Kravetz D, Romero G, Argonz J, Guevara M, Suarez A, Abecasis R, Bildozola M, Valero J, Terg R
Liver Unit, Hospital de Gastroenterologia Dr. Bonorino Udaondo, Buenos Aires, Argentina.
Hepatology. 1997 Jan;25(1):59-62. doi: 10.1053/jhep.1997.v25.pm0008985265.
It has been suggested that ascites is a risk factor for variceal bleeding in cirrhotic patients. However, no data of total volume paracentesis (TVP) effects on variceal hemodynamics has yet been published. The aim of this study was to investigate the effects of TVP on variceal pressure, size, and tension in cirrhotic patients. Before sclerotherapy, 18 cirrhotic patients with grade II esophageal varices were studied. The following measurements were performed on 12 patients at basal condition and after TVP: inferior vena cava pressure, esophageal pressure (EP), and intravariceal pressure (IVP) by direct punction and variceal size at endoscopy. The same measurements were performed at basal condition and 1 hour later without TVP on the other 6 patients used as a control group. Variceal pressure gradient (VPG) and variceal wall tension (WT) were calculated. Paracentesis and intra-abdominal pressure were obtained with a direct punction. No demographic differences were observed between both groups. Paracentesis produced a significant reduction of IVP (from 25.6 +/- 2.4 to 17.9 +/- 2.1 mm Hg, means +/- SEM, -30%, P < .05), VPG (from 16.6 +/- 2.4 to 10.8 +/- 1.4 mm Hg, -35%, P < .05). TVP also reduced variceal size (from 9 +/- 0.3 to 5.6 + 0.4 mm, -38%, P < .05) and WT (from 75.3 +/- 11.6 to 30 +/- 4.7 mm Hg. mm, -60%, P < .05). Intra-abdominal pressure decreased from 18 +/- 2.2 to 4 +/- 0.9 mm Hg (P < .05), and IVC decreased from 15.5 +/- 2.4 to 5.7 +/- 1.5 mm Hg (P < .05). No significant differences were observed in mean arterial pressure and heart rate. The mean ascitic fluid removed was 8 +/- 0.71 L. No significant difference between measurements was observed in the control group. Our results show that TVP significantly decreases variceal pressure and tension. These results suggest that ascites removal can be useful in the treatment of variceal bleeding in cirrhotic patients.
有人提出腹水是肝硬化患者发生静脉曲张出血的一个危险因素。然而,关于大量腹腔穿刺放液(TVP)对静脉曲张血流动力学影响的数据尚未发表。本研究的目的是探讨TVP对肝硬化患者静脉曲张压力、大小和张力的影响。在硬化治疗前,对18例患有II级食管静脉曲张的肝硬化患者进行了研究。对12例患者在基础状态下和TVP后进行了以下测量:通过直接穿刺测量下腔静脉压力、食管压力(EP)和静脉曲张内压力(IVP),并在内镜检查时测量静脉曲张大小。对另外6例作为对照组的患者在基础状态下和1小时后未进行TVP时进行了相同的测量。计算静脉曲张压力梯度(VPG)和静脉曲张壁张力(WT)。通过直接穿刺获得腹腔穿刺放液量和腹内压。两组之间未观察到人口统计学差异。腹腔穿刺放液使IVP显著降低(从25.6±2.4降至17.9±2.1 mmHg,均值±标准误,-30%,P<.05),VPG(从16.6±2.4降至10.8±1.4 mmHg,-35%,P<.05)。TVP还使静脉曲张大小减小(从9±0.3降至5.6±0.4 mm,-38%,P<.05),WT降低(从75.3±11.6降至30±4.7 mmHg·mm,-60%,P<.05)。腹内压从18±2.2降至4±0.9 mmHg(P<.05),下腔静脉压力从15.5±2.4降至5.7±1.5 mmHg(P<.05)。平均动脉压和心率未观察到显著差异。平均抽出的腹水量为8±0.71 L。对照组测量值之间未观察到显著差异。我们的结果表明,TVP显著降低静脉曲张压力和张力。这些结果提示,消除腹水可能有助于治疗肝硬化患者的静脉曲张出血。