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Candelo, Estephanía

https://orcid.org/0000-0003-3002-7071

Mayo Clinic

University of Washington

Citations 32

Exploring Access to Care in Zimbabwe Using the 3‐Delay Model
Green, Katerina J. , Matinhira, Naboth, Vallecillo, Tissiana , Arya, Priya , Katiro, Munyaradzi , Nyamurowa, Tafadzwa , Douse, Dontre’ M. , Wiedermann, Joshua P. , Vallecillo, Tissiana , Arya, Priya , Candelo, Estephanía , Green, Katerina , Jain, Amiti

Laryngoscope Investigative Otolaryngology | February 14, 2025 | Volume: 10 | Issue: 1 | Pages: No page available

10.1002/lio2.70091 Get It

ABSTRACTObjective(s)We aim to identify the diversity of barriers to care for otolaryngology‐head and neck surgery patients in Harare, Zimbabwe.MethodsInterviews were conducted at four general otolaryngology clinics in Harare in October 2022.The patient population included children and adults presenting to either government or private clinics. Via interpreter, six standardized questions were discussed with each patient. Survey responses were used to categorize patients into one or more of three types of delays: (1) deciding to seek care, (2) reaching the appropriate healthcare facility, and (3) receiving adequate care after reaching that facility.ResultsForty‐six patients participated in this survey. The average time from problem presentation to treatment in this population was 16.3 months. Twenty‐six percent of patients experienced more than one type of delay. The most common type of delay was Type 3 (67%). Many of these patients reached appropriate facilities but could not receive timely treatment due to lengthy wait times. Type 1 delays affected 35% of patients. Notable causes were fear of doctors, preference for traditional healing, or ignorance to a treatable problem. Type 2 delays were also reported in 37%, commonly due to long distance and time to travel and insufficient finances for these journeys.ConclusionsENT patients in Zimbabwe experience a myriad of delays to receiving appropriate care. Systemic issues, including backlogged surgical lists, convoluted referral patterns, and poor transportation infrastructure, are significant contributors to patient delays. The 3‐delay model is useful for identifying barriers to care for future efforts to improve patient access to safe and affordable surgical care.Level of EvidenceLevel VI.
Examining the Obstacles to Timely Otolaryngology Care in Ethiopia and Zimbabwe: A Comparative Analysis
Eyassu, Daniel G. , Candelo, Estephanía , Green, Katerina J. , Wallerius, Katherine P. , Asgedom, Brhanu H. , Wiedermann, Joshua P. , Gomez, Estephania Candelo , Green, Katerina

OTO Open | February 7, 2025 | Volume: 9 | Issue: 1 | Pages: No page available

10.1002/oto2.70078 Get It

AbstractThis study compares delays in otolaryngologic care between patients in Mekelle, Ethiopia and Harare, Zimbabwe using the Three Delays model. Patient surveys conducted among 46 patients in Zimbabwe during October 2022 and 105 patients in Ethiopia during June 2023 revealed a significantly higher prevalence of delays in seeking and reaching care in Ethiopia. This was in the aftermath of the Tigray War, which damaged the region's health care infrastructure and diminished the trust of patients. In Zimbabwe, there was poor awareness among patients and nonotolaryngologist providers of otolaryngology disease and care capacity leading to delays in seeking and reaching care. Patients in both countries faced delays in receiving appropriate care due to resource limitations, with Ethiopia's constraints worsened by the recent war and Zimbabwe's by consistent health care underfunding. The longest delays were observed in head and neck oncology care. These findings provide a foundation for understanding otolaryngologic care delays in these low‐ and middle‐income countries.
Survival, Tumor Control, and Safety Outcomes of Proton Therapy in Sinonasal Cancer Population: A Systematic Review and Meta‐Analysis
Vasudevan, Srivatsa Surya , Sharifi, Ahmad Reza , Patel, Samir H. , Holtzman, Adam L. , Mohammadi, Homan , Donaldson, Angela M. , Candelo, Estephanía , Sharifi, Alireza , Holtzman, Adam , Daniel, J. , Routman, David M.

