scholarly journals Novel Wireless Bioimpedance Device for Segmental Lymphedema Analysis Post Dual-Site Free Vascularized Lymph Node Transfer: A Prospective Cohort Study

Sensors ◽  
2021 ◽  
Vol 21 (24) ◽  
pp. 8187
Author(s):  
Chang-Cheng Chang ◽  
Wei-Ling Jan ◽  
Cheng-Huei Juan ◽  
Nai-Hsin Meng ◽  
Bor-Shyh Lin ◽  
...  
Keyword(s):  
Lymph Node ◽  
Control Group ◽  
Distal Limb ◽  
Healthy Control ◽  
Wireless Device ◽  
The Difference ◽  
Lymph Node Transfer ◽  
Vascularized Lymph Node Transfer ◽  
Dual Site

An innovative wireless device for bioimpedance analysis was developed for post-dual-site free vascularized lymph node transfer (VLNT) evaluation. Seven patients received dual-site free VLNT for unilateral upper or lower limb lymphedema. A total of 10 healthy college students were enrolled in the healthy control group. The device was applied to the affected and unaffected limbs to assess segmental alterations in bioimpedance. The affected proximal limb showed a significant increase in bioimpedance at postoperative sixth month (3.3 [2.8, 3.6], p = 0.001) with 10 kHz currents for better penetration, although the difference was not significant (3.3 [3.3, 3.8]) at 1 kHz. The bioimpedance of the affected distal limb significantly increased after dual-site free VLNT surgery, whether passing with the 1 kHz (1.6 [0.7, 3.4], p = 0.030, postoperative first month; 2.8 [1.0, 4.2], p = 0.027, postoperative third month; and 1.3 [1.3, 3.4], p = 0.009, postoperative sixth month) or 10 kHz current ((1.4 [0.5, 2.7], p = 0.049, postoperative first month; 3.2 [0.9, 6.3], p = 0.003, postoperative third month; and 3.6 [2.5, 4.1], p < 0.001, postoperative sixth month). Bioimpedance alterations on the affected distal limb were significantly correlated with follow-up time (rho = 0.456, p = 0.029 detected at 10 kHz). This bioimpedance wireless device could quantitatively monitor the interstitial fluid alterations, which is suitable for postoperative real-time surveillance.

scholarly journals Long-Term Outcomes of Lymph Node Transfer in Secondary Lymphedema and Its Correlation with Flap Characteristics

Cancers ◽  
2021 ◽  
Vol 13 (24) ◽  
pp. 6198
Author(s):  
Dimitrios Dionyssiou ◽  
Alexandros Sarafis ◽  
Antonios Tsimponis ◽  
Asterios Kalaitzoglou ◽  
Georgios Arsos ◽  
...  
Keyword(s):  
Lymph Node ◽  
Major Complication ◽  
Vascular Pedicle ◽  
Long Term Outcomes ◽  
Secondary Lymphedema ◽  
Lymph Node Transfer ◽  
The Impact ◽  
Vascularized Lymph Node Transfer

Background: This retrospective study aimed to assess the impact of certain flap characteristics on long-term outcomes following microsurgical treatment in Breast Cancer-Related Lymphedema (BCRL) patients. Methods: Sixty-four out of 65 BCRL patients, guided by the “Selected Lymph Node” (“SeLyN”) technique, underwent Vascularized Lymph Node Transfer (VLNT) between 2012 and 2018. According to their surface size, flaps were divided into small (<25 cm2, n = 32) and large (>25 cm2, n = 32). Twelve large and six small flaps were combined with free abdominally based breast reconstruction procedures. Lymphedema stage, flap size, vascular pedicle and number of lymph nodes (LNs) were analyzed in correlation with long-term Volume Differential Reduction (VDR). Results: At 36-month follow-up, no major complication was recorded in 64 cases; one flap failure was excluded from the study. Mean flap size was 27.4 cm2, mean LNs/flap 3.3 and mean VDR 55.7%. Small and large flaps had 2.8 vs. 3.8 LNs/flap (p = 0.001), resulting in 49.6% vs. 61.8% VDR (p = 0.032), respectively. Lymphedema stage and vascular pedicle (SIEA or SCIA/SCIP) had no significant impact on VDR. Conclusion: In our series, larger flaps included a higher number of functional LNs, directly associated with better outcomes as quantified by improved VDR.

