1.Prevalence of Symptomatic Reherniation After Lumbar Discectomy Using a Bone-Anchored Annular Closure Device and Associated Contributing Factors: A MetaAnalysis
Al-Gunaid ST ; Iqhrammullah M ; Maulana G ; Qanita I ; Adista MA ; Hidayat I
Malaysian Orthopaedic Journal 2026;20(No. 1):45-
Introduction: The primary issue following lumbar
discectomy for disc herniation is the risk of reherniation in
the post-operative period. Many surgical techniques have
been proposed to treat disc reherniation, however, the
optimal one remains variable. This meta-analysis aimed to
investigate the prevalence of symptomatic reherniation after
using a Bone-anchored annular closure device following
lumbar discectomy and the contributing factors.
Materials and methods: Identification of published
literature was performed on PubMed, Google Scholar,
Scopus, and Web of Science databases. Studies published
until 14 February 2024 reported the prevalence of
symptomatic reherniation after using a Bone-anchored
annular closure device following lumbar discectomy and the
associated contributing factors. A random effects model was
used to conduct Bayesian frequentist network meta-analysis
and pair-wise meta-analysis, with the assessment based on
standardised mean difference (SMD) and 95% confidence
interval (CI).
Results: Eleven studies published in 2012 − 2022 recruiting
a total of 5195 patients were included in the meta-analysis.
The prevalence of reherniation in ACD and control groups
was 23.2% (95% CI: 18.2% − 28.1%) and 36.4% (95% CI:
28.2% − 44.5%), respectively. The moderator effect of
sample size is significant for pooled data of the ACD group
(p-mod=0.002), but not for the control group (pmod=0.278). After the adjustment with sample size, the
prevalence rates were 13.6% (95% CI: 6.2% − 21.1%) and
29.6% (95% CI: 14.9% − 33.2%) for ACD and control
groups, respectively.
Conclusion: Comparatively to lumbar discectomy alone,
using a Bone-anchored annular closure device following
lumbar discectomy decreased the symptomatic reherniation
rate and post-operative complications, as well as the
necessity for subsequent surgeries.
2.Clinical features and outcomes of ischemic stroke among young Filipino adults.
Kruzette Khloe L. Solijon ; Ena Louis L. Velasco ; Ma. Teresa A. Cañ ; ete ; Gerard Saranza
Acta Medica Philippina 2026;60(4):51-61
BACKGROUND AND OBJECTIVE
The incidence of ischemic stroke typically increases with age; however, recent studies have shown a concerning trend of stroke cases among adults under the age of 45. This neurologic condition is called “Stroke in the Young” (SITY). SITY poses public health concerns due to its long-term consequences on individuals and their families. Despite significant impact, published literature on SITY among Filipinos is scarce. Given the potential differences in genetic background and lifestyle, the clinical characteristics and outcomes of SITY Filipinos may vary considerably from other populations. Therefore, the aim of this study is to describe the clinical features and outcomes of ischemic SITY Filipinos.
METHODSThe study was a two-center, five-year retro- spective cohort design involving 19- to 45-year-old patients admitted between January 1, 2017, and December 31, 2022, diagnosed clinically and radiologically with ischemic stroke for the first time. Medical records were reviewed, including demographic data, stroke symptoms, cardiovascular or non-cardiovascular risk factors, and laboratory results. Ischemic stroke subtypes were categorized into cardioembolic, small artery occlusion, stroke of other determined causes, and stroke of undetermined cause through the Trial of ORG 10172 in Acute Stroke Treatment (TOAST) classification. Functional outcomes on hospital discharge were assessed by the Modified Rankin Scale (mRS). All data were analyzed using descriptive statistics in the Statistical Package for the Social Sciences (SPSS software, version 29).
