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PubMed2004

Comparison of poly-N-acetyl glucosamine with commercially available topical hemostats for achieving hemostasis in coagulopathic models of splenic hemorrhage.

BACKGROUND: The hemostatic quality of the poly-N-acetyl glucosamine (p-GlcNAc) patch was compared with a fibrin sealant, fibrin bandage, and cellulose patch. METHODS: A 2 x 2-cm capsular strip to a depth of 3 mm of the swine spleen was used as a source of bleeding. Splenic lacerations were created in hemophilia B dogs and treated with p-GlcNAc and Surgicel. Wounds were created in rabbits and treated with p-GlcNAc at 37degreesC and after keeping body core temperature at 29degreesC. RESULTS: Poly-N-acetyl glucosamine was able to achieve hemostasis with greater efficacy than either of the fibrin-based bandages. In the hemophilia B dog study, p-GlcNAc significantly outperformed Surgicel, with p-GlcNAc achieving hemostasis in 75% of the treated wounds compared with 17% for the cellulose patch. The hypothermia study demonstrated that p-GlcNAc is equally effective at 29degreesC and at 37degreesC. CONCLUSION: Poly-N-acetyl glucosamine was effective at controlling bleeding in animals with experimentally induced or genetic coagulopathic disorders.

Acetylglucosamine↗
PubMed1992

Role of sulphydryl-containing agents in the management of venous (varicose) ulceration. A new approach.

This randomized double-blind controlled study examined whether sulphydryl-containing agents influence the healing of venous ulceration occurring for the first time on the medial side of the leg. Graduated compression bandaging, which exerted a mean ankle pressure of 40.6 +/- 0.4 mmHg, and a mean below-knee pressure of 17.1 +/- 0.2 mmHg, healed 70% of ulcers within 12 weeks (n = 46). The addition of the sulphydryl-containing agents DL-cysteine (n = 46) or DL-methionine-methyl sulphonium chloride (n = 45) to the compression bandaging (daily application of the powder for 7 days, followed by once weekly applications until the end of the study 3 months later) significantly (P < 0.01) stimulated healing of venous ulceration relative to control values when studied 4, 8 and 12 weeks after commencing treatment. After 3 months of treatment, both sulphydryl-containing compounds healed 93% of the ulcers. The results show that sulphydryls stimulate healing of venous ulceration.

Adult↗
PubMed1984

A multivariate analysis of factors affecting wound-healing time.

For post-Mohs surgical defects of the head and neck, the width of the defect is the best predictor of the length of that time it will take the wound to heal. This conclusion is based on a multivariate analysis, testing the effect of the following factors on wound-healing time: (1) age, (2) sex, (3) sound location, (4) wound width, (5) wound length, and (6) wound length X wound width. After accounting for wound width, none of the other factors significantly influenced the rate of wound healing. The 64 wounds evaluated were dressed daily with one of five bandages. When compared with the controls, and after correcting for wound width, each of the test bandages shortened wound-healing time. Among the treatment groups, no significant differences were found in the cultures or in the appearance of the wounds.

Aged↗
PubMedDate not supplied

Hemodynamic function during neurectomy in halothane-anesthetized horses with or without constant dose detomidine infusion.

Nine horses were premediated with acepromazine, and anesthesia was induced with guaifenesin and thiamylal. Anesthesia was maintained in four horses with halothane in oxygen, and in five horses with halothane in oxygen plus a constant dose infusion of detomidine. Both maintenance regimens produced a MAC equivalent of 1.4 at the ambient barometric pressure. Hemodynamic and respiratory measurements were made after the horses were anesthetized, during surgical manipulations involving skin or tissues other than nerves, during manipulation and transection of digital nerves, and after surgery while the limbs were being bandaged. Heart rate was significantly higher in horses anesthetized with halothane only than in horses that also received detomidine; there were no other differences in hemodynamic function or recovery characteristics. Respiratory rate was significantly higher than baseline during soft tissue and nerve manipulations; arterial blood pressure was significantly higher after surgery began and highest during neurectomy; cardiac output and cardiac index were significantly decreased during surgery; systemic vascular resistance was significantly increased during neurectomy and bandaging and highest during neurectomy. The data suggest that the increase in blood pressure often associated with surgical stimulation is caused by increased vascular resistance and may be accompanied by a decrease in cardiac output.

