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1.
Facial Plast Surg ; 38(2): 173-176, 2022 Apr.
Article in English | MEDLINE | ID: mdl-35691292

ABSTRACT

The desire for longevity, beauty, and health is as old as the history of human culture. Minimizing tissue damage and invasive surgeries has led to a variety of options in the 21st century medicine. In the past 20 years, hyaluronic acid filler injections have thus become a popular modality of treatment for facial rejuvenation due to low costs for patients with immediately visible results. Ideally, the treated face looks natural. We aim at stopping time, maybe tweaking the handles of our clocks a bit backward to counteract aging processes, but creating a natural look and maintaining the individual appearance.


Subject(s)
Cosmetic Techniques , Skin Aging , Face , Humans , Hyaluronic Acid/therapeutic use , Rejuvenation
2.
Laryngoscope Investig Otolaryngol ; 6(3): 496-502, 2021 Jun.
Article in English | MEDLINE | ID: mdl-34195371

ABSTRACT

OBJECTIVE: Investigation of the gustatory function in a large cohort of cochlear implanted patients using lateralized taste-strip tests. PATIENTS AND METHODS: One hundred and seven unilaterally or bilaterally profoundly hearing impaired or deaf patients who received cochlear implants (n = 113) were included in this study. Data on gustometry, subjective gustatory dysfunction, and the detailed surgical procedure were acquired retrospectively. Gustatory function, assessed using lateralized taste-strip tests, was performed the day before, 3 days after cochlear implantation, and on the day of the initial CI adjustment (39 days ±7.3 SD). RESULTS: Averaged taste-strip scores of the cohort declined significantly from preoperatively 12.3 [11.8; 12.7] (mean [95% confidence intervals]) to 10.5 [9.7; 11.2] on the implanted side about 6 weeks after surgery. Patients with intraoperatively exposed and rerouted, or a severed, chorda tympani nerve (CTN) showed significantly reduced unilateral postoperative scores (10.1 [8.8; 11.4] and 9.3 [8.1; 10.5], respectively), when compared to not exposing or to leaving a bony layer over the CTN. Total taste-strip test scores showed a significant decline 6 weeks postoperatively in CI-patients expressing a subjective gustatory dysfunction (from 23.6 [21.4; 25.8] to 17.5 [14.2; 20.8]), as opposed to patients with a documented subjectively normal taste. CONCLUSION: We consider postoperative gustatory dysfunction as a relevant side effect post cochlear implantation, at least within the first month. Taste-strip based gustometry is a suitable diagnostic tool to assess taste function in CI patients and is recommended to be performed routinely. LEVEL OF EVIDENCE: 3, retrospective, nonrandomized follow-up study.

3.
J Cosmet Dermatol ; 19(8): 1829-1837, 2020 Aug.
Article in English | MEDLINE | ID: mdl-32506541

ABSTRACT

BACKGROUND: The novel coronavirus (COVID-19) pandemic is expected to last for an extended time, making strict safety precautions for office procedures unavoidable. The lockdown is going to be lifted in many areas, and strict guidelines detailing the infection control measures for aesthetic clinics are going to be of particular importance. METHODS: A virtual meeting was conducted with the members (n = 12) of the European Academy of Facial Plastic Surgery Focus Group to outline the safety protocol for the nonsurgical facial aesthetic procedures for aesthetic practices in order to protect the clinic staff and the patients from SARS-CoV-2 infection. The data analysis was undertaken by thematic and iterative approach. RESULTS: Consensus guidelines for nonsurgical facial aesthetic procedures based on current knowledge are provided for three levels: precautions before visiting the clinic, precautions during the clinic visit, and precautions after the clinic visit. CONCLUSIONS: Sound infection control measures are mandatory for nonsurgical aesthetic practices all around the world. These may vary from country to country, but this logical approach can be customized according to the respective country laws and guidelines.


