腹腔镜肝癌切除术28例报告

目的探讨腹腔镜肝癌切除术的适应证和可行性。方法回顾性分析2002年3月至2007年10月完成的腹腔镜肝癌切除术28例患者临床资料。结果28例均成功在腹腔镜下完成手术。对于位于肝左外叶的肿瘤，选择规则性肝左外叶切除术；肿瘤位于肝脏边缘或右肝表面时，选择肝脏不规则切除术。平均手术时间95min（60～150min）。平均术中出血345ml（50～800ml）。切除标本最大体积11cm×9cm×7cm。患者术后24h均能下床活动，术后2～3d即能进食。术后平均住院时间8d（5～15d）。术后病理诊断为原发性肝细胞癌24例，结直肠癌肝转移4例。结论对位于肝脏边缘、右肝表面或者左肝外叶的肝癌行腹腔镜肝癌切除术是安全可行的。     

腹腔镜肝切除术11例临床报告

目的:探讨腹腔镜肝切除术的适应证和可行性。方法:回顾分析10例病灶位于肝脏边缘及左肝外叶(Ⅱ～Ⅵ段)及1例位于Ⅷ段的肝占位患者的临床资料。其中原发性肝细胞癌8例,肝海绵状血管瘤2例,胆管细胞癌1例,肝功能Child-Pugh评分A级9例,B级2例;AFP(+)7例;位于左肝外叶实质中的肿瘤,行规则性左肝外叶切除;位于肝脏边缘或右肝表面的肿瘤,行肝脏局部切除。结果:11例均成功完成腹腔镜肝切除术,无中转开腹。其中局部切除术7例,左肝外叶切除术4例,腹腔镜脾切除+胆囊切除术2例。平均手术时间105min,术中平均出血220ml,切除病灶最大直径10cm。全部肿瘤均完整切除,肿瘤包膜完整,无破裂。术后未发生胆漏和出血等并发症,恢复良好,术后平均住院8.5d。结论:位于肝脏边缘、右肝表面或左半肝(Ⅱ～Ⅵ段)的肝脏占位,行腹腔镜肝切除术是安全可行的。     

腹腔镜肝癌切除术15例报告

目的探讨腹腔镜肝癌切除的可行性与适应证. 方法 1998年8月～2004年9月采用多功能手术解剖器(Peng's multifunctional operative dissector,PMOD)刮吸法断肝技术对15例肝癌行腹腔镜肝癌切除术. 结果 14例腹腔镜肝癌切除术成功,1例因术中出血中转开腹肝癌切除术.腹腔镜肝癌切除术手术时间60～240 min,平均125 min.术中出血量50～2 000 ml,平均501 ml.切除肝脏最大体积10 cm×9 cm×7 cm.术后无并发症发生.术后24 h均能下床活动,术后1～3 d即能进食.术后住院5～10 d,平均6.5 d. 结论对位于肝脏边缘、右肝表面或左半肝的恶性肿瘤,采用PMOD行腹腔镜肝癌切除是可行和安全的.     

完全腹腔镜下肝部分切除治疗体会

目的探讨腹腔镜肝部分切除术的适应证、可行性及手术操作技术。方法回顾分析2009年7月至2009年12月在我院行腹腔镜部分肝切除9例患者的临床资料。其中原发性肝细胞肝癌5例,直肠癌肝转移瘤1例,肝海绵状血管瘤1例,肝内胆管结石2例,肝功能Child-Pugh评分均在B级以上。位于左半肝实质中的肿瘤及左半肝肝内胆管结石,行规则性左半肝切除;位于肝脏边缘或右肝表面的肿瘤,行肝脏局部切除。结果 8例成功完成腹腔镜肝切除术,其中局部切除术1例,左肝外叶切除术5例,左半肝切除术2例。1例因术中出血较多(800ml)而中转开腹手术。平均手术时间(173±52)min,术中平均出血(402±91)ml,切除病灶最大直径8cm。全部患者肿瘤均完整切除,肿瘤包膜完整。术后未发生明显胆漏和出血等并发症,患者恢复良好,术后平均住院(8.3±3.2)d。结论位于肝脏边缘、右肝表面或左半肝的肝脏占位或肝内胆管结石,在充分掌握适应证及相应的手术操作技巧的基础上,行腹腔镜肝切除术是安全可行的。     

