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Callander JK, Souza SS, Eltawil Y, El-Sayed IH, George JR, Ha P, Ryan WR, Xu MJ, Heaton CM. Prognostic risk factors of buccal squamous cell carcinoma: A case-control study. Head Neck 2024. [PMID: 38411290 DOI: 10.1002/hed.27705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 01/30/2024] [Accepted: 02/13/2024] [Indexed: 02/28/2024] Open
Abstract
OBJECTIVES To describe the clinicopathologic presentation of buccal squamous cell carcinoma and identify risks factors for recurrence and overall survival. METHODS This is a retrospective case-control study of patients with oral cavity squamous cell carcinoma (OCSCC) treated at a single tertiary care center between 2010 and 2022. All patients with buccal subsite OCSCC treated during this time frame were included and paired with a randomly selected age and gender matched patient with non-buccal OCSCC. Relevant data was collected via chart review. RESULTS Seventy-seven patients with buccal SCC were matched with 77 non-buccal OCSCC controls. The median follow-up time was 27 months (IQR 14-61). Median age was 67 years (IQR 57-75) and 53% of the cohort was female. Twenty (26%) buccal SCC patients experienced a recurrence versus 19 (25%) in the controls. Age ≥65-years-old increased odds of all-cause mortality in the buccal SCC group, but not in the control group. Perineural invasion and positive margins increased odds of recurrence in the buccal group only. Overall survival and progression-free survival did not differ between the groups, despite a greater number of T2 buccal tumors and T1 non-buccal tumors. CONCLUSIONS Buccal SCC presents at a higher T stage than other oral cavity SCC subsite and may exhibit variance in the pathologic risk factors that predict poor outcomes versus non-buccal OCSCC. Despite these relatively minor differences, however, oncologic outcomes between these groups were similar.
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Affiliation(s)
- Jacquelyn K Callander
- Department of Otolaryngology-Head and Neck Surgery, University of California-San Francisco, San Francisco, California, USA
| | - Spenser S Souza
- Department of Otolaryngology-Head and Neck Surgery, University of California-San Francisco, San Francisco, California, USA
| | - Yasmin Eltawil
- University of California San Francisco School of Medicine, San Francisco, California, USA
| | - Ivan H El-Sayed
- Department of Otolaryngology-Head and Neck Surgery, University of California-San Francisco, San Francisco, California, USA
- Division of Head and Neck Oncologic and Endocrine Surgery, Department of Otolaryngology-Head and Neck Surgery, San Francisco, California, USA
| | - Jonathan R George
- Department of Otolaryngology-Head and Neck Surgery, University of California-San Francisco, San Francisco, California, USA
- Division of Head and Neck Oncologic and Endocrine Surgery, Department of Otolaryngology-Head and Neck Surgery, San Francisco, California, USA
| | - Patrick Ha
- Department of Otolaryngology-Head and Neck Surgery, University of California-San Francisco, San Francisco, California, USA
- Division of Head and Neck Oncologic and Endocrine Surgery, Department of Otolaryngology-Head and Neck Surgery, San Francisco, California, USA
| | - William R Ryan
- Department of Otolaryngology-Head and Neck Surgery, University of California-San Francisco, San Francisco, California, USA
- Division of Head and Neck Oncologic and Endocrine Surgery, Department of Otolaryngology-Head and Neck Surgery, San Francisco, California, USA
| | - Mary Jue Xu
- Department of Otolaryngology-Head and Neck Surgery, University of California-San Francisco, San Francisco, California, USA
- Division of Head and Neck Oncologic and Endocrine Surgery, Department of Otolaryngology-Head and Neck Surgery, San Francisco, California, USA
| | - Chase M Heaton
- Department of Otolaryngology-Head and Neck Surgery, University of California-San Francisco, San Francisco, California, USA
- Division of Head and Neck Oncologic and Endocrine Surgery, Department of Otolaryngology-Head and Neck Surgery, San Francisco, California, USA
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Lee RH, Truong A, Wu X, Kang H, Algazi AP, El-Sayed IH, George JR, Heaton CM, Ryan WR, Ha PK, Wai KC. The neutrophil-to-lymphocyte ratio in salivary gland cancers treated with pembrolizumab. Head Neck 2024; 46:129-137. [PMID: 37897202 DOI: 10.1002/hed.27565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 09/25/2023] [Accepted: 10/17/2023] [Indexed: 10/29/2023] Open
Abstract
BACKGROUND A minority of patients with recurrent/metastatic (R/M) salivary gland cancers (SGCs) benefit from immune checkpoint inhibitors (ICIs), necessitating reliable biomarkers for ICI response prediction. METHODS Retrospective observational study of R/M SGC patients treated with pembrolizumab between 2016 and 2022, with a primary outcome of 6-month progression-free survival (PFS) and secondary outcome of 2-year overall survival (OS). Univariate and multivariable Cox proportional hazards models were employed. RESULTS Twenty R/M SGC patients were included. After adjustment, NLR as a continuous variable was independently associated with 6-month PFS (HR 1.30, 95% CI 1.10-1.54, p = 0.002) and 2-year OS (HR 1.33, 95% CI 1.07-1.66, p = 0.010). Similarly, NLR ≥ 5 was associated with higher hazards of progression at 6 months (HR 12.85, 95% CI 2.17-76.16, p = 0.005) and death at 2 years (HR 11.25, 95% CI 1.67-75.77, p = 0.013). CONCLUSIONS Higher pretreatment NLR was independently associated with inferior 6-month PFS and 2-year OS in pembrolizumab-treated R/M SGC patients.
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Affiliation(s)
- Rex H Lee
- Department of Otolaryngology - Head and Neck Surgery, University of California San Francisco, San Francisco, California, USA
| | - Angeline Truong
- Department of Otolaryngology - Head and Neck Surgery, University of California San Francisco, San Francisco, California, USA
| | - Xin Wu
- Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, California, USA
| | - Hyunseok Kang
- Department of Medicine, University of California San Francisco, San Francisco, California, USA
| | - Alain P Algazi
- Department of Medicine, University of California San Francisco, San Francisco, California, USA
| | - Ivan H El-Sayed
- Department of Otolaryngology - Head and Neck Surgery, University of California San Francisco, San Francisco, California, USA
| | - Jonathan R George
- Department of Otolaryngology - Head and Neck Surgery, University of California San Francisco, San Francisco, California, USA
| | - Chase M Heaton
- Department of Otolaryngology - Head and Neck Surgery, University of California San Francisco, San Francisco, California, USA
| | - William R Ryan
- Department of Otolaryngology - Head and Neck Surgery, University of California San Francisco, San Francisco, California, USA
| | - Patrick K Ha
- Department of Otolaryngology - Head and Neck Surgery, University of California San Francisco, San Francisco, California, USA
| | - Katherine C Wai
- Department of Otolaryngology - Head and Neck Surgery, University of California San Francisco, San Francisco, California, USA
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3
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Ahmad TR, Vasudevan HN, Lazar AA, Chan JW, George JR, Alvarado MD, Yu SS, Daud A, Yom SS. Should Sentinel Lymph Node Biopsy Status Guide Adjuvant Radiation Therapy in Patients With Merkel Cell Carcinoma? Adv Radiat Oncol 2021; 6:100764. [PMID: 34485762 PMCID: PMC8408430 DOI: 10.1016/j.adro.2021.100764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 07/05/2021] [Accepted: 07/13/2021] [Indexed: 11/25/2022] Open
Abstract
Purpose Radiation of the draining lymph node basin remains controversial for Merkel cell carcinoma, particularly in the era of sentinel lymph node biopsy (SLNB). Methods and Materials Based on a 20-year experience using SLNB-guided adjuvant radiation therapy (RT), we conducted a retrospective review of clinically node-negative patients testing 2 hypotheses: (1) whether nodal RT could be safely omitted in SLNB-negative Merkel cell carcinoma and (2) whether the excised primary site should always be radiated. Clinically node-positive patients were excluded. Results Among 57 clinically node-negative patients who underwent SLNB and wide local excision (WLE), 42 (74%) had a negative SLNB, and 15 (26%) had a positive SLNB. At a median follow-up of 43 months (range, 5-182), SLNB-negative patients irradiated to the primary site had improved 4-year disease-specific survival (100% vs 65%, P = .008), local recurrence-free survival (100% vs 76%, P = .009), and distant recurrence-free survival (100% vs 75%, P = .008), but not overall survival (87.5% vs 57.7%, P = .164) compared with SLNB-positive patients receiving comprehensive RT. Among SLNB-negative patients treated with WLE only, 67% (6/9) had a disease relapse, half of which were local relapses (33%). Conclusions In this single-institution retrospective review, after negative SLNB and WLE, RT given only to the primary site provided 100% disease control without a need for nodal RT. Among SLNB-negative patients who had WLE, omission of postoperative primary-site RT was associated with 67% cancer relapse, of which half was local.
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Affiliation(s)
- Tessnim R Ahmad
- Department of Ophthalmology, University of California San Francisco, San Francisco, California
| | - Harish N Vasudevan
- Department of Radiation Oncology, University of California San Francisco, San Francisco, California
| | - Ann A Lazar
- Department of Preventative and Restorative Dental Sciences, University of California San Francisco, San Francisco, California
| | - Jason W Chan
- Department of Radiation Oncology, University of California San Francisco, San Francisco, California
| | - Jonathan R George
- Department of Otolaryngology - Head and Neck Surgery, University of California San Francisco, San Francisco, California
| | - Michael D Alvarado
- Department of Surgery, University of California San Francisco, San Francisco, California
| | - Siegrid S Yu
- Department of Dermatology, University of California San Francisco, San Francisco, California
| | - Adil Daud
- Department of Medicine, University of California San Francisco, San Francisco, California
| | - Sue S Yom
- Department of Radiation Oncology, University of California San Francisco, San Francisco, California
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4
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Lee RH, Salesky M, Benjamin T, El-Sayed IH, George JR, Ha PK, Ryan WR, Heaton CM. Impact of Smoking and Primary Tumor Subsite on Recurrence in HPV-Associated Oropharyngeal Squamous Cell Carcinoma. Otolaryngol Head Neck Surg 2021; 166:704-711. [PMID: 34182836 DOI: 10.1177/01945998211024515] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVE To describe risk of recurrence and recurrence characteristics between ever- and never-smoking patients with human papillomavirus-associated oropharyngeal squamous cell carcinoma (HPV+ OPSCC) when stratified by primary tumor subsite. STUDY DESIGN Retrospective observational study. SETTING Tertiary care center. METHODS Retrospective chart review of 171 patients with HPV+ OPSCC with primary treatment between 2008 and 2019. Five-year recurrence-free survival and risk of recurrence were evaluated through Kaplan-Meier curves with log-rank test and Cox proportional hazards models, respectively. RESULTS Of 171 patients with HPV+ OPSCC, 81.9% were male, and the average age was 63.9 years. Eighty patients (46.8%) had a smoking history (average, 17.7 pack-years), including 4 current smokers. Recurrence occurred in 31 patients (18.1%), 19 of whom were ever smokers. The recurrence rate for ever smokers with primary base of tongue (BOT) cancer was 41.7%, while 5.1% of never smokers with BOT primaries had recurrence. For primary tonsillar disease, 9.1% of ever smokers had recurrence versus 19.2% of never smokers. Five-year recurrence-free survival for BOT primaries was lower in ever smokers than never smokers (P = .001) but did not differ between ever and never smokers for tonsillar primaries (P = .215). In multivariable analysis across this period, ever-smoking status was associated with higher risk of recurrence than never-smoking status in BOT primaries (adjusted hazard ratio, 7.36; 95% CI, 1.61-33.68; P = .010) but with lower risk of recurrence after tonsillar primaries (adjusted hazard ratio, 0.23; 95% CI, 0.06-0.89; P = .033). CONCLUSION Smoking may uniquely interact with tumor subsites within the oropharynx to influence recurrence risk. Understanding the association between smoking and HPV+ OPSCC recurrence could lead to personalized, evidence-based treatments to improve oncologic outcomes.
