心导管术拔鞘管后应用经皮血管闭合器临床观察

目的　与人工压迫止血比较 ,观察心导管术拔鞘管后应用经皮血管闭合器 (Perclose)止血的疗效及安全性。方法　 189例病人在心导管术后 ,分为人工压迫止血组(95例 ,其中单纯冠脉造影 4 6例 ,行冠脉成形术 4 9例 )和Perclose止血组 (94例 ,其中单纯冠脉造影 2 5例 ,行冠脉成形术 70例 )。观察两组止血时间 ,下床活动时间 ,血管并发症。结果　Perclose止血组与人工压迫止血组相比 ,止血时间 ,下床活动时间明显缩短。Perclose止血组未见血管并发症 ,与人工压迫止血组相比差异有显著性 (P <0 0 1)。应用Per close止血成功率为 98 9%。结论　心导管术拔鞘管后应用经皮血管闭合器 (Perclose) ,缩短了止血时间和下床活动时间 ,并可减少血管穿刺点并发症及病人不适感。     

冠状动脉介入诊疗术后Angio-Seal血管闭合器止血的临床观察

目的 :评价冠状动脉介入诊疗术后 ,应用Angio Seal血管闭合器的安全性、有效性及临床应用价值。方法 :76例经股动脉冠状动脉介入治疗术后 ,立即应用Angio Seal装置闭合动脉穿刺点止血 ,记录止血时间、下肢制动时间及局部血管并发症。结果 :Angio Seal血管闭合成功率为 97 2 % ,止血时间(2 0 4± 1 81)min ,制动时间 (4 17± 2 0 5 )h。 3例术后少量渗血 ,1例术后即刻迷走神经反射。结论 :冠状动脉介入诊疗术后应用Angio Seal血管闭合器止血安全、有效 ,并发症发生率低 ,对高危患者同样适用 ,值得推广应用。     

血管闭合装置在经皮冠状动脉成形术后的应用

目的比较心血管病患者经皮冠状动脉成形术(PCI)后采用经皮血管闭合装置(per-close)止血与人工压迫止血的安全性和疗效。方法280例心血管病患者在行经皮冠状动脉成形术后,分为人工压迫止血组(145例)和per-close止血组(135例),观察2组止血时间、下床活动时间、术后血管并发症等。结果止血组与人工压迫组相比,止血时间与下床活动时间显著缩短,血管并发症明显减少。应用per-close的成功率达95%。结论此研究显示,PCI术后应用经皮血管闭合装置,是一个快速、有效的止血方法,缩短了止血与下床活动时间,并可减少穿刺点并发症发生率及患者不适感。     

经皮血管缝合器的安全性和疗效观察

目的　评估病人拔鞘管后应用经皮血管缝合器与人工压迫止血的安全性和疗效的比较。主要观察终点包括术后可下床走动时间与血管并发症。方法　 10 5例病人 (男、80例 ;女 2 5例 ,平均年龄 65 .7± 12 .3岁 )在行心导管术后 ,随机分为人工压迫组 ( 组 ,5 3例 )和股动脉穿刺点经皮血管缝合器组 ( 组 ,5 2例 ) ,在术后即刻应用经皮血管缝合器和依病人抗凝水平行人工压迫止血 ,观察止血时间、下床走动时间和并发症。结果　应用经皮血管缝合器组与人工压迫组止血时间 ( 7.5± 3.0和 19.5± 6.5分 ,P<0 .0 0 1)与下床走动时间 ( 4.5± 2 .0和 16.5± 5 .0小时 ,P<0 .0 0 1)有显著缩短 ,血管并发症 (有 6人伤口渗血和血肿 >4cm, 组 7.5 % ( 4/ 5 3) , 组 3.8% ( 2 / 5 2 ) ,两组无显著差异。有 4例病人首次应用缝合器止血失效 ,因为病人的缝合血管周围病变及皮肤组织凹陷 ,有一例缝合管拆除时缝合线断接 ,首次成功率达 94% ( 48/ 5 2 ) ,失败两例再用缝合器缝合获得成功 ,总成功率达 96% ( 5 0 /5 2 )。在 组有 1例病人在血管成形术 3天后出现再次急性心肌梗死 ,给予静脉 (尿激酶 )溶栓后于穿刺伤口再出血而需压迫止血 1小时。结论　表明经皮血管缝合器应用的安全性优于人工压迫组 ,缩短了止血与下床走动时间     

