Impact of COVID-19 pandemic on the number of otolaryngologic surgeries in Japan

OBJECTIVE

Previous studies show that the COVID-19 pandemic affected the number of surgeries performed. However, data on the association between the COVID-19 pandemic and otolaryngologic surgeries according to subspecialties are lacking. This study was performed to evaluate the impact of the COVID-19 pandemic on various types of otolaryngologic surgeries.

METHODS

We retrospectively identified patients who underwent otolaryngologic surgeries from April 2018 to February 2021 using a Japanese national inpatient database. We performed interrupted time-series analyses before and after April 2020 to evaluate the number of otolaryngologic surgeries performed. The Japanese government declared its first state of emergency during the COVID-19 pandemic in April 2020.

RESULTS

We obtained data on 348,351 otolaryngologic surgeries. Interrupted time-series analysis showed a significant decrease in the number of overall otolaryngologic surgeries in April 2020 (-3619 surgeries per month; 95% confidence interval, -5555 to -1683; p < 0.001). Removal of foreign bodies and head and neck cancer surgery were not affected by the COVID-19 pandemic. In the post-COVID-19 period, the number of otolaryngologic surgeries, except for ear and upper airway surgeries, increased significantly. The number of tracheostomies and peritonsillar abscess incisions did not significantly decrease during the COVID-19 pandemic.

CONCLUSION

The COVID-19 pandemic was associated with a decrease in the overall number of otolaryngologic surgeries, but the trend differed among subspecialties.

Risk of Head and Neck Cancer in Patients with Psoriasis: A Nationwide Population-based Study

An association between psoriasis and cancer risk has been suggested in prior studies, but few have focused on head and neck cancers. Using the Korean National Health Insurance Service database, the relevance between psoriasis and head and neck cancer risks was investigated in a cross-sectional study of 3,869,264 individuals over 20 years of age, who received general health examination in 2009 and were followed until 2020. Head and neck cancer incidence rates were compared between individuals with and without psoriasis, and contributing factors were analysed. The head and neck cancer risk was significantly increased in the psoriasis group compared with the non-psoriasis group (hazard ratio [HR] 1.36; 95% confidence interval [CI] 1.07-1.74; p = 0.01) after adjusting for age, sex, body mass index, income, smoking, alcohol, exercise, diabetes mellitus, hypertension and dyslipidaemia. The risk was especially elevated for nasopharyngeal (HR 2.04; 95% CI 1.12-3.70; p = 0.02) and salivary gland cancer (HR 1.96; 95% CI 1.08-3.56; p = 0.03). Alcohol consumption significantly influenced the risk, particularly for oropharyngeal and oral cavity cancer. Our study provides insights into the potential risks of head and neck cancer in patients with psoriasis, which could aid in refining patient management strategies.

A descriptive study on diagnostic timelines, and factors influencing delayed diagnosis among adult head and neck cancer patients at Uganda cancer institute

BACKGROUND

Many patients with head and neck cancer (HNC) often present with advanced disease. This may result from delay in deciding to seek care, delay in reaching the healthcare facility and or delay in accessing care in the healthcare facility. We therefore set out to determine the time to definitive diagnosis and factors associated with delayed diagnosis among patients with HNC at the Uganda Cancer Institute (UCI).

METHODS

A cross-sectional study was conducted at UCI, patients with HNC were recruited. An interviewer administered questionnaire was used to collect data on sociodemographic factors and clinical characteristics, including timelines in months, from symptom onset to deciding to seek care, to reaching the health care facility and to definitive diagnosis. Multivariate Poisson regression analysis was used to calculate odds ratios (ORs) for the factors of association with delayed diagnosis.

RESULTS

We recruited 160 HNC patients, and 134 patients were analyzed. The median age was 49.5 years (IQR 26.5), 70% (94 of 134) were male, 48% (69 of 134) had below secondary school education, 49% (65 of 134) had a household income < 54 USD. 56% (76 of 134) were sole bread winners, 67% (89 of 134) had good access road condition to the nearest health unit and 70% (91 of 134) presented with tumor stage 4. Median time from onset of symptoms to definitive diagnosis was 8.1 months (IQR 15.1) and 65% (87 of 134) of patients had delayed diagnosis. Good access roads (aOR: 0.26, p = 0.006), secondary school education (aOR: 0.17, p = 0.038), and household income > 136 USD (aOR: 0.27, p = 0.043) were associated with lower odds of delayed diagnosis. Being the sole bread winner (aOR: 2.15, p = 0.050) increased the odds of delayed diagnosis.

CONCLUSION

Most of HNC patients (65%) at UCI had delayed diagnosis. A national care pathway for individuals with suspected HNC should be established and consider rotation of Ear, Nose and Throat surgeons to underserved regions, to mitigate diagnostic delay.

Evaluating human papillomavirus testing, prevalence, and association with prognosis in head and neck squamous cell carcinoma by subsite: A national cancer database study

PURPOSE

To compare human papillomavirus (HPV) testing, prevalence, and association with prognosis between head and neck squamous cell carcinoma (HNSCC) subsites.

MATERIALS AND METHODS

This study utilized the National Cancer Database (NCDB) to identify patients diagnosed with HNSCC between 2010 and 2017. Rates of HPV testing, HPV-positivity, and changes in these rates over time were measured by subsite. The impact of HPV-positivity on overall survival across six head and neck subsites was assessed using multivariable-adjusted Cox proportional hazards analysis.

RESULTS

A total of 121,550 patients were included. Of this cohort, 87,575 (72.1%) were tested for HPV, with the oropharynx (55,049/64,158; 85.8%) displaying the highest rates of testing and the sinonasal tract (1519/2853; 53.2%) displaying the lowest testing rates. Of the 86,136 with a definitive result, 46,878 (54.4%) were HPV-positive, with the oropharynx (40,313/54,205; 74.4%) displaying the highest rates of HPV-positivity and the oral cavity (1818/11,505; 15.8%) displaying the lowest. HPV-positive malignancy was associated with significantly improved adjusted overall survival in the oropharynx (HR = 0.42 [95% CI: 0.43-0.47]), oral cavity (HR = 0.86 [95% CI: 0.79-0.95]), sinonasal tract (HR = 0.63 [95% CI: 0.48-0.83]), larynx (HR = 0.78 [95% CI: 0.71-0.87]), and hypopharynx (HR = 0.56 [95% CI: 0.48-0.66]), but not the nasopharynx (HR = 0.93 [95% CI: 0.77-1.14]).

CONCLUSION

HPV testing rates were significantly lower in non-oropharyngeal subsites. This is relevant as HPV-associated disease displayed significantly improved overall survival in both the oropharynx and four of five non-oropharyngeal subsites. While validation with prospective studies is necessary, these findings may warrant HPV testing in all HNSCC subsites.

Five-year pattern of adnexal tumors of the skin in Ethiopia

BACKGROUND

Adnexal tumors of the skin are rare neoplasms that encompass a wide range of dermatologic entities. Here, we investigated the pattern of adnexal tumors of the skin in the All African Leprosy and Tuberculosis Rehabilitation and Training Center (ALERT) hospital retrospectively.

METHODS

A hospital-based retrospective study was conducted at ALERT from histopathology records in the Armauer Hansen Research Institute (AHRI) pathology laboratory of patients diagnosed with any of the skin adnexal tumors during the time period January 2017 to December 2021. A structured data extraction sheet was used. Data entry was done using EpiData 4.6.0.6. Data were analyzed using SPSS version 25.

RESULT

A total of 146 skin adnexal tumors were identified making the magnitude 2.8% of total biopsies. The 3rd decade of life was found to be the most common age group. Male-to-female ratio was 1 : 1.05. Majority of the tumors were benign (82.2%) and had sweat gland differentiation at 48.6%. Poroma (10.9%) was the most frequent tumor, whereas porocarcinoma (6.8%) made up the most frequent malignant tumor. The most common site was the head and neck region (48.6%). Only 21.2% of the tumors were correctly identified clinically.

CONCLUSION

The magnitude of skin adnexal tumors is found to be slightly higher than other similar studies which could be because it was carried out in the largest dermatologic center in the country. The most common skin adnexal tumors identified, their localizations, and lines of differentiation are all in line with other studies. Histopathologic examination is mandatory for the accurate diagnosis of these tumors.

Prevalence of acute periapical abscesses in head and neck cancer patients receiving radiotherapy

AIMS

Head and neck cancer is a serious condition affecting the life of patients. Radiotherapy is commonly used to treat such conditions. The aim of this study was to assess the prevalence of acute periapical abscesses (PAs) in patients who received radiotherapy for head and neck cancer.

METHODS AND RESULTS

Data on acute PAs and oropharyngeal cancer (OPC) diagnosis with or without a history of radiation therapy (RAD) was retrieved by searching the appropriate query in the database. All cases were diagnosed for acute PAs by calibrated dentists for patients admitted to urgent care. The odds ratio (OR) for the prevalence of acute PAs and its association with a history of OPC with or without RAD were then calculated. Adjustment for comorbidities such as diabetes, smoking and gingival and periodontal diseases was also done. The prevalence of acute PAs in patients with a history of OPC was significantly higher as compared to the general hospital patient population (OR 2.92, 95%CI, p < .0001). Males were more affected than females and whites were more affected than African Americans and other ethnicities. The prevalence for PAs in patients with a history of OPC and RAD was higher and the difference in prevalence was statistically significant (OR 3.61, 95%CI, p < .0001). Whites were more affected than African Americans by more than 3.5-fold. Adjustment for diabetes comorbidly affected mainly the OPC + RAD group, however, the difference remained statistically significant. Adjustment for smoking and gingival and periodontal disease reduced the OR but the difference remained statistically different.

CONCLUSIONS

The high prevalence of acute PAs in patients with a history of OPC and RAD may suggest an association between these conditions warranting a meticulous medical and dental examination.

Global frequency and distribution of head and neck sarcomas in adulthood: a systematic review

PURPOSE

Head and neck sarcomas (HNS) constitute a rare and heterogeneous cancer entity. Management remains a challenge due their rarity and different biological behaviour among tens of subtypes. This systematic review aimed to describe HNS global frequency and distribution in adulthood.

METHODS

A systematic review was performed using PICOTS search strategies for qualitative question and it was written in accordance with PRISMA 2020 Statement. 70,653 publications were identified, and 15 variables were evaluated for a total of 2428 patients.