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Affiliation(s)
- Rex H Lee
- School of Medicine, University of California San Francisco, San Francisco, California, USA
| | - Madeleine Salesky
- School of Medicine, University of California San Francisco, San Francisco, California, USA
| | - Tania Benjamin
- Department of Otolaryngology-Head and Neck Surgery, University of California San Francisco, San Francisco, California, USA
| | - Ivan H El-Sayed
- Department of Otolaryngology-Head and Neck Surgery, University of California San Francisco, San Francisco, California, USA
| | - Jonathan R George
- Department of Otolaryngology-Head and Neck Surgery, University of California San Francisco, San Francisco, California, USA
| | - Patrick K Ha
- Department of Otolaryngology-Head and Neck Surgery, University of California San Francisco, San Francisco, California, USA
| | - William R Ryan
- Department of Otolaryngology-Head and Neck Surgery, University of California San Francisco, San Francisco, California, USA
| | - Chase M Heaton
- Department of Otolaryngology-Head and Neck Surgery, University of California San Francisco, San Francisco, California, USA
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5
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Larson AR, Han M, Webb KL, Ochoa E, Stanford-Moore G, El-Sayed IH, George JR, Ha PK, Heaton CM, Ryan WR. Patient-Reported Outcomes of Split-Thickness Skin Grafts for Floor of Mouth Cancer Reconstruction. ORL J Otorhinolaryngol Relat Spec 2021; 83:151-158. [PMID: 33582667 DOI: 10.1159/000512085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 09/25/2020] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Patient-reported outcome measures (PROM) on quality of life (QOL) for early-stage floor of mouth carcinoma (FOM-CA) undergoing surgical resection and split-thickness skin graft (STSG) reconstruction have not been established. We have performed a cross-sectional QOL analysis of such patients to define functional postoperative outcomes. METHODS Patients with pathologic stage T1/T2 FOM-CA who underwent resection and STSG reconstruction at a tertiary academic cancer center reported outcomes with the University of Washington QOL (v4) questionnaire after at least 6 months since surgery. RESULTS Twenty-four out of 49 eligible patients completed questionnaires with a mean follow-up of 41 months (range: 6-88). Subsites of tumor involvement/resection included the following: (1) lateral FOM (L-FOM) (n = 17), (2) anterior FOM (A-FOM) (n = 4), and (3) alveolar ridge with FOM, all of whom underwent lateral marginal mandibulectomy (MM-FOM) (n = 3). All patients reported swallowing scores of 70 ("I cannot swallow certain solid foods") or better. Ninety-six percent (23/24) reported speech of 70 ("difficulty saying some words, but I can be understood over the phone") or better. A-FOM patients reported worse chewing than L-FOM patients (mean: 50.0 vs. 85.3; p = 0.01). All 4 A-FOM patients reported a low chewing score of 50 ("I can eat soft solids but cannot chew some foods"). Otherwise, there were no significant differences between subsite groups in swallowing, speech, or taste. CONCLUSION STSG reconstructions for pathologic T1-T2 FOM-CA appear to result in acceptable PROM QOL outcomes with the exception of A-FOM tumors having worse chewing outcomes.
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Affiliation(s)
- Andrew R Larson
- Department of Otolaryngology-Head and Neck Surgery, University of California, San Francisco, California, USA
| | - Mary Han
- School of Medicine, University of California, San Francisco, California, USA
| | | | - Edgar Ochoa
- School of Medicine, University of California, San Francisco, California, USA
| | - Gaelen Stanford-Moore
- Department of Otolaryngology-Head and Neck Surgery, University of California, San Francisco, California, USA
| | - Ivan H El-Sayed
- Division of Head and Neck Oncologic and Endocrine Surgery, Department of Otolaryngology-Head and Neck Surgery, University of California, San Francisco, California, USA
| | - Jonathan R George
- Division of Head and Neck Oncologic and Endocrine Surgery, Department of Otolaryngology-Head and Neck Surgery, University of California, San Francisco, California, USA
| | - Patrick K Ha
- Division of Head and Neck Oncologic and Endocrine Surgery, Department of Otolaryngology-Head and Neck Surgery, University of California, San Francisco, California, USA
| | - Chase M Heaton
- Division of Head and Neck Oncologic and Endocrine Surgery, Department of Otolaryngology-Head and Neck Surgery, University of California, San Francisco, California, USA
| | - William R Ryan
- Division of Head and Neck Oncologic and Endocrine Surgery, Department of Otolaryngology-Head and Neck Surgery, University of California, San Francisco, California, USA,
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6
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Wai KC, Xu MJ, Lee RH, El-Sayed IH, George JR, Heaton CM, Knott PD, Park AM, Ryan WR, Seth R, Ha PK. Head and neck surgery during the coronavirus-19 pandemic: The University of California San Francisco experience. Head Neck 2020; 43:622-629. [PMID: 33098178 DOI: 10.1002/hed.26514] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 10/02/2020] [Accepted: 10/13/2020] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Guidelines regarding head and neck surgical care have evolved during the coronavirus-19 (COVID-19) pandemic. Data on operative management have been limited. METHODS We compared two cohorts of patients undergoing head and neck or reconstructive surgery between March 16, 2019 and April 16, 2019 (pre-COVID-19) and March 16, 2020 and April 16, 2020 (COVID-19) at an academic center. Perioperative, intraoperative, and postoperative outcomes were recorded. RESULTS There were 63 operations during COVID-19 and 84 operations during pre-COVID-19. During COVID-19, a smaller proportion of patients had benign pathology (12% vs 20%, respectively) and underwent thyroid procedures (2% vs 23%) while a greater proportion of patients underwent microvascular reconstruction±ablation (24% vs 12%,). Operative times increased, especially among patients undergoing microvascular reconstruction±ablation (687 ± 112 vs 596 ± 91 minutes, P = .04). Complication rates and length of stay were similar. CONCLUSIONS During COVID-19, perioperative outcomes were similar, operative time increased, and there were no recorded transmissions to staff or patients. Continued surgical management of head and neck cancer patients can be provided safely.
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Affiliation(s)
- Katherine C Wai
- Department of Otolaryngology Head and Neck Surgery, University of California, San Francisco, California, USA
| | - Mary Jue Xu
- Department of Otolaryngology Head and Neck Surgery, University of California, San Francisco, California, USA
| | - Rex H Lee
- School of Medicine, University of California, San Francisco, California, USA
| | - Ivan H El-Sayed
- Department of Otolaryngology Head and Neck Surgery, University of California, San Francisco, California, USA
| | - Jonathan R George
- Department of Otolaryngology Head and Neck Surgery, University of California, San Francisco, California, USA
| | - Chase M Heaton
- Department of Otolaryngology Head and Neck Surgery, University of California, San Francisco, California, USA
| | - P Daniel Knott
- Department of Otolaryngology Head and Neck Surgery, University of California, San Francisco, California, USA
| | - Andrea M Park
- Department of Otolaryngology Head and Neck Surgery, University of California, San Francisco, California, USA
| | - William R Ryan
- Department of Otolaryngology Head and Neck Surgery, University of California, San Francisco, California, USA
| | - Rahul Seth
- Department of Otolaryngology Head and Neck Surgery, University of California, San Francisco, California, USA
| | - Patrick K Ha
- Department of Otolaryngology Head and Neck Surgery, University of California, San Francisco, California, USA
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7
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Chang CF, Ei-Sayed IH, George JR, Heaton CM, Ryan WR, Susko MS, Yom SS, Ha PK. Modified technique of submandibular gland transfer followed by intensity modulated radiotherapy to reduce xerostomia in head and neck cancer patients. Head Neck 2020; 42:2340-2347. [PMID: 32400948 DOI: 10.1002/hed.26249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 02/14/2020] [Accepted: 04/22/2020] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Xerostomia is one of the most common long-term adverse effects of radiotherapy for head and neck cancer patients. Contralateral submandibular gland transfer (SMG-T) before radiotherapy was shown to reduce xerostomia compared to pilocarpine. We sought to evaluate a modification of this surgery preserving the ipsilateral facial artery and vein to simplify the SMG-T. METHODS Eighteen patients planned for head and neck intensity modulated radiotherapy to both necks were reviewed. Surgical complications were recorded. The grade of xerostomia was assessed after treatment completion. RESULTS There were no minor or major complications resulting from the modified SMG-T. At 24.5-months follow up, the incidence of post-treatment moderate to severe xerostomia was 16.7%. No locoregional recurrence occurred. Only one patient had distant solitary lung metastasis. CONCLUSION The modified SMG-T technique is a practical and effective method to reduce the dose of radiation to the contralateral SMG and limit post-treatment xerostomia.
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Affiliation(s)
- Chia-Fan Chang
- Department of Otolaryngology-Head and Neck Surgery, Taipei Veterans General Hospital, Taipei, Taiwan.,Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Ivan H Ei-Sayed
- Department of Otolaryngology-Head and Neck Surgery, University of California San Francisco, San Francisco, California, USA
| | - Jonathan R George
- Department of Otolaryngology-Head and Neck Surgery, University of California San Francisco, San Francisco, California, USA
| | - Chase M Heaton
- Department of Otolaryngology-Head and Neck Surgery, University of California San Francisco, San Francisco, California, USA
| | - William R Ryan
- Department of Otolaryngology-Head and Neck Surgery, University of California San Francisco, San Francisco, California, USA
| | - Matt S Susko
- Department of Radiation Oncology, University of California San Francisco, San Francisco, California, USA
| | - Sue S Yom
- Department of Radiation Oncology, University of California San Francisco, San Francisco, California, USA
| | - Patrick K Ha
- Department of Otolaryngology-Head and Neck Surgery, University of California San Francisco, San Francisco, California, USA
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Ochoa E, Larson AR, Han M, Webb KL, Stanford-Moore GB, El-Sayed IH, George JR, Ha PK, Heaton CM, Ryan WR. Patient-Reported Quality of Life After Resection With Primary Closure for Oral Tongue Carcinoma. Laryngoscope 2020; 131:312-318. [PMID: 32379355 DOI: 10.1002/lary.28723] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 04/02/2020] [Accepted: 04/14/2020] [Indexed: 12/23/2022]
Abstract
OBJECTIVES/HYPOTHESIS For early-stage oral tongue carcinoma and carcinoma in situ (ESOTCCIS), we evaluated patient-reported quality-of-life (QOL) outcomes following resection with primary closure (R-PC). STUDY DESIGN Retrospective review at an academic cancer center. METHODS Thirty-nine ESOTCCIS patients (Tis, T1, T2) who underwent R-PC without radiation completed the University of Washington Quality of Life Questionnaire Version 4 (UW-QOL) at least 6 months since R-PC (mean = 2.39 years; range = 0.5-6.7 years). We compared UW-QOL scores for pain, swallowing, chewing, speech, and taste to established normative population scores. Multivariable regression analysis evaluated factors associated with QOL impairment. RESULTS ESOTCCIS patients who underwent R-PC in comparison to the normative population reported significantly worse mean speech (87.7 vs. 98, P < .001) and taste (85.6 vs. 95, P = .002) scores and no significant differences in mean pain (91.7 vs. 86, P = .96), swallowing (100 vs. 98, P = .98), chewing (97.4 vs. 94, P = .98) scores. For speech and taste, 59% (23/39) reported no postoperative change from baseline, whereas 41% (16/39) and 35.9% (14/39) reported mild impairment, respectively. Overall, postoperative QOL was reported as good, very good, or outstanding by 87.2% (34/39). Higher American Society of Anesthesiologists class, cT1 compared to CIS, and ventral tongue involvement were independently associated with worse speech. Age < 60 years was independently associated with worse taste. CONCLUSIONS ESOTCCIS patients who undergo R-PC without radiation can expect long-term swallowing, chewing, and pain to be in the normative range. Although a majority of patients can expect to achieve normative speech and taste outcomes, R-PC carries the risks of mild speech and/or taste impairments. LEVEL OF EVIDENCE 4 Laryngoscope, 131:312-318, 2021.