RESULTSA total of 205 cases of ischemic SITY were chart reviewed. The mean age was 37.30, with a female predominance of 68.3%. The most reported cardiovascular risk factors were obesity (56.6%), hypertension (51.2%), heavy alcohol consumption (36.5%), and diabetes mellitus type 2 (19.5%). Concurrently, the non-cardiovascular risk factors identified were pregnancy, particularly in the postpartum period (4.8%), use of estrogen-containing pills (4.8%), and migraine without aura (4.4%). Based on TOAST classification, small vessel occlusion (42.1%) and large artery atherosclerosis (30.2%) were the most frequent ischemic stroke subtypes of SITY Filipino females. Mostly showed no symptoms of disability (35.1%) on hospital discharge.
CONCLUSIONThis study highlights the difference in the clinical profile of young Filipino adults with ischemic stroke. Contrary to previous studies, ischemic stroke was more predominant among young females. Aside from hypertension, obesity has emerged as the leading cardio- vascular risk factor for ischemic SITY. Moreover, noncardiovascular risk factors, specific to females (pregnancy, use of estrogen-containing pills, and migraine), were also identified in the study. With regards to stroke subtypes, small vessel occlusion and large artery atherosclerosis were frequently seen in young female patients. These f indings suggest a need for gender-specific approaches in the evaluation, management, and prevention of ischemic SITY.
Human ; Young Adult: 19-24 Yrs Old ; Ischemic Stroke
3.Detection of a Serratia sarumanii outbreak in neonatal intensive care units using SaTScan and whole genome sequencing, Philippines, 2022
Giselle V Godin ; Sonia B Sia ; Ferissa B Ablola ; June M Gayeta ; Marietta L Lagrada ; Polle Krystle V Macaranas ; Agnettah M Olorosa ; Janziel Fiel Palarca ; Manuel C Jamoralin, Jr ; June Janice Borlasa ; Ma Fe Laren B Gacho ; Rica Marie B Andico ; Ida Marrione Q Arriola ; Jo-Anne J Lobo ; Melanie B Adolfo ; Jessica Anne A Dumalag ; Joel T Gallardo ; Ma Delta S Aguilar ; Allyne M Aguelo ; Charlotte V Bañ ; es ; Genelynne J Beley
Western Pacific Surveillance and Response 2026;17(1):13-21
Objective: This study aimed to demonstrate the benefits of using SaTScan (Boston, MA, USA), a cluster-detection software programme, and whole genome sequencing to investigate a suspected outbreak of Serratia marcescens infections in a tertiary government hospital in the southern Philippines. The hospital is part of the national Antimicrobial Resistance Surveillance Program’s network of sentinel sites.
Methods: The investigation followed national outbreak investigation protocols. In May 2022, when evaluation of daily hospital laboratory census data revealed an increase in the number of Serratia species in the hospital, an alert was triggered. A concurrent, routine SaTScan analysis of the hospital’s surveillance data by the Antimicrobial Resistance Surveillance Reference Laboratory confirmed a cluster of cases. The Reference Laboratory requested isolates from clinical specimens from the hospital for confirmation of bacterial identification, antimicrobial susceptibility testing and whole genome sequencing.
Results: Six isolates were submitted for genomic analysis, two of which were from the identified cluster. Although originally identified as S. marcescens, five of the isolates were subsequently confirmed as S. sarumanii. Phylogenetic analysis showed that the two isolates from the cluster were closely related and belonged to the same clade, which may suggest a common source. Three antimicrobial resistance genes were identified, but their phenotypic expression was limited, with one isolate exhibiting resistance mechanisms.
Discussion: This study highlighted the utility of SaTScan for the early detection of potential disease outbreaks. The use of whole genome sequencing enhanced the investigation by enabling the analysis of potential transmission pathways at the genetic level, identification of the outbreak source and the detection of novel species.
4.Pulmonary aspergilloma in immunocompromised patients: Expanding treatment Horizons with voriconazole and anidulafungin.
