Does Biphasic Calcium Phosphate-Coated Surface Increase the Secondary Stability in Dental Implants? A Split-Mouth Study.

Purpose: This study aimed to evaluate biphasic calcium phosphate coating (BCPC) on the secondary stability of dental implants compared to sand-blasted and acid-etched (SLA) implants. Materials and Methods: This is a split-mouth study. Thirty subjects (20 males and ten females) underwent a dental implant procedure to replace mandibular first or second molars bilaterally. The subjects were randomly assigned to BCPC or SLA groups. The resonance frequency analysis measurements were performed two, four, six, and eight weeks after the implant placement. Results: Sixty implants were placed in the two groups (30 implants per group). The mean ISQ was 52.26 ± 3.73 in group 1 and 50.21 ± 2.59 in group 2 on day 14 after the implant insertion, 63.20 ± 2.76 in group 1 and 58.80 ± 2.14 in group 2 on day 28, 72.30 ± 3.15 in group 1 and 64.53 ± 3.19 in group 2 on day 42, and 78.70 ± 1.56 in group 1 and 71.63 ± 3.22 in group 2 on day 56. The data analysis demonstrated significant differences between the two groups in terms of the mean ISQ at various evaluation times. Conclusion: Regarding ISQ measurements, the secondary stability in BCPC implants may be higher compared to SLA implants in two months after implant insertion.

A True Distal Brachial Artery Aneurysm Treated with a Bifurcated Saphenous Vein Graft.

Brachial artery aneurysms are rare, mostly consisting of false ones secondary to infectious, traumatic, or iatrogenic arterial lesions. True aneurysms of the brachial artery are even more uncommon. Here, we report a case of a 40-year-old fisherman, without any pathological antecedent, who presented with a painful pulsatile mass of the left anterior arm. There was a slight edema with no ischemic signs. The computed tomographic angiography revealed a true 3.7 × 4.2 × 6 cm aneurysm of the distal brachial artery, partially thrombosed, which extended to the bifurcation. A surgical repair was indicated. Intervention consisted of an aneurysmectomy with interposition of an autologous reversed bifurcated saphenous vein graft. Early outcome was good and a 1-year follow-up showed a patent graft with no aneurysmal recurrence. A review of the literature on this rare location of true artery aneurysm and treatment options is outlined in this work.

Adolescent coarctation of aorta treated with subclavian-descending aorta bypass grafting.

BACKGROUND: Aortic coarctation in older children most frequently represents cases of re-coarctation following previous transcatheter or surgical therapy or missed cases of native coarctation. METHODS: We describe three cases of adolescents ­ two girls and one boy ­ with aortic coarctation, operated between January, 2012 and December, 2013. Computed tomography angiography was performed as an essential diagnostic procedure. RESULTS: Hypertension was detected, and weaker arterial pulses in the lower limbs were noted in all cases. All operations were performed via left posterolateral thoracotomy. Aortic coarctation was treated surgically, with left subclavian-lower descending thoracic aorta bypass grafting. Postoperative course was uneventful in all cases. No residual brachial-ankle pressure gradient was observed, and all patients have remained in good condition after the operation. CONCLUSIONS: Surgical treatment of aortic coarctation in adolescent patients can be achieved by resection with end-to-end anastomosis, interposition of a graft or bypass graft across the area of coarctation when the distance to be bridged is too long for end-to-end repair. The extra-anatomic subclavian-descending aortic bypass grafting provides good results in adolescent patients, particularly in those with complex coarctation.

Iatrogenic occlusion of the circumflex artery and left ventricle pseudoaneurysm after mitral annuloplasty.

Ischemic iatrogenic lesions can complicate surgical procedures on the mitral valve. One of the causative mechanisms is direct injury to or distortion of the circumflex coronary artery. The risk of damaging the circumflex coronary artery depends mainly upon the proximity of that vessel to the posterior segment of the mitral annulus, and this varies from patient to patient. Herein, we report a case of iatrogenic circumflex coronary artery lesion with left ventricular aneurysm after mitral annuloplasty, in order to highlight a possible relationship between iatrogenic circumflex lesions and coronary dominance in a 70-year-old man who had severe mitral regurgitation. .

[Determinants factors of hospital morbidity and mortality after reintervention of valve replacement]. / Facteurs déterminants dans la morbi-mortalité hospitaliére des réinterventions d un remplacement valvulaire.

BACKGROUND: Valve surgery involves valvular substitutes that expose to different types of complications that can lead to re subsequent interventions. AIM: was to identify the predictors factors of in-hospital morbidity and mortality of re interventions after valve replacement. METHODS: Retrospective study of 73 consecutive patients who underwent a re valve replacement between 1985 and 2010 in the Cardiovascular Surgical department of La Rabta hospital. RESULTS: The average age at further surgery was 44 years ( 15-80 years) and sex ratio of 0.87 . The average time between interventions was 10 years (3 days -33 years). Different etiologies were found prosthesis thrombosis (36.9% ). The overall hospital mortality was 36.9 % , 11 intraoperative deaths and 16 immediate postoperative deaths. CONCLUSION: The iterative intervention of valve replacement surgery is increasingly mastered by the surgical team. According to this study , the prognosis depends mainly on the patient preoperatively state, the cause of further surgery and its mode of occurrence.