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Affiliation(s)
- Edgar Ochoa
- School of Medicine, University of California, San Francisco, California, U.S.A
| | - Andrew R Larson
- Department of Otolaryngology-Head and Neck Surgery, University of California, San Francisco, California, U.S.A
| | - Mary Han
- School of Medicine, University of California, San Francisco, California, U.S.A
| | | | - Gaelen B Stanford-Moore
- Department of Otolaryngology-Head and Neck Surgery, University of California, San Francisco, California, U.S.A
| | - Ivan H El-Sayed
- Division of Head and Neck Oncologic and Endocrine Surgery, Department of Otolaryngology-Head and Neck Surgery, University of California, San Francisco, California, U.S.A
| | - Jonathan R George
- Division of Head and Neck Oncologic and Endocrine Surgery, Department of Otolaryngology-Head and Neck Surgery, University of California, San Francisco, California, U.S.A
| | - Patrick K Ha
- Division of Head and Neck Oncologic and Endocrine Surgery, Department of Otolaryngology-Head and Neck Surgery, University of California, San Francisco, California, U.S.A
| | - Chase M Heaton
- Division of Head and Neck Oncologic and Endocrine Surgery, Department of Otolaryngology-Head and Neck Surgery, University of California, San Francisco, California, U.S.A
| | - William R Ryan
- Division of Head and Neck Oncologic and Endocrine Surgery, Department of Otolaryngology-Head and Neck Surgery, University of California, San Francisco, California, U.S.A
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9
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Xu MJ, Plonowska KA, Gurman ZR, Humphrey AK, Ha PK, Wang SJ, El‐Sayed IH, Heaton CM, George JR, Yom SS, Algazi AP, Ryan WR. Treatment modality impact on quality of life for human papillomavirus–associated oropharynx cancer. Laryngoscope 2019; 130:E48-E56. [DOI: 10.1002/lary.27937] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 01/05/2019] [Accepted: 02/27/2019] [Indexed: 02/02/2023]
Affiliation(s)
- Mary Jue Xu
- Department of Otolaryngology–Head and Neck Surgery San Francisco California
| | | | - Zev R. Gurman
- School of MedicineUniversity of Virginia Charlottesville Virginia
| | - Amanda K. Humphrey
- Department of Otolaryngology–Head and Neck Surgery San Francisco California
| | - Patrick K. Ha
- Division of Head and Neck Oncologic and Endocrine Surgery, Department of Otolaryngology–Head and Neck Surgery San Francisco California
| | - Steven J. Wang
- Department of Otolaryngology–Head and Neck SurgeryUniversity of Arizona Phoenix Arizona U.S.A
| | - Ivan H. El‐Sayed
- Division of Head and Neck Oncologic and Endocrine Surgery, Department of Otolaryngology–Head and Neck Surgery San Francisco California
| | - Chase M. Heaton
- Division of Head and Neck Oncologic and Endocrine Surgery, Department of Otolaryngology–Head and Neck Surgery San Francisco California
| | - Jonathan R. George
- Division of Head and Neck Oncologic and Endocrine Surgery, Department of Otolaryngology–Head and Neck Surgery San Francisco California
| | - Sue S. Yom
- Department of Otolaryngology–Head and Neck Surgery San Francisco California
- Department of Radiation Oncology San Francisco California
| | - Alain P. Algazi
- Department of Medicine (Hematology/Oncology)University of California–San Francisco San Francisco California
| | - William R. Ryan
- Division of Head and Neck Oncologic and Endocrine Surgery, Department of Otolaryngology–Head and Neck Surgery San Francisco California
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Tamplen ML, Tamplen J, Shuman E, Heaton CM, George JR, Wang SJ, Ryan WR. Comparison of Output Volume Thresholds for Drain Removal After Selective Lateral Neck Dissection: A Randomized Clinical Trial. JAMA Otolaryngol Head Neck Surg 2019; 143:1195-1199. [PMID: 28837725 DOI: 10.1001/jamaoto.2017.1414] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- Matthew L Tamplen
- Division of Head and Neck Oncologic and Endocrine Surgery, Department of Otolaryngology-Head and Neck Surgery, Bakar Cancer Hospital, Helen Diller Comprehensive Cancer Center, University of California San Francisco Medical Center at Mission Bay, San Francisco
| | - Jesse Tamplen
- Lean Transformation Office, University of California, San Francisco
| | - Elizabeth Shuman
- currently a medical student at School of Medicine, University of California, San Francisco
| | - Chase M Heaton
- Division of Head and Neck Oncologic and Endocrine Surgery, Department of Otolaryngology-Head and Neck Surgery, Bakar Cancer Hospital, Helen Diller Comprehensive Cancer Center, University of California San Francisco Medical Center at Mission Bay, San Francisco
| | - Jonathan R George
- Division of Head and Neck Oncologic and Endocrine Surgery, Department of Otolaryngology-Head and Neck Surgery, Bakar Cancer Hospital, Helen Diller Comprehensive Cancer Center, University of California San Francisco Medical Center at Mission Bay, San Francisco
| | - Steven J Wang
- Department of Otolaryngology-Head and Neck Surgery, University of Arizona, Tucson
| | - William R Ryan
- Division of Head and Neck Oncologic and Endocrine Surgery, Department of Otolaryngology-Head and Neck Surgery, Bakar Cancer Hospital, Helen Diller Comprehensive Cancer Center, University of California San Francisco Medical Center at Mission Bay, San Francisco
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Wu TJ, Ha PK, El-Sayed IH, George JR, Heaton CM, Ryan WR, Russell MD. Socioeconomic disparities in a population of patients undergoing total thyroidectomy for benign disease. Head Neck 2018; 41:715-721. [PMID: 30521675 DOI: 10.1002/hed.25421] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 07/07/2018] [Accepted: 09/12/2018] [Indexed: 11/07/2022] Open
Abstract
BACKGROUND This study examines the effect of insurance status (as a measure of socioeconomic status) on patient with benign thyroid disease. METHODS A retrospective review was performed among 60 patients undergoing total thyroidectomy for benign thyroid disease. Univariate and multivariable analyses examined the relationship between insurance status and thyroid volume (sum of the left and right lobe volumes). RESULTS Twenty-eight (47%) patients were considered of underinsured/uninsured status, and 32 (53%) patients were considered of private/government/military insurance status. Median pathologic whole thyroid volume was 66 mL (range, 2-855). After multivariable linear regression, underinsured/uninsured status was the only significant predictor of larger volume (correlation coefficient [r] = 118; 95% CI, 42 to 194; P = .003), after adjusting for age, sex, body mass index, and presence of concomitant thyroid disease and compressive symptoms. CONCLUSION Patients of underinsured/uninsured status suffered more severe disease presentations at time of thyroidectomy, as measured by larger thyroid volumes.
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Affiliation(s)
- Tara J Wu
- Department of Head and Neck Surgery, Los Angeles Medical Center, Ronald Reagan University of California, California, Los Angeles
| | - Patrick K Ha
- Division of Head and Neck Oncologic and Endocrine Surgery, Department of Otolaryngology-Head and Neck Surgery, University of California, San Francisco, San Francisco, California
| | - Ivan H El-Sayed
- Division of Head and Neck Oncologic and Endocrine Surgery, Department of Otolaryngology-Head and Neck Surgery, University of California, San Francisco, San Francisco, California
| | - Jonathan R George
- Division of Head and Neck Oncologic and Endocrine Surgery, Department of Otolaryngology-Head and Neck Surgery, University of California, San Francisco, San Francisco, California
| | - Chase M Heaton
- Division of Head and Neck Oncologic and Endocrine Surgery, Department of Otolaryngology-Head and Neck Surgery, University of California, San Francisco, San Francisco, California
| | - William R Ryan
- Division of Head and Neck Oncologic and Endocrine Surgery, Department of Otolaryngology-Head and Neck Surgery, University of California, San Francisco, San Francisco, California
| | - Marika D Russell
- Division of Head and Neck Oncologic and Endocrine Surgery, Department of Otolaryngology-Head and Neck Surgery, University of California, San Francisco, San Francisco, California
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Plonowska KA, Strohl MP, Wang SJ, Ha PK, George JR, Heaton CM, El-Sayed IH, Mallen-St. Clair J, Ryan WR. Human Papillomavirus–Associated Oropharyngeal Cancer: Patterns of Nodal Disease. Otolaryngol Head Neck Surg 2018; 160:502-509. [DOI: 10.1177/0194599818801907] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Objective To characterize patterns of neck lymph node (LN) metastases in human papillomavirus (HPV)–associated oropharyngeal squamous cell carcinoma, represented by p16 positivity (p16+OPSCC). Study Design Case series with chart review. Setting Tertiary care center. Subjects and Methods Neck dissection (ND) specimens of nonirradiated p16+OPSCC patients were analyzed for frequencies of clinically evident and occult LNs by neck level. Local, regional, and distant recurrences were reviewed. Results Seventy p16+OPSCC patients underwent primary site transoral robotic surgery and 82 NDs of varying levels. Metastatic pathologic LNs were found at the following frequencies: 0% (0/28) in level I, 75.6% (62/82) in level II with 57.4% (35/61) in level IIA and 13.1% (8/61) in level IIB, 22.0% (18/82) in level III, 7.0% (5/71) in level IV, and 6.3% (1/16) in level V. The level V LN was clinically evident preoperatively. Five of 21 (23.8%) elective NDs contained occult LNs, all of which were in level II and without extranodal extension. Twenty-seven (38.6%) patients underwent adjuvant radiation; 19 (27.1%) patients underwent adjuvant chemoradiation. With a mean follow-up of 29 months, 3 patients had developed recurrences, with all but 1 patient still alive. All patients who recurred had refused at least a component of indicated adjuvant treatment. Conclusions For p16+OPSCC, therapeutic NDs should encompass any levels bearing suspicious LNs and levels IIA-B, III, and IV, while elective NDs should be performed and encompass at least levels IIA-B and III. These selective ND plans, followed by indicated adjuvant treatment, are associated with a low nodal recurrence rate.