经皮血管缝合器与人工压迫法对股动脉拔管术后止血效果的比较

比较病人拔鞘管后应用经皮血管缝合器与人工压迫止血的安全性和疗效。 1 2 5例病人 (男 86例、女 39例 ,年龄 65 .7± 1 2 .3岁 ) ,在行心导管术后 ,分为人工压迫组 [Ⅰ组 ,63例 ,其中分为冠状动脉 (简称冠脉 )造影 (CAG)组35例 (IA) ,冠脉介入治疗术组 2 8例 (IB) ]和股动脉穿刺点经皮血管缝合组 [Ⅱ组 ,62例 ,CAG组 35例 (ⅡA) ,冠脉介入治疗术组 2 7例 (ⅡB) ]。在术后即刻应用经皮血管缝合器和依病人抗凝水平行人工压迫止血 ,观察止血时间 ,平卧时间和并发症。结果 :与人工压迫止血组时间比较 ,经皮血管缝合组止血时间和平卧时间有显著缩短。有 4例病人首次应用缝合器止血失效 ,首次成功率达 91 % ( 5 8/62 ) ;失败 2例 ,再用缝合器缝合获得成功 ,总成功率达96% ( 60 /62 )。在ⅠB组有 1例病人在血管成形术 3天后出现再次急性心肌梗死 ,给予静脉 (尿激酶 )溶栓后于穿刺伤口再出血而需压迫止血 1h。结论 :经皮血管缝合器应用的安全性优于人工压迫组 ,缩短了止血与下床走动时间     

老年患者经皮冠状动脉介入治疗后血管闭合器的临床应用

近年来国内外股动脉穿刺口的新型缝合器已用于临床 ,效果理想 ,但对股动脉血管闭合器的临床运用国内罕见报道。我们对老年患者经皮冠状动脉介入治疗 (PCI)后股动脉穿刺口用Angio Seal STSTM血管闭合器与人工压迫止血对比观察 ,探讨血管闭合器对老年患者PCI后的临床应用价值。1　对象与方法行PCI患者 1 5 6例中男 98例 ,女 5 8例 ,平均年龄 ( 70± 5 .5 )岁 ,依止血方法不同 ,分为人工压迫股动脉组 ( 78例 )和血管闭合器封堵股动脉组 ( 78例 )。人工压迫股动脉 :PCI后 4h留置股动脉鞘拔管后直接压迫股动脉穿刺部位 ,依据患者的抗凝水…     

冠状动脉造影和介入治疗术后采用Angio-Seal血管闭合器和人工压迫止血的对比

Angio Seal血管闭合器是一种新型的止血装置,它通过附于血管壁内侧的胶原锚和附于血管壁外侧的胶原海绵来封闭穿刺点,从而达到止血的目的。本研究通过与人工压迫止血方法相比较,评价Angio Seal血管闭合器用于动脉穿刺部位止血的安全性和有效性。1　对象与方法1.1　对象回顾分析2003 年 5~7 月在我院心内科经股动脉穿刺行冠状动脉(冠脉)造影或介入治疗的235例患者。入选标准:①年龄 18~75 岁,②第 1 次经股动脉穿刺行经皮介入诊治术;排除标准:①股动脉穿刺时透壁损伤或多次试穿刺失败,②股动脉造影提示穿刺点位于血管分叉处或穿刺部位…     

Boomerang封堵器的效果和安全性

目的 探讨新型血管止血装置Boomerang封堵器临床使用的效果和安全性。方法 冠状动脉造影和经皮冠状动脉介入治疗术后病人106例,以Boomerang封堵器止血。分析置入成功率、止血成功率、人工压迫时间、制动时间、外周血管并发症和术后住院时间。结果 置入成功率97.2%,止血成功率94.3%,人工压迫时间在冠状动脉造影组和介入组分别为7.8min和12.2min,卧床时间在冠状动脉造影组和介入组分别为146min和327min,无严重外周血管并发症,轻微外周血管并发症率5.7%,术后住院时间在冠状动脉造影组和介入组分别为1.8d和6.6d。结论 Boomerang封堵器止血效果良好,严重并发症少,可以缩短卧床时间和住院时间。     

冠状动脉介入术后血管缝合的血管并发症分析

目的 分析冠状动脉介入术后Angioseal血管缝合器机械止血和人工压迫止血的血管并发症发生率。方法 947例冠状动脉介入诊治病例，179例术后使用Angioseal血管缝合器止血（机械组），另外768例进行人工压迫止血（人工组），比较二组的止血时间、制动时间和血管并发症发生率。结果 机械组显著缩短止血时间和制动时间(P<0.01)，但其与人工组的血管并发症发生率差异无统计学意义（P>0.05）。结论 使用Angioseal血管缝合器能显著缩短止血时间和制动时间，但不能减少股动脉穿刺并发症的发生率，不推荐介入术后常规使用机械止血装置。     

