Ivor Lewis subtotal esophagectomy with two-field lymphadenectomy for squamous cell carcinoma of the lower thoracic esophagus

Table 1 Postoperative pathological staging in 73 patients with esophageal carcinoma

Stage	TNM	Patients, n (%)
I(n = 5)	T1N0M0	5 (6.8)
IIa (n = 16)	T2N0M0	7 (9.6)
	T3N0M0	9 (12.3)
IIb (n = 19)	T1N1M0	3 (4.1)
	T2N1M0	15 (20.5)
III (n = 32)	T3N1M0	29 (39.7)
	T4N1M0	3 (4.1)
IV (n = 2)	T3N1M1	2 (2.7)

Table 2 Postoperative complications in 73 patients with esophageal carcinoma n (%)

Complications	Patients	Patients died
Pneumonia	4 (5.5)	1 (1.4)
Vocal cord palsy	3 (4.1)	0 (0)
Arrhythmia	3 (4.1)	0 (0)
Anastomotic leakage	2 (2.7)	1 (1.4)
Postoperative bleeding	1 (1.4)	0 (0)
Wound infection	1 (1.4)	0 (0)

Table 3 Relation between depth of tumor infiltration (T) and lymph node metastasis (N)

T	N0	N1	Prevalence of nodal metastases (%)
T1 (n = 8)	5	3	37.5
T2 (n = 22)	7	15	68.2
T3 (n = 40)	9	31	77.5
T4 (n = 3)	0	3	100

P = 0.888.

Table 4 Distribution of lymph node metastatic locations

Metastatic location	Patients with negative lymph node (n)	Patients with positive lymph node (n)	Frequency of nodal metastases (%)
Upper mediastinum	60	13	17.8
Middle mediastinum	58	15	20.5
Lower mediastinum	43	30	41.1
Upper abdomen	48	25	34.2

P = 0.004.