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At least 523 records · Page 29Linked to original sources
PubMed1985

Antimicrobial cream susceptibility testing.

Utilizing a recently described rapid needle extrusion method for determining the sensitivities of burn wound isolates, we have compiled data on the resistance patterns of over 250 isolates from our burn unit. Major isolate groups were Staphylococcus aureus, Pseudomonas aeruginosa, various Enterobacteriaceae and Enterococci. Excellent correlation was exhibited between the inhibitory zone sizes and the minimal inhibitory concentration for 120 organisms tested. Utilizing the needle extrusion sensitivities to facilitate the selection of the burn creams, a significant reduction in the microbiologic flora of the burn wound was noted. The utilization of this technique in the selection of burn creams deserves controlled trials to assess whether changes in topical therapy might alter clinical outcome.

Administration, Topical↗
PubMed2004

Thermochemical properties and non-isothermal decomposition reaction kinetics of 3,4-dinitrofurazanfuroxan (DNTF).

The constant-volume combustion energy, DeltacU (DNTF, s, 298.15K) and kinetic behavior of the exothermic decomposition reaction of the title compound (DNTF) are determined by a precise rotating bomb calorimeter and DSC, respectively. Its standard enthalpy of combustion, DeltacHmtheta (DNTF, s, 298.15K), standard enthalpy of formation, DeltacHmtheta (DNTF, s, 298.15K) and kinetic parameters of the major exothermic decomposition reaction in a temperature-programmed mode [the apparent activation energy (Ea) and pre-exponential factor (A)] are calculated. The values of DeltacU (DNTF, s, 298.15K), DeltacHmtheta (DNTF, s, 298.15K), and DeltacHmtheta (DNTF, s, 298.15K) of DNTF are -9733.96 +/- 8.59 Jg(-1), -3018.29 +/- 2.68 kJ mol(-1), and 657.23 +/- 2.70 kJ mol(-1), respectively. The kinetic model function in integral form and the value of E(a) and A of the major exothermic decomposition reaction of DNTF are 1-(1-alpha)1/3, 177.03 kJ mol(-1) and 10(13.68)s(-1), respectively. The critical temperature of thermal explosion of DNTF is 240.6 degrees C.

Explosions↗
PubMed1975

The nitrofurans as sperm-immobilizing agents, their tissue toxicity, and their clinical application in vasectomy.

Nitrofurantoin sodium and nitorfurazone, in certain critical concentrations, have the ability to immobilize spermatozoa. In this study, this effect was consisitent with both 5:1, and 10:1 dilutions. Histologic examination of the effects of these drugs as intraoperative vas irrigants revealed no apparent tissue toxicity in the guinea pig. Clinically, we found intraoperative vas irrigation with both of these nontoxic drugs to be of value in attaining azoospermia immediately postvasectomy. Therefore, they appear to be useful supplements to vasectomy.

Adult↗
PubMed1980

Infections following burn injury.

Those factors that have contributed most to the control of burn wound sepsis in the burn patient since 1930 have been the advent of penicillin, the institution of burn center care, the availability of aminoglycosides and antifungal agents, the advent of topical therapy, the aggressive treatment of the burn wound by excisional therapy, a better understanding of respiratory therapy, the support of immune competence, and the recognition of the importance of nutritional support (Fig. 1). At the Shriners Cincinnati Unit, the extent of burn associated with a survival rate of 50 per cent has risen from 70 per cent in 1970 to 80 per cent in 1978. The better chance of survival for burn patients during this period can be directly related to a progressive improvement in the local and systemic measures available for the control of infection.

Burns↗
PubMed1998

Early nonsurgical removal of chemically injured tissue enhances wound healing in partial thickness burns.

Chemical burns are slow healing injuries and their depth is difficult to assess. Tissue destruction continues as long as active material is present in the wound site. The routine therapy for treatment of full thickness chemical burns is early excision; it shortens hospitalization and reduces morbidity. However, presently there is no specific treatment for chemical burns of partial thickness. This study examined several treatment modalities for partial thickness chemical burns: surgical excision; laser ablation and chemical debridement with Debridase or trypsin-linked to gauze. Chemical burns were inflicted with nitrogen mustard (NM -- a nitrogen analog to sulfur mustard -- mustard gas) in an experimental guinea pig model. Debridase was most effective and reduced significantly lesion area of burns after 'humid' exposure to 2 mg NM. The healing action of Debridase was also evident in the significantly higher histopathological score of biopsies from local tissue obtained on day 5. Laser ablation was most effective and accelerated healing of burn lesions after 'dry' exposure to 5 mg NM. The histopathology score of the laser treated burns was higher on day 4 compared to untreated controls. It is concluded that for partial thickness chemical burns early nonsurgical removal of the damaged tissues accelerates wound healing.

Administration, Topical↗