腹腔镜胆囊切除术对胰岛β细胞功能的影响

目的　了解腹腔镜胆囊切除术 (LC)对人胰岛 β细胞功能的影响。 方法　 40例择期在硬膜外阻滞麻醉下胆囊切除术病人 ,随机分为腹腔镜胆囊切除术组 (LC组 ,n =2 0 )和开腹胆囊切除术组 (OC组 ,n =2 0 )。分别于术前、气 (开 )腹后 2 0分钟、术毕 2 0分钟取血样 ,用放免法测定血浆胰岛素和C肽 ,用葡萄糖氧化酶 (GOD)法测定血糖。结果　气 (开 )腹后和术毕两组血糖均高于术前。以OC组增高明显 (P <0 0 1) ;LC组仅术毕 2 0分钟高于术前 (P <0 0 5 )。胰岛素、C肽和胰岛素 /血糖比 (I/G)∶LC组气腹后、术毕均略高于术前 (P >0 0 5 )。与术前比OC组胰岛素增加不明显 (P >0 0 5 )。C肽开腹后降低 (P <0 0 5 ) ,术毕后升高 (P <0 0 5 )。I/G术毕略低于术前 (P >0 0 5 )。结论　LC应激反应轻于OC ,对胰岛 β细胞功能无明显影响。     

全麻复合硬膜外阻滞及术后镇痛对开胸围术期循环和内分泌功能的影响

目的:观察全麻联合硬膜外阻滞及术后镇痛对开胸围术期循环和内分泌功能的影响.方法:将80例开胸手术病人,随机分为全麻复合硬膜外阻滞(TEA组)和单纯全麻(GA组)各40例.TEA组术后硬膜外镇痛48 h;GA组术后必要时肌注哌替啶镇痛.分别测定入室基础值(T0)、诱导插管后(T1)、切皮后(T2)、手术探查时(T3)、肿瘤切除后(T4)、术毕即刻(T5)、术后24 h(T6)、术后48 h(T7)各时段的MAP、HR和同一时段抽取静脉血测定皮质醇、胰岛素和血糖浓度变化.结果:GA组围术期的MAP在T2、T3、T5、T6和HR在T2、T5、T6时段均显著高于T0水平或TEA组同一时段(P＜0.05或P＜0.01);皮质醇在T3、T5、T6时段GA组明显高于TEA组(P＜0.01或P＜0.05);胰岛素仅在T3时段GA组显著高于TEA组(P＜0.01);血糖浓度GA组在T2、T3、T4、T5、T6、T7时段均分别较T0或TEA组同一时段显著升高(P＜0.01).结论:全麻联合硬膜外阻滞可有效缓解开胸手术应激反应,对循环和内分泌影响小,同时术后镇痛可减轻围手术期糖代谢紊乱.     

动脉导管结扎术儿童胰岛素抵抗的发生机制初探

目的　观察动脉导管结扎术过程中糖代谢改变 ,探讨胰岛素抵抗产生的机制。方法　8例动脉导管结扎术患者 ,于麻醉前、麻醉后、开胸后 2 0分钟、术毕、术后 6小时采取血样 ,测定血糖、胰岛素、C 肽、乳酸、TNF α的浓度 ,并于手术开始即刻、术毕关胸即刻取骨骼肌标本 ,测定骨骼肌细胞膜胰岛素受体酪氨酸蛋白激酶 (TPK)活性的变化。结果　术毕、术后 6小时血糖、C 肽均分别显著高于麻醉前的对照值 (P <0 0 1) ,胰岛素、乳酸、TNF α则无明显变化。血糖与胰岛素乘积 (Gs×Ins)亦显著升高 (P <0 0 1)。手术前后骨骼肌细胞膜胰岛素受体TPK活性以及对胰岛素刺激的反应性均无明显改变。结论　动脉导管结扎术毕及术后的胰岛素抵抗似与胰岛素受体的TPK活性无关     

