Matthaeus Ch Grasl

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AIMS The aim of this study was to compare laser surgery, conventional endoscopic surgery and radiotherapy in the treatment of early T1a glottic cancer. METHODS We conducted a retrospective analysis of patients with early vocal cord cancer (who underwent either conventional surgery via endoscopy or laryngofissur, or primary radiotherapy) at the Medical(More)
PURPOSE This study was conducted to determine the expression of Bmi-1 and podoplanin in healthy oral mucosa and in untreated tumor tissues samples of patients with squamous cell carcinomas of the head and neck. All patients were treated by primary radio(chemo)therapy. METHODS AND MATERIALS The expression of Bmi-1 and podoplanin was immunohistochemically(More)
BACKGROUND AND OBJECTIVES Measurement of circulating endothelial cells (CECs) and progenitor cells (EPCs) has potential as a surrogate marker for monitoring anticancer treatment. This study evaluated the significance of CECs and EPCs in the blood of patients with head and neck squamous cell carcinoma. METHODS In a prospective trial fresh blood samples(More)
We present the first use of tubeless superimposed combined high- and low-frequency jet ventilation (SHFJV) with a jet laryngoscope in laryngotracheal surgery in infants and children. Twenty-eight patients underwent 53 operative procedures. The average age of the patients was 7.3 years. The most common diagnoses were laryngeal papillomatosis and subglottic(More)
Autologous jejunum, transplanted as a functional replacement immediately after radical dissection of advanced stages of squamous cell carcinomas of the head and neck and subsequently irradiated, was examined by immunohistochemistry (APAAP/PAP-technique). Biopsies from 9 patients were taken at the time of transplantation and up to 24 months thereafter (group(More)
Knowledge of invasion of the walls of the cervical vessels by tumor is of great clinical importance before surgery. We performed sonography on 83 patients with palpable cervical lymph node metastases in the region of the carotid bifurcation to determine the relationship of the metastases to the carotid artery and jugular vein. In all patients, the(More)
Endoscopy permits visualization of the endolaryngeal spread of laryngeal tumors, yet the depth of tumor infiltration often remains unclear. The authors used high-resolution sonography in 37 patients with advanced laryngeal cancer to assess the tumors and the cervical lymph nodes. Sonographic findings were compared to operative and histologic reports.(More)
UNLABELLED Revision courses should repeat already acquired knowledge and skills and mostly provide a basis for passing the following exam. AIM The aim of the study is to investigate the influence of a previously attended revision course on the grades achieved in a final exam (Ear, Nose and Throat Diseases). Additionally we ask the question whether the(More)
BACKGROUND Superimposed high-frequency jet ventilation (SHFJV), which does not require any tracheal tubes or catheters, was developed specifically for use in laryngotracheal surgery. SHFJV uses two jet streams with different frequencies simultaneously and is applied in the supraglottic space using a jet laryngoscope and jet ventilator. METHODS Between(More)
Squamous cell cancer (SCC) of the pharyngoesophageal junction area has a poor prognosis mainly due to late symptom manifestation and diagnosis. Treatment of choice is still pharyngolaryngoesophagectomy, substantially affecting quality of life. Limited surgical procedures have been adopted as well. The aim of this retrospective study was to evaluate whether(More)