1.Cardiovascular-obstetric state-of-the-art review: pulmonary hypertension in pregnancy.
Joy Yi Shan ONG ; Jeannie Jing Yi YAP ; Mahesh CHOOLANI ; Kian-Keong POH ; Pradip DASHRAATH ; Ting-Ting LOW
Singapore medical journal 2025;66(3):130-140
Pulmonary hypertension in pregnancy has been associated with negative maternal and fetal outcomes over the past decades. With the emergence of novel treatment modalities, morbidity and mortality of women who have pulmonary hypertension in pregnancy have improved. In this review, we aim to explore the contemporary updates in the management of pre-capillary and post-capillary pulmonary hypertension in pregnancy.
Humans
;
Pregnancy
;
Female
;
Hypertension, Pulmonary/physiopathology*
;
Pregnancy Complications, Cardiovascular/diagnosis*
;
Pregnancy Outcome
;
Antihypertensive Agents/therapeutic use*
2.Prescription pattern of traditional Chinese medicine for treatment of hypertensive left ventricular hypertrophy based on multivariate data mining.
Xuan-Yang WANG ; Yuan GAO ; Bin LI ; Rui YU ; Shi-Yang XIE ; Lu-Ye ZHOU ; Yu-Die SUN ; Ming-Jun ZHU
China Journal of Chinese Materia Medica 2025;50(6):1688-1698
This study explored the prescription pattern of traditional Chinese medicine(TCM) in the treatment of hypertensive left ventricular hypertrophy(LVH), so as to provide a relevant theoretical basis for the clinical diagnosis and treatment of hypertensive LVH. The study systematically searched the databases of CNKI, Wanfang, VIP, and SinoMed to screen out the qualified literature on TCM treatment of hypertensive LVH and used Microsoft Excel 2021 to establish the relevant prescription database. It also counted the frequency, property, flavor, and meridian affiliation of TCM in the prescriptions and classified their efficacy. The study used Lantern 5.0 and Rstudio software to analyze the hidden structural models and association rules of the high-frequency TCM with a frequency of >3.50% and adopted Origin 2024 software to visualize the data, so as to explore the prescription pattern of TCM in treating hypertensive LVH. The results showed that a total of 128 TCM prescriptions were included, involving 163 TCM with a total frequency of 1 242. The high-frequency TCM included Salviae Miltiorrhizae Radix et Rhizoma, Uncariae Ramulus Cum Uncis, Gastrodiae Rhizoma, Poria, and Chuanxiong Rhizoma, with the main efficacy from blood-activating and stasis-resolving herbs, tonic herbs, and liver-calming and wind-extinguishing herbs. The latent structure analysis(LSA) identified 10 latent variables, 20 latent classes, 7 comprehensive clustering models, and 23 core prescriptions. It was speculated that the common syndromes of hypertensive LVH included blood stasis obstructing the collaterals, ascending hyperactivity of liver Yang, Yin deficiency with Yang hyperactivity, and intermingled phlegm and blood stasis. The association rule analysis yielded 33 strong association rules, with the highest comprehensive association rule being Gastrodiae Rhizoma→Uncariae Ramulus Cum Uncis. Hypertensive LVH is characterized by asthenia in origin and asthenia in superficiality, with Yin deficiency and Qi deficiency as the origin and blood stasis and phlegm as the superficiality. Clinical treatment focuses on activating blood circulation, resolving stasis, tonifying Qi, and nourishing Yin, combined with syndrome-specific therapies such as calming wind and stopping convulsions, clearing heat, eliminating dampness and resolving phlegm, and promoting diuresis and reducing swelling.
Drugs, Chinese Herbal/therapeutic use*
;
Data Mining
;
Humans
;
Hypertension/complications*
;
Hypertrophy, Left Ventricular/physiopathology*
;
Medicine, Chinese Traditional
;
Drug Prescriptions
3.Contraction mechanism of smooth muscle cells and its relationship with penile erection.
National Journal of Andrology 2018;24(2):172-175
Penile erectile dysfunction (ED) is ascribed to the contraction-relaxation imbalance of smooth muscle cells (SMC), the weakening of their diastolic function and the strengthening of their systolic function. The contraction-related signaling pathways, cell membrane ion channels and SMC phenotypes all participate in the regulation of their contraction and its malfunction may cause a variety of SMC-related diseases. The signaling pathways RhoA/Rock and Raf/MEK/ERK1/2 interact with each other, suppressing the expression of the RhoA protein or reducing the level of Rock2 phosphorylation, which may contribute to the treatment of ED. The poor performance of VDCC or TRPC is reckoned to be an important cause of hypertension- or diabetes-related ED. The expressions of CaV1.2, TRPC1 and TRPC4 can be upregulated by many pathological factors, which may enhance the contraction of SMCs. The pathogenesis of ED may be associated with the differentiation of the phenotypes corpus cavernosal SMCs. This review focuses on the recent progress in the studies of the relationship between SMC contraction and ED.