Head & Neck | January 24, 2025 | Volume: 47 | Issue: 4 | Pages: 1291-1305

10.1002/hed.28082 Get It

ABSTRACTBackgroundIn sinonasal cancer (SNC), treatment with proton therapy (PT) provides excellent local control, especially after gross total resection. Because of the heterogeneity and rarity of this disease site, a comprehensive assessment of toxicity, survival, and control rates is lacking. Our primary objective was to assess the toxicity outcomes of PT in SNC patients, with a secondary aim of assessing survival and tumor control after PT.MethodsPubMed, Embase, EBSCO, Scopus, Science Direct, Web of Science, Ovid, Proquest, and Cochrane Library were searched from inception to August 2024 reporting PT acute and late toxicity, survival, and tumor control outcomes in SNC patients. A random‐effect meta‐analysis was used to assess the pooled safety, survival, and tumor control outcomes. The primary analysis was to report acute and late toxicity. The secondary aims included overall survival (OS), disease‐free survival (DFS), local control (LC), regional control (RC), and distant metastasis control (DMC) rate.ResultsFourteen studies were included for qualitative analysis. We pooled data from 756 patients who received PT for SNC. Among acute toxicity (AT), there was a 31.9% occurrence rate of grade ≥ 3 events, whereas within late toxicity (LT), grade ≥ 3 events occurred at a rate of 35.3%. Most LT (62.1%) were classified as grade 2, with the most frequent being ocular (24.8%) or neurological (18.4%) toxicities. The most common grade ≥ 3 toxicities were mucositis (15.3%) in AT and ocular toxicity (9.6%) in LT. The pooled 5‐year OS, DFS, LC, RC, and DMC were 36.8%, 34.2%, 35.6%, 28.6%, and 54.3%, respectively.ConclusionOur analysis demonstrates that PT‐treated SNC patients experience acceptable rates of acute and LT consistent with other published outcomes with highly conformal radiation techniques. PT demonstrates favorable OS and DFS. Further prospective and comparative effectiveness research is needed to better quantify the magnitude of the benefit of PT or other forms of radiation modalities.
Insights into laryngeal Castleman disease: A comprehensive scoping review with a case study focus
Weiss, Natalie , Bridges, Margaret, Rutt, Amy L. , Candelo, Estephanía , Rutt, Amy L. , Bridges, Margaret

Laryngoscope Investigative Otolaryngology | January 7, 2025 | Volume: 10 | Issue: 1 | Pages: No page available

10.1002/lio2.70069 Get It

AbstractIntroductionCastleman disease (CD) refers to a heterogeneous group of lymphoproliferative disorders, which rarely involves the larynx. Our goal in this study is to elucidate the clinical presentation, diagnostic techniques, and treatment methods of laryngeal CD through a scoping review and the addition of a new case.MethodsDue to limited existing literature, we employed a mixed methodology for review. First, we searched Google Scholar using terms related to laryngeal CD. Subsequently, we screened abstracts using Covidence, drawing from databases such as PubMed, Science Direct, ProQuest, and EMBASE. We shortlisted studies for data extraction, focusing on clinical presentations, diagnostics, and treatment methodologies. Finally, we described our additional case.ResultsScoping review revealed five qualifying laryngeal CD articles. Presenting symptoms included dysphagia, hoarseness, and dyspnea. Diagnosis was always established through histopathologic analysis. Management included local excision or radiotherapy. In our additional case, a 71‐year‐old male with known CD presented with neck swelling, dysphagia, and dysphonia. Exam revealed lymphoid laryngeal and supraglottic hyperplasia and edema. Laryngeal symptoms improved with medical management of CD.DiscussionGiven the rarity of laryngeal CD, its identification and management can be a challenge. Practitioners should be aware of characteristic points in a CD patient's history, physical exam, imaging, and biopsies. Local excision of obstructive lymphoid tissue and radiation are the best‐supported therapies. This study aims to build toward improvements in accurate diagnosis and appropriate treatment for laryngeal CD.
Quantifying capacity of otolaryngology‐head and neck surgery in Zimbabwe
Green, Katerina J. , Eyassu, Daniel G. , Arya, Priya , Douse, Dontre’ M. , Matinhira, Naboth, Chidziva, Clemence, Wiedermann, Joshua P. , Arya, Priya , Candelo, Estephanía , Green, Katerina , Jain, Amiti