不同镇痛方法对胆囊切除术病人糖代谢和康复的影响

目的　观察比较多途径和单一方式镇痛方法对胆囊切除手术病人糖代谢和术后康复的影响。方法　 40例择期在硬膜外阻滞下行胆囊切除术的病人 ,随机分为多途径组 1(M1)、多途径组 2 (M2 )、对照组 1(C1)和对照组 2 (C2 )。C1组于术前从硬膜外腔给予吗啡 1mg +新斯的明 1mg。C2 组术后仅肌注哌替啶镇痛。M1和M2 组在C1基础上于术前至术后 2天口服双氯芬酸 ,M2 组于术毕在切口处采用 0 5 %布比卡因喷洒。结果　M1和M2 组血糖 (Glu)变化平稳。C1组血糖于术后第 1天上升 (P <0 0 5 ) ,C2 组血糖值则从术中至术后第 3天均明显上升 (P <0 0 5或P <0 0 1)。术后第 1天 ,四组胰岛素 (Ins)水平均明显上升 (P <0 0 5或P <0 0 1)。C1和C2 组胰岛素上升幅度明显高于M1和M2 组 (P <0 0 5 )。至术后第 3天 ,M1和M2 组胰岛素水平均恢复至正常水平 (P >0 0 5 ) ,而C1和C2 组胰岛素值仍高于麻醉前值 (P <0 0 5或P <0 0 1)。血浆皮质醇 (Cor)浓度均于术中 6 0分钟时明显上升 (P <0 0 1) ,与M1和M2 组相比 ,升高幅度以C1和C2 组显著 (P <0 0 5 )。IL 6水平在各组未见显著性改变 (P >0 0 5 )。结论　多途径镇痛方法对术后糖代谢和康复的影响小于单一途径镇痛术     

冠心病病人术后硬膜外镇痛心电图和内分泌的变化

目的　观察冠心病病人上腹部手术后硬膜外镇痛 (EA)对皮质醇、胰岛素及心电图的影响。方法　比较术后 2 4小时EA与肌注镇痛 (MI)的镇痛效果 ,观察心电图及血清皮质醇、胰岛素和血糖的变化。结果　 (1)EA镇痛效果优于MI组 (VAS :1 5 6± 0 5 3和 4 2 2± 1 74) (P <0 0 1)。 (2 )术后血清皮质醇、胰岛素和血糖浓度EA病人明显低于MI病人 (P <0 0 5 )。 (3)EA组术后ST段压低导联数和压低值总和趋于减少 ;MI术后 10小时和 2 4小时ST段压低导联数和压低值总和明显高于术前水平 (P <0 0 5 ) ,并高于EA组 (P <0 0 5 )。结论　冠心病病人上腹部手术后硬膜外镇痛明显减轻术后皮质醇过度分泌并减少心肌缺血的发生     

乌司他丁对腹腔镜胆囊切除术病人肝功能的保护作用

目的　探讨腹腔镜胆囊切除术 (laparoscopiccholecystectomy ,LC)病人术后肝功能的变化情况 ,同时评价应用乌司他丁的治疗效果。方法　随机将 4 0例ASA分级Ⅰ～Ⅱ级择期在气管内全麻下行LC的病人均分为两组 :A组为乌司他丁治疗组 ,在术前 1d、术中及术后第 1～ 3天给予 2 0万U乌司他丁静脉滴注 ;B组为对照组 ,给予等量生理盐水静脉滴注。比较两组病人术后肝功能和应激水平的变化。结果　两组病人术后第 1、3天谷丙转氨酶 (ALT)、谷草转氨酶 (AST)较术前均明显升高 (P <0 0 5 ) ,A组升高程度明显低于B组 (P <0 0 1) ;术后第 7天两组病人ALT、AST均恢复至术前水平 (P >0 0 5 )。术毕、术后第 1天B组病人C反应蛋白 (CRP)、皮质醇 (Cor)较术前显著升高 (P <0 0 1) ,术后第 3天恢复至术前水平 ;A组病人术后CRP、Cor无明显变化。结论　乌司他丁对LC术后肝功能具有保护作用 ,同时还可缓解其应激反应。     