Animals
;
Diabetes Complications
;
etiology
;
physiopathology
;
Erectile Dysfunction
;
etiology
;
physiopathology
;
Humans
;
Hypertension
;
complications
;
Ion Channels
;
metabolism
;
Male
;
Mitogen-Activated Protein Kinase 3
;
Muscle Contraction
;
physiology
;
Myocytes, Smooth Muscle
;
physiology
;
Penile Erection
;
physiology
;
Phosphorylation
;
Signal Transduction
;
physiology
4.Relationships of Inflammatory Factors and Risk Factors with Different Target Organ Damage in Essential Hypertension Patients.
Chun-Lin LAI ; Jin-Ping XING ; Xiao-Hong LIU ; Jie QI ; Jian-Qiang ZHAO ; You-Rui JI ; Wu-Xiao YANG ; Pu-Juan YAN ; Chun-Yan LUO ; Lu-Fang RUAN
Chinese Medical Journal 2017;130(11):1296-1302
BACKGROUNDAtherosclerosis (AS) is an inflammatory disease. Inflammation was considered to play a role in the whole process of AS. This study aimed to analyze the relationships of inflammatory factors and risk factors with different target organ damages (TOD) in essential hypertension (EH) patients and to explore its clinical significance.
METHODSA total of 294 EH patients were selected and divided into four groups according to their conditions of TOD. Forty-eight healthy subjects were selected as control. The clinical biochemical parameters, serum amyloid A, serum tryptase, and lipoprotein-associated phospholipase A2 (Lp-PLA2) in each group were detected, and the related risk factors were also statistically analyzed.
RESULTSFibrinogen (Fbg) was the most significant independent risk factor in acute coronary syndrome (ACS) group (odds ratio [OR]: 22.242, 95% confidence interval [CI]: 6.458-76.609, P< 0.001) with the largest absolute value of the standardized partial regression coefficient B' (b': 1.079). Lp-PLA2 was the most significant independent risk factor in stroke group (OR: 13.699, 95% CI: 5.236-35.837, P< 0.001) with b' = 0.708. Uric acid (UA) was the most significant independent risk factor in renal damage group (OR: 15.307, 95% CI: 4.022-58.250, P< 0.001) with b' = 1.026.
CONCLUSIONSFbg, Lp-PLA2, and UA are the strongest independent risk factors toward the occurrence of ACS, ischemic stroke, and renal damage in EH patients, thus exhibiting the greatest impacts on the occurrence of ACS, ischemic stroke, and renal damage in EH patients, respectively.
1-Alkyl-2-acetylglycerophosphocholine Esterase ; Aged ; Antihypertensive Agents ; therapeutic use ; Enzyme-Linked Immunosorbent Assay ; Essential Hypertension ; blood ; complications ; drug therapy ; physiopathology ; Female ; Humans ; Kidney Diseases ; blood ; etiology ; physiopathology ; Logistic Models ; Male ; Middle Aged ; Renal Insufficiency, Chronic ; blood ; etiology ; physiopathology ; Risk Factors ; Serum Amyloid A Protein ; metabolism ; Stroke ; blood ; etiology ; physiopathology ; Tryptases ; blood
5.Health-Related Quality of Life in Children with Biliary Atresia Living with Native Livers.
Annals of the Academy of Medicine, Singapore 2016;45(2):61-68
INTRODUCTIONThis study aimed to quantify and investigate factors affecting the health-related quality of life (HRQoL) in children with biliary atresia (BA) living with their native livers.
MATERIALS AND METHODSA cross-sectional study on the HRQoL using the PedsQL4.0 generic core scales in children with BA aged between 2 to 18 years followed up at the University Malaya Medical Centre (UMMC) in Malaysia was conducted. Two groups, consisting of healthy children and children with chronic liver disease (CLD) caused by other aetiologies, were recruited as controls.
RESULTSChildren with BA living with their native livers (n = 36; median (range) age: 7.4 (2 to 18) years; overall HRQoL score: 85.6) have a comparable HRQoL score with healthy children (n = 81; median age: 7.0 years; overall HQRoL score: 87.4; P = 0.504) as well as children with CLD (n = 44; median age: 4.3 years; overall score: 87.1; P = 0.563). The HRQoL of children with BA was not adversely affected by having 1 or more hospitalisations in the preceding 12 months, the presence of portal hypertension, older age at corrective surgery (>60 days), a lower level of serum albumin (≤34 g/L) or a higher blood international normalised ratio (INR) (≥1.2). Children who had liver transplantation for BA did not have a significantly better HRQoL as compared to those who had survived with their native livers (85.4 vs 85.7, P = 0.960).
CONCLUSIONHRQoL in children with BA living with their native livers is comparable to healthy children.
