... adhesive otitis media, which sometimes progress to pars tensa cholesteatoma. When and how children with adhesive otitis ... of children with adhesive otitis media and pars tensa cholesteatoma, and to determine the risk factors of ... and 14 ears of 13 children with pars tensa cholesteatoma (tensa cholesteatoma group) who underwent tympanoplasty were included in ... ears showing undeveloped mastoid air cells in the tensa cholesteatoma group was significantly larger than that in ... was more frequently found in ears with pars tensa cholesteatoma than in ears with adhesive otitis media ( ...
Tópico(s): Tracheal and airway disorders
2006 - Elsevier BV | Otolaryngologic Clinics of North America
Saeko Yoshida, Saori Seki, Tomonori Sugiyama, Saori Kikuchi, Naohiro Yoshida, Yukiko Iino,
... adhesive otitis media, which sometimes progress to pars tensa cholesteatoma. When and how children with adhesive otitis ... of children with adhesive otitis media and pars tensa cholesteatoma, and to determine the risk factors of ... and 14 ears of 13 children with pars tensa cholesteatoma (tensa cholesteatoma group) who underwent tympanoplasty were included in ... ears showing undeveloped mastoid air cells in the tensa cholesteatoma group was significantly larger than that in ... was more frequently found in ears with pars tensa cholesteatoma than in ears with adhesive otitis media ( ...
Tópico(s): Congenital Ear and Nasal Anomalies
2022 - Elsevier BV | Auris Nasus Larynx
Akihiro Shinnabe, Mariko Hara, Masayo Hasegawa, Shingo Matsuzawa, Hiromi Kanazawa, Takeharu Kanazawa, Naohiro Yoshida, Yukiko Iino,
... ear ventilation mechanisms between pars flaccida and pars tensa cholesteatoma.Retrospective case review.A referral hospital otolaryngology ... 45.7 yr) and 19 ears with pars tensa cholesteatoma (mean age, 58.8 yr) were included. ... 3 (15.7%) of 19 patients with pars tensa cholesteatoma were habitual sniffers (p = 0.5). Preoperative ... common in ears with pars flaccida than pars tensa cholesteatoma (42.8% versus 7.1%, p < 0. ... pattern was more common in ears with pars tensa than pars flaccida cholesteatoma (85.8% versus 42. ...
Tópico(s): Nasal Surgery and Airway Studies
2012 - Lippincott Williams & Wilkins | Otology & Neurotology
Snežana Ješić, Lejla Hilmo Rovcanin, Ognjen Djordjije Jovicevic, Ana Jotić, Nikola Slijepčević, Vladimir Radoslav Ljubic,
Determine predictive values of preoperative stages of pars tensa retractions, coexisting attic retraction and preoperative air conduction for ossicular destruction in isolated and combined pars tensa retraction, and predictors for successful tympanic grafts after ... included in the study: 23 with isolated pars tensa retraction (median age, 11), 25 with combined pars tensa and attic retractions (median age, 13).Otomicroscopy, pure ... postoperative retraction of the grafts.Stage of pars tensa retraction and preoperative air conduction thresholds do not ...
Tópico(s): Congenital Ear and Nasal Anomalies
2014 - Lippincott Williams & Wilkins | Otology & Neurotology
John Cutajar, Maryam Nowghani, Bharti Tulsidas-Mahtani, John Hamilton,
... quantify the natural behavior of asymptomatic deep pars tensa retraction in both adults and children. MATERIALS and METHODS:Asymptomatic pars tensa retraction pockets that contacted the promontory were included.Persistently symptomatic pars tensa retraction, pars tensa retraction that did not contact the promontory, patients ... and five children and two adults developed pars tensa cholesteatomas.No significant difference was observed between children ... developed attic cholesteatomas without progression of the pars tensa disease.Furthermore, the ears of 20 children, but ...
Tópico(s): Otitis Media and Relapsing Polychondritis
2018 - AVES | The Journal of International Advanced Otology
... subdivision of cholesteatoma types into attic and pars tensa cholesteatomas, and subdivided the latter further into tensa retraction cholesteatoma and sinus cholesteatomas. Tensa retraction cholesteatoma is defined as arising from a retraction or perforation of the whole pars tensa, whereas sinus cholesteatoma is defined as arising from ... perforation of the postero-superior part of the tensa. We present the long-term results obtained in tensa retraction cholesteatomas treated with one stage surgery from ...