全麻复合硬膜外阻滞在老年病人上腹部手术的应用

目的　评价全麻复合硬膜外阻滞对老年上腹部手术病人循环及应激反应状态的影响。方法　 30例ASAⅠ～Ⅱ级、择期上腹部手术老年病人 ,随机分为单纯全麻组 (对照组 )和全麻复合硬膜外阻滞组 (研究组 )。两组全麻诱导和维持方法相同 ,全麻诱导用咪唑安定 0 0 5mg/kg、芬太尼4 μg/kg、丙泊酚 1 5mg/kg、阿曲库铵 0 2mg/kg、琥珀胆碱 1 5mg/kg。研究组于诱导前取T9～ 10 椎间隙行硬膜外穿刺置管 ,注入 2 %利多卡因 3～ 4ml,测定麻醉平面后给追加量 ,麻醉平面控制在T4平面以下。间断静注咪唑安定、芬太尼和阿曲库铵并吸入 0 5 %～ 1%异氟醚维持麻醉。于麻醉前、切皮后 10分钟、切皮后 1小时、术毕时采外周静脉血测定血清皮质醇、血管紧张素 Ⅱ (A Ⅱ )、白细胞介素 6 (IL 6 )的浓度 ;记录循环指标、全麻药用量及术中知晓、术后躁动情况。结果　研究组血清皮质醇、A Ⅱ浓度在手术 1小时、术毕时明显低于对照组 (P <0 0 5 ) ;两组间血清IL 6水平无显著性差异。研究组术毕时HR明显低于对照组 (P <0 0 5 ) ,术中SBP、DBP明显低于对照组 (P <0 0 5和P<0 0 1)。 30例病人术毕血清IL 6浓度与手术时间呈正相关 (r =0 5 7,P <0 0 5 )。研究组全麻药用量和术后躁动例数低于对照组 ,而术中知晓例数高于对照组     

乳腺癌病人围手术期红细胞补体受体Ⅰ活性及丙二醛水平的变化

目的　了解乳腺癌病人围手术期红细胞免疫状态及丙二醛 (MDA)的变化。方法　 30例病人随机分成静吸复合全麻 (A)组和高位硬膜外阻滞 (B)组 ,分别于麻醉前、麻醉后、手术中和术后1天、3天及 5天取静脉血测定红细胞补体受体Ⅰ活性 (CR Ⅰ )和MDA水平。结果　A组麻醉后、术中、术后 1天及 3天RBC C3 bRR、RBC CaR及RFER均比麻醉前明显下降 (P <0 0 5或P <0 0 1) ,B组仅在术中及术后 1天明显下降 (P <0 0 5 )。两组在各同一时点相比 ,A组麻醉后较B组低 (P <0 0 5 )。RFIR和MDA在A组麻醉后、术中、术后 1天及 3天均明显高于麻醉前 (P <0 0 5或P <0 0 1) ,B组也在术中及术后 1天明显高于麻醉前 (P <0 0 5 )。两组病人术后 5天CR Ⅰ和MDA均恢复到麻醉前水平。结论　乳腺癌病人围手术期红细胞免疫功能受到明显抑制 ,静吸复合全麻影响大于高位硬膜外阻滞 ,并且与红细胞免疫调节功能紊乱及血浆MDA水平有关。     

全麻—硬膜外联合麻醉对内分泌及循环功能的影响

目的　观察全麻联合硬膜外阻滞在上腹部手术时对循环和内分泌功能的影响。方法3 0例择期上腹部手术患者随机分成两组 :A组全麻联合硬膜外组 ;B组单纯全麻。连续监测血压、心率及SpO2 。分别于麻醉前、插管后 2分钟、进腹探查时、术中 2小时和拔管后抽取静脉血测定血浆肾上腺素、皮质醇、血糖和胰岛素值。结果　A组血压、心率均较B组稳定 (P <0 0 5 )。A组麻醉前后内分泌各测定值无明显变化 ,而B组则显著升高 (P <0 0 1)。结论　全麻联合硬膜外阻滞在上腹部手术时对循环和内分泌影响小 ,是一种可行的麻醉方法。     

