1.The effect of cycled light exposure on clinical outcomes of preterm infants admitted in neonatal intensive care units
Roffell D. Felisilda ; Katrina Mae G. Lee ; Christine Corina Grace L. Basilla
The PCMC Journal 2025;21(1):27-41
BACKGROUND:
Hospitalization in neonatal intensive care units (NICU) exposes preterm infants to adverse stimuli, including continuous 24-hour lighting. There is currently no standardized NICU layout advised for the best development of preterm neonates. This meta-analysis aimed to assess the impact of cycled light (CL) exposure on clinical outcomes in premature infants admitted to NICU as synthesized in previous studies.
MATERIALS AND METHODS:
This meta-analysis protocol was developed following the preferred reporting items for systematic review and meta-analysis protocols (PRISMA-P) statement. A search was performed in PubMed/MEDLINE, EMBASE, Scopus, and Cochrane databases using the MeSH/key words: ―light exposure‖ AND pre-term AND cycled AND (RCT OR trials OR ―randomized controlled trial). The pooled Mean Difference with corresponding 95% CI was computed for weight gain, duration until start of enteral feeding, and duration of ICU stay using the Mantel–Haenszel random-effect model.
RESULTS:
Nine studies were included. The pooled mean difference showed that among preterm infants who had cycled light exposure, average daily weight gain (MD=6.24 grams, 95%CI=1.36 to 11.13, p=0.01) was significantly higher than those with continuous light exposure. The average time to start enteral feeding (MD=-3.84 days, 95%CI=-7.56 to -0.13, p=0.04) and average ICU stay (MD=-8.43 days, 95%CI=-12.54 to -4.31, p<0.0001) among neonates who had cycled light exposure were significantly shorter.
CONCLUSION
Benefits were seen in preterm infants when exposed to cycled light as opposed to continuous light. CL exposed infants showed a daily weight gain that was 6.24 grams higher, on average, and began enteral feeding nearly 4 days sooner. It led to a decrease in the duration of ICU stay by around 8 to 9 days on average. Further trials to determine the impact of cycled light exposure on morbidity and mortality among preterm neonates is recommended.
Human
;
Male,Female
;
Systematic review
;
Meta-analysis
;
Infant, Premature
;
Intensive care units, Neonatal
;
Intensive care, Neonatal
;
Light
;
Lighting
;
Critical care
2.Spinal extramedullary hematopoiesis causing spinal cord compression in radiation-induced bone marrow aplasia: A case report
Rowel David D. Yap ; Patrick Neil A. Guiao ; Deonne Thaddeus V. Gauiran
Acta Medica Philippina 2025;59(11):94-97
In rare cases with no clinical practice guidelines available, the approach heavily relies on small studies, reports, and professional experience based on sound clinical judgement from available data.
We present a case of a 52-year-old male radiation technologist with a 5-year history of pancytopenia diagnosed with radiation-induced marrow aplasia after presenting with bilateral lower extremity weakness and numbness. MRI revealed spinal EMH along T3 to T12. He was given steroids and radiation therapy (RT) of 18Gy in 10 fractions with improvement in sensory status at 4th session of RT and was discharged with steroid on tapering and maintenance of eltrombopag.
BM aplasia following chronic low-level radiation exposure results from the accumulation of cytogenetic abnormalities over time. EMH is a compensatory mechanism for BM aplasia, the diagnosis of which is established by MRI. In spinal EMH, transverse myelopathy occurs from spinal cord compression (SCC). As of writing and with our literature-search, spinal EMH has never been reported in patients with aplastic anemia or radiation-related BM aplasia. With the paucity of available data, there is currently no specific guidelines in managing BM aplasia from radiation and consequent SCC. However, as with most cases of SCC, radiotherapy, steroids, and surgical decompression are viable options. This case report will add to the very small pool of information on EMH from radiation-induced BM aplasia and its approach to management especially in this rare, never-before-reported presentation.