RESULTS

We identified 47 studies from 21 different countries from 5 different continents. Most of studies (83.3%) were performed in single institutions and America and Asia overruled for number of papers included (21 and 10, respectivelly). Osteosarcoma was more frequent, followed by chondrosarcoma, angiosarcoma and malignant fibrous histiocytoma. Early stage accounted for almost 80% of cases; advanced stage prevailed in developing countries. 1783 patients (90.1%) underwent surgery and 780 (39.4%) had adjuvant therapy. 50.8% of patients experienced tumour recurrence and the lowest mortality rate was reported in Europe (29.9%).

CONCLUSIONS

HNS holds a relative poor prognosis possibly explained by the heterogeneity of the disease. Treatment of HNS has shown to be highly diverse among different countries, underlining the importance of uniformed treatment guidelines to achieve better patient management and to improve survival outcomes.

Exogenous Estrogen in the Development of Head and Neck Cancer

Importance

Sex differences in head and neck cancer (HNC) incidence suggest a potential contribution of sex hormones.

Objective

To assess the role of exogenous estrogen exposure in the development of HNC in female patients.

Design, Settings, and Participants

This large multicenter cohort study using clinical records from the TriNetX real-world database included 20 years of data (through May 31, 2023) from 87 health care organizations. The TriNetX database was searched for medical records for female patients with and without exogenous estrogen exposure according to their chronological age. Cohort 1 included 731 366 female patients aged 18 to 45 years old with regular oral contraceptive (OC) intake and cohort 2 included 3 886 568 patients in the same age group who did not use OC. Cohort 3 comprised 135 875 female patients at least 50 years old receiving hormone replacement therapy (HRT), whereas cohort 4 included 5 875 270 patients at least 50 years old without HRT. Propensity score matching was performed for the confounders age, alcohol dependence, and nicotine dependence. Data analyses were performed in May 2023.

Main Outcome and Measures

Diagnosis of HNC (International Statistical Classification of Diseases and Related Health Problems, Tenth Revision: C00-C14), and after propensity score matching (1:1 nearest-neighbor greedy matching), a risk analysis to investigate risk differences and risk ratios (RRs) with a 95% CI.

Results

Among the 718 101 female patients in each of cohorts 1 and 2 (mean [SD] age at diagnosis, 25.9 [6.7] years), those with OC intake had a higher risk of an HNC diagnosis (RR, 1.47; 95% CI, 1.21-1.78) than those without OC use. Among the 131 835 female patients in each of cohorts 3 and 4 (mean [SD] age, 67.9 [12.0] years), those with postmenopausal HRT intake had a lower risk of an HNC diagnosis (RR, 0.77; 95% CI, 0.64-0.92) than those without HRT use.

Conclusions and Relevance

The findings of this cohort study illustrate a positive association between OC and a negative association between HRT and the development of HNC in female patients. Given the limitations of the TriNetX database, future research should include detailed information on the intake of OC and HRT and reproductive health information (eg, age at menarche/menopause, number of pregnancies) to more accurately define the strength and direction of the possible association between exogeneous estrogen exposure and the development of HNC in female patients.

Current status of head and neck sarcomas in Japan in 2016-2019: an analysis using the national cancer registry

BACKGROUND

Head and neck sarcomas are especially rare in Asia, leading to limited clinical evidence. This study aimed to investigate the incidence, clinical features, treatment status, and outcome of these sarcomas using data from the National Cancer Registry in Japan.

METHODS

All head and neck sarcomas diagnosed between 2016 and 2019 and recorded in the National Cancer Registry were analyzed. Data on sex, age, primary site, histological type, stage, treatment modality, and prognostic information were collected. Age-adjusted incidence and 3-year survival rates of patients with head and neck sarcomas were calculated.

RESULTS

Overall, 635 head and neck sarcoma patients were identified. Head and neck sarcoma occurred more frequently in men and patients in their 70 s. The age-adjusted annual incidence rate was 0.125 per 100,000 patients in the 2015 Japanese model or 0.089 per 100,000 patients in the world population model. The nasal cavity and paranasal sinuses were the most frequent primary sites, with rhabdomyosarcoma as the most common histologic type. Treatment typically involved chemotherapy and/or radiation therapy for rhabdomyosarcoma and Ewing's sarcoma, whereas surgical approaches for other types. Three-year survival rate of head and neck sarcoma patients was 64.8%.

CONCLUSIONS

Head and neck sarcomas occurred rarely, but most frequently in the nasal cavity and paranasal sinuses in Japan. Poor outcomes were observed for sarcoma patients than for non-sarcoma head and neck cancer patients.

Prevalence and persistence of depressive symptoms during the first year postdiagnosis in a large sample of patients with head and neck cancer

PURPOSE

The experience of persistent depressive symptomatology during the first year postdiagnosis has implications for recovery and adjustment by one year postdiagnosis. The present descriptive study sought to examine the prevalence and persistence of mild to moderate-severe depressive symptomology and associated disease-specific health-related quality of life (HRQOL) in patients with HNC.

MATERIALS & METHODS

This study was a prospective observational study at a single-institution tertiary cancer center. Depressive symptomatology was measured using the Beck Depression Inventory (BDI), captured at diagnosis and 3-, 6-, 9-, and 12-months postdiagnosis. HNC-specific HRQOL was measured using the Head and Neck Cancer Inventory (HNCI). Four subgroups were defined by BDI scores over time: persistent-moderate/severe subgroup, persistent-mild subgroup, transient subgroup, and resilient subgroup.

RESULTS

The distribution of patients (N = 946) was 65 (6.9 %) in the persistent-moderate/severe subgroup, 190 (20.1 %) in the persistent-mild subgroup, 186 (19.7 %) in the transient subgroup, and 505 (53.3 %) in the resilient subgroup. Across all four HNCI domains, patients in the persistent-moderate/severe subgroup failed to reach a score of 70 by 12-months postdiagnosis which is indicative of high functioning on the HNCI (aesthetics: M = 42.32, SD = 28.7; eating: M = 32.08, SD = 25.7; speech: M = 47.67, SD = 25.3; social disruption: M = 52.39, SD = 24.3). Patients in the persistent-mild subgroup failed to reach 70 in three of four domains. Patients in the resilient subgroup reached, on average, >70 on all HNCI domains.

CONCLUSIONS

Depression is a considerable issue during the first year postdiagnosis. Avenues for screening and intervention should be incorporated into HNC patient care per clinical practice guidelines to optimize recovery and HRQOL.

Impact of COVID-19 pandemic among patients with lung and head and neck cancer assisted in a public cancer center in Brazil

BACKGROUND

There is no updated national data regarding the real impact of the COVID-19 pandemic on delaying diagnosis and treatment among patients with lung, and head, and neck cancers in Brazil. This study aimed to analyze the COVID-19 pandemic impact on cancer diagnosis and clinical outcomes among lung, head, and neck cancer patients assisted in a tertiary cancer center in Southeastern Brazil, as well as to analyze these patients' pretreatment clinical features.

METHODS

Retrospective cohort of patients with lung or head and neck cancer assisted in a tertiary cancer center in southeastern Brazil between January/2019 and December/2021. To assess statistical differences among groups [i.e., cohort 2019 versus (vs.) 2020 and 2019 vs. 2021] chi-square test was used with a 5% significance level and 90% power for sample size calculation. Differences among baseline clinical features and sociodemographic characteristics were evaluated either by T-test for two samples or Fisher's or Pearson's chi-square test (for quantitative or qualitative variables). All utilized tests had a 5% significance level.

RESULTS

Six hundred fifty-two patients were included, 332 with lung and 320 with head and neck cancer; it was observed a significant decrease in oncologic treatment recommendations and increase in palliative care recommendation for patients with lung cancer, despite similar stages at diagnosis. During the COVID-19 pandemic, more pain symptoms were reported at the first Oncology assessment for patients with head and neck cancer (p < 0.05). Compared to 2019, head and neck cancer patients diagnosed in 2021 presented a worse initial performance status (p = 0.008). There was a statistically significant increase in survival for patients diagnosed with head and neck cancer in 2021 when compared to 2019 (p = 0.003).

CONCLUSIONS

This research highlights low survival rates for patients with lung and head and neck cancer in Brazil, even before the pandemic started, as consequence of advanced diseases at diagnosis at the public health system and clinical degrading features. Additionally, there was an increase incidence in both lung cancer and head and neck cancer despite no differences in clinical stage. This reflects how fragile is the public healthcare system even before facing an acute public health crisis such as the COVID-19 pandemic. Yet, the total impact on public health may follow for many years.

Prevalence of Alpha, Beta, and Gamma Human Papillomaviruses in Patients With Head and Neck Cancer and Noncancer Controls and Relation to Behavioral Factors

BACKGROUND

Human papillomaviruses (HPVs) cause head and neck cancer (HNC), which is increasing in incidence in developed countries. We investigated the prevalence of alpha (α), beta (β), and gamma (γ) HPVs among HNC cases and controls, and their relationship with sociodemographic, behavioral, and oral health factors.

METHODS

We obtained oral rinse and brush samples from incident HNC cases (n = 369) and hospital-based controls (n = 439) and tumor samples for a subsample of cases (n = 121). We genotyped samples using polymerase chain reaction with PGMY09-PGMY11 primers and linear array for α-HPV and type-specific multiplex genotyping assay for β-HPV and γ-HPV. Sociodemographic and behavioral data were obtained from interviews.

RESULTS

The prevalence of α-, β-, and γ-HPV among controls was 14%, 56%, and 24%, respectively, whereas prevalence among cases was 42%, 50%, and 33%, respectively. Prevalence of α- and γ-HPV, but not β-HPV, increased with increase in sexual activity, smoking, and drinking habits. No HPV genus was associated with oral health. Tumor samples included HPV genotypes exclusively from the α-genus, mostly HPV-16, in 80% of cases.

CONCLUSIONS

The distribution of α- and γ-HPV, but not β-HPV, seems to vary based on sociodemographic and behavioral characteristics. We did not observe the presence of cutaneous HPV in tumor tissues.

Aspirin intake and head and neck cancer: A pooled analysis within the INHANCE consortium

BACKGROUND

Aspirin intake might be inversely associated with head and neck cancer (HNC). Thus, we investigated this relationship within the International Head and Neck Cancer Epidemiology (INHANCE) consortium.

