升主动脉-颈内动脉自体静脉转流治疗累及左颈总动脉起始部的巨大真性动脉瘤

目的探讨累及左颈总动脉起始部的巨大真性动脉瘤的手术方法。方法回顾性总结1997年2月至2004年6月间3例该病患者的临床资料，均行手术治疗：胸部正中切口显出前纵隔，切开心包及其返折，显露心脏及其大血管，联合颈部切口显出动脉瘤全貌，升主动脉-颈内动脉自体静脉转流后，于主动脉弓上切除动脉瘤。结果3例均于术后7d治愈出院，分别随访8月、5年、7年无动脉瘤复发。结论利用自体静脉行升主动脉-颈内动脉移植技术，经胸部正中切口根治累及左颈总动脉起始部的巨大动脉瘤，具有显露清晰、操作方便、无须切开胸腔、创伤小、恢复快的优点，是一种较好的手术方案。     

Hepatocellular Carcinoma Arising from Nonalcoholic Steatohepatitis: Report of Two Cases

Sporadic cases of hepatocellular carcinoma (HCC) originating from nonalcoholic steatohepatitis (NASH) have recently been reported. Thus, we investigated the prevalence of NASH in patients with HCC. A review of the clinical records of 481 patients who underwent liver resection for HCC in our department between January 1991 and December 2003 revealed only two (0.4%) patients with HCC associated with NASH. Both of these patients had noninsulin-dependent diabetes mellitus, and neither had a history of alcohol consumption or blood transfusion. All serologic markers for hepatitis B and C viruses were negative. Histological examination of the noncancerous hepatic tissue revealed NASH with moderate hepatic fibrosis in one patient and cirrhosis in the other. Thus, clinical follow-up and screening for HCC should be done for patients with hepatic fibrosis caused by NASH, even though this form of hepatitis is an uncommon cause of HCC.     

Endovascular Treatment of Radiation-Induced Petrous Internal Carotid Artery Aneurysm Presenting with Acute Haemorrhage. A Report of Two Cases

Summary  Haemorrhage from rupture of petrous ICA aneurysm can be life threatening and emergency treatment is required. We report 2 cases of radiation-induced petrous internal carotid artery (ICA) aneurysm presenting with acute haemorrhage (epistaxis and otorrhagia) after radiotherapy (RT) for nasopharyngeal carcinoma (NPC). Both patients had a history of RT treatment for NPC. The first patient, a 54-year-old man, presented with sudden severe epistaxis and haemorrhagic shock. The second patient, a 35-year-old man, presented with episodes of severe otorrhagia. The first patient was immediately resuscitated. Obliteration of the aneurysm was performed by endovascular occlusion of the ICA with Guglielmi detachable coils and fibered platinum coils. For the second patient, the aneurysm was treated by deploying a self-expandable stent across the aneurysm neck. In an emergency situation, ruptured petrous ICA aneurysm can be treated with endovascular occlusion of the ICA with microcoils if there is a good collateral blood flow. Alternatively, the aneurysm can be treated by deployment of a stent, which can induce stasis and eventual thrombosis of the aneurysm.     

Managing Anomalous Splenic Artery Aneurysm: A Review of the Literature and Report of Two Cases

The splenic artery originates from the superior mesenteric artery in approximately 1% of cases, which may explain the extreme rarity of aneurysms involving this anomalous branch, with only five cases reported in the international literature to date. We report our experience of managing two patients with aneurysms involving splenic arteries arising from the superior mesenteric artery, one treated surgically and the other percutaneously. From a diagnostic point of view, the first approach is ultrasound, while computed tomographic (CT) scan and angiography enable a better definition of the lesion and of the anatomical anomaly; CT angiography is currently the method of choice for the preoperative workup. Finding these two anomalies in association is so rare that it is impossible to draw any final conclusions as to the best type of treatment. In the authors’ experience, both surgery and percutaneous treatment can prove useful.     

De Novo Vertebral Artery Dissection after Endovascular Trapping for Ruptured Dissecting Internal Carotid Artery Aneurysm: Case Report

The authors present an extremely rare case of a 54-year-old female patient with subarachnoid hemorrhage due to a rupture of a dissecting internal carotid artery (ICA) aneurysm, who developed de novo vertebral artery dissection in the spasm period after endovascular trapping of the ICA. Interestingly, postoperative cardiopulmonary monitoring showed high global end-diastolic volume index and mean arterial pressure, which could contribute to this de novo dissection via hemodynamic stress in the cerebral circulation. Spontaneous intracranial artery dissection of more than two arteries is rare, and we believe this is the first case of de novo dissection occurring on a circulating vessel different from that of the initial dissection. The clinical implications are discussed in relation to postoperative hemodynamic stress with a review of the literature.     

Endoluminal Treatment of Internal Carotid Artery Stenosis

Percutaneous transluminal stent-angioplasty of the carotid artery has indications that are similar but not identical to those for carotid surgery. Certain clinical conditions and morphologic findings, such as myocardial infarction, occlusion of the contralateral carotid artery, or tandem stenoses, favor use of the endoluminal technique. On the other hand, large clots at the site of stenosis, heavily calcified plaques, or elongated, kinked carotid arteries are better suited for carotid endarterectomy. Our experiences with angioplasty of more than 800 carotid stenoses and reports of other groups dealing with carotid angioplasty permit a preliminary evaluation of the method. The technical success rates, complication rates, and the few known long-term results are more or less equal to those of vascular surgery. Therefore further prospectively randomized studies are necessary to determine from which procedure the patient with his or her individual condition can gain the highest benefit.     

Alternative Surgery for the Kinked Internal Carotid Artery

Summary. Background: Carotid kinking can either be a source of emboli or it may cause cerebral ischemia during head/neck rotation. Surgical techniques to correct the kink usually employ carotid cross-clamping and kink resection. In selected cases the authors used simple kink straigthening and fixation. The patients treated by this method were evaluated. Method: Total of 42 operations in 40 patients were performed from 1984 through 1998. Mean age was 56 years, male:female ratio 1:1. Patients presented with either TIAs (n=26), minor stroke (n=13) or were asymptomatic (n=3). There were 2 distinct groups of patients. Group I. were the patients with kinking only (n=28), Group II. the patients in whom the kink was seen at the end of regular carotid stenosis. In all patients the kink was dissected free, straigthened and fixed by several stitches. In the Group II. this manoeuvre followed standard carotid micro-endarterectomy. Findings: Mean follow-up is 4,8 years (1–15). There was no morbidity, no mortality. Only 1 patient suffered several TIAs in the 6 months period after surgery. All patients are alive and symptom free. Interpretation: In lesser kinks the simple surgical technique without cross-clamping is effective, easy and complication free.