Human ; Male ; Middle Aged: 45-64 Yrs Old ; Radiation
4.Ending nuclear weapons, before they end us
Kamran Abbasi ; Parveen Ali ; Virginia Barbour ; Marion Birch ; Inga Blum ; Peter Doherty ; Andy Haines ; Ira Helfand ; Richard Horton ; Kati Juva ; José ; Florencio F. Lapeñ ; a, Jr. ; Robert Mash ; Olga Mironova ; Arun Mitra ; Carlos Monteiro ; Elena N. Naumova ; David Onazi ; Tilman Ruff ; Peush Sahni ; James Tumwine ; Carlos Umañ ; a ; Paul Yonga ; Joe Thomas ; Chris Zielinski
Philippine Journal of Otolaryngology Head and Neck Surgery 2025;40(1):6-8
5.Breast cancer in the Philippines: A financing cost assessment study.
Madeleine DE ROSAS-VALERA ; Julienne Clarize P. LECHUGA ; Lourdes Risa S. YAPCHIONGCO ; Necy S. JUAT ; Mary Juliet DE ROSAS-LABITIGAN ; Maria Lourdes E. AMARILLO ; Leo M. FLORES ; Maebel Audrey R. JOAQUIN ; Adelberto R. LAMBINICIO
Acta Medica Philippina 2025;59(17):7-15
OBJECTIVES
The aim of the study is to estimate the cost of breast cancer diagnosis, treatment, and management in the Philippines. Specifically, it aims to identify the resource requirements and interventions related to breast cancer diagnosis, treatment, and management, measure resource volumes (number of units), learn to value resource items (unit costs), and determine the total cost of treatment per disease stage.
METHODSThe study covered nine tertiary hospitals, seven of which were government hospitals and two were private hospitals, with all tertiary hospitals providing breast cancer services and accredited by Philippine Health Insurance Corporation (PHIC or PhilHealth) for the Z-Benefit Package. Interventions and services related to breast cancer included radiographic procedures, laboratory and imaging tests, chemotherapy drugs and medications, medical and surgical supplies, surgical rates (for breast surgery), accommodation, staff time and salary/professional fees, and other procedure fees. The study conducted in 2022, examined cost prices of breast cancer interventions and services from stage 1–3B.
Purposive and convenience sampling were used based on PhilHealth accreditation and willingness of hospitals to participate in the study. The study conducted a focus group discussion with oncologists, radiologists, anesthesiologists, and other health care providers to validate the clinical guideline used and to solicit inputs to the costing design, analysis framework, and tools for data collection. Data collection of financial cost information (charge price) was conducted using a set of costing matrices filled out by the various departments of the hospitals. Costs and median rates were calculated across hospitals on diagnostics and imaging tests, surgery costs of both public and private facilities, medical treatment, and radiotherapy.
RESULTSBreast MRI, Breast Panel, and Chest CT Scan are the top 3 most expensive diagnostic procedures ranging from PhP 8,102.00 to PhP 9,800.00 per procedure. Surgical procedures for breast cancer at private hospitals and public hospitals showed huge differences in costs. The cost of a cycle of chemotherapy ranges from PhP 596.70 to PhP 3,700.00 per session, while the cost of targeted therapy can cost up to PhP 46,394.21 per session. A year of hormone therapy ranges from PhP 3,276.00 with the use of Tamoxifen, and up to PhP 68,284.00 with Goserelin. Aromatase inhibitors such as Anastrozole and Letrozole cost from PhP 18,000 to PhP 36,000, respectively. Multiple cycles depending on the diagnosis are prescribed per patient and used in combination with other chemotherapy medications or other therapies such as targeted therapy and hormone therapy are usually taken daily up to 5 to 10 years. Conventional radiotherapy can cost up to PhP 88,150.00 covering 28 sessions, CT simulation, and CT planning.
CONCLUSIONThis cost study provides relevant information and better perspective on benefit development for the PHIC, policy development for Department of Health on where and how to focus their support for the patient’s financial preparedness to address medical and f inancial catastrophes.
PhilHealth needs to guide the health care providers of their costing method and to develop their own integrated, interoperable, and comprehensive cost data library.
It recommends that the government allocate budget and cover for screening and assessment for earlier stage diagnosis of patients and lower health expenditure costs on cancer treatment.
Human ; Breast Neoplasms ; Drug Therapy ; Chemotherapy ; Mastectomy ; Radiotherapy ; Radiation Therapy
6.Reduced radiotherapy volumes for cervical cancer in a second trimester gravid patient: A case report.