Subject(s)
Coronavirus Infections/prevention & control , Cosmetic Techniques/standards , Dermatology/standards , Infection Control/standards , Pandemics/prevention & control , Pneumonia, Viral/prevention & control , Practice Guidelines as Topic , Betacoronavirus/pathogenicity , COVID-19 , Consensus , Coronavirus Infections/epidemiology , Coronavirus Infections/transmission , Coronavirus Infections/virology , Esthetics , Face , Female , Focus Groups , Health Personnel/standards , Humans , Infectious Disease Transmission, Patient-to-Professional/prevention & control , Infectious Disease Transmission, Professional-to-Patient/prevention & control , Male , Pneumonia, Viral/epidemiology , Pneumonia, Viral/transmission , Pneumonia, Viral/virology , Rejuvenation , SARS-CoV-2
4.
Laryngorhinootologie ; 98(5): 312-324, 2019 May.
Article in German | MEDLINE | ID: mdl-31090051

ABSTRACT

The need for objective assessment of nasal patency in the fields of rhinosurgery and allergy has led to the development of various methods for the evaluation of nasal patency. These methods include active anterior rhinomanometry, PNIF, acoustic rhinometry, rhinostereometry, optical rhinometry, minimal cross-sectional area endoscopy, nasal sound spectral analysis, magnetic resonance imaging and numerical flow simulation. This article provides a brief overview of currently common procedures.


Subject(s)
Nasal Obstruction , Cross-Sectional Studies , Humans , Nose , Rhinomanometry , Rhinometry, Acoustic
6.
Facial Plast Surg ; 35(1): 14-22, 2019 Feb.
Article in English | MEDLINE | ID: mdl-30759457

ABSTRACT

A clinical study was conducted to determine the effect of nasal valve lift treatment using absorbable, polylactic acid, self-retaining cone threads (Silhouette Soft) in patients with nasal valve stenosis. Sixty patients (n = 60) were included in this prospective study which was performed from January 2015 until December 2018, 19 patients dropped out due to noncompliance. Initially, participants were divided into two equal groups. One was treated by nasal valve lift only, the other additionally received turbinoplasty. A visual analog scale (VAS) was used to rate the sense of nasal ventilation. Patients' satisfaction was examined by a categorical scale, preoperatively, after 1 week, and after 1, 6, 12, 18, and 24 months. For statistical analysis, an univariant variance analysis was conducted to test the significance of differences in nasal breathing within one group at different points of postoperative controls, with the statistical significance set at p < 0.05. Moreover, the two groups were compared with each other regarding results of the categorical scale. After surgical treatment, an improvement is reported by all participants. Average VAS scores were significantly lower between preoperative and every postoperative rating. Although a decline in the effect of breathing improvement is recognizable as threads are dissolved, patients' satisfaction in improvement of nasal breathing is persistent in most cases, even at long-term observation. Overall, these results demonstrate that valve lift is an effective method to treat patients with nasal valve stenosis.


Subject(s)
Nasal Cavity/pathology , Nasal Obstruction/surgery , Rhinoplasty/methods , Sutures , Absorbable Implants , Adult , Aged , Airway Resistance , Constriction, Pathologic/physiopathology , Constriction, Pathologic/surgery , Female , Humans , Male , Middle Aged , Nasal Obstruction/physiopathology , Patient Satisfaction , Polyesters , Prospective Studies , Rhinoplasty/instrumentation , Turbinates/surgery , Visual Analog Scale , Young Adult
7.
J Sports Med Phys Fitness ; 59(4): 686-692, 2019 Apr.
Article in English | MEDLINE | ID: mdl-30009588

ABSTRACT

BACKGROUND: Allergic rhinitis has major impacts on sports performance of athletes. The present study aimed at determining the frequency of seasonal pollen allergy and analyzing the impacts of pollen allergy, the choice of allergy treatments and their benefits for sports performance in a group of professional and recreational athletes. METHODS: The study was conducted as a self-reported questionnaire survey. Subjects were recruited from the German Sport University and the Cologne Marathon 2014 during the peak pollen season of 2014. RESULTS: Athletes returned 636 completed questionnaires, 42.6% of participants reported suffering from a pollen allergy and 30.2% also suffered from asthma. Performance impairments were reported in more than 80% of allergic subjects. In all, 82.2% of subjects used symptomatic medications, 32.3% alternative therapies, and 47.6% allergen immunotherapy. Subjects who used immunotherapy had fewer impaired training bouts than those who used symptomatic and alternative therapies. The majority of subjects had concerns about allergy treatment such as side effects, negative impacts on sports performance and lack of long-term effects. CONCLUSIONS: This study confirmed a high prevalence of pollen allergy among German athletes. The majority of allergic rhinitis athletes were undertreated, and the reason could be their reservations about allergy treatments. Pollen allergy tremendously reduced sports performance of athletes during the pollen season. This impact can be lessened with proper treatment such as immunotherapy. Better understanding of available treatment modalities should be provided to patients and physicians to improve sports performance of athletes suffering from pollen allergy.