Adolescent ; Age Factors ; Biliary Atresia ; complications ; physiopathology ; psychology ; surgery ; Case-Control Studies ; Child ; Child, Preschool ; Chronic Disease ; Cross-Sectional Studies ; Female ; Health Status ; Humans ; Hypertension, Portal ; etiology ; physiopathology ; psychology ; Liver Diseases ; physiopathology ; psychology ; Liver Transplantation ; Malaysia ; Male ; Quality of Life ; Serum Albumin
6.Application of a standardised protocol for hepatic venous pressure gradient measurement improves quality of readings and facilitates reduction of variceal bleeding in cirrhotics.
Tze Tong TEY ; Apoorva GOGNA ; Farah Gillan IRANI ; Chow Wei TOO ; Hoau Gong Richard LO ; Bien Soo TAN ; Kiang Hiong TAY ; Hock Foong LUI ; Pik Eu Jason CHANG
Singapore medical journal 2016;57(3):132-137
INTRODUCTIONHepatic venous pressure gradient (HVPG) measurement is recommended for prognostic and therapeutic indications in centres with adequate resources and expertise. Our study aimed to evaluate the quality of HVPG measurements at our centre before and after introduction of a standardised protocol, and the clinical relevance of the HVPG to variceal bleeding in cirrhotics.
METHODSHVPG measurements performed at Singapore General Hospital from 2005-2013 were retrospectively reviewed. Criteria for quality HVPG readings were triplicate readings, absence of negative pressure values and variability of ≤ 2 mmHg. The rate of variceal bleeding was compared in cirrhotics who achieved a HVPG response to pharmacotherapy (reduction of the HVPG to < 12 mmHg or by ≥ 20% of baseline) and those who did not.
RESULTS126 HVPG measurements were performed in 105 patients (mean age 54.7 ± 11.4 years; 55.2% men). 80% had liver cirrhosis and 20% had non-cirrhotic portal hypertension (NCPH). The mean overall HVPG was 13.5 ± 7.2 mmHg, with a significant difference between the cirrhosis and NCPH groups (p < 0.001). The proportion of quality readings significantly improved after the protocol was introduced. HVPG response was achieved in 28 (33.3%, n = 84) cirrhotics. Nine had variceal bleeding over a median follow-up of 29 months. The rate of variceal bleeding was significantly lower in HVPG responders compared to nonresponders (p = 0.025).
CONCLUSIONThe quality of HVPG measurements in our centre improved after the introduction of a standardised protocol. A HVPG response can prognosticate the risk of variceal bleeding in cirrhotics.
Esophageal and Gastric Varices ; complications ; physiopathology ; Female ; Follow-Up Studies ; Gastrointestinal Hemorrhage ; etiology ; physiopathology ; prevention & control ; Humans ; Hypertension, Portal ; complications ; physiopathology ; Liver Cirrhosis ; complications ; physiopathology ; Male ; Middle Aged ; Portal Pressure ; physiology ; Prognosis ; Retrospective Studies
7.Characteristics of Patients with Chronic Obstructive Pulmonary Disease at the First Visit to a Pulmonary Medical Center in Korea: The KOrea COpd Subgroup Study Team Cohort.
Jung Yeon LEE ; Gyu Rak CHON ; Chin Kook RHEE ; Deog Kyeom KIM ; Hyoung Kyu YOON ; Jin Hwa LEE ; Kwang Ha YOO ; Sang Haak LEE ; Sang Yeub LEE ; Tae Eun KIM ; Tae Hyung KIM ; Yong Bum PARK ; Yong Il HWANG ; Young Sam KIM ; Ki Suck JUNG
Journal of Korean Medical Science 2016;31(4):553-560
The Korea Chronic Obstructive Pulmonary Disorders Subgroup Study Team (Korea COPD Subgroup Study team, KOCOSS) is a multicenter observational study that includes 956 patients (mean age 69.9 ± 7.8 years) who were enrolled from 45 tertiary and university-affiliated hospitals from December 2011 to October 2014. The initial evaluation for all patients included pulmonary function tests (PFT), 6-minute walk distance (6MWD), COPD Assessment Test (CAT), modified Medical Research Council (mMRC) dyspnea scale, and the COPD-specific version of St. George's Respiratory Questionnaire (SGRQ-C). Here, we report the comparison of baseline characteristics between patients with early- (Global Initiative for Chronic Obstructive Lung Disease [GOLD] stage I and II/groups A and B) and late-stage COPD (GOLD stage III and IV/groups C and D). Among all patients, the mean post-bronchodilator FEV1 was 55.8% ± 16.7% of the predicted value, and most of the patients were in GOLD stage II (520, 56.9%) and group B (399, 42.0%). The number of exacerbations during one year prior to the first visit was significantly lower in patients with early COPD (0.4 vs. 0.9/0.1 vs. 1.2), as were the CAT score (13.9 vs. 18.3/13.5 vs. 18.1), mMRC (1.4 vs. 2.0/1.3 vs.1.9), and SGRQ-C total score (30.4 vs. 42.9/29.1 vs. 42.6) compared to late-stage COPD (all P < 0.001). Common comorbidities among all patients were hypertension (323, 37.7%), diabetes mellitus (139, 14.8%), and depression (207, 23.6%). The data from patients with early COPD will provide important information towards early detection, proper initial management, and design of future studies.
