Peking Union Medical College Research Articles

Bibliometric Analysis of Hot Trends and Future Prospects in Clinical Fat Research from 2014 to 2023.

Significant advancements have been made in the field of clinically relevant fat research over the past decade. A systematic analysis of publications in this domain is essential. This study aims to identify research hotspots and evolving trends in clinically relevant adipose tissue research through bibliometric analysis. Publications related to fat clinical research from 2014 to 2023 were extracted and analyzed from the Web of Science (WOS) Core Collection database. The data from this 10-year period were divided into two 5-year intervals (2014-2018 and 2019-2023) for analysis. Various aspects such as author keywords, countries, institutions, authors, and journal co-occurrence were studied. The data were analyzed and visualized using VOSviewer. After selecting the retrieval strategy, a total of 892 publications were extracted for the period 2014-2018 and 1622 publications for 2019-2023. Comparing the two intervals, the United States was the country with the highest number of publications (354 publications vs. 546 publications). The institution with the highest output was Peking Union Medical College (26 publications vs. 87 publications). The most prolific author was Klinger M (4 publications) vs. Hua Zuguang (18 publications). The most active journal was Plastic and Reconstructive Surgery (178 publications) vs. Aesthetic Surgery Journal (244 publications). The most active research areas were focused on "fat grafting," "liposuction," and "body contouring," with a rapid increase in research related to "facial rejuvenation" using fat grafting, suggesting it may be the next research hotspot. Clinical research related to fat is rapidly evolving. This study provides a visual network and trend analysis of fat research over the past decade. This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine Ratings, please refer to Table of Contents or online Instructions to Authors www.springer.com/00266 .

Construction and validation of a clinical prediction model for sepsis using peripheral perfusion index to predict in-hospital and 28-day mortality risk.

Sepsis is a clinical syndrome caused by infection, leading to organ dysfunction due to a dysregulated host response. In recent years, its high mortality rate has made it a significant cause of death and disability worldwide. The pathophysiological process of sepsis is related to the body's dysregulated response to infection, with microcirculatory changes serving as early warning signals that guide clinical treatment. The Peripheral Perfusion Index (PI), as an indicator of peripheral microcirculation, can effectively evaluate patient prognosis. This study aims to develop two new prediction models using PI and other common clinical indicators to assess the mortality risk of sepsis patients during hospitalization and within 28 days post-ICU admission. This retrospective study analyzed data from sepsis patients treated in the Intensive Care Unit of Peking Union Medical College Hospital between December 2019 and June 2023, ultimately including 645 patients. LASSO regression and logistic regression analyses were used to select predictive factors from 35 clinical indicators, and two clinical prediction models were constructed to predict in-hospital mortality and 28-day mortality. The models' performance was then evaluated using ROC curve, calibration curve, and decision curve analyses. The two prediction models performed excellently in distinguishing patient mortality risk. The AUC for the in-hospital mortality prediction model was 0.82 in the training set and 0.73 in the validation set; for the 28-day mortality prediction model, the AUC was 0.79 in the training set and 0.73 in the validation set. The calibration curves closely aligned with the ideal line, indicating consistency between predicted and actual outcomes. Decision curve analysis also demonstrated high net benefits for the clinical utility of both models. The study shows that these two prediction models not only perform excellently statistically but also hold high practical value in clinical applications. The models can help physicians accurately assess the mortality risk of sepsis patients, providing a scientific basis for personalized treatment.

