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At least 19 recordsLinked to original sources
PubMed1985

Enbucrilate as cartilage adhesive in augmentation rhinoplasty.

Enbucrilate (Histoacryl) as a cartilage adhesive in augmentation rhinoplasty was used in 39 cases. The unique properties of this tissue adhesive enhances the ability to augment the nose during cosmetic and reconstructive rhinoplasty. Enbucrilate interacts superbly well with local tissues, causing no systemic or local untoward effects. Its main attribute stems from its ability to bond cartilage instantaneously and with great reliability, which allows for intricate fabrication of cartilage implant components. Five subcategories of dorsal, tip, and columella augmentation are presented with their technical details outlined. The aesthetic and functional results in 39 cases were deemed excellent, safe, and effective.

Enbucrilate↗
PubMed1998

A novel approach to flow quantification in brain arteriovenous malformations prior to enbucrilate embolization: use of insoluble contrast (Ethiodol droplet) angiography.

OBJECT: Successful therapeutic embolization of arteriovenous malformations (AVMs) of the brain with liquid polymers (glues) requires precise knowledge of highly variable AVM structure and flow velocities and transit times of blood through the AVM nidus. The goal of this study was to improve AVM flow measurement and visualization by the substitution of the insoluble Ethiodol (ethiodized oil) contrast agent for the soluble contrast media normally used in angiographic studies. METHODS: Before enbucrilate embolization of 24 AVM feeding pedicles in 13 patients, standard contrast medium was superselectively injected into each target pedicle, followed by infusion of 20 microl of Ethiodol microdroplets. Transport of contrast material was assessed using high-speed biplane pulsed digital subtraction angiography (DSA) operating at 15 frames per second. The mean blood flow transit times through AVMs after administration of Ethiodol were found to be approximately half as long as in those measured after injection of soluble contrast materials (0.22 +/- 0.10 seconds compared with 0.46 +/- 0.19 seconds [mean +/- standard deviation]; p < 0.0001). The discrete Ethiodol microdroplets travel with the core flow, more closely approximating the dynamic behavior of enbucrilate, allowing the AVM structure to be traced with high spatial and temporal resolution. There were no inadvertent vessel occlusions or pulmonary complications related to the use of Ethiodol for DSA. CONCLUSIONS: Because of diffusion and convection, forces that decrease concentration, visualization of the contrast front is reduced, often resulting in deceptively long transit times when soluble contrast materials are used. Overestimation may prove dangerous when planning embolizations. The Ethiodol droplet DSA method provides accurate transit time measurements and precise, detailed, and dynamic AVM visualization. Further development of this method will improve the safety and precision of AVM treatments.

Adolescent↗
PubMed1980

The effects of an adhesive in the middle ear.

This study investigated the effects of enbucrilate (Histoacryl) on the middle ear. Small amounts of the adhesive were used in 81 middle-ear operations performed on 50 rabbits. Light microscopic investigation of these ears 1, 2, and 3 months after surgery showed bone necrosis and a granulation tissue reaction surrounded by foreign-body giant cells. Inner-ear changes were observed in a third of the cases. Therefore, enbucrilate should only be used with extreme care and in minute quantities and never near the labyrinthine capsule.

Animals↗
PubMed1983

Antibacterial effect of cyanoacrylate glue.

Enbucrilate (butyl-2-cyanoacrylate; Histoacryl [West Germany], no comparable US product) is a tissue adhesive used in the management of corneal perforations that may have a therapeutic value in suppressing selective pathogens isolated, from corneal infections. In three patients with confirmed corneal infections, varying degrees of inhibition were observed. Bacteriostatic activity was most pronounced against gram-positive microorganisms, and no activity was observed against gram-negative organisms. It appears that this chemical adhesive provided an ancillary means of promoting healing of corneal perforations.

Aged↗
PubMed1991

Vein of Galen malformation. Endovascular management of 43 cases.

Since 1984, 43 patients with true vein of Galen aneurysmal malformations have been referred to us and managed according to our patient selection, technique, and follow-up guidelines. Thirty-four were embolized transarterially with bucrilate (isobutyl cyanoacrylate) or enbucrilate (N-butyl cyanoacrylate) embolization. No cutdown or hypotension during or after the embolization was used and no balloon catheter was employed. Forty-seven percent of the children had a completely occluded lesion which was confirmed when the child was at least 6 months of age at the follow-up angiographic examination; 52.9% were found to be completely normal or only to have mild cardiac failure that could be treated medically or moderate macrocephaly without neurological symptoms or mental retardation. In the embolized group 5.8% died as a result of the wrong treatment (1 case) or poor timing of embolization 3 days after ventricular shunting (1 case). The overall mortality (embolized and non-embolized groups) in the neonatal children was 27.7% with a total of 18.6% for all ages. Complete morphological exclusion of the arteriovenous malformation was accomplished in 41.9%; 74.4% of all children referred are now clinically normal or present moderate mental retardation which is diminishing. There was 3% neurological morbidity in the embolized group (only following the venous approach) in 78 sessions and more than 100 arteries embolized. These results compare favorably with surgical or other techniques of arterial embolization (balloon or particles), as well as transvenous (transtorcular or transfemoral) embolization, where the morbidity and mortality are significantly higher and the late clinical evaluation is seldom satisfactory.(ABSTRACT TRUNCATED AT 250 WORDS)

