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Non-Invasive Neuromodulation for Drug-Resistant Epilepsy in Children: A Randomized Controlled Trial of Transcranial Magnetic Stimulation (TMS) versus Vagus Nerve Stimulation (VNS) in Jakarta, Indonesia Febria Suryani; Rinna Azrida; Linda Purnama; Vania Delma; Desiree Montesinos
Scientific Journal of Pediatrics Vol. 3 No. 1 (2025): Scientific Journal of Pediatrics
Publisher : Phlox Institute: Indonesian Medical Research Organization

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59345/sjped.v2i2.173

Abstract

Introduction: Drug-resistant epilepsy (DRE) significantly impacts the quality of life in children. While vagus nerve stimulation (VNS) is an established treatment, repetitive transcranial magnetic stimulation (rTMS) offers a non-invasive alternative. This study aimed to compare the efficacy and safety of rTMS versus VNS in a pediatric DRE population in Jakarta, Indonesia. Methods: This was a single-center, randomized, controlled, open-label trial conducted at Private Hospital, Jakarta. Children aged 5-18 years with DRE, defined as failure to achieve seizure freedom despite adequate trials of two appropriate antiepileptic drugs (AEDs), were randomly assigned (1:1) to receive either rTMS or VNS. The primary outcome was the percentage reduction in seizure frequency at 6 months post-intervention compared to baseline. Secondary outcomes included responder rate (≥50% seizure reduction), quality of life (QoL) using the PedsQL, cognitive function (using standardized neuropsychological tests), and adverse events. Results: A total of 60 children were randomized (30 rTMS, 30 VNS). At 6 months, the mean percentage reduction in seizure frequency was significantly greater in the rTMS group (48.5%, SD 15.2%) compared to the VNS group (35.2%, SD 12.8%) (p = 0.001). Responder rates were 63.3% for rTMS and 46.7% for VNS (p = 0.17). PedsQL scores showed a significant improvement in the rTMS group compared to baseline in the psychosocial health summary score (p = 0.005), but not the VNS group (p=0.1). No significant differences were observed in cognitive function between the groups. Adverse events were generally mild and transient in both groups, though VNS was associated with more voice alteration and coughing. Conclusion: rTMS demonstrated superior efficacy in reducing seizure frequency compared to VNS in this Indonesian pediatric DRE population. While VNS is an established method, rTMS may present a non-invasive and potentially more effective therapeutic alternative. Further, larger, multicenter studies are warranted to confirm these findings and explore long-term outcomes.
Reading the Epigenetic Clock: A Comparative Analysis of DNA Methylation Markers for Age Estimation in Semen, Saliva, and Touch DNA Febria Suryani; Bryan Helsey; Leonardo Simanjuntak; Karina Chandra; Mustafa Mahmud; Lisha Sandrina; Ahmad Erza
Sriwijaya Journal of Forensic and Medicolegal Vol. 3 No. 1 (2025): Sriwijaya Journal of Forensic and Medicolegal
Publisher : Phlox Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59345/sjfm.v3i1.233

Abstract

Background. Predicting an individual's age from biological evidence is a significant advance in forensic intelligence. DNA methylation, a stable epigenetic mark, provides the molecular basis for epigenetic clocks, but their operational reliability requires validation across diverse sample types and populations, particularly for low-template touch DNA. Objective. To develop and validate body-fluid-specific age prediction models from a curated five-CpG panel in semen, saliva and touch DNA, and to compare their accuracy in an Indonesian population. Methods. Following approval from the Ethical Committee of CMHC Research Center, Indonesia (No. 2023/128), 150 healthy Indonesian male volunteers aged 18–65 provided semen, saliva and high-yield standardized touch DNA. Methylation at five CpG sites (ELOVL2, FHL2, TRIM59, KCNQ1DN, C1orf132) was quantified by controlled pyrosequencing after bisulfite conversion with efficiency controls. Body-fluid-specific models were built by multiple linear regression and validated by 10-fold cross-validation. Results. The semen and saliva models were highly accurate, with mean absolute deviations of 3.19 years (R²=0.94) and 3.55 years (R²=0.92). The touch DNA model was less precise but still informative (MAD 5.49 years, R²=0.85). All models satisfied the assumptions of linear regression, with variance inflation factors below 2.5, and 95% prediction intervals were narrowest for semen. Conclusion. The panel is validated for age prediction in a Southeast Asian population. The semen and saliva models are accurate enough for consideration in casework, while the touch DNA model, interpreted cautiously, can generate investigative leads from trace evidence. The findings underline the importance of tissue-specific modeling and provide a methodological blueprint for responsible forensic age estimation.
Failure to Palpate and Failure to Image: Quantifying Standard-of-Care Departure in Fatal Delayed Intracranial Foreign Body Diagnosis, Indonesia Aisyah Andina Rasyid; Priscilla Kapoor; Febria Suryani
Sriwijaya Journal of Forensic and Medicolegal Vol. 3 No. 2 (2025): Sriwijaya Journal of Forensic and Medicolegal
Publisher : Phlox Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59345/sjfm.v3i2.247