Comparing vacuum‐assisted closure against conventional approach in severe deep neck infection: A retrospective case‐control study

AbstractObjectivesTo compare the effectiveness of vacuum‐assisted closure (VAC) against traditional drainage technique, using a retrospective case‐control study design, in terms of managing deep neck infections (DNIs).MethodsPatients presenting to Peking Union Medical College Hospital diagnosed with DNIs were recruited in this study. We analyzed the clinical characteristics of DNI patients and divided them into (a) VAC placement group (26 cases) and (b) traditional drainage group (57 cases) according to whether VAC was placed. The differences in length of stay (LOS), wound healing time, and debridement frequency were compared between the two groups.ResultsEighty‐three patients had multiple‐space infections, i.e. infection at two or more sites. The debridement frequency of the VAC group was significantly lower than that of the traditional drainage group (p = 0.001). The wound healing time of the traditional drainage group and VAC group was 38 days (a range of 13–98 days) and 40 days (a range of 11–106 days), respectively; the average LOS was 15 days (a range of 2–68 days) and 16 days (a range of 4–35 days), respectively; and the debridement frequencies were one time (a range of 0–3 times) and zero times (a range of 0–2 times), respectively. The two groups did not differ significantly in wound healing time and hospitalization duration (p = 0.319 and 0.937).ConclusionsVAC treatment of DNIs has significant advantages in reducing the frequency of debridement and patient suffering, but it does not show significant advantages in wound healing. Randomized trials are still needed to demonstrate its efficacy.

A single-center prospective study of vitamin D levels and its supplementary effect in the first trimester

Objective: To investigate vitamin D levels and the effect of exogenous vitamin D supplementation in the first trimester among pregnant women in our center. Methods: This was a prospective cohort study. A total of 98 women in the first trimester who were followed-up regularly in Peking Union Medical College Hospital from December 1st 2020 to December 1st 2021 were enrolled. Subjects who had medical conditions that affect vitamin D absorption or metabolism were excluded. Questionnaires were administered, and 25-hydroxyvitamin D [25(OH)D] levels were detected using liquid chromatography tandem mass spectrometry (LC/MS/MS) method. According to the basic 25(OH)D level, different dosages of exogenous vitamin D were supplemented. After 4 weeks, 25(OH)D levels were detected again to evaluate the effect of supplementation. T test, analysis of variance, χ2 test, and multiple linear regression analysis were used for analysis. Results: The mean age of enrolled subjects was (33.5±4.0) years. The baseline 25(OH)D level was (41.2±20.0) nmol/L. Briefly, 70.4% (69/98) subjects were deficient in vitamin D, and 42.9% (42/98) patients were using vitamin D supplementation at the time of 25(OH)D testing. Single-factor analysis showed that vitamin D supplementation (t=-4.21, P<0.001), season (t=2.59, P=0.011), and nut-eating frequency (t=2.67, P=0.009) were related to 25(OH)D levels. Multiple linear regression analysis showed that only vitamin D supplementation had a relationship with 25(OH)D level (B=13.84, P=0.006). According to the baseline 25(OH)D level, 400-5 000 U/d vitamin D3 was supplemented regularly for (4.1±2.5) weeks, and 25(OH)D levels significantly increased after supplementation [(64.1±18.1) vs (37.3±16.6) nmol/L, t=-9.36, P<0.001]. The ascending range was negatively associated with basic 25(OH)D level (B=-0.66, P<0.001) and positively associated with supplementary dosage (B=0.51, P<0.001). 25(OH)D levels increased by 0.51 nmol/L on average per 1 μg (40 U) of vitamin D supplementation daily. Conclusions: The proportion of vitamin D deficiency was high in the first trimester among pregnant women in our center. Exogenous vitamin D supplementation could significantly increase 25(OH)D levels, and the effect was negatively associated with basic 25(OH)D level but positively associated with supplementary dosage.

Clinical characteristics and outcomes of cerebral venous sinus thrombosis in patients with antiphospholipid syndrome.