手辅助腹腔镜肝癌切除术的临床应用

目的探讨手助腹腔镜下肝癌切除的适应症及临床效果。方法经L apd isc辅助腹腔镜下完成11例肝癌切除,其中男7例,女4例,年龄36~62岁,平均年龄58.8±8.4岁,原发性肝癌8例,肝转移癌3例。结果所有病人手助腹腔镜下均顺利切除病灶,无中转开腹手术,其中右肝部分切除8例,左肝部分切除1例,左肝外叶切除2例。手术时间65~270 m in,平均180.5±55.6m in,出血量100~1100 m l,平均320.5±46.8 m l,切除肿瘤体积2×3×2~10×8×7 cm3。无胆漏、腹腔出血及感染等术后并发症,住院时间4~18 d,平均8.8±2.3 d。随访3~13 m on,8.5±3.4 m on,无远期并发症。结论手助腹腔镜下肝癌切除安全可行,可作为肝癌切除的新方法。     

腹腔镜肝切除术中出血的处理

目的探讨腹腔镜肝切除术中出血的处理方法。方法对22例肝脏病变实施腹腔镜肝切除术。其中原发性肝癌5例,肝血管瘤16例,肝转移癌1例。15例肿瘤位于左外叶,1例位于肝尾状叶,2例位于第Ⅳ段,4例位于肝脏第Ⅵ段;肿瘤平均直径为4 cm（2～10 cm）。手术方式包括腹腔镜肝左外叶切除术15例,不规则肝部分切除术6例,肝尾状叶左半切除术1例。结果 22例均在腹腔镜下完成手术,无中转开腹,无手术死亡。平均手术时间为115 min（65～142 min）,平均术中出血量为450 mL（270～780 mL）,平均术后住院时间为6.5 d（3～11 d）。结论控制肝脏断面出血是腹腔镜肝切除术的技术关键。     

肝脏良恶性肿瘤行腹腔镜解剖性肝左外叶切除术的初步经验

目的 初步总结肝脏良恶性肿瘤行腹腔镜解剖性肝左外叶切除的安全性及疗效.方法 2005年4月至2008年5月共对11例肝脏良恶性肿瘤患者行腹腔镜下解剖性肝左外叶切除术(男性7例、女性4例,平均年龄51.7岁).其中原发性肝癌4例,伴不周程度肝硬化;结肠癌术后转移性肝癌1例;肝血管瘤5例(2例合并胆囊结石同时切除胆囊);巨大肝血平滑肌脂肪瘤1例.肿瘤最大径2.1～12.0 com,平均5.8cm,所有肿瘤均位于肝左外叶(Ⅱ、Ⅲ段).结果 手术时间为120～180 min,平均147 min.无中转开腹手术病例,无输血,无手术并发症.术后平均住院5.9 d.结论 对于位于Ⅱ、Ⅲ段的肝脏肿瘤施行腹腔镜下肝左外叶切除术是安全的.     

腹腔镜选择性门静脉结扎术在二期肝癌肝切除术中的应用

目的 探讨腹腔镜选择性门静脉结扎术在二期肝癌肝切除术中的临床应用价值.方法 回顾性分析2009年3月至2012年2月四川省人民医院收治的23例无法一期手术切除的原发性肝癌患者的临床资料.先行腹腔镜选择性门静脉结扎术,术后3～4周,经CT检查了解各肝叶体积及预计肝切除体积的动态变化,评估肝癌可切除性后再行二期开腹肝癌肝切除术.组间比较采用方差分析,两两比较采用q检验(方差不齐数据行对数转换).结果 选择性门静脉结扎术:23例患者均行门静脉右支结扎,其中22例于腹腔镜下成功结扎门静脉右支(2例因暴露门静脉右支困难,同时行胆囊切除),1例患者因分离门静脉时出血,中转开腹行门静脉右支结扎.3例多发肿瘤患者行腹腔镜选择性门静脉结扎后1周加行TACE,其中2例行右半肝切除+健侧肝脏肿瘤RFA治疗.23例患者术后出现不同程度的肝区隐痛不适、低热、恶心、呕吐等非特异性反应,无腹腔出血、胆汁漏、肝脓肿等并发症发生;术后出现程度不同的肝功能损害,术后1周AST、ALT和TBil恢复至术前水平.术后右半肝体积逐渐缩小,术后3周患者右半肝体积为(590 ± 154) cm3,较术前(698±135)cm3明显缩小,术前与术后右半肝体积比较,差异有统计学意义(F=15.62,P＜0.05);术后3周左半肝体积为(408±149) cm3,较术前(331±68) cm3增生,术前与术后左半肝体积比较,差异有统计学意义(F=17.48,P＜0.05);预计肝切除体积占全肝体积百分比由术前的67％±15％缩小至术后3周时的60％±18％,术前与术后1、2、3周预计肝切除体积占全肝体积百分比比较,差异有统计学意义(F=12.35,P＜0.05).二期肝癌肝切除术:经CT检查评估后,23例患者中,2例因左半肝增生不明显、2例因术后(其中1例患者术前健侧肝脏发现转移癌)3周出现广泛肝内转移失去手术机会,2例失访,3例主动放弃二期肝癌肝切除术,14例在腹腔镜选择性门静脉结扎术后2～4周行二期肝癌肝切除术.手术切除率为60.9％(14/23).其中扩大右半肝切除2例、右半肝切除8例、不规则右半肝切除4例.二期肝癌肝切除术后患者恢复良好,无肝衰竭、严重腹腔积液、腹腔内感染等严重并发症发生,康复出院.结论 腹腔镜选择性门静脉结扎术治疗后预留剩余肝脏增生,使部分肝癌患者获得二期手术机会,且二期肝癌肝切除术后患者恢复良好.     

