John Martin Hempel

University Hospital München, München, Bavaria, Germany

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Publications (40)31.09 Total impact

  • [Show abstract] [Hide abstract]
    ABSTRACT: Conclusion: The length of the cochlea can be determined with good precision using a 3D-curved multiplanar reconstruction analysis technique and linear reconstruction of the cochlea. The method is not time-consuming and can be applied during clinical routine. Objective: A preoperative prediction of the best cochlear implant electrode length can help reduce the risk of intraoperative cochlear trauma in patients who need to retain residual acoustic hearing for electric-acoustic stimulation or in patients with anatomical anomalies or malformations. The goal of this study was to evaluate the accuracy and reliability of length measurement of the cochlea after linear reconstruction using 3D-curved multiplanar reconstrucion analysis of high resolution computed tomography (CT) scans. Methods: Human cadaveric temporal bone specimens underwent cochlear implantation using custom-made electrodes with two radiopaque markers of a defined length before CTscans were made. Length measurement was performed by four readers and the results were compared to the true value. Inter-reader reliability was calculated. The time needed for analysis was recorded. Results: The mean time needed for analysis of one specimen’s radiologic data was 6.1 (± 3.4) min. The mean deviation of the length measurement from the true value was 0.8 (± 0.7) mm. Inter-reader reliability was excellent (0.76, p = 0.006).
    Acta Oto-laryngologica. 09/2014; 134(10).
  • J M Hempel, D Knöbl, A Berghaus, T Braun
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    ABSTRACT: Microtia is associated with increased psychosocial morbidity. The literature contains three purely retrospective studies using validated tools. These studies show that auricular reconstruction leads to a significant improvement in health-related quality of life in affected children and adults. In a prospective approach, the authors assessed 21 consecutive microtia patients (return rate 81 %; 7 children and 10 adults) before and after auricular reconstruction with porous polyethylene using the following validated questionnaires: Glasgow Health Status Inventory (GHSI), Short Form 36 Health Survey Questionnaire (SF-36), Childhood Experiences Questionnaire (CEQ) and Kidscreen-52. An improved health-related quality of life was detected with all applied instruments. A subjective benefit of auricular reconstruction with porous polyethylene can be shown using prospective, as well retrospective tools.
    HNO 03/2014; · 0.42 Impact Factor
  • Thomas Braun, John Martin Hempel, Alexander Berghaus
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    ABSTRACT: Developmental disorders of the ear can impair hearing and cause cosmetic deformities. In recent years, new surgical treatments have become established, above all in audiological rehabilitation. We selectively searched the PubMed database up to May 2013 for publications in English and Germanabout the therapeutic options. No randomized trials have been performed, for both ethical and practical reasons (inadmissibility of placebo surgery, specialization of surgeons for individual techniques). To correct prominent ears, cartilage-sparing suture techniques are preferred, as they lead less often than scoring and incisional techniques to the formation of persistent, incompletely correctable ridges and scaffolding defects. The successful esthetic rehabilitation of severe deformities of the external ear is achievable through pinna reconstruction with costal cartilage (main risks: tissue defect at donor site, scaffolding resorption) or porous polyethylene (main risk: implant extrusion). The functional rehabilitation of conductive or mixed hearing impairment due to ear-canal atresia and major middle-ear deformities is preferably achieved with active middle-ear implants or bone-conduction hearing aids. Functional rehabilitation should be provided even when the hearing impairment is unilateral, in order to improve directional hearing and hearing with ambient noise. In cases of purely cochlear, unilateral, severe hearing impairment or deafness, a boneconduction hearing aid can be tried, and the individual indication for a cochlear implant can be considered. The treatment options described here enable the affected children to benefit from complete functional and esthetic rehabilitation before they start school.
    Deutsches Ärzteblatt International 02/2014; 111(6):92-8. · 3.54 Impact Factor
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    ABSTRACT: To analyze the value of a routine x-ray position check after cochlear implantation and to assess if an increased resistance during electrode insertion is a sufficient predictor of electrode misplacement. Retrospective data collection. University hospital. Plain x-rays (Stenvers' projection) and the respective surgery reports of 218 patients having received cochlear implantation (243 ears) were analyzed for possible electrode misplacements and intraoperative conspicuities during electrode insertion. Electrode misplacement (tip-over, loop, kinking, scalar transition, and incomplete insertion) was observed in 8% of the entire study cohort, but only in 5% if cases with inner ear dysplasia or labyrinthine ossification (n = 28) were excluded from analysis. Intraoperatively, an increased resistance during electrode insertion was found in 16% but only in 8% when cases with inner ear dysplasia or labyrinthine ossification were excluded. The intraoperative finding of an increased resistance during electrode insertion had a sensitivity of 55% and a specificity of 88% for predicting radiographically confirmed electrode misplacements (positive predictive value, 29%; negative predicting value, 96%). Nearly half of the cases of electrode misplacement would have been overlooked if radiographic position checks would have been done only in patients with intraoperative conspicuities during electrode insertion. This finding advocates routine radiographic position checks, although electrode misplacements are relatively rare in patients with regular inner ear anatomy.
