Dave Hitendu, Kadner Alexander, Bauersfeld Urs, Berger Felix, Turina Marko, Prêtre René
University Hospital Zurich, Zurich, Switzerland.
Heart Surg Forum. 2003;6(5):390-2.
To study the early function of the bovine jugular vein (BJV) when used for right ventricular outflow tract (RVOT) reconstruction during the Ross procedure.
Seventeen consecutive patients (median age, 12 years; range, 30 days to 40 years) who had undergone a Ross procedure with RVOT reconstruction using a BJV were reviewed. Nine patients had prior balloon valvotomy (n = 6) and/or surgical aortic valvotomy (n = 4). Additional procedures included a reduction-plasty of the ascending aorta (5 patients), a Konno procedure (2 patients), a mitral valve repair/replacement (2 patients), and others (3 patients). The size of the BJV ranged from 12 to 22 mm (median, 20 mm).
There were no early or late deaths. None of the patients encountered any significant postoperative complications. The neo-aortic valve showed good function in all patients with no more than trivial insufficiency. At a median follow-up period of 11 months, the frequency of freedom from BJV graft dysfunction/reintervention/reoperation was 100%. One patient had moderate insufficiency of the BJV in a perioperative examination that regressed to mild insufficiency during follow-up. Overall, none of the patients had more than mild insufficiency at follow-up. Four patients showed a flow acceleration of more than 250 cm/s (equivalent to a gradient of 25 mm Hg) across the BJV, and the remaining patients had lower gradients.
The BJV, when used to replace the pulmonary valve in the Ross procedure, showed excellent function in the early phase. The large size range and easy availability of this valved conduit are particularly attractive. Further followup is needed to determine the long-term results of its use.
研究在Ross手术中使用牛颈静脉(BJV)进行右心室流出道(RVOT)重建时的早期功能。
回顾了17例连续接受Ross手术并使用BJV进行RVOT重建的患者(中位年龄12岁;范围30天至40岁)。9例患者曾接受过球囊瓣膜切开术(n = 6)和/或外科主动脉瓣膜切开术(n = 4)。其他手术包括升主动脉缩窄成形术(5例)、Konno手术(2例)、二尖瓣修复/置换术(2例)以及其他手术(3例)。BJV的直径范围为12至22毫米(中位值20毫米)。
无早期或晚期死亡病例。所有患者均未出现任何严重的术后并发症。所有患者的新主动脉瓣功能良好,仅有轻微反流。中位随访期为11个月时,BJV移植物无功能障碍/再次干预/再次手术的发生率为100%。1例患者在围手术期检查时BJV有中度反流,随访期间反流程度减轻至轻度。总体而言,随访期间所有患者的反流均不超过轻度。4例患者BJV处血流加速超过250厘米/秒(相当于压差25毫米汞柱),其余患者压差较低。
在Ross手术中使用BJV替代肺动脉瓣时,早期功能良好。这种带瓣管道直径范围大且易于获取,特别具有吸引力。需要进一步随访以确定其长期使用效果。