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Prophylactic Exercise-Based Tongue Intervention on Swallow Function and Tongue Muscle Pathology in a Translational Model of Chemoradiation Therapy
Prophylactic Exercise-Based Tongue Intervention on Swallow Function and Tongue Muscle Path...
Prophylactic Exercise-Based Tongue Intervention on Swallow Function and Tongue Muscle Pathology in a Translational Model of Chemoradiation Therapy

Detailed Information

자료유형  
 학위논문 서양
최종처리일시  
20260202105123
ISBN  
9798291570883
DDC  
616.8
저자명  
Schaen-Heacock, Nicole E.
서명/저자  
Prophylactic Exercise-Based Tongue Intervention on Swallow Function and Tongue Muscle Pathology in a Translational Model of Chemoradiation Therapy
발행사항  
[Sl] : The University of Wisconsin - Madison, 2025
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2025
형태사항  
214 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-02, Section: B.
주기사항  
Advisor: Ciucci, Michelle R.
학위논문주기  
Thesis (Ph.D.)--The University of Wisconsin - Madison, 2025.
초록/해제  
요약Concomitant chemotherapy and radiation treatment (CCRT) for head and neck cancer (HNC) has devastating effects to swallow function, leading to dysphagia in over 2/3 of patients. Acute and long-term alterations to swallow function have detrimental impacts to health status and quality of life, with increased risk of aspiration/aspiration pneumonia, decreased diet tolerance, need for alternative means of nutrition, and increased feelings of isolation and depression reported. CCRT-induced injury to swallow-related structures leads to dysphagia. CCRT induces mitochondrial dysfunction, oxidative stress, microvascular injury, increased inflammatory markers, and tissue remodeling. However, the timing and extent to which tissue injury occurs in swallow-related structures is unclear. Various swallow-based interventions exist to support function/combat CCRT-induced changes. Dysphagia intervention often includes a myriad of exercises and high variability, including: type, duration, and dose of exercise; adherence; timing of implementation. Broadly, intervention has been shown to yield positive outcomes on swallow function in patients treated for HNC. Lingual exercise is a common clinical intervention method for patients diagnosed with HNC. It is often done in conjunction with other exercises and thus isolated impacts are less clear. Some research has been devoted to specifically assessing impacts of lingual exercise in this patient population, however conclusions are limited. Simultaneously, intervention initiation varies, which may impact both acute and long-term outcomes. Reactive intervention is defined as intervention initiated once a patient demonstrates signs or symptoms of dysphagia. In contrast, proactive intervention is defined as intervention initiated prior to the development of deficits, and is used as a way to maintain or support swallow function with the goal of mitigating treatment-induced deficits. It is broadly understood that proactive intervention is preferable, however, there is a lack of standardization and optimization for this patient population. Additionally, numerous factors contribute to the availability of and adherence to proactive intervention for patients, including provider access, education/knowledge of importance of proactive intervention, symptom burden, motivation, etc. Given this gap and limitations of current clinical understanding, this dissertation employed a translational rat model of CCRT to the tongue base, with the addition of a progressive resistance tongue training paradigm at early and delayed time points to assess the impacts of CCRT and timing of intervention implementation on both functional swallow- and related-outcomes as well as underlying peripheral mechanistic changes.This study found that CCRT negatively impacts bolus, tongue, and underlying mechanistic outcomes, and the addition of exercise intervention yields improved outcomes in the setting of CCRT. Early exercise intervention (i.e. proactive) yielded better outcomes compared to delayed intervention, thus indicating the importance of earlier intervention. CCRT to the tongue base resulted in decreased bolus speed, muscle fiber CSA, percent area collagen, and protrusive tongue force 6 months post-CCRT. Lingual exercise increased genioglossus (GG) collagen deposition and muscle fiber CSA, and improved bolus outcomes. The use of early intervention specifically resulted in increased bolus speed and bolus area compared to delayed intervention. In summation, the impacts of CCRT and lingual exercise on swallow function and underlying physiology persist beyond the acute post-treatment phase. This study provided translational evidence that proactive intervention is preferable in improving swallow outcomes and the underlying peripheral mechanism. 
일반주제명  
Speech therapy
일반주제명  
Health sciences
일반주제명  
Physiology
일반주제명  
Oncology
키워드  
Chemoradiation
키워드  
Dysphagia
키워드  
Rat
키워드  
Swallow function
키워드  
Translational model
기타저자  
The University of Wisconsin - Madison Communicative Disorders
기본자료저록  
Dissertations Abstracts International. 87-02B.
전자적 위치 및 접속  
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MARC

