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A Successful Outcome after Lymphaticovenular Anastomosis Using a Contralateral Augmented Reality Mapping Technique in a Lymphedema Patient Secondary to a Mycobacterium abscessus Infection.

ABSTRACT: We report a case of extremity lymphedema after a Mycobacterium abscessus infection in a 43-year-old man with anti-interferon-γ autoantibody syndrome. Lymphaticovenular anastomosis was performed using the contralateral healthy or less severe limb as a mirror image to map the lymph vessels in the edematous limb. A satisfying outcome was provided after the surgery. No report of lymphedema caused by this condition has been previously reported in the literature.

SUBMITTER: Yodrabum N

PROVIDER: S-EPMC9532031 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature

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A Successful Outcome after Lymphaticovenular Anastomosis Using a Contralateral Augmented Reality Mapping Technique in a Lymphedema Patient Secondary to a <i>Mycobacterium abscessus</i> Infection.

Yodrabum Nutcha N Tianrungroj Jirapat J

Plastic and reconstructive surgery. Global open 20221005 10

We report a case of extremity lymphedema after a <i>Mycobacterium abscessus</i> infection in a 43-year-old man with anti-interferon-γ autoantibody syndrome. Lymphaticovenular anastomosis was performed using the contralateral healthy or less severe limb as a mirror image to map the lymph vessels in the edematous limb. A satisfying outcome was provided after the surgery. No report of lymphedema caused by this condition has been previously reported in the literature. ...[more]

PMID: 36212085

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Project description:Lymphedema can be a debilitating condition, causing a great decrease in a person's quality of life (QoL). Treatment with lymphaticovenular anastomosis (LVA), in which an anastomosis is created between the lymphatic and venous system, may attenuate lymphedema symptoms and reduce swelling. In this study, we share the results using LVA to treat breast cancer-related lymphedema (BCRL) at our institution.Patients were eligible for inclusion if they suffered from unilateral BCRL, if functional lymphatics were available, if compression therapy was used for at least 6 months, and if the follow-up was 12 months at minimum. Lymph vessel functionality was assessed preoperatively using indocyanine green (ICG). During surgery, 1-3 anastomoses were created and shunt patency was confirmed using ICG. Arm volumes were measured before surgery and at 6- and 12-month follow-up. QoL was measured before surgery and at 6-month follow-up. Arm volume differences between the healthy arm and affected arm were compared between the time points.Twenty-nine consecutive female patients with unilateral BCRL were included. The preoperative mean difference in arm volumes was 701 ± 435 ml (36.9%). This was reduced to 496 ± 302 ml (24.7%) at 6-month follow-up (p = 0.00). At 12-month follow-up, the mean difference in arm volume was 467 ± 303 ml (23.5%) (p = 0.02). The overall perceived QoL was increased from 5.8 ± 1.1 to 7.4 ± 0.7 (p = 0.00). The functionality score decreased from 2.2 to 1.8 (p = 0.00), the appearance score decreased from 2.6 to 1.9 (p = 0.00), the symptoms score decreased from 2.8 to 1.8 (p = 0.00), and the mood score decreased from 2.7 to 1.5 (p = 0.00). Fifteen patients (53.6%) were able to discontinue the use of compression garment.Treatment with LVAs is effective in reducing arm volume difference in patients suffering from BCRL. Although no complete reduction of the edema was achieved at 12-month follow-up, the procedure significantly increased the patients' QoL.

Project description:Background: Educators often face difficulties in explaining abstract concepts such as vectors. During the ongoing coronavirus disease 2019 (COVID-19) pandemic, fully online classes have also caused additional challenges to using conventional teaching methods. To explain a vector concept of more than 2 dimensions, visualization becomes a problem. Although Microsoft PowerPoint can integrate animation, the illustration is still in 2-dimensions. Augmented reality (AR) technology is recommended to aid educators and students in teaching-learning vectors, namely via a vector personal computer augmented reality system (VPCAR), to fulfil the demand for tools to support the learning and teaching of vectors. Methods: A PC learning module for vectors was developed in a 3-dimensional coordinate system by using AR technology. Purposive sampling was applied to get feedback from educators and students in Malaysia through an online survey. The supportiveness of using VPCAR based on six items (attractiveness, easiness, visualization, conceptual understanding, inspiration and helpfulness) was recorded on 5-points Likert-type scales. Findings are presented descriptively and graphically. Results: Surprisingly, both students and educators adapted to the new technology easily and provided significant positive feedback that showed a left-skewed and J-shaped distribution for each measurement item, respectively. The distributions were proven significantly different among the students and educators, where supportive level result of educators was higher than students. This study introduced a PC learning module other than mobile apps as students mostly use laptops to attend online class and educators also engage other IT tools in their teaching. Conclusions: Based on these findings, VPCAR provides a good prospect in supporting educators and students during their online teaching-learning process. However, the findings may not be generalizable to all students and educators in Malaysia as purposive sampling was applied. Further studies may focus on government-funded schools using the newly developed VPCAR system, which is the novelty of this study.

Dataset Information

A Successful Outcome after Lymphaticovenular Anastomosis Using a Contralateral Augmented Reality Mapping Technique in a Lymphedema Patient Secondary to a Mycobacterium abscessus Infection.

Publications

A Successful Outcome after Lymphaticovenular Anastomosis Using a Contralateral Augmented Reality Mapping Technique in a Lymphedema Patient Secondary to a <i>Mycobacterium abscessus</i> Infection.

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