全麻复合胸段硬膜外阻滞用于老年病人食管癌手术的观察

目的　观察全麻复合胸段硬膜外阻滞用于老年病人食管癌手术的临床效果。方法　5 4例择期行食管癌根治术老年患者 ,随机分单纯全麻 (A)组和硬膜外复合全麻 (B)组 ,每组 2 7例。不同时间点采静脉血测定胰岛素、皮质醇、肾上腺素和血糖浓度。结果　两组术中血皮质醇、血糖浓度均升高 ,切皮后 12 0min时均达高峰 ,B组低于A组 (P <0 0 5 )。术中血胰岛素水平亦呈上升趋势 ,肾上腺素水平A组明显高于B组 (P <0 0 5 )。MAP、HR于切皮后 4 5min及 6 0minA组显著升高 ,拔管时达高峰 ;同期B组无明显波动。结论　静脉全麻复合硬膜外阻滞用于老年人食管癌根治手术 ,应激反应小 ,全麻药用量和术后躁动减少 ,病人恢复快。     

TVP术中血糖、电解质等监测对预防TURS的临床意义

目的　了解经尿道前列腺电汽化术 (TVP)中血糖、电解质改变。方法　随机选择老年轻比重脊麻下TVP手术 6 0例 ,麻醉中观察并记录术前、术中 30、6 0分钟及术后血糖、电解质 (Na+ 、K+ 、Cl-)、血气 (HCO-3 、PaCO2 、pH)、Hb、BUN、Hct等。结果　血糖术中 30、6 0分钟及术后与术前值比较均显著增高 (P <0 0 1)。而且 6 0分钟与 30分钟比较血糖有明显上升 (P <0 0 1)。术后与术中6 0分钟比较血糖又有明显升高 (P <0 0 1)。血钠 30分钟与术前比较无明显差异 (P >0 0 5 ) ,但 6 0分钟时与术前比较血钠有显著降低 (P <0 0 5 ) ,术后与术前比较下降非常显著 (P <0 0 1)。结论　TVP手术仍有灌洗液吸收和血液稀释 ,术中应作血糖及电解质监测。     

Continuous intra- and postoperative thoracic epidural analgesia attenuates brain natriuretic peptide release after major abdominal surgery

We investigated whether blocking afferent nociceptive inputs by continuous intra- and postoperative thoracic epidural analgesia (TEA) would decrease plasma concentrations of brain natriuretic peptide (BNP) in patients who were at risk for, or had, coronary artery disease. Twenty-eight patients undergoing major abdominal surgery received either general anesthesia supplemented with a continuous thoracic epidural infusion of 1.25 mg/mL bupivacaine and 1 microg/mL sufentanil (n = 14; TEA) or general anesthesia followed by IV patient-controlled analgesia (n = 14; IV PCA). Visual analog scale pain scores, hemodynamics, plasma catecholamines, cardiac troponin T, atrial natriuretic peptide (ANP), and BNP were serially measured preoperatively, 90 min after skin incision, at arrival in the intensive care unit, and in the morning of the first, second, and third postoperative day. Dynamic visual analog scale scores were significantly less in the TEA group. TEA reduced the postoperative heart rate without affecting other hemodynamic variables. Plasma epinephrine increased perioperatively in both groups but was significantly lower in the TEA group. Baseline ANP and BNP concentrations were similar between groups (TEA 3.4 +/- 1.8 and 27.0 +/- 12.3 pg/mL; IV PCA 3.1 +/- 2.0 and 25.9 +/- 13.0 pg/mL, respectively). ANP and BNP increased perioperatively in both groups, with significantly lower postoperative BNP levels in TEA patients (TEA 92.1 +/- 31.9 pg/mL; IV PCA 161.2 +/- 44.7 pg/mL). No such difference was observed in plasma ANP concentrations. Plasma cardiac troponin T concentrations were within normal limits in both groups at all times. We conclude that continuous perioperative TEA using local anesthetics and opioids attenuated the release of BNP in patients undergoing major abdominal surgery who were at risk for, or had, coronary artery disease.     

