1.Machine Learning-Based Computed Tomography-Derived Fractional Flow Reserve Predicts Need for Coronary Revascularisation Prior to Transcatheter Aortic Valve Implantation
Kai Dick David LEUNG ; Pan Pan NG ; Boris Chun Kei CHOW ; Keith Wan Hang CHIU ; Neeraj Ramesh MAHBOOBANI ; Yuet-Wong CHENG ; Eric Chi Yuen WONG ; Alan Ka Chun CHAN ; Augus Shing Fung CHUI ; Michael Kang-Yin LEE ; Jonan Chun Yin LEE
Cardiovascular Imaging Asia 2025;9(1):2-8
Objective:
Patients with severe symptomatic aortic stenosis are assessed for coronary artery disease (CAD) prior to transcatheter aortic valve implantation (TAVI) with treatment implications. Invasive coronary angiography (ICA) is the recommended modality but is associated with peri-procedural complications. Integrating machine learning (ML)-based computed tomography-derived fractional flow reserve (CT-FFR) into existing TAVI-planning CT protocol may aid exclusion of significant CAD and thus avoiding ICA in selected patients.
Materials and Methods:
A single-center, retrospective study was conducted, 41 TAVI candidates with both TAVI-planning CT and ICA performed were analyzed. CT datasets were evaluated by a ML-based CT-FFR software. Beta-blocker and nitroglycerin were not administered in these patients. The primary outcome was to identify significant CAD. The diagnostic performance of CT-FFR was compared against ICA.
Results:
On per-patient level, the sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV) and diagnostic accuracy were 89%, 94%, 80%, 97% and 93%, respectively. On per-vessel level, the sensitivity, specificity, PPV, NPV and diagnostic accuracy were 75%, 94%, 67%, 96% and 92%, respectively. The area under the receiver operative characteristics curve per individual coronary vessels yielded overall 0.90 (95% confidence interval 85%–95%). ICA may be avoided in up to 80% of patients if CT-FFR results were negative.
Conclusion
ML-based CT-FFR can provide accurate screening capabilities for significant CAD thus avoiding ICA. Its integration to existing TAVI-planning CT is feasible with the potential of improving the safety and efficiency of pre-TAVI CAD assessment.
2.Comparison of acute heart rate variability (HRV) response between neuromuscular and metabolic training in collegiate high-intensity intermittent sport athletes: A pilot study protocol
Kris Anthony T. Agarao ; Edwin Dwight De mesa ; Ivan Neil Gomez ; Angelica Phoebe Rane Mendinueto ; Aaron Miguel Ng ; Beatrice Therese Agustin ; Michael Kaleb Kim ; Sophia Anne Baetiong ; Reiniel Christian Rafael ; Jayemarie Gene Taguibao
Philippine Journal of Allied Health Sciences 2025;9(1):43-50
BACKGROUND
Heart rate variability (HRV) is a common tool for assessing autonomic nervous system activity and monitoring training load in athletes. However, limited research has explored how HRV responds to different forms of resistance training, particularly in high-intensity intermittent sports like basketball and football.
OBJECTIVEThis study aims to compare the acute HRV responses between neuromuscular and metabolic training in collegiate athletes involved in high-intensity intermittent sports.
STUDY DESIGNA comparative cross-sectional study with a quasi-experimental crossover design will be employed.
METHODSCollegiate athletes will be randomly assigned to undergo both neuromuscular and metabolic training sessions with a one-week wash-out period in between. HRV data will be recorded using the Polar H10 chest strap during each session.
DATA ANALYSISDescriptive statistics will summarize salient participant characteristics and HRV measurements. Inferential analysis will use paired t-tests or Wilcoxon signed-rank tests based on normality, assessed via the Kolmogorov-Smirnov test. All statistical analyses will be conducted using the IBM SPSS (ver.25) with a confidence interval set. at 95% and a critical α equal to 0.05.
EXPECTED RESULTSNeuromuscular training is expected to elicit higher low-frequency (LF) power and an increased LF/HF ratio, reflecting greater sympathetic activation, while metabolic training is expected to show lower LF power and a decreased LF/HF ratio, indicating a more balanced autonomic response. These findings will offer insights into the differential autonomic impacts of these training modalities.