METHODS

Four case-control studies within the INHANCE consortium were included (2024 cases, 4196 controls). Study-specific odds ratios (ORs) and 95% confidence intervals (CIs) were estimated using logistic regression and subsequently pooled with DerSimonian-Laird random-effects model. Nonlinearity of the relationship between duration of intake and HNC was modeled with fractional polynomials.

RESULTS

Aspirin was inversely associated with HNC overall (OR = 0.48; 95% CI: 0.26, 0.91). Results for laryngeal cancer were similar (OR = 0.54; 95% CI: 0.30, 0.96). Analysis on duration of intake confirmed findings for HNC overall, showing also inverse associations for oropharyngeal and laryngeal cancer.

CONCLUSIONS

This study suggests that aspirin intake may reduce the risk of HNC, driven mainly by decreases in risk for laryngeal and oropharyngeal cancer.

Association of alcohol consumption, betel nut chewing, and cigarette smoking with mortality in patients with head and neck cancer among the Taiwanese population: A nationwide population-based cohort study

OBJECTIVES

This study investigated the association of alcohol consumption, betel nut chewing, and cigarette smoking (ABC) with mortality in patients with head and neck cancer (HNC). This nationwide population-based cohort study determined whether ABC habits were associated with overall or cancer-specific mortality in patients with HNC in Taiwan.

METHODS

Data from the Taiwan Cancer Registry and Taiwan's National Health Insurance Research Database were used to identify patients with HNC from 2011 to 2017. All the identified patients were monitored until the date of death or the end of 2017. Poisson regression models were employed to estimate the incidence rate ratios (IRRs) and 95% confidence intervals (CIs) associated with the effect of ABC habits on mortality.

RESULTS

A total of 31,246 patients with HNC were analyzed in this study. The results revealed that betel nut chewing alone exhibited the strongest effect, significantly increasing the risk of overall mortality (adjusted IRR = 1.44, 95% CI = 1.27-1.63). Additionally, betel nut chewing alone was significantly associated with cancer-specific mortality (adjusted IRR = 1.51, 95% CI = 1.30-1.44). Stratified analyses by sex and tumor location indicated that the effect of betel nut chewing alone on overall or cancer-specific mortality remained significant across both sexes, and among patients with oral cancer and patients with oropharyngeal cancer.

CONCLUSIONS

ABC habits, particularly betel nut chewing, are significantly associated with diminished survival rates in patients with HNC. Accordingly, the implementation of an integrated campaign targeting the prevention of betel nut chewing would be one of the effective public health strategies for improving outcomes for HNC patients.

Prevalence of obstructive sleep apnea after treatment for advanced T-stage head and neck cancer

PURPOSE

Treatment of head and neck cancer (HNC) may lead to obstructive sleep apnea (OSA), but conclusive results on the prevalence of OSA are lacking. The objective of this study is to investigate the prevalence of OSA in a cohort of patients treated for advanced T-stage HNC.

METHODS

A cross-sectional study was conducted in two tertiary cancer care centers including patients at least 1 year after treatment with curative intent with surgery and/or (chemo)radiotherapy ((C)RT) for advanced T-staged (T3-4) cancer of the oral cavity, oropharynx, hypopharynx, or larynx. A polysomnography (PSG) was performed in all participants. OSA was defined as an apnea-hypopnea index (AHI) of 15 events/h or higher or an AHI of 5 events/h and higher with OSA related symptoms, such as sleeping problems, daytime dysfunction and/or cardiac/metabolic comorbidities collected through file review and questionnaires.

RESULTS

Of the 67 participants, 48 (72%, 95% CI 59-82%) were diagnosed with OSA. Possible risk factors are male gender, higher BMI, greater neck circumference, more nicotine pack years, cardiometabolic comorbidities, use of medication with sleepiness as side effect, present tonsils, lower T-stage (T3 vs. T4 stage), higher AJCC stage and a HPV-negative tumor.

CONCLUSION

In this population of advanced T-stage HNC patients, the prevalence of OSA was 72%, which is considerably higher than in the general population (2-50%). Given the high prevalence, screening of this entire subgroup for OSA may be indicated. Future studies to identify high risk factors and develop an OSA screening protocol are needed.

Population-based analysis of the human development index and risk factors for head and neck cancer

BACKGROUND

We aimed to investigate global variations in incidence and mortality and their associations to possible risk factors for prompt cancer prevention and control.

METHODS

Estimates of incidence and mortality rates for six types of head and neck cancer were extracted from the GLOBOCAN 2020 database. Summary exposure values for level-two risk factors were obtained from the Global Burden of Disease. Regression models adjusting for the human development index (HDI) were constructed to analyze correlations between age-standardized rates and risk factors.

RESULTS

The incidence rates of multiple types of head and neck cancer were positively associated with HDI tiers. In addition to tobacco use and alcohol consumption, high systolic blood pressure was associated with the incidence and mortality of cancers of the salivary glands, oropharynx, hypopharynx, and larynx. Dietary risks were linked to cancers of the oropharynx, nasopharynx, and hypopharynx.

CONCLUSIONS

This comprehensive analysis provides valuable insights into possible risk factors for head and neck cancer.

Factors Influencing Delay in Diagnosis of Head and Neck Cancer in Rwanda

OBJECTIVE

Head and neck cancer is a significant contributor to global otolaryngologic disease burden, with a disproportionate impact on low- and middle-income countries. This study investigates the factors contributing to delays in head and neck cancer diagnosis at the University Teaching Hospital of Kigali (CHUK).

METHODS

Cross-sectional study of all patients with a pathologic diagnosis of head and neck cancer presenting to CHUK between January 2021 and June 2022. Sociodemographic data, tumor characteristics, and reasons for delay were collected. Univariate and multivariable analyses were undertaken to evaluate risk factors for delays.

RESULTS

Eighty-one patients met criteria for inclusion. Median duration from patient first reported symptoms to initial medical consultation was 52 weeks, from initial medical consultation to referral to CHUK was 4 weeks, and from referral to final pathologic diagnosis was 6 weeks. The most common reason for delay to referral to CHUK was financial (37.04%). Patients who visited traditional healers had higher odds of delay between symptom onset and medical consultation (OR 3.51, CI 1.05-11.70). Delays in final diagnosis after referral were most commonly due to OR availability for biopsy (37.04%) and time for pathology results after biopsy (35.80%). OR availability had a significant impact on duration to final diagnosis (OR 59.48, CI 7.17-493.67). Stage 4 disease had the shortest time to final diagnosis (OR 0.05, CI 0.01-0.45).

CONCLUSION

Understanding the reasons for delayed diagnosis of head and neck cancer may help guide improvements in care, with the goal of reducing global head and neck burden of disease.

LEVEL OF EVIDENCE

3; prospective non-random follow-up study Laryngoscope, 134:1663-1669, 2024.

Cost of Illness of Head and Neck Cancer in Sweden

OBJECTIVES

Head and neck cancer (HNC) is the sixth most common cancer worldwide. The condition and its treatment often lead to marked morbidities and, for some patients, premature death. Inferentially, HNC imposes a significant economic burden on society. This study aims to provide a comprehensive and detailed estimation of the cost of illness of HNC for Sweden in 2019.

METHODS

This is a prevalence-based cost of illness study. Resource utilization and related costs are quantified using national registry data. A societal perspective is applied, including (1) direct costs for healthcare utilization, (2) costs for informal care from family and friends, and (3) costs for productivity loss due to morbidity and premature death. The human capital approach is used when estimating productivity losses.

RESULTS

The societal cost of HNC for Sweden in 2019 was estimated at €92 million, of which the direct costs, costs for informal care, and costs for productivity loss represented 34%, 2%, and 64%, respectively. Oral cavity cancer was the costliest HNC, followed by oropharyngeal cancer, whereas nasopharyngeal cancer was the costliest per person. The cost of premature mortality comprised 60% of the total cost of productivity loss. Males accounted for 65% of direct costs and 67% of costs for productivity loss.

CONCLUSIONS

The societal cost of HNC is substantial and constitutes a considerable burden to Swedish society. The results of the present study may be used by policymakers for planning and allocation of resources. Furthermore, the information may be used for future cost-effectiveness analyses.

Detection and typization of HPV genotypes in subjects with oral and upper respiratory tract lesions, Milan, Italy

BACKGROUND

Oral human papillomavirus (HPV) is common among healthy individuals but causes and implications of persistent infections are under evaluation in the pathogenesis of head and neck neoplasms.

METHODS

This was a retrospective study evaluating the prevalence of high-risk (HR), probable HR and low-risk (LR) HPV types in patients reporting signs/symptoms of oral and upper respiratory tract lesions. Individuals attending between 2019 and 2022 a University Hospital in Milan, Italy, with risk factors for HPV (unprotected oral sex and/or previous documentation of HPV infection in oral and upper respiratory tract and/or another anatomical site) were included.

RESULTS

Fourteen out of 110 (12.7%) individuals tested positive for HPV DNA. The prevalence of HR-HPV and LR-HPV was 3.6% (4/110) and 9.1% (10/110), respectively. No probable/possible HR-HPV was detected. Specifically, 10/110 (9.1%) were diagnosed with 1 LR-HPV genotype, 3/110 (2.7%) were infected with 1 HR-HPV and 1/110 had 3 concomitant HR-HPV types. HPV 16 (2.7%, 3/110) and 6 (4.5%, 5/110) were the most common HR and LR types, respectively. One patient positive for HPV 16, 33 and 35 was diagnosed with cancer at the base of the tongue. Two individuals among those who tested positive for HPV DNA reported previous HPV vaccination.

CONCLUSIONS

Our data, in line with observations from previous prevalence studies, support the potential role of HPV in head and neck neoplasms. HPV DNA testing should be performed in patients presenting lesions in oral/respiratory tracts and risk factors for HPV. Improvement in HPV vaccination coverage is warranted.

Twelve years after: The french national network on rare head and neck tumours (REFCOR)

BACKGROUND

Rare cancers constitute less than 10% of head and neck cancers and lack sufficient evidence for standardized care. The French Rare Head and Neck Cancer Expert Network (REFCOR) as established a national database to collect data on these rare cancers. This study aims to describe patient and tumour characteristics in this database.

METHODS

Prospective data collection was conducted across multiple centers. Survival analyses were performed using Kaplan Meier method and Log Rank test. Odds ratios were used for comparing proportions.

