The difficult choice between total and proximal gastrectomy in proximal early gastric cancer

Background

Surgical results including postoperative complications, prognoses, body weight changes, and nutritional statuses were compared in patients with early gastric cancer in the upper third of the stomach who were treated by total gastrectomy or proximal gastrectomy.

Methods

The authors reviewed clinicopathologic features, postoperative complications, survivals, body weight changes, and biochemical markers after surgery in 423 patients who underwent total or proximal gastrectomy for early gastric cancer in the upper third of the stomach.

Results

The proximal gastrectomy group (n = 89) had smaller tumors, shorter resection margins, and smaller numbers of retrieved lymph nodes than the total gastrectomy group (n = 334). N stages and 5-year survival rates were similar after total and proximal gastrectomy. Postoperative complication rates after total gastrectomy and proximal gastrectomy were 12.6% and 61.8%, respectively, which was significant (P < .001). Rates of anastomotic stenosis and reflux esophagitis were 6.9% and 1.8% after total gastrectomy and 38.2% and 29.2% after proximal gastrectomy, respectively. The parameters that reflect nutritional status (ie, body weight, serum hemoglobin, total protein, albumin, glucose, and cholesterol) were similar in the proximal and total gastrectomy groups at 6, 12, 24, and 36 months postoperatively.

Conclusion

Although the surgical safeties and curabilities of proximal and total gastrectomy were similar, proximal gastrectomy was found to be associated with a markedly higher rate of complications such as anastomotic stenosis and reflux esophagitis and to provide no benefit in terms of postoperative weight loss. The authors conclude that proximal gastrectomy is not a better option for upper-third early gastric cancer than total gastrectomy.     

下颌角外翻角度的三维测量

目的 通过三维测量下颌骨的解剖形态,分析面下部过宽者下颌角肥大的程度,了解下颌角外翻的相关指标对面下部宽度的影响,为下颌角截骨术适应证的选择提供相关解剖学依据.方法 选择2003～2006年间50例上海市第九人民医院整形外科临床下颌角肥大就诊者,女性46例,男性4例,平均年龄29岁,均行全头颅螺旋CT检查和颅骨三维重建,测量下颌角角度、下颌角外翻角度、下颌升支高度、下颌角间宽及下颌夹角,并对各指标进行t检验和相关检验统计分析.结果 所测就诊者下颌角角度左侧为(113.04±O.06)°,右侧为(113.55±0.06)°,下颌角间宽为(103.17±7.26)cm,下颌夹角为(73.00±5.35)°,外翻角度左侧为(36.46±12.41)°,右侧为(37.69±12.41)°;下颌角外翻角度与下颌角间宽呈显著正相关(r=0.453,P＜0.05);下颌角外翻角度与下颌夹角呈显著正相关(r=0.717,P＜0.05).结论 下颌角外翻角度对下颌角肥大手术适应证的选择有较大临床指导意义.     

股骨近端Z形短缩截骨全髋置换术治疗成人CroweⅣ型发育性髋关节脱位

目的 探讨股骨近端Z形短缩截骨全髋置换术治疗CroweⅣ型成人髋关节发育不良的手术方法和临床疗效.方法 2000年7月至2006年2月,对13例CroweⅣ型成人发育性髋关节脱位继发骨关节炎患者行全髋关节置换术,同时采用股骨近端Z形短缩截骨.回顾性分析13例患者的临床资料,其中左髋9例,右髋4例.术前Harris评分36.9分.结果 所有患者均获得随访,随访时间4～55个月,平均32个月.Harris评分术后增加至84.1分.患者均能自行下地行走,步态明显改善,髋关节功能良好.结论 股骨近端Z形短缩截骨及全髋关节置换术是治疗Crowe Ⅳ型成人髋关节发育不良继发骨关节炎的有效方法,但手术难度大.其后期疗效有待进一步随访观察.     