Patricia ONG ; Mark DUMAGO ; Carl Jay JAINAR ; Vannesza Hendricke CHUA ; Kelvin Ken YU ; Jocelyn MARIANO ; Warren BACORRO
Journal of Medicine University of Santo Tomas 2025;9(2):1777-1783
PURPOSE
To report the technical details and outcomes of a case of cervical cancer in pregnancy treated with reduced standard radiation volume via Intensity Modulated Radiation Therapy (IMRT).
METHODSA 33-year-old G4P3 (3003) was diagnosed with cervical squamous cell carcinoma at 17 weeks of gestation. She had a 5-year history of intermittent post-coital bleeding and an incidental finding of a cervical mass during prenatal ultrasound. Internal examination revealed a 6-cm mass with no extension to the upper vagina and pliable bilateral parametria, leading to a staging of IB3. A multidisciplinary meeting with a gynecologic oncologist, radiation oncologist, medical ethicist and the patient was held wherein different treatment options were discussed. She consented to definitive external beam radiation therapy (EBRT) with concurrent cisplatin and was administered during 19-25 weeks of gestation using IMRT. A prescribed dose of 45 Gy in 25 fractions was delivered to the entire cervix with a 1-cm geometric expansion covering the lower uterus, and upper vagina as well as the pelvic lymph nodes, followed by four fractions of brachytherapy.
RESULTSThe patient tolerated treatment with only grade 1 gastrointestinal and genitourinary adverse effects. After completion of concurrent chemoradiation, she underwent induction of labor and delivered a nonviable fetus. Three months post-treatment, MRI found no evidence of disease. At 15 months follow-up, she remains asymptomatic with no palpable disease.
CONCLUSIONThis report demonstrates that treating only the involved uterus may be considered in cases wherein giving the full radiation dose to the whole uterus may lead to significant toxicities and eventual treatment interruption.
Human ; Female ; Adult: 25-44 Yrs Old ; Pregnancy Trimester, Second ; Radiotherapy ; Radiation ; Pregnancy ; Neoplasms
7.Striking a balance: Medical ethics insights on treating cervical cancer in pregnancy with reduced standard radiation via IMRT.
Journal of Medicine University of Santo Tomas 2025;9(2):1784-1788
Cervical cancer during pregnancy poses a rare and complex clinical and ethical challenge, particularly in low- and middle-income countries such as the Philippines. The dual obligation to preserve maternal life while protecting fetal viability requires a nuanced balance between medical science, ethics, and cultural values.This commentary explores the ethical implications of treating cervical cancer in pregnancy using Intensity Modulated Radiation Therapy (IMRT) at reduced standard radiation volumes, highlighting how medical innovation intersects with the principles of biomedical ethics.
Human ; Neoplasms ; Pregnancy ; Radiotherapy ; Radiation ; Ethics, Medical ; Bioethics ; Fetal Viability ; Life
8.Carcinoma buccal mucosa treated with definitive hypofractionated accelerated radiotherapy: a retrospective analysis of treatment outcomes.
Geethu BABU ; Rejnish RAVIKUMAR ; Malu RAFI ; Zuzaki SHARAFUDDIN ; Arun SHANKAR S ; Preethi Sara GEORGE ; Cessal Thommachan KAINICKAL ; Ramadas KUNNAMBATH
Singapore medical journal 2025;66(7):368-372
INTRODUCTION:
Oral cancer is a major public health concern in India. Both conventional and altered fractionation radiotherapy schedules have been used in curative treatment of oral cancer. This study aimed to retrospectively evaluate the clinical profile and treatment outcomes of patients with carcinoma buccal mucosa who underwent treatment with definitive hypofractionated accelerated radiotherapy.
METHODS:
A total of 517 patients treated from January 2011 to December 2016 were eligible for the analysis. All patients were treated with definitive hypofractionated accelerated radiotherapy schedule of 5,250 cGy in 15 fractions over 3 weeks. Survival estimates were generated using the Kaplan-Meier method.
RESULTS:
At a median follow-up of 77.4 months, 473 (91.5%) patients attained complete remission with radiation therapy. The 5-year disease-free survival (DFS) and overall survival (OS) rates were 69% and 80.5%, respectively. The 5-year OS for stage I, II, III and IVa tumours was 80.3%, 84.4%, 81.4% and 73.7%, respectively, and the DFS was 75.7%, 73.2%, 69.6% and 60.2%, respectively. Age >50 years was found to be a significant factor affecting DFS ( P = 0.026) and OS ( P = 0.048) in multivariate analysis. Fifty-three (10.3%) patients developed osteoradionecrosis of the mandible.
