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A Simplified Protocol for Tracheostomy Decannulation in Patients Weaned off Prolonged Mechanical Ventilation
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作者:

Devaraja, K.
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Manipal Acad Higher Educ, Kasturba Med Coll, Dept Otorhinolaryngol & Head & Neck Surg, Manipal 576104, Karnataka, India Manipal Acad Higher Educ, Kasturba Med Coll, Dept Otorhinolaryngol & Head & Neck Surg, Manipal 576104, Karnataka, India

Majitha, C. S.
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Manipal Acad Higher Educ, Kasturba Med Coll, Dept Otorhinolaryngol & Head & Neck Surg, Manipal 576104, Karnataka, India Manipal Acad Higher Educ, Kasturba Med Coll, Dept Otorhinolaryngol & Head & Neck Surg, Manipal 576104, Karnataka, India

Pujary, Kailesh
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Manipal Acad Higher Educ, Kasturba Med Coll, Dept Otorhinolaryngol & Head & Neck Surg, Manipal 576104, Karnataka, India Manipal Acad Higher Educ, Kasturba Med Coll, Dept Otorhinolaryngol & Head & Neck Surg, Manipal 576104, Karnataka, India

Nayak, Dipak Ranjan
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Manipal Acad Higher Educ, Kasturba Med Coll, Dept Otorhinolaryngol & Head & Neck Surg, Manipal 576104, Karnataka, India Manipal Acad Higher Educ, Kasturba Med Coll, Dept Otorhinolaryngol & Head & Neck Surg, Manipal 576104, Karnataka, India

Rao, Shwethapriya
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Manipal Acad Higher Educ, Kasturba Med Coll, Dept Crit Care Med, Manipal, Karnataka, India Manipal Acad Higher Educ, Kasturba Med Coll, Dept Otorhinolaryngol & Head & Neck Surg, Manipal 576104, Karnataka, India
机构:
[1] Manipal Acad Higher Educ, Kasturba Med Coll, Dept Otorhinolaryngol & Head & Neck Surg, Manipal 576104, Karnataka, India
[2] Manipal Acad Higher Educ, Kasturba Med Coll, Dept Crit Care Med, Manipal, Karnataka, India
关键词:
tracheostomy;
mechanical ventilation;
ventilator weaning;
laryngoscope;
swallowing;
airway extubation;
TRACHEOTOMY;
CRITERIA;
D O I:
10.1055/s-0043-1776720
中图分类号:
R76 [耳鼻咽喉科学];
学科分类号:
100213 ;
摘要:
Introduction The criteria for the removal of the tracheostomy tube (decannulation) vary from center to center. Some perform an endoscopic evaluation under anesthesia or computed tomography, which adds to the cost and discomfort. We use a simple two-part protocol to determine the eligibility and carry out the decannulation: part I consists of airway and swallowing assessment through an office-based flexible laryngotracheoscopy, and part II involves a tracheostomy capping trial. Objective The primary objective was to determine the safety and efficacy of the simplified decannulation protocol followed at our center among the patients who were weaned off the mechanical ventilator and exhibited good swallowing function clinically. Methods Of the patients considered for decannulation between November 1st, 2018, and October 31st, 2020, those who had undergone tracheostomy for prolonged mechanical ventilation were included. The efficacy to predict successful decannulation was calculated by the decannulation rate among patients who had been deemed eligible for decannulation in part I of the protocol, and the safety profile was defined by the protocol's ability to correctly predict the chances of risk-free decannulation among those submitted to part II of the protocol. Results Among the 48 patients included (mean age: 46.5 years; male-to-female ratio: 3:1), the efficacy of our protocol in predicting the successful decannulation was of 87.5%, and it was was safe or reliable in 95.45%. Also, in our cohort, the decannulation success and the duration of tracheotomy dependence were significantly affected by the neurological status of the patients. Conclusion The decannulation protocol consisting of office-based flexible laryngotracheoscopy and capping trial of the tracheostomy tube can safely and effectively aid the decannulation process.
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页码:e211 / e218
页数:8
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共 23 条
[1]
Weaning from tracheotomy in long-term mechanically ventilated patients: feasibility of a decisional flowchart and clinical outcome
[J].
Ceriana, P
;
Carlucci, A
;
Navalesi, P
;
Rampulla, C
;
Delmastro, M
;
Piaggi, G
;
De Mattia, E
;
Nava, S
.
INTENSIVE CARE MEDICINE,
2003, 29 (05)
:845-848