Human ; Heart Rate ; Nervous System ; Sympathetic Nervous System
3.A comparison of retinoblastoma cases in the Philippines
Roland Joseph D. Tan ; Gary John V. Mercado ; Patricia E. Cabrera ; Paulita Pamela P. Astudillo ; Rolando Enrique D. Domingo ; Josept Mari S. Poblete ; Charmaine Grace M. Cabebe ; Adriel Vincent R. Te ; Melissa Anne S. Gonzales ; Jocelyn G. Sy ; Beltran Alexis A. Aclan ; Jayson T. So ; Fatima G. Regala ; Kimberley Amanda K. Comia ; Josemaria M. Castro ; Mara Augustine S. Galang ; Aldous Dominic C. Cabanlas ; Benedicto Juan E. Aguilar ; Gabrielle S. Evangelista ; John Michael Maniwan ; Andrei P. Martin ; Calvin Y. Martinez ; John Alfred A. Lim ; Rena Ivy Bascuna ; Rachel M. Ng ; Kevin B. Agsaoay ; Kris Zana A. Arao ; Ellaine Rose V. Apostol ; Beatriz M. Prieto
Philippine Journal of Ophthalmology 2024;49(2):106-114
OBJECTIVE
This study compared the demographics, clinical profile, treatment, and outcomes of retinoblastoma patients seen at medical institutions in the Philippines between two time periods: 2010 to 2015 and 2016 to 2020.
METHODSThis was a multicenter, analytical, cohort study using review of medical charts and databases of retinoblastoma patients seen in 11 medical institutions from 2010 to 2020.
RESULTSThere were 636 patients (821 eyes) included in this study: 330 patients were seen in 2010 to 2015 while 306 in 2016 to 2020. More cases per annum were seen in the latter timeline. The number of patients with unilateral disease was not significantly different between the two time periods (p=0.51). Age at onset of symptom, age at initial consultation, and delay in consult were also not significantly different between the two time periods (p > 0.05). Patients had significantly different distributions of intraocular grades (p < 0.0001) and systemic staging (p < 0.0001) between the two time periods. Enucleation was the most common surgical treatment performed in both timelines. There was significant difference in the status of patients based on the need for systemic chemotherapy (p < 0.01). There was significant difference in outcome between the two time periods, including the proportions of living and deceased patients.
CONCLUSIONThis study compared the most comprehensive data on retinoblastoma patients in the country. There was no improvement in early health seeking behavior based on similar age at initial consult and delay in consult. Enucleation remained the most common treatment mode as opposed to chemotherapy due to similar percentage of patients with unilateral disease, an indication for enucleation rather than chemotherapy.
Human ; Retinoblastoma ; Philippines ; Epidemiology ; Treatment ; Therapeutics
4.Prevalence of and risk factors associated with Methicillin-Resistant Staphylococcus aureus(MRSA) carriage among cutting specialties at the Ospital ng Maynila Medical Center
Michael Robert Q. Monteverde ; Ramon Carmelo V. Alcira
Philippine Journal of Otolaryngology Head and Neck Surgery 2024;39(1):12-18
Objective:
To determine the point prevalence of, and risk factors associated with MRSA carriage among resident physicians of surgical departments at the Ospital ng Maynila Medical Center.
Methods:
Design: Cross-sectional Study. Setting: Tertiary Government Training Hospital. Participants:51 resident physicians from different surgical departments (general surgery, obstetrics and gynecology, ophthalmology, otorhinolaryngology – head and neck surgery and dermatology) underwent nasal and pharyngeal swabs with microbial culture and sensitivity testing to identify MRSA carriers. Fisher Exact Test and logistic regression were utilized to determine associations between MRSA carriage and various risk factors including frequency of hand washing and departmental affiliation.
Results:
Overall prevalence rate of MRSA carriage was 9.8%. Otorhinolaryngology residents had the highest combined prevalence of MRSA of 42.9%, significantly higher compared to other departments and were used as a reference in logistic regression analyses. Notably, handwashing only once daily was associated with a 20-fold increase in the risk of MRSA carriage (OR 20.5, 95% CI: 1.82 to 230, p = .014). Other departments did not demonstrate statistically significant differences in MRSA carriage rates.
Conclusions
Otorhinolaryngology resident physicians had the highest combined prevalence of MRSA and nasal MRSA was found only in otorhinolaryngology residents. The surgical subspecialty and frequency of handwashing of the healthcare worker were identified as important risk factors to develop MRSA carriage. Targeted interventions (including enhanced infection control protocols and regular screening) are needed especially in high-risk departments.