心导管术后经皮动脉血管封堵器的临床应用

目的比较经皮冠状动脉介入术后,股动脉穿刺口采用Angio-Seal血管封堵器与局部人工压迫止血方法的疗效与安全性。方法196例进行心导管检查的患者,随机分为股动脉穿刺口人工压迫止血组(82例,其中冠状动脉造影术36例,冠状动脉成形术46例)和血管封堵器止血组(114例,其中冠状动脉造影术52例,冠状动脉成形术62例),观察止血时间、并发症及成功率。结果Angio-Seal血管封堵器与局部人工压迫止血法比较,止血时间明显缩短,并发症减少,成功率相当。结论Angio-Seal血管封堵器在掌握好适应证的前提下,可广泛应用于经皮冠状动脉手术后股动脉穿刺口的处理。     

The immunoneuroendocrine role of melatonin

Abstract: A tight, physiological link between the pineal gland and the immune system is emerging from a series of experimental studies. This link might reflect the evolutionary connection between self-recognition and reproduction. Pinealectomy or other experimental methods which inhibit melatonin synthesis and secretion induce a state of immunodepression which is counteracted by melatonin. In general, melatonin seems to have an immunoenhancing effect that is particularly apparent in immunodepressive states. The negative effect of acute stress or immunosuppressive pharmacological treatments on various immune parameters are counteracted by melatonin. It seems important to note that one of the main targets of melatonin is the thymus, i.e., the central organ of the immune system. The clinical use of melatonin as an immunotherapeutic agent seems promising in primary and secondary immunodeficiencies as well as in cancer immunotherapy. The immunoenhancing action of melatonin seems to be mediated by T-helper cell-derived opioid peptides as well as by lymphokines and, perhaps, by pituitary hormones. Melatonin-induced-immuno-opioids (MHO) and lymphokines imply the presence of specific binding sites or melatonin receptors on cells of the immune system. On the other hand, lymphokines such as -γ-interferon and interleukin-2 as well as thymic hormones can modulate the synthesis of melatonin in the pineal gland. The pineal gland might thus be viewed as the crux of a sophisticated immunoneuroendocrine network which functions as an unconscious, diffuse sensory organ.     

Changes in connexin43, the gap junction protein of astrocytes, during development of the rat pineal gland

Abstract: The abundance of gap junctions between rat pineal astrocytes formed by connexin43 (Cx43) was studied during development. Levels and distribution of Cx43 were measured by immunoblotting and indirect immunofluorescence, respectively. The amount of Cx43 in cells located within the gland was low until about the 7th postnatal day and increased to adult values between the 14th and 21st days postpartum. Although astrocytes, recognized by their vimentin immunoreactivity, were scarce before birth, they were abundant by the 7th postnatal day suggesting that the low levels of Cx43 found at this age corresponded to a low expression of this protein. Localization of the immunoreactivity to Cx43 and vimentin showed a close correlation, indicating that mature or immature pineal astrocytes form gap junctions made of Cx43. Since Cx43 levels attained their adult values at about the time the innervation and the functional state of the gland reached maturity (2–3 weeks after birth), it is proposed that astrocyte gap junctions are involved in the function of the adult rat pineal gland.     

Conservative management of perforated duodenal diverticulum： A case report and review of the literature

Duodenal diverticula are a relatively common condition. They are asymptomatic, unless they become complicated, with perforation being the rarest but most severe complication. Surgical treatment is the most frequently performed approach. We report the case of a patient with a perforated duodenal diverticulum, which was diagnosed early and treated conservatively with antibiotics and percutaneous drainage of secondary retroperitoneal abscesses. We suggest this method could be an acceptable option for the management of similar cases, provided that the patient is in good general condition and without septic signs.     

Response of rat pineal melatonin to calcium, magnesium, and lithium is circadian stage dependent

Abstract: Herein we documented the response of pineal melatonin production to electrolytes known to be effective on pineal function in view of a possible circadian stage dependence. We studied the release of melatonin by perifused rat pineal glands at 2 different circadian stages corresponding to the middle of the light and dark periods, i.e., respectively, 7 and 19 HALO (Hours After Light Onset, L:D = 12:12). The initial efflux rates were, as expected, much higher in the perifusates of glands removed from rats sacrificed during the dark phase than of those removed during the light phase. After 3 hr of perifusion, melatonin release reached similar levels which were found constant up to the 8th hr of perifusion, whatever the circadian stage. Perifusion of the glands with physiological concentrations for the rat of calcium (5.2 mmol/1) and magnesium (1.34 mmol/1) resulted in a stimulatory effect on the pineal glands removed from rats sacrificed in the middle of the dark period (19 HALO), whereas no effects were observed on the pineal glands removed from rats sacrificed during the light (7 HALO). Lithium (0.28 and 0.55 mmol/1) was ineffective on melatonin release in pineal glands removed 7 and 19 HALO. Our results show differences in the initial efflux rates of melatonin and in the response of perifused pineal glands to calcium and magnesium according to the circadian stage.     