Aged
;
Cohort Studies
;
Comorbidity
;
Depression/epidemiology
;
Diabetes Mellitus/epidemiology
;
Dyspnea/complications
;
Female
;
Forced Expiratory Volume
;
Hospitals, University
;
Humans
;
Hypertension/epidemiology
;
Lung/physiopathology
;
Male
;
Middle Aged
;
Pulmonary Disease, Chronic Obstructive/complications/*diagnosis/physiopathology
;
Quality of Life
;
Republic of Korea
;
Respiratory Function Tests
;
Severity of Illness Index
;
Societies, Medical
;
Surveys and Questionnaires
;
Tertiary Care Centers
;
Walk Test
8.Clinical Manifestations of Fibrosing Mediastinitis in Chinese Patients.
Yan HU ; Jian-Xing QIU ; Ji-Ping LIAO ; Hong ZHANG ; Zhe JIN ; Guang-Fa WANG
Chinese Medical Journal 2016;129(22):2697-2702
BACKGROUNDFibrosing mediastinitis (FM) is a rare disease. FM is thought to be related to prior granulomatous mediastinal infection, such as histoplasmosis or tuberculosis. The majority of cases have been reported in endemic regions for histoplasmosis. The characteristics of cases of FM in China, where the prevalence of tuberculosis is high, have not been reported. We analyzed the clinical, imaging, and bronchoscopic features of Chinese patients with FM to promote awareness of this disease.
METHODSBetween January 2005 and June 2015, twenty patients were diagnosed with FM in our hospital. Medical records and follow-up data were collected. Imaging and biopsy findings were reviewed by radiologists and pathologists.
RESULTSA total of 20 patients were analyzed (8 males and 12 females). The age ranged from 43 to 88 years with a mean age of 69.5 years. Previous or latent tuberculosis was found in 12 cases. Clinical symptoms included dyspnea (18/20), cough (17/20), expectoration (7/20), and recurrent pneumonia (3/20). Chest computed tomography scans showed a diffuse, homogeneous, soft tissue process throughout the mediastinum and hila with compression of bronchial and pulmonary vessels. Calcification was common (15/20). Pulmonary hypertension was present in 9 of 20 cases. Diffuse black pigmentation in the bronchial mucosa was frequently seen on bronchoscopy (12/13). The patients' response to antituberculosis treatment was inconsistent.
CONCLUSIONSFM in Chinese patients is most likely associated with tuberculosis. Some characteristics of FM are different from cases caused by histoplasmosis.
Adult ; Aged ; Aged, 80 and over ; Asian Continental Ancestry Group ; China ; Female ; Histoplasmosis ; complications ; diagnosis ; Humans ; Hypertension, Pulmonary ; diagnosis ; physiopathology ; Male ; Mediastinitis ; diagnosis ; etiology ; physiopathology ; Middle Aged ; Sclerosis ; diagnosis ; etiology ; physiopathology ; Tuberculosis ; diagnosis ; physiopathology
9.What we need to know when performing and interpreting US elastography.
So Hyun PARK ; So Yeon KIM ; Chong Hyun SUH ; Seung Soo LEE ; Kyoung Won KIM ; So Jung LEE ; Moon Gyu LEE
Clinical and Molecular Hepatology 2016;22(3):406-414
According to the increasing need for accurate staging of hepatic fibrosis, the ultrasound (US) elastography techniques have evolved significantly over the past two decades. Currently, US elastography is increasingly used in clinical practice. Previously published studies have demonstrated the excellent diagnostic performance of US elastography for the detection and staging of liver fibrosis. Although US elastography may seem easy to perform and interpret, there are many technical and clinical factors which can affect the results of US elastography. Therefore, clinicians who are involved with US elastography should be aware of these factors. The purpose of this article is to present a brief overview of US techniques with the relevant technology, the clinical indications, diagnostic performance, and technical and biological factors which should be considered in order to avoid misinterpretation of US elastography results.
Disease Progression
;
Elasticity Imaging Techniques/instrumentation/*methods
;
Fatty Liver/complications/diagnostic imaging
;
Humans
;
Hypertension, Portal/complications
;
Liver/*diagnostic imaging/physiopathology
;
Liver Cirrhosis/diagnostic imaging/pathology

Result Analysis
Print
Save
E-mail