CONCLUSION
Excellent outcome could be achieved in less-aggressive, low-volume carcinoma of the buccal mucosa with radical accelerated hypofractionated radiotherapy. A radiotherapy schedule over a 3-week period is useful in high-volume centres.
Humans
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Retrospective Studies
;
Male
;
Female
;
Middle Aged
;
Mouth Neoplasms/mortality*
;
Mouth Mucosa/radiation effects*
;
Treatment Outcome
;
Aged
;
Adult
;
Radiation Dose Hypofractionation
;
Disease-Free Survival
;
India
;
Kaplan-Meier Estimate
;
Dose Fractionation, Radiation
;
Aged, 80 and over
9.The Singapore Green Plan 2030: occupational health hazards in the Singapore green economy.
Wei Xiang LIM ; Mei Ling Licia TAN ; Tzu Li Sylvia TEO ; Wee Hoe GAN ; Shiu Hong Joshua WONG
Singapore medical journal 2025;66(4):181-189
The Singapore Green Plan 2030 was released by the Singapore government to set targets for sustainability by 2030. The adoption of novel technologies, processes and substances creates new jobs, and such developments bring about new challenges and risks for both employers and workers. Beyond emerging hazards, traditional hazards still remain, but they may take on new forms through new work processes. This review aims to provide an overview of the potential occupational health issues we may encounter or anticipate in these key sectors: solar energy, waste management and recycling, green buildings, electric vehicles and battery recycling, and sustainable fuels. While existing Occupational Safety and Health regulations in Singapore serve as a foundation, there may be gaps in addressing the specific hazards and risks associated with green jobs. In this review, we propose and outline possible approaches to the protection of worker safety and health.
Singapore
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Humans
;
Occupational Health
;
Recycling
;
Waste Management
;
Solar Energy
;
Occupational Exposure
10.A low-dose CT reconstruction method using sub-pixel anisotropic diffusion.
Shizhou TANG ; Ruolan SU ; Shuting LI ; Zhenzhen LAI ; Jinhong HUANG ; Shanzhou NIU
Journal of Southern Medical University 2025;45(1):162-169
OBJECTIVES:
We present a new low-dose CT reconstruction method using sub-pixel and anisotropic diffusion.
METHODS:
The sub-pixel intensity values and their second-order differences were obtained using linear interpolation techniques, and the new gradient information was then embedded into an anisotropic diffusion process, which was introduced into a penalty-weighted least squares model to reduce the noise in low-dose CT projection data. The high-quality CT image was finally reconstructed using the classical filtered back-projection (FBP) algorithm from the estimated data.
RESULTS:
In the Shepp-Logan phantom experiments, the structural similarity (SSIM) index of the CT image reconstructed by the proposed algorithm, as compared with FBP, PWLS-Gibbs and PWLS-TV algorithms, was increased by 28.13%, 5.49%, and 0.91%, the feature similarity (FSIM) index was increased by 21.08%, 1.78%, and 1.36%, and the root mean square error (RMSE) was reduced by 69.59%, 18.96%, and 3.90%, respectively. In the digital XCAT phantom experiments, the SSIM index of the CT image reconstructed by the proposed algorithm, as compared with FBP, PWLS-Gibbs and PWLS-TV algorithms, was increased by 14.24%, 1.43% and 7.89%, the FSIM index was increased by 9.61%, 1.78% and 5.66%, and the RMSE was reduced by 26.88%, 9.41% and 18.39%, respectively. In clinical experiments, the SSIM index of the image reconstructed using the proposed algorithm was increased by 19.24%, 15.63% and 3.68%, the FSIM index was increased by 4.30%, 2.92% and 0.43%, and the RMSE was reduced by 44.60%, 36.84% and 15.22% in comparison with FBP, PWLS-Gibbs and PWLS-TV algorithms, respectively.
CONCLUSIONS
The proposed method can effectively reduce the noises and artifacts while maintaining the structural details in low-dose CT images.
Tomography, X-Ray Computed/methods*
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Algorithms
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Phantoms, Imaging
;
Anisotropy
;
Image Processing, Computer-Assisted/methods*
;
Humans
;
Radiation Dosage


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