Pulmonary hypertension associated with lung transplantation obliterative bronchiolitis and vascular remodeling of the allograft.

Pulmonary hypertension associated with lung transplantation obliterative bronchiolitis and vascular remodeling of the allograft.
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DOI:
10.1111/j.1600-6143.2008.02338.x
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发表时间:
2008-09
期刊:
American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons
影响因子:
--
通讯作者:
Belperio JA
Belperio JA
中科院分区:
其他
文献类型:
--
作者:
Saggar R;Ross DJ;Saggar R;Zisman DA;Gregson A;Lynch JP 3rd;Keane MP;Weigt SS;Ardehali A;Kubak B;Lai C;Elashoff D;Fishbein MC;Wallace WD;Belperio JA

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病理性闭塞性细支气管炎(OB)/闭塞性细支气管炎综合征(病理性OB/BOS)是肺移植(LT)后长期生存的主要障碍。我们的研究小组已经证明,肺动脉高压 (PH) 使慢性炎症性肺部疾病的病程变得复杂,这些慢性炎症性肺部疾病与病理性 OB/BOS 相似,并且在 BOS 期间发生了支气管循环的血管重塑。因此,我们假设 PH 与病理性 OB/BOS 相关,并且可能由同种异体移植肺循环的血管病变引起。我们进行了一项单中心回顾性研究,检查了病理性 OB/BOS 患者是否存在 PH 和血管病变。 1997年1月10日至2007年1月5日期间回收了52份LT后病理标本,并将其分为两组,即有和没有病理性OB/BOS的组。 PH 定义为右心导管插入术 (RHC) 测量的平均肺动脉压 (mPAP) > 25 mmHg 或经胸超声心动图 (TTE) 测量的右心室收缩压 (RVSP) ≥45 mmHg。 PH 在患有病理性 OB/BOS 的 LT 受者中更为普遍(72% vs. 0%,p = 0.003)。此外,肺动脉病和肺静脉病在病理性 OB/BOS 患者中更为常见(分别为 84% vs. 4%,p < 0.0001;77% vs. 35%,p = 0.004)。 PH 在患有病理性 OB/BOS 的 LT 受者中很常见,并且与同种异体移植肺循环的血管病变相关。
Pathologic obliterative bronchiolitis (OB)/Bronchiolitis obliterans syndrome (pathologic OB/BOS) is the major obstacle to long-term survival post-lung transplantation (LT). Our group has demonstrated that pulmonary hypertension (PH) complicates the course of chronic inflammatory lung diseases that have similarities to pathologic OB/BOS and that vascular remodeling of the bronchial circulation occurs during BOS. Consequently, we hypothesized that PH is associated with pathologic OB/BOS and may result from a vasculopathy of the allograft pulmonary circulation. We conducted a single-center, retrospective study and examined the presence of PH and vasculopathy in patients with pathologic OB/BOS. Fifty-two pathologic specimens post-LT were recovered from January 10, 1997 to January 5, 2007 and divided into two groups, those with and without pathologic OB/BOS. PH was defined as a mean pulmonary artery pressure (mPAP) > 25 mmHg by right heart catheterization (RHC) or right ventricular systolic pressure (RVSP) ≥45 mmHg by transthoracic echocardiogram (TTE). PH was more prevalent in those LT recipients with pathologic OB/BOS (72% vs. 0%, p = 0.003). Furthermore, pulmonary arteriopathy and venopathy were more prevalent in patients with pathologic OB/BOS (84% vs. 4%, p < 0.0001, and 77% vs. 35%, p = 0.004, respectively). PH is common in LT recipients with pathologic OB/BOS and is associated with a vasculopathy of the allograft pulmonary circulation.
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