Methicillin-Resistant Staphylococcus aureus
;
Surgical Wound Infection
5.Clinical profile of Keratoconus patients at the Philippine General Hospital
Pablito F. Sandoval Jr. Sandoval Jr. ; George Michael N. Sosuan ; Reginald Robert G. Tan ; Ruben Lim Bon Siong
Philippine Journal of Ophthalmology 2024;49(1):33-38
Objectives:
This study described the clinical profile of patients with keratoconus at a single tertiary referral hospital.
Methods:
This was a single-center, retrospective, cross-sectional study that reviewed medical records of
patients diagnosed with keratoconus from January 2015 to August 2022. Data on the clinical profile,
intervention, and clinical outcomes were collected from the chart review.
Results:
Forty (40) patients (79 eyes) were included in the study. Majority (98%) had bilateral disease in which
22 (55.5%) were affected asymmetrically. The mean age was 21 years. Most patients (72.5%) were male. Blurring
of vision was the chief complaint in all patients. Atopy was present in 23 patients (57.5%). History of vigorous
eye rubbing was present in 31 (77.5%). The mean interval from onset of symptoms to consult was 46.4 ± 33.38
months. The mean pinhole corrected distance visual acuity was 0.47 ± 0.41 (Snellen equivalent of 20/59). The
average spherical equivalent was -7.48D ± 6.99D. Corneal protrusion on slit-lamp biomicroscopy was seen in
78 eyes (98.7%). Other findings included Fleischer ring (53.2%), Vogt's striae (19.0%), and apical corneal scar
(24.0%). Only one eye (1.3%) had no corneal findings. Thirty-nine eyes (49.3%) were classified as advancedsevere keratoconus. Rigid contact lens was planned for 60 eyes (75.9%). Sixty-two eyes (78.5%) were for
collagen cross-linking. Deep anterior lamellar keratoplasty was planned in 10 eyes (12.7%) and penetrating
keratoplasty in two eyes (2.5%).
Conclusion
Keratoconus at the Philippine General Hospital was most frequently seen in young males and
asymmetrically affects both eyes. Patients consulted relatively late and presented with a more advanced stage of
the disease. History of ocular allergy and eye rubbing were significant risk factors. Improving awareness of this
condition must be emphasized to detect keratoconus earlier.
Keratoconus
;
Cornea
;
Demography
;
Philippines
6.Exploring Clinical Subgroups of Participants with Major Depressive Disorder that may Benefit from Adjunctive Minocycline Treatment
Gerard ANMELLA ; Alcy MEEHAN ; Melanie ASHTON ; Mohammadreza MOHEBBI ; Giovanna FICO ; Chee H. NG ; Michael MAES ; Lesley BERK ; Michele De PRISCO ; Ajeet B. SINGH ; Gin S. MALHI ; Michael BERK ; Seetal DODD ; Diego HIDALGO-MAZZEI ; Iria GRANDE ; Isabella PACCHIAROTTI ; Andrea MURRU ; Eduard VIETA ; Olivia M. DEAN
Clinical Psychopharmacology and Neuroscience 2024;22(1):33-44
Objective:
To explore illness-related factors in patients with major depressive disorder (MDD) recipients of adjunctive minocycline (200 mg/day) treatment. The analysis included participants experiencing MDD from a 12-week, double blind, placebo-controlled, randomized clinical trial (RCT).
Methods:
This is a sub-analysis of a RCT of all 71 participants who took part in the trial. The impact of illness chronicity (illness duration and number of depressive episodes), systemic illness (endocrine, cardiovascular and obesity), adverse effects and minocycline were evaluated as change from baseline to endpoint (12-week) using ANCOVA.
Results:
There was a consistent but statistically non-significant trend on all outcomes in favour of the use of adjunctive minocycline for participants without systemic illness, less illness chronicity, and fewer adverse effects.
Conclusion
Understanding the relationship between MDD and illness chronicity, comorbid systemic illness, and adverse effects, can potentially better characterise those individuals who are more likely to respond to adjunctive anti-inflammatory medications.
