1.Benign tumors of the mandible and maxilla: The Philippine General Hospital experience (1993-2005).
Dofitas Rodney B ; Tabangay-Lim Ida MARIE ; Fajardo Arlene T
Philippine Journal of Surgical Specialties 2009;64(1):16-22
OBJECTIVE: This study seeks to describe the relative frequency of benign tumors in the mandible and maxilla, the operations done to manage these tumors at the Philippine General Hospital and compare it to previous reports.
METHODOLOGY: The histopathology records of patients with tumors affecting the mandible and maxilla who underwent biopsy or definitive surgery between January 1993 and December 2005 were included in this study and analyzed.
RESULTS: Out of 1049 cases of tumors of the mandible and maxilla, 566 were benign tumors. Patients had a mean age of 30.77 + 15.70 (Range of 4 mos to 83 years). There is a predilection for males (1.4:1), and the mandible (1.9:1). Ameloblastoma is the most common tumor encountered (266 out of 566 or 47.00 percent). Resection is the most common operation done (380 out of 575 or 66.09 percent). Nine operations were done for tumor recurrence (9 out of 575 or 1.57 percent). Ameloblastoma is the only histologic type of tumor that resulted in recurrence.
CONCLUSION: Benign tumors are more common in the mandible and maxilla. Odontogenic tumor, specifically ameloblastoma, is the most common histologic type. If has specific predilections as to site, age, and gender. In this study, resection is the most common procedure done for this tumor.
Human ; Ameloblastoma ; Maxilla ; Odontogenic Tumors ; Mandible
2.Male breast cancer: The Philippine General Hospital experience.
Kristine A. Paguirigan ; Mark Richard C. Kho ; Gemma Leonora B. Uy ; Rodney B. Dofitas
Philippine Journal of Surgical Specialties 2021;76(2):35-40
RATIONALE/OBJECTIVE:
Breast cancer among males is often diagnosed
at a later age and at an advanced stage. The study aimed to present
the epidemiology, associated risk factors, clinical and pathological
characteristics, treatment patterns and outcomes of male breast cancer
patients treated at the Philippine General Hospital from January
2008- December 2017. Information from this study can provide for
better understanding of the disease and basis for creating guidelines
toward better outcomes.
METHODS:
Retrospective study of medical records involving male
breast cancer patients who underwent surgery and treatment at the
Philippine General Hospital from January 2008- December 2017.
RESULTS:
Male breast cancer accounted for 15 (0.26%) of 5,777 resected
breast specimens for breast cancer patients with a 1:384 male to female
ratio. The mean age of presentation was 60 years. The most common
presentation was a retro-areolar mass, with 33% of patients presenting
post-excision. Sixty-seven percent were at Stage II and 20% at Stage
III. About 94% of patients have invasive ductal carcinoma, while
the only other histology is papillary carcinoma at 13%. Majority of
those tested were both estrogen receptor and progesterone receptor
(ER/PR) positive (33% versus 1 %), and Her2neu negative. All
patients underwent modified radical mastectomy. Only two patients
were documented to have received adjuvant chemotherapy while
one patient received neoadjuvant chemotherapy.
CONCLUSION
Breast cancer remains to be a rare disease among males,
is often diagnosed at a later age and at an advanced stage. Because of
its rarity, awareness is necessary not only in the community but also
among healthcare providers to identify and treat the problem earlier.
Further investigation and prospective studies are recommended.
radiotherapy
;
recurrence
;
survival
3.Breast cancer in the young: A 10-year review of the diagnosis, treatment and outcomes at the Philippine General Hospital.
Sittie Aneza Camille A. Maglangit ; Arjel D. Ramirez ; Mark Richard C. Kho ; Rodney B. Dofitas
Philippine Journal of Surgical Specialties 2021;76(2):41-47
RATIONALE:
Breast cancer is the most prevalent cancer in the world.
It is usually diagnosed in women 50 years old and older, but is
also found in younger women. Its occurrence in young women
led to questions with regards issues on its tumor biology, survival
and fertility. There is insufficient local data to formulate treatment
options relevant to this age group. This study reviews the data on
breast cancer in young female patients seen in a tertiary institution.
METHODS:
This is a descriptive study involving a review of medical
records of young female breast cancer patients (<35 years of age),
seen at the Philippine General Hospital - Breast Care Center from
January 2008 to December 2017.
