Nicolas Chavanis

Learn More
The objective of this study was to standardize surgical treatment of cervicothoracic hematoma due to parathyroid gland rupture. Only 19 such hematomas have been reported in the literature, and there is no consensus about the best time to operate or the surgical approach. We have now treated four new cases of extensive hematoma from the time of the initial(More)
OBJECTIVE We consider the short- and long-term outcomes of the repair of the isolated partial atrioventricular (AV) septal defect to determine the role played by the atypical forms on the initial AV valve replacement and on the risk of reoperation. METHODS Two hundred and eight patients underwent an operation for this malformation between 1974 and 2001.(More)
The Fas/Fas ligand and mitochondria pathways have been involved in cell death in several cell types. We combined the genetic inactivation of the Fas receptor (lpr mice), on the one hand, to the pharmacological inhibition of the mitochondrial permeability transition pore (mPTP), on the other hand, to investigate which of these pathways is predominantly(More)
BACKGROUND Cardiac myxoma is generally considered to be a surgical emergency. However, as a result of progress in echocardiography and the increasing age of the patients presenting with this disease, the clinical presentation has changed and the management of cardiac myxoma now needs to be reviewed. METHODS Between 1978 and 2001, 40 patients (16 men and(More)
INTRODUCTION Leydig cell hyperplasia (LCH) of the testis is rarely described in children. The authors report a case of incidental discovery of LCH on ultrasound examination. CASE REPORT The authors report the case of a 9-year-old boy presenting with isolated and painless increased volume of the left testis, with no clinically palpable mass. Scrotal(More)
Figure 1: The trocar was left in place after two attempts at bone marrow biopsy. Median sternotomy was performed without removing the trocar. The aorta was repaired off-pump, by placing a purse-string suture around the biopsy needle. Figure 2: CT shows injury of the anterior wall of the ascending aorta by the biopsy trocar. The patient was immediately(More)
STUDY OBJECTIVES To examine the results of right heart derivations and clinical outcomes according to preoperative characteristics and operative strategy implemented. METHODS Fontan operations were performed in 65 patients (mean age = 10.3 years, 41 males). The majority of cardiopathies were single ventricles (SV) with (49% of patients) or without (26%)(More)
Results: 59 consecutive patients included between 1997 and 2011, mean age=65±10,i schemic disease in 41 (70%),heart failure symptoms in all, LVEF= 36±6%,ERO=41±17 mm2.Surgical procedures included 12UA and 47 MVR with only 8 (13%)concomitant CABG. MVR and UA groups were comparable for age, ischemic etiology, LVEF, ERO and sPAP (all p>0.5).Inhospital(More)
Aortic valve sparing operations are now widely accepted for ascending aortic aneurysm surgery. We herein report our experience of the Tirone David procedure in larger indications. From January 1997 to August 2003, 50 Tirone David procedure have been performed on 36 male and 14 female (mean age: 60 +/- 15). Five patients presented a Marfan disease and 4(More)
  • 1