cⅠA期非小细胞肺癌纵隔淋巴结切除方式的临床研究

目的 探讨不同淋巴结切除方式在病理诊断为T1的cⅠA期非小细胞肺癌治疗中的作用.方法 根据淋巴结切除方式的不同,将1998年1月至2002年5月115例病理诊断为T1的cⅠA期非小细胞肺癌患者分为系统性纵隔淋巴结清扫组(清扫组)和纵隔淋巴结采样组(采样组),回顾性分析两组的并发症、N分期及预后之间的差异,评价各临床病理因素与预后的关系.结果 清扫组平均每例切除淋巴结(15.98±3.05)个,采样组平均每例切除淋巴结6.48±2.16个,两组差异有统计学意义(P＜0.01),但清扫组的手术时间、术后胸腔引流量及并发症发生率均多于采样组.两组在淋巴结分期的改变、总生存率与无病生存率等方面差异无统计学意义;进一步分析发现,当肿瘤直径＞2 cm时,清扫组与采样组的5年总生存率分别为78.2%和54.5%,无病生存率分别为75.1%和51.3%,清扫组均高于采样组(P＜0.05);当肿瘤直径≤2 cm时,两组的5年总生存率与无病生存率无明显差别.病理类型方面,大细胞癌和腺鳞癌5年总生存率低于腺癌和鳞状细胞癌(P＜0.05),有淋巴结转移的5年总生存率与无病生存率明显低于无淋巴结转移者(P均＜0.01).结论 对于术中确定为T1的cⅠA期非小细胞肺癌,当肿瘤直径≤2 cm时,选择纵隔淋巴结采样术可以相对减小创伤;当肿瘤直径＞2 cm时,选择系统性纵隔淋巴结清扫术可能更有助于长期生存.     

B超、磁共振胆胰管成像、内镜逆行胰胆管造影术在诊断胆总管结石中的价值

目的 探讨B超、磁共振胆胰管成像(MRCP)、内镜逆行胰胆管造影术(ERCP)在胆总管结石诊断中的价值.方法 收集2005年8月至2007年10月怀疑为胆总管结石且同时行B超、MRCP、ERCP的患者384例,对3种检查方法 进行比较分析.结果 384例患者中,最后经ERCP确诊胆总管结石者370例;B超诊断胆总管结石者268例,其中8例为假阳性,诊断准确率为70.3%(260/370);MRCP诊断362例,其中6例为假阳性,诊断准确率96.2%(356/370).有7例患者MRCP发现有胆总管结石和胆总管扩张,ERCP造影仅发现胆总管扩张,但在用取石网篮和取石气囊清理胆道时取出小结石.结论 B超对于胆总管结石的诊断具有一定的准确率,可作为最基本的检查手段,MRCP和ERCP对于胆总管结石的诊断具有较高的一致性,MRCP可部分替代诊断性ERCP,联合应用MRCP和ERCP可提高胆管结石诊断准确率.     

Tumor Necrosis Rate Adjusted by Tumor Volume Change Is a Better Predictor of Survival of Localized Osteosarcoma Patients

Background We assessed whether new parameter that considers both tumor volume change and necrosis rate predicts metastasis-free survival of localized osteosarcoma patients. We also evaluated relationship between tumor volume change and necrosis rate or metastasis-free survival. Methods We retrospectively reviewed 151 patients with stage II osteosarcoma who were treated with surgery and neoadjuvant chemotherapy. The tumor volume change was measured and calculated based on pre- and postchemotherapy magnetic resonance images. The mean metastasis-free interval was 83.1 months. We calculated adjusted tumor necrosis rate as following formula: 100–(100–necrosis rate) × postchemotherapy/prechemotherapy tumor volume. Survival and logistic regression analyses were used to evaluate the correlation among size parameters, tumor necrosis rate and survival. Results The 5-year metastasis-free survival rate of 151 patients was 71.4% (95% CI, 67.7–75.1%). American Joint Committee on Cancer (AJCC) stage IIB (RR 2.27; 95% CI, 1.11–4.62; P = 0.025) and poor adjusted tumor necrosis rate (RR 2.02; 95% CI, 1.05–3.89; P = 0.035) independently correlated with metastasis-free survival period. Further, tumor volume change independently correlated with necrosis rate. Decreased tumor volume could predict good response, with sensitivity of 80.2%, specificity of 68.6%, and positive predictive value (PPV) of 74.7%. Increased or stable tumor volume could predict poor response, with sensitivity of 68.6%, specificity of 80.2%, and PPV of 75.0 %. Conclusion The necrosis rate adjusted by the tumor volume change is an independent prognostic factor in osteosarcoma. This adjusted tumor necrosis rate may serve as a basis for risk-adapted therapy in combination with other prognostic factors.     

Treatment Guidelines for Branch Duct Type Intraductal Papillary Mucinous Neoplasms of the Pancreas: When Can We Operate or Observe?