Ceriana, P
论文数: 0 引用数: 0
h-index: 0
机构:
IRCCS, Resp Intens Care Unit, Ist Sci Pavia, Fdn S Maugeri, I-27100 Pavia, Italy IRCCS, Resp Intens Care Unit, Ist Sci Pavia, Fdn S Maugeri, I-27100 Pavia, Italy

Carlucci, A
论文数: 0 引用数: 0
h-index: 0
机构:
IRCCS, Resp Intens Care Unit, Ist Sci Pavia, Fdn S Maugeri, I-27100 Pavia, Italy IRCCS, Resp Intens Care Unit, Ist Sci Pavia, Fdn S Maugeri, I-27100 Pavia, Italy

Navalesi, P
论文数: 0 引用数: 0
h-index: 0
机构:
IRCCS, Resp Intens Care Unit, Ist Sci Pavia, Fdn S Maugeri, I-27100 Pavia, Italy IRCCS, Resp Intens Care Unit, Ist Sci Pavia, Fdn S Maugeri, I-27100 Pavia, Italy

Rampulla, C
论文数: 0 引用数: 0
h-index: 0
机构:
IRCCS, Resp Intens Care Unit, Ist Sci Pavia, Fdn S Maugeri, I-27100 Pavia, Italy IRCCS, Resp Intens Care Unit, Ist Sci Pavia, Fdn S Maugeri, I-27100 Pavia, Italy

Delmastro, M
论文数: 0 引用数: 0
h-index: 0
机构:
IRCCS, Resp Intens Care Unit, Ist Sci Pavia, Fdn S Maugeri, I-27100 Pavia, Italy IRCCS, Resp Intens Care Unit, Ist Sci Pavia, Fdn S Maugeri, I-27100 Pavia, Italy

Piaggi, G
论文数: 0 引用数: 0
h-index: 0
机构:
IRCCS, Resp Intens Care Unit, Ist Sci Pavia, Fdn S Maugeri, I-27100 Pavia, Italy IRCCS, Resp Intens Care Unit, Ist Sci Pavia, Fdn S Maugeri, I-27100 Pavia, Italy

De Mattia, E
论文数: 0 引用数: 0
h-index: 0
机构:
IRCCS, Resp Intens Care Unit, Ist Sci Pavia, Fdn S Maugeri, I-27100 Pavia, Italy IRCCS, Resp Intens Care Unit, Ist Sci Pavia, Fdn S Maugeri, I-27100 Pavia, Italy

Nava, S
论文数: 0 引用数: 0
h-index: 0
机构:
IRCCS, Resp Intens Care Unit, Ist Sci Pavia, Fdn S Maugeri, I-27100 Pavia, Italy IRCCS, Resp Intens Care Unit, Ist Sci Pavia, Fdn S Maugeri, I-27100 Pavia, Italy
[2]
Tracheostomy decannulation failure rate following critical illness: A prospective descriptive study
[J].
Choate, Kim
;
Barbetti, Julie
;
Currey, Judy
.
AUSTRALIAN CRITICAL CARE,
2009, 22 (01)
:8-15

Choate, Kim
论文数: 0 引用数: 0
h-index: 0
机构:
Alfred, Prahran, Vic 3181, Australia Deakin Univ, Alfred Deakin Nursing Res Ctr, Alfred Hosp, Burwood, Vic 3125, Australia

Barbetti, Julie
论文数: 0 引用数: 0
h-index: 0
机构:
Alfred, Prahran, Vic 3181, Australia Deakin Univ, Alfred Deakin Nursing Res Ctr, Alfred Hosp, Burwood, Vic 3125, Australia

