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Biomedical subjects

Heron E Rodriguez

Publications and source records attributed to Heron E Rodriguez.

10 recordsLinked to original sources
PubMed2006

Excision of internal jugular vein for catheter-related thrombophlebitis.

This report describes a case of internal jugular vein (IJV) thrombophlebitis refractory to intravenous (IV) antibiotics and anticoagulation managed with ligation and excision of the vein. Our patient was immunosuppressed for a transplanted organ and developed a catheter-related infection following major pelvic surgery. His symptoms worsened, and failure of medical management prompted operative intervention. Excision of the inflamed, thrombosed vein led to complete resolution of his symptoms.

Catheterization, Central Venous↗
PubMed2005

Arteriovenous access: managing common problems.

The creation and maintenance of hemoaccess occupies a significant portion of most vascular and general surgery practices. In this article, the methods used to detect hemoaccess at risk for failure and the endovascular and surgical techniques used to prolong or restore their patency are reviewed. Also, the management of hemoaccess infection, aneurysmal degeneration, false aneurysm formation, and symptomatic arterial steal syndrome are described.

Aneurysm, False↗
PubMed2005

Aortic endograft migration.

Despite the popularity of endovascular repair of abdominal aortic aneurysms, important issues regarding its long-term efficacy and durability remain. Many hemodynamic and biomechanical forces interact between the endograft, its attachment systems, and the aortic wall. Migration is the longitudinal movement of all or part of the stent-graft. When the magnitude of this displacement is such that endograft seal is lost, repressurization of the previously excluded aneurysmal sac can result. This can lead to catastrophic consequences. In this article, we review the definition, prevalence, diagnosis, clinical implications, and management of stent-graft migration.

Aortic Aneurysm, Abdominal↗
PubMed2004

Thoracoscopic transillumination in chest wall resection.

Determining the extent of chest wall resection during en bloc lung cancer operations is often difficult secondary to the location of these tumors. We describe a hybrid technique that employs video-thoracoscopy and chest wall transillumination to determine the appropriate margin of resection.

Adult↗
PubMed2003

Percutaneous drainage and explanation of an infected aortic endoluminal stent graft.

Endoluminal repair of abdominal aortic aneurysms (AAAs) has undergone explosive growth in the last decade. Although immediate benefits are attractive to both the patient and the treating physician, concerns regarding long-term success have dampened sustained enthusiasm for this technique. A rare but catastrophic complication is stent graft infection. This case report describes an early infection of an endoluminal aortic stent graft treated initially with percutaneous drainage and ultimately with staged extraanatomic bypass and graft explantation.

Aged↗
PubMed2002

Occlusion of an intraluminal endovascular stent graft after treatment of a ureteral-iliac artery fistula.

Ureteral-arterial fistulas are rare causes of intermittent and often massive hematuria. We report the case of a patient presenting with massive hematuria and shock caused by a ureteral-iliac fistula initially treated with a covered endovascular stent graft. Eight months after deployment, the stent occluded, and the patient required a femoral-femoral bypass. This is the first known case of endovascular stent graft occlusion when used for this purpose.

Female↗
PubMed2002

Congenital absence of the external carotid artery: atherosclerosis without a bifurcation.

We report the case of a patient with congenital absence of the external carotid artery in whom we performed a carotid endarterectomy. The radiographic features and operative findings are presented. Four similar cases previously reported in the literature are reviewed. A comment on the pathophysiology of atherosclerosis at the carotid bulb in the absence of a bifurcation and a brief discussion on the possible embryologic explanation of this anomaly are discussed.

Aged↗
PubMedDate not supplied

Abdominal wall hernias after open abdominal aortic aneurysm repair: prospective radiographic detection and clinical implications.

The purpose of this study was to evaluate the prevalence of radiographically detected abdominal wall defects (AWD) after open abdominal aortic aneurysm (AAA) repair and to correlate it with prospectively gathered clinical information. Fine collimation, high-resolution, serial follow-up computed tomography (CT) scans for 99 patients in the control group of the Guidant Ancure device trial were reviewed. CT scans were obtained at 12, 24, 36, 48, and 60 months. AWDs, defined as discontinuity of the fascial layer with protrusion of abdominal contents, were identified. Clinical information regarding AWDs was retrieved from the study registry. The prevalence of AWD exceeds 20% and plateaus at 24 months. Eight patients (8%) had clinical evidence of ventral incisional hernias. One patient underwent repair, but no other patient developed hernia incarceration or intestinal obstruction or required additional procedures related to the AWD. AWDs are radiographic findings occurring frequently after open AAA repair. Radiographic evaluation is more sensitive than clinical observation for detection of ventral hernias. Clinical events and reinterventions related to these radiographic abnormalities are rare.

Aortic Aneurysm, Abdominal↗
PubMedDate not supplied

Percutaneous biopsy in evaluation of lung nodules.

Management of an indeterminate pulmonary nodule is a diagnostic challenge that commonly confronts primary care physicians and specialists. Patients often present with this radiographic finding in the course of an unrelated medical evaluation. We examined our institution's experience with percutaneous biopsy of lung nodules to determine the impact of this procedure on overall patient care. Although significant complications are uncommon, the expedience of percutaneous lung biopsy often supplants a surgical opinion prior to initiation of therapy without added diagnostic benefit or cost-savings. Hence, we caution practitioners to use this technique as an adjunct to diagnosis and not a substitute for multidisciplinary care.

Biopsy, Needle↗