Generell ist für das Oropharynxkarzinom in den letzten 2 Dekaden ein Trend zur transoralen
Resektion + Neck Dissection + adjuvante Radio(chemo)therapie zu verzeichnen. Auf Basis
der aktuell verfügbaren besten Evidenz aus Registerstudien können Empfehlungen ausgesprochen
werden, wobei die aktuelle Datenlage mit gebotener Zurückhaltung bewertet werden sollte,
weil bisher manche bedeutenden Parameter keinen Eingang in die Berechnung gefunden
haben.
Abstract
In general, a trend towards transoral resection (as opposed to classic open approaches)
+ neck dissection + adjuvant radio- (chemo-) therapy has been observed for oropharyngeal
carcinoma over the last 20 years. Techniques of transoral surgery (TOS), including
transoral laser microsurgery (TLM) and transoral robotic surgery (TORS) have been
propagated in retrospective comparisons with conventional surgery or primary radiochemotherapy
as gentle, minimally invasive procedures with good late functional results. Meta-analyses
of mostly uncontrolled retrospective analyses suggest that TORS may have better disease-free
survival (DFS) and a reduced risk of free flap reconstruction compared with open surgery.
TORS (TOS) was associated with fewer tumor-positive resection margins (R1), a lower
number of recurrences, fewer intraoperative tracheostomies, a shorter inpatient stay
and a shorter duration of postoperative nasal tube feeding compared to open surgery.
In principle, based on the best evidence currently available from registry studies,
stage I-II oropharyngeal carcinomas can be treated either with primary surgery or
radiochemotherapy with a comparable chance of survival. With comparable evidence for
stage III and IVa, p16neg. oropharyngeal carcinomas, the majority of authors advocate
primary surgery followed by adjuvant radiotherapy or radiochemotherapy as the treatment
of first choice. For p16pos. patients the results of registry studies are inconsistent,
although the largest registry study on 450 HPV-positive stage III patients shows a
significant superiority of primary surgery + adjuvant radiochemotherapy. Since all
registry studies did not adjust for smoking status, among other factors, the current
data situation should be evaluated with the necessary caution.
Schlüsselwörter
Oropharynxkarzinom - p16 - HPV-16 - Kopf-Hals-Chirurgie - transorale Chirurgie - TORS
- TLM
Keywords
Oropharyngeal carcinoma - p16 - HPV-16 - head and neck surgery - transoral surgery
- TORS - TLM