scholarly journals Biodegradable, Tissue Adhesive Polyester Blends for Safe, Complete Wound Healing

Author(s):  
John L. Daristotle ◽  
Metecan Erdi ◽  
Lung W. Lau ◽  
Shadden T. Zaki ◽  
Priya Srinivasan ◽  
...  
2021 ◽  
Vol 22 (2) ◽  
pp. 700
Author(s):  
Young Jae Moon ◽  
Sun-Jung Yoon ◽  
Jeung-Hyun Koo ◽  
Yihyun Yoon ◽  
Hye Jun Byun ◽  
...  

Accelerating wound healing with minimized bacterial infection has become a topic of interest in the development of the new generation of tissue bio-adhesives. In this study, we fabricated a hydrogel system (MGC-g-CD-ic-TCS) consisting of triclosan (TCS)-complexed beta-cyclodextrin (β-CD)-conjugated methacrylated glycol chitosan (MGC) as an antibacterial tissue adhesive. Proton nuclear magnetic resonance (1H NMR) and differential scanning calorimetry (DSC) results showed the inclusion complex formation between MGC-g-CD and TCS. The increase of storage modulus (G’) of MGC-g-CD-ic-TCS after visible light irradiation for 200 s indicated its hydrogelation. The swollen hydrogel in aqueous solution resulted in two release behaviors of an initial burst and sustained release. Importantly, in vitro and in vivo results indicated that MGC-g-CD-ic-TCS inhibited bacterial infection and improved wound healing, suggesting its high potential application as an antibacterial tissue bio-adhesive.


1969 ◽  
Vol 98 (3) ◽  
pp. 266 ◽  
Author(s):  
LTC Teruo Matsumoto

2013 ◽  
Vol 61 (10) ◽  
pp. E2105
Author(s):  
Norihiro Kobayashi ◽  
Muramatsu Toshiya ◽  
Tsukahara Reiko ◽  
Ito Yoshiaki ◽  
Hirano Keisuke

2021 ◽  
Vol 30 (9) ◽  
pp. 722-728
Author(s):  
Rutger C Lalieu ◽  
Willem Mulder ◽  
René D Bol Raap ◽  
Saskia Stolk ◽  
Casper Smit ◽  
...  

Aim: Hard-to-heal diabetic foot ulcers (DFUs) may increase the risk of amputation. This study reports the positive influence of hyperbaric oxygen therapy (HBOT) on hard-to-heal DFUs involving underlying bone. Method: A single-centre, retrospective cohort study reporting the results of HBOT and wound care on hard-to-heal University of Texas grade 3 DFUs (i.e., involving underlying bone) between 2013 and 2019. Outcome measures were primarily (near-) complete wound healing (i.e., ≥80% ulcer surface area reduction) and amputation rate (minor or major), and secondarily the number of hyperbaric sessions and improvement in quality of life (QoL) and pain score. Results: The study included 206 patients, of whom 74 (36%) achieved complete wound healing, and 75 (36%) near-complete healing. Amputations were performed in 27 patients (13%): 12 (6%) minor and 15 (7%) major. The median number of HBOT sessions was 42. Participants who achieved complete healing received a median of 43 sessions, compared with 10 for those who required major amputation. Patients with at least 30 sessions were less likely to undergo amputation (odds ratio: 0.08; 95% confidence interval (CI): 0.03–0.21). Mean QoL increased by 7.6 points (95%CI: 3.9–11.3; p<0.01) and median pain score fell from 3 to 1 (0–3) (p<0.01). Conclusions: The addition of HBOT to standard wound care may lead to a decreased amputation risk, improved wound healing and increased QoL for people with a University of Texas grade 3 DFU. An adequate number of HBOT sessions is required to achieve optimal clinical results. Objective selection criteria and shared decision-making are suggested to improve dropout rates.


2021 ◽  
Vol 30 (5) ◽  
pp. 414-418
Author(s):  
Sang Wha Kim ◽  
Hyung Sup Shim ◽  
Jihye Lee ◽  
Youn Hwan Kim

Objective: The extracellular matrix (ECM) is one of the most important elements in wound healing. Absence or dysfunction of the ECM may impair wound healing. The application of acellular dermal matrix (ADM) as a substitute for ECM has been suggested. This study investigated the clinical application and wound healing effects of a paste-type ADM in patients presenting with hard-to-heal wounds due to various causes. Method: Patients with a hard-to-heal wound for >1 month, from September 2017 to February 2019, were included in this study. After debridement, the paste-type ADM was applied, at zero (baseline), two and four weeks. After application of the paste-type ADM, a conventional dressing was applied using polyurethane foam. Wound size, the formation of granulation tissue, re-epithelialisation, complete healing and adverse events were recorded at zero (baseline), one, two, four, eight and 12 weeks after the initial treatment. Results: A total of 18 patients took part (eight male, 10 female, mean age of 56±16.16 years). The mean wound area decreased from 17.42±10.04cm2 to 12.73±7.60cm2 by week one (p<0.05), to 10.16±7.00 by week two (p<0.0005), to 5.56±5.25 by week four (p<0.0001), to 2.77±5.15 by week eight (p<0.0001) and to 2.07±4.78 by week 12 (p<0.0001). The number of patients with >75% re-epithelialisation increased from two (11.1%) at two weeks to five (27.8%) at four weeks, to 11 (61.1%) at eight weeks and to 13 (72.2%) at 12 weeks. The number of patients showing complete wound healing was two (11.1%) at four weeks, nine (50.0%) at eight weeks and 12 (66.7%) at 12 weeks. No adverse events were reported during treatment. Conclusion: The paste-type ADM used in this study is a viable option for facilitating wound healing; it can shorten hospitalisation, and promote a faster recovery and return to normal life activities.


