1.Addressing the challenges of missed parathyroid glands in ultrasonography for secondary hyperparathyroidism:a retrospective observational study
Shen-En CHOU ; Cheng-Hsi YEH ; Shun-Yu CHI ; Fong-Fu CHOU ; Yi-Ju WU ; Yen-Hsiang CHANG ; Yi-Chia CHAN
Annals of Surgical Treatment and Research 2024;107(3):136-143
Purpose:
Preoperative localization plays an important role in secondary hyperparathyroidism (SHPT) surgery. The advantages of neck ultrasound (US) include high availability and low cost. However, the reported sensitivity of US is 54%– 76%, and the reason for missed parathyroid glands (PGs) on US has been rarely addressed.
Methods:
Fifty-four patients who were diagnosed with renal SHPT from September 2020 to March 2022 were included in this retrospective study. Preoperative localization included surgeon-oriented US and technetium 99m-sestamibi singlephoton emission CT (SPECT)/CT.
Results:
A total of 212 PGs were pathologically confirmed, resulting in a success rate of 96.2% (52 of 54). Using echo, 193 PGs (91.0%) were accurately localized, while 19 glands (9.0%) were not identified, including those in ectopic positions (n = 12, at thymus or intrathyroid or others), of small size (<1 cm, n = 6), or overlapping with an ipsilateral PG (n = 1). US accurately detected 4 PGs in 36 (66.7%) patients, while SPECT/CT localized 4 glands in 19 patients (35.2%). Although the number of US-detectable PGs was not associated with success rate, it showed a significant negative correlation with surgical time (rs = –0.459, P = 0.002).
Conclusion
US detected 4 glands in 66% of SHPT patients with a sensitivity of 90% for localization. Ectopic position and small size were the most common reasons for the failure to detect PG on US. Complete preoperative echo localization might shorten operating time.
2.A Comparison between Structural Allografts and Polyetheretherketone Interbody Spacers Used in Anterior Cervical Discectomy and Fusion: A Systematic Review and Meta-analysis
Francis Jia Yi FONG ; Chee Yit LIM ; Jun-Hao TAN ; Hwee Weng Dennis HEY
Asian Spine Journal 2024;18(1):124-136
Among interbody implants used during anterior cervical discectomy and fusion (ACDF), structural allografts and polyetheretherketone (PEEK) are the most used spacers. Currently, no consensus has been established regarding the superiority of either implant, with US surgeons preferring structural allografts, whereas UK surgeons preferring PEEK. The purpose of this systematic review (level of evidence, 4) was to compare postoperative and patient-reported outcomes between the use of structural allografts PEEK interbody spacers during ACDF. Five electronic databases (PubMed, Embase, Scopus, Web of Science, and Cochrane) were searched for articles comparing the usage of structural allograft and PEEK interbody spacers during ACDF procedures from inception to April 10, 2023. The searches were conducted using the keywords “Spine,” “Allograft,” and “PEEK” and were performed in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-analysis guidelines. Subsequent quality and sensitivity analyses were performed on the included studies. Nine studies involving 1,074 patients were included. Compared with the PEEK group, the structural allograft group had comparable rates of postoperative pseudoarthrosis (p=0.58). However, when stratified according to the number of levels treated, the 3-level ACDF PEEK group was 3.45 times more likely to have postoperative pseudoarthrosis than the structural allograft group (p=0.01). Subsequent postoperative outcomes (rate of subsidence and change in the preoperative and postoperative segmental disc heights) were comparable between the PEEK and structural allograft groups. Patient-reported outcomes (Visual Analog Scale [VAS] of neck pain and Neck Disability Index [NDI]) were comparable. This study showed that for 3-level ACDFs, the use of structural allografts may confer higher fusion rates. However, VAS neck pain, NDI, and subsidence rates were comparable between structural allografts and PEEK cages. In addition, no significant difference in pseudoarthrosis rates was found between PEEK cages and structural allografts in patients undergoing 1- and 2-level ACDFs.