Tópico(s): Otitis Media and Relapsing Polychondritis
1989 - Cambridge University Press | The Journal of Laryngology & Otology
MRC Multi-Centre Otitis Media Study Group,
... and any association, between retractions of the pars tensa and pars flaccida; to assess the effect of pars tensa and pars flaccida retractions on the hearing; to ... pure-tone audiometry. Results Retraction of the pars tensa to the incus or promontory occurred in 8% ... with a longer history of hearing problems. Pars tensa or pars flaccida retraction in association with OME did not materially affect the hearing. Pars tensa retractions, followed up over a 12-week period, ... minimal evidence to support the concept that pars tensa or pars flaccida retractions are a strong or ...
Tópico(s): Sinusitis and nasal conditions
2001 - Lippincott Williams & Wilkins | Otology & Neurotology
... sinus cholesteatomas with superioposterior retraction (perforation) of pars tensa, and 196 tensa retraction cholesteatomas extending from a retraction of the whole pars tensa. The late results were analyzed for each type ... in attic cholesteatoma and highest (13.3 %) in tensa retraction cholesteatoma. In all three types no residual ... and almost the same (21 %) in sinus and tensa retraction cholesteatoma. The hearing results were best in attic cholesteatoma and poorest in tensa retraction cholesteatoma. It is concluded that cholesteatoma surgery ...
Tópico(s): Linguistics and Cultural Studies
1989 - Karger Publishers | ORL
Sten Hellström, Jorge Spratley, Per‐Olof Eriksson, Manuel Pais‐Clemente,
... membrane. Background The normal semitransparent portions of pars tensa show strikingly few, small-caliber vessels under the otomicroscope. The major portion of a pars tensa seems to be devoid of blood vessels. In ... dramatically altered, and blood vessels traversing the pars tensa can be discernable. Methods The study was performed ... in the normally transparent portions of the pars tensa except single vessels in the posterior quadrant and ... view that the semitransparent portions of the pars tensa lack vascularity. In inflammation, new vessels are formed ...
Tópico(s): Ear and Head Tumors
2003 - Lippincott Williams & Wilkins | Otology & Neurotology
Chung-Yi Lee, John J. Rosowski,
... the two components of the tympanic membrane, pars tensa and pars flaccida. To analyze separately the different ... velocities of points near the center of p. tensa and p. flaccida in response to the external- ... The acoustic stiffness and inertance of both p. tensa and p. flaccida are altered by static pressure, ... of transfer-function phase angle. Compared to p. tensa, p. flaccida showed larger reductions in the velocity ... p. flaccida. We also describe, in both p. tensa and p. flaccida, a frequency dependence of the ...
Tópico(s): Acoustic Wave Resonator Technologies
2001 - Elsevier BV | Hearing Research
Nils Albiin, Sten Hellström, Bengt Salén, Lars‐Eric Stenfors, S. Wirell,
... flaccida, (2) the manubrial part of the pars tensa, and (3) the junction between the fibrocartilaginous ring ... carotid artery) supplied the periphery of the pars tensa with minute branches, localized immediately beneath the tympanal epithelium. The portion of the pars tensa between the manubrial part and the periphery lacked ... mechanical stimulation, a large portion of the pars tensa seemed to be devoid of vessels. The nutrition ... affected by an altered tension in the pars tensa.
Tópico(s): Vestibular and auditory disorders
1985 - Wiley | The Anatomical Record
... development and progression of tympanosclerosis in the pars tensa of rat tympanic membranes at various time intervals ... electron microscopic analysis was performed on the pars tensa of rats with induced effusions ranging from 1 ... be the main response of the rat pars tensa to prolonged sterile otitis media with effusion. The ... involvement of the different sublayers of the pars tensa was closely related to the duration of otitis ... for the study of tympanosclerosis in the pars tensa.
Tópico(s): Acoustic Wave Resonator Technologies
2002 - Wiley | The Laryngoscope
Liesbeth C. Kuypers, Joris Dirckx, Willem F. Decraemer, Jean‐Pierre Timmermans,
... membrane. Similar thickness distributions in all samples (pars tensa n = 11; pars flaccida n = 3) were observed. The pars tensa has a rather constant thickness of about 7 ... In the most superior parts of the pars tensa thickness becomes gradually twice as large. Thickness increases ... along the entire annular periphery of the pars tensa. Overall, the pars flaccida is thicker than the pars tensa and has a rugged surface. Its central region ...
Tópico(s): Marine animal studies overview
2005 - Elsevier BV | Hearing Research
Seyed Alireza Rohani, Soroush Ghomashchi, Sumit K. Agrawal, Hanif M. Ladak,
... to the Young's modulus of the pars tensa. The aim of this work is to estimate ... The Young's modulus of the human pars tensa was estimated through inverse finite-element modelling of ... were obtained under the assumptions that the pars tensa is linearly elastic, uniform, isotropic with a thickness ... limited to quasi-static loading. Estimates of pars tensa Young's modulus are sensitive to its thickness ...