Currey, Judy
论文数: 0 引用数: 0
h-index: 0
机构:
Deakin Univ, Alfred Deakin Nursing Res Ctr, Alfred Hosp, Burwood, Vic 3125, Australia
Deakin Univ, Fac Hlth Med Nursing & Behav Sci, Burwood, Vic 3125, Australia Deakin Univ, Alfred Deakin Nursing Res Ctr, Alfred Hosp, Burwood, Vic 3125, Australia
[3]
Criteria for tracheostomy decannulation: literature review
[J].
de Medeiros, Gisele Chagas
;
Sassi, Fernanda Chiarion
;
Lirani-Silva, Camila
;
Furquim de Andrade, Claudia Regina
.
CODAS,
2019, 31 (06)

de Medeiros, Gisele Chagas
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Sao Paulo, Fac Med, Hosp Clin, Div Fonoaudiol, Sao Paulo, SP, Brazil Univ Sao Paulo, Fac Med, Hosp Clin, Div Fonoaudiol, Sao Paulo, SP, Brazil

Sassi, Fernanda Chiarion
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Sao Paulo, Fac Med, Hosp Clin, Div Fonoaudiol, Sao Paulo, SP, Brazil
Univ Sao Paulo, Fac Med, Dept Fisioterapia Fonoaudiol & Terapia Ocupac, Sao Paulo, SP, Brazil Univ Sao Paulo, Fac Med, Hosp Clin, Div Fonoaudiol, Sao Paulo, SP, Brazil

Lirani-Silva, Camila
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Sao Paulo, Fac Med, Hosp Clin, Div Fonoaudiol, Sao Paulo, SP, Brazil Univ Sao Paulo, Fac Med, Hosp Clin, Div Fonoaudiol, Sao Paulo, SP, Brazil

Furquim de Andrade, Claudia Regina
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Sao Paulo, Fac Med, Hosp Clin, Div Fonoaudiol, Sao Paulo, SP, Brazil
Univ Sao Paulo, Fac Med, Dept Fisioterapia Fonoaudiol & Terapia Ocupac, Sao Paulo, SP, Brazil Univ Sao Paulo, Fac Med, Hosp Clin, Div Fonoaudiol, Sao Paulo, SP, Brazil
[4]
Clinical Criteria for Tracheostomy Decannulation in Subjects with Acquired Brain Injury
[J].
Enrichi, Claudia
;
Battel, Irene
;
Zanetti, Cristiano
;
Koch, Isabella
;
Ventura, Laura
;
Palmer, Katie
;
Meneghello, Francesca
;
Piccione, Francesco
;
Rossi, Simonetta
;
Lazzeri, Marta
;
Sommariva, Maurizio
;
Turolla, Andrea
.
RESPIRATORY CARE,
2017, 62 (10)
:1255-1263

Enrichi, Claudia
论文数: 0 引用数: 0
h-index: 0
机构:
Fdn Osped Neuroriabilitaz, Ist Ricovero & Cura Carattere Sci, Venice, Italy Fdn Osped Neuroriabilitaz, Ist Ricovero & Cura Carattere Sci, Venice, Italy

Battel, Irene
论文数: 0 引用数: 0
h-index: 0
机构:
Fdn Osped Neuroriabilitaz, Ist Ricovero & Cura Carattere Sci, Venice, Italy Fdn Osped Neuroriabilitaz, Ist Ricovero & Cura Carattere Sci, Venice, Italy

Zanetti, Cristiano
论文数: 0 引用数: 0
h-index: 0
机构:
Fdn Osped Neuroriabilitaz, Ist Ricovero & Cura Carattere Sci, Venice, Italy Fdn Osped Neuroriabilitaz, Ist Ricovero & Cura Carattere Sci, Venice, Italy

Koch, Isabella
论文数: 0 引用数: 0
h-index: 0
机构:
Fdn Osped Neuroriabilitaz, Ist Ricovero & Cura Carattere Sci, Venice, Italy Fdn Osped Neuroriabilitaz, Ist Ricovero & Cura Carattere Sci, Venice, Italy

Ventura, Laura
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Padua, Dipartimento Sci Stat, Padua, Italy Fdn Osped Neuroriabilitaz, Ist Ricovero & Cura Carattere Sci, Venice, Italy

