目的:研究纳米炭淋巴示踪剂在乳腺癌手术淋巴结病理检查中价值。方法:84例乳腺癌患者随机分为普通组和纳米炭组2组,比较2组患者淋巴结检获情况。结果:两组共计检获淋巴结1660枚,其中纳米炭组(24.5±3.2)枚/例,显著高于常规组(13.5±5.3)枚/例,(t=3.475, Plt;0.05)。纳米炭组检获出更多淋巴结,炭着色淋巴结癌转移率更高。结论:纳米炭示踪剂提高了淋巴结检获率,确保了病理活检的准确性,是一值得推广的示踪剂。
ObjectiveTo explore the surgical technique and preliminary safety and aesthetics results of immediate prepectoral implant-based breast reconstruction (BR) with titanium-coated polypropylene mesh (TiLoop Bra) after skin-sparing mastectomy (SSM) or nipple-areola-complex-sparing mastectomy (NSM) for breast cancer patients. MethodsThe clinical data of consecutive patients who underwent immediate prepectoral implant-based BR with TiLoop Bra after SSM or NSM in West China Hospital from January to July 2022 were retrospectively analyzed. The operation time, intraoperative blood loss, early complication were collected. The preliminary aesthetics results were assessed with the Ueda score and Harris score. Results All the patients were female with a mean age of 39.0±6.8 years. One patient had bilateral breast malignant tumors, and the others had unilateral malignant tumors. Six patients received neoadjuvant chemotherapy before surgery. The mean diameter of the tumors was 24.4±11.9 mm under the color ultrasound before the neoadjuvant chemotherapy. The mean operation time was 153.9±49.4 min. The mean intraoperative blood loss was 29.2±18.3 mL. There were 3 patients with tumor stage 0, 10 patients with stage Ⅰ, 6 patients with stage Ⅱ, 3 patients with stage Ⅲ and 1 patient was found no residual cancer after neoadjuvant chemotherapy. All the patients were successfully followed up with a median follow-up time of 4.8 (3.0-9.2) months. There were 2 (8.3%) patients with major complications, including 1 wound dehiscence and 1 hematoma, and 4 (16.7%) minor complications, including 2 wound dehiscence and 2 infection. The patients with excellent and good Ueda score and Harris score accounted for 82.6% and 87.0%, respectively. None of the patients had animation deformity, capsular contracture, nipple-areola or skin flaps necrosis, or implant loss. During the follow-up period, no local/regional recurrence or distant metastasis was found. Conclusion For selected reliable patients, immediate prepectoral implant-based BR with TiLoop Bra after SSM or NSM for breast cancer patients is safe and has good aesthetics results in the early postoperative period. It has broad application space in patients with suitable indications, and can be promoted as a routine operation.
ObjectiveTo evaluate the effects of high intensity focused ultrasound (HIFU) on hepatic cancer cells spreading in blood.Methods AFP mRNA in peripheral blood of 19 patients with hepatocellular carcinoma was detected before and after HIFU therapy by RTPCR.Results①Before HIFU therapy, 11 of 19 cases were AFP mRNA positive (57.9%), while the control group were all negative. AFP mRNA was correlated with some clinical parameters such as serum AFP level, tumor size, portal vein embolism and extrahepatic metastasis (P＜0.05). ②In 8 cases with preoperative AFP mRNA negative, only 2 cases became AFP mRNA positive immediately after therapy, and one of the 2 cases became negative again after 72 hours. One week after HIFU therapy, the AFP mRNA positive rate (31.6%) was much lower than the preoperative positive rate (57.9%), but there was no statistical significance (Pgt;0.05). ③After one week of HIFU therapy, the AFP mRNA positive rate of the group with tumor size less than 8 cm was much lower than that of tumor size larger than 8 cm (P＜0.05). ConclusionHIFU may reduce the spreading of hepatocellular carcinoma cells in blood. It is effective for patients with tumor size less than 8 cm.
Objective To explore the clinical application of combination of radiolabeled colloid （99Tcm-sulphur colloid） and blue dye in sentinel lymph node biopsy （SLNB） for early-stage breast cancer. Methods SLNB was performed with the guidance of blue dye, radiolabeled colloid, and the combination method in all patients enrolled, and clinical and pathological data were recorded respectively for analysis. Results Two hundred and one patients were enrolled in this study and the SLN were successfully detected in 200 cases. The identification rate of radiolabeled colloid method and combination method was 99.5% （200/201） and 99.5% （198/199） respectively, which significantly higher than blue dye method （85.4%, P＜0.001）. There were no differences of accuracy rate 〔95.3% （162/170） vs. 94.5% （189/200） vs. 98.0% （194/198）, P=0.185〕 and false negative rate 〔11.3% （8/71） vs. 13.9% （11/79） vs. 5.1% （4/79）, P=0.165） between blue dye method, radiolabeled colloid method, and combination method. The combination method could detect more SLN than radiolabeled colloid method or blue dye method only （P＜0.001）. Compared to combination method, there were 12 and 7 patients miss diagnosed in blue dye method and radiolabeled colloid method, and the miss diagnosed rate was 16.0% （12/75） and 9.3% （7/75）, respectively. Conclusions Compared to radiolabeled colloid and blue dye method, combination method has higher identification rate, and could identify more SLNs. It is recommended that the combination of radiolabeled colloid and blue dye should be adapted for procedure of SLNB in clinical practice.