1. Mastery Learning in Intestinal Ultrasound Training: A Meaningful Step Forward, With Miles Still to Go
Acta Medica Indonesiana 2026;58(1):1-2
Abstract
Intestinal ultrasound (IUS) is increasingly recognized as a vital, non-invasive tool for managing inflammatory bowel disease (IBD) due to its real-time assessment capabilities and patient comfort. However, the lack of standardized training pathways remains a significant barrier to its widespread adoption, particularly in low- and middle-income settings. This editorial evaluates the implementation of a mastery learning-based workshop in Indonesia designed to enhance IUS skills among physicians. The mastery learning framework—incorporating flipped learning, deliberate practice, and real-time feedback led to significant improvements in technical performance with large effect sizes. Despite these gains, only about two-thirds of participants achieved competency in sigmoid colon scanning, and only half met the standard for terminal ileum assessment. This suggests that while short-term intensive workshops are effective for early skill acquisition, they may be insufficient for ensuring consistent proficiency in technically demanding tasks. Mastery learning offers a structured and reproducible approach to gastroenterology procedural training. To translate these initial educational gains into durable clinical expertise, future programs should consider longitudinal curricula that include sustained practice, mentorship, and ongoing assessment.
Intestinal ultrasound
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Mastery learning
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Inflammatory bowel disease
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Medical education
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Competency-based training
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Gastroenterology
2.Measles in Indonesia: Vaccination Coverage and Identified Challenges
Acta Medica Indonesiana 2026;58(1):3-4
Abstract
Measles has re-emerged as a significant public health threat in Indonesia, signaling gaps in immunization coverage and systemic health inequities. Following the disruptions caused by the COVID-19 pandemic, the country has seen a troubling resurgence in cases. This editorial examines the current epidemiological situation, structural barriers to vaccination, and necessary strategies for elimination. In 2025, Indonesia recorded over 63,000 suspected cases, with the trend continuing into 2026. Current vaccination coverage for children aged 12–23 months stands at 73.46%, which is significantly below the 95% threshold required for herd immunity. Key barriers identified include maternal education levels, archipelagic geography, and sociocultural factors such as religious permissibility and safety concerns. Addressing the measles resurgence requires a multi-faceted approach: strengthening routine and catch-up immunization services, addressing social determinants of health, and rebuilding public trust through community engagement. Achieving high coverage is essential to prevent severe clinical complications and protect vulnerable populations.
Measles
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Measles resurgence
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Immunization coverage
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Indonesia
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Vaccine hesitancy
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Public health systems
3.Effects of Garcinia mangostana Peel Extract on Glycemic Control in Type 2 Diabetes Mellitus: A Systematic Review of Human Studies
Yosef Purwoko ; K Heri Nugroho ; Siti Setiati ; Banundari Rachmawati
Acta Medica Indonesiana 2026;58(1):52-58
Abstract
Introduction: Type 2 diabetes mellitus (T2DM) is a major global health concern characterized by insulin resistance, hyperglycemia, and chronic inflammation. Interest in natural adjunctive therapies has increased, particularly in mangosteen (Garcinia mangostana), which contains xanthone compounds in the peel with potential antidiabetic properties. Methods: This systematic review followed PRISMA 2020 guidelines. Literature searches were conducted using PubMed, Google Scholar, and ClinicalKey up to December 2022 for studies assessing mangosteen peel extract (MPE) or α-mangostin in diabetic human subjects. Eligible studies included randomized controlled and quasi-experimental trials reporting glycemic or metabolic outcomes. Risk of bias was evaluated using the Cochrane RoB tool. The primary result of this study is to evaluate the effects of mangosteen peel extract supplementation on key glycemic outcomes in patients with T2DM, specifically fasting blood glucose (FBG), HOMA-IR, and HbA1c. Results: A total of two studies (n=2) met the inclusion criteria. A randomized controlled pilot trial reported significant improvement in insulin sensitivity (HOMA-IR −53.2% vs −15.2%; p = 0.004) after 26 weeks of standardized mangosteen extract. A small quasi-experimental study reported a significant reduction in FBG following 7 days of mangosteen peel decoction. Discussion: Limited clinical evidence indicates that mangosteen peel extract may improve insulin sensitivity and lower fasting glucose in T2DM. However, the conclusions are limited by the small number of available studies, the short follow-up duration in one trial, and variability in extract preparation. Conclusion: Mangosteen peel extract demonstrates promising glycemic benefits, including improved insulin sensitivity and reduced fasting glucose. However, the available evidence remains limited by small sample sizes, short follow-up periods, and heterogeneity in extract formulations. Larger randomized controlled trials using standardized preparations are required before clinical recommendations can be made.
