einstein (São Paulo). 01/Apr/2017;15(2):241-2.
The importance of apnea in patients undergoing angiography of thoracic vessels – a protocol for acute pulmonary thromboembolism research
DOI: 10.1590/S1679-45082017AI3884
This was 37-year-old woman, 10 days after surgery, who underwent breast prosthesis replacement, abdominoplasty and liposuction. Upon admission, she was hemodynamically stable, febrile and reported constant pain on left hemithorax region, but without dyspnea.
An angio-CT of thoracic vessels was carried out. During intravenous injection of contrast agent, the patient was anxious and started crying during the exam. We believe that, a Valsalva maneuver was performed on inspiration apnea requested during the exam therefore causing an intrathoracic pressure that resulted only in a thoracic aortic contrast (). A new contrast agent was intravenously injected after apnea orientation, and the Valsalva maneuver was not requested, which resulted in precisely diagnostic images (). Two acquisitions were carried out using manual trigger when peak of pulmonary artery contrast occurred ( and ).
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