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Postoperative Radiotherapy Breast Cancer Treatment: Musculoskeletal and Functional Implications- [electronic resource]
Postoperative Radiotherapy Breast Cancer Treatment: Musculoskeletal and Functional Implications- [electronic resource]

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자료유형  
 학위논문
Control Number  
0016935360
International Standard Book Number  
9798380859608
Dewey Decimal Classification Number  
614
Main Entry-Personal Name  
Braudy, Renata Anne.
Publication, Distribution, etc. (Imprint  
[S.l.] : University of Minnesota., 2023
Publication, Distribution, etc. (Imprint  
Ann Arbor : ProQuest Dissertations & Theses, 2023
Physical Description  
1 online resource(196 p.)
General Note  
Source: Dissertations Abstracts International, Volume: 85-05, Section: B.
General Note  
Advisor: Koehler, Linda A.
Dissertation Note  
Thesis (Ph.D.)--University of Minnesota, 2023.
Restrictions on Access Note  
This item must not be sold to any third party vendors.
Summary, Etc.  
요약Purpose/Hypotheses: The overall purpose of this study was to better understand the effect of post-lumpectomy radiation therapy (RT) on skeletal muscle morphology, shoulder kinematics, and shoulder function following treatment for unilateral breast cancer. We hypothesized that within the same breast cancer survivor, the affected (treated) side would demonstrate significantly different shoulder kinematics and skeletal muscle morphology than the unaffected (untreated) side. We also hypothesized that RT dose delivered to specific muscles within the radiation field would adversely affect self-reported shoulder function. A small study was first performed on healthy volunteers to determine intra-rater reliability of a novel method of skeletal muscle B-mode ultrasonography (US) to evaluate echo intensity (EI) and cross-sectional area (CSA) of three muscles within the radiation field that have the potential to affect shoulder function.Number of Participants: 31 (5 healthy volunteers for US reliability, 26 breast cancer survivors for main study)Materials and Methods: This was a single center, non-therapeutic, observational cross-sectional study with two parts. First, 5 healthy volunteers participated in the US reliability study which involved three repeated measures of the pectoralis major (PMaj), pectoralis minor (PMin), and serratus anterior (SA) bilaterally. Second, 26 breast cancer survivors who were at least 1-year post-completion of RT following lumpectomy plus sentinel lymph node biopsy for the treatment of unilateral breast cancer then participated in the main study. Three-dimensional kinematic data were collected using electromagnetic sensors during forward shoulder flexion and abduction. Musculoskeletal US was used to determine skeletal muscle CSA and EI of the PMaj, PMin, and SA muscles of the treated and untreated sides. Radiation dose analyses were performed for those same 3 muscles using pre-existing computed tomography radiation simulation scans. The Penn Shoulder Score (PSS) and a custom questionnaire were also given to participants. Data were analyzed using Wilcoxon rank sum tests to determine difference across sides and groups, Spearman correlation to examine associations between variables, and multiple linear regression to examine covariate effects. Ultrasound intrarater reliability was performed on the healthy participants using intraclass correlation coefficient (ICC) analysis. Statistical significance cutoff value was set at 0.05 for all tests.Results: PMaj and PMin CSA and EI were reliable (ICC 0.70) and used in the breast cancer survivor study. SA CSA and EI were not reliable (ICC 0.7) and were used in the main study as exploratory analyses only. Breast cancer survivors demonstrated more sternoclavicular elevation during arm elevation on their affected side vs. their unaffected side. No significant differences existed between the affected and unaffected sides for other shoulder kinematic variables nor for ultrasound EI and CSA. In general, Penn Shoulder Score values were high, but a few specific functional movements were more commonly noted as being difficult which has clinical implications. Some PMin, PMaj, and SA radiation values were significantly correlated with multiple aspects of the PSS (total score and subscales). Trends were found for the PMin radiation dose and total radiation dose to affect the PSS, although correction for multiple testing made these statistically insignificant.Conclusions: Our data suggests that there may be a significant effect of postoperative RT on shoulder function in breast cancer survivors after unilateral lumpectomy and sentinel lymph node biopsy. Kinematic analysis demonstrated increased clavicle elevation on the affected side vs the unaffected side during arm elevation, but clinical relevance is uncertain. B-mode US was a reliable method of quantifying PMaj and PMin CSA and EI, but it was not reliable for the SA. B-mode US may not be sensitive enough to detect significant differences in EI and CSA in these muscles following RT. The PMaj, PMin, and SA receive a significant amount of radiation during treatment which may affect patient-reported shoulder pain. Although PSS scores were generally high, participants consistently reported 'some difficulty' with certain functional tasks that highlight the specific impairments many breast cancer survivors have following treatment. Additionally, breast cancer survivors complained not just of 'shoulder pain' but also stiffness, tightness, achiness, and other impairments in their shoulder, chest wall, and arm that need to be recognized and addressed by medical providers. This research demonstrates potential relationships between adjuvant RT and shoulder function which need to be further investigated to provide breast cancer survivors with the highest quality of life possible.
