The effect of an evidence-based management plan on upper limb and trunk lymphoedema, function and quality of life in breast cancer survivors : a series of N=1 studies

Date
2022-12
Journal Title
Journal ISSN
Volume Title
Publisher
Stellenbosch : Stellenbosch University
Abstract
ENGLISH SUMMARY: Introduction: Breast cancer-related lymphoedema is a chronic, degenerative disease for which there is no cure, and which requires lifelong monitoring and management. Breast cancer-related upper limb and trunk lymphoedema is a complication arising from damage and trauma to the regional lymphatic system sustained during breast cancer treatment. While upper limb BC is well documented in the literature, little is known about the occurrence of, and the risk factors and interventions for, truncal lymphoedema following breast cancer treatment. Breast cancer-related lymphoedema is an independent predictor for reduced quality of life and has a negative socio-economic and psycho-social impact on breast cancer survivors. Objectives: The main aim of this study was to investigate the effect of an evidence-based multimodal management plan on upper limb and trunk lymphoedema, function and quality of life in breast cancer survivors with upper limb and trunk lymphoedema. Methodology: A non-concurrent series of N=1 experimental baseline (A1B1A2B2A3) design was utilised. Five participants who met the inclusion criteria, and gave informed consent, were included in the study. Baseline measurements were taken during the initial assessment to establish the presence and stage of lymphoedema, and these were repeated at the beginning and end of each phase of the study. Upper limb circumference was assessed using circumferential tape measurements which were converted to volume, in millilitres, using the truncated volume formula. The percentage tissue water content for the trunk was measured using the Moisture Meter D®. The function score was extracted from the function domain of the LYMQOL Quality of life was measured using the LYMQOL questionnaire. Two two-week intervention phases were administered, consisting of the following multimodal treatment techniques, namely: manual lymph drainage; compression therapy to the upper limb; skin care; exercise; deep breathing exercises; as well as adjunct low-level laser therapy and the application of Kinesio® tape to the trunk. Paired t-tests according to Satterthwaite’s method were used to perform all data analysis. A p-value of ≤0.05 was considered statistically significant. Clinical significance was determined using the prescribed minimal detectable change (MDC) values for each specific outcome measure. Results: The study participants (n=5) had a median age of 58 years (with a range of 47 to 64 years), a median body mass index (BMI) of 28.7kg/m2, and presented with stage 0 or 1 upper limb, and stage 2 trunk lymphoedema. The main finding of this study was a significant reduction in the volume of the affected upper limb for all participants between baseline and B2 (p=0.01, mean 188 and 95% CI [55.7,287.8]. This significant reduction (p=0.02, mean 243.4 and 95%CI [4.6,334.3] was maintained at the 10-week follow-up assessment (A3). A statistically significant reduction in the percentage tissue water content was found for the axilla region of the trunk from baseline to phase A3. A clinically non-meaningful reduction in the percentage of tissue water content was demonstrated for the chest area from baseline to A3; whereas the back region demonstrated a clinically meaningful increased percentage of tissue water content from baseline to A3. The results also showed a clinically meaningful improvement in function (0.82 points) for all participants, with a greater improvement for the youngest participant with the most recent diagnosis and medical management from phase B to A3. Finally, the participants all experienced a statistically significant improvement in overall quality of life (p=0.005). The significant improvement of quality of life was noted from phase B1 until the 10-week follow-up assessment phase (A3) for the study participants. Conclusion: The current study’s findings showed that an evidence-based multimodal management plan has a significant, positive effect on reducing the volume of the affected upper limb, as well as the percentage of tissue water content in the axilla region of the trunk. Furthermore, a clinically meaningful improvement in function, and a statistically significant improvement in the quality of life, of five breast cancer survivors presenting with upper limb and trunk lymphoedema, was noted. Further studies are recommended to investigate the long-term maintenance of effects of the multimodal management plan, as well as to determine the effectiveness of the individual components of the multimodal management. The design and validation of a quality-of-life questionnaire for the trunk region, and a screening tool for lymphoedema risk factor identification, would be of value for further research and clinical use.