Rollin P. TABUENA ; , Adah Grace M. CATEDRAL ; Lysa Lynn U. LIBANAN ; Ma. Daisy P. TABUENA ; , Christine Q. TRAIN
Philippine Journal of Internal Medicine 2026;64(1):75-80
BACKGROUND
Pulmonary aspergilloma is the most common pulmonary involvement due to Aspergillus. It usually develops in a pre-existing cavity in the lung, most often due to tuberculosis. Hemoptysis occurs secondary to local invasion of the blood vessels lining the cavity. Recurrence of which, is an indication to do surgery, lobectomy in particular. Antifungals like amphotecin B given intravenously and itraconazole given orally, have been the traditional management. But with the emergence of newer antifungals, Echinocandins in particular, which functions to inhibit the β-(1,3) p-glucan synthase, an enzyme necessary for the synthesis of an essential component of the cell wall of fungi, one may need not undergo surgery. The most common antifungal medication for Aspergillus is voriconazole, a second-generation triazole. This case demonstrates the efficient utilization of Voriconazole along with Anidulafungin, which is necessary for the fungal cell wall integrity. For immunocompromised patients with pulmonary aspergilloma, this dual therapy presents a viable substitute for surgical intervention and an efficient treatment approach.
CASEWe present a case of a 54-year-old married patient, who presented with massive hemoptysis four days before consulting a private physician. She had ten episodes of hemoptysis four hours before admission and was rushed to the hospital. The patient had multiple comorbidities, including diabetes, hypertension, and asthma, contributing to an immunocompromised state. She had a history of anti-tuberculosis treatment in 2000, which was discontinued due to an allergic reaction. During her hospital stay, she experienced febrile episodes, and capillary glucose monitoring was beyond acceptable levels, prompting antibiotic initiation. A chest CT scan revealed pulmonary tuberculosis with cicatricial atelectasis of the lingular segment and infected cavitary formation. A bronchoscopy and biopsy of the cavitary lesion were scheduled. Surgical intervention, particularly lobectomy, was not pursued due to multiple factors, including the patient's immunocompromised status, her underlying comorbidities, and the response to antifungal therapy. After eight to 14 fourteen (8-14) hospital days, no episodes of hemoptysis were noted, and the biopsy result revealed fungal colonization consistent with Aspergillus species. The patient was discharged with oral Voriconazole and other maintenance medications. A repeat chest CT scan after five months of antifungal therapy showed regression of the fungus ball.
CONCLUSIONIn this case, pulmonary aspergilloma in an immunocompromised patient was successfully treated with a combination antifungal therapy utilizing anidulafungin and voriconazole. The favorable clinical response to dual antifungal therapy provides a feasible non-surgical alternative to surgical intervention, which has historically been the preferred option for treating recurrent hemoptysis, particularly in high-risk patients. The fungus ball's regression and the fungal infection's resolution support the growing role of more recent antifungal medications in the treatment of complicated pulmonary infections. This case suggests that echinocandins combined with triazole therapy are a viable less invasive treatment option for pulmonary aspergilloma than surgery.
Human ; Female ; Middle Aged: 45-64 Yrs Old ; Anidulafungin ; Immunocompromised Host ; Patients ; Therapeutics ; Voriconazole
5.Infection control practices of dentists in an urbanized city in the Philippines during the COVID-19 pandemic within the period of general community quarantine.
Ma. Bianca B. Barrameda ; Ma. Chrizel Iana A. Madlangbayan ; Joshua Marcel A. Sy ; Melanie Ruth M. Karganilla
Acta Medica Philippina 2026;60(9):80-90
BACKGROUND
The global impact of the COVID-19 pandemic has instigated a profound public health crisis, particularly affecting professionals like dentists who, due to their close interaction with saliva—a potential viral reservoir—and the aerosols generated during specific procedures, face elevated risks of infection. To mitigate this, the Centers for Disease Control and Prevention (CDC) and the Philippine Dental Association (PDA) have established guidelines for averting cross-infection in dental settings.