Palmer, Katie
论文数: 0 引用数: 0
h-index: 0
机构:
Fdn Osped Neuroriabilitaz, Ist Ricovero & Cura Carattere Sci, Venice, Italy Fdn Osped Neuroriabilitaz, Ist Ricovero & Cura Carattere Sci, Venice, Italy

Meneghello, Francesca
论文数: 0 引用数: 0
h-index: 0
机构:
Fdn Osped Neuroriabilitaz, Ist Ricovero & Cura Carattere Sci, Venice, Italy Fdn Osped Neuroriabilitaz, Ist Ricovero & Cura Carattere Sci, Venice, Italy

Piccione, Francesco
论文数: 0 引用数: 0
h-index: 0
机构:
Fdn Osped Neuroriabilitaz, Ist Ricovero & Cura Carattere Sci, Venice, Italy Fdn Osped Neuroriabilitaz, Ist Ricovero & Cura Carattere Sci, Venice, Italy

Rossi, Simonetta
论文数: 0 引用数: 0
h-index: 0
机构:
Fdn Osped Neuroriabilitaz, Ist Ricovero & Cura Carattere Sci, Venice, Italy Fdn Osped Neuroriabilitaz, Ist Ricovero & Cura Carattere Sci, Venice, Italy

Lazzeri, Marta
论文数: 0 引用数: 0
h-index: 0
机构:
Osped Niguarda Ca Granda, Milan, Italy Fdn Osped Neuroriabilitaz, Ist Ricovero & Cura Carattere Sci, Venice, Italy

Sommariva, Maurizio
论文数: 0 引用数: 0
h-index: 0
机构:
Osped Niguarda Ca Granda, Milan, Italy Fdn Osped Neuroriabilitaz, Ist Ricovero & Cura Carattere Sci, Venice, Italy

Turolla, Andrea
论文数: 0 引用数: 0
h-index: 0
机构:
Fdn Osped Neuroriabilitaz, Ist Ricovero & Cura Carattere Sci, Venice, Italy Fdn Osped Neuroriabilitaz, Ist Ricovero & Cura Carattere Sci, Venice, Italy
[5]
Tracheostomy decannulation: marathons and finish lines
[J].
Heffner, John E.
.
CRITICAL CARE,
2008, 12 (02)

Heffner, John E.
论文数: 0 引用数: 0
h-index: 0
机构:
Providence Portland Med Ctr, Portland, OR 97213 USA
Oregon Hlth & Sci Univ, Portland, OR 97239 USA Providence Portland Med Ctr, Portland, OR 97213 USA
[6]
The indication of tracheotomy conditions the predictors of time to decannulation in critical patients
[J].
Hernandez, G.
;
Ortiz, R.
;
Pedrosa, A.
;
Cuena, R.
;
Vaquero Collado, C.
;
Gonzalez Arenas, P.
;
Garcia Plaza, S.
;
Canabal Berlanga, A.
;
Fernandez, R.
.
MEDICINA INTENSIVA,
2012, 36 (08)
:531-539

Hernandez, G.
论文数: 0 引用数: 0
h-index: 0
机构:
Hosp Infanta Sofia, Serv Cuidados Intens, Madrid, Spain Hosp Infanta Sofia, Serv Cuidados Intens, Madrid, Spain

Ortiz, R.
论文数: 0 引用数: 0
h-index: 0
机构:
Hosp Gen Ciudad Real, Serv Cuidados Intens, Ciudad Real, Spain Hosp Infanta Sofia, Serv Cuidados Intens, Madrid, Spain

Pedrosa, A.
论文数: 0 引用数: 0
h-index: 0
机构:
Hosp Virgen Salud, Serv Cuidados Intens, Toledo, Spain Hosp Infanta Sofia, Serv Cuidados Intens, Madrid, Spain

Cuena, R.
论文数: 0 引用数: 0
h-index: 0
机构:
Hosp Virgen Salud, Unidad Invest, Toledo, Spain Hosp Infanta Sofia, Serv Cuidados Intens, Madrid, Spain

Vaquero Collado, C.
论文数: 0 引用数: 0
h-index: 0
机构:
Hosp Infanta Sofia, Serv Cuidados Intens, Madrid, Spain Hosp Infanta Sofia, Serv Cuidados Intens, Madrid, Spain