    Otology & neurotology: official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology 10/2013; · 1.44 Impact Factor
  • J M Hempel, T Braun, A Berghaus
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    ABSTRACT: Microtia leads to a severe functional and aesthetic handicap. Traditionally, the auricle is often reconstructed with cartilage transplants, which is, however, associated with some partially substantial disadvantages. The authors have instead used implants of porous polyethylene for successful ear reconstruction for years, thus, avoiding some of these disadvantages. A significant benefit for the patient is achieved by simultaneous hearing rehabilitation by the implantation of active middle ear prostheses. The authors present their surgical concept which allows functional and aesthetic rehabilitation of microtia in children and adolescents in a single operation. In the respective patient collective, audiometric measurements in quiet and noisy environments were conducted pre- and postoperatively, and health-related quality of life was determined using a validated questionnaire. All patients experienced a substantial hearing gain both in quiet and noisy environments. The evaluation of health-related quality of life showed a significant benefit from the intervention. Functional and aesthetic rehabilitation of microtia with active middle ear implants and ear reconstruction using porous polyethylene leads to good and reliable long-term results and can increase the health-related quality of life of affected children and adolescents. The main advantage of this concept is the possibility of a single procedure.
    HNO 08/2013; 61(8):655-61. · 0.42 Impact Factor
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    ABSTRACT: Objective: To evaluate the prevalence of labyrinthine ossification, and especially cochlear ossification, in a cohort of patients with unilateral sudden deafness or severe sensorineural hearing loss. Design: Retrospective data collection. Study sample: Sixty-four consecutive patients with unilateral sudden deafness or severe sensorineural hearing loss and either high-resolution CT (HRCT) of the temporal bone (isotropic spatial resolution ≤ 0.8 mm; n = 18) or high resolution CISS MRI (isotropic spatial resolution ≤ 1 mm; n = 55) were included. Nine patients underwent both imaging modalities. A standardized reading regarding labyrinthine ossifications was performed by an experienced head and neck radiologist blinded to clinical symptoms. Results: Radiologic signs of cochlear ossification were present in 14 patients (12 CT and 2 MRI). Eight patients showed unilateral and six patients bilateral signs of cochlear ossification. In all except one of the unilateral cases, the deafened ear was affected. Conclusions: Signs of cochlear ossification were found in an unexpectedly high rate (14/64, 22%) of patients with acute deafness. The data suggest HRCT of the temporal bone to be more sensitive to detect labyrinthine ossification than MRI. HRCT of the temporal bone should therefore be considered in patients with impaired recovery of acute deafness to exclude cochlear ossification; if present, and, in cases of early signs, the patient should be evaluated further to facilitate early cochlear implantation before progression impedes electrode insertion, reflecting latest developments considering cochlea implants for single-sided deafness to be effective.
    International journal of audiology 05/2013; · 1.34 Impact Factor
  • J M Hempel
    HNO 12/2012; · 0.42 Impact Factor
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    ABSTRACT: OBJECTIVE: To evaluate patient benefit and health-related quality of life after lid loading with platinum chains in adult patients with facial palsy. STUDY DESIGN: Retrospective data collection. SETTING: Germany's largest university clinic for otorhinolaryngology, head and neck surgery. SUBJECTS AND METHODS: Thirty-five patients received validated questionnaires determining the effects of the operation on the patients' health-related quality of life (Glasgow Benefit Inventory). Scores can range from -100 (maximal adverse effect), through 0 (no effect), to 100 (maximal positive effect). Furthermore, satisfaction, complaints, and complications regarding the platinum chain implant were inquired. RESULTS: Twenty-two patients (63 %) returned a valid questionnaire. The mean follow-up time was 31.5 months. A complete coverage of the cornea was achieved in 95% of the patients after the first operation and in the remaining patients after a revision with implantation of a heavier weight. Complete symmetry to the nonaffected eye was perceived by 64%. Recurrent conjunctivitis was complained preoperatively by 18% and postoperatively only by a single patient. In 2 patients, a mild pseudoptosis was found postoperatively, and a single patient complained about blurred vision. The median total Glasgow Benefit Inventory score was 27.8 (p < 0.001). The health-related quality of life was raised in 91% of the patients; 87% were fully satisfied with the functional result, and 91% with the aesthetical result. 100% would again decide in favor of platinum chain lid loading. CONCLUSION: Platinum chain lid loading in facial palsy patients can significantly increase patients' health-related quality of life and leads to a high rate of patient satisfaction.
