UA129143U - METHOD OF TREATMENT OF purulent wounds - Google Patents

Abstract

A method of treating purulent wounds involves performing photodynamic therapy by treating the wound with a photosensitizer and irradiating it with radiation of an optical range of the appropriate type of photochromium. Additionally, phototherapy sessions are conducted before and after photodynamic therapy.

Description

A useful model belongs to surgery and can be used to treat common chronic wounds, including in patients with diabetes.

A known method of treating purulent wounds according to Kuzyn M.I., Kostyuchenko B.M. Wound and wound infection: Guide for doctors. - Ed. the second, processing. and additional - M.: Medicine, 1990. - P. 234). It includes the use of various water-soluble ointments for local treatment in the first and second phases of the wound process, and in the third phase - fat-based ointments.

The method allows to reduce the level of bacterial contamination in the wound, but it is not effective enough, since in the process of its implementation there is a need to use staged nephrectomies. In addition, wound treatment takes from 4 to 6 months (depending on the area of the wounds).

The closest to a useful model is the method described in the article by P.Y. Tolstkh, V.A.

Derbenev, I.Yu. Kuleshov, others. "Laser photodynamic therapy of purulent wounds with a chlorine series photosensitizer" (see "Surgery. Journal named after N.I. Pirogov". - 2010.- 12.- p. 17). It involves treating the wound with a photochrome (photosensitizer) followed by irradiation of the wound with radiation of the optical range using a laser with a wavelength that corresponds to the sensitivity of a particular photochrome. As a photochrome, a photosensitizer of the chlorine series was chosen.

The method allows to reduce the number of necroctomies, as well as the duration of wound treatment to 1-2 months. But it is not effective enough, because it does not take into account the phase features of the wound process, that is, the effect occurs only on the first phase of the wound process.

The basis of a useful model is the task of increasing the efficiency of the method.

The task is solved by the fact that in the method of treating purulent wounds, which includes conducting photodynamic therapy by treating the wound with a photosensitizer and irradiating it with radiation of the optical range of the appropriate type of photochrome, according to a useful model, phototherapy sessions are additionally performed before and after photodynamic therapy.

It is advisable to irradiate the wound with radiation with a wavelength of A 550-520 nm before photodynamic therapy, and with red light (A 660-630 nm) after photodynamic therapy.

Irradiation of the wound before carrying out photodynamic therapy with radiation of the optical range with a wavelength of A 550-520 nm allows to increase the intensity of the processes

From phagocytosis in the wound, and irradiation of the wound with red light (A 660-630 nm) after photodynamic therapy allows to accelerate the processes of maturation of granulation tissue in the wound and its epithelization.

Radiation of the optical range also has bactericidal, anti-inflammatory and immunomodulating properties.

The applicant is not aware of the ways in which the combination of photodynamic and phototherapy makes it possible to influence the main links of the pathological process in the wound.

The method of treatment of purulent wounds is performed as follows. In the presence of a purulent-necrotic wound, every day during dressings, the wound surface is irradiated with radiation of the optical range with a wavelength of A 550-520 nm (corresponding to green light) for 3-5 minutes, after which a bandage is applied to the wound . After performing the phototherapy sessions, they proceed to perform photodynamic therapy: after treating the wound with a photosensitizer, the wound is irradiated with light of the appropriate wavelength. After cleaning the wound surface from necrosis (1-2 sessions of photosensitization), the wound is irradiated with red light (Al 660-630 nm) every day during dressings for 10-15 minutes, the number of dressings is 10-12 depending from the area of wounds. Carrying out a combination of phototherapy and photodynamic therapy creates conditions for plastic wound closure.

The frequency and duration of exposure sessions are set by the authors based on their own experience.

26 patients were treated in the described way. The observation showed that the duration of cleaning and healing of wounds is equal to 1 month on average, which reduces the length of stay of patients in the hospital, as well as its costs.

Thus, performing the method according to a useful model allows you to reduce the duration of treatment by almost 2 times and thereby increase the effectiveness of treatment.

Claims (2)

USEFUL MODEL FORMULA 1. The method of treatment of purulent wounds, which includes carrying out photodynamic therapy by treating the wound with a photosensitizer and irradiating it with radiation of the optical range of the appropriate type of photochrome, which is distinguished by the fact that phototherapy sessions are additionally performed before and after photodynamic therapy. 2. The method according to claim 1, which differs in that before photodynamic therapy, the wound is irradiated with radiation with a wavelength of lm 550-520 nm, and after photodynamic therapy - with red light (7, 660-630 nm).