RESULTS

A total of 7208 patients were included over a period of 10 years. The most frequent histologies were: Not Otherwise Specified (NOS) adenocarcinoma 13 %, adenoid cystic carcinoma 12 %, squamous cell carcinoma of rare locations 10 %, mucoepidermoid carcinoma 9 %, intestinal-type adenocarcinoma (8 %). Tumours were located in sinonasal area (38 %); salivary glands (32 %); oral cavity / oropharynx / nasopharynx (16 %); larynx / hypopharynx (3 %); ears (1 %); others (3 %). Tumours were predominantly classified as T4 (23 %), N0 (54 %), and M0 (62 %). Primary treatment approach involved tumour resection (78 %) and / or radiotherapy (63 %). Patients with salivary gland cancers exhibited better 5-year overall survival (OS) rates (p < 0.05), and lower recurrence rates compared to patients with sinonasal, laryngeal/ hypopharyngeal cancers. No significant differences were observed in the other comparisons. Acinar cell carcinoma demonstrated the best OS while mucous melanoma had the poorest prognosis.

CONCLUSION

Melanoma, carcinoma NOS, and sinonasal undifferenciated carcinoma still have poor prognoses. Efforts are being made, including training and guidelines, to expand network coverage (REFCOR, EURACAN), improve data collection and contribute to personalized therapies.

Head and Neck Cancer Incidence in the United States Before and During the COVID-19 Pandemic

Importance

Research about population-level changes in the incidence and stage of head and neck cancer (HNC) associated with the COVID-19 pandemic is sparse.

Objective

To examine the change in localized vs advanced HNC incidence rates before and during the first year of the pandemic.

Design, Setting, and Participants

In this cross-sectional study of patients in the US diagnosed with HNC from 2017 to 2020, the estimated number with cancer of the oral cavity and pharynx (floor of mouth; gum and other mouth; lip; oropharynx and tonsil; and tongue) and larynx were identified from the SEER cancer registry. Subgroup analyses were stratified by race and ethnicity, age, and sex. Data were analyzed after the latest update in April 2023.

Exposure

The COVID-19 pandemic in 2020.

Main Outcomes and Measures

The primary outcomes were the annual incidence rates per 100 000 people for localized HNC (includes both localized and regional stages) and advanced HNC (distant stage) and weighted average annual percentage change from 2019 to 2020. Secondary outcomes included annual percentage change for 2017 to 2018 and 2018 to 2019, which provided context for comparison.

Results

An estimated 21 664 patients (15 341 [71%] male; 10 726 [50%] ≥65 years) were diagnosed with oral cavity and pharynx cancer in 2019 in the US, compared with 20 390 (4355 [70%] male; 10 393 [51%] ≥65 years) in 2020. Overall, the HNC incidence rate per 100 000 people declined from 11.6 cases in 2019 to 10.8 in 2020. The incidence rate of localized cancer declined to 8.8 cases (-7.9% [95% CI, -7.5 to -8.2]) from 2019 to 2020. The localized cancer incidence during the first year of the pandemic decreased the most among male patients (-9.3% [95% CI, -9.2 to -9.5]), Hispanic patients (-12.9% [95% CI, -12.9 to -13.0]), and individuals with larynx cancer (-14.3% [95% CI, -13.6 to -15.0]). No change in the overall incidence rate was found for advanced HNC.

Conclusions and Relevance

In this cross-sectional study, the incidence of localized HNC declined during the first year of the pandemic. A subsequent increase in advanced-stage diagnoses may be observed in later years.

The Development of Head and Neck Cancer in Patients with the Isolated Complaint of Globus Pharyngeus

OBJECTIVES

Globus pharyngeus (GP) is a perplexing problem that accounts for 4% of referrals to otolaryngologists. Workup can be extensive and may not be definitive in terms of etiology. The concern that lingers is that of a subtle cancer, which can prolong anxiety and increase testing cost. The aim of this study was to identify the incidence of head and neck cancer (HNC) in patients diagnosed with GP.

METHODS

Longitudinal data were captured from two academic institutions, identifying patients with a new diagnosis of globus pharyngeus in 2015. The patient cohort was tracked for at least 4 years to assure follow-up and ability to determine if a HNC developed. Additional demographic data was also collected to determine most common consults, treatments, and testing employed.

RESULTS

Excluding patients with previous diagnosis of HNC, 377 patients were identified who presented with GP in 2015 that had at least 4 years of follow-up. Demographics were predominantly women (64.65%), with a mean age of 56.48 years at diagnosis, and the most common provider specialty on the first visit was otolaryngology (39.52%). Four patients ultimately developed HN cancer, for an overall incidence of 1% for the 4-year period of 2015-2019.

CONCLUSIONS

Given the long-term follow-up of this population, the overall incidence of developing a head and neck cancer, with a presenting symptom of globus, is low. This is the largest study to date to report the percentage of patients endorsing GP to then subsequently develop HNC. This helps otolaryngologists to reassure patients who have a normal comprehensive exam, flexible endoscopy, and targeted studies.

LEVEL OF EVIDENCE

4 Laryngoscope, 134:1147-1154, 2024.

Smoking, Drinking, and Dietary Risk Factors for Head and Neck Cancer in Prostate, Lung, Colorectal, and Ovarian Cancer Screening Trial Participants

Importance

There is a paucity of large-scale prospective studies evaluating the risk of developing head and neck cancer (HNC) associated with smoking, drinking, and dietary habits.

Objective

To determine the association of smoking, drinking, and dietary habits with the risk of developing HNC.

Design, Setting, and Participants

A nested cohort survival analysis of Prostate, Lung, Colorectal, and Ovarian (PLCO) Cancer Screening Trial participants was performed. Participants were between 55 and 74 years of age and recruited at 10 centers across the US from November 1993 to July 2001. Participants who developed HNC were matched with controls based on demographics and family history of HNC for analysis of smoking habits; for the analysis of drinking and dietary habits, matching was performed on smoking status and duration in addition to demographics and family history of HNC. Data analysis was performed from January to November 2023.

Exposures

Smoking, drinking, and dietary habits.

Main Outcome and Measure

Diagnosis of HNC.

Results

In total, 139 926 participants (51% female; mean [SD] age, 62.6 [5.4] years) were included in the analysis of smoking habits with a median (IQR) follow-up time of 12.1 (10.3-13.6) years, 571 of whom developed HNC. HNC risk associated with smoking increased the closer the proximity of the head and neck subsite to the lungs, with the greatest risk associated with smoking observed in laryngeal cancer (current smoker hazard ratio [HR], 9.36; 95% CI, 5.78-15.15 compared to a nonsmoker). For analysis of drinking and dietary habits, 94 466 participants were included in the analysis of smoking habits with a median (IQR) follow-up time of 12.2 (10.5-13.6) years, 264 of whom developed HNC. HNC risk increased with heavy drinking (HR, 1.85; 95% CI, 1.44-2.38) and decreased with consumption of whole grains (HR, 0.78; 95% CI, 0.64-0.94/oz per day), whole fruits (HR, 0.90; 95% CI, 0.82-0.98/cup per day), and overall healthy eating, as scored by Healthy Eating Index 2015 (HR, 0.87; 95% CI, 0.78-0.98/10 points).

Conclusions and Relevance

In this nested cohort study, the risk of HNC associated with smoking was higher for subsites that were closer to the lungs; heavy drinking was associated with greater HNC risk, while healthy eating was associated with a modest reduction in HNC risk.

Air pollution is associated with increased incidence-rate of head and neck cancers: A nationally representative ecological study

INTRODUCTION

Early studies show conflicting findings regarding particulate matter ≤ 2.5 μm in diameter (PM2.5) exposure and development of head and neck cancers (HNC). We analyzed the relationship between PM2.5 exposure and various types of HNC in a nationally representative ecological sample.

METHODS

We determined HNC incidence in 608 US counties from 2011 to 2019 using the Surveillance, Epidemiology and End Results (SEER) Program from the National Cancer Institute. We also collected information on sociodemographic factors from SEER and data on smoking and alcohol intake from CDC data frames (county level). PM2.5 exposure levels were estimated using satellite and meteorological data via previously validated general additive models. Flexible semi-nonparametric regression models were used to test the relationship between PM2.5 exposure levels and HNC incidence, adjusting for demographics, socioeconomic factors, and comorbidity.

RESULTS

Increased PM2.5 exposure levels were associated with higher incidence-rates of oral cavity and pharyngeal cancers controlling for confounders in our primary analyses (IRR = 1.04, 95 % CI 1.01, 1.07, p = 0.02 per 1 μg/m3 increase in PM2.5). This relationship was maintained after adjusting for multiple testing (Holm s method, p = 0.04) and in ordinary least squares (OLS) regression (β = 0.17, 95 % CI 0.01, 0.57, p = 0.01). Increased exposure was also associated with other HNC: esophagus (IRR = 1.06, 95 % CI 1.01, 1.11, p = 0.02), lip (IRR = 1.16, 95 % CI 1.03, 1.31, p = 0.01), tonsil (IRR = 1.10, 95 % CI 1.03, 1.16, p < 0.01). However, these relationships were not maintained in secondary analyses.

CONCLUSIONS

This nationally representative ecological study shows that increased levels of air pollution are associated with increased incidence of overall oral cavity and pharyngeal cancers in the US.

Human Papillomavirus-Attributable Head and Neck Cancers in India-A Systematic Review and Meta-Analysis

PURPOSE

Head and neck cancer accounts for about one third of the global burden in India. Mucosal high-risk human papillomavirus (HPV) has been hypothesized as a contributory risk factor for head and neck cancer (HNC) but its prevalence in Indian patients is not well established. Therefore, this systematic review and meta-analysis aimed to estimate the prevalence of HPV in HNC in India and their attributable fraction by considering the biomarkers of carcinogenesis, p16, and HPV E6/E7 mRNA.

METHODS

A systematic literature search was done in Medline via PubMed, Embase, Scopus, ScienceDirect, ProQuest, and Cochrane to identify studies on HPV and HNC in the Indian population, published between January 1990 and October 2022. Fifty-four eligible studies were identified and relevant clinical information was collected. Meta-analysis was conducted to estimate the pooled prevalence of HPV DNA, p16INK4a, and E6/E7 mRNA percent positivity by random-effect logistic regression model using Metapreg, STATA 18.

