1. Dermal metastasis from nasopharyngeal carcinoma: A rare form of metastasis
Johanna Patricia A. Cañ ; al
Philippine Journal of Otolaryngology Head and Neck Surgery 2011;26(1):42-45
Objective:
To report a rare form of metastasis from a primary nasopharyngeal carcinoma, a creeping form of dermal metastasis.
Methods:
Design: Case Report
Setting: Tertiary Public University Hospital
Patient: One
Results:
A 47-year-old male referred for radiotherapy after having undergone a selective neck dissection for multiple cervical lymphadenopathy with histopathologic diagnosis of undifferentiated carcinoma and no known primary underwent a four-quadrant nasopharyngeal biopsy which confirmed the presence of nasopharyngeal carcinoma. Subsequent radiotherapy resolved the primary mass , and a new posterior cervical lymph node that appeared five months after completion of radiotherapy also resolved with additional radiotherapy. He was asymptomatic for two years until he noted thickening of the skin in his left supraclavicular area. A Computed Tomography (CT) scan showed deep cervical adenopathy and skin thickening, and biopsy confirmed dermal metastatic carcinoma. Two courses of radiotherapy to the affected skin and left axilla where a lymph node had developed resulted in resolution and he was referred for chemotherapy.
Conclusion
Dermal metastasis from nasopharyngeal carcinoma is rare and does not present with pathognomonic symptomatology. It may therefore be confused for a benign side effect (dermatitis), not the malignant manifestation that forebodes a bad prognosis. Patients with dermal metastasis should receive treatment, and radiotherapy may play a significant part. Chemotherapy may also play a role in its management.
Nasopharyngeal Carcinoma
2.Radiation therapy amidst the COVID-19 pandemic in the Philippines: When guidelines are not enough
Aveline Marie D. Ylanan ; Johanna Patricia A. Cañ ; al ; Jaffar C. Pineda ; Daphne Jo S. Valmonte
Acta Medica Philippina 2023;57(1):34-40
Background:
To respond to the pandemic, many societies, including the American Society for Radiation Therapy
(ASTRO), the United Kingdom’s National Institute for Health and Care Excellence (NICE), and the Philippine Radiation Oncology Society (PROS), recommended guidelines to allow for continued safe delivery of oncologic services. Yet, the delivery of radiotherapy during the COVID-19 pandemic remains a challenge.
Objective:
To describe the situation of radiotherapy delivery in Metro Manila (NCR) during the COVID-19-related
quarantine. Specifically, the objectives were to determine: (1) how the radiotherapy providers implemented the recommended changes, (2) if these implemented changes allowed the hospitals to operate with pre-COVID capacities, and (3) the causative factors of treatment interruptions if these were present. Additionally, in the face of treatment interruptions, the authors sought to put forth recommendations to decrease treatment interruptions.
Methods:
Investigators gathered data on the prevailing situation of RT services in their respective institutions during the strictest period of quarantine — Enhanced Community Quarantine (ECQ). Patients aged 18-70 years old who missed at least one fraction during the ECQ from March 16 – April 15, 2020, were invited to participate in a phone survey to determine factors contributing to treatment interruptions.
Results:
All the institutions implemented global recommendations to adapt to the pandemic, including infection
control measures, telemedicine, and modification of RT plans. Despite this, most institutions had increased treatment interruptions during ECQ. The percentage of patients with interruptions was also much higher during the ECQ (66.37%) than during the pre-COVID month (30.56%). Among 142 patients unable to continue treatment, there were no significant differences in demographic variable and oncologic profile rates. The majority were more worried about getting COVID-19 than missing RT. The most common factor for treatment interruptions was transportation, followed by fear of getting COVID-19.
Conclusion
Compliance with global recommendations is not enough to ensure that the patients who require
radiotherapy will receive it. Based on institutional and patient results, the causative factors of interruptions included suspension of services, lack of transportation, and anxiety of patients and staff. Especially in low-resource settings, recommendations are to use available resources as efficiently as possible by having an organized referral system, providing transportation or nearby accommodation for patients and staff, and communicating effectively to reassure patients that radiotherapy can be continued safely.