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Affiliation(s)
- Karolina A. Plonowska
- School of Medicine, University of California–San Francisco, San Francisco, California, USA
| | - Madeleine P. Strohl
- Department of Otolaryngology–Head and Neck Surgery, University of California–San Francisco, San Francisco, California, USA
| | - Steven J. Wang
- Department of Otolaryngology–Head and Neck Surgery, University of Arizona, Phoenix, Arizona, USA
| | - Patrick K. Ha
- Division of Head and Neck Oncologic and Endocrine, Department of Otolaryngology–Head and Neck Surgery, University of California–San Francisco, San Francisco, California, USA
| | - Jonathan R. George
- Division of Head and Neck Oncologic and Endocrine, Department of Otolaryngology–Head and Neck Surgery, University of California–San Francisco, San Francisco, California, USA
| | - Chase M. Heaton
- Division of Head and Neck Oncologic and Endocrine, Department of Otolaryngology–Head and Neck Surgery, University of California–San Francisco, San Francisco, California, USA
| | - Ivan H. El-Sayed
- Division of Head and Neck Oncologic and Endocrine, Department of Otolaryngology–Head and Neck Surgery, University of California–San Francisco, San Francisco, California, USA
| | - Jon Mallen-St. Clair
- Department of Otolaryngology–Head and Neck Surgery, Cedars Sinai Medical Center, Los Angeles, California, USA
| | - William R. Ryan
- Division of Head and Neck Oncologic and Endocrine, Department of Otolaryngology–Head and Neck Surgery, University of California–San Francisco, San Francisco, California, USA
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Formeister EJ, Sean Alemi A, El-Sayed I, George JR, Ha P, Daniel Knott P, Ryan WR, Seth R, Tamplen ML, Heaton CM. Shorter interval between radiation therapy and salvage laryngopharyngeal surgery increases complication rates following microvascular free tissue transfer. Am J Otolaryngol 2018; 39:548-552. [PMID: 29908709 DOI: 10.1016/j.amjoto.2018.06.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 06/04/2018] [Accepted: 06/06/2018] [Indexed: 11/29/2022]
Abstract
PURPOSE To evaluate how the interval between radiation and salvage surgery for advanced laryngeal cancer with free tissue transfer reconstruction influences complication rates. MATERIALS AND METHODS This is a retrospective series of 26 patients who underwent salvage laryngectomy or laryngopharyngectomy with vascularized free tissue reconstruction (anterolateral thigh or radial forearm) following radiation or chemoradiation between 2012 and 2017 at a single academic center. The primary outcome was incidence of postoperative complications, including pharyngocutaneous fistula. Secondary outcomes included the need for a second procedure, time to resumption of oral feeding, feeding tube dependence, and hospital length of stay. RESULTS Salvage surgery was performed for persistence (7/26, 27%), recurrence/new primary (12/26, 46%), and dysfunctional larynges (7/26, 27%). Twenty-two (85%) defects were reconstructed with an anterolateral thigh free flap and 4/26 with a radial forearm free flap (15%). There were no flap failures. There were significantly more complications in patients undergoing surgery within 12 months of completion of radiation therapy (7/12, 58%) versus those undergoing surgery after 12 months (1/14, 7%; p = .02). Patients experiencing complications more often required a second procedure (4/7 vs. 0/1; p = .02), experienced a longer delay to initiation of oral diet (61 vs. 21 days; p = .04), and stayed in the hospital longer (28 vs. 9 days; p = .01). CONCLUSIONS Shorter intervals between definitive radiation and salvage laryngopharyngeal surgery with free tissue reconstruction increases postoperative complications, hospital length of stay, and the likelihood of feeding tube dependence. Reconstructive surgeons can use these findings to help guide preoperative patient counseling and assess postoperative risk.
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Affiliation(s)
- Eric J Formeister
- Department of Otolaryngology - Head and Neck Surgery, University of California, San Francisco, CA, USA
| | - A Sean Alemi
- Department of Otolaryngology - Head and Neck Surgery, University of California, San Francisco, CA, USA
| | - Ivan El-Sayed
- Department of Otolaryngology - Head and Neck Surgery, University of California, San Francisco, CA, USA
| | - Jonathan R George
- Department of Otolaryngology - Head and Neck Surgery, University of California, San Francisco, CA, USA
| | - Patrick Ha
- Department of Otolaryngology - Head and Neck Surgery, University of California, San Francisco, CA, USA
| | - P Daniel Knott
- Department of Otolaryngology - Head and Neck Surgery, University of California, San Francisco, CA, USA
| | - William R Ryan
- Department of Otolaryngology - Head and Neck Surgery, University of California, San Francisco, CA, USA
| | - Rahul Seth
- Department of Otolaryngology - Head and Neck Surgery, University of California, San Francisco, CA, USA
| | - Matthew L Tamplen
- Department of Otolaryngology - Head and Neck Surgery, University of California, San Francisco, CA, USA
| | - Chase M Heaton
- Department of Otolaryngology - Head and Neck Surgery, University of California, San Francisco, CA, USA.
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Xu MJ, Lazar AA, Garsa AA, Arron ST, Ryan WR, El-Sayed IH, George JR, Algazi AP, Heaton CM, Ha PK, Yom SS. Major prognostic factors for recurrence and survival independent of the American Joint Committee on Cancer eighth edition staging system in patients with cutaneous squamous cell carcinoma treated with multimodality therapy. Head Neck 2018. [DOI: 10.1002/hed.25114] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Affiliation(s)
- Melody J. Xu
- Department of Radiation Oncology; University of California San Francisco; San Francisco California
| | - Ann A. Lazar
- Department of Epidemiology and Biostatistics; University of California San Francisco; San Francisco California
| | - Adam A. Garsa
- Department of Radiation Oncology; University of California San Francisco; San Francisco California
| | - Sarah T. Arron
- Department of Dermatology; University of California San Francisco; San Francisco California
| | - William R. Ryan
- Department of Otolaryngology - Head and Neck Surgery; University of California San Francisco; San Francisco California
| | - Ivan H. El-Sayed
- Department of Otolaryngology - Head and Neck Surgery; University of California San Francisco; San Francisco California
| | - Jonathan R. George
- Department of Otolaryngology - Head and Neck Surgery; University of California San Francisco; San Francisco California
| | - Alain P. Algazi
- Department of Medicine; University of California San Francisco; San Francisco California
| | - Chase M. Heaton
- Department of Otolaryngology - Head and Neck Surgery; University of California San Francisco; San Francisco California
| | - Patrick K. Ha
- Department of Otolaryngology - Head and Neck Surgery; University of California San Francisco; San Francisco California
| | - Sue S. Yom
- Department of Radiation Oncology; University of California San Francisco; San Francisco California
- Department of Otolaryngology - Head and Neck Surgery; University of California San Francisco; San Francisco California
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Strohl MP, Wang SJ, Ha PK, George JR, Heaton CM, El-Sayed IH, Clair JMS, Ryan WR. Abstract 17: Patterns of neck nodal metastases and recurrence in human papilloma virus-associated oropharyngeal squamous cell carcinoma after neck dissection. Clin Cancer Res 2017. [DOI: 10.1158/1557-3265.aacrahns17-17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: The aim of this study is to address the paucity of data on the potentially unique patterns of neck nodal metastases in HPV-positive oropharyngeal squamous cell carcinoma (HPV+OPSCC).
Methods: The neck dissection (ND) specimens of varying levels of HPV+OPSCC patients at University of California-San Francisco from 2010-2016 were reviewed for the numbers and frequencies of clinically evident and occult nodes by neck level, and for those with extra-capsular spread (ECS). Smoking history (>10 pack-years), T status, and local, regional and distal recurrences were also assessed for possible associations with nodal metastatic behavior.
Results: Sixty HPV+OPSCC patients underwent primary site trans-oral robotic surgery and 65 NDs, of which 21 (32%) were elective. Forty-three (65%) NDs were in non-smokers. Overall, the mean number of positive nodes per ND was 2.5 (range 1-9). The frequencies of at least one pathologically positive node for neck levels 1b, 2, 2a, 2b, 3, 4, and 5 were 0% (0/41), 67.7% (44/65), 43% (23/53), 13% (7/53), 27.7% (18/65), 7% (4/54), and 8% (2/23), respectively. All positive level 5 positive nodes were clinically evident preoperatively. Five of 21 (24%) elective NDs had occult disease only in levels 2A, 2B, and 3, with a mean number of positive nodes of 1.8 (range 1-3). Three of 21 (14%) elective NDs had nodes with ECS. Six of 44 (13%) therapeutic NDs had occult nodes outside the known preoperative distribution in levels 2b, 3 and 4. There were no occult 2a nodes. Smoking history, primary site, and T status were not statistically significantly associated with a differing metastatic nodal behavior. Twenty-three of 60 and 18 of 60 patients underwent adjuvant radiation and adjuvant chemoradiation, respectively. Thirteen of the 19 patients who only underwent surgery had positive lymph nodes, of which five had N1 disease and four had N2b disease. All four of N2b disease patients refused adjuvant therapy and none have had a recurrence as of follow-up (mean 28 months, range 3-51). The overall mean follow-up was 29.1 months (range 2-76 months), with 72% of patients having at least 12 months. One of 65 (1.5%) NDs developed a neck recurrence in the skin overlying level 2 in a patient in the therapeutic ND cohort who had undergone chemoradiation for ECS. No undissected neck levels developed metastatic nodal disease. Two of 60 (3%) patients developed local recurrence. No patients developed distant metastases. One patient in the cohort died of an unrelated cause. There have been no cancer-related deaths.
Conclusions: For HPV+OPSCC, therapeutic NDs should encompass any levels bearing suspicious nodes and levels 2a, 2b, 3, and 4, while elective NDs should be performed and encompass at least levels 2a, 2b, and 3. ECS may be present in occult nodes. For HPV+OPSCC, these selective ND plans, followed by the indicated adjuvant treatment, is associated with a low neck recurrence rate.
Citation Format: Madeleine P. Strohl, Steven J. Wang, Patrick K. Ha, Jonathan R. George, Chase M. Heaton, Ivan H. El-Sayed, Jon Mallen St Clair, William R. Ryan. Patterns of neck nodal metastases and recurrence in human papilloma virus-associated oropharyngeal squamous cell carcinoma after neck dissection [abstract]. In: Proceedings of the AACR-AHNS Head and Neck Cancer Conference: Optimizing Survival and Quality of Life through Basic, Clinical, and Translational Research; April 23-25, 2017; San Diego, CA. Philadelphia (PA): AACR; Clin Cancer Res 2017;23(23_Suppl):Abstract nr 17.
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Affiliation(s)
| | | | - Patrick K. Ha
- 1University of California San Francisco, San Francisco, CA,
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Heaton CM, Yu K, Calkins S, George JR, Ryan WR, Wang SJ. Clinicopathologic characteristics and outcomes of recurrent oropharyngeal squamous cell carcinoma. Am J Otolaryngol 2016; 37:513-516. [PMID: 27522438 DOI: 10.1016/j.amjoto.2016.07.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Accepted: 07/17/2016] [Indexed: 10/21/2022]
Abstract
PURPOSE Positive p16 immunohistochemical staining is predictive of improved survival and response to treatment. The purpose of this study is to determine the clinicopathologic characteristics and outcomes of patients with p16+ oropharynx cancer who fail initial treatment. MATERIALS AND METHODS Case series including all patients with recurrent oropharyngeal squamous cell carcinoma from 2002 to 2014. RESULTS Forty patients met inclusion criteria. Thirty-one (77.5%) tumors were p16+ and 9 (22.5%) were p16-. There was no difference in T/M stage at diagnosis; more patients with p16+ tumors presented initially with ≥N2 disease (p=0.04). Regional and/or metastatic recurrence was more common in the p16+ group as compared to the p16- group - 71% vs 22.2%, p=0.003. Outcomes for both groups were poor - 67.7% p16+ and 44.4% p16- patients died from disease. CONCLUSIONS Compared to p16- recurrent tumor patients, p16+ recurrent tumor patients were more likely to experience regional or distant metastatic recurrence. Overall outcomes for both p16+ and p16- recurrent oropharynx tumors were poor.
