Treatment of Acquired Bilateral Nevus of Ota-Like Macules (Hori''s Nevus) with a Combination of the 532 nm Q-Switched Nd:YAG Laser Followed by the 1,064 nm Q-Switched Nd:YAG Is More Effective: Prospective Study

BACKGROUND: Acquired bilateral nevus of Ota-like macules (Hori's nevus) is a common dyschromatosis among Asian women. Q-switched lasers have been used successfully as a treatment modality. OBJECTIVE: The purpose of this study was to compare the efficacy of using the Q-switched 532 nm neodymium:yttrium-aluminum-garnet (Nd:YAG) laser followed by the 1,064 nm laser versus the Q-switched 1,064 nm Nd:YAG laser alone in the treatment of Hori's nevus. METHODS: This is a prospective left-right comparative study. Ten women with bilateral Hori's nevus were recruited and treated with a combination of the Q-switched 532 and 1,064 nm Nd:YAG lasers on the right cheek and the Q-switched 1,064 nm Nd:YAG laser alone on the left cheek. Only one laser treatment session was performed. The degree of pigmentation was objectively recorded with a mexameter. Subjective assessment was made by both patients and two blinded, nontreating dermatologists. RESULTS: At 6 months, there was a statistically significant difference (p = .009) of 35.10 points using objective mexameter measurements between the two sides, favoring the side treated with a combination of 532 and 1,064 nm laser treatment. Subjective grading by the patients and blinded dermatologists also confirmed that combination therapy was more successful after one treatment. Although combination treatment had a higher incidence of mild postinflammatory changes, this disappeared within 2 months. CONCLUSIONS: Concurrent use of the Q-switched 532 nm Nd:YAG laser in combination with the 1,064 nm laser is more effective in pigment clearance than the Q-switched 1,064 nm Nd:YAG laser alone for Hori's nevi.     

大剂量尿激酶静脉溶栓治疗急性心肌梗塞25例临床分析

目的 了解大剂量尿激酶静脉溶栓治疗急性心肌梗塞疗效.方法 对符合溶栓条件急性心肌梗塞25例病人,在常规治疗基础上,给予100万单位尿激酶静脉输注.结果 治愈23例,有效率92%.结论 使用大剂量尿激酶静脉溶栓治疗急性心肌梗塞,临床效果确切.     

Trisomy 8 in acute promyelocytic leukaemia: an interphase study by fluorescence in situ hybridization

Summary. Acute promyelocytic leukaemia (APL) is characterized by t(15;17)(q24;q21). Trisomy 8 is the commonest accompanying karyotypic aberration. We investigated 14 APL patients for trisomy 8 using fluorescence in situ hybridization (FISH). Conventional cytogenetic analysis showed trisomy 8 in two of nine successfully karyotyped cases. With FISH, a possible third case showing a subclone (1-2-5%) with trisomy 8 was found. The trisomy 8 clone size defined by karyotyping and FISH was concordant in one case and discordant in another, in which trisomy 8 was found in 100% of metaphases but only in 48% of leukaemic prbmyelocytes by FISH. Therefore trisomy 8 was mosaic in all the cases, suggesting that it had arisen from clonal evolution. AU-trans-retinoic acid successfully induced morphologic remission in both cases with trisomy 8.     

脂多糖刺激树突状细胞前后TLR2、3、4基因表达的检测

目的 检测脂多糖作用于树突状细胞前后TLR2、3、4基因的表达情况。方法 从外周血分离单核细胞，加入rhGM-CSF及rhIL-4，培养的第6天，实验组加入脂多糖刺激24h，对照组不加。分别提取细胞总RNA，行半定量RT-PCR，产物进行琼脂糖凝胶电泳分析。结果 单核细胞经GM-CSF及IL-4诱导7d后的DC表达较高水平TLR2、3、4。脂多糖刺激24h后，TLR2、3、4表达下降，TLR4几乎测不到。结论 树突状细胞在受脂多糖刺激前后TLRs的表达有显著变化，推测和它的功能成熟有关。     

回收式自体输血对手术患者凝血及免疫功能的影响

目的探讨回收式自体输血（BS）对机体凝血状态和T淋巴细胞亚群、NK细胞功能的影响。方法选择骨科大手术患者40例，随机分为自体输血组（BS组）和异体输血组（异体组）各20例，术中分别采用BS及输异体血，分别于术前、输血后1h及输血后24h测定血常规、APTT、PT、FIB及ACT；流式细胞仪测定输血后第1天、第5天T淋巴细胞亚群CD3^＋、CD4^＋、CD8^＋、CD4^＋／CD8^＋值及NK细胞。结果输血后1h两组APTT、PT、ACT均延长，FIB和PLT计数均降低（P〈0．05），但尚在正常范围内，组间比较元显著性差异（P〉0．05）。异体输血组输血后第1天和第5天CD3^＋、CD4^＋、CD8^＋、NK变化显著低于BS组（P〈0．01）；BS前后上述指标元明显变化（P〉0．05）。结论．BS对凝血功能的影响与异体输血相似，大量回输时应注意补充凝血因子和血小板；BS对机体细胞免疫功能元明显抑制作用。     

An outbreak of Pneumocystis carinii pneumonia in children with malignancy

An outbreak of Pneumocystis carinii pneumonia (PCP) in three patients within a 6 week period was reported. Two patients had acute lymphoblastic leukaemia and one had brain-stem glioma. They shared common features of immuno-suppression and absence of cotrimoxazole prophylaxis and had been nursed in the same room. The severity of PCP and its response to treatment may be related to the degree of immunosuppression. Because of the morbidity and mortality of PCP, chemoprophylaxis should be given to all at-risk cases. Furthermore, isolation of patients with PCP should be considered in view of increasing evidence of nosocomial transmission.     

腹腔镜手术并发症27例相关因素分析

目的 探讨腹腔镜手术的并发症及其相关因素。方法 回顾性研究西南医院妇产科近2年的2214例腹腔镜手术病例及27例出现并发症的病例情况。手术包括附件手术1721例，子宫肌瘤挖除术150例，子宫次全切术210例，子宫全切133例。并发症指术中出现的需额外处理或术后出现的因手术本身引起需进行再次手术或保守治疗的情况。结果 并发症发生率为1.22%，需手术处理者2例（0.09%)。附件手术、子宫肌瘤挖除、子宫次全切除术、子宫全切术的并发症发生率分别为0.52%、2.00%、3.33%及6.01%。与穿刺及气腹有关的并发症14例（51.9%)，包括腹壁血管损伤、严重皮下气肿及气腹针断裂；术中并发症3例（11.1%)，其中肠管损伤2例，1例改开腹手术，另1例为电极胸部皮肤烧伤；术后并发症10例（37.0%)，为术后发热。结论 妇科腹腔镜手术并发症不容忽视，并发症的发生与手术难度有关。