Cerebral venous sinus thrombosis (CVST) is a rare but serious manifestation of venous thrombosis in patients with antiphospholipid syndrome (APS). This study investigated the risk factors, clinical characteristics and prognosis of CVST in APS patients. This retrospective cohort study included all thrombotic APS (tAPS) patients from Peking Union Medical College Hospital (PUMCH) from April 2005 to August 2023. Demographic characteristics, laboratory data and thrombotic risk factors were compared between tAPS-CVST group and tAPS-non-CVST group. Kaplan-Meier survival analysis was utilized to compare the recanalization rate and the recurrence rate. A total of 453 APS patients were enrolled, and 40 (8.8%) APS patients were with CVST. The median age of the APS-CVST patients was 27 (21.25, 32.75) years, and 72.5% were females. In 50% of these patients, CVST was the initial symptom of APS, with headache being the most prevalent clinical symptom (95%). Involvement of more than two venous sinuses were observed in 79.5% of patients, with the transverse sinus (79.5%) and sigmoid sinus (74.4%) being the most commonly affected sites. Oral contraceptives, intracranial infections and malignancy were identified as risk factors of APS-CVST. There were no statistically significant differences in baseline characteristics or the distribution of antiphospholipid antibodies profiles between the two groups. After a median follow-up of 24 (12, 52) months, 21 patients (52.5%) experienced recanalization, and 13 patients (32.5%) had a thrombotic recurrence. Survival analysis indicated that adequate anticoagulant therapy significantly contributed to recanalization (HR 6.27, 95% CI 2.616-15.02, P = 0.003), while continuous anticoagulant therapy was highly effective in reducing the recurrence of thrombotic events (HR 0.14, 95% CI 0.0447-0.4328, P = 0.0007). CVST should be considered in APS patients who experience sudden onset headaches, particularly those with thrombotic risk factors, such as the use of oral contraceptives, intracranial infections and malignancy. Continuous and adequate anticoagulant therapy is pivotal and beneficial for achieving recanalization and prevention of recurrence. Key Points • The prevalence of CVST in patients with APS may be underestimated. • APS-CVST is associated with special risk factors, including pregnancy, intracranial infection, oral contraceptives and tumors. • Long-term and adequate anticoagulation therapy can increase the vascular recanalization rate and reduce thrombosis recurrence.

Expanded carrier screening for 216 diseases in a cohort of 3 097 healthy Chinese individuals of childbearing age

Objective: To determine the carrier frequency and hot-spot variants of a custom-designed expanded carrier screening (ECS) panel with 216 diseases (216-ECS panel) within a Chinese population of childbearing age. Methods: Whole-exome sequencing data from a cohort of 3 097 unrelated healthy individuals (including 1 424 couples) from Peking Union Medical College Hospital between January 2013 and December 2023 were analyzed. Totally 220 genes which inherited in a recessive manner of 216-ECS panel were included in the analysis. The analysis included variant carrier rate, gene carrier rate, cumulative carrier rate, at-risk couple rates, and variant spectrum. Results: (1) Pathogenic variants were identified in 1 472 (47.53%, 1 472/3 097) individuals, with an average of 0.65 pathogenic variants per individual. The rate of at-risk couples was 3.93% (56/1 424). (2) A total of 180 genes were identified, with 16 genes exhibiting a gene carrier rate of ≥1% and 33 genes having a rate of ≥0.5%, most of which were associated with inherited metabolic diseases. Noteworthy genes with higher gene carrier rates and high-frequency variants included GJB2: c.235del, PAH: c.728G>A, ATP7B: c.2333G>T, SLC26A4: c.919-2A>G, GALC: c.1901T>C, POLG: c.2890C>T, SLC22A5: c.1472C>G, USH2A: c.2802T>G, SLC25A13: c.852_855del, GAA: c.761C>T and c.752C>T. Conclusion: This study offers a focused analysis of carrier frequencies and hot-spot variants of 216 diseases of the ECS panel constructed by our laboratory among the Chinese population, laying a foundation for the development of ECS programs tailored to the Chinese population.