Adolescent↗
PubMedDate not supplied

Treatment of symptomatic pelvic varices by ovarian vein embolization.

PURPOSE: Pelvic congestion syndrome is a common cause of chronic pelvic pain in women and its association with venous congestion has been described in the literature. We evaluated the potential benefits of lumbo-ovarian vein embolization in the treatment of lower abdominal pain in patients presenting with pelvic varicosities. METHODS: Nineteen patients were treated. There were 13 unilateral embolizations, 6 initial bilateral treatments and 5 treated recurrences (a total of 30 procedures). All embolizations were performed with either enbucrilate and/or macrocoils, and there was an average clinical and Doppler duplex follow-up of 15.4 months. RESULTS: The initial technical success rate was 96.7%. There were no immediate or long-term complications. Variable symptomatic relief was observed in 73.7% of cases with complete responses in 57.9%. All 8 patients who had partial or no pain relief complained of dyspareunia. The direct relationship between varices and chronic pelvic pain was difficult to ascertain in a significant number of clinical failures. CONCLUSION: Transcatheter embolization of lumbo-ovarian varices is a safe technique offering symptomatic relief of pelvic pain in the majority of cases. The presence of dyspareunia seemed to be a poor prognostic factor, indicating that other causes of pelvic pain may coexist with pelvic varicosities.

Adult↗
PubMedDate not supplied

Embolization of iatrogenic vascular injuries of renal transplants: immediate and follow-up results.

PURPOSE: To evaluate the outcome in seven patients in whom iatrogenic vascular complications were treated with catheter embolization. METHODS: Angiography showed an arteriovenous fistula in six of the seven patients, a pseudoaneurysm in three patients, and an arteriocaliceal fistula in three patients. Embolization was performed with GAW coils or microcoils in all cases. In three patients enbucrilate, polyvinyl alcohol, or absorbable gelatin powder was administered as an adjunct to the coils. RESULTS: Angiographic success with total occlusion of the vascular injury was achieved in five of the seven patients and clinical success was achieved in four of seven cases. In two cases, nephrectomy after embolization was necessary because of renal artery occlusion or acute hemorrhage at the renal artery anastomosis, respectively. Infarction of 30%-50% of the renal parenchyma was seen in two cases. CONCLUSION: Angiographically successful embolization is not necessarily associated with clinical success. The complication rate is high.

Adult↗
PubMed1984

Cyanoacrylate adhesive used to stop CSF leaks during orbital surgery.

Butyl-2-cyanoacrylate (Histoacryl Blue) tissue adhesive successfully sealed three cases of CSF leaks encountered during orbital surgery. The application of tissue adhesive was followed by prompt cessation of leak. We have found this tissue adhesive to be a valuable technical adjunct in the intraoperative management of this difficult problem and have not seen any general or local toxic reaction to the material.

Adult↗
PubMed1985

Use of butyl-2-cyanoacrylate in rabbit auricular cartilage.

Since the nonsuture repair of blood vessels with methyl-2-cyanoacrylate was described in 1960, the advantages of a tissue adhesive over conventional sutures became evident. A survey of 115 otolaryngology programs showed that cyanoacrylates, mainly butyl-2-cyanoacrylate (B2C), are used more extensively than indicated in the literature. Cartilage grafts are commonly used in facial plastic procedures. In a study comparing B2C with conventional suture techniques in securing rabbit auricular cartilage autografts, sutures were used in the left control ear and B2C was used in the right experimental ear. Rabbits sacrificed at two weeks to 12 months showed graft viability in all samples and no statistically significant histologic difference between the grafts secured by either method.

Animals↗
PubMed1987

Bony ossicular fixation using 2-cyano-butyl-acrylate adhesive.

We investigated the effects of 2-cyano-butyl-acrylate (Histoacryl) on the ossicles of 11 of 12 adult guinea pigs. A small amount of the adhesive, placed precisely between the incus and its bony fossa in each middle ear, fixed the ossicles. Light microscopic investigation of the ears of animals killed at 3, 6, 9, and 12 months after surgery showed a bony union of the ossicle to its surrounding niche in 11 of 12 operated-on ears. Negligible inflammatory reaction was seen in areas of the middle ear not in contact with the adhesive. These observations suggest that 2-cyano-butyl-acrylate may be used to achieve a durable bony union in ossiculoplastic surgery with minimal side effects in the middle ear.

