cryosurgery

A special instrument equipped with liquid nitrogen (about -180 ° C) is used to rapidly reduce the local temperature to destroy the diseased tissue without damage to surrounding normal tissue. Treatment of diseases: peritoneal tumors Indication Mainly used in a variety of solid tumors throughout the body. Including liver cancer, lung cancer, prostate cancer, kidney cancer, pancreatic cancer, benign and malignant tumors of bone, adrenal cancer, meningioma, glioma, uterine fibroids, uterine cancer, ovarian cancer, breast cancer, breast fibroma, and Cancer is analgesic, etc. Currently, liver cancer and lung cancer are the most commonly used. Contraindications 1, with systemic diseases, can not tolerate surgery. 2, local infection, not suitable for surgery. Preoperative preparation Regular use of antibiotics. Surgical procedure There are many types of 1.47mm cryoprobes. The commonly used models can form ice hockeys of 4×6cm size. The effective treatment range below 40 degrees is 1.5×3.5cm. Generally, small tumors can be treated with single needle, and larger tumors can be treated with multiple needles. The temperature sensor inside the probe of 2mm or more can monitor the temperature in the center of the freezing area. There is no temperature sensor inside the 1.47mm probe. If temperature is to be monitored, a temperature probe can be inserted separately to monitor the temperature inside the tissue. The monitored temperature change and freezing time can be displayed on the LCD as a temperature time curve so that the operator can know the freezing process in time. 2, the treatment is generally under the guidance of B-ultrasound, CT, magnetic resonance, puncture, real-time monitoring of the whole process of puncture. The surgical methods include percutaneous puncture, surgical direct puncture, and endoscopic puncture. During treatment, the probe is inserted into the tumor, argon gas is opened, frozen for 10 minutes, paused for 3 minutes, and then opened to sputum, and heated for 1 minute. This treatment process is repeated once more, and the treatment process ends, generally taking 25 time. minute. For early small tumors, cryotherapy can be used as an alternative to surgery. For advanced tumors, it can be used as palliative treatment to enhance the effect of comprehensive treatment, which can reduce tumor burden, reduce symptoms, improve quality of life and prolong survival time. 3, cryosurgery system for the treatment of tumors has a wide range of indications, mainly used in a variety of solid tumors throughout the body. Including liver cancer, lung cancer, prostate cancer, kidney cancer, pancreatic cancer, benign and malignant tumors of bone, adrenal cancer, meningioma, glioma, uterine fibroids, uterine cancer, ovarian cancer, breast cancer, breast fibroma, and Cancer is analgesic, etc. Currently, liver cancer and lung cancer are the most commonly used. complication The disadvantage of cryopreservation surgery is that the tumor cells may remain at the edge of the frozen area and become a source of recurrence; excessive freezing may cause serious complications such as organ rupture and "cold shock".