Subject(s)
Athletic Performance , Rhinitis, Allergic, Seasonal/physiopathology , Rhinitis, Allergic/physiopathology , Adult , Asthma , Athletes , Cross-Sectional Studies , Female , Germany , Humans , Male , Middle Aged , Prevalence , Surveys and Questionnaires , Young Adult
8.
Facial Plast Surg ; 34(6): 588-596, 2018 Dec.
Article in English | MEDLINE | ID: mdl-30593074

ABSTRACT

The current overview of laser radiation therapy options and the legal aspects of the head and neck region provides insight into the available laser hardware, discusses the indications and treatment options and risks, as well as the necessary precautions to be taken when operating a laser device. Further handling recommendations and requirements for the laser devices are drawn and the question of transferring tasks to nonmedical personnel is discussed. The reader should get an idea about the benefits and risks of using lasers in treating patients and be able to set the precise indication on the background of possibilities, adverse effects, and legal aspects.


Subject(s)
Laser Therapy/adverse effects , Safety , Skin/injuries , Cosmetic Techniques/adverse effects , Education, Medical, Graduate , Eye Injuries/etiology , Eye Injuries/prevention & control , Humans
9.
Facial Plast Surg ; 33(4): 365-366, 2017 08.
Article in English | MEDLINE | ID: mdl-28753708

Subject(s)
Nose , Humans , Nose/physiology
13.
Facial Plast Surg ; 31(5): 421-30, 2015 Oct.
Article in English | MEDLINE | ID: mdl-26579858

ABSTRACT

Beauty has been an intriguing issue since the evolving of a culture in mankind. Even the Neanderthals are believed to have applied makeover to enhance facial structures and thus underline beauty. The determinants of beauty and aesthetics have been defined by artists and scientists alike. This article will give an overview of the evolvement of a beauty concept and the significance of the facial profile. It aims at sharpening the senses of the facial plastic surgeon for analyzing the patient's face, consulting the patient on feasible options, planning, and conducting surgery in the most individualized way.


Subject(s)
Esthetics , Face , Art , Ethnicity , Humans
14.
Eur Arch Otorhinolaryngol ; 272(1): 195-205, 2015 Jan.
Article in English | MEDLINE | ID: mdl-24615648

ABSTRACT

Combined analysis of diagnostic and therapeutic management of neck metastases of carcinoma of unknown primary origin ('true CUP') in two European tertiary referral centers (University Medical Centers of Maastricht, NL and Cologne, D) to contribute to the ongoing discussion on management in CUP. Retrospective analysis of 29 (Maastricht) and 22 (Cologne) true cervical CUP syndrome patients (squamous cell carcinoma). The diagnostic and therapeutic approaches were correlated with clinical follow-up data and HPV status. In total, 48 out of 51 true CUP patients received postsurgical adjuvant radiotherapy. In eight patients from Cologne, this was combined with concomitant platin-based chemotherapy. Neither in Cologne nor in Maastricht, radiotherapy of the pharyngeal mucosa was commonly performed (n = 6, 12.5 %) The percentage of patients who were irradiated ipsilaterally or bilaterally did not differ between both institutes (N = 21/27 in Maastricht vs. 11/21 in Cologne), nor did the 5-year overall survival differ significantly. Oncogenic HPV was only found in 4 out of 51 CUPs (7, 8 %). Therefore, no relation with overall and recurrence-free survival could be detected. No occult primary tumors were revealed during follow-up despite de-escalation of therapy by abandoning irradiation of the pharyngeal mucosa in both institutes. There were no significant differences between ipsilateral and bilaterally irradiated patients regarding overall and recurrence-free survival. The occurrence of distant metastases was more often noticed in ipsilaterally treated patients as compared to bilaterally radiated patients (8 vs. 2, p = 0.099). Those patients all had been classified N2b or higher. International guidelines still are not unified and there is an urgent need for a consented therapeutic regimen. Comparison of two international strategies on the management of CUP patients is presented and further research is recommended regarding the role of radiotherapy of the pharyngeal axis, the value of unilateral and bilateral radiotherapy and the role of concomitant or induction chemotherapy in CUP patients, particularly in N2b or higher-staged neck disease. The prevalence and role of HPV in true CUP after thorough diagnostic work-up seem limited in our case series, particularly when compared to the role in oropharyngeal carcinomas.