完全腹腔镜肝切除时出血问题的探讨

目的　探讨腹腔镜肝切除手术的出血原因和预防措施。　方法　 2 1例中包括原发性肝癌 13例、肝血管瘤 3例、肝脓肿 2例、肝囊肿伴感染、局灶结节性增生、肝脏腺瘤各 1例。肝功能Child分级 :A级 16例 ,B级 5例 (均为肝癌病人 )。　结果　 2 1例在全气腹条件下完成腹腔镜肝切除手术 ,包括肝局部切除 12例 ,左肝解剖性切除 9例。手术时间 80～ 32 0 (平均 193 8± 78 3)min ,出血量 10 0～ 10 0 0ml (平均 333 1± 2 91 4 )ml,有 2例出血 10 0 0ml,术中输血各 80 0ml。术后恢复顺利 ,术后平均住院时间 6 3± 1 5d ,术后恢复时间较常规开腹方法肝切除患者明显缩短。　结论　本组研究表明在现有的手术器械条件和不阻断肝门血流的情况下 ,可以安全方便地处理术中出血。腹腔镜肝切除微创手术的前景广阔 ,不仅适于对肝良性肿瘤的手术 ,也为肝脏恶性肿瘤患者提供了切除肿瘤的新途径     

完全腹腔镜规则性肝切除的解剖基础与技术问题

目的探讨腹腔镜规则性肝切除的解剖基础与技术问题。方法 2 0 0 2年 7月至2 0 0 2年 11月 ,治疗原发病灶位于左半肝但未侵及左肝门的原发性肝癌 4例、肝血管瘤 2例、肝囊肿伴感染 1例。肝切除步骤包括显露第 1肝门 ,游离肝周韧带 ,解剖并离断 2、3级肝门 3管 ,解剖第 2肝门并夹闭肝左静脉 ,离断肝实质和切断肝左静脉。结果 7例完全在腹腔镜下完成手术 ,左半肝切除 2例、左外叶切除 4例、肝方叶切除 1例。均成功地在矢状部对 2至 3级肝门的 3管进行解剖和离断。手术时间为 15 0～ 32 0min ,平均 (2 5 3± 5 9)min。出血量 2 0 0～ 10 0 0ml,平均 (4 5 0± 2 6 1)ml。结论腹腔镜规则性左肝切除术是安全可行的 ,对 2级肝门 3管的解剖和离断是行肝段或左半肝切除时控制出血的关键。     

Vasopressor hormone response following mesenteric traction during major abdominal surgery