RESULTS

Thirty-four high-quality studies were taken for meta-analysis. The pooled prevalence of HPV in HNC was 20% (95% CI, 12 to 32) with a high level of heterogeneity (I2 = 90.79%). The proportion of HPV in oropharyngeal cancer (OPC; 22% [95% CI, 13 to 34]) and laryngeal cancer (LC; 29% [95% CI, 17 to 46]) was higher than in oral cancer (OC; 16% [95% CI, 8 to 30]). The HPV-attributable fraction of OPC, considering the E6/E7 mRNA and p16 positivity, was 12.54% and 9.68%, respectively, almost similar to LC (11.6% and 9.57%), while it was much lower in OC (3.36% and 4%).

CONCLUSION

The HPV-attributable fraction is considerably lower for OC, suggesting a negligible causative role of HPV in OC. A significant proportion of OPC and LC are attributed to HPV; however, their exact causative role is unclear because of the presence of other known risk factors.

Prevalence of Obstructive Sleep Apnea in Head and Neck Squamous Cell Carcinoma Patients before and after Treatment

Background and Objectives: Obstructive sleep apnea (OSA) is common not only in the general population but even more so in patients with tumors of the head and neck region. Untreated, it leads to reduced quality of life, increased daytime sleepiness, and other comorbidities. The aim of this study was to determine the difference in the occurrence of OSA in the patient population with head and neck tumors compared with the general population as represented by the Trend cohort of the Study of Health in Pomerania (SHIP), and to assess the influence of tumor treatment. Materials and Methods: Between July 2018 and December 2021, preoperative polysomnography was conducted in 47 patients with histologically confirmed squamous cell carcinoma in the oropharynx, hypopharynx, or larynx. A follow-up polysomnography was performed in 23 patients 2-11 months after completing treatment. The collected data were correlated with tumor treatment and tumor size. Results: Of the included patients, 43 were male and 4 were female. Age ranged from 54 to 90 years. The pretherapeutic measurement found no significant difference in the prevalence of a pathologically elevated apnea-hypopnea index (AHI) in our patients compared with the SHIP Trend cohort. In the follow-up measurement after completion of treartment, a significant deterioration in AHI was observed. Initially, 70% of patients had an AHI > 5; after therapy, this increased to 87% (p = 0.008). The effect was particularly pronounced in the group of patients with advanced tumor stages who had received primary chemoradiation. Conclusions: OSA is a relevant condition in patients with head and neck cancer. Tumor treatment can lead to an increased occurrence of sleep-related breathing disorders, especially in patients with advanced tumor stages undergoing primary chemoradiation. Additional studies are necessary to better understand the exact mechanism involved.

Stroke Risk in Survivors of Head and Neck Cancer

Importance

Survivors of head and neck cancers (HNC) have increased risk of stroke. A comprehensive report using standardized methods is warranted to characterize the risk and to inform on survivorship strategy.

Objective

To determine the stroke risk in subpopulations of survivors of HNC in Singapore.

Design, Setting, and Participants

This national, registry-based, cross-sectional study aimed to estimate stroke risk in subgroups of the HNC population between January 2005 and December 2020. Participants were identified from the Singapore Cancer Registry, the Singapore Stroke Registry, and the Registry of Birth and Deaths using relevant International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM) and International Statistical Classification of Diseases and Related Health Problems, Tenth Revision, Australian Modification (ICD-10-AM) codes. HNC subgroups were defined based on patient demographic, disease, and treatment factors. Data were analyzed from September 2022 to September 2023.

Exposure

Diagnosis of HNC.

Main Outcomes and Measures

Both ischemic and hemorrhagic stroke were studied. The age-standardized incidence rate ratio (SIRR) and age-standardized incidence rate difference (SIRD) were reported. The Singapore general population (approximately 4 million) served as the reference group for these estimations.

Results

A total of 9803 survivors of HNC (median [IQR] age at diagnosis, 58 [49-68] years; 7166 [73.1%] male) were identified. The most common HNC subsites were nasopharynx (4680 individuals [47.7%]), larynx (1228 individuals [12.5%]), and tongue (1059 individuals [10.8%]). A total of 337 individuals (3.4%) developed stroke over a median (IQR) follow-up of 42.5 (15.0-94.5) months. The overall SIRR was 2.46 (95% CI, 2.21-2.74), and the overall SIRD was 4.11 (95% CI, 3.37-4.85) strokes per 1000 person-years (PY). The cumulative incidence of stroke was 3% at 5 years and 7% at 10 years after HNC diagnosis. The SIRR was highest among individuals diagnosed at younger than 40 years (SIRR, 30.55 [95% CI, 16.24-52.35]). All population subsets defined by age, sex, race and ethnicity, HNC subsites (except tongue), stage, histology, and treatment modalities had increased risk of stroke compared with the general population. The SIRR and SIRD were significantly higher among individuals who had a primary radiation treatment approach (SIRR, 3.01 [95% CI, 2.64-3.43]; SIRD, 5.12 [95% CI, 4.18-6.29] strokes per 1000 PY) compared with a primary surgery approach (SIRR, 1.64 [95% CI, 1.31-2.05]; SIRD, 1.84 [95% CI, 0.923.67] strokes per 1000 PY).

Conclusions and Relevance

In this cross-sectional study of survivors of HNC, elevated stroke risks were observed across different age, subsites, and treatment modalities, underscoring the importance of early screening and intervention.

[Impact of the COVID-19 pandemic on the diagnosis and treatment of patients with head and neck cancer in Brandenburg and Berlin]

BACKGROUND

The impact of the COVID-19 pandemic on potential limitations to the diagnosis and treatment of patients with head and neck tumours has not yet been adequately investigated. There are contradictory data on this subject. Data from larger patient collectives do not exist for Germany so far.

OBJECTIVE

The aim of the survey was to clarify in a large cohort whether the COVID-19 pandemic had an influence on the diagnosis and treatment of patients with head and neck tumours.

METHODS

A retrospective data analysis of the reporting data of the Clinical and Epidemiological Cancer Registry of Brandenburg and Berlin (Klinisch-epidemiologischen Krebsregisters Brandenburg-Berlin, KKRBB) of 4831 cases with head and neck tumours from 2018 to 2020 was performed. The period before April 01, 2020, was evaluated as a prepandemic cohort and compared with the cases of the pandemic cohort from April 1, 2020, until December 31, 2020, in terms of patient-related baseline data, tumour location, tumour stage, tumour board and treatments administered.

RESULTS

No differences were observed between the prepandemic and pandemic cohorts with regard to patient-related baseline data, tumour localisation and tumour stage. Likewise, no temporal delay in diagnosis, tumour board and treatment was evident during the pandemic period. On the contrary, the time interval between diagnosis and start of therapy was shortened by an average of 2.7 days in the pandemic phase. Tumours with T4 stage were more frequently treated surgically during the pandemic compared to the period before (20.8% vs. 29.6%), whereas primary radio(chemo)therapy decreased during the pandemic (53.3% vs. 40.4%). For all other tumour stages and entities, there were no differences in treatment.

CONCLUSION

Contrary to initial speculation that the COVID-19 pandemic may have led to a decrease in tumour cases, larger tumour stages at initial presentation and a delay in diagnosis and treatment, the cohort studied for Brandenburg and Berlin showed neither a delay in tumour treatment nor an increase in tumour size and stage at initial presentation. The treatments performed, however, were subject to a change in favour of surgery and it remains to be seen whether this trend will be maintained in the long term.

Lung Cancer Screening in Head and Neck Cancer Patients: An Untapped Opportunity

BACKGROUND

Despite evidence demonstrating that lung cancer screening (LCS) decreases mortality, widespread implementation is lagging. Efforts to identify and recruit patients for LCS are in need. Candidacy for LCS is based on identifiable risk factors, many of which overlap with those of head and neck malignancies. Thus, we aimed to evaluate the prevalence of candidacy for LCS in the head and neck cancer patient population.

METHODS

We performed a review of anonymous surveys collected from patients who presented to a head and neck cancer clinic. Variables collected from these surveys included age, biologic sex, smoking history, and head and neck cancer history. Patients' candidacy for screening was determined, and descriptive analyses were performed.

RESULTS

A total of 321 patient surveys were reviewed. Mean age was 63.7 years, and 195 (60.7%) were men. In this sample, 19 (5.91%) were current smokers, and 112 (34.9%) were former smokers, having quit an average of 19.4 years prior to completing the survey. Average pack-years was 29.3. Of the 321 patients surveyed, 60 (18.7%) would qualify for LCS using current guidelines. However, among those 60 patients who qualified for LCS, only 15 (25%) patients had been offered screening and only 14 (23.3%) had been screened.

CONCLUSIONS

We have importantly demonstrated both a substantial prevalence of candidacy for LCS in the head and neck cancer population as well as disappointingly low levels of screening utilization in this group of patients. We have identified this setting as a key patient population that ought to be targeted for information about and access to LCS.

Dietary patterns linked to lower odds of malnutrition are associated with all-cause and cancer mortality in adults with cancer

OBJECTIVES

Dietary patterns, characterised by protein, polyunsaturated fatty acids, and vitamin D, reduce the odds of malnutrition in cancer survivors. However, it is unclear whether these dietary patterns also improve prognosis. This study prospectively examined associations between dietary patterns linked to lower odds of malnutrition and the risk of all-cause and cancer mortality in adult cancer survivors from the UK Biobank cohort.

DESIGN

Prospective observational study.

SETTING AND PARTICIPANTS

Cancer survivors from the UK Biobank (mean ± SD, 7.1 ± 6.3 years since diagnosis) were included (n = 2415; 59.7 ± 7.1 years; 60.7% female).

MEASUREMENTS

Dietary intake was estimated using the Oxford WebQ 24-h dietary assessment. Dietary patterns ('high oily fish and nuts', and 'low oily fish') were derived using reduced rank regression (response variables: protein (g/kg/day), polyunsaturated fatty acids (g/day) and vitamin D (μg/day)). Cox proportional hazard models estimated hazard ratios (HR) and 95% confidence intervals (CI) for all-cause and cancer mortality. Nonlinear relationships were examined using restricted cubic splines. Models were adjusted for demographic and health characteristics. Sub-group analyses investigated relationships in sub-samples of adults with i) high nutritional risk (lung, gastrointestinal, haematological, or head and neck tumours) and ii) recent cancer diagnosis (cancer diagnosis within two years prior to assessment).