Subject(s)
Carcinoma, Squamous Cell/secondary , Carcinoma, Squamous Cell/therapy , Disease Management , Head and Neck Neoplasms/secondary , Head and Neck Neoplasms/therapy , Neoplasms, Unknown Primary/therapy , Adult , Aged , Combined Modality Therapy , Europe , Female , Follow-Up Studies , Humans , Male , Middle Aged , Prognosis , Retrospective Studies , Squamous Cell Carcinoma of Head and Neck
15.
Facial Plast Surg ; 30(6): 628-34, 2014 Dec.
Article in English | MEDLINE | ID: mdl-25536129

ABSTRACT

The present article focuses on the peculiarities of polymethylmethacrylate as facial filler highlighting the injection technique, known adverse effects, and all options for complication management. Supplemented by a historical overview and case series, the authors share their experience with this widespread and in the last decade heavily criticized injectable filler substance.


Subject(s)
Biocompatible Materials/adverse effects , Facial Dermatoses/therapy , Granuloma/drug therapy , Polymethyl Methacrylate/adverse effects , Skin/pathology , Cosmetic Techniques , Face , Facial Dermatoses/chemically induced , Granuloma/chemically induced , Humans , Injections, Intradermal/adverse effects , Injections, Intradermal/methods , Microspheres , Necrosis/chemically induced , Necrosis/prevention & control , Necrosis/surgery , Skin Aging
16.
Article in English | MEDLINE | ID: mdl-25018646

ABSTRACT

AIM: To investigate the exact location and position of hyaluronic acid fillers in the perioral region by ultrasound and optical coherence tomography. INTRODUCTION: To date, there are few in vivo investigations in humans on the exact positioning of injectable hyaluronic acid fillers, and severe complications such as hematoma and thromboembolism are rarely addressed. MATERIALS AND METHODS: There were nine female patients investigated in this pilot study. All of them were periorally injected with hyaluronic acid. The exact product, amount, and locations, as well as the injection techniques, were recorded and compared. Before, immediately after, and 18 days after injection, photo documentation as well as high-resolution ultrasonography and optical coherence tomography of the lip surface were performed. RESULTS: Minor bruising occurred, which resolved within 7 to 9 days. On day 18, no more hemorrhage could be detected. Injected material distributed well in the tissue, and no embolism or thrombosis occurred. However, the injected material came close (up to 1 mm) to important structures such as blood vessels. Lip wrinkles improved, and the lip surface was smoother and more even. CONCLUSION: Hyaluronic acid injections can improve aesthetics and reduce fine wrinkles of the lips. In the patients investigated in this study, compression of structures such as vessels and nerve fibers did not occur, nor did any severe complications result from injection. However, one must be aware of serious complications (eg, hematoma, thromboembolism) and the important anatomic structures (eg, orbicularis oris muscle, vessels, and nerves), and injecting physicians should always have hyaluronidase as a rescue medication at hand. SUMMARY: Hyaluronic acid is a suitable tool for lip augmentation and reduction of fine lines; however, one must be aware of anatomic structures when injecting filler material into the lips and perioral area, and be familiar with the injection techniques.

17.
Eur Arch Otorhinolaryngol ; 271(9): 2443-54, 2014 Sep.
Article in English | MEDLINE | ID: mdl-24390040

ABSTRACT

It has been suggested that certain odorants positively affect mood, but this has not yet been scientifically tested in humans. The aim of the current study was to demonstrate the feasibility of a new odorant applicator and to assess the effects of nocturnal intermittent rose odorant application on mood, and quality of sleep and dreams in depressed female inpatients. We hypothesised that mood as primary outcome will improve. Twenty-seven normosmic, 18- to 49-year-old female, depressed inpatients were investigated in a randomised, placebo-controlled, crossover study. Exclusion criteria were rhinitis, hyp- or anosmia. During sleep, an interval-controlled, inspiration-triggered applicator added rose concentrate to the inspirated air. There were three consecutive nights of each odorant and placebo application and a wash-out phase. Patients completed standardised questionnaires on mood, dreams, and sleep quality. Four patients dropped out (n = 1: non-compliance in filling in the questionnaires, n = 3: intolerance of nasal tube). Otherwise, this novel odorant applicator was well tolerated. Application of the odorant showed no significant mood differences between rose and placebo, however, some subdomains of sleep quality and mood showed a positive trend towards improvement by rose application. The feasibility of this new device and of nasal tubes could be shown. Odorant application is well tolerated. It may have a positive influence on quality of mood and sleep in depressed patients. A longer application phase is planned to obtain convincing evidence for our hypothesis.


