Thomas Weiland

Dr. Thomas Weiland

orcid

Research Focus & Metrics

Academic Career Length

7Years (2020-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
1 June 2020 in EBioMedicine
Verified
Journal Article
Open access
TWThomas Weiland
Thomas Weiland
AEAlexander Eckert
Alexander Eckert
PTPeter Valentin Tomazic
Peter Valentin Tomazic
AWAxel Wolf
Axel Wolf
PPPrisca Pondorfer
Prisca Pondorfer
DTDietmar Thurnher
Dietmar Thurnher
To date, no studies have successfully shown that a highly specific, blood-based tumour marker to detect clinically relevant HPV-induced disease could be used for screening, monitoring therapy response or early detection of recurrence. This study aims to assess the clinical performance of a newly developed HPV16-L1 DRH1 epitope-specific serological assay. In a multi-centre study sera of 1486 patients (301 Head and Neck Squamous Cell Carcinoma (HNSCC) patients, 12 HIV+ anal cancer patients, 80 HIV-positive patients, 29 Gardasil-9-vaccinees, 1064 healthy controls) were tested for human HPV16-L1 DRH1 antibodies. Analytical specificity was determined using WHO reference-sera for HPV16/18 and 29 pre- and post-immune sera of Gardasil-9-vaccinees. Tumour-tissue was immunochemically stained for HPV-L1-capsidprotein-expression. The DRH1-competitive-serological-assay showed a sensitivity of 95% (95% CI, 77.2-99.9%) for HPV16-driven HNSCC, and 90% (95% CI, 55.5-99.7%) for HPV16-induced anal cancer in HIV-positives. Overall diagnostic specificity was 99.46% for men and 99.29% for women ≥ 30 years. After vaccination, antibody level increased from average 364 ng/ml to 37,500 ng/ml. During post-therapy-monitoring, HNSCC patients showing an antibody decrease in the range of 30-100% lived disease free over a period of up to 26 months. The increase of antibodies from 2750 to 12,000 ng/ml mirrored recurrent disease. We can also show that the L1-capsidprotein is expressed in HPV16-DNA positive tumour-tissue. HPV16-L1 DRH1 epitope-specific antibodies are linked to HPV16-induced malignant disease. As post-treatment biomarker, the assay allows independent post-therapy monitoring as well as early diagnosis of tumour recurrence. An AUC of 0.96 indicates high sensitivity and specificity for early detection of HPV16-induced disease. The manufacturer provided assays free of charge.

31 August 2023 in European Archives of Oto-Rhino-Laryngology
Verified
Journal Article
Open access
PDF file
TWThomas Weiland
Thomas Weiland
VGVerena Gellner
Verena Gellner
PPPrisca Pondorfer
Prisca Pondorfer
DHDavid Hortobagyi
David Hortobagyi
EMEmanuel Maitz
Emanuel Maitz
PTPeter Valentin Tomazic
Peter Valentin Tomazic
Purpose: The aim of this prospective longitudinal study was to assess both subjective quality of life using questionnaires and objective examination of nasal function with regard to olfaction, nasal air flow and mucociliary clearance in patients after minimally invasive, turbinate-preserving endoscopic transnasal trans-sphenoidal pituitary surgery. Methods: Patients undergoing endoscopic transnasal pituitary surgery were recruited prospectively and examined during three study visits, preoperatively and 3 and 6 months postoperatively. We examined nasal function using sniffin' sticks test, rhinomanometry, saccharin transit time test, and endoscopic and radiological scores. In addition, the influence on subjective quality of life and mental health was recorded using the Sinonasal-Outcome-Test-20 (SNOT-20) and the Hospital-Anxiety-and-Depression-Scale (HADS). Results: 20 patients undergoing endoscopic pituitary tumor resections were included. No significant changes in olfaction or mucociliary clearance were noted. Nasal air flow showed a tendency to increase in the postoperative course lacking significance. Both the endoscopy and the radiological scores showed a significant deterioration, especially after 3 months, with a trend towards improvement over time. However, neither the SNOT-20 nor the HADS showed significant changes compared to baseline. Conclusions: Our concept of minimally invasive endoscopic tumor resections on the pituitary gland with preservation of nasal turbinates shows low morbidity for the patient. Despite objectifiable surgery-associated changes in the nose, nasal physiology in terms of smell, airflow and mucociliary clearance can be preserved and the subjective quality of life of our patients remains stable.