RESULTS

Deaths due to all-causes (n = 305) and cancer (n = 249) were identified during a median 10.4 (IQR: 10.2-10.8) years follow-up. There were no statistically significant linear associations between the dietary patterns and all-cause or cancer mortality. However, a U-shaped association between the 'high oily fish and nuts' pattern, characterised by higher intake of oily fish and nuts and seeds, and all-cause mortality (p-non-linearity = 0.004) was identified, as well as with all-cause (p-non-linearity = 0.006) and cancer mortality (p-non-linearity = 0.035) in adults with a high nutritional risk cancer diagnosis (lung, gastrointestinal, haematological, or head and neck tumours), indicating that both above and below mean intake was associated with increased risk. The 'low oily fish' pattern, characterised by lower oily fish but higher potato intake, also had a non-linear association with all-cause mortality (p-non-linearity = 0.046) where lower but not higher than mean intake increased mortality risk. No dietary patterns were significantly associated with mortality in adults with a recent cancer diagnosis.

CONCLUSION

'High oily fish and nuts' or 'low oily fish' dietary patterns that were protective against malnutrition were associated with risk of all-cause and cancer mortality in adults with cancer. Future research should assess the efficacy of these dietary patterns in the acute treatment period when malnutrition is most prevalent.

A systematic literature review of the human papillomavirus prevalence in locally and regionally advanced and recurrent/metastatic head and neck cancers through the last decade: The "ALARM" study

AIMS

The aim of this systematic literature review was to provide updated information on human papillomavirus (HPV) prevalence in locally and regionally advanced (LA) and recurrent/metastatic (RM) head and neck cancer (HNC) worldwide.

METHODS

Electronic searches were conducted on clinicaltrials.gov, MEDLINE/PubMed, Embase, and ASCO/ESMO journals of congresses for interventional studies (IS; Phase I-III trials) as well as MEDLINE and Embase for non-interventional studies (NIS) of LA/RM HNC published between January 01, 2010 and December 31, 2020. Criteria for study selection included: availability of HPV prevalence data for LA/RM HNC patients, patient enrollment from January 01, 2010 onward, and oropharyngeal cancer (OPC) included among HNC types. HPV prevalence per study was calculated as proportion of HPV+ over total number of enrolled patients. For overall HPV prevalence across studies, mean of reported HPV prevalence rates across studies and pooled estimate (sum of all HPV+ patients over sum of all patients enrolled) were assessed.

RESULTS

Eighty-one studies (62 IS; 19 NIS) were included, representing 9607 LA/RM HNC cases, with an overall mean (pooled) HPV prevalence of 32.6% (25.1%). HPV prevalence was 44.7% (44.0%) in LA and 24.3% (18.6%) in RM. Among 2714 LA/RM OPC patients from 52 studies with available data, mean (pooled) value was 55.8% (50.7%). The majority of data were derived from Northern America and Europe, with overall HPV prevalence of 46.0% (42.1%) and 24.7% (25.3%) across studies conducted exclusively in these geographic regions, respectively (Northern Europe: 31.9% [63.1%]). A "p16-based" assay was the most frequently reported HPV detection methodology (58.0%).

CONCLUSION

Over the last decade, at least one quarter of LA/RM HNC and half of OPC cases studied in IS and NIS were HPV+. This alarming burden is consistent with a potential implication of HPV in the pathogenesis of at least a subgroup of HNC, underscoring the relevance of HPV testing and prophylaxis to HNC prevention and management.

Head and Neck Cancer of Unknown Primary: A Multicenter Retrospective Cohort study in Northern Thailand, an Endemic Nasopharyngeal Cancer Area

OBJECTIVE

This study aimed to evaluate the characteristics and oncological outcomes of head and neck carcinoma of unknown primary (HNCUP) patients in an endemic nasopharyngeal cancer (NPC) area.

METHODS

One hundred and forty-four HNCUP patients curatively treated between January 1995 and December 2022 from 5 centers were retrospectively recruited onto the study to analyze the clinicopathological characteristics and oncological outcomes and compare them with historical data. A multivariate Cox proportional hazards model analysis was performed to evaluate factors affecting survival outcomes. A propensity-matched pair analysis of the patients with positive and negative EBV-encoded small RNA (EBER) staining was applied to compare the characteristics and outcomes between the two groups.

RESULTS

The median follow-up time was 45 months. Most patients (88.2%) received total mucosal irradiation (TMI). Primary tumor emergence (PTE) was detected in 6 patients (4.2%) who did not have TMI. The 5-year overall survival (OS), disease-free survival, and locoregional recurrence-free survival were 51.3%, 64.9%, and 72.7%, respectively. Extranodal extension and N3 compared with the N1 stage were the significant independent predictors for OS (HR 2.90, 95% CI 1.12-7.51, p = 0.028 and HR 3.66, 95%CI 1.23-11.89, p = 0.031, respectively). The matched-pair analysis demonstrated comparable all survival outcomes between the EBER-positive and -negative groups. All patients in the matched pair analysis received TMI, and no PTE was detected.

CONCLUSION

Our survival outcomes were comparable to previous studies with a low rate of PTE. The matched pair analysis of EBER-positive and -negative groups revealed similar oncological outcomes and no primary tumor emergence when total mucosal irradiation was administered.

Subsite-specific trends in mid- and long-term survival for head and neck cancer patients in Japan: A population-based study

Advances in diagnostic techniques and treatment modalities have impacted head and neck cancer (HNC) prognosis, but their effects on subsite-specific prognosis remain unclear. This study aimed to assess subsite-specific trends in mid- and long-term survival for HNC patients diagnosed from 1993 to 2011 using data from population-based cancer registries in Japan. We estimated the net survival (NS) for HNC by subsite using data from 13 prefectural population-based cancer registries in Japan. Changes in survival over time were assessed by multivariate excess hazard model of mortality. In total, 68,312 HNC patients were included in this analysis. We observed an overall improvement in 5-year NS for HNC patients in Japan. However, survival varied among subsites of HNC, with some, such as naso-, oro- and hypopharyngeal cancers, showing significant improvement in both 5- and 10-year NS, whereas others such as laryngeal cancer showed only a slight improvement in 5-year NS and no significant change in 10-year NS after adjustment for age, sex and stage. In conclusion, the study provides insights into changing HNC survival by site at the population level in Japan. Although advances in diagnostic techniques and treatment modalities have improved survival, these improvements are not shared equally among subsites.

Cocaine use and head and neck cancer risk: A pooled analysis in the International Head and Neck Cancer Epidemiology Consortium

BACKGROUND

Cocaine is an illegal recreational drug used worldwide, yet little is known about whether cocaine inhalation (smoking/snorting) increases the risk of head and neck cancer (HNC).

METHODS

The analyses were conducted by pooling data from three case-control studies with 1639 cases and 2506 controls from the International Head and Neck Cancer Epidemiology Consortium. Epidemiologic data, including cocaine use histories, were obtained in face-to-face interviews. Odds ratios (ORs) and corresponding 95% confidence intervals (CIs) were estimated using hierarchical logistic regression models.

RESULTS

Controlling for cumulative tobacco and alcohol use, we observed a weak positive association between cocaine use and HNC (ORever vs. never  = 1.35, 95% CI: 0.96, 1.90). In stratified analysis, while we did not detect associations among never tobacco or alcohol users due to the limited sample size, the association with cocaine use was observed among tobacco users and alcohol drinkers. ORs for ever and high cumulative use (>18 times) versus never use were 1.40 (95% CI: 0.98, 2.00) and 1.66 (95% CI: 1.03, 2.69) among tobacco users, and 1.34 (95% CI: 0.93, 1.92) and 1.59 (95% CI: 1.00, 2.51) among alcohol drinkers, respectively.

CONCLUSION

In this pooled analysis, we observed a weak positive association between cocaine inhalation and HNC risk. Our findings provide preliminary evidence of the potential carcinogenic effect of cocaine on HNC. Because of study limitations, including limited number of cocaine users, confounding, and heterogeneity across studies, future investigations will require larger studies with more detailed information on cocaine use history.

Updated disease distributions, risk factors, and trends of laryngeal cancer: a global analysis of cancer registries

BACKGROUND

Though the laryngeal cancer only has 1% of the total cancer cases and related deaths, it is a type of head and neck cancers with the highest prevalence. This study aims to investigate the epidemiological trend of laryngeal cancer with updated data on the global distribution of the disease burden.

MATERIALS AND METHODS

The incidence and mortality rate of laryngeal cancer was extracted from GLOBOCAN (2020), Cancer Incidence in Five Continents series I-X, WHO mortality database , the Nordic Cancer Registries , and the Surveillance, Epidemiology, and End Results Program. The Global Health data exchanges for the prevalence of its associated risk factors. A Joinpoint regression analysis was used to calculate Average Annual Percentage Change (AAPC).

RESULTS

The age-standardised rate (ASR) of laryngeal cancer incidence and mortality were 2.0 and 1.0 per 100 000 worldwide. The Caribbean (ASR=4.0) and Central and Eastern Europe (ASR=3.6) had the highest incidence and mortality rate. Incidence and risk factors associated with laryngeal cancer included tobacco usage, alcohol consumption, poor diet, obesity, diabetes, hypertension, and lipid disorders. There was an overall decreasing trend in incidence, especially for males, but an increasing incidence was observed in female populations and younger subjects.

CONCLUSIONS

As overall global trends of laryngeal cancer have been decreasing, especially for the male population, this could possibly be attributed to reduced tobacco use and alcohol consumption. Decrease in mortality may be due to improved diagnostic methods and accessibility to treatment, yet disparity in trend remains potentially because of differences in the level of access to surgical care. Disparities in temporal trends across countries may require further research and exploration to determine other underlying factors influencing this.

Poor oral health influences head and neck cancer patient survival: an International Head and Neck Cancer Epidemiology Consortium pooled analysis

BACKGROUND

Poor oral health has been identified as a prognostic factor potentially affecting the survival of patients with head and neck squamous cell carcinoma. However, evidence to date supporting this association has emanated from studies based on single cohorts with small-to-modest sample sizes.

METHODS

Pooled analysis of 2449 head and neck squamous cell carcinoma participants from 4 studies of the International Head and Neck Cancer Epidemiology Consortium included data on periodontal disease, tooth brushing frequency, mouthwash use, numbers of natural teeth, and dental visits over the 10 years prior to diagnosis. Multivariable generalized linear regression models were used and adjusted for age, sex, race, geographic region, tumor site, tumor-node-metastasis stage, treatment modality, education, and smoking to estimate risk ratios (RR) of associations between measures of oral health and overall survival.