Analgesics↗
PubMedDate not supplied

Hemodynamic responses of horses to anesthesia and surgery, before and after administration of a low dose of endotoxin.

Seven horses, which were part of an investigation of the effect of endotoxin administration on vascular reactivity, were anesthetized on two separate occasions for surgical excision of 4-cm sections of palmar digital artery and vein. On the first occasion, the horses were given an infusion of 1 L 0.9% NaCl solution intravenously (i.v.) just before induction of anesthesia (control); on the second occasion, the horses received an infusion of 1 L 0.9% NaCl containing Escherichia coli endotoxin, 0.1 microgram/kg (endotoxin). On both occasions, anesthesia was induced with xylazine, guaifenesin, and ketamine, and maintained with halothane in oxygen. Hemodynamic measurements were made with the horses under anesthesia immediately before beginning surgery (period 1), during skin incision (period 2), during dissection and excision of the vessels (period 3), during skin suturing (period 4), and after completion of surgery during bandaging (period 5). Hemoglobin concentration and mixed venous oxygen content were greater at all periods in horses that received endotoxin. Otherwise, there were no significant differences in hemodynamic parameters between control horses and horses administered endotoxin before beginning surgery (period 1). During surgery and bandaging, horses administered endotoxin had significantly higher heart rate (periods 3, 4, and 5), cardiac index (periods 3, 4, and 5), and oxygen delivery (periods 2, 3, 4, and 5) than did control horses, and mean arterial blood pressure (period 2) and systemic vascular resistance (periods 2, 3, 4, and 5) were less than in control horses. Compared with period 1, surgical stimulation in control horses was associated with increased mean arterial blood pressure and systemic vascular resistance (periods 2, 3, 4, and 5), but cardiac index and oxygen delivery were decreased (periods 3, 4, and 5).(ABSTRACT TRUNCATED AT 250 WORDS)

Anesthesia, General↗
PubMed2006

Factors affecting treatment outcomes following complicated crown fractures managed in primary and secondary care.

The aims of this retrospective observational study were to determine the factors which affect treatment provision and the Median Survival Time (MST) for maintenance of tooth vitality following complicated crown fracture. The survey was carried out for patients treated at Newcastle Dental Hospital (NDH) according to departmental guidelines over a 2-year period following the introduction of a new protocol for management of these types of injuries. Seventy-three cases of complicated crown fracture were identified in 69 children with a mean age of 10.3 years (SD = 2.5 years). Seventy-one percent of the fractures occurred in males (M:F ratio was 2.5:1). Fifty-one percent of the complicated crown fractures were in immature teeth. Of the 73 traumatised teeth, 45% presented initially in general dental practice (GDP), 37% at the dental hospital and 8% at local accident and emergency departments with the remaining 10% seen at other or unrecorded locations. Of the 41 fractures, which presented initially at a location other than the dental hospital, 38% were referred to the dental hospital without the provision of an emergency pulp bandage. The overall definitive treatments provided for the 37 open apex teeth included pulp cap (19%), partial pulpotomy (32%), cervical pulpotomy (8%) and pulpectomy (35%), while for the 36 closed apex teeth it was pulp cap (28%), pulpotomy (11%), and pulpectomy (61%). Of the 30 teeth, which underwent vital pulp therapy (18 open and 12 closed apex), the MST for the 15 teeth treated with pulp caps was 1460 days (95% CI: 1067, 1853) while for the 15 teeth treated with pulpotomies it was 1375 days (95% CI: 964, 1786). There was no statistically significant difference in the MST between teeth treated with pulp caps and pulpotomies. In conclusion, the proportion of patients referred to secondary care with complicated crown fractures without provision of a pulp bandage is of some concern. More conservative treatment of closed apex teeth sustaining complicated crown fractures, utilizing vital pulp therapy techniques would appear to be appropriate.