Garcinia mangostana
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Mangosteen peel extract
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&alpha
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-mangostin
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Type 2 diabetes mellitus
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Insulin resistance
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Oxidative stress
4.Efficacy and Safety of Pre-Endoscopy Regimens for Mucosal Visualization During Sedated Esophagogastro-duodenoscopy: A Randomized Controlled Trial
Fauzi Yusuf ; Azzaki Abubakar ; Desi Maghfirah
Acta Medica Indonesiana 2026;58(1):5-14
Abstract
Background: Optimal mucosal visibility during esophagogastroduodenoscopy (EGD) is critical for diagnostic accuracy but is often impaired by the presence of mucus and bubbles. This study aimed to compare the efficacy and safety of four premedication regimens for mucosal visualization during sedated EGD. Methods: A double-blind randomized controlled trial was conducted at the Endoscopy Unit of Dr. Zainoel Abidin General Hospital, Banda Aceh, Indonesia, from January to December 2024. Patients scheduled for elective diagnostic EGD were randomly assigned to: Group 1 (simethicone 40 mg at 30 minutes before the procedure), Group 2 (simethicone 40 mg + 100 mL 5% sodium bicarbonate at 2 hours), Group 3 (simethicone 40 mg + N-acetylcysteine 600 mg in 100 mL water at 2 hours), or Group 4 (all three agents at 2 hours). Primary outcomes were mucosal visibility (6-site, 3-point scoring system with lower scores indicating superior mucosal visibility); procedural metrics (irrigation volume and duration); and safety (the lowest recorded SpO₂%). Data were analyzed using ANOVA or Kruskal–Wallis for continuous variables, and Chi-square or Fisher’s exact test for categorical variables, with post hoc testing as applicable. Results: A total of 168 patients were randomized into four groups (n=42 each). Groups 3 and 4 showed superior mucosal visibility compared to Groups 1 and 2 (p=0.004), with no significant difference between Groups 3 and 4. Irrigation volume differed significantly (p=0.018), lowest in Group 4. Group 3 had the shortest procedure time (3.1 ± 1.2 minutes), significantly more efficient than Groups 1 and 2, but similar to Group 4. Oxygen saturation was slightly lower in Group 3 (p<0.005), though all groups remained within safe clinical limits. Conclusions: Simethicone and N-acetylcysteine given two hours before endoscopy effectively enhanced mucosal visibility and procedural efficiency without compromising safety, offering a practical alternative to more complex regimens.
Esophagogastroduodenoscopy
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Mucosa visibility
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Premedication
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Simethicone
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N-acetylcysteine
5.Mastery Learning in an Intestinal Ultrasound Workshop for Inflammatory Bowel Disease: Evaluating Its Effectiveness in Enhancing Skill Acquisition
Rabbinu Rangga Pribadi ; Raisa Wibowo ; Virly Nanda Muzellina ; Nikko Darnindro ; Ahmad Fariz Malvi Zamzam Zein ; Achmad Fauzi ; Marcellus Simadibrata
Acta Medica Indonesiana 2026;58(1):26-31
Abstract
Background: Intestinal ultrasound (IUS) is a non-invasive tool for monitoring inflammatory bowel disease (IBD), offering high diagnostic accuracy and greater patient convenience than gastrointestinal endoscopy. The present study evaluated the feasibility of a mastery learning approach in Indonesia’s inaugural IUS workshop to enhance skill acquisition among physicians. Methods: A retrospective study was conducted on 37 physicians who participated in a two-day IUS workshop employing a mastery learning approach that included flipped learning, lectures, a pre-test, hands-on sessions with real-time feedback, and a post-test. Skill acquisition was assessed using standardized checklists for scanning the sigmoid colon and terminal ileum, with pre- and post-test performance evaluated against a minimum passing standard (MPS) established by expert faculties. Data was analyzed using SPSS with appropriate statistical tests to determine learning outcomes and effect sizes. Results: 34 out of 37 participants completed the workshop and skill assessment. Significant improvements were observed in both sigmoid colon and terminal ileum ultrasound scores after training (P < 0.001), with effect sizes of r = 0.89 and r = 0.86, respectively. The MPS was achieved by 67.65% of participants for the sigmoid colon and 50% for the terminal ileum. Conclusion: A mastery learning–based workshop significantly enhanced IUS skill acquisition among internists and gastroenterologists. Based on the MPS criteria, approximately one-third of participants would require additional training for sigmoid colon scanning, while about half would benefit from further training in terminal ileum scanning.