Subject Added Entry-Topical Term  
Health sciences.
Subject Added Entry-Topical Term  
Physical therapy.
Subject Added Entry-Topical Term  
Medicine.
Subject Added Entry-Topical Term  
Oncology.
Index Term-Uncontrolled  
Breast cancer
Index Term-Uncontrolled  
Radiation therapy
Index Term-Uncontrolled  
Shoulder flexion
Index Term-Uncontrolled  
Ultrasound intrarater reliability
Added Entry-Corporate Name  
University of Minnesota Rehabilitation Science
Host Item Entry  
Dissertations Abstracts International. 85-05B.
Host Item Entry  
Dissertation Abstract International
Electronic Location and Access  
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Control Number  
joongbu:639543

MARC

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■035    ▼a(MiAaPQ)AAI30691629
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a614
■1001  ▼aBraudy,  Renata  Anne.
■24510▼aPostoperative  Radiotherapy  Breast  Cancer  Treatment:  Musculoskeletal  and  Functional  Implications▼h[electronic  resource]
■260    ▼a[S.l.]▼bUniversity  of  Minnesota.  ▼c2023
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2023
■300    ▼a1  online  resource(196  p.)
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  85-05,  Section:  B.
■500    ▼aAdvisor:  Koehler,  Linda  A.
■5021  ▼aThesis  (Ph.D.)--University  of  Minnesota,  2023.
■506    ▼aThis  item  must  not  be  sold  to  any  third  party  vendors.
■520    ▼aPurpose/Hypotheses:  The  overall  purpose  of  this  study  was  to  better  understand  the  effect  of  post-lumpectomy  radiation  therapy  (RT)  on  skeletal  muscle  morphology,  shoulder  kinematics,  and  shoulder  function  following  treatment  for  unilateral  breast  cancer.  We  hypothesized  that  within  the  same  breast  cancer  survivor,  the  affected  (treated)  side  would  demonstrate  significantly  different  shoulder  kinematics  and  skeletal  muscle  morphology  than  the  unaffected  (untreated)  side.  We  also  hypothesized  that  RT  dose  delivered  to  specific  muscles  within  the  radiation  field  would  adversely  affect  self-reported  shoulder  function.  A  small  study  was  first  performed  on  healthy  volunteers  to  determine  intra-rater  reliability  of  a  novel  method  of  skeletal  muscle  B-mode  ultrasonography  (US)  to  evaluate  echo  intensity  (EI)  and  cross-sectional  area  (CSA)  of  three  muscles  within  the  radiation  field  that  have  the  potential  to  affect  shoulder  function.Number  of  Participants:  31  (5  healthy  volunteers  for  US  reliability,  26  breast  cancer  survivors  for  main  study)Materials  and  Methods:  This  was  a  single  center,  non-therapeutic,  observational  cross-sectional  study  with  two  parts.  First,  5  healthy  volunteers  participated  in  the  US  reliability  study  which  involved  three  repeated  measures  of  the  pectoralis  major  (PMaj),  pectoralis  minor  (PMin),  and  serratus  anterior  (SA)  bilaterally.  Second,  26  breast  cancer  survivors  who  were  at  least  1-year  post-completion  of  RT  following  lumpectomy  plus  sentinel  lymph  node  biopsy  for  the  treatment  of  unilateral  breast  cancer  then  participated  in  the  main  study.  Three-dimensional  kinematic  data  were  collected  using  electromagnetic  sensors  during  forward  shoulder  flexion  and  abduction.  Musculoskeletal  US  was  used  to  determine  skeletal  muscle  CSA  and  EI  of  the  PMaj,  PMin,  and  SA  muscles  of  the  treated  and  untreated  sides.  Radiation  dose  analyses  were  performed  for  those  same  3  muscles  using  pre-existing  computed  tomography  radiation  simulation  scans.  The  Penn  Shoulder  Score  (PSS)  and  a  custom  questionnaire  were  also  given  to  participants.  