Renal angiomyolipoma with Fatty thrombus extending to the right atrium: an exceptional presentation.

This paper reports the case of 34-year-old woman who presented with bilateral renal angiomyolipomas (AMLs). On the right side, there was a large AML with a fatty thrombus extending to the right atrium. The treatment consisted of right nephrectomy and complete thrombectomy with extracorporeal circulation and right atriotomy. Postoperatively, the patient was septic and died on postoperative day 7 because of septic shock.

[Transfusion safety: state of the arts (ART)]. / Sécurité transfusionnelle: etat des lieux.

BACKGROUND: Blood transfusion is a high risk activity. AIM: To evaluate transfusion safety in planned cardiac surgery. METHODS: This study was conducted in the blood bank of the Rabta Hospital in two phases: a phase to observe transfusion acts followed by corrective actions and a phase to evaluate the impacts of these corrections on the transfusion practices. Characteristics of the potentially transfused patients, the eventually prescribed, dispensed and transfused blood products and transfusion practices were studied. RESULTS: During the observation phase, 70 patients were enrolled, 51 potentially transfused. Weaknesses concerned the mention of phenotype and transfusion history when ordering blood components as well as the double ABO/D group typing, the phenotype and the cross match performing. Final bedside controls were done in a wrong way. The distribution and the blood administration were established respectively for 208 and 232 blood products. The traceability was established for 86 blood products. During the evaluation phase, 30 patients were enrolled, 15 potentially transfused. Improvement was achieved in the transfusion history notification, phenotype and antibodies screen performing and cross matching. CONCLUSION: Optimisation of blood transfusion can be conceived only with collaboration between the different transfusion structures.

[Results of surgical treatment of intracardiac total anomalous pulmonary venous return]. / Résultats du traitement chirurgical du retour veineux pulmonaire anormal total intracardiaque :à propos de 7 cas.

BACKGROUND: Total anomalous pulmonary venous return (TAPVR) has a rather low incidence (1-3%) of all congenital heart disease. Intracardiac TAPVR represent 25-30% of all TAPVR. AIM: To report our results and long-term follow-up of surgical management of intracardiac TAPVR. METHODS: Retrospective study of 7 patients with intra cardiac TAPVR treated surgically between Mai 1992 and July 2007. RESULTS: The surgical technique has been an intra atrial procedure in all cases. We didn't report any early post-operative death. Early postoperative complications were principally pulmonary infections. We report one death at three months of follow-up caused by laryngeal stenosis. Late follow-up was good for all patients. CONCLUSION: Good result of surgical treatment of intracardiac TAPVR depends on early diagnosis and adequate surgical technique.

Respiratory failure revealing a multilocular thymic cyst in an infant.

Multilocular thymic cysts are rare benign acquired lesions of the neck and mediastinum. In children, multilocular thymic cysts are usually symptomatic after the age of 2 years and produce few symptoms. We report an unusual case of a multilocular thymic cyst diagnosed in a 3-month-old girl, causing severe respiratory failure. We believe that this unusual presentation has not been previously reported in the literature.

[Atrial septal defects in adults: usefulness of surgical closure]. / Communications interauriculaires de l'adulte: quelle place reste pour la fermeture chirurgicale?

BACKGROUND: The atrial septal defect (ASD) is one of the most common congenital heart diseases in adults. AIM: The objective of our study is to determine the value of the surgical closure of ASD in adults. METHODS: Between January 1990 and December 2006, 87 adult patients underwent surgical closure of ASD. The mean age is 28 years; eighty one patients (93%) were in NYHA class I or II. RESULTS: All patients were operated on with extra corporeal circulation. There were 10% post operative complications, no early or late death. CONCLUSION: surgical closure of ASD in adults given good results and in spite of percutaneous procedures progress surgery keeps some specific indications

[Prosthetic valve endocarditis: about 14 cases]. / La prise en charge chirurgicale des endocardites infectieuses sur prothese valvulaire: a propos de 14 cas.

BACKGROUND: Prosthetic valve endocarditis (PVE) is a serious complication of valve surgery. AIM: The aim of this study is to determine the diagnostic and therapeutic management for PVE. METHODS: It's a retrospective study about 14 cases of PVE operated in the department of cardiovascular surgery of la Rabta hospital between January 1996 and December 2006. RESULTS: In two cases, surgery was performed emergent, in the remnant cases surgery was elective. The coagulase-negative staphylococcus (CNS) is the predominant cause of these PVE.Surgery consisted on seven mitral prosthesis replacements and seven aortic prosthesis replacements.Hospital mortality was 50%. CONCLUSION: In conclusion attention should be made to prevent endocarditis when possible. In case of PVE, an early diagnosis a leads to earlier application of appropriate therapies and improved outcome.