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Shugard E, Chen J, Quivey JM, Glastonbury CM, Khanafshar E, Garsa AA, George JR, Yom SS. Does radiation dose matter in thyroid cancer?: Patterns of local-regional failure in recurrent and metastatic well-differentiated thyroid cancers treated with dose-painted intensity-modulated radiation therapy. J Med Imaging Radiat Oncol 2016; 60:560-7. [PMID: 27020481 DOI: 10.1111/1754-9485.12452] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Accepted: 02/26/2016] [Indexed: 11/28/2022]
Abstract
INTRODUCTION Due to complex multimodal treatments and a lengthy natural history of disease, the impact of radiation therapy for well-differentiated thyroid cancer (WDTC) is challenging to evaluate. We analysed the effect of dose escalation, as enabled by intensity-modulated radiation therapy (IMRT), on preventing local-regional failure (LRF) of microscopic and macroscopic WDTC. METHOD We performed a retrospective review of WDTC patients treated with IMRT from 1998-2011. Diagnostic imaging demonstrating first LRF was registered to the simulation CT containing the treated radiation isodose volumes. Areas of disease progression were contoured and the relationships of LRFs with isodose volumes were recorded. RESULTS Thirty patients had a median follow-up of 56 months (range = 1-139). Seventeen (57%) had gross residual, five (17%) had microscopic residual and eight (27%) had clear margins at the time of IMRT. Nine patients (30%) developed LRF, at a median time of 44 months (range = 0-116). Of these, six (67%) had been radiated to gross disease and one (11%) had microscopic residual. In the seven analysable cases, only one (14%) LRF occurred within the 70 Gy isodose volume. Marginal LRFs were: four (57%) outside 70 Gy, one (14%) outside 60 Gy and one (14%) outside 50 Gy. All but one recurrence (86%) occurred in the perioesophageal region. CONCLUSIONS Local-regional failure was seen most in patients who had gross disease at the time of IMRT, almost always occurred outside of the 70 Gy volume and was frequently in the area of oesophageal sparing. Meticulous surgical dissection, especially in the perioesophageal region, should be prioritised to prevent long-term LRF.
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Affiliation(s)
- Erin Shugard
- Department of Radiation Oncology, University of California, San Francisco, California, USA
| | - Josephine Chen
- Department of Radiation Oncology, University of California, San Francisco, California, USA
| | - Jeanne M Quivey
- Department of Radiation Oncology, University of California, San Francisco, California, USA
| | | | - Elham Khanafshar
- Department of Pathology, University of California, San Francisco, California, USA
| | - Adam A Garsa
- Department of Radiation Oncology, University of California, San Francisco, California, USA
| | - Jonathan R George
- Department of Otolaryngology - Head and Neck Surgery, University of California, San Francisco, California, USA
| | - Sue S Yom
- Department of Radiation Oncology, University of California, San Francisco, California, USA
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George JR, Henderson YC, Williams MD, Roberts DB, Hei H, Lai SY, Clayman GL. Association of TERT Promoter Mutation, But Not BRAF Mutation, With Increased Mortality in PTC. J Clin Endocrinol Metab 2015; 100:E1550-9. [PMID: 26461266 PMCID: PMC4667158 DOI: 10.1210/jc.2015-2690] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
CONTEXT Papillary thyroid carcinoma (PTC) carrying the BRAF mutation has been reported to be associated with high recurrence and potentially increased mortality. PTC carrying the TERT promoter mutation has been associated with older age, recurrence, and aggressive disease. OBJECTIVE The objective of this study was to determine the association of BRAF and TERT promoter gene alterations with recurrence and survival in a high-risk population. DESIGN Genomic DNA was analyzed for the BRAF mutation from 256 persistent/recurrent PTC (p/rPTC; 202 new, 54 previously reported) and for the TERT promoter mutation and polymorphism (242 p/rPTC). Two-tailed Fisher exact tests or the Pearson χ(2) test were performed for the associations between mutations and other variables. Overall and disease-free survivals were compared by log rank tests on Kaplan-Meier plots and by Cox regression analysis. TERT promoter constructs were tested in PTC cell lines to determine their activities in these cells. RESULTS BRAF V600E mutation was identified in 235 of 256 (91.8%), TERT promoter mutation at -124 was detected in 77 of 242 (31.8%), and TERT promoter polymorphism at -245 was found in 113 of 242 (46.7%) p/rPTC patients. A significant difference in survival was found in p/rPTC patients with the TERT promoter mutation, which also displayed increased activity in vitro as compared to the nonmutated promoter sequence. No association was noted between the BRAF mutation or TERT promoter polymorphism and recurrence or survival. A drawback of our study could be the limited number of patients with nonmutated BRAF (21 of 256 [8.2%]). CONCLUSIONS Mutation in the TERT promoter, but not in BRAF, was associated with decreased survival in 19 (24.7%) p/rPTC patients who died of disease and in 38 (49.4%) p/rPTC patients who died at last contact. The presence or absence of the BRAF mutation and TERT promoter polymorphism, however, was not significantly correlated with survival.
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Couch ME, Dittus K, Toth MJ, Willis MS, Guttridge DC, George JR, Chang EY, Gourin CG, Der-Torossian H. Cancer cachexia update in head and neck cancer: Pathophysiology and treatment. Head Neck 2015; 37:1057-72. [PMID: 24634283 DOI: 10.1002/hed.23696] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/11/2014] [Indexed: 01/10/2023] Open
Abstract
The pathophysiology of cancer cachexia remains complex. A comprehensive literature search was performed up to April 2013 using PubMed, the Cochrane Library, Cumulative Index to Nursing and Allied Health Literature, and the Google search engine. In this review, we focus on the different mediators of impaired anabolism and upregulated catabolism that alter the skeletal muscle homeostasis resulting in the wasting of cancer cachexia. We present recent evidence of targeted treatment modalities from clinical trials along with their potential mechanisms of action. We also report on the most current evidence from randomized clinical trials using multimodal treatments in patients with cancer cachexia, but also the evidence from head and neck cancer-specific trials. A more complete understanding of the pathophysiology of the syndrome may lead to more effective targeted therapies and improved outcomes for patients.
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Affiliation(s)
- Marion E Couch
- Division of Otolaryngology-Head and Neck Surgery, Department of Surgery, Vermont Cancer Center, University of Vermont, College of Medicine, Burlington, Vermont
| | - Kim Dittus
- Division of Hematology-Oncology, Department of Medicine, Vermont Cancer Center, University of Vermont, College of Medicine, Burlington, Vermont
| | - Michael J Toth
- Department of Molecular Physiology and Biophysics, University of Vermont, College of Medicine, Burlington, Vermont
| | - Monte S Willis
- Department of Pathology and Laboratory Medicine, McAllister Heart Institute, University of North Carolina, Chapel Hill, North Carolina
| | - Denis C Guttridge
- Department of Molecular Virology, Immunology, and Medical Genetics, Ohio State University, Columbus, Ohio
| | - Jonathan R George
- Department of Otolaryngology - Head and Neck Surgery, University of California, San Francisco, California
| | - Eric Y Chang
- University of Vermont, College of Medicine, Burlington, Vermont
| | - Christine G Gourin
- Department of Otolaryngology - Head and Neck Surgery, Johns Hopkins Hospital, Baltimore, Maryland
| | - Hirak Der-Torossian
- Division of Otolaryngology-Head and Neck Surgery, Department of Surgery, Vermont Cancer Center, University of Vermont, College of Medicine, Burlington, Vermont
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Couch ME, Dittus K, Toth MJ, Willis MS, Guttridge DC, George JR, Barnes CA, Gourin CG, Der-Torossian H. Cancer cachexia update in head and neck cancer: Definitions and diagnostic features. Head Neck 2014; 37:594-604. [DOI: 10.1002/hed.23599] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2013] [Revised: 10/21/2013] [Accepted: 01/07/2014] [Indexed: 11/11/2022] Open
Affiliation(s)
- Marion E. Couch
- Division of Otolaryngology - Head and Neck Surgery; Department of Surgery; Vermont Cancer Center; University of Vermont, College of Medicine; Burlington Vermont
| | - Kim Dittus
- Division of Hematology - Oncology; Department of Medicine; Vermont Cancer Center; University of Vermont, College of Medicine; Burlington Vermont
| | - Michael J. Toth
- Department of Molecular Physiology and Biophysics; University of Vermont, College of Medicine; Burlington Vermont
| | - Monte S. Willis
- Department of Pathology and Laboratory Medicine; McAllister Heart Institute; University of North Carolina; Chapel Hill North Carolina
| | - Denis C. Guttridge
- Department of Molecular Virology; Immunology; and Medical Genetics; Ohio State University; Columbus Ohio
| | - Jonathan R. George
- Department of Otolaryngology - Head and Neck Surgery; University of California; San Francisco California
| | - Christie A. Barnes
- Division of Otolaryngology - Head and Neck Surgery; Department of Surgery; Vermont Cancer Center; University of Vermont, College of Medicine; Burlington Vermont
| | - Christine G. Gourin
- Department of Otolaryngology - Head and Neck Surgery; Johns Hopkins University; Baltimore Maryland
| | - Hirak Der-Torossian
- Division of Otolaryngology - Head and Neck Surgery; Department of Surgery; Vermont Cancer Center; University of Vermont, College of Medicine; Burlington Vermont
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21
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Affiliation(s)
- Jonathan R. George
- Department of Otolaryngology–Head and Neck Surgery, School of Medicine, University of California, San Francisco
| | - Sue S. Yom
- Department of Radiation Oncology, School of Medicine, University of California, San Francisco
| | - Steven J. Wang
- Department of Otolaryngology–Head and Neck Surgery, School of Medicine, University of California, San Francisco
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George JR, Chung S, Nielsen I, Goldberg AN, Miller A, Kezirian EJ. Comparison of drug-induced sleep endoscopy and lateral cephalometry in obstructive sleep apnea. Laryngoscope 2012; 122:2600-5. [PMID: 23086863 DOI: 10.1002/lary.23561] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2012] [Revised: 05/06/2012] [Accepted: 06/11/2012] [Indexed: 11/11/2022]
Abstract
OBJECTIVES/HYPOTHESIS To evaluate the association between findings from drug-induced sleep endoscopy (DISE) and lateral cephalometry in obstructive sleep apnea (OSA) STUDY DESIGN: Cross-sectional. METHODS This was a consecutive series of subjects with OSA who underwent DISE and lateral cephalometry. DISE findings were characterized according to the region/degree of obstruction as well as the VOTE classification (velum, oropharyngeal lateral walls, tongue, and epiglottis). The primary measurements from lateral cephalometry images were sella-nasion-point A angle, sella-nasion-point B angle, distance from the posterior nasal spine-tip of palate, posterior airway space, and mandibular plane to hyoid (MPH) distance, although additional airway measurements were taken. Descriptive statistics summarized DISE and lateral cephalometry findings, and χ(2) and t tests examined potential associations between their findings. RESULTS Among the 55 subjects, most demonstrated velum-related obstruction, although obstruction related to other structures was also common. Lateral cephalometry findings were within population norms with the exception of an increased MPH and decreased airway 4 and airway 5 measurements. There was little association between DISE and lateral cephalometry findings, although significant associations were identified between tongue-related obstruction and airway measurements posterior to the tongue base. CONCLUSIONS DISE and lateral cephalometry are largely distinct airway evaluation techniques in OSA. The use of these techniques remains complementary.