3.A Prospective 1-Year Follow-Up of Glycemic Status and C-Peptide Levels of COVID-19 Survivors with Dysglycemia in Acute COVID-19 Infection
David Tak Wai LUI ; Chi Ho LEE ; Ying WONG ; Carol Ho Yi FONG ; Kimberly Hang TSOI ; Yu Cho WOO ; Kathryn Choon Beng TAN
Diabetes & Metabolism Journal 2024;48(4):763-770
Background:
We evaluated changes in glycemic status, over 1 year, of coronavirus disease 2019 (COVID-19) survivors with dysglycemia in acute COVID-19.
Methods:
COVID-19 survivors who had dysglycemia (defined by glycosylated hemoglobin [HbA1c] 5.7% to 6.4% or random glucose ≥10.0 mmol/L) in acute COVID-19 were recruited from a major COVID-19 treatment center from September to October 2020. Matched non-COVID controls were recruited from community. The 75-g oral glucose tolerance test (OGTT) were performed at baseline (6 weeks after acute COVID-19) and 1 year after acute COVID-19, with HbA1c, insulin and C-peptide measurements. Progression in glycemic status was defined by progression from normoglycemia to prediabetes/diabetes, or prediabetes to diabetes.
Results:
Fifty-two COVID-19 survivors were recruited. Compared with non-COVID controls, they had higher C-peptide (P< 0.001) and trend towards higher homeostasis model assessment of insulin resistance (P=0.065). Forty-three COVID-19 survivors attended 1-year reassessment. HbA1c increased from 5.5%±0.3% to 5.7%±0.2% (P<0.001), with increases in glucose on OGTT at fasting (P=0.089), 30-minute (P=0.126), 1-hour (P=0.014), and 2-hour (P=0.165). At baseline, 19 subjects had normoglycemia, 23 had prediabetes, and one had diabetes. Over 1 year, 10 subjects (23.8%; of 42 non-diabetes subjects at baseline) had progression in glycemic status. C-peptide levels remained unchanged (P=0.835). Matsuda index decreased (P=0.007) and there was a trend of body mass index increase from 24.4±2.7 kg/m2 to 25.6±5.2 (P=0.083). Subjects with progression in glycemic status had more severe COVID-19 illness than non-progressors (P=0.030). Reassessment was not performed in the control group.
Conclusion
Subjects who had dysglycemia in acute COVID-19 were characterized by insulin resistance. Over 1 year, a quarter had progression in glycemic status, especially those with more severe COVID-19. Importantly, there was no significant deterioration in insulin secretory capacity.
4.Diffuse-Type Histology Is Prognostic for All Siewert Types of Gastroesophageal Adenocarcinoma
Kelly M MAHURON ; Kevin M SULLIVAN ; Matthew C HERNANDEZ ; Yi-Jen CHEN ; Joseph CHAO ; Laleh G MELSTROM ; I. Benjamin PAZ ; Jae Yul KIM ; Rifat MANNAN ; James L. LIN ; Yuman FONG ; Yanghee WOO
Journal of Gastric Cancer 2024;24(3):267-279
Purpose:
The optimal treatment for gastroesophageal junction adenocarcinoma (GEJA) remains controversial. We evaluated the treatment patterns and outcomes of patients with locally advanced GEJA according to the histological type.
Materials and Methods:
We conducted a single-institution retrospective cohort study of patients with locally advanced GEJA who underwent curative-intent surgical resection between 2010 and 2020. Perioperative therapies as well as clinicopathologic, surgical, and survival data were collected. The results of endoscopy and histopathological examinations were assessed for Siewert and Lauren classifications.