OBJECTIVEThis study, conducted in an urbanized Metro Manila City, delves into the infection control practices of dentists amid the pandemic.
METHODSDentists from a Metro Manila city dental chapter were invited to participate in an online survey (Google Forms) consisting of participants' demographics, patient triage, engineering, administrative controls, disinfection personal hygiene, personal protective equipment (PPE), and waste management practices. Descriptive statistics, employing frequency distributions and percentages, summarized the dentists' adherence to infection control protocols.
RESULTSOut of forty-nine respondents (49), the majority (92%) provided their teams' orientation on COVID-19 infection control protocols before reopening. Notably, 57% deferred elective procedures and 43% postponed aerosolgenerating procedures (AGPs). Only 39% utilized rubber dam isolation during AGPs. Most respondents reported full implementation of recommended administrative controls during the pandemic, with 92% isolating their treatment areas from other parts of the clinic. Most respondents adopted high-efficiency particulate air (HEPA) filtration units (82%) as one of their clinic’s engineering controls, and an extraoral vacuum machine, accounting for 71% of the respondents. The most common disinfection product used by the participants was alcohol, which was at 94%. Additionally, over 90% adhered to all recommended hand hygiene practices for both dental staff and patients. For the waste management protocols, only 55% of the respondents have their infectious waste collected by third-party Treatment Storage and Disposal (TSD) facilities.
CONCLUSIONThe data shows that with the guidelines posted by both the PDA and CDC, the city’s dental practitioners could still provide services to the community in the safest manner at the time by being updated and following the infection control practices suggested by both organizations. Although some areas could have been improved, such as third-party waste management and the utilization of RT-PCR testing, some of these problems could have been attributed to the lack of availability in their areas.
Human ; Male ; Female ; Adult: 25-44 Yrs Old ; Middle Aged: 45-64 Yrs Old ; Aged: 65-79 Yrs Old ; World Health Organization ; Residence Characteristics ; Quarantine ; Public Health ; Centers For Disease Control And Prevention (u.s.) ; Covid-19 ; Centers For Disease Control And Prevention, U.s.
6.A cultural values model of pakikipag-ugnayan: Examining hiya, pakikisama, and pakikipag-ugnayan among Filipino generation Z nurses.
Angelika B. Avila ; Francis Oliver M. Aldaba ; Maryjoy Loraine T. Almonte ; Enrique B. Alzate ; Trisha B. Amita ; Ma. Andrea M. Avila ; Zg Jungco A. Asoy ; Tristan Jourdan C. Dela Cruz
Acta Medica Philippina 2026;60(9):91-99
OBJECTIVES
This study explored the interplay of three Filipino cultural values—hiya (modesty/self-restraint), pakikisama (conflict-avoidance dimension of social harmony), and pakikipag-ugnayan (professional engagement, characterized by vigor, dedication, and absorption)—among Generation Z nurses in Quezon City. Specifically, it assessed their levels, examined interrelationships through correlation and path analysis, and developed a framework to illustrate their influence on nursing practice. In the Filipino context, hiya encompasses both positive dimensions, such as conscientiousness, moral accountability, and social responsibility, and constraining dimensions, including excessive self-restraint, fear of criticism, and inhibition. Pakikisama, while fostering harmony, may discourage assertiveness and limit open communication. Pakikipag-ugnayan, conceptualized here as engagement, reflects dedication, vigor, and absorption, which are vital for performance, patient safety, and workforce retention.
METHODSA descriptive–correlational design was utilized to assess the relationships among hiya, pakikisama, and pakikipag-ugnayan. Data were gathered through a structured, self-administered questionnaire comprising validated scales for each construct, distributed in online formats to accommodate participants’ availability and work schedules. The purposive sample consisted of 115 Filipino Generation Z nurses engaged in direct patient care in various healthcare facilities in Quezon City. Data analysis involved descriptive statistics to summarize variable scores, Spearman’s rho to examine bivariate correlations, and path analysis to determine the direct and indirect effects among the variables. The results of the path analysis were used to develop a proposed framework illustrating the interplay of these cultural values in nursing practice.
