Are Downhill Varices an Overlooked Entity of Upper Gastrointestinal Bleedings?

Table 3

Etiological factors.

Central venous catheter or port implantation	26 (%20.1)
Cardiac pacemaker	22 (%17)
Chronic obstructive pulmonary disease	4 (%3.1)
Pulmonary artery embolism	7 (%5.4)
Mediastinal tumor	2 (%1.6)
Retrosternal goiter	1 (%0.8)
Not suspected relation	67 (%52)