radiotherapy
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radiation therapy
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radiation oncology
3.Characteristics and factors associated with mortality of 200 COVID-19 patients at a Philippine COVID-19 tertiary referral center
Maria Sonia S. Salamat ; Anna Flor G. Malundo ; Cybele Lara R. Abad ; Joanne Carmela M. Sandejas ; Johanna Patricia A. Cañ ; al ; Julian A. Santos ; Marissa M. Alejandria ; Jose Eladio G. Planta ; Jonnel B. Poblete
Acta Medica Philippina 2021;55(2):173-182
Objectives: To describe the clinical profile and factors associated with mortality among the first 200 patients confirmed to have COVID-19 infection admitted in the University of the Philippines – Philippine General Hospital (UP-PGH)
Methodology: We conducted a retrospective review of adult patients with confirmed COVID-19 infection admitted in PGH, a designated COVID-19 referral center. Demographic, clinical data, and clinical outcomes were extracted from medical records. Frequencies and distributions of various clinical characteristics were described, and factors associated with mortality were investigated.
Results: Of the 200 patients in our cohort, majority were male (55.5%), and more than half (58%) were over 60 years old. Underlying co-morbid illnesses (67.5%) included hypertension (49.5%), diabetes mellitus (26.5%), and cardiovascular disease (20.5%). Most frequent presenting symptoms were cough (69.0%), fever (58.5%), or shortness of breath (53.0%). Most patients presented with mild (n=41, 20.5%) to moderate illness (n=99, 49.5%) and only 60 were considered severely (n=32, 16.0%) or critically ill (n=28, 14.0%). Many (61%) received empiric antibiotics, while 44.5% received either repurposed drugs or investigational therapies for COVID-19. Bacterial co-infection was documented in 11%, with Klebsiella pneumoniae commonly isolated. In-hospital mortality was 17.5%, which was highest for critical COVID-19 (71.4%). Mortality was observed to be higher among patients age 60 and above, those requiring oxygen, ventilatory support and ICU admission, and among those who developed acute kidney injury, acute stroke, sepsis, and nosocomial pneumonia.
Conclusion: Our study confirms that COVID-19 affects males, older individuals and those with underlying co-morbid conditions. Empiric antimicrobial treatment was given for majority of patients, despite documentation of bacterial infection in only 11%. K. pneumoniae was commonly isolated, reflecting local epidemiology. Mortality rate during this early period of the pandemic was high and comparable to other institutions. Factors associated with mortality were related to critical COVID-19 and are similar to other studies.
COVID-19
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Philippines
4.Association of treatment delays with survival for patients with head and neck cancer undergoing surgery and radiotherapy at the Philippine General Hospital
Nicole D. Sacayan-Quitay ; Sean Patrick C. De Guzman ; Johanna Patricia A. Cañ ; al ; Cesar Vincent L. Villafuerte, III
Philippine Journal of Otolaryngology Head and Neck Surgery 2024;39(2):7-11
Objective:
To identify in what phases in the treatment of head and neck cancer do delays happen at a tertiary hospital and to determine the association between the length of treatment delays and the oncologic outcomes (disease-free survival and overall survival) for patients with head and neck cancer.
:
Methods
Design:
Retrospective Cohort Study
Setting:
Tertiary National University Hospital
Participants:
Sixty-eight (68) patients who had surgery and adjuvant radiotherapy for invasive head and neck cancer at the Philippine General Hospital during the 5-year period of January 2014 to December 2019 were included in the initial consideration. Only 15 had survival data and were thus eligible for inclusion in this study.
Results:
The median treatment package time for head and neck cancers in our institution was 27.6 weeks or 193 days. The treatment package time statistically correlated with both overall survival, F(1,13)=12.952, p <0.005, R2=0.499, and disease-free survival, F(1-13)=12.823, p <0.005, R2= 0.497. However, the independent effects of other predictors such as time interval between first consult to histopathologic diagnosis, diagnosis to surgery, and surgery to post-operative radiotherapy, showed no statistically significant association with overall survival and disease free survival.
Conclusion
All study patients experienced treatment delays from diagnosis to surgery, and surgery to adjuvant radiation therapy, and in their total treatment package time. The positive correlation among treatment package time, and disease-free and overall survival in this study must be further investigated in order to elucidate the true effect of delays across time intervals in the treatment of head and neck cancer in the Philippine General Hospital. Every effort should be made towards timely management of these patients.
Head and Neck Neoplasms
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Radiotherapy
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Survival Rate
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Treatment Outcome
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Time-to-Treatment
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Surgery
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Disease-Free Survival
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Delayed Diagnosis
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Retrospective Studies
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Postoperative Care