Τετάρτη 20 Ιουλίου 2022

Diagnostic Delay in Human Papillomavirus Negative Oropharyngeal Squamous Cell Carcinoma

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Diagnostic Delay in Human Papillomavirus Negative Oropharyngeal Squamous Cell Carcinoma

Delays in care related to evaluations by multiple providers and misdiagnosis prolonged time to diagnosis in HPV(−)OPSCC. Improved patient and provider education is necessary to expedite the diagnosis of HPV(−)OPSCC.


Objective

Failure to recognize symptoms of non-human papillomavirus-associated oropharyngeal squamous cell carcinoma (HPV(−)OPSCC) at presentation can delay diagnosis and treatment. We aim to identify patient factors and provider practice patterns that delay presentation and care in HPV(−)OPSCC.

Methods

Retrospective review at a tertiary care center. Patients with HPV(−)OPSCC receiving treatment from 2006 to 2016. Patients were excluded if their date of symptom onset or diagnosis was unknown after thorough review of the electronic medical record or their tissue was not tested for HPV or p16. Clinical data, workup, and care timelines were abstracted. Univariate and multivariable linear regressions were performed to determine associations between patient and provider factors and delays in care.

Results

Of 70 included patients, 52 (74%) were male and mean age was 60.5 (SD = 9.0). Median time to diagnosis was 69 days (IQR = 32–127 days), with a median latency of 30 days (IQR = 12–61 days) from symptom onset to first presentation and 19.5 days (IQR = 4–46 days) from the first presentation to diagnosis. Most patients visited at least 2 providers (n = 52, 74%) before diagnosis. Evaluation by 3 or more providers prior to diagnosis was associated with significant delays in diagnosis of nearly a year (357.7 days, p < 0.001) and being treated or prescribed analgesia prior to diagnosis was significantly associated with delays in diagnosis (p = 0.004) on univariate regression analysis.

Conclusions

Delays in care related to evaluations by multiple providers and misdiagnosis prolonged time to diagnosis in HPV(−)OPSCC. Improved patient and provider education is necessary to expedite the diagnosis of HPV(−)OPSCC.

Level of Evidence

Level 4 Laryngoscope, 2022

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A Comparative Study Assessing the Precision and Trueness of Digital and Printed Casts Produced From Several Intraoral and Extraoral Scanners in Full Arch and Short Span (3‐Unit FPD) Scanning: An In Vitro Study

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ABSTRACT

Purpose

: To compare precision and trueness of digital and printed casts produced from several intraoral and extraoral scanners in full arch and short span scanning.

Materials and Methods

: A fully dentate maxillary phantom cast was used to represent full arch scanning, and a mandibular phantom cast including posterior 3-unit fixed partial denture (FPD) preparations to represent short span scanning. Reference casts (RC) were fabricated and scanned 10 times by a reference extraoral scanner (Medit T510, Seoul, Korea) to provide reference digital casts (RD). RC was then scanned 10 times by 5 scanners: 2 intraoral scanners (Trios 3shape (Trios 3) and Dental Wings (DW)), and 3 extraoral scanners (3shape E3 (E3), S600 ARTI (S600), and Ceramill Map 600 (M600)). Digital STL files obtained from the 5 scanners were sent to a stereolithography 3D printer to fabricate printed casts. Trueness was obtained by comparing STL files of each digital/printed cast to the RC, while precision was obtained by comparing the digital/printed STL file of each scanner to the other files of same digital/printed group. The lower the precision and trueness values, the higher the accuracy of casts . Multivariate Analysis of Variance was performed to assess the association of precision and trueness with the type of scanner, type of cast, and scanning span.

Results

: There was a significant difference in precision and trueness of casts produced from different scanners (p <0.001). The lowest precision and trueness were demonstrated by casts produced from DW. Digital casts showed significantly higher precision and trueness compared to 3D printed casts (p <0.001). Regarding the scanning span, full arch scanning showed significantly lower precision and trueness than short span scanning (p <0.001).

Conclusions

: Extraoral scanners exhibited higher trueness and precision than intraoral scanners. Trios 3 showed comparable accuracy to that of the studied extraoral scanners in the case of short span scanning. DW was the least accurate scanner in all studied groups, while E3 showed the highest accuracy level among the mentioned scanners. Digital casts showed higher trueness and precision compared to 3D printed casts.

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Differential survival of potentially pathogenic, septicemia- and meningitis-causing E. coli across the wastewater treatment train

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Pediatric hematology providers’ contraceptive practices for female adolescents and young adults with sickle cell disease: A national survey

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Abstract

Background

Adolescent and young adult (AYA) women with sickle cell disease (SCD) have increased pregnancy-related health risks and are prescribed potentially teratogenic medications, yet limited data are available regarding pediatric SCD provider contraceptive practices. We aimed to assess pediatric hematology providers' beliefs, practices, motivators, and barriers for providing contraceptive care to female AYAs with SCD.

Methods

Guided by the Health Belief Model (HBM), we developed a 25-question, web-based survey to assess practices. Survey links were distributed nationwide to pediatric SCD and/or general hematology providers through their publicly available emails and by request to directors of U.S.-accredited Pediatric Hematology-Oncology fellowship programs for distribution to their SCD providers. Data analysis included descriptive statistics, chi-square analysis, and logistic regression.

Results

Of 177 respondents, 160 surveys meeting inclusion criteria were analyzed. Most providers reported counseling (77.5%) and referring female AYA patients for contraception (90.8%), but fewer reported prescribing contraception (41.8%). Proportionally fewer trainees provided counseling compared with established providers (54% vs. 85%, p < .001), with a similar trend for prescribing (p = .05). Prescription practices did not differ significantly by provider beliefs regarding potential teratogenicity of hydroxyurea. Key motivators included patient request and disclosure of sexual activity. Key barriers included inadequate provider training, limited visit time, and perceived patient/parent interest.

Conclusion

Provider contraceptive practices for female AYAs with SCD varied, especially by provider status. Health beliefs regarding teratogenic potential of hydroxyurea did not correlate with contraceptive practices. Clinical guidelines, provider training, and patient/parent decision-making tools may be tested to assess whether provider contraceptive practices could be improved.

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