Laryngoscope Investigative Otolaryngology | January 7, 2025 | Volume: 10 | Issue: 1 | Pages: No page available

10.1002/lio2.70062 Get It

AbstractObjective(s)To evaluate the otolaryngology surgical capacity in Harare, Zimbabwe by analyzing procedural volumes across four hospitals, one private and three public, from 2019 to 2022.MethodsA retrospective review of hand‐written surgical case logs was conducted at Harare Eye, Ear, Nose, and Throat Institute (HEENT), Parirenyatwa Group of Hospitals (PGH), Sally Mugabe Children's Hospital (SMCH), and Sally Mugabe Adult's Hospital (SMAH). Patient age and surgical intervention for all otolaryngology surgeries performed in the operating room from 2019 to 2022 were recorded. Procedures were categorized into six groups: head and neck malignancy, laryngeal surgery, oropharyngeal surgery, otologic surgery, rhinology/sinus surgery, and other. Data were analyzed using descriptive statistics to identify trends in surgical volume and types of procedures across hospitals.ResultsA total of 2626 procedures were recorded: 1470 at HEENT, 377 at PGH, 625 at SMCH, and 154 at SMAH. Of these, 39.5% were performed on pediatric patients and 60.5% on adult patients. The most common procedures were adenotonsillectomy/adenoidectomy/tonsillectomy (38.9%), diagnostic endoscopies (10.4%), and endoscopic sinus surgery (8.3%). HEENT performed the highest volume and widest range of procedures. HEENT had higher surgical volumes across all groups of procedure, except for laryngeal surgery.ConclusionThis study found disparities in otolaryngology surgical capacity between a private hospital, HEENT, and three public tertiary hospitals—SMCH, SMAH, and PGH, the largest hospital in the country—in Harare, Zimbabwe. Additionally, it highlights areas for targeted interventions in capacity building. This study establishes a foundation for understanding otolaryngologic surgical capacity in the country, supporting international collaboration, guiding future research, and serving as a model for similar assessments in other LMICs.Level of evidenceLevel VI.
Challenges and outcomes of airway surgery in a post‐war low‐resource setting: A case series from Mekelle, Ethiopia
Eyassu, Daniel G. , Candelo, Estephanía , Asgedom, Brhanu H. , Wallerius, Katherine P. , Twardus, Shaina W., Niermeyer, Weston L. , Green, Katerina J. , Athni, Tejas S. , Wiedermann, Joshua P. , Gomez, Estephania Candelo , Green, Katerina

Laryngoscope Investigative Otolaryngology | November 18, 2024 | Volume: 9 | Issue: 6 | Pages: No page available

10.1002/lio2.70034 Get It

AbstractObjectiveThis study aims to document and analyze the challenges and outcomes of performing complex airway surgery in a low‐resource, post‐war setting in Mekelle, Ethiopia.MethodsThis prospective case series examines clinical data from five patients who underwent airway reconstruction surgeries and one patient who underwent total laryngectomy at Ayder Comprehensive Specialized Hospital in Mekelle. Data included patient demographics, airway stenosis etiology and severity, operative details, postoperative outcomes, complications, and hospital length of stay. Ethical approval was obtained from institutional review boards at Mayo Clinic and Mekelle University.ResultsThe study included six patients aged 9–62 years, with surgeries comprising three cricotracheal resections, two tracheal resections, and one laryngectomy. Three reconstructions were for war‐related injuries. Challenges included power outages during surgeries, limitations in medical supplies and equipment, and inadequate perioperative care. Despite these, three patients requiring tracheostomies were successfully decannulated within a year. However, complications such as restenosis, infections, and the need for reintubation were common.ConclusionAirway surgeries in a low‐resource, post‐war setting face significant hurdles, including perioperative care quality, resource limitations, and infrastructure issues. Successful outcomes require multidisciplinary training tailored to local contexts, investments in hospital infrastructure and reliable electricity, and proper perioperative nutrition. This study highlights the need for comprehensive interventions to improve surgical care in such settings.Level of evidence: IV.
Real‐World Evaluation of Asthma Severity Following Endoscopic Sinus Surgery in Chronic Rhinosinusitis Patients
Caballero, Anyull D. B. , Candelo, Estephanía , Avila‐Castano, Karol , Alhalabi, Alaa , Donaldson, Angela M. , Bohorquez‐Caballero, Anyull D. , Gomez, Estephania Candelo , Donaldson, Angela M