Background : We investigated the vasopressor hormone response following mesenteric traction (MT) with hypotension due to prostacyclin (PGI₂) release in patients undergoing abdominal surgery with a combined general and epidural anesthesia. Methods : In a prospective, randomized, placebo-controlled study we administered 400 mg ibuprofen (i.v.) in 42 patients scheduled for abdominal surgery. General anesthesia was combined with epidural anesthesia (T4-L1). Before as well as 5, 15, 30, 45, and 90 min after MT we recorded plasma osmolality, hemodynamics and measured 6-keto-PGFlα (stabile metabolite of PGI₂), TXB₂ (stabile metabolite of thromboxane A₂) active renin, and arginine vasopressin (AVP) plasma concentrations by radioimmunoassay. Catecholamine levels were assessed by high-pressure liquid chromatography (HPLC) with electrochemical detection. Results : Following MT, arterial hypotension occurred along with a substantial PGI₂ release. This was completely abolished by ibuprofen administration. Although plasma levels of 6-keto-PGF_1α (1133 (708) vs. 60 (3) ng/L, median (median absolute deviation), P=0.0001, placebo vs. ibuprofen) remained significantly elevated, blood pressure was restored within 30 min after MT in the placebo group. At the same point in time plasma concentrations of TXB² (164 (87) vs. 58 (1) ng/L, P=0.0001), epinephrine (46 (33) vs. 14 (6) ng/L, P=0.001), AVP (41 ± (18) vs. 12 (7) ng/L, P=0.0004), and active renin (27 (12) vs. 12 (4) ng/L, P = 0.001) were significantly higher in placebo-treated patients. Conclusion : Under combined general and epidural anesthesia arterial hypotension following MT due to endogenous PGI₂ release is associated with enhanced release of AVP, active renin, epinephrine and thromboxane A₂, presumably contributing to hemodynamic stability within 30 min after MT.     

A Teaspoon Pump for Pumping Blood with High Hydraulic Efficiency and Low Hemolysis Potential

Abstract: Virtually all blood pumps contain some kind of rubbing, sliding, closely moving machinery surfaces that are exposed to the blood being pumped. These valves, internal bearings, magnetic bearing position sensors, and shaft seals cause most of the problems with blood pumps. The original teaspoon pump design prevented the rubbing, sliding machinery surfaces from contacting the blood. However, the hydraulic efficiency was low because the blood was able to "slip around" the rotating impeller so that the blood itself never rotated fast enough to develop adequate pressure. An improved teaspoon blood pump has been designed and tested and has shown acceptable hydraulic performance and low hemolysis potential. The new pump uses a nonrotating "swinging" hose as the pump impeller. The fluid enters the pump through the center of the swinging hose; therefore, there can be no fluid slip between the revolving blood and the revolving impeller. The new pump uses an impeller that is comparable to a flexible garden hose. If the free end of the hose were swung around in a circle like half of a jump rope, the fluid inside the hose would rotate and develop pressure even though the hose impeller itself did not "rotate"; therefore, no rotating shaft seal or internal bearings are required.     

A comparison of the inhibitory effects of four volatile anaesthetics on the metabolism of chlorzoxazone, a substrate for CYP2E1, in rabbits

Background: Halothane inhibits in vitro and in vivo activity of cytochrome P-450 (CYP) 2E1. There are several fluorinated volatile anaesthetics besides halothane, and most of them are defluorinated by CYP2E1. It is unclear whether other fluorinated anaesthetics inhibit the in vivo activity of CYP2E1.
Methods: We compared the inhibitory effects of therapeutic concentrations of four inhalational anaesthetics, halothane, enflurane, isoflurane, and sevoflurane, on chlorzoxazone metabolism in rabbits receiving artificial ventilation.
Results: All four inhalational anaesthetics decreased arterial blood pressure and increased plasma chlorzoxazone concentration. However, no significant differences in the plasma chlorzoxazone concentration were found between the four anaesthetics. The estimated chlorzoxazone clearance increased after beginning inhalation with all four agents, but no significant difference in clearance was noted between agents.
Conclusions: At therapeutic concentrations, the in vivo inhibitory effect on chlorzoxazone metabolism was similar for all four inhalational anaesthetics examined, even though their chemical characteristics and extent of hepatic metabolism differ considerably.     

Microspheres Based Detoxification System: A New Method in Convective Blood Purification

Abstract: A variety of protein-bound or hydrophobic substances, accumulating as a result of pathologic conditions such as exogenous or endogenous intoxications, are removed poorly by conventional detoxification methods because of low accessibility (hemodialysis), insufficient adsorption capabilities (hemosorption), low efficiency (peritoneal dialysis), or economic limitations (high-volume plasmapheresis). Combining advantages of existing methods with microspheric technology, a module-based system was designed. Major operating parameters of the latter can be modified to allow for adjustment to individual clinical situations. An extracorporeal blood circuit including a plasmafilter is combined with a secondary high-velocity plasma circuit driven by a centrifugal pump. Different microspheric adsorbers can be combined in one circuit or applied in sequence. Thus, a prolonged treatment can be tailored using specially designed selective adsorber materials. Comparing this system with existing methods (high-flux hemodialysis, molecular adsorbent recycling system), results from our in vitro studies and animal experiments demonstrate the superior efficiency of substance removal.     

