The main method of treatment of surgery is a mechanical intervention in the pathological process, or disease state, and to develop operational methods and techniques for the treatment of these diseases. The surgeon must not only own the technique of surgical interventions, but also good to know other medical disciplines: anatomy, physiology, therapy, pharmacology.
Constantly are expanding range of surgical procedures, increasing the possibility of surgery. Widely used instruments, devices, facilitating the execution of operations: laser and plasma scalpel, ultrasonic devices, various equipment.
Types of Surgical Diseases:
- Trauma (mechanical, physical and chemical);
- Inflammatory diseases of soft tissue and internal organs;
- Tumors (benign or malignant);
- Necrosis;
- Malformations;
- Parasitic diseases that require surgical treatment.
Surgical Operations can be divided into certain Groups:
In the presence of bleeding during the procedure:
- bloodless surgery: tools (cysto-, broncho, gastroscopy, colonoscopy) and non-instrumental (reposition of dislocation hip, shoulder, lower jaw);
- bloody surgery - surgery, accompanied by a violation of the integrity of the tissue.
By the purpose, nature and scope of intervention:
- radical - are aimed at the complete elimination of the pathological process and cure the patient;
- palliative - facilitate the patient's condition, when it is impossible to completely eliminate the pathological process.
By number of stages:
- one-stage - carried out in one phase, during which are removed all causes of disease;
- two-stage - performed in the event that the danger of complications or the patient's condition make it impossible addressing the causes the disease in a single step;
- multi-stage, in which the recovery of the body or its functions are carried out in several stages.
Terms of performance:
- Emergency - are held for health reasons, when the non-compliance leads to immediate death;
- Urgent - are held an urgent when the patient's condition does not allow to specify the diagnosis and prepare it for operation;
- Planned - carried out for diseases that do not require immediate surgical intervention, after a thorough examination, diagnosis and preparation of the patient.
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Surgery - the branch of medicine that studies the diseases that are treated with surgery. 
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