Objective To evaluate the role of transrectal ultrasonography (TRUS) in preoperative evaluation of the depth of invasion in rectal carcinoma.Methods Fifty-eight cases with rectal carcinoma confirmed by pathology underwent TRUS before surgery.Preoperative staging was performed using the T staging system on the basis of TRUS sonogram.The T staging results by TRUS were compared with those of postoperative pathologic staging.Results The preoperative overall accuracy rate of TRUS was 82.76％ (48/58).The diagnostic accuracy rates in T1-T4 stage by TRUS were 94.83％(55/58),86.21％(50/58),86.21％ (50/58) and 98.28％ (57/58).Staging rectal carcinoma with TRUS showed better consistency with postoperative pathologic staging.Conclusions TRUS has a better accuracy in preoperative evaluation of the depth of invasion in rectal carcinoma.TRUS is an important factor in rational treatment.

Objective To study the effects of previous analgesia of acupuncture on patients with the mixed hemorrhoid surgery pain.MethodsA total of 70 patients with mixed hemorrhoid treated with “Milligan-morgan hemorrhoids” were randomly divided into treatment group and control group, 35 patients in each group. The treatment group was treated 30 min prior to the surgery with needling and manipulating Baliao, Chengshan, Hegu every five minutes until the operation, while the control group was not treated before the operation. The patients were assessed by Visual Aualogue Scale and self-reporting Inventory.ResultsAfter the operation, the treatment group was significantly better than the control group in the outcome index of beginning time of pain (14.3 ± 4.9 hvs. 4.2 ± 2.3 h, Z=-5.666,P<0.01) and peak time of pain (17.3 ± 4.5 hvs. 6.0 ± 2.9 h,Z=-5.581,P<0.01). The treatment group was significantly better than the control group in decreasing the pain beginning VAS score (3.3 ± 1.7vs. 4.6 ± 1.7,Z=-2.820, P<0.01) and pain peak VAS score (4.5 ± 2.0vs. 6.5 ± 1.2,Z=-4.025,P<0.05). After surgery, the treatment group was significantly better than the control group in decreasing the score of Self-reporting Inventory scale at the 1stday (1.8 ± 1.3vs. 3.0 ± 1.3),Z=-3.472,P<0.01) and 2ndday (1.2 ± 0.9vs. 1.9 ± 1.2,Z=-2.464,P<0.05). And the treatment group was significantly better than the control group inreducing the quantities of compound aminopyrine phenacetin tablet (0.5 ± 0.9vs.1.5 ± 1.7,t=3.167,P=0.002).ConclusionAcupuncture analgesia 30 minutes prior to the mixed hemorrhoid surgery can significantly reduce the postoperative pain.

Myeloid-derived suppressor cells (MDSCs) are a group of immature and heterogeneous cells that can inhibit T cell function. In pathological conditions such as tumors, infections, and chronic inflammation, the large expansion of MDSCs is involved in processes of immune escape, immune tolerance and inflammatory reactions. MDSCs are also crucial in the pathophysiology of hepatitis B virus (HBV) infection, however, their activation, differentiation, and function during HBV infection are still unclear. This article reviews the general characteristics and roles of MDSCs in HBV infection, as well as related drug therapies, in order to provide information for further research on the related mechanism and potential targeted treatment.