Vascularized lymph node transfer from thoracodorsal axis for congenital and post filarial lymphedema of the lower limb

2016 ◽  
Vol 115 (1) ◽  
pp. 78-83
Author(s):  
Hari Venkatramani ◽  
Senthil Kumaran ◽  
Shivannaiah Chethan ◽  
Shanmuganathan Raja Sabapathy
Keyword(s):  
Lymph Node ◽  
Lower Limb ◽  
Lymph Node Transfer ◽  
Vascularized Lymph Node Transfer

scholarly journals Urine CA-2 as a biomarker for diagnosis urinary stone and prediction of its complications

2020 ◽  
Author(s):  
Yuan-jing Leng ◽  
Hai-bin Zhou ◽  
Jiang-ling Fu ◽  
Wen-juan Wang
Keyword(s):  
Healthy Subjects ◽  
Characteristic Curve ◽  
Urinary Stone ◽  
Urinary Stones ◽  
Enzyme Linked Immunosorbent Assay ◽  
Control Group ◽  
Healthy Control ◽  
The Mean ◽  
The Difference ◽  
The Relationship

Abstract PURPOSECarbonic anhydrase-2 (CA-2) plays a role in mineralization and calcification in organism. Strong evidence suggests that CA-2 is associated with urolithiasis. However, the relationship between CA-2 and urinary stone remains unclear. The study aimed to assess the association of urine CA-2 (uCA-2) level and the potential risk of urinary stone.METHODSFrom March 2017 to November 2019, a prospective cohort study was conducted on patients with urinary stones and healthy subjects to determine the pretreatment uCA-2 level detection by Enzyme linked immunosorbent assay (ELISA). The difference of uCA-2 level between patients with urinary stones and healthy subjects was compared. Then comparison between stone patients with complications and without complications was carried out as well as correlation analysis to detect factors associated with biomarker expression.RESULTS118 patients with urinary stones were into urinary stones group and 42 healthy subjects were into healthy control group. The mean pretreatment uCA-2 level was significantly higher in patients with urinary stones group than healthy controls group (P=0.028). Furthermore, The uCA-2 level was positive correlation with urinary stones complications (R=0.379, P=0.000), especially pain complications (R=0.524, P=0.000) and hematuria complications (R=0.374, P=0.000). Receiver operating characteristic curve (ROC) analysis that a uCA-2 level threshold of 10.94 ng/mL had 83.67% sensitivity and 68.12% specificity for predicting urinary stones complications. CONCLUSIONSExcessive uCA-2 excretion is a major risk factor for urinary stone. Our findings suggested that uCA-2 may be used as an unappreciated biomarker for the diagnosis urinary stone in patients and to predict its complications.

Vascularized Lymph Node Transfer for the Treatment of Lymphedema

Lymphedema ◽  
2017 ◽  
pp. 637-652
Author(s):  
Laurence S. Paek ◽  
Joseph M. Baylan ◽  
Corrine Becker ◽  
Dung H. Nguyen
Keyword(s):  
Lymph Node ◽  
Lymph Node Transfer ◽  
Vascularized Lymph Node Transfer

Citation Advantage of Promoted Articles in a Cross-Publisher Distribution Platform: 36-month Follow-up to a Randomized Controlled Trial (Preprint)

2021 ◽  
Author(s):  
Paul Kudlow ◽  
Tashauna Brown
Keyword(s):  
Randomized Controlled Trial ◽  
Controlled Trial ◽  
Control Group ◽  
Digital Tool ◽  
Randomized Controlled ◽  
Subject Areas ◽  
The Subject ◽  
The Difference ◽  
Citation Advantage

BACKGROUND There are limited evidence-based strategies that have been shown to increase the rate at which peer-reviewed articles are cited. In a previously reported randomized controlled trial we demonstrated that promotion of article links in an online cross-publisher distribution platform (TrendMD) persistently augments citation rates after 12 months, leading to a statistically significant, 50% increase in citations relative to control. OBJECTIVE To investigate if the citation advantage of promoted articles upholds after 36-months. METHODS Three thousand two hundred articles published in 64 peer-reviewed journals across eight subject areas were block randomized at the subject level to either the TrendMD group (n=1600) or the control group (n=1600) of the study. Articles were promoted in the TrendMD Network for 6 months. We compared the citation rates in both groups after 36 months. RESULTS At 36 months, we found the citation advantage endured; articles randomized to TrendMD showed a 28% increase in mean citations relative to control. The difference in mean citations at 36 months for articles randomized to TrendMD versus control was 10.52, 95% CI [3.79, 17.25] and was statistically significant (p=0.001). CONCLUSIONS To our knowledge, this is the first randomized controlled trial to demonstrate how a post-publication article promotion intervention can be used to persistently augment citations of peer-reviewed articles. TrendMD is an efficient digital tool for knowledge translation and dissemination to targeted audiences to facilitate uptake of research.

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