Results:
Among the 58 patients included in this study, 44 (76%) were clinical stage III, and all received neoadjuvant therapy (72% chemoradiation, 41% chemotherapy, 14% both chemoradiation and chemotherapy). Tumor locations were evenly distributed by Siewert Classification (33% Siewert-I, 40% Siewert-II, and 28% Siewert-III). Esophagogastrectomy (EG) was performed for 47 (81%) patients and total gastrectomy (TG) for 11 (19%) patients.All TG patients received D2 lymphadenectomy compared to 10 (21%) EG patients.Histopathological examination showed the presence of 64% intestinal-type and 36% diffuse-type histology. The frequencies of diffuse-type histology were similar among Siewert groups (37% Siewert-I, 36% Siewert-II, and 33% Siewert-III). Regardless of Siewert type and compared to intestinal-type, diffuse histology was associated with increased intraabdominal recurrence rates (P=0.03) and decreased overall survival (hazard ratio, 2.33; P=0.02). With a median follow-up of 31.2 months, 29 (50%) patients had a recurrence, and the median overall survival was 50.5 months.
Conclusions
Present in equal proportions among Siewert types of esophageal and gastric cancer, a diffuse-type histology was associated with high intraabdominal recurrence rates and poor survival. Histopathological evaluation should be considered in addition to anatomic location in the determination of multimodal GEJA treatment strategies.
5.2021 Asian Pacific Society of Cardiology Consensus Recommendations on the use of P2Y12 receptor antagonists in the Asia-Pacific Region: Special populations.
W E I C H I E H T A N TAN ; P C H E W CHEW ; L A M T S U I TSUI ; T A N TAN ; D U P L Y A K O V DUPLYAKOV ; H A M M O U D E H HAMMOUDEH ; Bo ZHANG ; Yi LI ; Kai XU ; J O N G ONG ; Doni FIRMAN ; G A M R A GAMRA ; A L M A H M E E D ALMAHMEED ; D A L A L DALAL ; T A N TAN ; S T E G STEG ; N N G U Y E N NGUYEN ; A K O AKO ; A L S U W A I D I SUWAIDI ; C H A N CHAN ; S O B H Y SOBHY ; S H E H A B SHEHAB ; B U D D H A R I BUDDHARI ; Zu Lv WANG ; Y E A N Y I P F O N G FONG ; K A R A D A G KARADAG ; K I M KIM ; B A B E R BABER ; T A N G C H I N CHIN ; Ya Ling HAN
Chinese Journal of Cardiology 2023;51(1):19-31
6.SBC (Sanhuang Xiexin Tang combined with Baihu Tang plus Cangzhu) alleviates NAFLD by enhancing mitochondrial biogenesis and ameliorating inflammation in obese patients and mice.
Zhitao REN ; Gemin XIAO ; Yixin CHEN ; Linli WANG ; Xiaoxin XIANG ; Yi YANG ; Siying WEN ; Zhiyong XIE ; Wenhui LUO ; Guowei LI ; Wenhua ZHENG ; Xiaoxian QIAN ; Rihan HAI ; Liansheng YANG ; Yanhua ZHU ; Mengyin CAI ; Yinong YE ; Guojun SHI ; Yanming CHEN
Chinese Journal of Natural Medicines (English Ed.) 2023;21(11):830-841
In the context of non-alcoholic fatty liver disease (NAFLD), characterized by dysregulated lipid metabolism in hepatocytes, the quest for safe and effective therapeutics targeting lipid metabolism has gained paramount importance. Sanhuang Xiexin Tang (SXT) and Baihu Tang (BHT) have emerged as prominent candidates for treating metabolic disorders. SXT combined with BHT plus Cangzhu (SBC) has been used clinically for Weihuochisheng obese patients. This retrospective analysis focused on assessing the anti-obesity effects of SBC in Weihuochisheng obese patients. We observed significant reductions in body weight and hepatic lipid content among obese patients following SBC treatment. To gain further insights, we investigated the effects and underlying mechanisms of SBC in HFD-fed mice. The results demonstrated that SBC treatment mitigated body weight gain and hepatic lipid accumulation in HFD-fed mice. Pharmacological network analysis suggested that SBC may affect lipid metabolism, mitochondria, inflammation, and apoptosis-a hypothesis supported by the hepatic transcriptomic analysis in HFD-fed mice treated with SBC. Notably, SBC treatment was associated with enhanced hepatic mitochondrial biogenesis and the inhibition of the c-Jun N-terminal kinase (JNK)/nuclear factor-kappa B (NF-κB) and extracellular signal-regulated kinase (ERK)/NF-κB pathways. In conclusion, SBC treatment alleviates NAFLD in both obese patients and mouse models by improving lipid metabolism, potentially through enhancing mitochondrial biogenesis. These effects, in turn, ameliorate inflammation in hepatocytes.