Tópico(s): Underwater Acoustics Research
2017 - Elsevier BV | Hearing Research
Masaomi Motegi, Yutaka Yamamoto, Takeshi Tada, Masahiro Takahashi, Sayaka Sampei, Hiromi Sano, Tsunetaro Morino, Manabu Komori, Masahiro Miura, Kazuhisa Yamamoto, Yuichiro Yaguchi, Yuika Sakurai, Hiromi Kojima,
... the clinical characteristics of extent patterns in pars tensa cholesteatoma.This was a retrospective chart review. Forty-four patients with pars tensa cholesteatoma who underwent primary surgery at a tertiary ... age, clinical background, and stage classification of pars tensa cholesteatoma (including the extent of cholesteatoma and involvement ... criteria.We determined the clinical characteristics of pars tensa cholesteatoma based on the novel and well-defined ...
Tópico(s): Congenital Ear and Nasal Anomalies
2019 - AVES | The Journal of International Advanced Otology
... discrete pathways were identified. Movement on the pars tensa was centrifugal in all directions from the edge ... surface. This supported our previous suggestion that pars tensa epithelial migration is based on growth of the ... the rim of the fundus producing the pars tensa and deep external canal epithelia. This process, however, ... at that rim. This suggests that the pars tensa epithelium grows and moves without the active involvement ...
Tópico(s): Infant Health and Development
1990 - Wiley | American Journal of Anatomy
... as attic cholesteatoma, developing from Shrapnell's membrane; tensa cholesteatoma, originating in pars tensa, which is subdivided into tensa retraction cholesteatoma involving the entire pars tensa, and sinus cholesteatomas, developing from a posterosuperior retraction ( ...
Tópico(s): Nasal Surgery and Airway Studies
1988 - American Medical Association | Archives of Otolaryngology - Head and Neck Surgery
Hyung Jong Kim, Steven P. Tinling, Richard A. Chole,
... external auditory canal (EAC) and at the pars tensa indicating an altered differentiation and migration of keratinocytes. ... keratinizing squamous epithelium, increased only at the pars tensa of the tympanic membrane, indicating basal keratinocyte hyperplasia. ... the annular EAC, and at the peripheral pars tensa, indicating increased terminal differentiation of keratinocytes. CK13/16, ... of the EAC, and at the peripheral pars tensa. However, it decreased in the basal layer of ...
Tópico(s): Skin and Cellular Biology Research
2002 - Korean Academy of Medical Sciences | Journal of Korean Medical Science
V. Couloigner, N Molony, P Viala, Ph. Contencin, P Narcy, T. Van Den Abbeele,
... pocket of the posterosuperior part of the pars tensa and operated on by pocket excision and cartilage ... and when the whole surface of the pars tensa was reinforced (χ2 test, p < 0.05 for ... reinforcement of the whole surface of the pars tensa is probably the best treatment of a severe ...
Tópico(s): Congenital Ear and Nasal Anomalies
2003 - Lippincott Williams & Wilkins | Otology & Neurotology
Cem Uzun, Per Cayé‐Thomasen, Janne Andersen, Mirko Tos,
... grafting after one‐stage surgery in children with tensa cholesteatoma. Study Design : In children aged 5 to 15 years (mean, 9.5 years) with tensa cholesteatoma, cartilage palisade tympanoplasty was performed in 32 ... nor between the two groups when dividing into tensa retraction and sinus cholesteatoma subgroups. When comparing the ...
Tópico(s): Speech and Audio Processing
2003 - Wiley | The Laryngoscope
Seyyed M. Hesabgar, Harry Marshall, Sumit K. Agrawal, Abbas Samani, Hanif M. Ladak,
... done in most cases on the posterior pars tensa. The unloaded shape of each eardrum was measured ... estimated average Young's modulus for the pars tensa was found to be 21.7 ± 1.2 ... is sensitive to the thickness of the pars tensa used in the model but is not sensitive ... pars flaccida and manubrium or to the pars tensa/pars flaccida separation conditions.
Tópico(s): Reconstructive Surgery and Microvascular Techniques
2010 - Elsevier BV | Hearing Research
... adults. Cholesteatoma was classified as: attic, sinus and tensa cholesteatoma. Classical canal wall-up or wall-down ... and sinus cholesteatomas, and in 15.5% of tensa cholesteatomas. <i>Conclusion:</i> Postoperative audiological results of ... worst anatomical and functional results are achieved in tensa cholesteatomas. The age of the patient and localization ... better for attic and sinus cholesteatomas, while in tensa cholesteatomas, an open technique seems more appropriate.