OTO Open | September 18, 2024 | Volume: 8 | Issue: 3 | Pages: No page available

10.1002/oto2.70013 Get It

AbstractObjectiveThis study aimed to evaluate the impact of endoscopic sinus surgery (ESS) on asthma severity up to 12 months after surgical intervention.Study DesignRetrospective cohort.SettingTertiary care center.MethodsPatients with a history of asthma and Chronic Rhinosinusitis (CRS) who underwent ESS between 2013 and 2023 were included. Asthma severity was assessed according to current Global Initiative for Asthma (GINA) guidelines, classifying patients into mild, moderate, and severe based on medication requirements. Asthma severity was evaluated up to 3 months prior to ESS and 1‐year post‐ESS. Patients with aspirin‐exacerbated respiratory disease (AERD) were excluded. Statistical analysis was performed using McNemar test and Wilcoxon signed‐rank test to assess differences in asthma severity, medication doses, and number of medications.ResultsSixty‐five patients were included, of which 44 (67.7%) had CRS with nasal polyps (CRSwNP) and 21 (32.3%) had CRS without nasal polyps (CRSsNP). No significant differences were found in asthma severity pre‐ and post‐ESS (P = .175). Similarly, no differences were found in ICS doses (P = .999), total number of prescribed medications (P = .157) or presence of exacerbations before and after ESS (P = .078). However, a significant increase in time from last rescue inhaler use was noted after ESS, increasing from a median of 6.71 to 23.1 weeks (P = .004).ConclusionThis study is the first to assess the impact of ESS on asthma severity in a real‐world setting. Our findings suggest that ESS does not impact asthma severity classification. However, it might provide relief of asthma symptoms in the early postoperative period.
The State of Craniomaxillofacial Trauma Care in Low‐ and Middle‐Income Countries: A Scoping Review
Elwell, Zachary , Candelo, Estephanía , Srinivasan, Tarika , Zalaquett, Nader , Tuyishimire, Gratien, Ncogoza, Isaie , Jean-Gilles, Patrick, Legbo, J. N. , Tollefson, Travis T. , Zalaquett, Nader , Tuyishimire, Gratien , Ncogoza, Isaie , Legbo, Jacob Ndas , Tollefson, Travis , Shaye, David , Gomez, Estephania Candelo , Nuss, Sarah

OTO Open | August 29, 2024 | Volume: 8 | Issue: 3 | Pages: No page available

10.1002/oto2.70000 Get It

AbstractObjectiveThis scoping review aims to contribute a descriptive analysis of the craniomaxillofacial trauma (CMF trauma) literature in low‐ and middle‐income countries (LMICs) to identify knowledge gaps, direct future research, and inform policy.Data SourcesPubMed/MEDLINE, Cochrane Review, EMBASE, ClinicalTrials.gov, and Google Scholar from January 1, 2012 to December 10, 2023.Review MethodsThe Preferred Reporting Items for Systematic Reviews and Meta‐Analyses Extension for Scoping Reviews (PRISMA‐ScR) guided reporting, and the PRISMA flowchart documented database searches. Specific, predefined search terms and inclusion criteria were used for screening, and the Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) checklist was used for quality assessment. The search yielded 54 articles, with 13 meeting the inclusion criteria. Key findings were summarized and divided into 7 categories.ResultsThere were 10,420 patients (7739 [74.3%] male, 2681 [25.7%] female) with a male‐to‐female ratio of 2.9:1. The mean peak age of incidence of CMF trauma was 30.8 years, ranging from 20 to 40 years. Road traffic accidents were the leading cause (60.4%), followed by assault (27.2%) and falls (12.2%). The most common injuries were soft tissue injury (31.7%), isolated mandibular fracture (22.8%), and isolated middle‐third of mandible fracture (18.1%). The most common treatments were closed reduction and immobilization (29.5%), conservative management (27.6%), and open reduction and internal fixation (19.6%). Most patients (77.8%) experienced a treatment delay due to a lack of fixation materials (54.8%) or surgeon unavailability (35.7%).ConclusionCMF trauma remains a significant cause of global morbidity, yet there remains a lack of high‐quality, CMF trauma‐specific data in LMICs. Country‐specific investigations are required to enhance knowledge and inform novel interventions. Implementing policy change must be community‐specific and account for unique cultural barriers, attitudes, and behaviors to maximize patient care outcomes.
Predictors for Development of Chronic Rhinosinusitis in Transplant Recipients
Candelo, Estephanía , Bohorquez‐Caballero, Anyull D. , Avila‐Castano, Karol , Mercado, Lydia A., Donaldson, Angela M. , Donaldson, Angela, Gomez, Estephania Candelo