Clinical characteristics and prognosis of brain metastasis in locally advanced rectal cancer

Objective: To investigate the clinical characteristics of brain metastases after radical surgery for locally advanced rectal cancer (LARC). Methods: The clinical characteristics of LARC with brain metastases treated in the Department of General Surgery, Peking Union Medical College Hospital from 2013 to 2023 were retrospectively analyzed. The inclusion criteria were rectal adenocarcinoma within 15 cm of the anal verge and having undergone radical surgery, and the exclusion criterion was primary malignant tumor of the brain. The main outcomes were overall survival (OS), disease-free survival (DFS), and disease-specific overall survival (determined as the interval between occurrence of brain metastasis to death from any causes). The Kaplan-Meier method was used for survival analysis. Results: We identified 4500 patients with LARC, 20 (0.4%) of whom had brain metastases. The mean age of patients with brain metastases was 63.8±9.3 years. They comprised five women and 15 men. The brain was the first site of metastasis in four patients (20%) whereas 18 patients had heterochronous extracranial metastases before brain metastasis. Two patients also had multi-organ metastases. The most common manifestations of brain metastases were dizziness and headache (five patients, 25%), sudden onset of limb weakness (four, 20%), sudden speech impairment (two, 10%), and polyopia (two, 10%). The metastases were diagnosed during follow-up in three patients (15%). Four of the patients were asymptomatic (20%). Treatment approaches included surgical resection (six patients, 30%), chemoradiotherapy (nine, 45%), and palliative (five, 25%). The median follow-up time was 45.5 (4-112) months until October 2023. 1y-OS, 3y-OS, and 5y-OS were 95.0%, 62.9%, and 43.3%, respectively. 1y-DFS, 3y-DFS, and 5y-DFS were 55.0%, 25.0%, and 5.0%, respectively. With brain metastasis as the starting point, the median duration of survival was 16 (10.2-21.8) months. Conclusion: The incidence of brain metastasis is relatively low in patients with LARC, who often have multiple synchronous extracranial metastases. Brain metastases lack specific manifestations and more often occur in male patients. Surgical intervention or combined radiotherapy and chemotherapy may improve disease-specific survival to a certain extent. However, the overall prognosis remains poor.

Influence of COVID-19 pandemic on prevalence and genotype distribution of HPV in cervical cancer screening population

BackgroundHuman Papillomavirus (HPV) DNA screening was a crucial element in the fight against cervical cancer and had been adopted in many countries, including China. However, the onset of the COVID-19 pandemic in March 2020 disrupted this program significantly.MethodsThe aim of this study is to investigate the prevalence and distribution of HPV genotypes among the population undergoing cervical cancer screening during the pandemic period. From January 2017 to December 2022, Peking Union Medical College Hospital gathered 45,496 cervical swabs from individuals undergoing cervical cancer screening. These samples were analyzed to detect fifteen high-risk HPV (HR-HPV) DNA types and a combination of two low-risk HPV (LR-HPV) types.ResultsThe study revealed an overall infection rate of 11.24% (5,114/45,496), with 11.06% (5,032/45,496) of individuals infected with HR-HPV. The number of HPV screening patients and the infection rates of HPV, HR-HPV, LR-HPV, multiple genotype HPV (M-HPV), and single genotype HPV (S-HPV) during the pandemic were lower than those observed before the pandemic. Moreover, the age group with the highest percentage of infected individuals was under 45–49 years, with HPV52, HPV58, HPV16, and HPV51 being the most prevalent genotypes. Notably, HPV66 emerged as the fifth most commonly detected genotype during the pandemic. Additionally, among the eleven age groups examined, women under 25 exhibited the highest detection rate, with HPV52 and HPV16 infection rates exceeding those observed in the pre-pandemic period.ConclusionsThe findings of this study offer significant insights for shaping HPV prevention strategies and enhancing cervical cancer screening initiatives in China following the epidemic.

Risk factors of severe postpartum hemorrhage in pregnant women with placenta previa or low-lying placenta: a retrospective cohort study