RESULTSPath analysis revealed distinct patterns in the interplay of hiya, pakikisama, and pakikipag-ugnayan among Generation Z nurses in Quezon City. Very high hiya scores (mean = 5.32) reflected both moral accountability and restraint-oriented tendencies. Despite these positive indicators, hiya showed a negative correlation with pakikipag-ugnayan, suggesting that its inhibiting side—marked by fear of criticism and avoidance of mistakes—may overshadow its constructive moral aspects. In contrast, the path analysis identified a moderate positive direct effect between hiya and pakikipag-ugnayan (β = 0.400, pCONCLUSION
Among Generation Z nurses, hiya demonstrates a dual role: while its ethical and conscientious aspects can strengthen pakikipag-ugnayan, its inhibiting side may suppress pakikipag-ugnayan. Pakikisama, operationalized as conflict avoidance and withholding dissent, emerged as a barrier to pakikipag-ugnayan by discouraging open communication. These findings informed the development of the Hiya–Pakikisama– Pakikipag-ugnayan Cultural Dynamics Framework, which illustrates how cultural values can simultaneously enable and constrain professional engagement. The framework has potential applications in nursing education and organizational practice, particularly in designing reflective learning, mentorship, and communication strategies that balance cultural sensitivity with assertiveness. Further validation across generations and healthcare settings is recommended to refine its applicability.
Human ; Weights And Measures ; Sensitivity And Specificity ; Retention (psychology) ; Education, Nursing ; Social Responsibility ; Appointments And Schedules ; Conflict (psychology)
7.COVID-19 vaccine literacy, confidence, and vaccination coverage in two Geographically Isolated and Disadvantaged Areas (GIDAs) in Floridablanca, Pampanga: A descriptive cross-sectional study
Dennise Grace C. Lazam ; Juean Joloue D. Lama ; Azizzah M. Lao ; Mark Brandon G. Lao ; Jerenlyn A. Laxamana ; Kayla Gabrielle C. Lecciones ; Ma. Hannah Sofia R. Magtibay ; Juan Miguel M. Mañ ; ago ; Angelica Mae G. Manalo ; Nicole Ira L. Manere ; Charles Kevin L. Rivera, MD ; Maria Peñ ; afrancia L. Adversario, MD, MSPH ; Maria Milagros U. Magat, MD, MEM
Health Sciences Journal 2026;15(1):23-35
Introduction:
Effective vaccination campaigns have been instrumental in reducing COVID-19 transmission and severe disease outcomes. Despite efforts to improve vaccine accessibility, vaccine literacy and confidence remain important determinants of vaccine uptake. Rural and geographically isolated communities often experience barriers to healthcare access that may affect vaccination coverage. This study aimed to assess COVID-19 vaccination coverage, vaccine literacy, and vaccine confidence among residents of selected Geographically Isolated and Disadvantaged Areas (GIDAs) in Floridablanca, Pampanga.
Methods:
A descriptive cross-sectional study was conducted among 211 residents of Barangays San Ramon and Nabuclod. Data were collected through face-to-face interviews using a translated and pretested questionnaire on vaccine literacy and vaccine confidence. Vaccination records obtained from the Rural Health Unit were reviewed to determine COVID-19 vaccination coverage. Descriptive statistics, including
frequencies and percentages, were used to summarize the data.
Results:
The majority of respondents demonstrated an average level of vaccine literacy (75.8%), while 17.5% exhibited high vaccine literacy. Most respondents also demonstrated positive to very positive vaccine confidence (71.6%). Among the eligible population, 80.5% had completed the primary COVID-19 vaccination series, whereas 19.5% remained unvaccinated. Among those who completed the primary series, only 24.2% had received at least one booster dose.