Effect of thoracic epidural etidocaine 1.5% on somatosensory evoked potentials, cortisol and glucose during cholecystectomy

The effect of thoracic (T7-8) epidural etidocaine 1.5%, 9 ml, and continuous per- and postoperative epidural infusion of etidocaine 1.5%, 4 ml/h, on early (less than 500 ms) somatosensory evoked potentials (SEPs), and cortisol and glucose in plasma during cholecystectomy, was examined in ten patients. Spread of analgesia (pin-prick) was T3 (T1-T3) to L2 (T11-L3) 35 min after injection of etidocaine, and T3 (T2-T4) to T12 (T8-L4) 3 h after surgical incision (median (range)). Before operation, epidural etidocaine had no significant effects on peak-to-peak amplitude of SEPs to electrical stimulation at the L1, T10 or T6 dermatomal level (P greater than 0.09). SEPs were abolished in only two patients at T6, and no patient had SEPs abolished at T10 or L1. The plasma concentrations of cortisol and glucose were significantly increased 20 min after surgical incision and remained increased throughout the study. No correlation was found between the block-induced decrease in the peak-to-peak amplitude at T6 or T10 and increase in plasma cortisol, except for a negative correlation at T10 and the initial increase in cortisol (Rs = 0.72, P = 0.03). In conclusion, thoracic epidural administration of 9 ml of etidocaine 1.5% does not provide total afferent somatic blockade assessed by SEP and the stress response to cholecystectomy.     

地氟醚对内皮素、前列腺素和血栓素的影响

目的：观察地氟醚对上腹手术患者血浆中内皮素（ET）、6酮－前列腺素1a(6-keto-PGF1a）和血栓素B2（TXB2）的影响。方法:随机选取ASAI－II级择期上腹部手术患者10例,全麻诱导气管插管后吸入1MAC的地氟醚维持麻醉。于麻醉前、诱导后、吸入地氟醚10分钟、吸入地氟醚50分钟及手术结束时抽取静脉血,采用放免法测定血浆中ET、6-keto-PGF1a和TXB2的含量。结论：术中ET虽有升高,但无统计学意义。6-keto-PGF1a在诱导后显著降低（P＜0.01）,吸入地氟醚后开始升高（P＜0.01）直至术毕。TXB2在诱导后显著降低（P＜0.01）,吸和地氟醚后逐渐恢复,但仍显著低于术前水平（P＜0.05）。6-keto-PGF1a与TXB2的比值在诱导后及吸入地氟醚后显著增大（P＜0.05及P＜0.01）。结论：吸入1MAC地氟醚时,血浆前列腺素水平增加,血栓素降低,二者比值增加有助于保护心血管功能。     

The Modifying Effect of Spinal Anaesthesia on Intra- and Postoperative Adrenocortical and Hyperglycaemic Response to Surgery

Plasma cortisol and glucose were measured in 24 patients undergoing abdominal hysterectomy during spinal anaesthesia with 0.5% hyperbaric tetracaine or neurolept anaesthesia. The sensory level of analgesia to pinprick extended to at least T4 before skin incision in the spinal group. The mean sensory analgesic level regressed almost linearly, reaching the fourth lumbar segment 4 h after incision. Plasma cortisol and glucose measurements from before to 9 h after skin incision showed significant increases in both parameters during and after surgery. Plasma cortisol and glucose levels were significantly lower during and immediately after surgery in the spinal group, but later postoperatively the mean levels were similar in the two groups. The increase in plasma cortisol 1 h after skin incision in the spinal group correlated to the segmental level of analgesia at that time (r = 0.77, P less than 0.01) and a similar correlation was found with regard to plasma glucose changes (r = 0.60, P less than 0.05). The regression lines showed that maintenance of a sensory analgesic level about the fourth thoracic segment prevented the adrenocortical and hyperglycaemic response to surgery. These findings are in accordance with the anatomical assumption that the upper segmental level of visceral afferent input to the spinal cord is about the fourth thoracic segment. Our results further demonstrate that the inhibitory effect of spinal anaesthesia on the stress response to surgery is transient, and correlates to the regression of sensory analgesia.     