BackgroundThe severe postpartum hemorrhage (SPPH) leads to dangerous maternal conditions, and its rate is still increasing and the trend in related risk factors is changing. Placenta-related problems remain the high-risk factor for SPPH. The object is to investigate the prevalence and the risk factors of the severe postpartum hemorrhage in pregnant women with placenta previa or low-lying placenta.MethodA retrospective analysis of pregnant women with placenta previa or low-lying placenta after 28 weeks gestation from May 2018 to May 2023 in the Peking Union Medical College Hospital was conducted. The primary outcome was severe postpartum hemorrhage defined as blood loss ≥ 1000 mL within 24 h of childbirth, or with signs or symptoms of low blood volume requiring transfusion of ≥ 4U of red blood cells. Univariate and multivariate logistic regression were used to identify potential risk factors of severe postpartum hemorrhage and receiver operating curve to evaluate the prediction performance.ResultsOf the 14,964 women, 201 met the inclusive criteria. SPPH rate was 1.3% overall and 18.9% in women with placenta previa or low-lying placenta. Weight (aOR = 0.93, 95%CI 0.87–0.99), increta or percreta placenta (aOR = 7.93, 95%CI 2.53–24.77) were the risk factors. The area under the ROC curve was 0.69(95%CI 0.59–0.80) for increta or percreta placenta alone, and 0.72(95%CI 0.62–0.82) for the combination of times of cesarean sections and anterior placenta.ConclusionsPlacenta accreta spectrum was the key independent risk factor of SPPH in women with placenta previa or low-lying placenta. Antenatal risk assessment of SPPH in these population is highly desirable and optimal intervention could be planned.

Comparative analysis of non-tuberculous mycobacterial lung disease and lung colonization: a case-control study

BackgroundNon-tuberculous mycobacteria (NTM) are common opportunistic pathogens, and the most common infection site is lung. NTM are found commonly in the environment. Many patients have NTM lung colonization (NTM-Col). NTM lung disease (NTM-LD) have no specific sympotms, though it is hard to differentiate NTM-LD and NTM-Col under this circumstance. The aim of this study is to explore the differences between NTM-LD and NTM-Col for future clinical diagnosis and treatment.MethodsWe retrospectively enrolled patients who had a history of NTM isolated from respiratory specimens in Peking Union Medical College Hospital (PUMCH) from January 1st, 2013 to December 31st, 2022. Patients were classified into NTM-LD group and NTM-Col group. Demographic characteristics, clinical manifestations, laboratory tests and imaging findings of the two groups were compared. Comparative analysis was also performed in peripheral blood lymphocyte subsets among three groups.ResultsA total of 127 NTM-LD patients and 37 NTM-Col patients were enrolled. Proportion of patients with bronchiectasis was higher in NTM-LD group than in NTM-Col group (P = 0.026). Predominant NTM isolates were Mycobacterium avium complex (MAC). NTM-LD group had a higher proportion of Mycobacterium intracellulare (P = 0.004). CD4+ T cells counts was lower in NTM-LD group (P = 0.041) than in NTM-Col group. Imaging finding of bronchiectasis (P = 0.006) was higher in NTM-LD group than in NTM-Col group. Imaging findings of bronchiectasis (OR = 6.282, P = 0.016), and CD4+ T cell count (OR = 0.997, P = 0.012) were independent associated factors for differential diagnosis between NTM-LD and NTM-Col.ConclusionNTM isolates from both NTM-LD and NTM-Col patients were predominantly MAC, with a higher Mycobacterium intracellulare isolation rate in NTM-LD group. Imaging findings of bronchiectasis and lower peripheral blood CD4+ T cell count may be helpful to separate the diagnosis of NTM-LD from NTM-Col.

Effectiveness and safety of azvudine versus nirmatrelvir-ritonavir in adult patients infected with COVID-19 omicron strains: a retrospective study in Beijing

The study was to evaluate the clinical outcomes of azvudine versus nirmatrelvir-ritonavir against omicron strains of coronavirus disease 2019 infections and determine their comparative effectiveness. This retrospective study included 716 patients who received nirmatrelvir-ritonavir (NR group) or azvudine (FNC group) at Peking Union Medical College Hospital between 1 November 2022 and 27 February 2023. Patients in the FNC group (n = 304) were younger, exhibited less severe symptoms, started antiviral therapy later, received corticosteroids more frequently, and used tocilizumab less frequently than patients in the NR group (n = 412). Within 28 d of therapy, 40 (9.7%) and 20 (6.6%) deaths were in the NR and FNC groups, respectively. No differences were observed between drugs and mortality rates (odds ratio [OR] 0.78, 95% CI 0.40–1.5, P = 0.45), clinical improvement (OR 0.79, 95% CI 0.79–1.3, P = 0.38), and clinical progression (OR 1.0, 95% CI 0.58–1.8, P = 0.96). More patients in the NR group experienced platelet decline than those in the FNC group (17.6% vs. 8.9%, P = 0.034). This study indicated that the effectiveness and safety of azvudine were comparable to those of nirmatrelvir-ritonavir.