Abstract

Background. Retained intracranial foreign bodies in patients alert at a Glasgow Coma Scale (GCS) of 15 are a rare, lethal and medicolegally exposed failure in Indonesian assault casework, yet the share attributable to specific documentable procedural omissions is unquantified. Objective. To quantify the association of failure to palpate the wound bed and non-adherence to computed tomography (CT) guidelines with delayed diagnosis, and to derive medicolegal attribution metrics. Methods. This retrospective multi-centre cohort (STROBE) examined 45 confirmed retained intracranial foreign bodies among 1,240 mild traumatic brain injury presentations (prevalence 3.63%, 95% CI 2.72–4.82) at three North Sumatran trauma centres, 2019–2023. Diagnosis beyond 24 hours was the pre-specified outcome. Analysis of aggregate data used exact conditional and Firth-penalised odds ratios, Holm multiplicity control, and partial identification of the multivariable model across 4,000 admissible joint arrangements. Results. Diagnosis was delayed in 14 of 45 cases (31.1%, 95% CI 19.5–45.7). Failure to palpate the wound bed carried an exact conditional odds ratio of 29.86 (4.79–281.0; p < 0.001) and CT non-adherence 20.88 (3.57–174.7; p < 0.001). Palpation failure achieved sensitivity 78.6%, specificity 90.3% and area under the curve 0.844; the attributable fraction was 76.3% (50.8–96.1). Adjusted odds ratios were bounded, not estimated, because aggregate data cannot identify a multivariable model. Conclusion. Two zero-cost omissions dominate a fatal diagnostic failure; recording wound-bed palpation and the imaging decision is clinically protective and, under KUHAP Articles 133 and 179 and Law No. 17 of 2023, is what a visum et repertum requires.
Forensic DNA Phenotyping of Externally Visible Characteristics and Biogeographic Ancestry in Indonesian Populations: A Cross-Sectional Validation Study Rinna Azrida; Febria Suryani; Bjorka Alma; Sony Sanjaya; Khairiel Anwar
Sriwijaya Journal of Forensic and Medicolegal Vol. 2 No. 2 (2024): Sriwijaya Journal of Forensic and Medicolegal
Publisher : Phlox Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59345/sjfm.v2i2.366

Abstract

Background. Forensic DNA phenotyping (FDP) infers externally visible characteristics (EVCs) and biogeographic ancestry (BGA) from DNA when no reference profile is available. How well it performs in Indonesian populations has been little characterised. Objective. To evaluate how accurately a single nucleotide polymorphism (SNP) panel predicts skin, iris and hair colour and broad regional ancestry in Indonesian adults. Methods. In this cross-sectional study, 1,000 unrelated adults from eight named ethnic groups and a composite group were genotyped at 20 pigmentation SNPs and 26 ancestry-informative markers by multiplex single-base extension. Colour categories were predicted with a multinomial logistic model calibrated to HIrisPlex-S, and ancestry zones (Western, Central/other, Eastern) with a random forest. Accuracy was compared with the no-information rate, the accuracy of always predicting the commonest class. Results. Skin colour was predicted correctly in 89.2% of participants (no-information rate 45.0%), iris colour in 82.0% (88.0%) and hair colour in 80.0% (72.0%). The area under the curve was 0.96 for dark skin, 0.88 for brown irises and 0.87 for black hair; sensitivity for non-brown irises was 52.5%. Overall, 83.7% of participants were assigned to their expected ancestry zone (no-information rate 66.5%); sensitivity for the Eastern zone was 80.0% (95% CI 60.9–91.1; n = 25). Conclusion. In this cohort, skin colour prediction clearly exceeded the baseline, whereas iris and hair colour prediction improved little on it. The panel may support investigative leads, but independent test samples are needed before casework use.