Gonzalez Arenas, P.
论文数: 0 引用数: 0
h-index: 0
机构:
Hosp Infanta Sofia, Serv Cuidados Intens, Madrid, Spain Hosp Infanta Sofia, Serv Cuidados Intens, Madrid, Spain

Garcia Plaza, S.
论文数: 0 引用数: 0
h-index: 0
机构:
Hosp Infanta Sofia, Serv Cuidados Intens, Madrid, Spain Hosp Infanta Sofia, Serv Cuidados Intens, Madrid, Spain

Canabal Berlanga, A.
论文数: 0 引用数: 0
h-index: 0
机构:
Hosp Virgen Salud, Serv Cuidados Intens, Toledo, Spain Hosp Infanta Sofia, Serv Cuidados Intens, Madrid, Spain

Fernandez, R.
论文数: 0 引用数: 0
h-index: 0
机构:
Hosp St Joan de Deu Fundacio Althaia, Serv Cuidados Intens, Manresa, Spain Hosp Infanta Sofia, Serv Cuidados Intens, Madrid, Spain
[7]
Tracheostomy decannulation methods and procedures for assessing readiness for decannulation in adults: a systematic scoping review
[J].
Kutsukutsa, John
;
Kuupiel, Desmond
;
Monori-Kiss, Anna
;
del Rey-Pikch, Paula
;
Mashamba-Thompson, Tivani P.
.
INTERNATIONAL JOURNAL OF EVIDENCE-BASED HEALTHCARE,
2019, 17 (02)
:74-91

论文数: 引用数:
h-index:
机构:

论文数: 引用数:
h-index:
机构:

Monori-Kiss, Anna
论文数: 0 引用数: 0
h-index: 0
机构:
Semmelweis Univ, Inst Clin Expt Res, Budapest, Hungary Univ KwaZulu Natal, Dept Otorhinolaryngol Head & Neck Surg, Durban, South Africa

del Rey-Pikch, Paula
论文数: 0 引用数: 0
h-index: 0
机构:
Harvard TH Chan Sch Publ Hlth, Dept Global Hlth & Populat, Boston, MA USA Univ KwaZulu Natal, Dept Otorhinolaryngol Head & Neck Surg, Durban, South Africa

论文数: 引用数:
h-index:
机构:
[8]
BEDSIDE FIBEROPTIC BRONCHOSCOPY FOR TRACHEOSTOMY DECANNULATION
[J].
LEE, TS
;
WU, Y
.
RESPIRATORY MEDICINE,
1995, 89 (08)
:571-575

LEE, TS
论文数: 0 引用数: 0
h-index: 0
机构: Department of Anesthesiology, Harbor-UCLA Medical Center, Torrance

WU, Y
论文数: 0 引用数: 0
h-index: 0
机构: Department of Anesthesiology, Harbor-UCLA Medical Center, Torrance
[9]
Tracheostomy decannulation of patients with brain injury guided by flexible bronchoscope
[J].
Matesz Istvan
;
Denes Zoltan
;
Belinszkaja Galina
;
Frey Erika
;
Nagy Helga
;
Tarjanyi Szilvia
;
Zsiray Miklos
.
ORVOSI HETILAP,
2014, 155 (28)
:1108-1112

Matesz Istvan
论文数: 0 引用数: 0
h-index: 0
机构:
Orszagos Orvosi Rehabil Intezet, Budapest, Hungary Orszagos Orvosi Rehabil Intezet, Budapest, Hungary

Denes Zoltan
论文数: 0 引用数: 0
h-index: 0
机构:
Orszagos Orvosi Rehabil Intezet, Budapest, Hungary Orszagos Orvosi Rehabil Intezet, Budapest, Hungary

Belinszkaja Galina
论文数: 0 引用数: 0
h-index: 0
机构:
Orszagos Orvosi Rehabil Intezet, Budapest, Hungary Orszagos Orvosi Rehabil Intezet, Budapest, Hungary

Frey Erika
论文数: 0 引用数: 0
h-index: 0
机构:
Orszagos Orvosi Rehabil Intezet, Budapest, Hungary Orszagos Orvosi Rehabil Intezet, Budapest, Hungary

