Table 1 Overview of collected studies
First author, year | Country | Design | Surgical method | No. of patients | Comparability | Tumor mean size (cm) | No. of IVC thrombus | Outcomes variables | Mean follow-up (months) | Study quality (score) |
|---|---|---|---|---|---|---|---|---|---|---|
Lee et al. (2018) [25] | Korea | Retrospective | ORN/LRN | 578/257 | 1, 2, 3, 5, 6, 7 | 9/8 | 0 | 1, 2, 3, 11 | 51.2/51.2 | 8 |
Nian et al. (2022) [26] | China | Retrospective | ORN/LRN | 37/37 | 1, 2, 3, 4, 5, 7 | 11.7/11.3 | 0 | 1, 2, 3, 5, 6, 7, 8, 9, 10, 11 | 43/45.7 | 8 |
Hemal et al. (2007) [20] | India | Prospective | ORN/LRN | 71/41 | 1, 2, 3, 4 | 10.1/9.9 | NA | 1, 4, 5, 6, 8, 9, 10, 11 | 57.2/51.4 | 9 |
Hattori et al. (2009) [4] | Japan | Retrospective | ORN/LRN | 79/52 | 1, 2, 4, 6, 7 | 8.9/8.8 | 0 | 4, 5, 6, 8, 9, 11 | 51/41 | 7 |
Jeon et al. (2011) [5] | Korea | Retrospective | ORN/LRN | 167/88 | 1, 2, 3, 4, 5, 7 | 9.8/9.2 | 0 | 1, 3, 4, 5, 6, 8, 9, 11 | 25.8/19 | 7 |
Steinberg et al. (2004) [27] | US | Retrospective | ORN/LRN | 34/65 | 1, 2, 3, 4, 5, 6 | 9.9/9.2 | 0 | 6, 7, 9, 10, 11 | NA | 7 |
Chiba et al. (2016) [17] | Japan | Retrospective | ORN/LRN | 42/37 | 1, 2, 3, 4 | 9.4/8.6 | NA | 4, 6, 7, 9, 10, 11 | NA | 7 |
Fang et al. (2013) [18] | China | Retrospective | ORN/LRN | 317/71 | 1, 2, 3, 4, 6 | 9.5/8.8 | 0 | 6, 7, 9, 10, 11 | NA | 7 |
Huang et al. (2015) [19] | China | Retrospective | ORN/LRN | 31/15 | 1, 2, 4, 5, 6, 7 | 13.2/12.1 | 0 | 1, 3, 5, 6, 8, 9, 10, 11 | 43.2/45.6 | 8 |
Zhu et al. (2016) [28] | China | Retrospective | ORN/LRN | 68/84 | 1, 2, 3, 4, 6, 7 | 10.3/8.8 | NA | 4, 5, 6, 8, 9, 11 | 58.2/56.3 | 9 |
Kwon et al. (2011) [23] | Korea | Retrospective | ORN/LRN | 35/33 | 1, 2, 3, 4, 7 | 9/8.2 | NA | 2, 4, 6, 9, 11 | 65.6/60 | 8 |
Fujita et al. (2014) [29] | Japan | Retrospective | ORN/LRN | 124/83 | 1, 2, 4, 6, 7 | 9.3/8.7 | NA | 2, 3, 4, 5, 6, 8, 9, 11 | 109/71 | 6 |
Zhen et al. (2010) [21] | China | Retrospective | ORN/LRN | 36/36 | 1, 2, 4 | 8.8/8.5 | NA | 5, 6, 7, 8, 9, 10, 11 | 15/15 | 6 |
Khan et al. (2019) [22] | India | Prospective | ORN/LRN | 30/30 | 1, 2, 4, 7 | NA | 0 | 5, 6, 7, 8, 9, 10, 11 | 17.5/17 | 8 |
Laird et al. (2015) [24] | UK | Prospective | ORN/LRN | 25/25 | 1, 2, 4, 6, 7 | 10/8.7 | NA | 1, 2, 3, 6, 7, 9, 10, 11 | 54/56.4 | 8 |
Dillenburg et al. (2006) [6] | Germany | Prospective | ORN/LRN | 25/23 | 1, 2, 3, 4, 6, 7 | 9.3/8.9 | 0 | 5, 6, 7, 8, 9, 10, 11 | 13/12 | 9 |
Bensalah et al. (2009) [16] | France | Retrospective | ORN/LRN | 135/44 | 1, 2, 7 | NA | 0 | 2 | 55/28 | 8 |
Bayrak et al. (2014) [15] | Turkey | Retrospective | ORN/LRN | 140/33 | 1, 5, 6 | 9.9/9.5 | 0 | 5, 7, 8, 10 | 33/23 | 8 |