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■1001  ▼aSchaen-Heacock,  Nicole  E.
■24510▼aProphylactic  Exercise-Based  Tongue  Intervention  on  Swallow  Function  and  Tongue  Muscle  Pathology  in  a  Translational  Model  of  Chemoradiation  Therapy
■260    ▼a[Sl]▼bThe  University  of  Wisconsin  -  Madison▼c2025
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2025
■300    ▼a214  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  87-02,  Section:  B.
■500    ▼aAdvisor:  Ciucci,  Michelle  R.
■5021  ▼aThesis  (Ph.D.)--The  University  of  Wisconsin  -  Madison,  2025.
■520    ▼aConcomitant  chemotherapy  and  radiation  treatment  (CCRT)  for  head  and  neck  cancer  (HNC)  has  devastating  effects  to  swallow  function,  leading  to  dysphagia  in  over  2/3  of  patients.  Acute  and  long-term  alterations  to  swallow  function  have  detrimental  impacts  to  health  status  and  quality  of  life,  with  increased  risk  of  aspiration/aspiration  pneumonia,  decreased  diet  tolerance,  need  for  alternative  means  of  nutrition,  and  increased  feelings  of  isolation  and  depression  reported.  CCRT-induced  injury  to  swallow-related  structures  leads  to  dysphagia.  CCRT  induces  mitochondrial  dysfunction,  oxidative  stress,  microvascular  injury,  increased  inflammatory  markers,  and  tissue  remodeling.  However,  the  timing  and  extent  to  which  tissue  injury  occurs  in  swallow-related  structures  is  unclear.  Various  swallow-based  interventions  exist  to  support  function/combat  CCRT-induced  changes.  Dysphagia  intervention  often  includes  a  myriad  of  exercises  and  high  variability,  including:  type,  duration,  and  dose  of  exercise;  adherence;  timing  of  implementation.  Broadly,  intervention  has  been  shown  to  yield  positive  outcomes  on  swallow  function  in  patients  treated  for  HNC.  Lingual  exercise  is  a  common  clinical  intervention  method  for  patients  diagnosed  with  HNC.  It  is  often  done  in  conjunction  with  other  exercises  and  thus  isolated  impacts  are  less  clear.  Some  research  has  been  devoted  to  specifically  assessing  impacts  of  lingual  exercise  in  this  patient  population,  however  conclusions  are  limited.  Simultaneously,  intervention  initiation  varies,  which  may  impact  both  acute  and  long-term  outcomes. Reactive  intervention  is  defined  as  intervention  initiated  once  a  patient  demonstrates  signs  or  symptoms  of  dysphagia.  In  contrast,  proactive  intervention  is  defined  as  intervention  initiated  prior  to  the  development  of  deficits,  and  is  used  as  a  way  to  maintain  or  support  swallow  function  with  the  goal  of  mitigating  treatment-induced  deficits.  It  is  broadly  understood  that  proactive  intervention  is  preferable,  however,  there  is  a  lack  of  standardization  and  optimization  for  this  patient  population.  Additionally,  numerous  factors  contribute  to  the  availability  of  and  adherence  to  proactive  intervention  for  patients,  including  provider  access,  education/knowledge  of  importance  of  proactive  intervention,  symptom  burden,  motivation,  etc.  Given  this  gap  and  limitations  of  current  clinical  understanding,  this  dissertation  employed  a  translational  rat  model  of  CCRT  to  the  tongue  base,  with  the  addition  of  a  progressive  resistance  tongue  training  paradigm  at  early  and  delayed  time  points  to  assess  the  impacts  of  CCRT  and  timing  of  intervention  implementation  on  both  functional  swallow-  and  related-outcomes  as  well  as  underlying  peripheral  mechanistic  changes.This  study  found  that  CCRT  negatively  impacts  bolus,  tongue,  and  underlying  mechanistic  outcomes,  and  the  addition  of  exercise  intervention  yields  improved  outcomes  in  the  setting  of  CCRT.  Early  exercise  intervention  (i.e.  proactive)  yielded  better  outcomes  compared  to  delayed  intervention,  thus  indicating  the  importance  of  earlier  intervention.  CCRT  to  the  tongue  base  resulted  in  decreased  bolus  speed,  muscle  fiber  CSA,  percent  area  collagen,  and  protrusive  tongue  force  6  months  post-CCRT.  Lingual  exercise  increased  genioglossus  (GG)  collagen  deposition  and  muscle  fiber  CSA,  and  improved  bolus  outcomes.  The  use  of  early  intervention  specifically  resulted  in  increased  bolus  speed  and  bolus  area  compared  to  delayed  intervention.  In  summation,  the  impacts  of  CCRT  and  lingual  exercise  on  swallow  function  and  underlying  physiology  persist  beyond  the  acute  post-treatment  phase.  This  study  provided  translational  evidence  that  proactive  intervention  is  preferable  in  improving  swallow  outcomes  and  the  underlying  peripheral  mechanism. 
■590    ▼aSchool  code:  0262.
■650  4▼aSpeech  therapy
■650  4▼aHealth  sciences
■650  4▼aPhysiology
■650  4▼aOncology
■653    ▼aChemoradiation
■653    ▼aDysphagia
■653    ▼aRat
■653    ▼aSwallow  function
■653    ▼aTranslational  model
■690    ▼a0460
■690    ▼a0566
■690    ▼a0992
■690    ▼a0719
■71020▼aThe  University  of  Wisconsin  -  Madison▼bCommunicative  Disorders.
■7730  ▼tDissertations  Abstracts  International▼g87-02B.
■790    ▼a0262
■791    ▼aPh.D.
■792    ▼a2025
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17359469▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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