Publications by authors named "Gissler H"

This case report presents a unique manifestation of complications in a 71-year-old man following blunt renal trauma. Initially, computed tomography (CT) revealed a traumatic left kidney laceration. Hematuria ceased quickly after ureteral stent placement.

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This case report describes a unique manifestation of a primary urethral squamous cell carcinoma (SCC) as the underlying pathology in an 80-year-old male patient who underwent partial penectomy due to an enlarging penile mass. Persistent pain in the right knee was discovered to be a pathologic fracture using magnetic resonance imaging. Computed tomography-guided biopsy confirmed metastatic SCC.

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Objectives: Atherosclerosis of iliac arteries is widespread. As inflow vessels, they are of great clinical significance and increasingly being treated by endovascular means. Most commonly, stents are implanted.

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Purpose: To evaluate the safety and efficacy of the Misago self-expanding rapid-exchange nitinol stent system for the treatment of femoropopliteal occlusive disease in a prospective multicenter observational trial (ClinicalTrials.gov; identifier NCT01118117).

Methods: Between April and October 2008, the registry enrolled 744 patients (496 men; 69 ± 10 years) who had symptomatic ≥ 70% stenosis or occlusion of the superficial femoral or popliteal arteries treated with the Misago stent.

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Purpose: To evaluate the long-term efficacy and integrity of the PROTEGE EverFlex stent in superficial femoral artery (SFA) lesions in symptomatic patients with peripheral artery disease (PAD).

Methods: A prospective, multicenter, nonrandomized study enrolled 151 subjects (111 men; mean age 67.8 years, range 42-93) undergoing percutaneous treatment of de novo, restenotic, or reoccluded SFA lesions between August 11, 2006, and June 26, 2007.

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Purpose: This prospective study was undertaken to determine the success rate, complications, and outcome of carotid artery stenting (CAS) without the use of cerebral protection devices.

Methods: During 12 months, 94 high-grade stenoses of the carotid artery in 91 consecutive patients were treated. Sixty-six (70%) of the stenoses were symptomatic and 28 (30%) were asymptomatic.

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Purpose: To determine the feasibility and safety of angioplasty or angioplasty and stenting of extra- and intracranial vertebral artery (VA) stenosis.

Methods: In 16 consecutive patients (9 men, 7 women; mean age 61 years, range 49-74 years) 16 stenotic VAs were treated with angioplasty or angioplasty and stenting. Eleven stenoses were localized in V1 segment, 1 stenosis in V2 segment and 4 stenoses in V4 segment of VA.

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Our objective was to assess the technical feasibility and the clinical results of internal carotid artery (ICA) stenting using a nitinol self-expanding stent (SMART stent). In 13 patients 13 high-grade stenoses of the internal carotid artery were treated via an implantation of a SMART stent. In all cases a predilation of the stenosis and a postdilation within the stent were performed.

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Background And Purpose: Concern regarding the safety of stent implantation in the carotid artery exists because of the risk of cerebral embolization during the procedure. The purpose of this prospective study was to determine the incidence of new areas of cerebral ischemia, as detected by using diffusion-weighted MR imaging after stent implantation in the carotid artery.

Methods: Diffusion-weighted MR imaging of the brain was performed in 67 patients with 70 high-grade stenoses of the carotid artery before and 24 hours after stent implantation.

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Purpose: To assess the technical feasibility and the clinical results of cerebral protection with the Angioguard emboli-capture guidewire system during carotid artery stenting (CAS) for high-grade stenoses.

Methods: In 20 patients 20 stenoses of the internal carotid artery were treated with stent implantation. In all patients diffusion-weighted (DW) magnetic resonance imaging (MRI) of the brain was performed before and 24 hr after the procedure.