Tissue perfusion in relation to cardiac output during continuous positive-pressure ventilation and administration of propranolol or verapamil

Background : Our objective was to determine whether administration of propranolol or verapamil modifies the hemodynamic adaptation to continuous positive-pressure ventilation (CPPV), in particular the regional distribution of cardiac output (CO).
Methods : General hemodynamics and regional blood flows assessed by microsphere technique (15 (μm) were recorded in 16 anesthetized pigs during spontaneous breathing (SB) and CPPV with 8 cm H₂O end-expiratory pressure (CPPV8) before and after intravenous administration of propranolol (0.3 mg · kg⁻¹ followed by 0.15 mg · kg⁻¹ · h⁻¹, n=8) or verapamil (0.1 mg · kg⁻¹ followed by 0.3 mg · kg⁻¹ · h⁻¹, n=8).
Results : CPPV8 depressed CO by 25% without shifts in its relative distribution with the exception of a noteworthy increase in adrenal perfusion. Propranolol increased arterial blood pressure, and due to a fall in heart rate, CO dropped by 25%. The kidneys and, to a lesser extent, the splanchic region and central nervous system received increased fractions of the remaining CO at the expense of skeletal muscle flow. Similar patterns were seen during SB and CPPV8 such that the combination of propranolol and CPPV8 depressed CO by 50%. The circulatory effects of verapamil were less evident but myocardial perfusion tended to increase.
Conclusions : The combination of propranolol or verapamil with CPPV does not result in any specific hemodynamic interaction in anesthetized pigs, except that the combined effect of propranolol and CPPV may severely reduce CO.     

Bariatric Surgery in Some "Central and East-European (former Eastern bloc)"Countries - Current Status and Prediction for the Next Millennium

Background: Obesity is increasing globallly, including in the formerly "Eastern Bloc" countries. Methods: A survey was made of obesity and bariatric surgery. Results: In the 8 East and Central European countries studied, with total population 300 million, roughly 43% of the population was overweight (BMI 25-30), 23% obese (BMI > 30), with about 15 million people morbidly obese (BMI > 40). From 0-10 morbidly obese individuals/100,000/year undergo bariatric surgery. Conclusion: Most countries were found to provide inadequate treatment for obesity.The majority of the morbidly obese are not treated effectively. However, health-care awareness of obesity and bariatric surgeons are slowly increasing.     

Volatile anaesthetics reduce adhesion of blood platelets under low-flow conditions in the coronary system of isolated guinea pig hearts

Background : Inhibitory effects of volatile anaesthetics on platelet aggregation have been demonstrated in several studies. However, the influence of volatile anaesthetics on intracoronary platelet adhesion has not been elucidated so far.
Methods : Isolated hearts of guinea pigs were perfused with buffer in the absence or presence of volatile anaesthetics (0.5 and 1 MAC) at constant coronary flow rates of 5 ml/min for 25 min, then 1 ml/min for 30 min and again 5 ml/min for 10 min. Before, during and after low-flow perfusion, a bolus of human platelets was applied into the coronary system. To simulate thrombogenic conditions, 0.3 U/ml human thrombin was infused during low-flow perfusion and reperfusion. The number of platelets sequestered to the endothelium was calculated from the difference between coronary in- and output of platelets. The myocardial production of lactate and consumption of pyruvate and coronary perfusion pressure were also determined.
Results : At a flow rate of 5 ml/min only about 3% of the applied platelets did not emerge from the coronary system, in any group. In contrast, 13.1±1.2% (mean±SEM) of infused platelets became adherent in low-flow perfusion in the control group without anaesthetic. The adherence was reduced with each 1 MAC isoflurane (to 6.2±1.2%), sevoflurane (to 4.4±0.9%) or halothane (to 3.2±1.5%) (each P <0.05 vs. control). Volatile anaesthetic, 0.5 MAC, did not inhibit platelet adhesion to a statistically significant extent in any case. Perfusion pressure and metabolic parameters were not statistically different between the control and the hearts exposed to anaesthetics.
Conclusion : Volatile anaesthetics in a concentration of 1 MAC can reduce the adhesion of platelets in the coronary system under reduced flow conditions. This action does not arise from vasodilation or inhibition of ischaemic stress.     

