Biomedical subjects

Telmo Pedro Bonamigo

Publications and source records attributed to Telmo Pedro Bonamigo.

5 recordsLinked to original sources

PubMed2006

Outcome after surgical repair of sealed rupture abdominal aortic aneurysms: a case-control study.

OBJECTIVE: To establish, in a case-control study, the early mortality and long-term survival after surgical correction of sealed rupture abdominal aortic aneurysm, compared to controls who underwent standard, nonruptured abdominal aortic aneurysm repair. PATIENTS AND METHODS: From January 1992 to December 2002, 465 patients underwent infrarenal abdominal aortic aneurysm repair. Of those, 13 had sealed rupture abdominal aortic aneurysm (2.8%). These cases were compared to 26 controlsin which surgical repair was performed immediately preceding or succeeding each one of the sealed rupture abdominal aortic aneurysm surgeries. RESULTS: Age, sex, risk factors for atherosclerosis, associated disease, and cardiac ischemia were similar between groups. Patients with sealed rupture abdominal aortic aneurysm presented a higher incidence of lumbar pain than controls (92.3% versus 3.9%; P < .001); fever and weight loss were detected in 5 (38.5%) patients with SAAA and in none of controls (P = .0022). Mean red blood cell transfusion was greater for sealed rupture abdominal aortic aneurysm than controls (1,516 +/- 697 vs. 773 +/- 463 mL (P = .0003). Postoperative complications were similar between groups. Early mortality was 7.7% for sealed rupture abdominal aortic aneurysm and 0% for controls. Five-year survival was significantly lower for sealed rupture abdominal aortic aneurysm (68.4%) than for controls (84.4%, P = .04). CONCLUSION: We conclude that sealed rupture abdominal aortic aneurysm presents diagnostic and surgical challenges that can be adequately managed, achieving early postoperative mortality and complication rates that are similar to standard abdominal aortic aneurysm. However, patients with sealed rupture abdominal aortic aneurysm present higher mortality in the long term compared with patients having standard abdominal aortic aneurysm.

Aged↗

PubMed2006

[Combined carotid endarterectomy and coronary artery bypass grafting. Analysis of the results].

OBJECTIVE: To evaluate the results of combined surgery (carotid endarterectomy and coronary artery bypass grafting) in patients with concomitant carotid and coronary artery disease. METHODS: The authors reviewed 49 different reports describing several aspects of the combined surgery in 4788 patients to analyze early events in the perioperative period. RESULTS: Overall stroke, acute myocardial infarction (AMI), and mortality rates were 4.3%, 2.2%, and 4.2%, respectively. Most recent papers (1990 to 2000) show significant lower incidence of strokes compared to those published earlier (1972 to 1989) (4.1% x 10.2%; p < 0.05). In this same survey, the incidence of postoperative stroke was higher in the series with a small sample (n < 50) than in those with a larger population (n > 100) (7.2% x 3.9%; p < 0.05), denoting the impact of surgeons' experience on postoperative results. CONCLUSION: In sum, we believe that combined carotid endarterectomy and coronary artery bypass grafting is a safe and effective procedure when performed by experienced and qualified surgeons.

Carotid Artery Diseases↗

PubMed2003

Screening for abdominal aortic aneurysms.

OBJECTIVE AND METHODS: Screening for abdominal aortic aneurysms may be useful to decrease mortality related to rupture. We conducted a study to assess the prevalence of abdominal aortic aneurysms in southern Brazil and to define risk factors associated with high prevalence of this disorder. The screening was conducted using abdominal ultrasound. Three groups were studied: Group 1 - cardiology clinic patients; Group 2 - individuals with severe ischemic disease and previous coronary surgery, or important lesions on cardiac catheterism; Group 3 - individuals without cardiac disease selected from the general population. All individuals were male and older than 54 years of age. The ultrasonographic diagnosis of aneurysm was based on an anteroposterior abdominal aorta diameter of 3 cm, or on an abdominal aorta diameter 0.5 cm greater than that of the supra-renal aorta. RESULTS: A total of 2.281 people were screened for abdominal aortic aneurysms in all groups: Group 1 - 768 individuals, Group 2 - 501 individuals, and Group 3 - 1012 individuals. The prevalence of aneurysms was 4.3%, 6.8% and 1.7%, respectively. Age and cigarette smoking were significantly associated with increased prevalence of aneurysms, as was the diagnosis of peripheral artery disease. DISCUSSION: We concluded that screening may be an important tool to prevent the mortality associated with abdominal aortic aneurysms surgery. Additionally, the cost of screening can be decreased if only individuals presenting significant risk factors, such as coronary and peripheral artery disease, smokers and relatives of aneurysm patients, are examined.

Adult↗

PubMed2002

Rupture of a saccular renal artery aneurysm: report of a case.

This paper reports a patient who was successfully treated for a ruptured renal artery aneurysm. A 64-year-old man presented with sudden onset of strong abdominal and lumbar pain, and a 2-week history of abdominal discomfort. Abdominal computed tomography and visceral arteriography revealed a retroperitoneal hematoma and a 7.5-cm saccular renal aneurysm with active bleeding. A laparotomy was indicated, and a nephrectomy was performed due to the persistent bleeding and refractory hypotension presented during surgery. The postoperative course was uneventful, and the patient was discharged with a normal renal function on the tenth day. This paper presents the successful management of a ruptured renal aneurysm with a review of the literature, and the management possibilities of such patients is also discussed.

Aneurysm, Ruptured↗

PubMedDate not supplied

Leiomyosarcoma of the inferior vena cava--a case report.

This paper presents a patient successfully treated for leiomyosarcoma of the vena cava, with no recurrence or symptoms on an 8-year follow-up. A 56-year-old woman presented with chronic and progressive periumbilical and right upper abdominal pain. Physical examination and laboratory tests revealed no abnormalities. Computed tomography showed a high-density image inside the vena cava. Cavography showed a filling defect with complete occlusion of the vena cava involving the renal veins and greatly developed collateral circulation through lumbar veins. Laparotomy was performed and a large caval mass involving the renal veins was dissected and resected. Venous reconstruction was undertaken using a 19-mm bovine pericardium prosthesis (Labcor, MG-Brazil) interposed as a substitute to the vena cava, and the renal veins were anastomosed to the side of the graft. Pathologic examination confirmed a leiomyosarcoma with free surgical margins. The postoperative course was uneventful and the patient was discharged on postoperative day 8. The venous flow through the inferior vena became normal, as confirmed by later cavography. This paper presents a case of successfully managed leiomyosarcoma of the vena cava with a thorough review of the literature. The treatment of such patients and the use of bovine pericardium are also discussed.

Blood Vessel Prosthesis Implantation↗