Liquid nitrogen cryotherapy effectively and safely improves response of thick Actinic Keratoses lesions by 5-aminolevulinic acid-based photodynamic therapy: a randomized, prospective, single-blind trial

BackgroundActinic keratoses (AK) may progress into squamous cell carcinoma. Many combination therapies were used to improve the clearance rate. However, there are limited studies on the efficacy and safety of lesion-directed Liquid nitrogen cryotherapy combined with field-directed photodynamic therapy (PDT). ObjectiveThis study is aimed to determine the efficacy and safety of Liquid nitrogen cryotherapy combined with PDT in Chinese patients with actinic keratosis. MethodsA total of 61 patients with AK were selected at the Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College between August 2018 and August 2023. They were randomly divided into PDT plus Liquid nitrogen cryotherapy group(LN-PDT)and control PDT group(C-PDT)with 30 patients and 31 patients, respectively. 27 patients in the LN-PDT group and 28 patients in the C-PDT group completed the clinical sessions. Efficacy, adverse effects, and cosmetic outcomes were recorded and compared between the two groups. Results3 months after the final treatment, the clearance rates for total AK lesions were 97.4%(449/461) in the LN-PDT group and 93.4%(456/488)in the C-PDT group (P < 0.05). For grade I AK lesions, the clearance rates were 99.2% (234/237) for the LN-PDT group and 98.3% (237/241) for the C-PDT group (P >0.05). For grade II lesions, the clearance rates were 97.5% (156/160) for the LN-PDT group and 91.9% (172/186) for the CPDT group (P < 0.05). For grade III lesions, the clearance rates of the LN-PDT and C-PDT groups were 87.5% (58/64) and 78.7% (47/61), respectively (P < 0.05). The two groups had no significant differences in pain, erythema, edema, hyperpigmentation and scarring. Cosmetic outcomes mainly were excellent or good in both groups with no significant difference. ConclusionLiquid nitrogen cryotherapy combined with PDT showed higher efficacy on grade II and grade III AK lesions than PDT alone. The two groups have similar adverse effects and cosmetic outcomes.

Clinical features of Guillain-Barré syndrome and chronic inflammatory demyelinating polyradiculoneuritis associated with SLE

ObjectiveWe report on the clinical characteristics, treatments and outcomes of Guillain-Barré syndrome (GBS) and chronic inflammatory demyelinating polyradiculoneuritis (CIDP) associated with SLE.MethodsPatients treated at Peking Union Medical College Hospital between...

Integrating deep phenotyping with genetic analysis: a comprehensive workflow for diagnosis and management of rare bone diseases.

Phenotypes play a fundamental role in medical genetics, serving as external manifestations of underlying genotypes. Deep phenotyping, a cornerstone of precision medicine, involves precise multi-system phenotype assessments, facilitating disease subtyping and genetic understanding. Despite their significance, the field lacks standardized protocols for accurate phenotype evaluation, hindering clinical comprehension and research comparability. We present a comprehensive workflow of deep phenotyping for rare bone diseases from the Genetics Clinic of Skeletal Deformity at Peking Union Medical College Hospital. Our workflow integrates referral, informed consent, and detailed phenotype evaluation through HPO standards, capturing nuanced phenotypic characteristics using clinical examinations, questionnaires, and multimedia documentation. Genetic testing and counseling follow, based on deep phenotyping results, ensuring personalized interventions. Multidisciplinary team consultations facilitate comprehensive patient care and clinical guideline development. Regular follow-up visits emphasize dynamic phenotype reassessment, ensuring treatment strategies remain responsive to evolving patient needs. In conclusion, this study highlights the importance of deep phenotyping in rare bone diseases, offering a standardized framework for phenotype evaluation, genetic analysis, and multidisciplinary intervention. By enhancing clinical care and research outcomes, this approach contributes to the advancement of precision medicine in the field of medical genetics.