胸段硬膜外复合静脉全麻与全凭静脉麻醉在开胸手术中的比较

目的 比较胸段硬膜外复合静脉全麻与全凭静脉麻醉对开胸手术患者血流动力学、麻醉药维持剂量、术后苏醒、躁动及疼痛的影响.方法 64例择期行剖胸手术患者,ASA Ⅱ级～Ⅲ级,采用完全随机设计的方法分为2组.A组:胸段硬膜外复合静脉全麻组,患者预先用10 ml 0.25%布比卡因和0.1 mg芬太尼硬膜外给药.术中硬膜外0.25%布比卡因和芬太尼10μg/ml,5 ml/h复合丙泊酚维持.B组:全凭静脉麻醉组,丙泊酚-端芬太尼全凭静脉麻醉.观察并记录不同时间点2组心率(HR)、平均动脉压(MAP)、中心静脉压(CVP)、所需麻醉维持药量、术毕清醒及出现疼痛时间.结果 2组患者各观察点血流动力学变化比较,差异无统计学意义;胸段硬膜外复合静脉全麻组麻醉维持不需要静脉镇痛药瑞芬太尼和肌松药阿曲库铵,只需复合充分的丙泊酚镇静,就能满足手术需求;术后苏醒早;拔管时间(11±4)min,相对于全凭静脉麻醉组(23±16)min明显缩短(P<0.05):躁动例数显著减少;术后出现疼痛时间(7.4±2.6)min相对于全凭静脉麻醉组(0.5士0.3)min明显延长(P<0.01).结论 胸段硬膜外复合静脉全麻用于开胸手术快通道麻醉是一种安全、经济、有效并有利于患者术后恢复的麻醉方法.     

腹腔镜结直肠癌手术对机体生理应激反应的研究

目的探讨腹腔镜结直肠癌手术与传统开腹手术对围手术期机体生理应激变化的影响。方法选择2008年5月至2010年8月收治的结直肠癌患者86例,分为腔镜组40例,开腹组46例。比较两组围手术期皮质醇、白细胞、血糖、血小板变化。结果两组患者术前各指标检测值比较无统计学意义。两组术后皮质醇明显升高(P0.05),术后3d开腹组升高明显大于腔镜组(P0.05),术后8d两组均恢复到术前水平;两组白细胞较术前明显升高,术后1d开腹组比同期腔镜组升高明显(P0.05),随后两组逐渐恢复到术前水平。两组术后血糖均明显高于术前水平(P0.05),随后逐渐下降,术后1d腔镜组升高小于开腹组有统计学意义(P0.05)。两组术后1d血小板明显降低,术后8d两组均恢复到术前,且同时期腔镜组升高明显快于开腹组(P0.05)。结论腹腔镜结直肠癌手术对机体术后应激反应轻于传统开腹手术。     

Effectiveness of morphine via thoracic epidural vs intravenous infusion on postthoracotomy pain and stress response in children