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Article Synopsis
  • This study compared a digital chest radiography system with conventional radiography to see which better visualizes chest anatomy.
  • The research involved 115 patients, with three radiologists analyzing posteroanterior (PA) and lateral images based on 20 specific anatomic regions.
  • Results showed that the digital system outperformed conventional methods for most PA views but had mixed results for lateral images, suggesting further adjustments could improve its effectiveness.
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Article Synopsis
  • Concerns exist regarding the safety of revascularization procedures for brain-supplying vessels due to risks of cerebral embolization, and the study aims to investigate diffusion abnormalities using MR imaging post-procedure.
  • A total of 37 procedures were performed on 32 patients, with diffusion-weighted MR imaging conducted before and 24 hours after the procedures to track changes in the brain.
  • Results revealed new hyperintense lesions on MR images after 22% of procedures, predominantly in areas supplied by the treated vessels, but none of the patients displayed new neurological symptoms, indicating a need for further examination of the implications of these findings.
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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.

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Purpose: To assess the technical feasibility and the results of cerebral protection with the GuardWire Plus Temporary Occlusion & Aspiration System during carotid artery stenting for high-grade stenosis.

Patients And Methods: In 20 patients 20 carotid artery stenoses were treated with stent placement under cerebral protection. A contralateral carotid occlusion was an exclusion criteria for the use of the protection device.

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Stent angioplasty of atherosclerotic carotid artery stenosis has proven its benefit in 912 treated vessels with a success rate of 99% and a rate of permanent neurological deficit of 2.7%. The procedure is indicated in symptomatic patients with a stenosis of > 70% and in asymptomatic patients > 80%.

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We report a case of congenital absence of the cervical and petrous part of the left internal carotid artery, the middle and proximal part of the basilar artery, and the V4 segment of the left vertebral artery associated with a left persistent trigeminal artery and a coarctation of the aorta. The left cerebral vessels are supplied via the anterior communicating artery and the left persistent trigeminal artery. The coexisting coarctation of the aorta led to a subclavian steal phenomenon.

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Purpose: The object of this study was to evaluate the diagnostic accuracy of the stereotactic large core breast biopsy in the histological assessment of mammographically suspicious lesions.

Material And Methods: In 106 patients with a mammographically suspicious lesion, 67 with a mass (55 non-palpable, 12 palpable and 39 with microcalcification stereotactic large core biopsies were performed. Samples were obtained in the prone position under local anesthesia with a 14-gauge needle and an automated high-speed gun.

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Endovascular treatment of abdominal aortic aneurysms (AAAs) with stent-grafts is increasingly performed. Recent studies have shown that stent-graft placement for AAA is technically feasible and can effectively exclude aneurysms from the circulation. However, complications related to the procedure, such as graft thrombosis, migration of the prosthesis, peripheral embolization, and leaks with incomplete exclusion of the aneurysmal sac, have been reported.

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Purpose: Angioplasty and stent placement of atherosclerotic internal carotid artery stenosis (ICA) are evaluated based on own experiences with the method and reports of other groups and are compared with vascular surgery.

Methods: ICA-stenoses of more than 70% were treated by angioplasty and stent placement mainly using the Wallstent. The patients had follow-up examinations with an angiogram after 6 months and colour-coded duplex ultrasound at regular intervals.

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Bronchiolitis obliterans with organizing pneumonia (BOOP) is a clinicopathological syndrome of unknown etiology. Histopathologically, it is characterized by plugs of fibroplastic connective tissue within respiratory bronchioles, mononuclear cell infiltrates in parenchyma adjacent to the affected bronchioles and foam cells within alveolar air-spaces. The disease usually presents as a subacute illness with complete resolution.

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Mesenteric cysts are considered as a rare cause of abdominal complaints. Histologically, several specific types can be distinguished: lymphangioma, nonpancreatic pseudocyst, enteric duplication cyst, enteric cyst and mesothelial cyst. Histopathological classification and radiological findings in two cases of mesenteric cysts are presented, and, with regard to the literature, radiological appearance and differential diagnoses are discussed.

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