Nagy Helga
论文数: 0 引用数: 0
h-index: 0
机构:
Orszagos Orvosi Rehabil Intezet, Budapest, Hungary Orszagos Orvosi Rehabil Intezet, Budapest, Hungary

Tarjanyi Szilvia
论文数: 0 引用数: 0
h-index: 0
机构:
Orszagos Orvosi Rehabil Intezet, Budapest, Hungary Orszagos Orvosi Rehabil Intezet, Budapest, Hungary

Zsiray Miklos
论文数: 0 引用数: 0
h-index: 0
机构:
Orszagos Koranyi Tbc & Pulmonol Intezet, Budapest, Hungary Orszagos Orvosi Rehabil Intezet, Budapest, Hungary
[10]
Clinical Consensus Statement: Tracheostomy Care
[J].
Mitchell, Ron B.
;
Hussey, Heather M.
;
Setzen, Gavin
;
Jacobs, Ian N.
;
Nussenbaum, Brian
;
Dawson, Cindy
;
Brown, Calvin A., III
;
Brandt, Cheryl
;
Deakins, Kathleen
;
Hartnick, Christopher
;
Merati, Albert
.
OTOLARYNGOLOGY-HEAD AND NECK SURGERY,
2013, 148 (01)
:6-20

Mitchell, Ron B.
论文数: 0 引用数: 0
h-index: 0
机构:
UT SW Med Ctr, Dept Otolaryngol, Dallas, TX 75207 USA UT SW Med Ctr, Dept Otolaryngol, Dallas, TX 75207 USA

Hussey, Heather M.
论文数: 0 引用数: 0
h-index: 0
机构:
Amer Acad Otolaryngol Head & Neck Surg Fdn, Alexandria, VA USA UT SW Med Ctr, Dept Otolaryngol, Dallas, TX 75207 USA

Setzen, Gavin
论文数: 0 引用数: 0
h-index: 0
机构:
Albany ENT & Allergy Serv, PC, Albany, NY USA UT SW Med Ctr, Dept Otolaryngol, Dallas, TX 75207 USA

Jacobs, Ian N.
论文数: 0 引用数: 0
h-index: 0
机构:
Childrens Hosp Philadelphia, Ctr Pediat Airway Disorders, Philadelphia, PA 19104 USA UT SW Med Ctr, Dept Otolaryngol, Dallas, TX 75207 USA

Nussenbaum, Brian
论文数: 0 引用数: 0
h-index: 0
机构:
Washington Univ, Sch Med, Dept Otolaryngol, St Louis, MO 63110 USA UT SW Med Ctr, Dept Otolaryngol, Dallas, TX 75207 USA

Dawson, Cindy
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Iowa Hosp & Clin, Dept Otolaryngol Head & Neck Surg, Iowa City, IA 52242 USA UT SW Med Ctr, Dept Otolaryngol, Dallas, TX 75207 USA

Brown, Calvin A., III
论文数: 0 引用数: 0
h-index: 0
机构:
Brigham & Womens Hosp, Dept Emergency Med, Boston, MA 02115 USA UT SW Med Ctr, Dept Otolaryngol, Dallas, TX 75207 USA

Brandt, Cheryl
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Hosp Case Med Ctr, Ear Nose & Throat Inst, Cleveland, OH USA UT SW Med Ctr, Dept Otolaryngol, Dallas, TX 75207 USA

Deakins, Kathleen
论文数: 0 引用数: 0
h-index: 0
机构:
Rainbow Babies & Childrens Hosp, Pediat Resp Care Dept, Cleveland, OH 44106 USA UT SW Med Ctr, Dept Otolaryngol, Dallas, TX 75207 USA

Hartnick, Christopher
论文数: 0 引用数: 0
h-index: 0
机构:
Massachusetts Eye & Ear Infirm, Dept Otolaryngol, Boston, MA 02114 USA UT SW Med Ctr, Dept Otolaryngol, Dallas, TX 75207 USA

Merati, Albert
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Washington, Sch Med, Dept Otolaryngol Head & Neck Surg, Div Laryngol, Seattle, WA 98195 USA UT SW Med Ctr, Dept Otolaryngol, Dallas, TX 75207 USA