Adolescent↗
PubMed2004

Topical radiant heating in wound healing: an experimental study in a donor site wound model*.

The importance of temperature in the wound-healing process is rapidly being recognised as a novel way in which to manipulate the wound-healing environment. In this study, we aimed to investigate the direct effect of topical radiant heating (TRH), using a novel bandaging system (Warm-Up, Arizant Health care Inc., Eden Prairie MN, USA; Augustine Medical, USA), on wound healing at a physiological and cellular level. Experimental bandages were positioned over split-thickness skin graft donor site wounds of 12 patients undergoing graft harvesting from the anterior thigh. The experimental group (n=6) underwent intermittent heating for 5 hours (three 1-hour heating cycles at 38 degrees C, separated by two 1-hour rest periods), whilst the control group (n=6) received no radiant heating. Physiological blood-flow recordings both in the control group and the topical radiant heat cohort were undertaken using Laser Doppler Imaging (LDI). Skin biopsies were obtained at identical time points, and immunohistochemical analysis was undertaken using antibodies against neutrophils (NP57), lymphocytes (CD3) and macrophages (CD68). We found that TRH significantly increased local dermal blood flow (P<0.001) by up to 100% in both injured and intact skin. Furthermore, this increase in flow was associated with a significant (P<0.05) increase in CD3 immunoreactivity on day 1 postoperatively. This study demonstrates that TRH increases local blood flow and lymphocyte (CD3) extravasation, and we postulate that these changes may enhance local innate immunity within the healing wound environment.

Biopsy, Needle↗
PubMed2006

Traumatic triceps tendon avulsion in a cat.

Traumatic avulsion of the triceps tendon was diagnosed in a 15-month-old, male, neutered European shorthair cat. Diagnosis was established clinically by palpation of a transverse groove proximal to the olecranon and by radiography. The avulsed end of the tendon was surgically reapposed using a modified three-loop pulley suture and horizontal mattress sutures. Postoperatively, elbow flexion was limited for three weeks with the aid of a spica splint and by exercise restriction for six weeks. The cat showed no lameness after bandage removal up to the time of writing (seven months). Although rare, triceps tendon injuries can occur after a blunt trauma and should be included in the differential diagnosis of foreleg lameness in the cat. The modified three-loop pulley suture in combination with subsequent immobilisation of the limb with a splinted bandage resulted in a successful outcome in this cat with a triceps tendon avulsion.

Animals↗
PubMed1987

Use of soft contact lenses in an eye casualty department for the primary treatment of traumatic corneal abrasions.

We have assessed the role of bandage contact lenses in the primary treatment of traumatic corneal abrasions. Patients treated with bandage lenses healed more quickly (0.05 greater than p greater than 0.02) and with less discomfort (0.05 greater than p greater than 0.02) than those treated traditionally, with the added advantage of maintaining vision during treatment. Resterilisation of contact lenses reduces the cost and makes the treatment economically viable. Large diameter lenses were fitted satisfactorily without the use of keratometry.

Adult↗
PubMed1984

Ruptured fibular ankle ligament: plaster or Pliton brace?

A prospective randomised study was performed in order to compare plaster cast with Pliton-80 cast brace with a mobile plastic shoe insert in the treatment of ruptured fibular ankle ligaments. The two treatment groups consisted of 65 patients in each and all were participating in the follow-up sixth months after the accident. There were no statistically significant differences in the overall results between the two treatment groups. Because 1) the mobile Pliton-80 bandage subjectively is more acceptable to the patients and -2) the disability time in the Pliton-80 group was considerably shorter than in the plaster group--it was concluded that the mobile Pliton-80 bandage can be recommended as the treatment of ruptures of the fibular ankle ligaments.

Adolescent↗
PubMed1990

Oxpentifylline treatment of venous ulcers of the leg.