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Affiliation(s)
- Jonathan R George
- Department of Otolaryngology-Head and Neck Surgery, School of Medicine, Texas, USA
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Richey LM, George JR, Couch ME, Kanapkey BK, Yin X, Cannon T, Stewart PW, Weissler MC, Shores CG. Defining cancer cachexia in head and neck squamous cell carcinoma. Clin Cancer Res 2008; 13:6561-7. [PMID: 18006755 DOI: 10.1158/1078-0432.ccr-07-0116] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE Cancer cachexia is a devastating and understudied illness in patients with head and neck squamous cell carcinoma (HNSCC). The primary objective was to identify clinical characteristics and serum levels of cytokines and cachexia-related factors in patients with HNSCC. The secondary objective was to detect the occurrence of cytokine and cachexia-related factor gene expression in HNSCC tumors. EXPERIMENTAL DESIGN For the primary objective, cross-sectional data were obtained from prospectively recruited patients identified as cachexia cases and matching cachexia-free controls. For the secondary objective, a retrospective cohort design with matched controls was used. RESULTS Clinical characteristics associated with cancer cachexia in HNSCC were T(4) status (P = 0.01), increased C-reactive protein (P = 0.01), and decreased hemoglobin (P < 0.01). Exploratory multiplex analysis of serum cytokine levels found increased interleukin (IL)-6 (P = 0.04). A highly sensitive ELISA confirmed the multiplex result for increased IL-6 in cachectic patients (P = 0.02). Quality of life was substantially reduced in patients with cachexia compared with noncachectic patients (P < 0.01). All tumors of HNSCC patients both with and without cachexia expressed RNA for each cytokine tested and the cachexia factor lipid-mobilizing factor. There were no statistically significant differences between the cytokine and cachexia factor RNA expression of cachectic and noncachectic patients (each P > 0.05). No tumors expressed the cachexia factor proteolysis-inducing factor. CONCLUSION We have identified clinical characteristics and pathophysiologic mechanisms associated with cancer cachexia in a carefully defined population of patients with HNSCC. The data suggest that the acute-phase response and elevated IL-6 are associated with this complex disease state. We therefore hypothesize that IL-6 may represent an important therapeutic target for HNSCC patients with cancer cachexia.
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Affiliation(s)
- Luke M Richey
- Doris Duke Clinical Research Fellowship, Verne S. Caviness General Clinical Research Center, and Department of Otolaryngology-Head and Neck Surgery, University of North Carolina School of Medicine, Chapel Hill, NC 27599, USA
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Cannon TY, Guttridge D, Dahlman J, George JR, Lai V, Shores C, Bužková P, Couch ME. The Effect of Altered Toll-like Receptor 4 Signaling on Cancer Cachexia. ACTA ACUST UNITED AC 2007; 133:1263-9. [DOI: 10.1001/archotol.133.12.1263] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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25
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Richey LM, Shores CG, George JR, Lee SCS, Weissler MC. P071: Salvage Surgery Efficacy in Chemoradiation Nonresponders. Otolaryngol Head Neck Surg 2006. [DOI: 10.1016/j.otohns.2006.06.1103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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26
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Turgeon SM, Auerbach EA, Duncan-Smith MK, George JR, Graves WW. The delayed effects of DTG and MK-801 on latent inhibition in a conditioned taste-aversion paradigm. Pharmacol Biochem Behav 2000; 66:533-9. [PMID: 10899366 DOI: 10.1016/s0091-3057(00)00223-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The delayed effects of phencyclidine (PCP) have been shown to disrupt latent inhibition (LI) in a conditioned taste-aversion paradigm. In an attempt to understand the mechanism of this disruption, the delayed effects of the selective sigma receptor agonist 1,3-Di(2-tolyl)guanidine (DTG) and the selective NMDA receptor antagonist MK-801 on latent inhibition were assessed in the same paradigm. Water-deprived male rats were allowed access to either water (nonpreexposed; NPE) or 5% sucrose (preexposed; PE) for 30 min on 2 consecutive days. On the third day, animals were allowed access to sucrose and subsequently injected with lithium chloride. On the forth day, animals were allowed access to both sucrose and water. LI was assessed by comparing the percent sucrose consumed in PE and NPE groups on the fourth day. DTG (1.0, 5.0, or 10.0 mg/kg), MK-801 (0.5, 1.0, or 2.0 mg/kg), or vehicle was administered IP 20 h before preexposure (days 1 and 2) and conditioning (day 3). In vehicle-treated groups, PE animals consumed a significantly higher percent sucrose on the test day than NPE animals, indicating the presence of LI. DTG (10.0 mg/kg) and MK-801 (2.0 mg/kg) decreased the percent sucrose consumed by animals in the PE group to the level observed in the NPE group, indicating disrupted LI. However, this dose of MK-801 was found to produce a decrease in percent sucrose consumed in PE animals not treated with lithium chloride, indicating that the decrease observed in the LI paradigm could be due to MK-801-induced decrease in taste preference for sucrose rather than a disruption of LI. Lower doses of MK-801 that did not produce a decrease in taste preference for sucrose did not significantly disrupt LI. None of the doses of DTG tested altered taste preference for sucrose. These data suggest a role for sigma receptors in the previously observed PCP-induced disruption of LI. Published by Elsevier Science Inc., 2000
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Affiliation(s)
- S M Turgeon
- Department of Psychology, Amherst College, Amherst, MA 01002, USA
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Luo CC, Downing RG, Dela Torre N, Baggs J, Hu DJ, Respess RA, Candal D, Carr L, George JR, Dondero TJ, Biryahwaho B, Rayfield MA. The development and evaluation of a probe hybridization method for subtyping HIV type 1 infection in Uganda. AIDS Res Hum Retroviruses 1998; 14:691-4. [PMID: 9618081 DOI: 10.1089/aid.1998.14.691] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
We developed a method for large-scale screening of HIV-1 genotypic variation based on DNA probe hybridization. Nested PCR amplifications were performed to generate fragments in the env C2-V3 region and also in the gp41 region, which encompasses the immunodominant domain. The proviral DNA sequences were derived from 68 samples and phylogenetically analyzed. For comparison, the C2-V3 fragment was used in DNA probe hybridization to rapidly determine the infecting HIV subtype. The hybridizing probes were designed on the basis of the two most prevalent subtypes in Uganda, A and D. The results were compared to evaluate the feasibility of using this hybridization method for large-scale genotypic screening. Sequence analysis of the 68 amplified PCR fragments showed that 39 were subtype A and 29 were subtype D. The results of DNA hybridization to the amplified products with A and D subtype-specific probes were more than 90% concordant with the subtypes determined by sequence analysis. Our findings suggest that probe hybridization with subtype-specific probes is effective for large-scale screening of HIV-infected populations. Application of this method will significantly reduce the time needed for large, population-based investigations.
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Affiliation(s)
- C C Luo
- Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA.
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George JR, Davis GG. Comparison of anti-epileptic drug levels in different cases of sudden death. J Forensic Sci 1998; 43:598-603. [PMID: 9608695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Sudden unexplained death syndrome (SUDS) in epilepsy is identified as death in an epileptic individual with no anatomic cause found at autopsy. SUDS appears to be associated with subtherapeutic levels of anticonvulsants. Sudden death with no demonstrable cause at autopsy accounts for 5% to 30% of deaths in epileptic individuals. In the majority of cases, however, the cause of death in epileptic individuals can be demonstrated at autopsy. We examined the anti-epileptic drug concentrations in decedents who died as a direct result of epilepsy and compared these findings with those from a control population of epileptic patients who died suddenly due to some unrelated cause. This retrospective study was conducted on all deaths involving patients with epilepsy examined at the Jefferson County Coroner/Medical Examiner office from 1986-95. Out of 115 total cases the underlying cause of death was epilepsy in 60 cases--52 cases of SUDS and 8 deaths caused by an accident precipitated by a seizure. In 44 cases death was unrelated to the decedent's epilepsy. In 11 cases the contribution of epilepsy to death could not be determined. Published articles on SUDS report subtherapeutic anti-epileptic medication levels in 63% to 94% of cases. We found subtherapeutic drug levels in 69% of the 52 cases of SUDS, in 75% of the 8 cases where a seizure precipitated an accident causing death, and in 34% of the control population. The incidence of subtherapeutic anticonvulsants is significantly greater in patients dying as a direct result of their epilepsy than in those dying of an unrelated cause.
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Affiliation(s)
- J R George
- University of Alabama at Birmingham Medical School, USA
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Segurado A, Granade T, Parekh B, Nunez CA, Meza R, Amador L, Terrell S, George JR, Lal RB. Presence of HTLV-I and HTLV-II infection in Honduras. J Acquir Immune Defic Syndr Hum Retrovirol 1997; 16:308. [PMID: 9402080 DOI: 10.1097/00042560-199712010-00014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Candal DH, Pau CP, Luo CC, Granade T, Stetler H, Amador L, Meza R, Nunez C, Schochetman G, George JR. Genetic variability of HIV type 1 in Honduras. AIDS Res Hum Retroviruses 1997; 13:1349-50. [PMID: 9339852 DOI: 10.1089/aid.1997.13.1349] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Affiliation(s)
- D H Candal
- Centers for Disease Control and Prevention, Public Health Service, U.S. Department of Health and Human Services, Atlanta, Georgia 30333, USA
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Gonzalez L, Boyle RW, Zhang M, Castillo J, Whittier S, Della-Latta P, Clarke LM, George JR, Fang X, Wang JG, Hosein B, Wang CY. Synthetic-peptide-based enzyme-linked immunosorbent assay for screening human serum or plasma for antibodies to human immunodeficiency virus type 1 and type 2. Clin Diagn Lab Immunol 1997; 4:598-603. [PMID: 9302212 PMCID: PMC170605 DOI: 10.1128/cdli.4.5.598-603.1997] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A synthetic-peptide-based enzyme-linked immunosorbent assay (EIA) capable of screening for antibodies to both human immunodeficiency virus type 1 (HIV-1) and HIV-2 has been developed for use in blood banks and diagnostic laboratories. Microtiter wells are coated with two synthetic peptides, one corresponding to the highly conserved envelope region of HIV-1 and another corresponding to the conserved envelope region of HIV-2. Overall, sensitivity was 100% in 303 individuals diagnosed with AIDS and 96 individuals diagnosed with AIDS-related complex, 14.8% in a study of 500 high-risk group members, 99.9% in 600 EIA repeatedly reactive (RR)-HIV-1 Western blot (WB)-positive repository specimens, and 100% for 222 geographically diverse HIV-1 specimens and 216 confirmed HIV-2-positive specimens evaluated. The specificity was determined to be 99.72% for a total of 13,004 serum and plasma samples from random volunteer donors evaluated across five blood banks. Forty donors who were found to be EIA RR-WB indeterminate but nonreactive on the United Biomedical, Inc., test (UBI HIV 1/2 EIA) were prospectively followed as an additional measure of specificity. None of the 40 low-risk cases evolved into a positive WB pattern at follow-up. The sensitivity and specificity of this new assay are comparable to those of other Food and Drug Administration-licensed HIV-1 and HIV-1-HIV-2 assays that are currently available in the United States. The UBI HIV 1/2 EIA affords laboratories another choice in the detection of antibodies for HIV-1 and HIV-2 with a test based on an alternative antigen format.
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Affiliation(s)
- L Gonzalez
- United Biomedical, Inc., Hauppauge, New York 11788, USA
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32
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Abstract
Research has demonstrated that oral mucosal transudate (OMT), a serum-derived fluid that enters saliva from the gingival crevice and across oral mucosal surfaces, can be preferentially concentrated by a novel collecting system to yield detectable levels of immunoglobulins (i.e., IgG and IgM antibodies) against various bacterial and viral diseases. Assays based on OMT can aid in the diagnosis of disease and in the management of therapeutic drugs. A reliable and accurate OMT-based test to detect human immunodeficiency virus (HIV) antibodies is commercially available. Additional tests based on similar technologies may aid in the diagnosis of viral hepatitis, measles, mumps, and rubella as well as in monitoring levels of therapeutic drugs such as theophylline. The future use of OMT-based testing will likely increase because of the inherent advantages of this technology: convenience; avoidance of inadvertent transmission of blood-borne pathogens; ease of use in pediatric and geriatric populations; as well as the potential for blood-free home and workplace collection of patient samples.