Tópico(s): Tracheal and airway disorders
2007 - Karger Publishers | ORL
Karin Stenfeldt, Cathrine Johansson, Sten Hellström,
... constituent of the lamina propria of the pars tensa, whereas type I collagen was found mainly in ... surrounding the main collagen layer of the pars tensa. After myringotomy, collagen types I and III were ... media. Conclusions The lamina propria of the pars tensa is mainly made up of type II collagen, ... flaccida. Thus the fibrous structure of the pars tensa and flaccida is composed of diverse collagen types, ...
Tópico(s): Neuropeptides and Animal Physiology
2006 - American Medical Association | Archives of Otolaryngology - Head and Neck Surgery
Giedrė Raustytė, Per Cayé‐Thomasen, Ann Hermansson, Henrik Andersen, Jens Thomsen,
... connective tissue layers of the pars flaccida and tensa. Late accumulation occurred in the lamina propria of pars tensa, more extensively in myringotomized ears. OPN expression was ... cells including especially macrophages and late in pars tensa fibrocytes. OPG expression was initially located to inflammatory cells and late to pars tensa fibrocytes and the inner basal membrane of pars ...
Tópico(s): Bone and Dental Protein Studies
2005 - Elsevier BV | International Journal of Pediatric Otorhinolaryngology
Joanne Anderson, Per Cayé‐Thomasen, Mirko Tos,
... of the eardrum after surgery for sinus or tensa retraction cholesteatoma in children, with respect to postoperative ... 15 years, underwent surgery for either sinus or tensa retraction cholesteatoma. The eardrum was reconstructed using cartilage ... and cartilage palisade grafting for drum reconstruction after tensa cholesteatoma surgery in children indicates that the palisade ...
Tópico(s): Tracheal and airway disorders
2004 - Lippincott Williams & Wilkins | Otology & Neurotology
Nima Maftoon, W. Robert J. Funnell, Sam J. Daniel, Willem F. Decraemer,
... manubrium and at several points on the pars tensa in the gerbil with open middle-ear cavity. ... different extents of opening. In all manubrial, pars-tensa and pars-flaccida responses, opening the cavity causes ... manubrium or the breakup frequency of the pars tensa. When the opening is gradually widened, the antiresonance ... validated and then applied to manubrial and pars-tensa responses. Estimating the ideal open-cavity responses will ...
Tópico(s): Structural Health Monitoring Techniques
2014 - Springer Science+Business Media | Journal of the Association for Research in Otolaryngology
Nima Maftoon, W. Robert J. Funnell, Sam J. Daniel, Willem F. Decraemer,
... of numerous features (umbo, pars-flaccida and pars-tensa displacement magnitudes, the resonance frequency and break-up ... at high frequencies (i.e., above the pars-tensa break-up). The behaviour of the pars tensa in the model is similar to what is ... s modulus, thickness and density of the pars tensa; the Young’s modulus of the stapedial annular ...
Tópico(s): Acoustic Wave Phenomena Research
2015 - Springer Science+Business Media | Journal of the Association for Research in Otolaryngology
Takehisa Saito, Tetsufumi Ito, Yumi Ito, Takechiyo Yamada, Masayuki Okamoto, Yasuhiro Manabe,
... flaccida retraction type cholesteatoma, and those with pars tensa retraction type cholesteatoma in combination with gustatory function. ... retraction type cholesteatoma, and 17 patients with pars tensa retraction type cholesteatoma were included. An average of ... of EGM thresholds were clarified in the pars tensa retraction type cholesteatoma group but not in the ... elevation of EGM threshold in patients with pars tensa retraction type cholesteatoma.
Tópico(s): Respiratory and Cough-Related Research
2016 - SAGE Publishing | Annals of Otology Rhinology & Laryngology
Issei Ichimiya, Yuichi Kurono, Goro Mogi,
... the annular and manubrial regions of the pars tensa. After the induction of otitis media, lymphocytes migrated ... regions, although the other regions of the pars tensa showed few of these cells. la-positive cells migrated into both pars tensa and pars flaccida. Mast cells did not show ... the annular and manubrial regions of the pars tensa are considered to be the immunologically potential sites, ...
Tópico(s): Otitis Media and Relapsing Polychondritis
1997 - Elsevier BV | American Journal of Otolaryngology
Shraddha Jain, Pragya Singh, Disha Methwani, Sanika Kalambe,
... form) or frank cholesteatoma (active form) in pars tensa or pars flaccida of tympanic membrane. A retraction ... flaccida squamous disease and 39 ears with Pars Tensa squamous disease were enrolled for the study. DSVE ... both pars flaccida (P = 0.0001) and pars tensa disease (P = 0.0007). Primary sclerotic or diploic ... ears with pars flaccida squamous disease than pars tensa COM (46.15% vs. 38.46%, P < 0. ...
Tópico(s): Congenital Ear and Nasal Anomalies
2018 - Springer Nature | Indian Journal of Otolaryngology and Head & Neck Surgery