RESULTS:
A total of 119 patients were included in the study. Of these
young female patients, 29.4% presented with locally advanced
disease (Stage IIIB) correlating with a high number of patients who
underwent neoadjuvant chemotherapy (38.7%) and modified radical
mastectomies with primary closure (62.18%).
CONCLUSION
Breast cancer in young females should be aggressively
investigated as it commonly presents in an advanced stage.
4.Multiple strategies to avoid life-threatening blood loss during intralesional resection of a giant Plexiform Neurofibroma: A case report
Ma. Katrina B. Guillermo ; Rodney B. Dofitas
Philippine Journal of Surgical Specialties 2022;77(2):51-65
Giant plexiform neurofibroma (PNs) are benign peripheral nerve sheath tumors known to contain multiple fascicles of nerve and numerous friable vascular components. Most consult due to significant disfigurement and functional deficit. Though surgery is the current standard of therapy, there is high reservation in pushing through with resection in most cases. The reservation stems from the recognized
difficulty in controlling intraoperative life-threatening hemorrhage. A 25-year-old female came in our institution due to multiple debilitating giant PNs on her scalp, back, neck, shoulder, and chest. She opted
for debulking surgery despite possible complications and recurrence. Multiple modalities used to prevent massive bleeding in this case included preoperative arterial embolization, energy sealing device, cutting linear stapler, and interlocking retention sutures. The aim of this case report was to discuss the utility of each of these techniques, the advantages and disadvantages of each approach based on our
experience.
Neurofibroma, Plexiform
;
Hemorrhage
5.National Surgical and Anesthesia Human Health Resource Study of 2020
Rodney B. Dofitas ; Joy Grace G. Jerusalem
Philippine Journal of Surgical Specialties 2024;79(1):1-19
Rationale:
The provision of surgical services in the Philippines is an
essential component of our healthcare system. Despite an increasing
number of accredited training programs, geographic maldistribution
remains a key factor in access to surgical care in the country. This
study aimed to describe the geographic distribution of surgeons
and anesthesiologists in the Philippines and factors that affect their
practice to provide insights into the country's surgical capabilities.
Additionally, demographic factors such as workforce density,
professional mobility, and economic indicators were explored. The
ultimate goal was to establish an updated database for continuous
monitoring of surgical manpower, facilitated through the collaboration
of the Philippine College of Surgeons (PCS) and the Philippine
Society of Anesthesiologists (PSA).
Methods:
This cross-sectional study, sponsored by the World Surgical
Foundation (WSF) and the Philippine College of Surgeons Foundation
(PCSF), received exemption from review by the Single Joint Research
Ethics Board (SJREB) of the Department of Health. An online
survey was distributed to surgeons and anesthesiologists across the
Philippines from July 1 to December 31, 2020. Active practitioners
in relevant specialties were eligible, excluding retirees. Procedures
adhered to ICH-GCP principles, National Ethical Guidelines, and the
Data Privacy Act. Additional data, sourced from various outlets, was
consolidated, verified and subsequently entered into an electronic
data sheet (Google Sheets, Google LLC, Palo Alto CA) to extract
descriptive statistics of the surgical and anesthesia workforce at the
national and regional levels.
Results:
Analysis of the data indicates male dominance with a
noticeable trend of increasing female participation in surgical
training programs, while anesthesiologist gender distribution showed
a female preponderance. Maldistribution in manpower persists,
influenced by factors such as training programs, medical education,
and the availability of secondary and tertiary hospitals, and other
socio-economic conditions in the country. The study reveals regional
variations in the distribution of surgeons and anesthesiologists in the
Philippines, with a notable concentration in urban centers, the highest
being in Luzon, particularly in the National Capital Region (NCR).
Conclusion
The study highlights gender disparities and regional
variations in the distribution of surgeons and anesthesiologists in the
Philippines, with a significant concentration in Luzon, particularly in the National Capital Region (NCR). Disparities in subspecialty
distribution are exacerbated by healthcare education discrepancies
and inadequate healthcare infrastructure especially in rural areas.
Addressing these challenges requires focused efforts on expanding
training programs, recruiting specialists, and ensuring equitable
access to surgical care nationwide. Establishing a comprehensive
surgical workforce database is essential for informed policymaking,
monitoring workforce distribution, and assess service quality to
enhance access to surgical services.
Workforce
;
Health Resources
;
General Surgery
;
Anesthesiology
6.Clinicopathologic profile of patients with maxillofacial tumors in a tertiary level government institution.