Inflammatory bowel disease
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Ultrasonography
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Education
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Medical
;
Continuing
6.Components of Sarcopenia and Frailty in Relation to Cognitive Impairment in Older Adults: An Ambispective Cohort Study from a Tertiary Hospital
Jessica Marsigit ; Siti Setiati ; Tiara Aninditha ; Ikhwan Rinaldi ; Irsan Hasan ; Robert Sinto ; Noto Dwimartutie ; Suryo Anggoro Kusumo Wibowo ; Eric Daniel Tenda
Acta Medica Indonesiana 2026;58(1):67-76
Abstract
Background: Sarcopenia and frailty are common geriatric syndromes that may contribute to mild cognitive impairment (MCI). Evidence regarding the independent roles of individual sarcopenia components and frailty in MCI remains limited in low- and middle-income countries. This study evaluated the association between sarcopenia components, frailty, and MCI among older adults in Indonesia. Methods: An ambispective cohort study was conducted among adults aged ≥60 years attending the Geriatric Outpatient Clinic of Dr. Cipto Mangunkusumo National General Hospital, Jakarta. Sarcopenia components were assessed using SARC-Calf (low muscle mass indicator), handgrip strength, and the five-times sit-to-stand test. Frailty was evaluated using the FRAIL scale. Cognitive function was assessed using the Rapid Cognitive Screening. Multivariate log-binomial or Poisson regression with robust variance was used to estimate adjusted risk ratios (RRs) for MCI. Results: A total of 121 participants (median age 74 years; 68.6% female) were included, with an MCI prevalence of 21.5%. After adjustment for confounders, low muscle mass indicator (RR 2.206; 95% CI 1.045–4.652) and low muscle strength (RR 3.006; 95% CI 1.202–7.517) were independently associated with MCI. Low physical performance (RR 1.773; 95% CI 0.796–3.773) and frailty (RR 1.086; 95% CI 0.377–3.134) were not significantly associated with MCI. Conclusion: Low muscle mass indicators and reduced muscle strength were independently associated with MCI, supporting the integration of simple sarcopenia screening tools into routine geriatric cognitive assessment.
Sarcopenia
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Frailty
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Mild cognitive impairment
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Rapid cognitive screening
7.Comparison of Longer and Shorter Hemodialysis Duration on Nutritional Status and Quality of Life of Hemodialysis Patients
Nur Samsu ; Devi Santi Fatmawati ; Farida Wibisono ; Kartin Kartin ; Wahyu Wulandari ; Ayu Radyan Sephani ; Renny Tandya ; Angelina Gemilang Kartikasari Kosasih
Acta Medica Indonesiana 2026;58(1):15-25
Abstract
Background: Important determinants of dialysis adequacy are blood flow rate (BFR) and dialysis time. This study aimed to evaluate the impact of BFR and duration of dialysis session on nutritional status and quality of life (QoL) in hemodialysis (HD) patients. Methods: Real-world evidence studies (RWE) of 3 HD units that differ in BFR and/or dialysis time. Group I, HD 5 hours and BFR 200-250 mL/minute; group II, HD 4 hours and BFR 270-320 mL/minute, and group III, HD 4 hours and BFR 200-250 mL/minute. All HD units use the same dialysate flow and dialysis frequency. The 3-point Subjective Global Assessment (SGA) scale is used to assess nutritional status, while QOL is assessed using the SF-36. Results: There were 291 chronic HD patients with an average age of 51 (12.3) years, 50.5% were male. The proportion of SGA classes between groups did not differ significantly. Group I was associated with significantly higher PF and RP domain scores of PC and VT domain scores of MC compared to Group III. On the other hand, Group II was associated with significantly lower VT and MH domain scores of MC compared to Group I, while the other domains were not significantly different. In general, Group III had the lowest SF-36 scores compared to the other 2 groups. Conclusion: Duration of HD was not associated with nutritional status. Compared with 4-hour HD but with a faster BFR, 5-hour HD was associated with higher Mental Component QOL scores, but not Physical Component scores.
Subjective global assessment
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SF-36 questionnaire
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Blood flow rate
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Dialysis time

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