Randomized clinical trial of a new cyanoacrylate flexible tissue adhesive (Adhflex) for repairing surgical wounds

The Use of Histoacryl Injections to Treat Subgaleal Cerebrospinal Fluid Collection After Cranioplasty

BACKGROUND AND OBJECTIVES

Cranioplasty is an important and basic operation in the neurosurgical field. An emergency craniectomy is performed to control malignant cerebral edema. If the patient survives, cranioplasty is performed to restore the skull defect; however, subgaleal cerebrospinal fluid collection (SCSFC) may occur. The authors aimed to identify risk factors for postoperative SCSFC and effective solutions with the subgaleal Histoacryl injection.

METHODS

From January 2020 to December 2022, 154 craniectomies were performed at our hospital to relieve significant cerebral edema after traumatic brain injury; of these, 67 patients survived and underwent cranioplasty. Ten cases of postcranioplasty SCSFC were identified, among which 6 received subgaleal Histoacryl injection.

RESULTS

Among the 10 SCSFC cases, 3 resolved with compression after cerebrospinal fluid aspiration, and 1 resolved after revision surgery and dural closure. Histoacryl injection was attempted for the other 6 patients. A single injection was sufficient for SCSFC resolution in 3 patients. One patient required 2 injections, and another required 3 injections. The remaining patient underwent epiduroperitoneal shunt surgery because of SCSFC persistence after 3 Histoacryl injections. Five of 6 patients (83.3%) showed an improvement of more than 80% after Histoacryl injection.

CONCLUSION

Subgaleal Histoacryl injection is not considered a fundamental treatment for postoperative SCSFC but can be a successful alternative treatment.

Comparison of Colorado Needle Electrocautery and Traditional Scalpel for Upper Eyelid Blepharoplasty Incision: A Randomized Controlled Trial and Systematic Review

Upper eyelid blepharoplasty is a popular aesthetic surgery. Electrocautery provides a hemostatic benefit for skin incision; however, its effect on scar cosmesis remains unclear, especially in Asian skin types. We aimed to compare the Colorado needle electrocautery pure cutting mode and the traditional scalpel to determine their efficacy, complications, and cosmetic outcomes.

Methods

A systematic review was performed to review the outcome with the conventional method (scalpel) and other methods in upper blepharoplasty procedures. Further, a prospective intraindividual randomized controlled trial was conducted to compare the efficacy of Colorado needle electrocautery and the scalpel in upper blepharoplasty. Study outcomes included scar quality at different times until 1-year postoperation, bleeding during incision, and postoperative ecchymosis.

Results

Five articles met the inclusion criteria for this systematic review. The prospective randomized controlled trial study included 30 patients; the average incisional time on the electrocautery side was significantly longer than that on the scalpel side, and the electrocautery side had less blood loss during incision than the scalpel side (2.4 versus 3.27 using average cotton bud sticks, respectively) (P < 0.001). Hypopigmented scarring occurred more frequently on the scalpel side; however, the difference was not statistically significant.

Conclusions

Colorado needle electrocautery pure cutting mode can be an alternative to traditional scalpel for upper eyelid blepharoplasty skin incision because of long-term scar quality. Electrocautery use has hemostatic benefits, leading to a decrease in bleeding that can obscure the incision site. However, the incision time on the electrocautery side was significantly longer than the scalpel side, which may be owing to an adaptation of surgical technique.

A randomised clinical trial to compare octyl cyanoacrylate with absorbable monofilament sutures for the closure of laparoscopic cholecystectomy port incisions

Tissue adhesives have gained increasing use as a possible method of wound closure. We compared the use of 2-octyl cyanoacrylate (OCA) or subcuticular suture in incisions sutures for the closure of laparoscopic cholecystectomy port incisions. A prospective randomised controlled trial was performed. Patients were randomised to have closure of laparoscopic port sites using either OCA or sutures. Patients were reviewed at 24 hours and returned for follow-up 1 week and 1 month after postoperatively. At these times, different wound characteristics were documented: Two tools were used to measure the cosmetic result using Hollander wound evaluation scale (HWES) and the patient and observer scar assessment scale (POSAS). A total of 70 patients, 35 in each group were enrolled. The wounds were closed significantly faster in the OCA group (mean 229.16 [±43.7] seconds versus 258.82 [±51.7] seconds, P = .01). Statistically significant difference in favour of using OCA was found for dehiscence (17.1% versus none in the suture group, P = .025) after 1 week. However, no difference was found for wound dehiscence after 1 month. OCA and suture groups did not differ significantly on patient satisfaction. There were no differences in the percentage of wounds achieving optimal scores on the HWES (suture 85.7% versus OCA 74.2%, P = .169). Nerveless, wound evolution was judged to be significantly better in the OCA group using POSAS. Patients' median POSAS was 9.45 (6-11) and 11.43 (10-13) in the OCA and suture groups, respectively (P = .005), and surgeon's median POSAS was 9.42 (6-11) and 11.48 (10-13) in the OCA and suture groups, respectively (P = .006). N-butyl-cyanoacrylate tissue adhesive is an acceptable technique for the closure of laparoscopic wounds with less operative time, and cosmetic results are comparable to suturing.

The effect of biological sealants and adhesive treatments on matrix metalloproteinase expression during renal injury healing

Background

Renal injuries are relatively common in cases of abdominal trauma. Adhesives and sealants can be used to repair and preserve damaged organs. Using a rat model, this study explores the activity of different matrix metalloproteinases (MMP) during the healing of renal injuries treated by two biological adhesives (TachoSil and GelitaSpon) and a new synthetic elastic cyanoacrylate (Adhflex).

Methods

Renal traumatic injuries were experimentally induced in 90 male Wistar rats by a Stiefel Biopsy Punch in the anterior aspect of the left kidney. Animals were divided into five groups: 1, sham non-injured (n = 3); 2, non-treated standard punch injury (n = 6); 3, punch injury treated with TachoSil (n = 27); 4, punch injury treated with GelitaSpon (n = 27); and, 5, punch injury treated with Adhflex (n = 27). Wound healing was evaluated 2, 6, and 18 days after injury by determining the expression of MMPs, and the histopathological evolution of lesions.

Findings

Histologically, the wound size at 6 days post-injury was larger in Adhflex-treated samples than in the other treatments, but the scarring tissue was similar at 18 days post-injury. Only the MMPs subtypes 1, 2, 8, 9, and 13 were sufficiently expressed to be quantifiable. Both time since injury and treatment type had a significant influence on MMPs expression. Two days after injury, the expression of MMP8 and MMP9 was predominant. MMP2 expression was greater 6 days after injury. The Adhflex-treated group had a significantly higher MMPs expression than the other treatment groups at all healing stages.

Conclusions

All three sealant treatments induced almost similar expression of MMPs than untreated animals indicating a physiological healing process. Given that all renal trauma injuries must be considered emergencies, both biological and synthetic adhesives, such as Adhflex, should be considered as a treatment options.