    Otology & neurotology: official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology 10/2012; · 1.44 Impact Factor
  • T Braun, M Wimmer, J M Hempel
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    ABSTRACT: In Germany assessment of hearing loss for numbers is used to calculate the percentage hearing loss from speech audiometry and for plausibility checking with pure tone thresholds. It is common practice to take a graphical reading from the speech audiogram to determine the hearing loss for numbers. This study searches for a mathematical formula for the exact calculation of the hearing loss for numbers from the intelligibility values measured. With analytical methods on the basis of the standard curve following DIN 45626-1, two simple formulas for the calculation of the hearing loss for numbers were developed. The hearing loss for numbers a(1) is calculated as a(1)=p(1)+(50-v(1)) (p(2)-p(1))/(v(2)-v(1))-18,4 for two available measured values and as a(1)=p(1)-0,13 v(1)-11,9 if only one measured value is used, with v(i )being number intelligibility in percent at the level p(i) in decibels (dB) of measurement number i. Number intelligibility of all inserted pairs of values must be between 30% and 70% because the standard curve of DIN 45626-1 runs approximately linearly only in this range. The calculated value for the hearing loss for numbers is subsequently mathematically rounded up to 5 dB as well as for the conventional graphically determined value. With the presented formulas the hearing loss for numbers can be calculated exactly from the measured values of the Freiburg number test especially in matters of expertise if the conventional graphical determination of this value does not seem to be unambiguous.
    HNO 09/2012; 60(9):814-6. · 0.42 Impact Factor
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    ABSTRACT: To obtain clinical and audiometric findings in traumatic tympanic membrane perforations from a typical patient collective in a Western industrial nation because the appropriate data have an important relevance in medicolegal questions. Retrospective data collection. Germany's largest university clinic for otorhinolaryngology, head and neck surgery. From the medical records of 198 patients with traumatic tympanic membrane perforations, the following data were collected: demographic data, date and mechanism of the trauma, otoscopic findings and collateral injuries, kind of therapy and its results, pure tone audiometry, and statement of tinnitus or vertigo in the course. Most patients were young (mean age, 29.2 yr) and male (62%). Men and women are equally represented in perforations resulting from a physical blow to the ear (44.7% vs 46.7%); a collision was more often the cause in men (23.6% vs 14.7%), whereas an accidental perforation by insertion of a cotton bud was approximately 2 times more common on women (13.8% vs 25.3%). The left ear was more often affected than the right ear (58.5% vs 41.5%). Collateral damage was found in only 1% of the cases. In blows, collisions, barotraumas, and the insertion of sharp objects, the inferior parts of the tympanic membrane were most often affected; the most severe (subtotal) perforations were caused by explosions, weld beads, and insertion of cotton buds. For therapy, myringoplasty had an overall success rate of 88.9%; splinting with silicon foils, 51.6%; and "no therapy," 53.3%. Bone conduction thresholds for the affected ear were higher in low, middle, and high frequencies compared with the contralateral ear by trend, but a statistical difference was only found in the high frequencies. In follow-up examinations, the hearing thresholds in the high frequencies were no longer significantly different. A "c dip" or "fis dip" was found in 18.0% and 9.2%. Tinnitus and vertigo were reported in 30.8 and 8.1%, respectively, but only in 2.0% and 0% during follow-up. High-frequency hearing loss, tinnitus, and vertigo in traumatic tympanic membrane perforations have a good prognosis.