AFRIKAANSE OPSOMMING: Inleiding: Borskanker verwante limfedeem is ‘n chroniese degeneratiewe siekte waarvoor daar tans geen geneesmiddel is nie en wat lewenslank gemonitor en behandel moet word. Limfedeem van die bolyf en boonste ledemate is ‘n komplikasie wat onstaan as borskanker behandeling die omliggende limfatiese stelsel beskadig. Borskanker verwante limfedeem van die boonste ledemate is goed verteenwoordig in die literatuur terwyl daar nog min inligting is oor die voorkoms, risiko-faktore en behandeling van bolyf limfedeem na borskankerbehandeling. Borskanker verwante limfedeem is ‘n onafhanklike voorspeller van laer lewenskwaliteit en het ‘n negatiewe sosio-ekonomiese en psigo-sosiale invloed op pasiente wat borskanker gehad het. Doelwitte: Die hoofdoel van hierdie studie was om die effek van ‘n bewysgebaseerde multimodale bestuursplan vir borskanker verwante boonste ledemaat en bolyf limfedeem op lewenskwaliteit en funksie te ondersoek. Metodologie: ‘n Nie-samelopende reeks van N=1 is as ‘n eksperimentele basislyn (A1B1A2B2A3) gebruik. Vyf deelnemers, wat onderhewig was aan kwalifiserende kriteria, het deelgeneem aan die studie nadat hulle formele ingeligte toestemming gegee het. Basiese maatstawwe is bewerkstellig gedurende die aanvanklike ondersoek en is herhaal aan die begin en einde van elke fase. Die boonste ledemate se omtrek is gemeet met ‘n maatband en omgeskakel na volume in milliliter. Die persentasie weefselvloeistof van die bolyf is gemeet deur Moisture Meter D®. Die lewenskwaliteit en funksie punte is bepaal deur die LYMQOL vraelys. Twee twee-weeklikse ingrypingsfases van die multimodale bestuursplan is toegedien wat limfdreinasie, oefening, kompressie terapie, velsorg, asemhalingsoefeninge, laser terapie en Kinesio® verbande ingesluit het. Gepaarde t-toetse volgens Satterthwaite’s se metode is gebruik in die data analise. ‘n p-waarde van ≤0.05 is beskou as statisties beduidend. Kliniese betekenisvolle faktore is bepaal deur die voorgeskryfde minimale waarneembare verandering waardes vir elke spesifieke uitkomsmaatstaf. Resultate: Die deelnemers (n=5) het ‘n gemiddelde ouderdom van 58 gehad (reikwydte van 47 tot 64 jaar) en ‘n gemiddelde liggaamsmassa-indeks (LMI) van 28.7kg/m2 en is gediagnoseer met fase 0 of 1 bolyf limfedeem. Die hoofbevinding van die studie was ‘n aansienlike vermindering in die volume van die boonste ledemate van alle deelnemers tussen basislyn en B2 (p=0.01, mean 188 and 95% CI [55.7,287.8]. Hierdie beduidende vermindering (p=0.02, mean 243.4 and 95%CI [4.6,334.3] is onderhou van basislyn tot die opvolg assessering (A3). Daar was ook ‘n beduidende vermindering in die weefselvloeistof in die okselstreek van die bolyf vanaf basislyn tot A3. ‘n Nie-betekenisvolle persentasie vermindering van die bors weefselvloeistof is vertoon van basislyn tot fase A3 . Die rug het egter ‘n verhoogde persentasie weefselvloeistof vertoon, van basislyn tot fase A3. Die resultate het ‘n klinies betekenisvolle verbetering van funksie vir al die deelnemers gewys (0.82 punte), met die grootste verbetering vir die jongste deelnemer wat onlangs gediagnoseer en behandel is van fase B tot A3. Die deelnemers het almal ‘n aansienlike verbetering in lewenskwaliteit ervaar (p=0.005). Hierdie bevindiginge is gekry deur die uitslae van die begin van die studie (B1) tot die einde van die finale opvolg-fase (A3) te vergelyk wat 10 weke beloop het. Slot: Die huidige studie se bevindiginge wys dat ‘n multimodale fisioterapie plan ‘n aansienlike positiewe effek het op volume vermindering van die boonste ledemate, asook ‘n aansienlike vermindering van die weefselvloeistof in die okselstreek van die bolyf. Verder het die bevindinge gewys dat die multimodale bestuursplan ‘n merkwaardige kliniese verbetering in funksie asook ‘n betekenisvolle verbetering in lewenskwaliteit vir borskanker pasiente met boonste ledemaat en bolyf limfedeem kan bewerkstellig. Verdere studies word aanbeveel om beide langtermyn terapie nakoming en die effekte van die multimodale bestuursplan te ondersoek, asook om die doeltreffendheid van die individuele komponente van die bestuursplan te bepaal. Die ontwerp en geldigheidsbepaling van 'n lewenskwaliteit vraelys vir die bolyf, en ‘n siftingsinstrument vir limfedeem as risikofaktor, sal ook van waarde wees in toekomstige studies.
Description
Thesis (MScPhysio)--Stellenbosch University, 2022.
Keywords
Lymphedema, Lymphedema -- Treatment, Breast -- Cancer -- Patients, UCTD
Citation