Hemangiopericytoma of the navicular: a case report.

Hemangiopericytoma is a tumor of vascular origin usually found in the soft tissue. Manifestation in bone is extremely rare and are most commonly located in the pelvis and the lower extremity. This is the first case of hemangiopericytoma in the bone of the foot known to the authors.

Treatment of pulmonary hypertension during surgery with nitric oxide and vasodilators.

Purpose: To describe the effects of the combination of several therapies on the pulmonary circulation and cardiac function in a patient with severe pulmonary hypertension.

Clinical Features: We report the case of a female patient with chronic secondary pulmonary hypertension and cardiac failure who underwent right hemicolectomy under general anesthesia. Insertion of a pulmonary artery catheter before the operation revealed pulmonary artery pressure (PAP) of 55/24 mm Hg which was lowered moderately by 40 parts per million (ppm) inhNO.

Detection of gas embolism by transesophageal echocardiography during laparoscopic cholecystectomy.

Using transesophageal echocardiography (TEE), 16 patients (ASA physical status I-III), undergoing laparoscopic cholecystectomy, were assessed for the occurrence of episodes of gas embolism and cardiovascular changes related to those emboli. The long-axis four-chamber view was monitored continuously, except for predetermined intervals where the transgastric short-axis view was obtained to derive the end-diastolic area (EDA), the end-systolic area (ESA), and the ejection fraction (EF). In one patient, we monitored the longitudinal view of the superior and the inferior vena cava.

Venous carbon dioxide embolism in pigs: an evaluation of end-tidal carbon dioxide, transesophageal echocardiography, pulmonary artery pressure, and precordial auscultation as monitoring modalities.

We evaluated the effects of CO2 embolism on end-tidal carbon dioxide (ETCO2) and compared four methods for detection of gas embolism. Fourteen pigs were monitored for CO2 embolism with transesophageal echocardiography (TEE), changes in ETCO2, changes in mean pulmonary artery pressure (MPAP), and precordial auscultation (AUSC). Serial injections of CO2 (ranging from 0.

[Cysts of the choledochus in children: experience of the Sainte-Justine hospital].

Choledochal cyst remains a rare pathology in western countries. Over the past 15 years, 18 children were diagnosed with choledochal cyst at Hospital Sainte-Justine. There were 14 girls and 4 boys with an average age of 7.