Humans
;
Mice
;
Animals
;
Non-alcoholic Fatty Liver Disease/metabolism*
;
NF-kappa B/metabolism*
;
Organelle Biogenesis
;
Retrospective Studies
;
Mice, Inbred C57BL
;
Obesity/metabolism*
;
Liver
;
Inflammation/metabolism*
;
Body Weight
;
Lipid Metabolism
;
Lipids
;
Diet, High-Fat/adverse effects*
7.Safety attitudes, burnout and well-being among healthcare workers during the COVID-19 pandemic: an Indo-Pacific regional cross-sectional study.
Abhiram KANNEGANTI ; Benjamin Yong Qiang TAN ; Nik Hisamuddin NIK AB RAHMAN ; Aloysius Sheng-Ting LEOW ; Max DENNING ; Ee Teng GOH ; Lucas Jun HAO LIM ; Ching-Hui SIA ; Ying Xian CHUA ; James KINROSS ; Melanie TAN ; Li Feng TAN ; Yi Min WAN ; Arvind SHARMA ; Rivan DANUAJI ; R N KOMAL KUMAR ; Chew Keng SHENG ; Cheah Phee KHENG ; Sarah Shaikh ABDUL KARIM ; Mohd Najib ABDUL GHANI ; Suhaimi MAHMUD ; Yiong Huak CHAN ; Vijay Kumar SHARMA ; Kang SIM ; Shirley Beng SUAT OOI
Singapore medical journal 2023;64(11):667-676
INTRODUCTION:
The coronavirus disease 2019 (COVID-19) pandemic has had an unprecedented impact in Asia and has placed significant burden on already stretched healthcare systems. We examined the impact of COVID-19 on the safety attitudes among healthcare workers (HCWs), as well as their associated demographic and occupational factors, and measures of burnout, depression and anxiety.
METHODS:
A cross-sectional survey study utilising snowball sampling was performed involving doctors, nurses and allied health professions from 23 hospitals in Singapore, Malaysia, India and Indonesia between 29 May 2020 and 13 July 2020. This survey collated demographic data and workplace conditions and included three validated questionnaires: the Safety Attitudes Questionnaire (SAQ), Oldenburg Burnout Inventory and Hospital Anxiety and Depression Scale. We performed multivariate mixed-model regression to assess independent associations with the SAQ total percentage agree rate (PAR).
RESULTS:
We obtained 3,163 responses. The SAQ total PARs were found to be 35.7%, 15.0%, 51.0% and 3.3% among the respondents from Singapore, Malaysia, India and Indonesia, respectively. Burnout scores were highest among respondents from Indonesia and lowest among respondents from India (70.9%-85.4% vs. 56.3%-63.6%, respectively). Multivariate analyses revealed that meeting burnout and depression thresholds and shifts lasting ≥12 h were significantly associated with lower SAQ total PAR.
CONCLUSION
Addressing the factors contributing to high burnout and depression and placing strict limits on work hours per shift may contribute significantly towards improving safety culture among HCWs and should remain priorities during the pandemic.