    Otology & neurotology: official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology 08/2012; 33(8):1357-62. · 1.44 Impact Factor
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    ABSTRACT: For the determination of speech intelligibility in the expertise of hearing loss, the Freiburg speech test (number test and monosyllable test) is recommended in the Federal Republic of Germany. In the former German Democratic Republic, Sauer's binaural number test with 70 dB background noise ("beidohriger Zahlentest", BZT) was a standard element in expert opinions and was used in the calculation of bodily injury ("Körperschaden"). In the current practice, a hearing test in noise is still lacking. The present study analyzes whether and to what degree the impairment ("Grad der Schädigungsfolgen", GdS) changes when also considering Sauer's test. In a collective of 78 patients with hearing loss (66 patients with high-frequency hearing loss and 12 patients with pancochlear hearing loss) and 22 normal hearing controls, the following audiometric measurements were conducted: pure tone audiometry, speech audiometry (Freiburg speech test), free field audiometry with and without noise, and Sauer's test. Subsequently, the hearing loss for both sides was calculated taking into consideration the values obtained with and without Sauer's test, and the respective GdS was determined. Patients with high-frequency hearing loss and pancochlear hearing loss had a trend for higher GdS (approximately 2 and 5%, respectively), compared to the established algorithm without the use of hearing tests in noise. However, neither the Mann-Whitney U-test nor the Bland-Altman analysis yielded relevant differences between the two methods to calculate the GdS. The routine implementation of Sauer's test in the expertise of hearing loss cannot be recommended, since no relevant change in the GdS can be expected. This is especially true for high-frequency hearing loss. In pancochlear hearing loss, use of Sauer's test can be considered if problems concerning hearing in situations with background noise are present-at least until more advanced hearing tests optimized for use in noise have been integrated into the tables for GdS calculation.
    HNO 07/2012; 60(10):886-91. · 0.42 Impact Factor
  • Alexander Berghaus, Thomas Braun, John Martin Hempel
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    ABSTRACT: To describe how severe ear deformities after otoplasty can be corrected. The correction of creases is possible through readaptation of the cartilage edges followed by revision otoplasty using suture techniques in the reconstructed cartilage. In the case of defect formation or extreme thinning of the cartilage, an appealing auricular shape is achieved by the use of porous polyethylene implants. We have treated 12 severe ear deformities in the past 2 years with the procedures described herein. In 11 cases, there were no complications, nor was it necessary to make further corrections for cosmetic reasons. Reconstructing the cartilaginous skeleton and redoing otoplasty is a recommendable procedure with a longer lasting effect than just covering creases with fascia or preserved materials. In the case of a missing ear cartilage skeleton, the use of porous polyethylene implants instead of autogenous cartilage should be considered for reconstruction.
    Archives of facial plastic surgery: official publication for the American Academy of Facial Plastic and Reconstructive Surgery, Inc. and the International Federation of Facial Plastic Surgery Societies 05/2012; 14(3):205-10. · 1.31 Impact Factor
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    ABSTRACT: For successful cochlear implantation in difficult ears, image guided navigation systems can help identify surgical landmarks or confirm the surgeon's anatomical knowledge. In this pilot case study, exact navigation based on intraoperative CT scanning was investigated and helped confirm important and necessary landmarks, such as the facial nerve, cochlea and intracochlear structures, and at least adequate placement of a straight electrode array. Intraoperative imaging was performed on a 40-slice sliding-gantry CT scanner (Siemens SOMATOM Sensation 40 Open) with an expanded gantry bore (82 cm). Raw image data were reconstructed with a slice thickness and increment of 0.6 mm and were imported to a frameless infrared-based navigation station (BrainLAB VectorVision Sky). In a preoperative accuracy and feasibility study, a phantom skull was scanned and registered five times by the navigation system. Based on the encouraging results, the system was then applied to a male patient with post-traumatic sensorineural hearing loss. The intraoperative target positioning error was measured by a "blinded" colleague who defined the distance of the pointer from different sections of the facial nerve without seeing the intraoperative field. The average deviation in the phantom skull was 0.91 mm (SD 0.27 mm) on the mastoid, 1.01 mm (SD 0.21 mm) on the round window, and 0.9 mm (SD 0.18 mm) on the inner ear canal. Surgery could be performed without major complications. The distance of the pointer from the facial nerve could be defined exactly using navigation in ten measurements. The cochleostomy and electrode insertion were performed with the aid of navigation. After insertion, direct intraoperative control of the electrode position was achieved by means of a low-dose CT scan. Two months postoperatively, the patient had a satisfactory open-set speech understanding of 85%. With the use of intraoperative acquisition of CT images (or digital volume tomography devices) and automatic volumetric registration for navigation, surgical precision can be improved, thereby allowing successful cochlear implant surgery in patients with complex malformations or who have undergone multiple previous ear surgeries and consequently lack anatomical landmarks. Our study clearly shows that this high-technology combination is superior to other registration methods in terms of accuracy and precision. Further investigations should aim at developing automatic segmentation and applications for minimally invasive surgery of the lateral skull base.
