目的分析心脏移植患者术前肺动脉压力和肺血管阻力（PVR）与术后右心功能不全、并发症发生和死亡的关系,总结围术期肺动脉高压的管理经验,以利于心脏移植术后患者早期心功能的恢复。方法125例接受同种原位心脏移植手术的患者,根据术前...目的分析心脏移植患者术前肺动脉压力和肺血管阻力（PVR）与术后右心功能不全、并发症发生和死亡的关系,总结围术期肺动脉高压的管理经验,以利于心脏移植术后患者早期心功能的恢复。方法125例接受同种原位心脏移植手术的患者,根据术前肺动脉收缩压（PASP）和PVR不同分为两组,肺动脉高压组（n=56）：术前PASP〉50 mm Hg或PVR〉5 Wood.U;对照组（n=69）：术前PASP≤50 mm Hg,PVR≤5 Wood.U。通过Swan-Ganz导管监测两组手术前心脏排血指数（CI）,手术前。展开更多
本实验观察了复方丹参注射液对低氧性肺动脉高压家兔肺循环、体循环、心电图 ST 段及动脉血气含量的影响。结果表明:复方丹参注射液可对抗低氧所致肺动脉压升高,降低肺血管阻力;心输出量和每搏输出量皆明显高于对照组;同时可改善缺氧动...本实验观察了复方丹参注射液对低氧性肺动脉高压家兔肺循环、体循环、心电图 ST 段及动脉血气含量的影响。结果表明:复方丹参注射液可对抗低氧所致肺动脉压升高,降低肺血管阻力;心输出量和每搏输出量皆明显高于对照组;同时可改善缺氧动物动脉血氧分压和降低严重缺氧所致心电图ST段下移程度。展开更多
Chronic thromboembolic pulmonary hypertension (CTEPH) comprises organizing thrombotic obstructions in the pulmonary arteries by nonresolving thromboemboli, formation of fibrosis and remodeling of pulmonary blood vesse...Chronic thromboembolic pulmonary hypertension (CTEPH) comprises organizing thrombotic obstructions in the pulmonary arteries by nonresolving thromboemboli, formation of fibrosis and remodeling of pulmonary blood vessels. Surgical pulmonary endarterectomy (PEA) is the therapy of choice for patients with surgically accessible CTEPH, which leads to a profound improvement in hemodynamics, functional class and survival. Select- ing the candidates that will benefit from surgery is still a challenging task. Criteria for surgical suitability have been described but the decision-making for or against surgical intervention remains still subjective. The optimal characterization of the reciprocal contribution of large vessel and small vessel disease in the elevation of pulmonary vascular resistance is crucial for the indication and outcome of PEA. Recently, Toshner et al intended to validate the partition resistance into small and large vessels compartments (upstream resistance:Rup) by the occlusion technique in the preoperative assessment of PEA. We discuss the advantages and disadvantages of Rup and compare it with other hemodynamic predictor to evaluate operative risk in CTEPH patients.展开更多
文摘目的分析心脏移植患者术前肺动脉压力和肺血管阻力（PVR）与术后右心功能不全、并发症发生和死亡的关系,总结围术期肺动脉高压的管理经验,以利于心脏移植术后患者早期心功能的恢复。方法125例接受同种原位心脏移植手术的患者,根据术前肺动脉收缩压（PASP）和PVR不同分为两组,肺动脉高压组（n=56）：术前PASP〉50 mm Hg或PVR〉5 Wood.U;对照组（n=69）：术前PASP≤50 mm Hg,PVR≤5 Wood.U。通过Swan-Ganz导管监测两组手术前心脏排血指数（CI）,手术前。
文摘Chronic thromboembolic pulmonary hypertension (CTEPH) comprises organizing thrombotic obstructions in the pulmonary arteries by nonresolving thromboemboli, formation of fibrosis and remodeling of pulmonary blood vessels. Surgical pulmonary endarterectomy (PEA) is the therapy of choice for patients with surgically accessible CTEPH, which leads to a profound improvement in hemodynamics, functional class and survival. Select- ing the candidates that will benefit from surgery is still a challenging task. Criteria for surgical suitability have been described but the decision-making for or against surgical intervention remains still subjective. The optimal characterization of the reciprocal contribution of large vessel and small vessel disease in the elevation of pulmonary vascular resistance is crucial for the indication and outcome of PEA. Recently, Toshner et al intended to validate the partition resistance into small and large vessels compartments (upstream resistance:Rup) by the occlusion technique in the preoperative assessment of PEA. We discuss the advantages and disadvantages of Rup and compare it with other hemodynamic predictor to evaluate operative risk in CTEPH patients.