7.Asia-Pacific consensus on long-term and sequential therapy for osteoporosis
Ta-Wei TAI ; Hsuan-Yu CHEN ; Chien-An SHIH ; Chun-Feng HUANG ; Eugene MCCLOSKEY ; Joon-Kiong LEE ; Swan Sim YEAP ; Ching-Lung CHEUNG ; Natthinee CHARATCHAROENWITTHAYA ; Unnop JAISAMRARN ; Vilai KUPTNIRATSAIKUL ; Rong-Sen YANG ; Sung-Yen LIN ; Akira TAGUCHI ; Satoshi MORI ; Julie LI-YU ; Seng Bin ANG ; Ding-Cheng CHAN ; Wai Sin CHAN ; Hou NG ; Jung-Fu CHEN ; Shih-Te TU ; Hai-Hua CHUANG ; Yin-Fan CHANG ; Fang-Ping CHEN ; Keh-Sung TSAI ; Peter R. EBELING ; Fernando MARIN ; Francisco Javier Nistal RODRÍGUEZ ; Huipeng SHI ; Kyu Ri HWANG ; Kwang-Kyoun KIM ; Yoon-Sok CHUNG ; Ian R. REID ; Manju CHANDRAN ; Serge FERRARI ; E Michael LEWIECKI ; Fen Lee HEW ; Lan T. HO-PHAM ; Tuan Van NGUYEN ; Van Hy NGUYEN ; Sarath LEKAMWASAM ; Dipendra PANDEY ; Sanjay BHADADA ; Chung-Hwan CHEN ; Jawl-Shan HWANG ; Chih-Hsing WU
Osteoporosis and Sarcopenia 2024;10(1):3-10
Objectives:
This study aimed to present the Asia-Pacific consensus on long-term and sequential therapy for osteoporosis, offering evidence-based recommendations for the effective management of this chronic condition.The primary focus is on achieving optimal fracture prevention through a comprehensive, individualized approach.
Methods:
A panel of experts convened to develop consensus statements by synthesizing the current literature and leveraging clinical expertise. The review encompassed long-term anti-osteoporosis medication goals, first-line treatments for individuals at very high fracture risk, and the strategic integration of anabolic and anti resorptive agents in sequential therapy approaches.
Results:
The panelists reached a consensus on 12 statements. Key recommendations included advocating for anabolic agents as the first-line treatment for individuals at very high fracture risk and transitioning to anti resorptive agents following the completion of anabolic therapy. Anabolic therapy remains an option for in dividuals experiencing new fractures or persistent high fracture risk despite antiresorptive treatment. In cases of inadequate response, the consensus recommended considering a switch to more potent medications. The consensus also addressed the management of medication-related complications, proposing alternatives instead of discontinuation of treatment.
Conclusions
This consensus provides a comprehensive, cost-effective strategy for fracture prevention with an emphasis on shared decision-making and the incorporation of country-specific case management systems, such as fracture liaison services. It serves as a valuable guide for healthcare professionals in the Asia-Pacific region, contributing to the ongoing evolution of osteoporosis management.
8.Family and community medicine in the context of universal health care: Introduction to recommendations for health policy development
Noel L. Espallardo ; Suzzanne Langcauon ; Carlo Matanguihan ; John Michael Deblois
The Filipino Family Physician 2024;62(2):272-278
BACKGROUND
Family and Community Medicine is a medical specialty that plays a crucial role in the healthcare system and will be in the best capacity to provide primary care services, coordinate referrals to specialists when needed, and promote continuity of care across different healthcare settings in the implementation of the Universal Health Care Law. These are policy recommendations on how family and community medicine can play a significant role in the successful implementation of the UHC.
POLICY RECOMMENDATIONSRecommendation #1. The undergraduate curriculum in Family and Community Medicine must be competency based.
Recommendation #2. The competency outcome of Family and Community Medicine undergraduate curriculum must be aligned with the need of the Philippine health system in the context of Universal Health Care reform.
Recommendation #3. The process of delivery of Family and Community Medicine undergraduate curriculum must adopt to new technology and teaching innovation.
Recommendation #4. Family and Community Medicine must develop strategies to make it as career choice.
Recommendation #5. Family and Community Medicine must develop and implement an effective and sustainable faculty development program.
Recommendation #6. Family and Community Medicine must be socially accountable to the community it serves.
Recommendation #7. Family and Community Medicine must be one of the major core competencies of a licensed physician ready to practice as primary care provider in the UHC.
Recommendation #8. Early placement for Family and Community Medicine practice must be available for newly licensed physicians.
Recommendation #9. Family and Community Medicine practitioners must be provided with continuing professional education and training to provide quality patient care.
Recommendation #10. Family and Community Medicine postgraduate education and training must adopt to new technology and training innovation.
Recommendation #11. Family and Community Medicine postgraduate training should cover urban and rural community health service.