    Computer Aided Surgery 03/2012; 17(3):153-60. · 0.78 Impact Factor
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    ABSTRACT: To analyze the impact of surgery for ear canal exostoses and osteomata on patients' health-related quality of life because the literature suggests that surgery cannot achieve excellent symptom control in all cases and has a considerable complication rate. Retrospective data collection. Germany's largest university clinic for otorhinolaryngology and head and neck surgery. Thirty-nine patients having received surgery for ear canal exostoses and osteomata. Glasgow Benefit Inventory (GBI), a retrospective questionnaire well validated for measuring the effect of otorhinolaryngologic interventions on the health-related quality of life. None. GBI total scores and subscores. Thirty of the 39 patients returned a valid questionnaire (return rate, 76.9%). The mean total GBI score was 14.6 (p < 0.001), suggesting a benefit from the operation. In contrast to the general subscale score (mean, 21.0; p < 0.001), the mean physical health score and the mean social support score were not significantly increased. Of all patients, 83.3% had a total GBI score higher than 0, indicating a benefit from the operation. In 90% of the cases, patients were satisfied with the result of the operation, and 86.7% would again decide in favor of the operation. Most patients preoperatively experienced hearing loss, wax retention and recurrent otitis externa. Postoperatively, 70% of the patients were free of any complaints. The patients not satisfied were the only patients with negative GBI scores in the whole patient collective, and all had had complications from surgery. Surgery for ear canal exostoses and osteomata can significantly improve patients' health-related quality of life and leads to a high rate of patient satisfaction. Postoperative complications are the most important factor for a negative impact on the patient's health-related quality of life. Therefore, in the authors' opinion, only patients with symptoms should have surgery.
    Otology & neurotology: official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology 01/2012; 33(1):83-6. · 1.44 Impact Factor
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    ABSTRACT: The present study analyzes the best combination of frequencies for the calculation of mean hearing loss in pure tone threshold audiometry for correlation with hearing loss for numbers in speech audiometry, since the literature describes different calculation variations for plausibility checking in expertise. Three calculation variations, A (250, 500 and 1000 Hz), B (500 and 1000 Hz) and C (500, 1000 and 2000 Hz), were compared. Audiograms in 80 patients with normal hearing, 106 patients with hearing loss and 135 expertise patients were analyzed in a retrospective manner. Differences between mean pure tone audiometry thresholds and hearing loss for numbers were calculated and statistically compared separately for the right and the left ear in the three patient collectives. We found the calculation variation A to be the best combination of frequencies, since it yielded the smallest standard deviations while being statistically different to calculation variations B and C. The 1- and 2.58-fold standard deviation (representing 68.3% and 99.0% of all values) was ±4.6 and ±11.8 dB for calculation variation A in patients with hearing loss, respectively. For plausibility checking in expertise, the mean threshold from the frequencies 250, 500 and 1000 Hz should be compared to the hearing loss for numbers. The common recommendation reported by the literature to doubt plausibility when the difference of these values exceeds ±5 dB is too strict as shown by this study.
    HNO 07/2011; 59(9):908-14. · 0.42 Impact Factor
  • J M Hempel
    HNO 03/2011; 59(3):266-7. · 0.42 Impact Factor
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    ABSTRACT: Zusammenfassung Hintergrund Die vorliegende Arbeit untersucht, welche Frequenzkombination für die Berechnung der mittleren Hörverluste im Tonschwellenaudiogramm am besten mit dem Hörverlust für Zahlen im Sprachaudiogramm korreliert, da in der Literatur verschiedene Rechenvarianten für diese gutachterliche Plausibilitätsprüfung beschrieben werden. Es wurden die 3 Rechenvarianten A (250, 500 und 1000 Hz), B (500 und 1000 Hz) und C (500, 1000 und 2000 Hz) verglichen. Methoden Die Audiogramme von 80 Normalhörigen, 106 Schwerhörigen und 135 zu Begutachtenden wurden retrospektiv analysiert. Die Differenzen der Mittelwerte aus dem Tonschwellenaudiogramm und dem Hörverlust für Zahlen wurden für das rechte und linke Ohr getrennt in den 3 Patientenkollektiven berechnet und statistisch verglichen. Ergebnisse Wir fanden in Rechenvariante A die beste Frequenzkombination, da sie bei statistisch signifikantem Unterschied zu den Rechenvarianten B und C die kleinsten Standardabweichungen lieferte. Die 1- bzw. 2,58-fache Standardabweichung (entsprechend 68,3 bzw. 99,0% aller Werte) betrug bei Rechenvariante A im Kollektiv der Schwerhörigen maximal ±4,6 bzw. ±11,8 dB. Schlussfolgerung Bei der gutachterlichen Plausibilitätsprüfung sollte der Mittelwert der Frequenzen 250, 500 und 1000 Hz mit dem Hörverlust für Zahlen verglichen werden. Die gängige Empfehlung in der Literatur, bei Differenzen beider Werte von mehr als ±5 dB die Plausibilität anzuzweifeln, sollte nach den vorliegenden Ergebnissen nicht zu starr angewandt werden.