Synergistic interaction between the effects of propofol and midazolam with fentanyl on phrenic nerve activity in rabbits

Background: It has been shown that the depressive effects of both propofol and midazolam on consciousness are synergistic with opioids, but the nature of their interactions on other physiological systems, e. g. respiration, has not been fully investigated. The present study examined the effect of propofol and midazolam alone and in combination with fentanyl on phrenic nerve activity (PNA) and whether such interactions are additive or synergistic. Methods: PNA was recorded in 27 anaesthetised and artificially ventilated rabbits. In three groups, propofol, fentanyl and midazolam were administered intravenously in incremental doses to construct dose-response curves for the depressant effects of each one on PNA. In another two groups, the effect of pretreatment with either fentanyl 1 μg · kg^?1 i. v. or midazolam 0.05 mg · kg^?1 i. v. on the effects of propofol and fentanyl respectively on PNA were studied. Results: Propofol and fentanyl caused a dose-dependent depression of PNA with complete abolition at the highest total doses of 16 mg · kg^?1 i. v. and 32 μg · kg^?1 i. v., respectively. In contrast, midazolam in incremental doses to a total of 0.8 mg · kg^?1 reduced mean PNA by 63%, but approximately 12% of PNA remained at a total dose as high as 6.4 mg · kg^?1. The mean ED₅₀s, calculated from dose-response curves, were 5.4 mg · kg^?1, 3.9 μg · kg^?1 and 0.4 mg · kg^?1 for propofol, fentanyl and midazolam, respectively. Initial doses of either fentanyl 1 μg · kg^?1 i. v. or midazolam 0.05 mg · kg^?1 i. v. acted synergistically with subsequent doses of either propofol or fentanyl to abolish PNA at total doses of 8 mg · kg^?1 and 8 μg · kg^?1, respectively. Conclusion: Fentanyl has a synergistic interaction with both propofol and midazolam on PNA and hence potentially on respiration.     

Influence of dopexamine hydrochloride on haemodynamics and regulators of circulation in patients undergoing major abdominal surgery

Background: Catecholaminergic support is often used to improve haemodynamics in patients undergoing major abdominal surgery. Dopexamine is a synthetic vasoactive catecholamine with beneficial microcirculatory properties. Methods: The influence of perioperative administration of dopexamine on cardiorespiratory data and important regulators of macro- and microcirculation were studied in 30 patients undergoing Whipple pancreaticduodenectomy. The patients received randomized and blinded either 2 μg · kg^?1 · min^?1 of dopexamine (n=15) or placebo (n=15, control group). The infusion was started after induction of anaesthesia and continued until the morning of the first postoperative day. Endothelin-1 (ET-1), vasopressin, atrial natriuretic peptide (ANP), and catecholamine plasma levels were measured from arterial blood samples. Measurements were carried out after induction of anaesthesia, 2 h after onset of surgery, at the end of surgery, 2 h after surgery, and on the morning of the first postoperative day. Results: Cardiac index (CI) increased significantly in the dopexamine group (from 2.61±0.41 to 4.57±0.78 1 · min^?1 · m^?2) and remained elevated until the morning of the first postoperative day. Oxygen delivery index (DO₂I) and oxygen consumption index (VO₂I) were also significantly increased in the dopexamine group (DO₂I: from 416±91 to 717±110 ml/m² · m²; VO₂I: from 98±25 to 157±22 ml/m² · m²), being significantly higher than in the control group. pHi remained stable only in the dopexamine patients, indicating adequate splanchnic perfusion. Vasopressive regulators of circulation increased significantly only in the untreated control patients (vasopressin: from 4.37±1.1 to 35.9±12.1 pg/ml; ET-1: from 2.88±0.91 to 6.91±1.20 pg/ml). Conclusion: Patients undergoing major abdominal surgery may profit from prophylactic perioperative administration of dopexamine hydrochloride in the form of improved haemodynamics and oxygenation as well as beneficial influence on important regulators of organ blood flow.     

Systemic analgesia adapted to the children's condition

A concept of balanced analgesia using nonsteroidal anti-inflammatory drugs (NSAIDs), paracetamol (acetaminophen), opioids, and corticosteroids can also be used in patients with pre-existing illnesses. NSAIDs are the most effective treatment for acute pain of moderate intensity in children; however, these drugs should be avoided in patients at increased risk for serious side effects, e.g. patients with renal impairment, bleeding tendency, or extreme prematurity. NSAIDs can be given with minimal risks to the younger child with mild to moderate asthma, and, in these patients, the use of steroids can be encouraged; in addition to their antiemetic and analgesic action, a beneficial effect on asthma symptoms can be expected. In the non-intubated child with cerebral trauma, exaggerated sedation caused by opioids and increased bleeding tendency caused by NSAIDs must be avoided. In neonates and small infants, the oral administration of sucrose or glucose is helpful to minimize pain reaction during short uncomfortable interventions.