American Journal of Rhinology & Allergy | August 26, 2024 | Volume: 38 | Issue: 6 | Pages: 373-383

10.1177/19458924241272990 Get It

Objectives Studies suggest that transplant patients are at a higher risk of developing chronic rhinosinusitis (CRS). However, there is a dearth of studies describing the factors that may be linked to the development of CRS in this population. Our objective is to identify the risk factors associated with the development of CRS in transplant recipients. Study design Retrospective cohort. Setting Tertiary care center. Methods This cohort included 3347 transplant recipients seen between 2017 and 2022. Of these, 2128 patients met the inclusion criteria and were grouped according to whether they were diagnosed with CRS during the post-transplant period. The analysis included both univariate and multivariate analysis to ascertain the odds ratio (OR) and predictive factors. Results Of the 2128 patients, 649/2128 (30.4%) had CRS. CRS patients had an increased prevalence of previous endoscopic sinus surgery, allergic rhinitis, and recurrent acute rhinosinusitis in the pre-transplant period compared to the non-CRS group. According to the multivariate analysis, patients with primary immunodeficiency and additional transplant were 1.9 and 3.1 times more likely to develop CRS during the posttransplant period (95% CI: 1.3–2.6, p < .0001), (95% CI: 1.3 −7.3, p = .01), respectively. Sirolimus use was also associated with the development of CRS (OR = 1.4, 95% CI: 1.1–1.9, p = .01). Conclusion This study is the largest cohort aimed at determining the predictive factors associated with the development of CRS. Patients with pretransplant rhinologic conditions, hematologic deficiencies, and the utilization of specific immunosuppressants were found to have a higher likelihood of developing CRS following transplantation.
The impact of cadaveric donor transplant on the development of chronic rhinosinusitis and recalcitrant disease
Candelo, Estephanía , Bohorquez‐Caballero, Anyull D. , Avila‐Castano, Karol , Wadei, Hani M. , Donaldson, Angela M. , Wadei, Hani, Gomez, Estephania Candelo , Caballero, Anyull D. B. , Wadei, Hani M

International Forum of Allergy & Rhinology | August 24, 2024 | Volume: 14 | Issue: 12 | Pages: 1953-1956

10.1002/alr.23429 Get It

Key points The study found a higher incidence of chronic rhinosinusitis (CRS) and recalcitrant CRS in cadaveric organ transplant recipients compared to those receiving living donor transplants. Recipients of cadaveric transplants were 1.32 times more likely to develop CRS and 1.68 times more likely to develop medically recalcitrant CRS. Living kidney transplants significantly reduced the risk of developing CRS (OR = 0.12) and recalcitrant CRS (OR = 0.11), highlighting a potentially protective effect against these conditions. In contrast, cadaveric liver transplants were associated with an increased risk of CRS and medically recalcitrant CRS. Kaplan–Meier survival analysis indicated a significant difference in time to CRS onset between cadaveric and living donor transplants. Median time to CRS onset was longer for living donor recipients (21.1 months) compared to cadaveric recipients (15.6 months). This study underscores the need for transplant teams and otolaryngologist to consider donor type during transplant follow‐up due to differing risks of CRS development.