RESULTS

Remaining natural teeth (10-19 teeth: RR = 0.81, 95% confidence interval [CI] = 0.69 to 0.95; ≥20 teeth: RR = 0.88, 95% CI = 0.78 to 0.99) and frequent dental visits (>5 visits: RR = 0.77, 95% CI = 0.66 to 0.91) were associated with better overall survival. The inverse association with natural teeth was most pronounced among patients with hypopharyngeal and/or laryngeal, and not otherwise specified head and neck squamous cell carcinoma. The association with dental visits was most pronounced among patients with oropharyngeal head and neck squamous cell carcinoma. Patient-reported gingival bleeding, tooth brushing, and report of ever use of mouthwash were not associated with overall survival.

CONCLUSIONS

Good oral health as defined by maintenance of the natural dentition and frequent dental visits appears to be associated with improved overall survival among head and neck squamous cell carcinoma patients.

Malignant tumors affecting the head and neck region in ancient times: Comprehensive study of the CRAB Database

In the modern world, cancer is a growing cause of mortality, but archeological studies have shown that it is not exclusive to modern populations. The aim of this study is to examine the epidemiologic, social, and clinicopathologic features of head and neck cancers in ancient populations. To do this, we extracted all records that described malignant lesions in the head and neck region available in the Cancer Research in Ancient Bodies Database (CRAB). The estimated age, sex, physical condition of the remains (skeletonized, mummified), anatomic location of tumors, geographic location, chronology, tumor type, and methods of tumor diagnosis were collected. One hundred and sixty-seven cases were found, mostly originating from Europe (51.5%). Most records were of adults between 35 and 49 years of age (37.7%). The most involved site was the skullcap (60.4%), and the most common malignancies were metastases to the bone (65.3%) and multiple myeloma (17.4%). No primary soft tissue malignancies were registered. The results of our study indicate that head and neck cancers were present in ancient civilizations, at least since 500,000 BCE. The available data can help to improve the current understanding of the global distribution of head and neck cancer and its multidimensional impacts on populations in the contemporary world.

Analysis of correlative risk factors for radiation-induced hypothyroidism in head and neck tumors

OBJECTIVE

The aim of the study is to identify clinical and dosimetric factors that could predict the risk of radiation-induced hypothyroidism(RIHT) in head and neck cancer(HNC) patients following intensity-modulated radiotherapy(IMRT).

METHODS

A total of 103 HNC patients were included in our study. General clinical characteristic and dosimetric data of all recruited patients were analyzed, respectively. The univariate and multivariate logistic regression anlalysis were successively conducted to identify optimal predictors, which aim to construct the nomogram. And the joint prediction was performed.

RESULTS

The incidence of patients with HNC was 36.9% (38/103). Among the clinical factors, gender, N stage, chemotherapy, frequency of chemotherapy and surgery involving the thyroid were related to RIHT. Logistic regression analysis showed that thyroid volume, Dmean, VS45, VS50, VS60 and V30,60 were independent predictors of RIHT, which were also incorporated in the nomogram. An AUC of 0.937 (95%CI, 0.888-0.958) also was showed outstanding resolving ability of the nomogram. When the volume of the thyroid was greater than 10.6 cm3, the incidence of RIHT was 14.8%, and when the volume of the thyroid was equal to or smaller than 10.6 cm3, the incidence was 72.5%. The incidence rates of RIHT in the group with VS60≦8.4cm3 and VS60 > 8.4cm3 were 61.4% and 19.3%, respectively.

CONCLUSIONS

Thyroid volume and thyroid VS60 are independent predictors of RIHT in patients with HNC. Moreover, more attention should be paid to patients with thyroid volume ≤ 10.6cm3. Thyroid VS60 > 8.4cm3 may be a useful threshold for predicting the development of RIHT. The nomogram conducted by the research may become a potential and valuable tool that could individually predict the risk of RIHT for HNC patients.

Pattern and trend of cancer in Saurashtra region in Gujarat state of India, a hospital-based study

BACKGROUND

Cancer is growing concern for every country. Reliable data is a source to define the magnitude of the problem, which then helps to plan for necessary action. This epidemiological study involves the collection and analysis of hospital registry data to assess the quantum of the problem of cancer over a five-year period from 2012-16 and to plan priority action.

MATERIALS AND METHODS

Hospital-based data for five years from 2012-2016 was retrieved from the department of radiotherapy at M. P. Shah Government Medical College, Jamnagar, Gujarat, India, and analysed to define the magnitude of the problem. All data was studied using Microsoft Excel 2016.

RESULTS

A total of 7355 patients were registered between 2012 and 2016, out of which 62 percent were male. Cancers of the cervix and uterus were discernibly less common in the Saurashtra region and accounted for only 12.37% of all cancers in females. Lung cancer was the leading cancer as a single site in males (24.13% of all cancers in males) and breast cancer in females (37.36% of all cancers in females). Head and neck cancer, all sites clubbed, was most common in males (42%). Jamnagar taluka represented around 50% of all cases at the study center.

CONCLUSION

Tobacco-related cancers were most common in the male population, and stringent implementation of a national tobacco control program is the most appropriate measure to curtail incidences and hence mortality in this male population. Non-modifiable risk factors like gender-related cancer were more common in the female population, and resource-appropriate screening is a suitable option for these diseases. A population-based cancer registry is required to further define the pattern pertinently, or an epidemiological study is required to find causes of the noticeably lower incidence of cancer of the cervix,.

Differences in presentation, treatment, and outcomes among minority head and neck cancer patient groups in Los Angeles County

IMPORTANCE

While minorities represent around 20 % of all HNC patients, these demographics are largely understudied. Furthermore, trends in national studies may not always be fully replicated in locoregional populations, indicating a need for more nuanced study.

OBJECTIVE

To better understand our patient population, we sought to understand differences in presentation, management, and outcome between Caucasians and minority groups with HNC.

DESIGN

Retrospective cohort analysis of the Los Angeles County Surveillance Epidemiology and End Results (SEER) database.

SETTING

Los Angeles County.

PARTICIPANTS

All patients in Los Angeles County diagnosed with cancer of the head and neck from January 1, 1988 to December 31, 2018.

MAIN OUTCOMES AND MEASURES

The primary outcome in our study was significant differences between racial and ethnic groups in age of diagnosis, sex, socioeconomic quintile, insurance status, stage at diagnosis, treatment modality, time to first treatment, and cancer-specific cause of death.

RESULTS

Our 18,510-patient cohort was largely male (64.35 %), white (69.57 %), and were on average 62.84 years old (SD = 20.07). When stratifying patients by race and ethnicity, significant differences were found in average age at diagnosis, sex, socioeconomic quintile, insurance status, and stage at diagnosis, treatment modalities utilized, and time to first treatment (all p < 0.001). Relative to all other head and neck patients, minority groups were significantly younger, had lower proportions of male patients, were less likely to pursue surgery, were more likely to pursue chemotherapy or radiation, and endorsed longer time to first treatment (all p < 0.001). The distribution of socioeconomic quintile (all p < 0.001), insurance status (all p < 0.001), and stage at diagnosis (all p < 0.05) also significantly varied between minority and reference groups. Only African Americans exhibited significantly higher rates of cancer-specific cause of death relative to non-African Americans (p < 0.001).

CONCLUSIONS AND RELEVANCE

Pervasive socioeconomic disparities between Caucasian HNC patients and those of other minority racial and ethnic groups in Los Angeles County that likely and significantly impact the diagnosis and management of HNC and its resultant outcomes. We encourage others to similarly examine their local populations to tailor the quality of care provided to patients.

Analyzing County-level Social Vulnerabilities of Head and Neck Melanomas in the United States

OBJECTIVES

Studies addressing social determinants of health (SDH) in head-neck melanomas (HNM) have only assessed incidence with increasing socioeconomic status. None have investigated a wider scope of SDH or their summed influence on affecting HNM prognosis and follow-up care.

METHODS

This retrospective cohort study analyzed 374,138 HNM in adults from 1975 to 2017 from the NCI-Surveillance, Epidemiology, and End Results Program (NCI-SEER) database. Utilizing the NCI-SEER database, Social Vulnerability Index (SVI) scores were matched to county of residence upon diagnosis. Univariate linear regressions were performed on length of care (months of follow-up/surveyed) and prognosis (months survival) across various SDH/SVI scores of socioeconomic status, minority and language status, household composition, housing and transportation, and their total composite.

RESULTS

With increasing overall SVI score, which indicates increasing social vulnerability, months of follow-up showed significant decreases ranging from 0.04% to 27.63% compared with the lowest vulnerability groups, with the highest differences in nodular melanomas and the lowest with malignant melanomas in giant pigmented nevi. Similarly, months survival significant decreases ranged from 0.19% to 39.84% compared with the lowest SVI scores, with the highest difference in epithelioid cell melanomas and the lowest in amelanotic melanoma. Comprising this overall score trend, decreases with socioeconomic status, minority-language status, household composition, and housing-transportation contributed differentially per histology subtype.

CONCLUSIONS

Our data highlight significant negative trends in HNM prognosis and care with higher total social vulnerability while showing which SDH-themes quantifiably contribute more to these differences.

LEVEL OF EVIDENCE

3 Laryngoscope, 134:185-190, 2024.

Clinical Value of Endoscopic Esophageal Screening in Head and Neck Squamous Cell Carcinoma Patients

OBJECTIVE

To investigate the clinical benefit of routine esophageal screening in newly diagnosed head and neck squamous cell carcinoma (HNSCC) patients.

STUDY DESIGN

Retrospective cohort study.

SETTING

Tertiary medical center.

METHODS

This retrospective study selected newly diagnosed HNSCC patients from the Chang Gung Research Database between January 2007 and December 2019. Patients who underwent endoscopic esophageal examinations within 2 months of the initial diagnosis of HNSCC were included in the screening group. The clinical outcomes of the screening and nonscreening groups were analyzed.

RESULTS

In total, 13,627 HNSCC patients were included, comprising 1032 females and 12,640 males (mean age 55.0 years), and the esophageal screening group included 7033 (51.4%) patients. The prevalence rate of esophageal tumors was 4.5%. Hypopharyngeal cancer patients were the most likely to have (13.4%) second primary esophageal tumors. The American Joint Committee on Cancer stage of the esophageal tumor was lower in the esophageal screening group than in the nonesophageal screening group. The oral, oropharyngeal, and hypopharyngeal cancer patients in the esophageal screening group had better survival outcomes than their counterparts in the nonesophageal screening group.