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Affiliation(s)
- J R George
- Epitope, Inc., Beaverton, Oregon 97008-7108, USA
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Stetler HC, Granade TC, Nunez CA, Meza R, Terrell S, Amador L, George JR. Field evaluation of rapid HIV serologic tests for screening and confirming HIV-1 infection in Honduras. AIDS 1997; 11:369-75. [PMID: 9147429 DOI: 10.1097/00002030-199703110-00015] [Citation(s) in RCA: 73] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
OBJECTIVE To determine the ability of simple, rapid tests to identify HIV-1 antibody-positive specimens in field settings using the World Health Organization's (WHO) alternative testing strategies. DESIGN Three-phase evaluation of simple, rapid assays using banked specimens and prospectively collected serum specimens at regional hospitals and rural clinics. METHODS Seven test (Retrocell, Genie, HIVCHEK, SUDS HIV-1, Testpack, Serodia HIV-1, and HIV-1/2 RTD) were evaluated and results compared with standard enzyme immunoassay (EIA) and Western blot results (phase 1). Further evaluation consisted of prospective testing of routine specimens at regional (phase 2; n = 900) and rural, peripheral laboratories (phase 3; n = 1266) throughout Honduras with selected assays. RESULTS Sensitivity and specificity were calculated for each assay and combination of assays for each phase to evaluate the effectiveness of the WHO alternative testing strategies. All tests in all phases were > 99% sensitive after correcting for technical errors, with two exceptions (SUDS, phase 1; HIVCHEK, phase 3). In phase 3, where the testing algorithm was diagnostic, several combinations of assays were 100% sensitive and specific using WHO strategy II or III. For the Honduras Ministry of Health, the combination of Retrocell and Genie was found to be equally sensitive, more specific (no indeterminate results), and less expensive than EIA/Western blot. CONCLUSION Combinations of rapid, simple HIV antibody assays provide sensitivity and specificity performance comparable to EIA/Western blot. Application of these combinations in the WHO alternative testing strategies provides an inexpensive and effective method of determining HIV status. Assay combinations using these strategies can be easily performed in small, rural laboratories and have been implemented in routine HIV screening in Honduras.
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Affiliation(s)
- H C Stetler
- Division of AIDS, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA
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Gallo D, George JR, Fitchen JH, Goldstein AS, Hindahl MS. Evaluation of a system using oral mucosal transudate for HIV-1 antibody screening and confirmatory testing. OraSure HIV Clinical Trials Group. JAMA 1997; 277:254-8. [PMID: 9005276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE To determine accuracy of a human immunodeficiency virus type 1 (HIV-1) antibody testing system using a device to collect and stabilize oral mucosal transudate (OMT), a fluid with increased levels of IgG; an enzyme immunoassay (EIA) screening test optimized for OMT; and a Western blot confirmatory test designed for use with OMT. DESIGN The OMT specimens were tested by EIA and, if indicated, confirmatory Western blot according to a standard testing algorithm. The OMT results were compared with true HIV status as determined by serum testing and/or clinical diagnosis. PATIENTS Specimens from 3570 subjects (2382 at low risk, 698 at high risk, 242 with acquired immunodeficiency syndrome [AIDS], and 248 "nonspecificity" [persons with diseases associated with an increased frequency of false-positive results in HIV testing]) were collected at 11 geographically diverse sites (including blood banks, public health clinics, general medical clinics, HIV clinics, sexually transmitted disease clinics, and a hemophilia center) in the United States. MAIN OUTCOME MEASURES Overall accuracy of testing OMT for HIV-1 antibodies compared with true HIV-1 antibody status; sensitivity and specificity of OMT EIA and Western blot. RESULTS Sensitivity of OMT EIA testing in 673 true-positive subjects was 99.9% (672/673). The OMT Western blot results in the 673 true-positive subjects were positive in 665 and indeterminate in 8. The EIA followed by Western blot (if EIA was repeatedly reactive) yielded a negative result in 99.9% (2893/2897) of OMT samples from true negatives and an indeterminate result in 4. The OMT testing system provided the correct result or would trigger appropriate follow-up testing in 3569 (>99.9%) of 3570 cases. CONCLUSION HIV-1 antibody testing of OMT samples is a highly accurate alternative to serum testing.
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Affiliation(s)
- D Gallo
- Viral and Rickettsial Disease Laboratory, California State Department of Health Services, Berkeley, USA
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Pau CP, Hu DJ, Spruill C, Schable C, Lackritz E, Kai M, George JR, Rayfield MA, Dondero TJ, Williams AE, Busch MP, Brown AE, McCutchan FE, Schochetman G. Surveillance for human immunodeficiency virus type 1 group O infections in the United States. Transfusion 1996; 36:398-400. [PMID: 8693502 DOI: 10.1046/j.1537-2995.1996.36596282582.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Reports that the human immunodeficiency virus type 1 (HIV-1) group O variants are not reliably detected by some commercial diagnostic tests have raised concerns about the sensitivity of existing screening tests, especially with regard to blood safety. Although it is unlikely that these divergent strains are prevalent in North America, systematic, continuous surveillance is needed to monitor the potential spread of HIV variants into that region. STUDY DESIGN AND METHODS Stored serum samples (n = 1072) from both high- and low-risk population groups at several sites in the United States and Puerto Rico were tested by peptide enzyme immunoassays specific for the prototypic HIV-1 group O strains, MVP5180 and ANT70. RESULTS None of the 1072 samples examined had peptide reactivity that was consistent with HIV-1 group O infection. CONCLUSION While no evidence of specific HIV-1 group O (MVP5180 or ANT70) infection was found in this study, the sensitivity of current tests has not been fully evaluated against the wide range of genetic variation of HIV. Therefore, it is important to continue active surveillance for HIV-1 and HIV type 2 strains, to characterize any divergent strains, and to judiciously modify tests to correct for any deficiencies in sensitivity.
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Affiliation(s)
- C P Pau
- Division of HIV/AIDS, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
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Hu DJ, Dondero TJ, Rayfield MA, George JR, Schochetman G, Jaffe HW, Luo CC, Kalish ML, Weniger BG, Pau CP, Schable CA, Curran JW. The emerging genetic diversity of HIV. The importance of global surveillance for diagnostics, research, and prevention. JAMA 1996; 275:210-6. [PMID: 8604174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The discovery of highly divergent strains of human immunodeficiency virus (HIV) not reliably detected by a number of commonly used diagnostic tests has underscored the need for effective surveillance to track HIV variants and to direct research and prevention activities. Pathogens such as HIV that mutate extensively present significant challenges to effective monitoring of pathogens and to disease control. To date, relatively few systematic large-scale attempts have been made to characterize and sequence HIV isolates. For most of the world, including the United States, information on the distribution of HIV strains among different population groups is limited. We describe herein the implications resulting from the rapid evolution of HIV and the need for systematic surveillance integrated with laboratory science and applied research. General surveillance guidelines are provided to assist in identifying population groups for screening, in applying descriptive epidemiology and systematic sampling, and in developing and evaluating efficient laboratory testing algorithms. Timely reporting and dissemination of data is also an important element of surveillance efforts. Ultimately, the success of global surveillance network depends on collaboration and on coordination of clinical, laboratory, and epidemiologic efforts.
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Affiliation(s)
- D J Hu
- Division of HIV/AIDS Prevention, National Center for HIV, STD, and TB Prevention, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
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Massanga M, Ndoyo J, Hu DJ, Pau CP, Lee-Thomas S, Hawkins R, Senekian D, Rayfield MA, George JR, Zengais A, Yatere NN, Yossangang V, Samori A, Schochetman G, Dondero TJ. A highly heterogeneous HIV-1 epidemic in the Central African Republic. Emerg Infect Dis 1996; 2:222-4. [PMID: 8903234 PMCID: PMC2626791 DOI: 10.3201/eid0203.960310] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Affiliation(s)
- M Massanga
- Ministère de la Santé Publique et de la Population, Central African Republic
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Kassler WJ, Haley C, Jones WK, Gerber AR, Kennedy EJ, George JR. Performance of a rapid, on-site human immunodeficiency virus antibody assay in a public health setting. J Clin Microbiol 1995; 33:2899-902. [PMID: 8576342 PMCID: PMC228603 DOI: 10.1128/jcm.33.11.2899-2902.1995] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Rapid, on-site human immunodeficiency virus (HIV) testing has the potential to improve the delivery of prevention services in publicly funded counseling and testing sites. The Single Use Diagnostic System (SUDS) HIV-1 is the only rapid enzyme immunoassay (EIA) approved for diagnostic use in the United States. To evaluate the feasibility of using SUDS in public clinics and to validate the test's performance in a public health laboratory, we conducted blinded SUDS testing on plasma sent for HIV testing. From 19 March through 30 June 1993, 1,923 consecutive samples from a sexually transmitted diseases clinic and an HIV counseling and testing clinic were tested on site with SUDS. Tests done in the first two weeks with a malfunctioning centrifuge n = 402) and those done when there were excessively high temperatures in the laboratory (n = 53) were analyzed separately. Of 1,466 tests, 39 were positive by both SUDS and EIA (with Western blot [immunoblot] confirmation) and 7 were SUDS positive and EIA negative. Western blotting was used as the "gold standard" to adjudicate these discrepancies. There were no SUDS-negative and EIA-positive tests. Compared with that of EIA (with Western blot confirmation), the sensitivity of SUDS was 100% (95% confidence interval, 88.8 to 100%) and the specificity was 99.5% (95% confidence interval, 98.9 to 99.8%). The positive predictive value of SUDS was 88% in the STD clinic and 81% in the HIV counseling and testing clinic. There was a 7.7-fold increase in false positives, from 0.48 to 3.7%, when there was inadequate centrifugation and when the temperature exceeded the manufacturer's recommendations. Rapid, on-site HIV testing by the SUDS assay is feasible and practical in public health settings. The test can be performed accurately, at reasonable cost, and within the time frame of a typical clinic visit. Caution should be used, however, as two conditions adversely affected the accuracy of this test: inadequate specimen preparation and elevated temperature.
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Affiliation(s)
- W J Kassler
- Division of STD/HIV Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
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Fontenot JD, VanCott TC, Parekh BS, Pau CP, George JR, Birx DL, Zolla-Pazner S, Gorny MK, Gatewood JM. Presentation of HIV V3 loop epitopes for enhanced antigenicity, immunogenicity and diagnostic potential. AIDS 1995; 9:1121-9. [PMID: 8519447 DOI: 10.1097/00002030-199510000-00002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
OBJECTIVE To evaluate the immunological properties of a panel of human mucin MUC1/HIV V3 loop chimeras. DESIGN The immunodominant epitope of MUC1 (APDTR) was found to be structurally isomorphous with the tip of the principle neutralizing determinant (PND) of HIV-1 (MN) (GPGRA). A panel of 120 residue, six tandem repeat (TR) and 60 residue, three TR chimeric antigens were constructed in which the repeating MUC1 epitope is replaced by HIV-1 PND. Each 20 residue TR contains one PND epitope. The PND of HIV-1 is presented in the native beta-turn conformation at the crest of each repeating knob structure of the mucin-like protein. METHODS The antigenicity of the chimeric antigens were compared using enzyme-linked immunosorbent assay (ELISA) and HIV-infected patient sera. Structural effects of antibody-antigen interactions were determined using surface plasmon resonance, with human monoclonal antibodies, chimeric antigens and the cyclic and linear V3 loops. Immunogenicity of three versus six TR was measured in mice. RESULTS Nine residues of the HIV PND substituted into the mucin backbone were equivalent to the 36 residue cyclic V3 loop in ELISA. The 120 residue antigens induced high titer, immunoglobulin (Ig) M and IgG, and HIV-specific antibodies in mice. CONCLUSIONS MUC1/V3 chimeras efficiently detect HIV-specific antibodies in patient sera. Multivalent presentation of the PND is advantageous for higher affinity antibody-antigen interactions and for inducing HIV-specific IgM and IgG antibodies.