Subject(s)
Aromatherapy , Depression , Rosa , Adult , Affect , Aromatherapy/methods , Aromatherapy/psychology , Cross-Over Studies , Depression/psychology , Depression/therapy , Double-Blind Method , Female , Humans , Inpatients , Middle Aged , Odorants , Quality of Life , Sleep , Surveys and Questionnaires , Treatment Outcome
18.
Oral Oncol ; 50(1): 27-31, 2014 Jan.
Article in English | MEDLINE | ID: mdl-24169586

ABSTRACT

BACKGROUND: Oncogenic human papillomaviruses (HPV) are known to be associated with carcinomas of the uterine cervix. Furthermore, current studies have shown that HPV-infection is also associated with a subtype of oropharyngeal cancers. In general, a sexual transmission of the viruses has been shown by numerous studies in the genital lesions. However, there are unknown factors regarding the prevalence and transmission of HPV in the oropharynx. The aim of this study was to evaluate HPV prevalence in the oropharynx in female participants with and without genital HPV infection. In addition, we analyzed risk factors for an oropharyngeal colonization with HPV in their sexual partners, too. METHODS: 129 Female participants were tested for presence of HPV-DNA by oral lavage, brush cytology of the tonsils and of the cervix. In addition, 15 male partners of these patients were included in the study. HPV-DNA was detected by PCR (polymerase chain reaction) amplification. For HPV-genotyping, PCR products were hybridized with type-specific digoxigenin-labeled oligonucleotide probes and discriminated into 14 high risk (HR) and 6 low risk (LR)-HPV types. The 129 female and 15 male participants were interviewed by a standardized questionnaire for socioeconomic details, drinking, smoking and sexual behaviours. RESULTS: 59 (45.7%) Female participants were negative for a genital HPV-infection. Of these women, 3 (5.1%) showed a positive HPV-PCR result (HR and LR) in the oropharynx. 70 (54.3%) Female participants were positive for a genital HPV infection. In this group, 4 (5.7%) had a positive HPV-detection (HR and LR) in the oral cavity and oropharynx. Female participants with cervical HPV-infection had no higher risk for HPV-detection in the oropharynx (not significant). The analysis of sexual risk factors revealed no specific risk factor for an oral HPV-infection. CONCLUSION: A correlation between cervical and oral colonization by HPV could not be demonstrated in our small cohort. Our limited data suggest that sexual transmission of HPV from the cervix uteri to the oropharynx is a rare and unlikely event.


Subject(s)
Alphapapillomavirus/isolation & purification , Mouth Diseases/diagnosis , Tumor Virus Infections/diagnosis , Uterine Cervical Neoplasms/diagnosis , Female , Humans , Mouth Diseases/epidemiology , Mouth Diseases/virology , Polymerase Chain Reaction , Prevalence , Risk Factors , Tumor Virus Infections/epidemiology , Tumor Virus Infections/virology , Uterine Cervical Neoplasms/epidemiology , Uterine Cervical Neoplasms/virology
19.
PLoS One ; 8(2): e57207, 2013.
Article in English | MEDLINE | ID: mdl-23437342

ABSTRACT

Juvenile-onset recurrent respiratory papillomatosis (RRP) is associated with low risk human papillomavirus (HPV) types 6 and 11. Malignant transformation has been reported solely for HPV11-associated RRP in 2-4% of all RRP-cases, but not for HPV6. The molecular mechanisms in the carcinogenesis of low risk HPV-associated cancers are to date unknown. We report of a female patient, who presented with a laryngeal carcinoma at the age of 24 years. She had a history of juvenile-onset RRP with an onset at the age of three and subsequently several hundred surgical interventions due to multiple recurrences of RRP. Polymerase chain reaction (PCR) or bead-based hybridization followed by direct sequencing identified HPV6 in tissue sections of previous papilloma and the carcinoma. P16(INK4A), p53 and pRb immunostainings were negative in all lesions. HPV6 specific fluorescence in situ hybridization (FISH) revealed nuclear staining suggesting episomal virus in the papilloma and a single integration site in the carcinoma. Integration-specific amplification of papillomavirus oncogene transcripts PCR (APOT-PCR) showed integration in the aldo-keto reductase 1C3 gene (AKR1C3) on chromosome 10p15.1. ArrayCGH detected loss of the other gene copy as part of a deletion at 10p14-p15.2. Western blot analysis and immunohistochemistry of the protein AKR1C3 showed a marked reduction of its expression in the carcinoma. In conclusion, we identified a novel molecular mechanism underlying a first case of HPV6-associated laryngeal carcinoma in juvenile-onset RRP, i.e. that HPV6 integration in the AKR1C3 gene resulted in loss of its expression. Alterations of AKR1C gene expression have previously been implicated in the tumorigenesis of other (HPV-related) malignancies.


