Serious primary post-partum hemorrhage, arterial embolization and future fertility: a retrospective study of 46 cases.

BACKGROUND: The guidelines advise arterial embolization in case of post-partum hemorrhage. We evaluated its feasibility and the subsequent fertility. METHODS: A retrospective study has been conducted in our center for the past 10 years (1996-2005). Fifty-two patients experiencing a primary post-partum hemorrhage who were resistant to medical treatment underwent uterine artery embolization and/or hysterectomy. In case of arterial embolization, a follow-up of all the patients was realized, focusing on the preservation of fertility. RESULTS: Six (11.5%) patients underwent hysterectomy straightaway and 46 (88.5%) arterial embolization in the first instance including 35 arterial embolizations after Cesarean section. Embolization was successful among 41 patients (89.1%) and hysterectomy was performed on the 5 (10.9%) others. Overall, 11/24 398 women suffered from a definitive loss of fertility after post-partum hemorrhage. Fertility was studied at least 1 year after the delivery. All patients had a return of normal menses. Sixteen of 41 women (39%) wanted another child and 100% succeeded. Nineteen pregnancies, including two twin pregnancy and one early spontaneous abortion were observed. CONCLUSIONS: Embolization is a safe and effective non-surgical method to resolve post-partum hemorrhage and should be regarded as gold standard in a hemodynamically stable patient. Furthermore, subsequent fertility is not impaired by the procedure.

[Visualization of the intra-stent lumen in the coronary arteries and detection of restenoses with 64-slices tomography scanners with cardiac synchronization: first experience]. / Visualisation de la lumière intrastent des artères coronaires et détection des resténoses au scanner 64 coupes avec synchronisation cardiaque: première experience.

PURPOSE: to assess the value of the new high spatial resolution 64-slice CT (0.4 mm collimation) technology for non-invasive visualization of coronary artery stent lumen and the characterization of significant in-stent restenosis. MATERIALS AND METHODS: a total of 100 stents were visualized in 50 consecutive patients. All CT examinations were performed with a 64-slice CT (sensation 64; Siemens), with a slice thickness of 0.75 mm at 0.5 mm intervals with retrospective gating. Images were evaluated by two readers and the quality of the in-stent lumen was classified on 5-point scale (1 = not visible; 5 = excellent visibility). Fifty-eight stents in 29 patients were also examined by conventional coronary angiography one week after CT examination. Attenuation values were measured in the vessel upstream from the stent and within the stent, using 1 mm2 regions of interest. The intra stent attenuation ratio (ISAR) was calculated as vessel enhancement/intra stent hypodense area. Interobserver agreement was evaluated by kappa statistics, RESULTS: the interobserver agreement was k= 0.82. The in-stent lumen was visible (score > or =3) in 88 stents (88%), with good visibility (> or = 4) in 54% of stents. Unsatisfactory in-stent lumen visibility was associated with heart rate > 65 beat/min (p < 0.001) and stent size < 3 mm (p < 0.0001). In-stent visibility was also lower in circumflex than other arteries (p= 0.02). Thirteen stenoses or occlusions were detected in 8 patients. In-stent restenosis was associated with hypodense areas within the stent. A ISAR>2 was an accurate criteria (2 false positives, 0 false negative) for detection of significant (> 50%) intra-stent restenosis. CONCLUSION: high resolution 64-slice CT allows reliable in-stent visualization for stents of 3 mm or more in diameter, if heart rate is below 65 bpm. Significant restenosis can be detected with a high sensitivity by determining the ISAR. Arch Mal