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Affiliation(s)
- J D Fontenot
- Theoretical Biology and Biophysics and Life Sciences Division, Los Alamos National Laboratory, New Mexico
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Weber JT, Janssen RS, George JR, Ward JW. The cost-effectiveness of voluntary counseling and testing of hospital patients for HIV. JAMA 1995; 274:129-30. [PMID: 7595999 DOI: 10.1001/jama.1995.03530020047028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Granade TC, Phillips SK, Parekh B, Pau CP, George JR. Oral fluid as a specimen for detection and confirmation of antibodies to human immunodeficiency virus type 1. Clin Diagn Lab Immunol 1995; 2:395-9. [PMID: 7583912 PMCID: PMC170167 DOI: 10.1128/cdli.2.4.395-399.1995] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Paired serum and oral fluid specimens (n = 287) were collected with the Omni-Sal device and were assayed for the presence of antibodies to human immunodeficiency virus type 1 (HIV-1). Enzyme immunoassays (EIAs)--Abbott 3A11, an Organon Teknika Corporation research-use-only test, and the Murex GACELISA--were used per the manufacturers' inserts or were modified slightly to accommodate the oral fluid specimens. Compared with serum Western blot (immunoblot) results, each EIA had a sensitivity of 100% and the specificities were 89.6% for the Abbott 3A11 EIA, 96.5% for the GACELISA, and 97.8% for the Organon Teknika Corporation EIA. Specificities based on specimens that were repeatedly reactive were 99.3% for all EIAs. A miniaturized Western blot technique used for confirmatory testing of both the serum and oral fluid specimens found 149 of the 287 samples to be HIV-1 antibody positive in both sample types. The Western blot banding patterns observed for the serum and oral fluid specimens were essentially identical. Immunoglobulin G concentrations were determined for all oral fluid specimens and ranged from < 0.5 to > 40.0 micrograms/ml. Immunoglobulin G concentrations did not correlate with the ability of any of the EIAs to detect HIV-1-specific antibody or with the ability of the modified Western blot to detect HIV-1 protein-specific antibodies.
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Affiliation(s)
- T C Granade
- Division of HIV/AIDS, Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA
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Fontenot JD, Gatewood JM, Mariappan SV, Pau CP, Parekh BS, George JR, Gupta G. Human immunodeficiency virus (HIV) antigens: structure and serology of multivalent human mucin MUC1-HIV V3 chimeric proteins. Proc Natl Acad Sci U S A 1995; 92:315-9. [PMID: 7816840 PMCID: PMC42869 DOI: 10.1073/pnas.92.1.315] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Molecular modeling and two-dimensional NMR techniques enable us to identify structural features in the third variable region (V3) loop of the human immunodeficiency virus (HIV) surface glycoprotein gp120, in particular the principal neutralizing determinant (PND), that remain conserved despite the sequence variation. The conserved structure of the PND is a solvent-accessible protruding motif or a knob, structurally isomorphous with the immunodominant knobs in the tandem repeat protein of human mucin 1 (MUC1) (a tumor antigen for breast, pancreatic, and ovarian cancer). We have replaced the mucin antigenic knobs by the PND knobs of the HIV MN isolate in a set of chimeric human MUC1/HIV V3 antigens. This produced multivalent HIV antigens in which PNDs are located at regular intervals and separated by extended mucin spacers. In this article we show by two-dimensional NMR spectroscopy that the multivalent antigens preserve the PNDs in their native structure. We also demonstrate by ELISA that the antigens correctly present the PNDs for binding to monoclonal antibodies or polyclonal antisera from HIV-infected patients.
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Affiliation(s)
- J D Fontenot
- Life Sciences Division, Los Alamos National Laboratory, NM 87545
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Pau CP, Kai M, Holloman-Candal DL, Luo CC, Kalish ML, Schochetman G, Byers B, George JR. Antigenic variation and serotyping of HIV type 1 from four World Health Organization-sponsored HIV vaccine sites. WHO Network for HIV Isolation and Characterization. AIDS Res Hum Retroviruses 1994; 10:1369-77. [PMID: 7888190 DOI: 10.1089/aid.1994.10.1369] [Citation(s) in RCA: 55] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Serologic reactivities of serum or plasma from 55 HIV-1 subjects in four countries--Brazil, Rwanda, Thailand, and Uganda--were examined by V3 peptide immunoassay. Forty-seven (85.5%) of the 55 specimens tested positive to the homologous peptide. A strong correlation between serotype (i.e., pattern of serologic reactivity with a panel of peptides) and genotype was not found. However, the V3 peptide immunoassays may be useful for epidemiologic studies to trace the distinctive HIV-1 strains from different geographic regions of the world. The serology data obtained may be useful for the development of effective V3-based vaccines.
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Affiliation(s)
- C P Pau
- Division of HIV/AIDS, Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, Atlanta, Georgia 30333
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Affiliation(s)
- T J Dondero
- Division of HIV/AIDS, Center for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia
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Khabbaz RF, Heneine W, George JR, Parekh B, Rowe T, Woods T, Switzer WM, McClure HM, Murphey-Corb M, Folks TM. Brief report: infection of a laboratory worker with simian immunodeficiency virus. N Engl J Med 1994; 330:172-7. [PMID: 8264739 DOI: 10.1056/nejm199401203300304] [Citation(s) in RCA: 114] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- R F Khabbaz
- Division of Viral and Rickettsial Diseases, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333
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St Louis ME, Pau CP, Nsuami M, Ou CY, Matela B, Kashamuka M, Brown C, George JR, Heyward WL. Lack of association between anti-V3 loop antibody and perinatal HIV-1 transmission in Kinshasa, Zaire, despite use of assays based on local HIV-1 strains. J Acquir Immune Defic Syndr (1988) 1994; 7:63-7. [PMID: 8263755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Maternal antibodies against the V3 loop principal neutralizing domain (PND) have been reported to protect against perinatal HIV-1 transmission. To study this association in an African city with a long-standing HIV epidemic and no established "consensus sequence" for the V3 loop region of gp120, we determined the DNA sequence for the V3 region of HIV-1 from 13 HIV-1-infected residents of Kinshasa, Zaire, and developed peptide enzyme immunoassays (EIAs) reflecting the V3 loop PND for those HIV-1 strains. Using the most broadly reactive locally derived V3 loop peptide in a limited-antigen EIA, there was no significant difference in the perinatal HIV-1 transmission risk between 64 women with anti-V3 loop antibody (transmission risk, 30%) and 104 women without anti-V3 loop antibody (transmission risk, 25%; p = 0.5); this finding was unchanged after we controlled for maternal AIDS and low birth weight. Although we used assays for V3 loop antibody based on local HIV-1 strains and evaluated a large number of mother-child pairs, we found no evidence that maternal anti-V3 loop PND antibody protects against perinatal HIV-1 transmission.
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Hersh BS, Popovici F, Jezek Z, Satten GA, Apetrei RC, Beldescu N, George JR, Shapiro CN, Gayle HD, Heymann DL. Risk factors for HIV infection among abandoned Romanian children. AIDS 1993; 7:1617-24. [PMID: 8286071 DOI: 10.1097/00002030-199312000-00012] [Citation(s) in RCA: 65] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
OBJECTIVE To determine risk factors for HIV infection among abandoned Romanian infants and children living in a public institution. METHODS A cross-sectional study was conducted in June 1990 among 101 children between 0 and 4 years of age living in an orphanage. Orphanage and hospital records were reviewed and a blood specimen for hepatitis B and HIV serologic testing obtained from each child. A case-control study was conducted using data from the cross-sectional study. Cases were HIV-positive children; one HIV-negative control, matched by age, was selected for each case. RESULTS Overall, 20 (20%) children were HIV-positive, 88 (87%) tested positive for antibody to hepatitis B core antigen, and 32 (32%) were hepatitis B surface antigen-positive. In the case-control study, HIV-positive children had received more therapeutic injections [mean, 280; median, 231] than age-matched HIV-negative children [mean; 142, median, 155; P = 0.02]. Cases were more likely than controls to have received over 200 lifetime injections (odds ratio, 5.7; 95% confidence interval, 1.2-32.7). Blood transfusions and mother-to-child transmission were excluded as routes of HIV transmission. By reviewing sterilization records and interviewing local health-care workers, we determined that needles and syringes were often re-used without proper disinfection in the orphanage. CONCLUSIONS These data provide strong epidemiologic evidence that indiscriminate injections with contaminated needles and syringes were responsible for HIV transmission in this population.
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Affiliation(s)
- B S Hersh
- Centers for Disease Control and Prevention, Division of HIV/AIDS, Atlanta, Georgia
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Parekh B, Shaffer N, Schochetman G, Coughlin RT, Hung CH, George JR. HIV-1 specific IgG capture enzyme immunoassay to study the dynamics of HIV-1 antibody and to diagnose HIV-1 infection in infants. NYC Perinatal HIV Transmission Collaborative Study Group. Ann N Y Acad Sci 1993; 693:268-71. [PMID: 8267275 DOI: 10.1111/j.1749-6632.1993.tb26279.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- B Parekh
- Centers for Disease Control, Atlanta, Georgia 30333
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George JR, Parekh BS, Shaffer N, Coughlin RT, Hung CH, Rogers M, Schochetman G. Detection of HIV-1 IgA by an IgA capture enzyme immunoassay for early diagnosis in infants. NYC Perinatal HIV Transmission Collaborative Study Group. Ann N Y Acad Sci 1993; 693:272-4. [PMID: 8267276 DOI: 10.1111/j.1749-6632.1993.tb26280.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- J R George
- Centers for Disease Control, Atlanta, Georgia 30333
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Abstract
OBJECTIVE To evaluate a combination of rapid tests as a strategy for screening and supplemental testing of serum for HIV-1 and/or HIV-2 antibodies. DESIGN Cross-sectional evaluation. SETTING Projet RETRO-CI, an AIDS research project in Abidjan, Côte d'Ivoire. METHODS Serum specimens were collected from 1000 consecutive women giving birth in an Abidjan maternal and child health centre and from 185 hospitalized patients. All serum specimens were tested for HIV-1 and HIV-2 antibodies by whole-virus enzyme immunoassay; repeatedly reactive specimens were further tested by virus-specific Western blot and synthetic peptide-based tests. This was the reference strategy against which the algorithm under evaluation was compared. All specimens were subsequently tested by a mixed (HIV-1 and HIV-2) recombinant antigen-based test (Abbott Testpack), followed, if positive, by a rapid synthetic peptide-based test (Genetic Systems Genie) as a supplemental test. RESULTS According to the reference strategy the prevalence of HIV-1 and/or HIV-2 infection was 13% among the pregnant women and 78% among the hospitalized patients. Compared with the reference strategy, the combination of rapid tests was associated with a sensitivity of 99.6%, a specificity of 99.9%, and positive and negative predictive values of 99.6 and 99.9%, respectively. Four per cent of HIV-2-positive and 1% of HIV-1-positive specimens were considered dually reactive by the rapid test combination. CONCLUSIONS Synthetic peptide-based tests provide an alternative to Western blots for supplemental testing for HIV-1 and HIV-2. This combination of rapid tests offers performance characteristics comparable to an enzyme immunoassay and Western blot-based strategy, without requiring running water, electricity, or a well-developed laboratory. High-quality serodiagnosis of HIV-1 and HIV-2 infections is possible at the most peripheral levels of the health-care system in developing countries, the limiting factors being the costs of tests and training of staff.
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