Data  were  analyzed  using  Wilcoxon  rank  sum  tests  to  determine  difference  across  sides  and  groups,  Spearman  correlation  to  examine  associations  between  variables,  and  multiple  linear  regression  to  examine  covariate  effects.  Ultrasound  intrarater  reliability  was  performed  on  the  healthy  participants  using  intraclass  correlation  coefficient  (ICC)  analysis.  Statistical  significance  cutoff  value  was  set  at  0.05  for  all  tests.Results:  PMaj  and  PMin  CSA  and  EI  were  reliable  (ICC    0.70)  and  used  in  the  breast  cancer  survivor  study.  SA  CSA  and  EI  were  not  reliable  (ICC    0.7)  and  were  used  in  the  main  study  as  exploratory  analyses  only.  Breast  cancer  survivors  demonstrated  more  sternoclavicular  elevation  during  arm  elevation  on  their  affected  side  vs.  their  unaffected  side.  No  significant  differences  existed  between  the  affected  and  unaffected  sides  for  other  shoulder  kinematic  variables  nor  for  ultrasound  EI  and  CSA.  In  general,  Penn  Shoulder  Score  values  were  high,  but  a  few  specific  functional  movements  were  more  commonly  noted  as  being  difficult  which  has  clinical  implications.  Some  PMin,  PMaj,  and  SA  radiation  values  were  significantly  correlated  with  multiple  aspects  of  the  PSS  (total  score  and  subscales).  Trends  were  found  for  the  PMin  radiation  dose  and  total  radiation  dose  to  affect  the  PSS,  although  correction  for  multiple  testing  made  these  statistically  insignificant.Conclusions:  Our  data  suggests  that  there  may  be  a  significant  effect  of  postoperative  RT  on  shoulder  function  in  breast  cancer  survivors  after  unilateral  lumpectomy  and  sentinel  lymph  node  biopsy.  Kinematic  analysis  demonstrated  increased  clavicle  elevation  on  the  affected  side  vs  the  unaffected  side  during  arm  elevation,  but  clinical  relevance  is  uncertain.  B-mode  US  was  a  reliable  method  of  quantifying  PMaj  and  PMin  CSA  and  EI,  but  it  was  not  reliable  for  the  SA.  B-mode  US  may  not  be  sensitive  enough  to  detect  significant  differences  in  EI  and  CSA  in  these  muscles  following  RT.  The  PMaj,  PMin,  and  SA  receive  a  significant  amount  of  radiation  during  treatment  which  may  affect  patient-reported  shoulder  pain.  Although  PSS  scores  were  generally  high,  participants  consistently  reported  'some  difficulty'  with  certain  functional  tasks  that  highlight  the  specific  impairments  many  breast  cancer  survivors  have  following  treatment.  Additionally,  breast  cancer  survivors  complained  not  just  of  'shoulder  pain'  but  also  stiffness,  tightness,  achiness,  and  other  impairments  in  their  shoulder,  chest  wall,  and  arm  that  need  to  be  recognized  and  addressed  by  medical  providers.  This  research  demonstrates  potential  relationships  between  adjuvant  RT  and  shoulder  function  which  need  to  be  further  investigated  to  provide  breast  cancer  survivors  with  the  highest  quality  of  life  possible.
■590    ▼aSchool  code:  0130.
■650  4▼aHealth  sciences.
■650  4▼aPhysical  therapy.
■650  4▼aMedicine.
■650  4▼aOncology.
■653    ▼aBreast  cancer
■653    ▼aRadiation  therapy
■653    ▼aShoulder  flexion
■653    ▼aUltrasound  intrarater  reliability
■690    ▼a0566
■690    ▼a0382
■690    ▼a0564
■690    ▼a0992
■71020▼aUniversity  of  Minnesota▼bRehabilitation  Science.
■7730  ▼tDissertations  Abstracts  International▼g85-05B.
■773    ▼tDissertation  Abstract  International
■790    ▼a0130
■791    ▼aPh.D.
■792    ▼a2023
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T16935360▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.
■980    ▼a202402▼f2024

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