Conclusion
Residents of the selected GIDAs generally demonstrated average vaccine literacy, positive vaccine confidence, and relatively high primary COVID-19 vaccination coverage. However, low booster uptake and the persistence of unvaccinated individuals highlight the need for sustained health education, improved healthcare accessibility, and targeted community-based interventions. These findings underscore the importance of strengthening vaccine literacy and confidence to support future immunization programs in geographically isolated communities.
COVID-19
;
Rural Health
;
Vaccination coverage
8.Method validation of an ultra-high-performance liquid chromatography (UHPLC) for the bioequivalence study of rifampicin.
Allen Jasper D. DIÑO ; Essel N. TOLOSA ; Ailyn M. YABES ; Noel S. QUIMING ; Leonila A. ESTOLE-CASANOVA ; Ma. Stephanie Fay S. CAGAYAN ; Cecilia A. JIMENO
Acta Medica Philippina 2025;59(20):54-59
OBJECTIVES
In response to the need for a simple and fast way of ensuring that generic drugs especially those that contain rifampicin are bioequivalent with reference drugs, this study validated an ultra-high-performance liquid chromatography (UHPLC) method of quantifying rifampicin in human plasma. The study also validated the method's selectivity, linearity, sensitivity, accuracy, precision, and the absence of a carry-over effect adhering to the Philippine Food and Drug Administration guidelines.
METHODSPlasma samples were prepared via protein precipitation using methanol containing ascorbic acid. Three microliters (3 uL) of the prepared samples were then analyzed in a Waters Acquity H-Class UPLC® system coupled to a tunable ultraviolet (TUV) detector with an attached UPLC® BEH C-18 column using a developed and optimized method. Briefly, the column temperature was set to 40°C and the sample temperature was set to 10°C. Elution was done using a linear gradient flow of a water-acetonitrile mixture that started with 45% acetonitrile increasing to 60% acetonitrile at 0.5 minutes and back to 45% acetonitrile at 3 minutes and having a constant flow rate of 0.5 mL/min. Detection was done at 340 nm. Method validation was performed following the ICH guidelines for Bioanalytical Method Validation, the same guidelines referenced by the ASEAN Guideline for Harmonisation of Standards and the Philippine Food and Drug Administration (FDA).
RESULTSThe method had an analysis time of 3 minutes wherein rifampicin eluted at 1.4 minutes while the internal standard, rifapentine (IS) eluted at 1.7 minutes. Since no co-eluting endogenous materials were observed for the rifampicin and the internal standard, the method was confirmed to be selective. Its linearity over the range of 2 ug/mL to 25 ug/mL has been validated where it has a limit of detection (LOD) and limit of quantification (LOQ) values of 0.64 ug/mL and 1.94 ug/mL, respectively. The interday and intraday precision, reported as % coefficient of variance (%CV), and interday and intraday accuracy, reported as %error all within the limits of ±20% for the LLOQ and ±15% for the rest indicating its reliability and reproducibility. Lastly, due to the nature of the injection of the sample into the system, wherein a blank immediately follows the highest concentration standard, the method has been cleared of a carry-over effect.
CONCLUSIONThe study successfully validated a UHPLC method of quantifying rifampicin in human plasma. Due to the sample processing method used and the chromatographic conditions set, the method can prepare and analyze samples in a simple yet fast, sensitive, reliable, and reproducible manner. The method can be applied in bioavailability and bioequivalence studies of rifampicin.