Recommendation #12. Family and Community Medicine continuing professional education and training programs must meet the prescribed standards.
Recommendation #13. Regulation of Family and Community Medicine practice must be a public-private partnership.
Human ; Universal Health Care ; Policy Making ; Community Health Services
9.Does Post-traumatic Stress Disorder Impact Treatment Outcomes within a Randomised Controlled Trial of Mitochondrial Agents for Bipolar Depression?
Samantha E. RUSSELL ; Anna L. WROBEL ; Melanie M. ASHTON ; Alyna TURNER ; Mohammadreza MOHEBBI ; Michael BERK ; Sue COTTON ; Seetal DODD ; Chee H. NG ; Gin S. MALHI ; Olivia M. DEAN
Clinical Psychopharmacology and Neuroscience 2023;21(3):457-465
Objective:
Bipolar disorder often co-occurs with post-traumatic stress disorder, yet few studies have investigated the impact of post-traumatic stress disorder in bipolar disorder on treatment outcomes. The aim of this sub-analysis was to explore symptoms and functioning outcomes between those with bipolar disorder alone and those with comorbid bipolar disorder and post-traumatic stress disorder.
Methods:
Participants (n = 148) with bipolar depression were randomised to: (i) N-acetylcysteine alone; (ii) a combination of nutraceuticals; (iii) or placebo (in addition to treatment as usual) for 16 weeks (+4 weeks discontinuation).Differences between bipolar disorder and comorbid bipolar disorder and post-traumatic stress disorder on symptoms and functioning at five timepoints, as well as on the rate of change from baseline to week 16 and baseline to week 20, were examined.
Results:
There were no baseline differences between bipolar disorder alone and comorbid bipolar disorder and post-traumatic stress disorder apart from the bipolar disorder alone group being significantly more likely to be married (p = 0.01). There were also no significant differences between bipolar disorder alone and comorbid bipolar disorder and post-traumatic stress disorder on symptoms and functioning.
Conclusion
There were no differences in clinical outcomes over time within the context of an adjunctive randomised controlled trial between those with bipolar disorder alone compared to those with comorbid bipolar disorder and post-traumatic stress disorder. However, differences in psychosocial factors may provide targets for areas of specific support for people with comorbid bipolar disorder and post-traumatic stress disorder.
10.Misuse of prescription medicines is as prevalent as the use of recreational drugs and novel psychoactive substances in Singapore: an unrecognised public health issue?
Wui Ling CHAN ; Paul Ivor DARGAN ; Colleen Michelle HAYNES ; Jody Lynn GREEN ; Joshua Curtis BLACK ; Richard Charles DART ; David Michael WOOD
Singapore medical journal 2022;63(10):572-576
INTRODUCTION:
Misuse of prescription medicines and the harms associated with such use are growing threats across the world. There is currently, however, limited data on the extent of prescription medicine misuse in Singapore and whether this is a current threat in the country.
METHODS:
An online survey, limited to 1,000 individuals (aged 21 years and over) who were residents in Singapore, was administered through a survey panel company in September 2015. The survey collected information on participant demographics, and their awareness, self-reported lifetime and past-year misuse of commonly available prescription medicines in Singapore as well as the use of a range of recreational drugs and novel psychoactive substances (NPS).
RESULTS:
Lifetime (6.7%) and past-year (4.8%) misuse of any prescription medicine was comparable to lifetime (6.0%) and past-year (3.0%) use of any recreational drugs/NPS. The top five prescription medicines for lifetime misuse were: diazepam (2.7%); codeine (2.3%); dhasedyl (promethazine, codeine and ephedrine; 1.6%); panadeine (paracetamol and codeine; 1.5%); and methylphenidate (1.2%). The top five drugs for past-year misuse were: diazepam (1.6%); codeine (0.9%); panadeine (0.7%); alprazolam (0.6%); baclofen (0.6%); and gabapentin (0.6%).
CONCLUSION
Misuse of prescription medicine in Singapore was common, with prevalence comparable to the use of recreational drugs/NPS. A common source for misused drugs was physicians. Further studies are required to determine whether this is more widespread in Singapore and establish the different forms of drug diversion, so that appropriate prevention strategies can be implemented.
Humans
;
Illicit Drugs/adverse effects*
;
Public Health
;
Singapore/epidemiology*
;
Substance-Related Disorders/drug therapy*
;
Prescription Drugs/adverse effects*
;
Codeine
;
Diazepam
;
Prescriptions


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