Group differences were significant (Table 3).
Table 3: The occurrence of subcutaneous hemorrhage in the cannula group and the conventional group (example) The total amount of subcutaneous hemorrhage in the winter is not conventional. If the application of the superficial vein indwelling sleeve is removed, the pain and psychological stress caused by repeated venous punctures are relieved. It reduces the workload of nursing; at the same time, it brings convenience to clinical treatment, and reduces the incidence of subcutaneous hemorrhage caused by intravenous phlebitis, thrombophlebitis, venous atrophy and venous injury. Compared with deep venous catheterization, it has the advantages of simple operation, less technical difficulty, less complications, high safety factor, less damage to blood vessels, easy observation and care. It is suitable for the treatment of various diseases and patients requiring long-term infusion therapy. It can also be used to collect venous blood specimens c 2mm for sputum, 3 ~ 5mm for purpura, >5mm for ecchymosis, flaky hemorrhage and skin bulge for hematoma.
Hematopoietic system, severe infection, certain vascular damaging diseases (hemorrhagic fever with renal syndrome, leptospirosis, etc.), poisons and drug poisoning can cause subcutaneous hemorrhage. In addition to the above factors, subcutaneous hemorrhage caused by venipuncture is mainly caused by local venous wall injury caused by nursing behavior, Jf, oozing and exudation due to heart function; venous infusion of lower extremity is more complicated, and complicated with deep vein Embolization is also susceptible to heart function and abdominal pressure. This study showed that the application of the indwelling cannula of the upper extremity superficial vein was significantly lower than that of the conventional method of intravenous administration, and the incidence was 9%. The conventional method was 23%. The difference between the two was significant (P<0.05). The indwelling time of the superficial venous indwelling catheter depends on local infection, obstruction and other complications. The longest indwelling time of this group of patients was 70 days without complications, which was consistent with the report.
In addition, we also observed that superficial indwelling can reduce the incidence of phlebitis, thrombophlebitis, and venous atrophy, better to protect the veins, avoid the operation of deep vein catheters and the more common in the process. Blood pneumothorax, air embolism, compression of the external pressure caused by external jugular vein and arrhythmia and other complications.
4 Conclusions Intravenous administration of the superior venous indwelling cannula can reduce and prevent subcutaneous hemorrhage caused by conventional intravenous administration, improve the quality of clinical care and the patient's satisfaction with nursing work.
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