Human ; Rifampin ; Rifampicin ; Bioequivalence ; Therapeutic Equivalency
9.Accuracy of dermoscopy as a point-of-care tool for distal subungual onychomycosis at a tertiary hospital
Gemmy P. David ; Ma. Franchesca S. Quinio-Calayag ; Maria Angela M. Lavadia ; Athena Emmanuelle P. Mallari ; Arunee H. Siripunvarapon
Journal of the Philippine Dermatological Society 2025;34(2):42-48
CONTEXT
Accurate diagnosis of onychomycosis is important since misdiagnosis can lead to inappropriate therapy, delayed diagnosis of other nail conditions, and antifungal resistance. Dermoscopy is an emerging diagnostic tool, particularly valuable in the resource-poor settings.
AIMSThe study aimed to evaluate the accuracy of dermoscopy as a point-of-care tool in diagnosing distal subungual onychomycosis (DSO) at a tertiary hospital.
SETTINGS AND DESIGNAn observational, prospective, and cross-sectional study was conducted among 22 clinically diagnosed DSO patients using convenience sampling at a tertiary hospital from November 2019 to September 2021.
SUBJECTS AND METHODSParticipants underwent gross nail examination, dermoscopy, potassium hydroxide (KOH), and periodic acid-Schiff (PAS) examinations.
STATISTICAL ANALYSIS USEDSensitivity, specificity, predictive value, and likelihood ratios (LRs) of the dermoscopic patterns were obtained using KOH and PAS results as the reference standard.
RESULTSFifty-one nails were submitted but 2 were lost during the processing, leaving 49 nails for analysis. The most common pattern was jagged edge with spikes (65.3%). Individual patterns yielded only low-to-moderate sensitivity (32.4%–73.5%). However, combining all patterns increased sensitivity to 91.2% (95% confidence interval: 76.3–98.1). Ruin appearance showed the highest specificity (100%) and positive predictive value (100%). LRs were not significant enough to draw the conclusions.
CONCLUSIONSDermoscopy may serve as an on-site, adjunct tool in the diagnosis of DSO, especially when the combination of patterns is considered. Ruin appearance maybe particularly useful in ruling in DSO. However, confirmation using mycological and histopathological tests remains essential.
Human ; Dermoscopy ; Onychomycosis
10.Determination of the minimal erythema dose to excimer light in Filipino skin: A prospective interventional and cross-sectional study in a tertiary government hospital in the Philippines
Ma. Celina Cephyr C. Gonzalez ; Charlotte Giselle L. Ty ; Vanessa M. Carpio ; Lily Lyralin L. Tumalad ; Maria Rosa Noliza F. Encarnacion
Journal of the Philippine Dermatological Society 2025;34(2):68-73
INTRODUCTION
Excimer light is a targeted phototherapy that uses 308-nanometer wavelength ultraviolet radiation to treat photoresponsive dermatoses such as psoriasis, vitiligo, and alopecia areata. Ideally, the minimal erythema dose (MED) should be determined to guide the initial treatment dose. However, due to convenience, estimation based on skin phototype is more commonly used.
OBJECTIVESTo determine the MED to excimer light in adult Filipinos using a visual erythema scale.
MATERIALS AND METHODSA prospective interventional, cross-sectional study was conducted among adult Filipinos in a tertiary government hospital in the Philippines. Participants underwent phototesting with six incremental doses of excimer light. MED was defined as the lowest dose that produced uniform, well-defined erythema over the exposed area. Descriptive statistics summarized clinicodemographic data, MED, and adverse events. Fisher’s exact test assessed associations between MED, sex, and skin type.
RESULTSA total of 149 adult Filipinos with Fitzpatrick skin types III to V were enrolled. MED values ranged from 150 to 400 mJ/cm2, with 200 mJ/cm² being the median and mode (33.56%). No association was found between MED and skin phototype. Sex correlated with MED, with females having higher MEDs than males.
CONCLUSIONSThe median MED was 200 mJ/cm2 in Filipino patients with skin types III to V. This may serve as the initial starting dose for phototherapy (except in vitiliginous skin). With the variation in the MED within the population, MED determination is still the ideal method to identify the most appropriate initial treatment dose.
Human ; Phototherapy ; Ultraviolet Therapy


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