Animals↗
PubMed1989

Histoacryl. Its use in aesthetic facial plastic surgery.

Since their discovery in 1949, cyanoacrylates have evoked interest as being a possible ideal "tissue glue." Several different forms of these compounds have been developed in order to try to reduce or eliminate tissue toxicity. Butyl-2-cyanoacrylate (Histoacryl) appears to be the closest ideal material as it induces low tissue reactivity and toxicity. It has been used extensively for middle ear surgery with little or no adverse effects. A historical review of tissue adhesives and a discussion of technical considerations is outlined. A clinical trial of 100 patients treated with Histoacryl on various surgical wounds revealed no significant adverse effects with wound healing, graft rejection, or infection over a six-month period. Histoacryl appears to offer many advantages and few disadvantages over conventional suture techniques.

Conjunctivitis↗
PubMed1990

Histotoxicity of cyanoacrylate tissue adhesives. A comparative study.

Cyanoacrylate derivatives have been used as surgical adhesives for many years. Shorter-chain derivatives (methyl- and ethyl-cyanoacrylate) have proved to be histotoxic. Longer-chain derivatives (butyl- and isobutyl-cyanoacrylate) are much less histotoxic. Many surgeons continue to use ethyl-2-cyanoacrylate (Krazy Glue) despite the availability of a less toxic derivative, butyl-2-cyanoacrylate (Histoacryl). In this study, the histotoxicity and bone graft-cartilage binding ability of Krazy Glue and Histoacryl were compared. Bone grafts harvested from the anterior wall of the maxillary sinus were placed in a subcutaneous pocket and glued to auricular cartilage in the rabbit. Krazy Glue and Histoacryl were used in opposite ears, harvesting specimens at 1, 2, 4, 12, 24, and 48 weeks. The Krazy Glue-treated ears developed seromas with histologic evidence of acute inflammation, tissue necrosis, and chronic foreign body giant cell reaction. The Histoacryl-treated ears showed mild acute inflammation and mild foreign body giant cell reaction. The Krazy Glue was completely degraded within 12 months, while some Histoacryl was still present at 1 year. Histoacryl had minimal histotoxic effect and good bone graft-cartilage binding ability, whereas Krazy Glue demonstrated severe histotoxicity.

Animals↗
PubMed1997

Development of sterically stabilized poly(isobutyl 2-cyanoacrylate) nanoparticles by chemical coupling of poly(ethylene glycol).

To develop rapidly biodegradable "stealth" nanoparticles, a physicochemical investigation was done on the formation of PEG-coated poly(isobutyl 2-cyanoacrylate) (PIBCA) nanoparticles. In particular, this study focused on the effect of polymerization conditions on particle size and surface properties, such as charge and hydrophilicity. Among the parameters involved, the pH of the polymerization medium was found to be a key to control the preparation of PEG-coated nanoparticles. Currently, poly(alkylcyanoacrylate) (PACA) nanoparticles are prepared in H2O at pH 2.5, the most appropriate for producing nanoparticles with a mean diameter of 200 nm and an unimodal size distribution. The presence of PEG in the polymerization medium was shown to affect particles formation: only a pH value < 1.5 led to the formation of colloidal nanoparticles, and slight pH variations dramatically affected particle size and PEG association. Polymer chemistry investigations and chemical determination of PEG strongly suggest that PEG associated with nanoparticles was well copolymerized with PIBCA.

Biocompatible Materials↗
PubMed1998

Enhanced bone regeneration and formation around implants using guided bone regeneration.

This study investigated the use of a prototype expanded polytetrafluoroethylene membrane attached to bone with butyl-cyanoacrylate, in facilitating guided bone regeneration into bone defects and around titanium screws in rabbit femora. Two experimental models were used to assess bone growth. The first model investigated two unicortical defects in each femora. The second was bone growth in a 500-micron engineered space around one transcortical titanium screw. In the first model there was a significant increase in bone formation at 1 and 2 months in the membrane groups (p < 0.01) as compared to the controls. In the second model the percentage of bone in contact with the implant was significant at 1 and 2 months in the defects covered with membrane compared to the uncovered defects. The uncovered defects had fibrous tissue adherent to the implant continuous with the overlying soft tissue. Our study demonstrated three points: this membrane can be used to increase bone regeneration into defects, this technique allows bone to grow directly around an implant, and butyl-cyanoacrylate can be used in deep soft tissue and bone applications without any apparent deleterious effects.

Animals↗