Author(s):  
Muhammad Ahmad ◽  
Syed Tatheer Abbas ◽  
Amna Javaid ◽  
Naveed Arshad ◽  
Falak Shair

Objectives: To assess the comparison of harmonic scalpel versus Milligan Morgan technique in patients undergoing haemorrhoidectomy. Methodology: This randomized controlled trial study was conducted at General Hospital, Lahore, from March 2019 to September 2019. Informed consent was obtained from eligible 60 patients. Patients were randomly divided into two equal groups. In group-A, haemorrhoidectomy was conducted according to the harmonic scalpel method. In group-B, open haemorrhoidectomy was performed by the Milligan Morgan procedure. Data was assembled through a designed questionnaire and investigated via SPSS version 25. Data were stratified for descriptive statistics, level of haemorrhoids and period of haemorrhoids. Post-stratification, independent sample t-test was used. Results: Mean age of both groups patients were 44.6±7.6 and 43.8±8.2 years, respectively. In group-A, mean operative time was 20.8±2.8 minutes, while 26.5±2.8 minutes in group-B, which was statistically significant with p-value of 0.001. In group-A, mean convalescence period was 9.7±2.9 days, while 13.4±3.7 days in group-B, which was statistically significant with p-value of 0.001. The mean convalescence period with harmonic scalpel method was 7.4 days (range 5–14, SD 3.6) versus 18.6 days (range 7–30, SD 5.4) with Milligan Morgan technique (P?0.001). This research observed that harmonic scalpel method required almost six weeks for complete wound healing, whereas in  Milligan Morgan technique, complete wound healing was achieved after three months (P<0.05). Conclusion: Harmonic scalpel haemorrhoidectomy found an advantageous method when assessing the operative time and convalescence period. Hence, Harmonic scalpel haemorrhoidectomy can be adapted as a safe and effective alternative method for treating symptomatic haemorrhoids. Continuous...


2019 ◽  
Vol 30 (13) ◽  
pp. 1275-1283 ◽  
Author(s):  
Jillian Pintye ◽  
Kathleen E Wirth ◽  
Conrad Ntsuape ◽  
Nora J Kleinman ◽  
Lisa P Spees ◽  
...  

To maximize the public health benefits of voluntary medical male circumcision (VMMC) in real-world settings, sexual abstinence is recommended for six weeks following VMMC to ensure complete wound healing. We determined the frequency and predictors of early resumption of sex among a cohort of HIV-negative, sexually active men 18–49 years who underwent VMMC within a public-sector clinic in Botswana. Multivariate robust Poisson regression methods were used to identify predictors of having any sexual intercourse in the last six weeks since undergoing VMMC. In total, 433/519 (83%) men had data available on sexual activity at six weeks post-VMMC. Median age was 27 years, 57% had a higher than secondary education, 72% were employed, and 9% were married. Overall, 122/433 (28%) men had sexual intercourse within the six weeks since VMMC, of whom 36% reported inconsistent condom use. Compared to men ≥34 years, men aged <30 years (adjusted risk ratio [aRR] = 1.71, 95% CI 0.95–3.08) and men 30–34 years had a two-fold higher likelihood of resuming sexual activity early in multivariate analyses (aRR = 2.31, 95% CI 1.26–4.25, Wald p = 0.018). Employed men were more likely to resume sexual activity early than unemployed men (aRR = 1.58, 95% CI 1.02–2.44, p = 0.039). Additional interventions are needed to encourage abstinence until complete wound healing.


2020 ◽  
Vol 29 (Sup9a) ◽  
pp. S39-S47
Author(s):  
Hideyuki Yanagi ◽  
Hiroto Terashi ◽  
Yoshimitsu Takahashi ◽  
Katsuyuki Okabe ◽  
Katsumi Tanaka ◽  
...  

Objective: To clarify the surgical indications and the appropriate perioperative management of ischial pressure ulcers (PUs). Method: A two-year prospective, nationwide registry study was carried out across 26 medical institutions in Japan. All participating institutions managed ischial PUs according to the standardisation of total management and surgical application for the refractory decubitus (STANDARDS-I) perioperative protocol. Analysis was conducted on a range of clinically or statistically important variables for the achievement of primary or secondary endpoints: complete wound healing and hospital discharge at three months, and complete wound healing at one month after surgery, respectively. Results: A total of 59 patients took part in the study. All patients underwent surgery for ischial PUs during the study period. Patients who had achieved the primary endpoint had a higer preoperative functional independence measurement (FIM score), a higher ‘G’ score in the DESIGN-R scale and were more likely to have healed by primary intention. Patients who had achieved the secondary endpoint were more likely to have spastic paralysis, preoperative physiotherapy and localised infection of the wound, among other variables. Conclusion: This survey suggests that preoperative physiotherapy increases the speed of wound healing, and good granulation of the wound bed preoperatively increases the likelihood of woundless discharge from hospital, whereas the existence of comorbidities negatively influences the likelihood of woundless discharge from hospital. The study also suggests that the existence of spastic paralysis, preoperative infection of the wound, or surgical reduction of the ischial tubercle speeds up the healing of the wound. However, the wound failed to heal significantly more often in patients with increasing white blood cell count after surgery.


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