OBJECTIVE: To determine the effect of oxpentifylline on the healing of venous ulcers of the leg. DESIGN: Double blind, randomised, prospective, placebo controlled, parallel group study. SETTING: Four outpatient clinics treating leg ulcers in England and the Republic of Ireland. PATIENTS: 80 Consecutive patients with clinical evidence of venous ulceration of the leg in whom appreciable arterial disease was excluded by the ratio of ankle to brachial systolic pressure being greater than 0.8. INTERVENTIONS: All patients received either oxpentifylline 400 mg three times a day by mouth or a matching placebo for six months (or until their reference ulcer healed if this occurred sooner) in addition to a locally standardised method of compression bandaging. MAIN OUTCOME MEASURES: The primary end point was complete healing of the reference ulcer within six months. The secondary end point was the change in the area of the ulcer over the six month observation period. RESULTS: Complete healing of the reference ulcer occurred in 23 of the 38 patients treated with oxpentifylline and in 12 of the 42 patients treated with a placebo. Life table analysis showed that the proportion of ulcers healed at six months was 64% in the group treated with oxpentifylline compared with 34% in the group treated with a placebo (log rank test chi 2 = 4.78, p = 0.03), which was significant (odds ratio = 1.81, 95% confidence interval 1.20 to 2.71). CONCLUSION: Oxpentifylline used in conjunction with compression bandaging improves the healing of venous ulcers of the leg.

Double-Blind Method↗
PubMed1999

Randomised, double blind placebo controlled trial of pentoxifylline in the treatment of venous leg ulcers.

OBJECTIVE: To determine whether pentoxifylline 400 mg (Trental 400) taken orally three times daily, in addition to ambulatory compression bandages and dressings, improves the healing rate of pure venous ulcers. DESIGN: Randomised, double blind placebo controlled trial, parallel group study of factorial design, permitting the simultaneous evaluation of alternative pharmaceutical, bandaging, and dressings materials. SETTING: Leg ulcer clinics of a teaching and a district general hospital in southern Scotland. PARTICIPANTS: 200 patients with confirmed venous ulcers and in whom other major causal factors were excluded. INTERVENTIONS: Pentoxifylline 400 mg three times daily or placebo. MAIN OUTCOME MEASURE: Complete healing (full epithelialisation) of all ulcers on the trial leg. RESULTS: Complete healing occurred in 65 of the 101 (64%) patients receiving pentoxifylline and 52 of the 99 (53%) patients receiving placebo. CONCLUSIONS: The difference in the healing rates between patients taking pentoxifylline and those taking placebo did not reach statistical significance.

Adult↗
PubMed1999

Two hour ambulation after coronary angioplasty and stenting with 6 F guiding catheters and low dose heparin.

OBJECTIVE: To evaluate the feasibility and safety of ambulation of patients two hours after elective coronary angioplasty or stenting, or both. METHODS: Coronary angioplasty and stenting were performed using 6 F guiding catheters by the femoral approach and a standard dose of heparin 5000 IU. There were no angiographic exclusion criteria except for planned atherectomy. Patients given oral anticoagulants or heparin were not eligible. All patients were given aspirin. Patients who underwent stent implantation also received ticlopidine 250 mg daily. The arterial sheath was removed immediately after the procedure. Haemostasis was achieved by manual compression and maintained with an inguinal compression bandage. Early ambulation was attempted after two hours of supine bed rest following removal of the bandage. MAIN OUTCOME MEASURES: The incidence of bleeding at or during ambulation requiring compression and additional bed rest, and puncture site complications documented 48 hours after the procedure. RESULTS: 300 of 359 consecutive eligible patients were included for two hour ambulation. Stent implantation was performed in 32% of the procedures. The mean (SD) time to haemostasis was 9.6 (3.2) minutes. Bleeding at ambulation occurred in five patients (1.7%), and nine patients (3.0%) reached the secondary end point of haematoma > 5 x 5 cm at 48 hour follow up. All were treated conservatively without further sequelae. There was no late bleeding or vascular complications. CONCLUSION: Ambulation two hours after elective balloon angioplasty or stent implantation with 6 F guiding catheters by the femoral route and low dose heparin is feasible and safe, with a low incidence of puncture site complications. This early ambulation protocol facilitates a short hospital stay.

