lipids of the two groups were compared.To compare the characteristics of blood lipid metabolism in WD patients with different gender,age,body mass index(BMI)and disease types.According to whether the blood lipid was abnormal or not,WD patients were divided into normal blood lipid group and abnormal blood lipid group,and the biochemical indexes of the two groups were compared.The general situation and biochemical indicators were included in the single factor regression analysis,and the related factors that might affect blood lipid metabolism were screened out.The related factors of single factor screening were included in multivariate Logistic regression analysis to determine the abnormal factors affecting blood lipid.Results The triglyceride(TG)level of WD patients was lower than that of healthy controls,the difference was statistically significant(P<0.05).The rate of dyslipidemia in WD patients was 40.59%.Low density liporotein cholestrol in female WD patients was significantly lower than that in male WD patients(P<0.05).The values of BMI,alanine aminotransferase(ALT)and uric acid(UA)in dyslipidemia group of WD patients were significantly higher than those in normal group(all P<0.05).Multivariate Logistic regression analysis showed that BMI 24～28(OR=4.526,P<0.05),BMI>28(OR=6.360,P<0.05),UA(OR=1.006,P<0.01)and hyaluronic acid(HA)(OR=1.003,P<0.01)were associated with the high risk of dyslipidemia,with statistical significance.Conclusions WD patients have a high incidence of abnormal lipid metabolism,mainly with low high density liporotein cholestrol and high TG.The dyslipidemia in WD patients is affected by many factors.BMI,UA and HA are independent risk factors for dyslipidemia in WD patients.

Temporomandibular joint (TMJ) diseases are common clinical conditions. The number of patients with TMJ diseases is large, and the etiology, epidemiology, disease spectrum, and treatment of the disease remain controversial and unknown. To understand and master the current situation of the occurrence, development and prevention of TMJ diseases, as well as to identify the patterns in etiology, incidence, drug sensitivity, and prognosis is crucial for alleviating patients′suffering.This will facilitate in-depth medical research, effective disease prevention measures, and the formulation of corresponding health policies. Cohort construction and research has an irreplaceable role in precise disease prevention and significant improvement in diagnosis and treatment levels. Large-scale cohort studies are needed to explore the relationship between potential risk factors and outcomes of TMJ diseases, and to observe disease prognoses through long-term follw-ups. The consensus aims to establish a standard conceptual frame work for a cohort study on patients with TMJ disease while providing ideas for cohort data standards to this condition. TMJ disease cohort data consists of both common data standards applicable to all specific disease cohorts as well as disease-specific data standards. Common data were available for each specific disease cohort. By integrating different cohort research resources, standard problems or study variables can be unified. Long-term follow-up can be performed using consistent definitions and criteria across different projects for better core data collection. It is hoped that this consensus will be facilitate the development cohort studies of TMJ diseases.

Objective:To understand the morphologic and functional changes of ventricles between pre- and post- cone reconstruction(CR) surgery in children with Ebstein’s anomaly(EA).Methods:The clinical data of children with EA who underwent CR and cardiac magnetic resonance(CMR) in Shanghai Children’s Medical Center between July 2011 to April 2019 were collected and analyzed. Ventricular functions were assessed with the use of ejection fraction(EF), stroke volume index(SVI), cardiac output(CO), and cardiac index(CI). Ventricular morphologies were assessed with the use of end-diastolic ventricular volume(EDV), end-diastolic ventricular volume index(EDVI) and ventricular cine images. Paired student t tests and Wilcoxon rank sum tests were used for statistical analysis. Results:There were a total of 32 children with EA who underwent CR and CMR, with 13 males and 19 females, a median operative age of 2.9 years old(0.6-15.5 years old), and a mean follow-up time of(4.4±1.9) years. Seven patients had both preoperative and postoperative CMR, with a mean follow-up time of(3.3±1.4) years; Eleven patients had two or more postoperative CMR, with a mean interval time of(1.9±1.0) years. After the surgery, the median tricuspid-regurgitation grade decreased from 3 to 2, and the median New York Heart Association functional class improved from 2.5 to 1, the left ventricle(LV)-SVI, LV-EDV and LV-EDVI increased from 29.8 ml/m 2 to 43.2 ml/m 2( P=0.039), from 56.4 ml to 86.9 ml( P=0.004), from 50.5 ml/m 2 to 68.4 ml/m 2( P=0.022), respectively. And the long-term LV-EDV increased from 56.6 ml to 74.7 ml( P=0.002) when compared to that of early postoperative. There was no significant differences in right ventricle(RV)-EF, RV-SVI, RV-CO, RV-CI, RV-EDV and RV-EDVI between pre- and post- CR( P>0.05); but the long-term postoperative RV-CO and RV-EDV increased from 3.1 L/min to 4.1 L/min( P=0.008), from 67.5 ml to 96.5 ml( P<0.001), respectively, when compared with those of early postoperative. Conclusion:CR improves the function and morphology of both ventricles in children with EA. And although postoperative ventricles grow well, RV dysfunction persists.