Table 4. Distribution of complications according to the TM&M classification system.

TM&M grade	TM&M definition/treatment performed	Distribution of complications according to TM&M grading (n=34)
I	Adverse event which alters the standard postoperative course without requiring a specific treatment	0
II	Pharmacologic treatment or minor intervention required	10
IIIa	Surgical, radiologic, endoscopic treatment, or multi-therapy required without general anesthesia	8
IIIb	Surgical, radiologic, endoscopic treatment, or multi-therapy required with general anesthesia	4
IVa	Intensive care unit treatment for single organ dysfunction required	8
IVb	Intensive care unit treatment for multiple organ dysfunction required	1
V	Adverse event which leads to death	3

TM&M, the thoracic morbidity and mortality.