PMID- 21509623
OWN - NLM
STAT- MEDLINE
DCOM- 20120319
LR  - 20211020
IS  - 1433-0458 (Electronic)
IS  - 0017-6192 (Linking)
VI  - 59
IP  - 7
DP  - 2011 Jul
TI  - [Microsurgical middle ear operations : Variability of the audiometric results 
      from frequency variations].
PG  - 676-82
LID - 10.1007/s00106-011-2264-5 [doi]
AB  - INTRODUCTION: The audiometric results after reconstructive tympanic surgery on 
      504 patients carried out between October 2005 and October 2007, including 190 
      cases of tympanoplasty type I and 314 cases of tympanoplasty type III according 
      to Wullstein, were retrospectively analyzed at the Department of Otolaryngology, 
      Ruprecht-Karls-University in Heidelberg. PATIENTS AND METHODS: To investigate the 
      influence of the frequencies used to compare the outcome, the pure tone average 
      air-bone gaps (PTA-ABG) of the preoperative and postoperative audiograms of 
      tympanoplasties type I and III were analyzed. The frequencies covered the ranges 
      of 0.5 kHz, 1 kHz, 2 kHz, 4 kHz and 6 kHz. In each case the 3-frequency, 
      4-frequency and 5-frequency analyses were calculated for the different surgical 
      groups. RESULTS: The 3-frequency analysis (0.5 kHz, 1 kHz and 2 kHz) of the type 
      1tympanoplasties were 18.8 +/- 11.8 dB preoperative and 12.3 +/- 11.8 dB 
      postoperative. In 58.9% of cases the PTA-ABG </= 10 dB and in 86.7% it was </= 20 dB. 
      The 3-frequency analysis showed that the tympanoplasties type III had a PTA-ABG 
      of 30.6 +/- 15.3 dB preoperatively and 21.8 +/- 15.1 dB postoperatively. In 30.4% of 
      cases the PTA-ABG was </= 10 dB and </= 20 dB for 56%. DISCUSSION: The detailed 
      itemization of frequencies in this study and the consequent opportunity to modify 
      the frequency range, allowed the impact of this selection on the PTA-ABG to be 
      illustrated and various comparisons with other studies could be carried out. In 
      this article, the exclusion criteria were dealt with liberally and risk patients 
      were also included and data from patients who displayed prognostic risks 
      regarding the successful surgery in terms of the audiometric reports were 
      integrated. These prognostic risks were due to the poor aeration of the tympanum 
      and recent (sometimes diverse), pre-surgery as well as chronic inflammatory 
      processes. This study has proved that all surgery collectives showed significant 
      improvements of the PTA-ABG. Therefore, all surgery collectives (measured against 
      the audiometric evaluation) benefited from the surgery.
FAU - von Gierke, L
AU  - von Gierke L
AD  - Sektion Otologie und Neurootologie, Klinik fur Hals-Nasen-Ohren-Heilkunde mit 
      Poliklinik, Universitatsklinikum Heidelberg, Im Neuenheimer Feld 400, 69120, 
      Heidelberg, Deutschland.
FAU - Baumann, I
AU  - Baumann I
FAU - Plinkert, P K
AU  - Plinkert PK
FAU - Praetorius, M
AU  - Praetorius M
LA  - ger
PT  - English Abstract
PT  - Journal Article
TT  - Mikrochirurgische Mittelohroperationen. Variabilitat der audiometrischen 
      Ergebnisse bei Frequenzvariationen.
PL  - Germany
TA  - HNO
JT  - HNO
JID - 2985099R
SB  - IM
CIN - HNO. 2011 Jul;59(7):674-5. PMID: 21607798
MH  - Adolescent
MH  - Adult
MH  - Aged
MH  - Aged, 80 and over
MH  - Audiometry/*methods
MH  - Child, Preschool
MH  - Deafness/*diagnosis/*surgery
MH  - Female
MH  - Humans
MH  - Male
MH  - Microsurgery/*methods
MH  - Middle Aged
MH  - Reproducibility of Results
MH  - Sensitivity and Specificity
MH  - Treatment Outcome
MH  - Tympanoplasty
MH  - Young Adult
EDAT- 2011/04/22 06:00
MHDA- 2012/03/20 06:00
CRDT- 2011/04/22 06:00
PHST- 2011/04/22 06:00 [entrez]
PHST- 2011/04/22 06:00 [pubmed]
PHST- 2012/03/20 06:00 [medline]
AID - 10.1007/s00106-011-2264-5 [doi]
PST - ppublish
SO  - HNO. 2011 Jul;59(7):676-82. doi: 10.1007/s00106-011-2264-5.