Aged↗
PubMed1984

Clinical comparison of elastic supports for venous diseases of the lower limb.

Compression garments for the lower limb were tested in two groups--general support garments and anti-embolism supports. A total of 98 patients was examined. The method used was by the interposition of partly fluid-filled pressure sensors between garment and skin. A combination of roller bandage with shaped tubigrip (SBB--Seton) and Sigvaris stockings afforded effective pressure in the general support group but only the roller bandage plus pressure garment (Seton) did so in the anti-embolism group, both in the acute and prolonged studies.

Clothing↗
PubMed2001

Fenestration of the abaxial hoof wall and implantation of gentamicin-impregnated collagen sponges for the treatment of septic arthritis of the distal interphalangeal joint in cattle.

A novel surgical approach to the distal interphalangeal joint of cattle, through the abaxial hoof wall, for the treatment of septic arthritis is described. In seven cattle a rectangular piece of horn (15 x 40 mm) was excised from the abaxial hoof wall and the joint was lavaged with Ringer's solution. Infected and/or necrotic tissue was removed from the joint and gentamicin-impregnated collagen sponges were introduced. The piece of horn was reattached, a rubber block was glued to the contralateral claw, and a bandage applied. Aftercare consisted of changes of bandage, systemic administration of antimicrobial drugs and box rest. At follow-up, six of the cattle were sound but one cow which had been slaughtered five months after surgery had remained slightly lame.

Animals↗
PubMed1999

Nicotine-modified postinfarction left ventricular remodeling.

Cigarette smoking has been noted to impair wound healing in tissues such as skin, bone, and gut. This study was designed to examine whether nicotine adversely affects postinfarction cardiac wound healing and remodeling in an experimental model of myocardial infarction. For this purpose, two groups of rats were studied. The control group received a simple bandage, and the nicotine group had a section (1.75 mg/day) of a nicotine patch attached on their backs. After a 7-day treatment period, an anterior wall infarction was induced. A bandage-free 7-day healing period followed, after which hearts were isolated for mechanical tests. Nicotine-treated rats developed significantly enlarged left ventricles with thin, infarcted walls and a rightward shift in the passive pressure-volume relationship. Pressure-strain analysis also indicated possible changes in the material properties of the wound for nicotine-treated rats. In conclusion, nicotine has significant adverse effects on postinfarction healing and left ventricular remodeling. These observations have important clinical implications because of the enhanced risk for development of heart failure.

Animals↗
PubMed2004

Comparative study of three surgical treatments for two forms of the clinical presentation of bovine pododermatitis.

In this study, 1013 animals showing signs of clinical pododermatitis were examined and divided into five unevenly numbered groups. Affected animals in Groups I and II showed only signs of vegetative interdigital pododermatitis. The lesions were surgically removed and either protected with bandages (in Group I) or cauterized with incandescent iron (Group II). The animals in Groups III, IV, and V, showed signs of necrotic pododermatitis. These were treated with different protocols after the necrotic tissue was surgically removed: in Group III, the lesion was cauterized; in Group IV, the wound was protected with bandages; and in Group V, both the second and the third phalanges were amputated. There was a statistically significant relapse difference between Group III and Group V, as well as a difference among Group IV and Group V animals, and there were fewer relapses among the latter. The treatment used in Groups II and III proved to be efficient and inexpensive. Amputation of the phalanges was the treatment that resulted in fewer relapses among all protocols, despite its mutilating effect. The association of a local and parenteral treatment with an antibiotic agent, as well as the use of foot baths, contributed greatly to a fast recovery.

Amputation, Surgical↗
PubMed1979

On splitting plasters. A useful analogy.

An inner tube was inflated and then surrounded with plaster wool and plaster-of-Paris bandages. The plaster and the wool were next progressively divided. There was no significant reduction of the pressure inside the tube until both the plaster and the wool had been divided and separated from the inner tube along the entire circumference. These findings demonstrated that wool and plaster applied to limbs likely to swell should be split right down to skin and widely separated immediately after their application. A plaster slab is safer still, but the wool must be cut before the crepe bandage is applied.

Animals↗