CONCLUSION

Endoscopic esophageal screening of newly diagnosed HNSCC patients can detect esophageal tumors at an early stage and improve overall survival. Esophageal screening could be a routine survey in HNSCC patients, particularly those with lifestyle risk factors and in countries with a high prevalence of esophageal cancer.

Risk of head and neck cancer among opium users

OBJECTIVE

The scientific literature presents conflicting data on a possible causal relationship between opium users and the development of head and neck cancer (HNC). This study aimed to explore the risk of HNC among opium users is a narcotic addictive drug.

DESIGN

A systematic review and meta-analysis encompassed academic databases and gray literature up to May 2023, focusing on epidemiologic observational studies that reported the effect size of the HNC risk and opium use.

RESULTS

This study incorporated 14 effect size estimations to examine the association between opium use and the risk of head and neck cancers based on various HNC sub-sites, including the lip and oral cavity, pharynx, and larynx. The random effect model revealed a significant correlation between combined HNCs and opium use (odds ratio [OR]: 4.88; 95 % confidence interval [CI]: 2.99, 7.96). Additionally, opium consumption significantly increased the incidence of lip and oral cavity cancers (OR: 1.82; 95 % CI: 1.25, 2.65). Opium users faced an approximately eightfold increase in laryngeal cancer risk (OR: 7.86; 95 % CI: 4.66, 13.24) compared to non-opium users.

CONCLUSIONS

In summary, our findings strongly suggest that opium use is emerging as a significant risk factor for HNC. This underscores the need for further research and focused preventive measures to address this concerning association.

Stratifying risk of malignancy in cystic lateral neck lumps: a multivariant analysis of demographic, radiological and histological investigation factors and the development of a patient-centred risk-predictive tool for malignancy

BACKGROUND

Management of lateral cystic neck masses with no apparent upper aerodigestive tract primary tumour in adults is controversial. Imaging modalities and fine needle aspiration cytology often struggle to distinguish the presence of malignancy.

METHOD

This study entailed a multicentre retrospective review of all patients with isolated lateral cystic neck masses from 2012 to 2018 in three Welsh health boards, utilising demographic data and first-line investigations (ultrasound scanning and fine needle aspiration cytology) to develop an evidence-based predictive tool for risk of malignancy.

RESULTS

It was found that 29.1 per cent of cystic lesions were malignant on final histology. Age, male gender, non-benign ultrasound scan findings and fine needle aspiration cytology were significant risk factors on univariate analysis. The final multivariate analysis predicted a risk of malignancy ranging from 2.1 to 65.0 per cent depending on the covariate pattern. Smoking status was non-significant.

CONCLUSION

A rigorous, risk-stratified approach to the management of these patients should aid the clinician in minimising morbidity and optimising resources.

Association of the cytochrome P450 and arylamine N-acetyltransferase gene polymorphisms with the incidence of head and neck cancer in Polish population

OBJECTIVES

Head and neck cancer (HNC) is one of the most common cancers. Most exogenous HNC is head and neck squamous cell carcinomas. Scientists are striving to develop diagnostic tests that will allow the prognosis of HNC. The aim of the study was to determine the risk of HNC. The research concerned changes caused by polymorphisms in genes encoding proteins responsible for the metabolism of xenobiotics.

MATERIAL AND METHODS

In group of 280 patients with HNC, the occurrence of polymorphic variants in NAT1(rs72554606), NAT2(rs1799930), CYP1A(rs1799814), CYP2D(rs3892097) were studied with TaqMan technique. The control group consisted of 260 cancer free people. The TNM scale was analyzed. Gene interactions of genotyped polymorphisms were investigated. The effects of smoking and alcohol consumption on HNC were assessed.

RESULTS

The results indicated an increased risk of HNC in NAT1 polymorphisms in the GC genotype (OR = 1.772, 95% CI: 1.184-2.651, p = 0.005) and NAT2 polymorphism in the GA genotype (OR = 1.506, 95% CI: 1.023-2.216, p = 0.037). The protective phenomenon in the CYP1A polymorphism the GT genotype (OR = 0.587, 95% CI: 0.381-0.903, p = 0.015) and the TT genotype (OR = 0.268, 95% CI: 0.159-0.452, p = 0.001). The coexistence of GA-GC polymorphisms (OR = 2.687, 95% CI: 1.387-5.205, p = 0.003) in NAT2-NAT1 genes increases the risk of HNC. Risk-reducing effect in the polymorphism GG-GT (OR = 0.340, 95% CI: 0.149-0.800, p = 0.011), GG-TT (OR = 0.077, 95% CI: 0.028-0.215, p < 0.0001), GA-TT (OR = 0.250, 95% CI: 0.100-0.622, p = 0.002), AA-GT (OR = 0.276, 95% CI: 0.112-0.676, p = 0.002) in NAT2-CYP1A genes. In the CYP2D-CYP1A genes in the polymorphisms CT-CC (OR = 0.338, 95% CI: 0.132-0.870, p = 0.020), TT-GG (OR = 0.100, 95% CI: 0.027-0.359, p = 0.001), TT-GC (OR = 0.190, 95% CI: 0.072-0.502, p = 0.0004), TT-CC (OR = 0.305, 95% CI: 0.107-0.868, p = 0.024). Correlation was noted between cigarette smoking and HNC (OR = 7.297, 95% CI: 4.989-10.674, p < 0.0001) and consuming alcohol (OR = 1.572, 95% CI: 1.003-2.464, p = 0.047).

CONCLUSIONS

The CYP1A polymorphism shows a protective association with HNC. On the other hand, NAT2, NAT1 polymorphism influence the susceptibility to developing HNC. The coexistence of the NAT2-NAT1 genotypes increases the risk of HNC. In contrast, NAT1-CYP1A and CYP1A-CYP2D reduce this risk. Smoking and alcohol consumption increase the incidence of HNC. Int J Occup Med Environ Health. 2023;36(6):812-24.

Insights into head and neck cancer research in Egypt: A scoping review

BACKGROUND

Head and neck cancer (HNC) encompasses malignant tumors in areas like the oral cavity, pharynx, and larynx. This analysis identifies strengths and deficiencies in HNC research, aiming to improve published papers' quality, quantity, and diversity. It also encourages more participation from oncologists, particularly in Egypt, to bridge the gap with Western healthcare standards.

METHODS

A systematic search was conducted in databases including PubMed, Scopus, Web of Science, and Embase. The goal was to gather research articles on HNC in Egypt published from January 1, 2000, to December 31, 2022.

RESULTS

From 2150 articles, 1329 were screened by title and abstract, leading to 193 for full-text review. Finally, 174 articles were included in the final analysis. 2020 saw the highest number of publications. The majority were primary research articles, with randomized controlled trials being prevalent. Most studies were clinical, focusing on radiotherapy, and involved adult patients, emphasizing service delivery. Publications were predominantly in non-Egyptian journals, with the Egyptian Journal of Radiology and Nuclear Medicine being the most frequent. Research was mainly conducted by Egyptian authors and at Cairo University.

CONCLUSION

The growing prevalence of HNC in Egypt underscores the need for more comprehensive research on its various aspects, including etiology, risk factors, and prevention. There's a call for increased research outputs at different Egyptian universities, multicenter studies, and international collaborations. This approach can improve the understanding and management of HNC, contributing to global discussions and advancing treatment and prevention strategies in Egypt.

Regional outcome disparities in German head and neck cancer patients: Shorter survival in Eastern Germany

INTRODUCTION

Demographics are important prognostic factors in malignant diseases. A nationwide analysis concerning the prognostic impact of demographics in head and neck cancer (HNC) patients (HNCP) has not been performed previously.

METHODS

A retrospective analysis of data from the Center for Cancer Registry Data (ZfKD) and the Federal Statistical Office (Destatis) between 2002 and 2017 was performed. A total of 212'920 HNCP were included. Incidence, tumor stage, age development, sex distribution, age-, residence-, and diagnosis-time-specific survival were examined.

RESULTS

Mean age of HNCP increased more rapidly than in the general population (slope coefficient: 0.29 vs. 0.20; p < 0.0001). Higher age and male sex were associated with a worse prognosis. Whereas overall survival (OS) increased from the early to the later observation period for HNCP <70 years, no OS improvement for HNCP >70 years was found. Furthermore, an OS disadvantage was observed for East Germany compared to West Germany (median 47 vs. 60 months; p < 0.0001). This disparity was associated with a disproportionately high ratio of men in East Germany (men/women: 4.4 vs. 3.1; p < 0.0001) and a lower mean age (61 vs. 63 years; p < 0.0001). In addition to stage, age and sex, residence in East Germany were confirmed as an independent factor for OS in a multivariate analysis.

CONCLUSION

Finally, three decades after the German reunion, a survival disadvantage for patients in East Germany still exists. This discrepancy may be a result of socioeconomic disparities.

Effects of COVID-19 pandemic on hospital visit of head and neck cancer patients

OBJECTIVE

Head and neck cancer (HNC) often causes respiratory symptoms, so diagnostic delays due to COVID-19 are anticipated. Especially, our institute is a designated medical institute for Class 1 specified infectious diseases, and most of the severe COVID-19 patients in this region were preferentially admitted or transferred. Hereby, we evaluated the trends of the numbers, primary sites and clinical stages of HNC patients before and after COVID-19 pandemic.

METHODS

A retrospective analysis of all patients diagnosed and treated for HNC from 2015 to 2021 was performed. Especially, 309 cases between 2018 and 2021 were extracted in order to examine a direct impact of COVID-19 pandemic, which were dichotomized into "Pre" group in 2018-2019 and "COVID" group in 2020-2021. They were compared about the distribution of clinical stage, the period between onset of symptom and hospital visit.

RESULTS

HNC patients decreased by 38% in 2020 and by 18% in 2021 compared to average number of patients from 2015 to 2019. Patients of stage 0 and 1 in "COVID" group significantly decreased compared to that in "Pre" group. Cases performed emergent tracheostomy in hypopharyngeal cancer and laryngeal cancer increased in "COVID" group (10.5% vs 1.3%).

CONCLUSION

Patients with slight symptoms would hesitated to visit hospital after COVID-19, and only a few delays of HNC diagnosis could have increased tumor burden and caused narrowed airway, especially in advanced HPC and LC.