1.Analysis of Peripheral Vascular Injuries Associated with Catheterizations.
Hiromi Yano ; Naoki Konagai ; Mitsunori Maeda ; Mikihiko Itou ; Taisuke Matsumaru ; Tatsuhiko Kudou ; Masaharu Misaka ; Shin Ishimaru
Japanese Journal of Cardiovascular Surgery 2002;31(1):33-36
During a 9-year period from January 1991 through December 2000, 30 patients underwent surgical interventions for peripheral vascular injuries associated with catheterizations. Pseudoaneurysm, the most frequent complication, was seen in 19 patients (63.3%). This was followed by arteriovenous fistula in 6 patients (20%), uncontrolled hemorrhage in three (10%), arterial thrombosis in one (3.3%), and pseudoaneurysm complicated with arteriovenous fistula in one patient (3.3%). We performed repair of the puncture site in 26 patients (86.6%), followed by arterial ligation in two (6.6%), thrombectomy combined with percutaneous transluminal angioplasty and aneurysmectomy in one patient (3.3%) respectively. There was a tendency for patients to have diabetes mellitus or hypertension. Though secondary suture had to be performed in two patients with wound infection postoperatively, there was no other complication. In pseudoaneurysmal patients proximal arterial control followed by direct incision into the aneurysm cavity and tangential finger pressure over the hole in the artery was a safe method to control bleeding. In arteriovenous fistula patients aggressive repair resulted in good outcome. In uncontrolled hemorrhage and arterial thrombosis patients prompt intervention is essential. By using accurate techniques in arterial puncture and adequate arterial compression following removal of the catheter, the incidence of vascular injuries can be reduced.
2.A Case of Hypertrophic Obstructive Cardiomyopathy with Progressive Heart Failure Due toRuptured Mitral Chordae Tendineae.
Hiromi Yano ; Naoki Konagai ; Mitsunori Maeda ; Masaharu Misaka ; Taisuke Matsumaru ; Tatsuhiko Kudou ; Shin Ishimaru
Japanese Journal of Cardiovascular Surgery 2002;31(2):132-135
A 59-year-old man with hypertrophic obstructive cardiomyopathy (HOCM) had been treated by β-blocker for 15 years. Since June 2001 the patient has had symptoms of heart failure on sudden onset. Transesophageal echocardiography showed ruptured mitral chordae tendineae. After medical treatment to improve heart failure, open heart surgery was performed and anterior and posterior ruptured mitral chordae tendineae were recognized. Prosthetic valve replacement was performed. Histopathologic diagnosis of the chordae tendineae was myxoid degeneration. The postoperative course was excellent. Echocardiogram demonstrated that the preoperative left ventricular pressure gradient of 55mmHg reduced to 0mmHg postoperatively, which indicated that the left ventricular outlet stenosis had disappeared. In patients with HOCM accompanied by ruptured mitral chordae tendineae, early diagnosis by transesophageal echocardiography and timely surgical treatment are essential for successful outcome.