Table 6. Summary of results of the prospective investigations.

Parameter	Proband 1	Proband 2	Proband 3	Proband 4	Proband 5
Swallowing investigation
Morphology	post RT / edema	inconspicuous	post RT / edema	inconspicuous	post RT /edema
Sensibility	reduced	reduced	reduced	reduced	normal
FOIS Level	4	6	5	5	3
Aspiration	yes	yes	no	no	no
Penetration	no	yes	no	yes	yes
Voice investigation
DSI	moderate dysphonia	moderate dysphonia	light dysphonia	slight dysphonia	profound dysphonia
Questionnaires
ADI-D	rather conspicuous	rather inconspicuous	rather conspicuous	rather conspicuous	sure conspicuous
VHI	moderate dysphonia	no dysphonia	no dysphonia	no dysphonia	no dysphonia
EORTC QLQ-H&N35 Mean (%)	72	38	34	38	41
Further Parameter
Logopedic training before investigation	yes	no	yes	no	No
Recommendation for logopedic training after investigation	yes	yes	no	yes	yes
Pulmonary symptoms or disease after RT	chron. bronchitis	no	no	no	pneumonia
Age at investigation	57	63	57	57	65
TNM at Diagnosis	T3	T4+rcT2	T3	T3	T4
Interval RT—investigation [months]	48	6	28	12	16
Total dose RT [Gy]	70	70,4 (+50,4 –reirradiation)	70	66	70
Local recurrence	no	yes	no	no	no
Neck dissection	no	no	no	yes	no
Impairment of movement	yes	no	yes	yes	yes
Feeding tube dependence at investigation	no	no	no	no	yes