Presence of immunoreactive growth hormone and prolactin in the ovine pineal gland

Abstract: The use of antisera raised against bovine growth hormone (GH) and ovine prolactin (PRL) enabled the detection of related immunoreactive (ir) sequences of proteins in ovine pineal tissue. The isolation of PRL-like ir-material was accomplished using a 0.25 M ammonium sulphate (pH 5.5) extraction followed by ethanol precipitation, whereas the resulting 2.0 M ammonium sulphate (pH 7.0) precipitate contained a GH-like immunoreactivity. Gel chromatography of the GH-like immunoreactivity (Sephadex G-100) indicated the presence of several GH-like fragments ranging in the M_r range of 7,000 to 55,000. Analyses of the PRL-like ir-material found in pineal tissue on HPLC using a TSK 545-DEAE column led to the resolution into a single peak of immunoreactivity. A single peak of activity was also observed following chromatofocusing and hydrophobic interaction chromatography of the ir-peak from the TSK 545-DEAE column. The PRL-like ir-material inhibited the binding of [¹²⁵I]ovine PRL-S14 to anti-ovine PRL antibodies without showing an affinity for binding to anti-rat PRL or anti-bovine GH antibodies. Scatchard analysis of the binding of pineal PRL-like ir-material and pituitary ovine PRL-S14 to liver membranes from day-20 pregnant rats revealed similar affinity constants (K_a of 4.7 ± 0.2 × 10⁹ M^-1). In addition, the replication of Nb 2 Node rat lymphoma cells was stimulated by pineal PRL-like ir-material, an effect known to be specific for lactogenic hormones. The pineal PRL-like immunoreactivity appeared on sodium dodecyl sulfate polyacrylamide gels as a single major band of M_r 24,000. The functional status of PRL-and GH-like ir-material in the ovine pineal remains to be determined, but evidence is presented that the overall protein synthesis rate of the rat pineal responded to circulating concentrations of PRL.     

Microbiology of human immunodeficiency virus anorectal disease

PURPOSE: Individuals who are seropositive for the human immunodeficiency virus are at high risk for opportunistic infection and anorectal disorders. Little prospective information is available regarding anorectal pathogens in these patients. METHODS: One hundred sixty-three HIV-seropositive patients presented to the colorectal clinic between 1989 and 1992. Forty-seven (29 percent) patients were thought to have an infectious process and were prospectively studied using a standardized multiculture protocol. RESULTS: Mean age was 33 (range, 19–59) years. All were male; high-risk behavior accounted for 87 percent of HIV transmissions. Presenting complaints included anorectal pain (79 percent), pus per anum (28 percent), and blood per anum (26 percent). Examination revealed perianal tenderness (60 percent), condyloma (38 percent), perianal ulcers (38 percent), and anal fissures (34 percent). Sixty-six sets of cultures were performed; 28 patients had one set, 15 had two sets, and 4 had three sets. Thirty-two of these 47 patients (68 percent) had positive cultures including herpes (50 percent), cytomegalovirus (25 percent),Neisseria gonorrhoeae (16 percent), chlamydia (16 percent), acidfast bacilli (2 percent), and others (9 percent). Six of 32 patients with positive cultures had more than one organism cultured. Sixteen (50 percent) patients with positive cultures were treated medically, 8 (25 percent) were treated surgically and 8 (25 percent) were treated with both modalities. Sixty-one procedures were performed on 17 patients for condylomata. Eighteen patients had 20 procedures for abscesses, 50 percent of whom had positive cultures for other than common bowel flora; all improved. Fourteen patients underwent 33 procedures for perianal fistulas.Mycobacterium fortuitum was cultured from one patient who required 13 procedures for abscesses and fistulas. Forty-five (96 percent) patients were followed for an average of 12.5 months ±2.9 SEM (range, 1–94 months). Symptoms were improved or resolved in 22 of 32 (69 percent) patients with positive cultures and in 11 of 13 (84 percent) with negative cultures. CONCLUSIONS: Specific pathogens may often be identified in human immunodeficiency virus-seropositive patients with anorectal disorders if aggressively sought. Although patients without specific pathogens identified may be expected to improve with planned empiric treatment, positive identification allows more directed therapy.