Carlos Miguel P. Perez ; Efren Gerald S. Soliman ; Rodney B. Dofitas ; Jeannette Marie S. Matsuo
Philippine Journal of Surgical Specialties 2021;76(2):56-62
RATIONALE:
Bone tumors of the head and neck region are rare. Their
occurrence, biologic behavior, and management can cause significant
personal, social, behavioral and economic ramifications. The aim of
this study was to describe the clinicopathologic profile of patients
with maxillofacial tumors in a tertiary level government hospital.
METHODS:
This was a retrospective, descriptive study over a five-year
period (January 2013 to December 2018).
RESULTS:
A total of 256 patients was included in the study, with
females accounting for 53.5% and males for 46.5%. The mean age
of presentation was 37.4 years with a range of 18-80 years. The
mean age of patients with benign tumors was 36.1 years, while
those with malignant tumors was higher at 61.8 years. Majority of
the tumors involved the mandible. Ameloblastoma and dentigerous
cysts were the most prevalent benign odontogenic tumors while
squamous cell cancer was the most common malignancy. Radical
surgery with composite reconstruction was done in malignant cases
to ensure adequate pathologic margins, while a more conservative
tissue-sparing approach was done for benign cases.
CONCLUSION
Management of maxillofacial tumors remains a challenge
because of its relative anatomic location and locally-advanced state
upon detection. Identifying these tumors at an early stage ensures
adequate resection with minimal functional and aesthetic loss. The
low morbidity and mortality rates reported in this study emphasizes
the role of the multidisciplinary team approach, surgical experience
and comprehensive perioperative care in the management of bone
tumors in the head and neck.
7.Filipino translation and validation of the University of Washington – Quality of Life Questionnaire (Version 4) for patients with head and neck tumors in the Philippine General Hospital
Christelle Anne M. Almanon ; Rodney B. Dofitas ; Marie Carmela M. Lapitan ; Eljohn C. Yee ; Jennifer Angela B. Almelor-Alzaga ; Adovich S. Rivera
Acta Medica Philippina 2023;57(11):25-33
Objectives:
This study aims to develop a Filipino translation of the University of Washington Quality of Life Questionnaire (UW-QOL) version 4, and determine its internal consistency and test-retest reliability.
Methods:
This was a cross sectional mixed methods study comprised of two parts. The first part consisted of Filipino translation of the UW-QOL version 4 questionnaire. The second part validated the internal consistency and testretest reliability through statistical analysis.
Results:
The Cronbach’s coefficient was high (0.88) which denotes good internal consistency. Pearson’s correlation coefficient was obtained to determine the test-retest reliability of the translated questionnaire. A p value of <0.05 indicates that the questionnaire has good test-retest reliability. The p value was high in most of the items of the questionnaire.
Conclusion
The internal consistency of the translated questionnaire is high and comparable to other translations of the same questionnaire. The test-retest reliability is low owing to the interventions done between the test and retest.
Quality of Life
;
Surveys and Questionnaires
8.Filipino translation and validation of the University of Washington - Quality of Life Questionnaire (Version 4) for patients with head and neck tumors in the Philippine General Hospital
Christelle Anne M. Almanon ; Rodney B. Dofitas ; Marie Carmela M. Lapitan ; Eljohn C. Yee ; Jennifer Angela B. Almelor-Alzaga ; Adovich S. Rivera
Acta Medica Philippina 2020;54(Online):1-9
Objectives:
This study aims to develop a Filipino translation of the University of Washington Quality of Life Questionnaire (UW-QOL) version 4, and determine its internal consistency and test-retest reliability.
Methods:
This was a cross sectional mixed methods study comprised of two parts. The first part consisted of Filipino translation of the UW-QOL version 4 questionnaire. The second part validated the internal consistency and testretest reliability through statistical analysis.
Results:
The Cronbach’s coefficient was high (0.88) which denotes good internal consistency. Pearson’s correlation coefficient was obtained to determine the test-retest reliability of the translated questionnaire. A p value of <0.05 indicates that the questionnaire has good test-retest reliability. The p value was high in most of the items of the questionnaire.
Conclusion
The internal consistency of the translated questionnaire is high and comparable to other translations of the same questionnaire. The test-retest reliability is low owing to the interventions done between the test and retest.
Quality of Life
;
Surveys and Questionnaires