Subject(s)
3-Hydroxysteroid Dehydrogenases/genetics , Carcinoma/genetics , Cell Transformation, Neoplastic/genetics , Human papillomavirus 6/genetics , Hydroxyprostaglandin Dehydrogenases/genetics , Laryngeal Neoplasms/genetics , Papilloma/genetics , Adult , Age of Onset , Aldo-Keto Reductase Family 1 Member C3 , Carcinoma/pathology , Cell Transformation, Neoplastic/pathology , Cyclin-Dependent Kinase Inhibitor p16/genetics , Down-Regulation , Fatal Outcome , Female , Human papillomavirus 6/pathogenicity , Humans , Laryngeal Neoplasms/pathology , Papilloma/pathology , Retinoblastoma Protein/genetics , Tumor Suppressor Protein p53/genetics
20.
Head Neck ; 35(11): 1521-6, 2013 Nov.
Article in English | MEDLINE | ID: mdl-23345170

ABSTRACT

BACKGROUND: Carcinoma of unknown primary (CUP) of the neck are heterogeneous tumors in their clinical and biological characteristics, and a preoperative prognostic marker is desirable to optimize staging and therapy and to improve outcome and survival. For CUP syndrome, no optimized diagnostic and treatment strategy or biomarker have yet been determined. METHODS: Forty-seven patients presenting with CUP syndrome were analyzed after thorough standard diagnostic staging procedures. All patients were surgically treated with tonsillectomy, neck dissection of the diseased neck, as well as adjuvant chemoradiation. The tissue of lymph node metastases (and, if found, of the primary tumor) was analyzed regarding expression of p16, epidermal growth factor receptor (EGFR), and presence of human papillomavirus (HPV) DNA. RESULTS: In 39% of all cases (20 of 47), the primary cancer was found during diagnostic workup. If HPV DNA was detected in the neck lymph node metastasis, the primary cancer was significantly more frequently found in the oropharynx (p = .002). Patients with a p16-positive tumor had a significantly higher 5-year overall survival (OS; 33% vs 69%; p = .045, disease-free survival [DSF] 77% vs 89%; p = not significant [NS]). Patients with p16-positive neck metastasis and no detectable primary cancer had a better prognosis. Expression of EGFR in this series did not have a significant effect on prognosis. CONCLUSION: In patients presenting with CUP syndrome, p16 immunohistochemistry can serve to locate the primary cancer in the oropharynx. It is a positive prognostic indicator in patients with those heterogeneous cancers.


Subject(s)
Biomarkers, Tumor/analysis , Gene Expression Regulation, Neoplastic , Neoplasm Proteins/analysis , Neoplasms, Unknown Primary/chemistry , Neoplasms, Unknown Primary/pathology , Oropharyngeal Neoplasms/chemistry , Oropharyngeal Neoplasms/secondary , Adult , Aged , Aged, 80 and over , Biopsy, Needle , Chemoradiotherapy/methods , Cohort Studies , Combined Modality Therapy , Cyclin-Dependent Kinase Inhibitor p16 , Disease-Free Survival , ErbB Receptors/metabolism , Female , Head and Neck Neoplasms/chemistry , Head and Neck Neoplasms/mortality , Head and Neck Neoplasms/secondary , Head and Neck Neoplasms/therapy , Humans , Immunohistochemistry , Male , Middle Aged , Neck Dissection , Neoplasms, Unknown Primary/mortality , Neoplasms, Unknown Primary/therapy , Oropharyngeal Neoplasms/mortality , Oropharyngeal Neoplasms/therapy , Prognosis , Retrospective Studies , Risk Assessment , Statistics, Nonparametric , Survival Analysis
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