Sutureless technique versus conventional surgery in the primary treatment of total anomalous pulmonary venous connection: a systematic review and meta-analysis

Table 4 Post-operative PVO and strategy of re-operation

Study	Surgical approach	Post-operative PVO(n)	Strategy of post-operative PVO underwent re-operation	Total number of operation(n)
Gao [8]	ST CS	2 14	NA^a	NA
Cui [9]	ST CS	NA	NA	NA
Shi [10]	ST CS	10 101	12 sutureless technique; 7 patch augmentation; 5 fibrous resection^b	792^b
Yamashita [11]	ST CS	1 2	1 sutureless technique 1 fibrous resection; 1 SI	8 8
Yanagawa [12]	ST CS	1 2	No patient required re-operation NA^c	21 38
Honjo [13]	ST CS	1 6	No patient required re-operation 3 fibrous resection	8 17
Lo Rito [14]	ST CS	5 17	1 fibrous resection; 1 sutureless technique 5 fibrous resection; 7 sutureless technique	71 138

^a Only the numbers of PVO was available and lack of details of post-operative PVO
^b Strategy of post-operative PVO underwent re-operation was presented totally
^c Two patients in the conventional repair group underwent re-operation without description of details
ST Sutureles technique group, CS Conventional surgery group, SI Stent implantation, NA Not available

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