BACKGROUND: Thoracotomy causes severe pain in the postoperative period. The aim was to evaluate effectiveness of two pain treatment methods with morphine on postthoracotomy pain and stress response. METHODS: Thirty-two children undergoing major thoracotomy for noncardiac thoracic surgery were allocated to receive either single dose of thoracic epidural morphine 0.1 mg x kg(-1) in 0.2 ml x kg(-1) saline (TEP group, n = 16) or morphine infusion at 0.02 mg x kg(-1) h(-1) (INF group, n = 16) following bolus dose of 0.05 mg x kg(-1) postinduction. Pain and sedation scores and incidence of complications were recorded for 24 h and cortisol, blood glucose, insulin and morphine serum levels were evaluated following induction, 1, 8, 12, and 24 h after initial morphine administration. RESULTS: Five patients in TEP and one in INF required rescue morphine. The cortisol, insulin and blood glucose increased during the study and returned to normal levels at 24th hour (P < 0.05), similarly in both groups (P > 0.05). The morphine levels were variable within and between groups (P < 0.05). A common complication was nausea and vomiting with both the techniques (P > 0.05). CONCLUSION: Single dose TEP morphine offers no advantage over INF for pain treatment for thoracotomy in children and neither technique provided suppression of stress hormones in the first 24 h postoperatively.     

Roux-en-Y吻合重建对胃窦癌合并T2DM患者血糖及胰岛功能的影响

目的:探讨Roux-en-Y吻合重建术对胃窦癌合并2型糖尿病(T2DM)患者血糖水平、胰岛功能及术后生存质量的影响。方法:选取2010年1月—2014年1月收治的68例I~II期胃窦癌合并T2DM患者为研究对象,根据患者手术方式将其分为胃十二指肠吻合组(对照组)32例,Roux-en-Y吻合重建组(观察组)36例,对比分析2组患者术前、术后6个月体质量指数(BMI)、空腹血糖(FPG)、糖化血红蛋白(Hb A1c)、空腹胰岛素(FINS)、空腹C肽(FCP)水平。术前、术后6个月对2组患者行口服葡萄糖耐量试验(OGTT),检测及比较2组餐后2h血糖(2h FPG)、餐后2 h胰岛素(2h INS)及餐后2 h C肽(2h CP),计算2组胰岛素抵抗指数(HOMA-IR)。术前及术后6个月采用肿瘤生存质量量表(QOL)对2组患者生存质量进行评价。结果:对照组术后6个月BMI、FPG、Hb A1c、FINS、FCP、2h FPG、2h INS、2h CP、HOMA-IR与术前相比差异无统计学意义(P0.05)。观察组术后6个月FPG、Hb A1c、2h FPG、HOMA-IR水平显著低于术前,而FINS、FCP、2h INS、2h CP较术前显著升高(P0.05)。术后6个月观察组食欲、睡眠、自理能力、心理能力、疾病认识以及总生存质量评分均高于对照组(P0.05)。结论:Roux-en-Y吻合术能有效提高胃窦癌合并T2DM患者胰岛β细胞功能,降低血糖水平,提高患者生存质量。     

体外循环缺血—再灌注后心肌胰岛素抵抗现象的初步研究

目的 求证体外循环缺血－再灌注后存在心肌胰岛素抵抗现象的假设。方法 12条雄性杂种狼犬,按体外循环升主动脉阻断时间的不同分为两组,组I（n=6);主动脉阻断25分钟：组Ⅱ（n=6);主动脉阻断150分钟、分别于转流前、主动脉开放后10分钟、30分钟和60分钟测定冠状静脉窦血流量和血流动力学,并同时采集动脉和冠状静脉窦血测定血浆葡萄糖、乳酸、胰岛素、C肽、胰高血糖素、皮质醇和生长激素浓度的动态变化。结果 缺血－再灌注后血浆葡萄糖、乳酸、胰岛素、C肽、胰高血糖素、皮质醇和生长激素浓度与转流前比较均有不同程度的明显增高,再灌注10－30分钟达峰值（Ｐ＜０．０５）,同时心肌对葡萄糖的摄取、利用有严重障碍。与组１比较,组Ⅱ上述系列化指标均明显增高,且心肌葡萄糖摄取、利用障碍持续时间更长,停机后心功能明显下降。结论 在体外循环缺血－再灌注机体胰岛素抵抗同时,亦存在明显的心肌胰岛素抵抗现象,其程度随体外循环时间延长而增强,并与心功能障碍的发生密切有关。