5 March 2024 in European Archives of Oto-Rhino-Laryngology
Verified
Journal Article
Open access
PDF file
TWThomas Weiland
Thomas Weiland
JZJakob Zgubic
Jakob Zgubic
LBLuka Brcic
Luka Brcic
DTDietmar Thurnher
Dietmar Thurnher
Purpose: Despite prognostic superiority of HPV-positive oropharyngeal squamous cell carcinoma (OPSCC), up to 25% of patients will suffer from recurrence within the first 5 years. Therefore, it is of great scientific interest to find relevant biomarkers to identify patients at risk. In this prospective observational study, we aimed to investigate the dynamics of HPV-L1 capsid protein specific antibody (AB) subclasses IgA, IgM, and IgG in HPV-positive OPSCC patients under therapy. Methods: Serum samples from HPV-positive OPSCC patients, identified by positive p16-immunohistochemistry, were collected before and during tumor-specific therapy and 3–6 months during follow-up. They were analyzed for the presence of HPV-L1 AB subclasses IgA, IgM, and IgG using an HPV-L1-specific immuno-assay. Additionally, a PCR-based HPV-DNA detection from the tumor tissue was performed. Results: Altogether, 33 patients with a mean follow-up of 55 months were included. Analysis of a total of 226 serum samples revealed that the most common L1-AB-subclass pattern was characterized by IgG > > IgA > IgM without significant fluctuation during the course of disease. Patients with excessive IgG levels tended to higher tumor stages and three out of three patients with disease recurrence showed increasing IgG AB titers beforehand. Seven patients showed an IgA dominance at diagnosis, which was associated with a better disease-free survival. Conclusion: Despite limited cases, our prospective pilot study revealed promising trends in HPV L1 AB subclasses and may contribute useful information for future risk stratification and post-treatment monitoring in HPV-positive OPSCC patients.

3 March 2023 in Facial Plastic Surgery & Aesthetic Medicine
Verified
Journal Article
Closed access
MGMartin Grohmann
Martin Grohmann
TWThomas Weiland
Thomas Weiland
ATAlexandru-Christian Tuca
Alexandru-Christian Tuca
JWJulia Maria Wimbauer
Julia Maria Wimbauer
Background: Surgical reconstruction of the earlobe after gauge ear piercing can be challenging especially in cases of large defects. Objective: By performing a systematic review of the current literature, we aimed to identify available surgical approaches for earlobe reconstruction after gauge piercing and provide a surgical classification system with regard to defect size. Methods: A literature review was performed including MEDLINE and PubMed databases to identify articles describing reconstruction after stretched earlobe piercing. Articles referring to traumatic, congenital, and acquired cleft deformities were excluded. Surgical techniques were summarized and categorized with regard to different defect sizes. Drawings of each method were performed. Results: A total of 17 different surgical approaches were found and described. Based on the authors' descriptions of each technique, a classification system for small to medium, large, and extralarge defects was established and special benefits of each method were highlighted. Conclusion: A simple classification of available techniques for stretched earlobe reconstruction with regard to defect size might help physicians to choose the appropriate surgical management especially in cases of large defects.

15 January 2020 in Wiener klinische Wochenschrift
Verified
Journal Article
Open access
PDF file
SVSarah M. Vasicek
Sarah M. Vasicek
PPPrisca Pondorfer
Prisca Pondorfer
CHClemens Holzmeister
Clemens Holzmeister
MGMatthias Graupp
Matthias Graupp
TWThomas Weiland
Thomas Weiland
DTDietmar Thurnher
Dietmar Thurnher
Summary: Background: The outcome of patients with cancer of the head and neck is significantly improved by increased interdisciplinary cooperation. The main focus of this study was a comparison of epidemiologic factors (age, sex, origin, staging) of patients with head and neck cancer in Styria, with those for patients throughout Austria. Methods: A retrospective data analysis of collected archived tumor board protocols of the Comprehensive Cancer Center (CCC) Graz included the patient’s age, sex, area of residence, TNM stage, reasons for inoperability, comorbidities and performance status by ECOG (Eastern Cooperative Oncology Group), was performed. This study focuses on 340 patients who presented with a head and neck malignancy for the first time. Results: In the period from January 2014 to December 2015 a total of 252 men (74.1%) and 88 women (25.9%) with malignant head and neck tumors, were presented in the tumor board for the first time. The mean age at diagnosis was 63.4 years. In 45.5% the patients already demonstrated advanced tumor stages (T4 = 27.9%, T3 = 17.6%). Most newly diagnosed neoplasms were cancers of the oropharynx (24.1%), larynx (19.4%) and oral cavity (18.8%) and 36.5% were considered to be inoperable. Curative and palliative treatments were initiated in 83.2% and 16.9%, respectively. Conclusion: The region of south Styria showed a higher incidence of T3 and T4 tumors of the oropharynx than the average Austrian population. Measures to increase awareness of this problem should be initiated to support general otorhinolaryngologists and general practitioners in detecting oropharyngeal cancers at an earlier stage.

1 December 2020 in EBioMedicine
Verified
Journal Article
Open access
TWThomas Weiland
Thomas Weiland
LBLuka Brcic
Luka Brcic
MRMarkus Reinholz
Markus Reinholz
LFLars E. French
Lars E. French
DTDietmar Thurnher
Dietmar Thurnher