Humans
;
Cross-Sectional Studies
;
Pandemics
;
COVID-19/epidemiology*
;
Burnout, Psychological
;
Health Personnel
9.Developing the Disaster Medical Responder’s Course in Singapore
Jen Heng Pek ; Li Juan Joy Quah ; Kuan Peng David Teng ; Yi Wen Matthew Yeo ; Chan Yu Jimmy Lee
Western Pacific Surveillance and Response 2023;14(6):25-30
Problem: Emergency medical teams (EMTs) deployed to mass casualty incidents (MCIs) are required to work outside their usual settings and according to different principles, which may affect their performance and the survival of casualties. Prior to 2013, training offered to domestic EMTs was limited to ad hoc and infrequent simulation exercises.
Context: Domestic EMTs are activated from public tertiary hospitals to provide pre-hospital medical support to the Singapore Civil Defence Force and establish a first-aid post (FAP) for triaging, stabilizing and treating casualties. These casualties are then evacuated to public hospitals for further management.
Action: Recognizing the need for a more systematic approach to the training of domestic EMTs, the Disaster Medical Responder’s Course (the Course) was developed as a multi-institutional collaboration to equip EMT members attending a MCI with the necessary skills to perform effectively at the FAP.
Outcome: The Course was first run in 2013 and is usually offered six to eight times a year. Since June 2019, a total of 414 health-care staff and allied health professionals have participated. There have been numerous revisions of the course content and delivery to reflect the latest concepts in operations and global best practice, as well as developments in educational methodologies.
Discussion: Preparedness is crucial to optimize the survival and outcomes of casualties. The Course provides standardized training of domestic EMTs and plays a pivotal role in ensuring operational readiness for MCIs in Singapore.
10.Improved Urothelial Cell Proliferation, Cytoskeleton and Barrier Function Protein Expression in the Patients With Interstitial Cystitis/Bladder Pain Syndrome After Intravesical Platelet-Rich Plasma Injection
Jia-Fong JHANG ; Yuan-Hong JIANG ; Yung-Hsiang HSU ; Han-Chen HO ; Lori A BIRDER ; Teng-Yi LIN ; Hann-Chorng KUO
International Neurourology Journal 2022;26(Suppl 1):S57-67
Purpose:
To investigate urothelial cell proliferation, cytoskeleton, inflammation, and barrier function protein expressions in patients with interstitial cystitis/bladder pain syndrome (IC/BPS) after intravesical platelet-rich plasma (PRP) injections
Methods:
A total of 19 patients with IC/BPS underwent 4 monthly intravesical PRP injections. Bladder biopsies were taken at the first and fourth PRP treatment. The bladder specimens were analyzed using the Western blot and immunochemical staining for progenitor cell markers for sonic hedgehog (Shh), CD34, and cytoskeleton proteins cytokeratin 5 (CK5), CK14, CK20; barrier function markers for zonula occludens-1 (ZO-1), E-cadherin, and intercellular adhesive molecule-1, tryptase and transforming growth factor-β (TGF-β). Global response assessment (GRA) was used to evaluate treatment outcomes.
Results:
The mean age of patients was 55.6 years. After PRP injections, the functional bladder capacity and maximum flow rate increased, and the visual analogue scale (VAS) of pain, interstitial cystitis (IC) symptom index, IC problem index, O’Leary-Sant symptom score, and GRA improved in all patients. Urothelium Shh, CK5, ZO-1, E-cadherin, and TGF-β expressions increased significantly after repeated PRP injections. By subgrouping, according to PRP treatment outcomes, significant increases in Shh, E-cadherin, and ZO-1 expressions were noted only in patients with GRA ≥1 or improved VAS, but not in patients with GRA=0 and no improvement in VAS.
Conclusions
The level of urothelial barrier function protein and cell proliferation protein expression in the patients with IC/BPS was increased after repeat intravesical PRP injections. Intravesical repeat PRP injections may have potential to improve urothelial health and result in symptoms improvement in the patients with IC/BPS.


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