Background The objectives of this study were to investigate the clinicopathological features of branch intraductal papillary mucinous neoplasm (IPMN) and to determine safe criteria for its observation. Most clinicians agree that surgical resection is required to treat main duct-type IPMN because of its high malignancy rate. However, no definite treatment guideline (with respect to surgery or observation) has been issued on the management of branch duct type IPMN. Methods We retrospectively reviewed the clinicopathological data of 138 patients who underwent operations for IPMN between 1993 and 2006 at five institutes in Korea. Results Of 138 patients (mean age, 60.6 years; 87 men, 51 women), 76 underwent pancreatoduodenectomy, 39 distal pancreatectomy, 4 total pancreatectomy, and 20 limited pancreatic resection. There were 112 benign cases: 47 adenoma, 63 borderline cases, and 26 malignant cases, with 9 of these being noninvasive and 17 invasive. By univariate analysis, tumor size and the presence of a mural nodule were identified as meaningful predictors of malignancy. By receiver operating characteristic curve analysis, a tumor size of >2 cm was found to be the most valuable predictor of malignancy. When cases were classified according to tumor size and the presence of a mural nodule, the malignancy rate for a tumor ≤2 cm without a mural nodule was 9.2%, for a tumor of ≤2 cm plus a mural nodule was 25%, and for other conditions such as tumor >2 cm, >25%. Conclusions Many branch duct IPMNs are malignant. Surgical treatment is recommended, except in cases that are strongly suspected to be benign or cases that present a high operative risk. Observation is only recommended in patients with a tumor size of ≤2 cm without a mural nodule.     

中药生精冲剂对精索静脉曲张大鼠的治疗

目的：研究中药生精冲剂对大鼠精索静脉曲张的影响及疗效。方法：从80只SD雄性大鼠中随机抽出20只作为假手术组，余60只均建立精索静脉曲张病理模型后随机均分为模型组、生精冲剂组和克罗米芬组。造模后15d生精冲剂组和克罗米酚组分别给予生精冲剂4g/（kg·d）和克罗米芬20mg/（kg·d）灌胃，模型组和假手术组正常喂食。造模后45d放免法测定血清性激素（FSH、LH和T）及观察各组大鼠睾丸组织结构。结果：生精冲剂组大鼠光镜下睾丸组织结构优于模型组和克罗米芬组；血清FSH、LH生精冲剂组显著低于模型组和克罗米芬组（P〈0.05），而克罗米芬组显著高于其他3组。T在生精冲剂组、克罗米芬组和假手术组之间无显著差异，但均显著高于模型组（P〈0.05）。结论：中药生精冲剂对精索静脉曲张引起的睾丸损害有保护及修复作用，且可能优于克罗米芬。     

带蒂皮瓣移位联合外固定支架治疗小腿开放性骨折伴软组织缺损

目的总结带蒂皮瓣移位联合外固定支架治疗小腿开放性骨折伴软组织缺损的临床效果。方法2004年5月-2007年6月，收治小腿开放性骨折伴皮肤软组织缺损患者12例。男9例，女3例；年龄18～75岁。车祸伤8例，压砸伤2例，坠落伤、机器伤各1例。根据Gustilo分型：Ⅱ型2例,ⅢA型5例，ⅢB型5例。骨折位于胫骨上段2例，中段3例，中下段7例。软组织缺损范围5cm&#215;3cm～22cm&#215;10cm，骨外露范围3cm&#215;2cm～6cm&#215;3cm。病程1～12h。入院后以外固定支架或联合克氏针有限内固定重建骨稳定性，采用同侧小腿局部旋转皮（肌）瓣、腓肠神经营养皮（肌）瓣、隐神经营养皮瓣修复创面。皮（肌）瓣切取范围5cm&#215;4cm～18cm&#215;12cm。供区创面采用游离植皮或直接缝合。结果术后2例皮瓣创缘部分感染，1例皮瓣远端部分坏死，经换药处理后创缘Ⅱ期愈合；余患者皮瓣均成活，切口Ⅰ期愈合。供区植皮成活，切口均Ⅰ期愈合。术后患者均获随访，随访时间6个月～2年。皮瓣外形满意，质地优良，无明显臃肿。8例出现外固定支架针道感染，外固定取出后痊愈。1例胫骨中下段粉碎性骨折不愈合，2例胫骨中下段骨折延迟愈合，余患者骨折于术后3～4个月愈合。3例超踝关节外固定患者踝关节活动稍差，踝关节背伸0～10^o，跖屈10～30^o，余患者踝关节背伸10～20^o，跖屈30～50^o。结论带蒂皮瓣移位联合外固定支架治疗小腿开放性骨折伴皮肤软组织缺损是一种安全有效的方法。     

雾化吸入重组人干扰素-γ治疗复治耐多药肺结核患者的护理

对36例复治耐药或耐多药肺结核患者采用雾化吸入重组人干扰素-γ治疗8周,26例(72.2%)痰茵涂片转阴;24例(66.7%)痰培养转阴;30例(83.3%)血沉恢复正常;28例(77.8%)病灶吸收好转.提出做好心理护理、基础护理.给予正确的雾化吸入指导,严密观察用药的不良反应.可提高患者的治疗依从性.保证治疗效果.