    HNO 01/2011; · 0.42 Impact Factor
  • J.M. Hempel
    HNO 01/2011; 59(3):266-267. · 0.42 Impact Factor
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    ABSTRACT: The objective of the study was to evaluate patient benefit and health-related quality of life after use of botulinum neurotoxin (BoNT) A for various otorhinolaryngological, functional (non-cosmetic) indications. The design consisted of a survey study of a patient cohort (n = 40) treated with BoNT A for functional indications. Patients were asked to answer the Glasgow Benefit Inventory (GBI), a retrospective questionnaire well validated for measuring the effect of otorhinolaryngological interventions on the health-related quality of life. GBI scores can range from -100 (maximal adverse effect), through 0 (no effect), to 100 (maximal positive effect). A total of 29 patients (72.5%) returned a valid questionnaire. Mean total GBI scores for the particular indications were 1.2 (sialorrhea, n = 7), 22.6 (gustatory sweating, n = 8), 20.6 (palatal tremor, n = 5), 15.0 (postlaryngectomy voice disorders due to pharyngoesophageal spasm, n = 5), 38.9 (adductor spasmodic dysphonia, n = 2) and 27.8 (oromandibular dystonia, n = 2), showing a mean overall positive effect of BoNT A treatment on the health-related quality of life, respectively. A varying percentage of patients reported an increase in their health-related quality of life, indicated by positive total GBI scores: sialorrhea 28.6%, gustatory sweating 87.5%, palatal tremor 60%, postlaryngectomy voice disorders 60%, spasmodic dysphonia 100% and oromandibular dystonia 100%. Use of BoNT A can be considered an effective therapeutic option for all the indications investigated. However, the possibility of raising patients' health-related quality of life with this kind of therapy varies significantly for different indications. Further studies are needed to analyze the patients who will benefit most from a treatment with BoNT A.
    Archives of Oto-Rhino-Laryngology 12/2010; 267(12):1963-7. · 1.29 Impact Factor
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    ABSTRACT: The available medical literature lacks data about the effect of otoplasty on health-related quality of life. In the present study, 84 patients, having received otoplasty using a suture technique, were asked to answer validated questionnaires (the Glasgow Benefit Inventory and the Glasgow Children's Benefit Inventory, respectively); Glasgow Benefit Inventory and Glasgow Children's Benefit Inventory scores can range from -100 (maximal adverse effect) through 0 (no effect) to 100 (maximal positive effect). Sixty-two patients (73.8 percent) returned a valid questionnaire. For the adults' cohort (n=21), the mean total Glasgow Benefit Inventory score was 30.6; 100.0 percent were satisfied with the aesthetic result, and 90.5 percent would again decide in favor of the operation. For the children's cohort (n=41), the mean total Glasgow Children's Benefit Inventory score was 24.1; 95.1 percent of the parents and 95.1 percent of the children were satisfied with the aesthetic result; and 97.6 percent of the parents and 92.7 percent of the children would again decide in favor of the operation. The health-related quality of life was elevated in 95.2 percent of the adults and 95.1 percent of the children. The additional compilation of clinical outcome parameters and complications confirmed the effectiveness and safety of an otoplasty using suture techniques. Otoplasty using suture techniques can significantly increase patients' health-related quality of life and leads to a high rate of patient satisfaction.
    Plastic and reconstructive surgery 12/2010; 126(6):2115-24. · 2.74 Impact Factor