Development and validation of a nomogram for predicting clinically relevant delayed gastric emptying in patients undergoing total pancreatectomy

BackgroundCurrent research on delayed gastric emptying (DGE) after pancreatic surgery is predominantly focused on pancreaticoduodenectomy (PD), with little exploration into DGE following total pancreatectomy (TP). This study aims to investigate the risk factors for DGE after TP and develop a predictive model.MethodsThis retrospective cohort study included 106 consecutive cases of TP performed between January 2013 and December 2023 at Peking Union Medical College Hospital (PUMCH). After applying the inclusion criteria, 96 cases were selected for analysis. These patients were randomly divided into a training set (n = 67) and a validation set (n = 29) in a 7:3 ratio. LASSO regression and multivariate logistic regression analyses were used to identify factors associated with clinically relevant DGE (grades B/C) and to construct a predictive nomogram. The ROC curve, calibration curve, decision curve analysis (DCA), and clinical impact curve (CIC) were employed to evaluate the model's prediction accuracy.ResultsThe predictive model identified end-to-side gastrointestinal anastomosis, intraoperative blood transfusion, and venous reconstruction as risk factors for clinically relevant DGE after TP. The ROC was 0.853 (95%CI 0.681–0.900) in the training set and 0.789 (95%CI 0.727–0.857) in the validation set. The calibration curve, DCA, and CIC confirmed the accuracy and practicality of the nomogram.ConclusionWe developed a novel predictive model that accurately identifies potential risk factors associated with clinically relevant DGE in patients undergoing TP.

Chen Zhiqian's Thoughts on Public Health in the 1920s

During his studies at the Peking Union Medical College (1921-1929),Chen Zhiqian formed his thoughts on public health under the influences of modern medical education and the advanced thinking of the times,which laid an ideological foundation for his later engagement in rural health care and reflected the medical progress in China at that time.In the 1920s,Chen Zhiqian's thoughts on public health mainly encompassed five aspects.First,health was a cornerstone of the country's wealth and people's well-being.Second,he belived in comprehensive "big medicine" which emphasized the combination of prevention and treatment.Third,he advocated the return of medicine to the state and the building of a medical system covering all people.Fourth,he advocated maternal training and institutional standardization,emphasizing child health protection.Fifth,he was committed to the popularization of health science and advocated health education reform.Summarizing the above five aspects is of great significance for enriching and improving the academic evaluation about Chen Zhiqian and provides a reference for today's work on public health.

Model of Palliative Care in General Hospitals:A Field Study Based on the Peking Union Medical College Hospital

Objective To describe the palliative care model in the Peking Union Medical College Hospital and provide a reference for the palliative care work in other general hospitals. Methods A field study was carried out at the Palliative Medicine Center of Peking Union Medical College Hospital.Data were collected by participatory observation,in-depth interviews,and physical collection,and the thematic analysis was performed to refine the themes and analyze the results. Results A total of 9 themes were obtained and the "Banyan Tree Model" was summarized. Conclusion The palliative care model in the Peking Union Medical College Hospital is suitable for the development of palliative care in general hospitals and has a reference value.

Dancing with disorder: chorea – an unusual and neglected manifestation of antiphospholipid syndrome

ObjectivesChorea, characterised by involuntary, irregular movements, is a rare neurological manifestation of antiphospholipid syndrome (APS). The specific clinical features remain unclear. This study aimed to summarise the available evidence on...

