A case of a primary myelofibrosis with progression and related literature review of progression phase genetics

Philadelphia (BCR-ABL)-negative myeloproliferative neoplasms (MPNs) include polycythemia vera (PV), essential thrombocythemia (ET), and primary myelofibrosis (PMF). MPN can transform into an accelerated or a blast phase, which is associated with poor response to standard therapy and low overall median survival. We present an interesting case of a patient with a history of PMF and progression and summarize the current studies on genetic features of myeloproliferative neoplasms in blast phase (MPN-BP) with an emphasis on PMF. Although MPN-BP show ≥20% blasts in peripheral blood or bone marrow, it is not considered as acute myeloid leukemia (AML) according to the WHO classification. While MPNs-BP typically lack genetic mutations seen in de novo AML, they commonly harbor IDH1/2, SRSF2, ASXL1, and TP53 mutations, similar to the genetic profiles of acute myeloid leukemia with myelodysplasia-related changes (AML-MRC).     

术中按需喷洒与术前口服二甲硅油 在肠镜检查中的作用研究

〔摘 要〕 目的：探讨术中按需喷洒与术前口服二甲硅油在肠镜检查中的应用效果。 方法：选取 2020 年 1 月至 2021 年 6 月于萍乡市人民医院行肠镜检查的无明显症状患者 90 例，按随机数字表法分为两组，对照组和观察组各 45 例。两组均 使用聚乙二醇电解质散清洁肠道，对照组术前口服二甲硅油，观察组术中按需喷洒二甲硅油。比较两组患者肠道清洁分级、 气泡分级、二甲硅油用量、肠镜检查操作时间、结肠息肉检出率及患者满意度。 结果： 两组患者肠道清洁分级相比，差异无 统计学意义（P ＞ 0.05）。观察组患者气泡分级 1 级率为 80.00 %，高于对照组的 62.22 %，差异具有统计学意义（P ＜ 0.05）。 观察组患者二甲硅油用量为（14.58 ± 2.01）mL，少于对照组的（22.35 ± 2.65）mL，进、退镜时间分别为（8.89 ± 1.14）min、 （8.33 ± 1.08）min，短于对照组的（9.76 ± 1.27）min、（10.27 ± 2.04）min，差异有统计学意义（P ＜ 0.05）。观察组患者 结肠息肉检出率、患者满意度为 17.78 %、97.78 %，高于对照组的 4.44 %、82.22 %，差异具有统计学意义（P ＜ 0.05）。 结论：术中按需喷洒二甲硅油在肠镜检查中效果更佳，可减少二甲硅油用量，提高视野清晰度，缩短肠镜检查操作时间， 并利于结肠息肉的检出，提高患者满意度。     

Intracorporeal lymph node mapping in colon cancer surgery

IntroductionThe best approach to lymphadenectomy in colon cancer is still unknown. The debate has centred around different options of standardised “one size fits all” lymph node harvest techniques. A different approach is tailoring lymph node harvest to the patient's lymphatic drainage pattern.MethodsA technique for individualised lymph node mapping is proposed, which can guide the surgeon intraoperatively. It consists in the intracorporeal injection of 10 mg of indocyanine green at 4 points in the periphery of the colonic tumour. A near infrared camera is used to assess the fluorescence after specimen mobilisation but before extraction, allowing lymphadenectomy based on the patient's own lymphatic drainage.Resultsa video demonstration of the technique and preliminary results in 6 patients is presented in this short report.Conclusionintracorporeal lymph node mapping is feasible and safe. Further studies are required to determine the place of this technique in modern oncologic colon surgery.     

唑来膦酸对芳香化酶抑制剂辅助治疗乳腺癌患者骨密度的影响

目的观察唑来膦酸对芳香化酶抑制剂辅助治疗乳腺癌患者骨密度的影响。方法前瞻性评估了102例绝经后临床激素受体阳性乳腺癌I-III A期患者术后12个月内腰椎和双侧股骨颈的骨密度(bone mineral density,BMD)改变。患者术后接受芳香酶抑制剂作为辅助治疗且患有骨质疏松症(腰椎或双侧股骨颈BMD,相当于T值分类≤-2. 5)的女性。患者12个月内接受补充钙、维生素D和5 mg静脉注射唑来膦酸治疗。结果腰椎骨密度在6个月和12个月时分别增加了4. 9%和6. 6%。右股骨颈和左股骨颈的BMD分别为3. 3%和4. 1%。在该研究中未观察到低钙血症、颌骨坏死和非创伤性临床骨折。结论本研究表明,接受佐剂芳香酶抑制剂治疗的妇女接受一次唑来膦酸治疗后BMD大幅增加,无论其芳香酶抑制剂治疗的历史如何。     

Adjuvant chemotherapy in patients with colorectal cancer. Is there a role in the older adult?

As global life expectancy has increased in most countries, there is a rising percentage of patients over 65 years old being diagnosed with colorectal cancer. Despite an increase in the incidence and prevalence of colorectal cancer in older adults, this cohort receives adjuvant therapy at a decreased rate due to anticipated intolerance. The presumed limitations seem to be based on chronologic age, competing life limiting diagnoses, and the paucity of data studying this population in major clinical trials. This review explores the data regarding disparities in the treatment of older patients with colorectal cancer, safety and efficacy of adjuvant therapy, and newer tools to make decisions based on the biologic age, rather than chronologic age, of the patient.