title: Subcutaneous emphysema and ultrasound sonography.
abstract: Subcutaneous emphysema is not a rare complication in intensive care unit patients. Recently, ultrasound guidance for central venous puncture is becoming popular; however, the information on imaging for subcutaneous emphysema is limited. We encountered a patient complicated with severe pneumomediastinum and subsequent subcutaneous emphysema. The catheter replacement was attempted, and we examined the visuality of cervical vessels using ultrasound sonography before the intervention. Internal jugular vein itself was observed despite of subcutaneously migrated air bubble; however, the range of ultrasound image was limited, and the relationship between the vessel and the adjacent tissue was unclear.
authors.affiliation: Department of Emergency Medicine, Ogaki Municipal Hospital, Ogaki, Gifu, 503-8502 Japan.
authors.forename: Toshi
authors.initials: T
authors.lastname: Kubodera
authors.affiliation: Department of Emergency Medicine, Nagoya University Hospital, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550 Japan.
authors.forename: Yushi U
authors.initials: YU
authors.lastname: Adachi
authors.affiliation: Department of Emergency and Critical Care Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550 Japan.
authors.forename: Toshiyuki
authors.initials: T
authors.lastname: Hatano
authors.affiliation: Department of Emergency and Critical Care Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550 Japan.
authors.forename: Tadashi
authors.initials: T
authors.lastname: Ejima
authors.affiliation: Department of Emergency and Critical Care Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550 Japan.
authors.forename: Atsushi
authors.initials: A
authors.lastname: Numaguchi
authors.affiliation: Department of Emergency and Critical Care Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550 Japan.
authors.forename: Naoyuki
authors.initials: N
authors.lastname: Matsuda
keywords: Central venous catheterization; Subcutaneous emphysema; Ultrasound sonography