Recurrent pain after laparoscopic surgery for ovarian endometrioma: Clinical features and long-term follow up

PurposeWe aimed to examine the clinical characteristics of patients with ovarian endometriosis (OMA) who were diagnosed with recurrent pain after laparoscopic surgery in an 8- to 12- year postoperative follow-up. MethodsWe retrospectively analyzed data of 45 OMA patients with recurrent pain, including a minimum 8 years of post-laparoscopic follow-up reports. All laparoscopic cystectomy procedures were performed by the same surgeon at Peking Union Medical College Hospital between January 2009 and April 2013. Clinical data were retrieved to analyze patients' preoperative characteristics, relevant surgical findings, and postoperative outcomes at follow-up. ResultsA total of 45 patients with OMA were included, with a mean age of 31.8±4.92 years. The mean recurrence period was 45.78±24.89 months. Before surgery, 60% (27/45) of patients had severe dysmenorrhea. During surgery, 93.3% (42/45) of patients were in stage III/IV, 51.1% (23/45) had coexisting adenomyosis, and 66.7% (30/45) had deep infiltrating endometriosis (DIE). For the whole study group, mean follow-up time was 121.96±15.55 months. All patients underwent postoperative medical treatment. The mean recurrence period was 45.78±24.89 months. Cyst recurrence was presented in 24.4% (11/45) of patients, while 75.6% (34/45) only complained of pain recurrence. At the end of follow-up, spontaneous pregnancy was seen in 24.4% (11/45) of patients and 6.7% (3/45) received in vitro fertilization and embryo transfer (IVF-ET). ConclusionsPatients with symptomatic recurrence after surgery had more severe dysmenorrhea, larger proportion of coexisting adenomyosis and DIE, and a higher revised American Fertility Society (rAFS) stage. Recurrence of endometrial cysts was not related to pain recurrence. Long-term postoperative pharmacological therapy is recommended to reduce recurrence.

Clinical outcomes analysis of image-guided brachytherapy as definitive treatment for inoperable endometrial cancer

ObjectivesThis study evaluates the efficacy and toxicity of image-guided brachytherapy combined with or without external beam radiotherapy (IGBT ± EBRT) as definitive treatment for patients with inoperable endometrial cancer (IOEC), in addition to establishing a risk classification to predict prognosis.MethodsFifty-one IOEC patients who underwent IGBT ± EBRT at Peking Union Medical College Hospital from January 2012 to December 2021 were retrospectively analyzed, of which 42 patients (82.4%) were treated with IGBT + EBRT and 9 patients (17.6%) with IGBT alone. Establishing risk classification based on FIGO 2009 staging and biopsy pathology, stage III/IV, non-endometrioid, or Grade 3 endometrioid cancer were included in the high-risk group (n = 25), and stage I/II with Grade 1–2 endometrioid cancer was included in the low-risk group (n = 26).ResultsThe median follow-up time was 58.0 months (IQR, 37.0–69.0). Clinical complete remission (CR) was achieved in 92.2% of patients after radiotherapy (n = 47). The cumulative incidences of locoregional and distant failure were 19.6% (n = 10) and 7.8% (n = 4), respectively. A total of 20 patients died (39.2%), including 10 cancer-related deaths (19.6%) and 10 comorbidity-related deaths (19.6%). The 5-year locoregional control (LRC), time to progression (TTP), overall survival (OS), and cancer-specific survival (CSS) were 76.9%, 71.2%, 59.4%, and 77.0%, respectively. No Grade 3 or above acute or late toxicities were reported. In univariate analysis, LRC, TTP, and CSS were significantly higher in the low-risk group than in the high-risk group (P < 0.05). After adjusting for age, number of comorbidities, radiotherapy modality, and chemotherapy, the low-risk group was still significantly better than the high-risk group in terms of LRC (HR = 6.10, 95% CI: 1.18–31.45, P = 0.031), TTP (HR = 8.07, 95% CI: 1.64–39.68, P = 0.010) and CSS (HR = 6.29, 95% CI: 1.19–33.10, P = 0.030).ConclusionsIGBT ± EBRT is safe and effective as definitive treatment for IOEC patients, achieving satisfactory locoregional control, favorable survival outcomes, and low toxicity. Risk classification based on FIGO 2009 staging and biopsy pathology is an independent prognostic factor for LRC, TTP, and CSS.