Table 2. Demographics and clinical characteristics of patients with spontaneous hemopneumpthorax

No.	Age	Gender	Initial Symptoms	Shock situation	Bullae	Source of Bleeding	Drainage	Surgical Intervention	Time of operation (after onset)	Drainage time (days)	Duration of hospital stay (days)
1	21	Male	Sudden onset of left-sided chest pain	Yes	No	A small vessel between the two layers of the pleurae at the apex of the lungs	1000 ml	VATS	12 hours	6	7
2	62	Male	Ascending epigastric pain	Yes	Yes	A small vessel between the two layers of the pleurae at the apex of the lungs	2000 ml	Thoracotomy	6 hours	5	7
3	48	Male	Sudden onset of left-sided chest pain	Yes	No	A small vessel between the two layers of the pleurae at the apex of the lungs	1300 ml	VATS	8 hours	3	5