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M Maynar

Publications and source records attributed to M Maynar.

64 records · Page 4Linked to original sources
PubMedDate not supplied

Treatment of complete and partial obstruction of the nasolacrimal system with polyurethane stents: initial experience.

PURPOSE: To present our experience in the treatment of nasolacrimal occlusion by means of polyurethane stents. METHODS: Forty polyurethane stents were placed under fluoroscopic guidance in 35 consecutive patients with epiphora due to total or partial obstruction of the nasolacrimal system. The set designed by Song was used in all patients. The procedure was performed by introducing a guidewire through the superior punctum into the canaliculus and advancing it across the obstruction into the inferior meatus of the nasal cavity. After pulling out the guidewire, the stent was advanced in retrograde fashion and released into the sac and the nasolacrimal duct. RESULTS: The technical success rate was 100%. The average time for the procedure was 25 min (range 10-60 min). Immediate complications were: mild pain (n = 5), severe pain (n = 1), minimal epistaxis (n = 7), and moderate epistaxis (n = 1). No major complications occurred. The last clinical control revealed complete resolution of epiphora in 35 eyes and partial resolution in four; one patient did not improve. CONCLUSION: This technique for treatment of obstruction of the nasolacrimal system is simple and safe, and may obviate the use of more invasive procedures.

Adult↗
PubMedDate not supplied

Treatment of renovascular hypertension with percutaneous transluminal angioplasty: experience in Spain.

PURPOSE: The clinical results of percutaneous transluminal angioplasty (PTA) were evaluated in patients with renovascular hypertension, and the effect of PTA on blood pressure and renal function was determined. PATIENTS AND METHODS: Between February 1982 and December 1990, 93 hypertensive patients underwent 123 renal artery PTA procedures. Mean patient age was 43.4 years (range, 12-78 years). Average baseline blood pressure was 162/111 mm Hg (range, 140-230/95-150 mm Hg). The cause of renovascular hypertension, as determined with angiography, was atherosclerosis in 37 patients, fibromuscular dysplasia in 27, and mixed disease in one; 28 patients had renal transplant arterial stenosis. RESULTS: In patients with atherosclerotic renal vascular disease or fibromuscular renal artery stenosis, systolic and diastolic blood pressure decreased significantly (P < .001) at 96 months after PTA. In patients with renal transplant arterial stenosis, blood pressure also decreased significantly (P < .001) at 12 months after PTA. Technical success was achieved in 78% of patients with atherosclerosis, 92% of patients with fibromuscular dysplasia, and 76% of patients with renal transplants. Complications were seen in 4.8% and were related to renal failure and vessel dissection. CONCLUSION: PTA is the therapy of choice in patients with renovascular hypertension due to fibromuscular dysplasia. Patients with atherosclerotic renal artery stenosis or stenosis of a renal artery in a transplanted kidney should be selected according to the anatomy of the lesion and clinical patient characteristics.

Adolescent↗
PubMedDate not supplied

Cragg Endopro System I: early experience. I. Femoral arteries.

PURPOSE: This work describes the early experience with the Cragg Endopro System I. The safety and efficacy of this device in the treatment of atherosclerotic lesions of the femoral arteries are evaluated. MATERIALS AND METHODS: Eleven patients with complex femoral artery lesions were treated. Ten patients presented with femoral artery occlusion and one had a 90% stenosis. All patients had life-style limiting claudication. Associated comorbid states included smoking (n = 10), hypertension (n = 4), hyperlipidemia (n = 5), coronary artery disease (n = 3), and diabetes (n = 1). The stents were dilated to the size of the native artery in the first three patients. The protocol was modified and stents were overdilated by 1 mm in the remaining eight patients. An anticoagulation regimen was used in the first three patients and modified per protocol requirements in the remaining eight. Prophylactics antibiotics were given before the procedure. Follow-up studies included Doppler ultrasound and intravenous and intraarterial digital subtraction angiography. RESULTS: An antegrade femoral approach was used. Stent placement was successful in all patients. The mean lesion length was 9.9 cm (4-18 cm). Mean ankle/brachial index before treatment was 0.65 and increased to 0.87 after treatment. Mean follow-up was 17.2 months, and one patients was lost to follow-up. Complications included sepsis (n = 1), fever (n = 2), severe pain (n = 4), thrombosis (n = 5), and hematoma (n = 2). Stent patency was improved after protocol modifications. Overall primary patency rate was 45% and secondary patency was 56%. CONCLUSION: This early experience with the Cragg Endopro System I shows that recanalization of long femoral occlusions and stent-graft placement is feasible. The primary and secondary patency rates are low and the complication rate is high. Improved patency rates are expected with a more aggressive anticoagulation regimen and stent overdilation.

Aged↗
PubMedDate not supplied

Treatment of chronic iliac artery occlusions with guide wire recanalization and primary stent placement.

PURPOSE: To evaluate the results of primary stent placement without initial thrombolysis in the treatment of iliac occlusions. MATERIALS AND METHODS: During a 3-year period, 61 iliac artery occlusions were treated in 59 patients. The mean length of the occluded segment was 10 cm (range, 4-25 cm). The occluded arteries were treated with primary placement of self-expandable metallic stents. RESULTS: Successful recanalization with primary stent placement was possible in 56 of 61 occlusions (92% technical success rate). Mean Doppler ankle/brachial index increased from 0.51 to 0.90 immediately after treatment and was 0.91 on the last follow-up (P < .05). Primary patency rate at 24 months was 73%, and secondary patency rate was 88%. Procedural complications included distal embolization (n = 4) and an episode of massive intra-abdominal bleeding. Three patients developed a hematoma at the puncture site that did not require additional therapy. Late complications included stent occlusion (n = 9) and significant stenosis related to intimal hyperplasia (n = 1). Mean follow-up period was 29 months (range, 7-55 months). CONCLUSION: Primary stent placement is an effective therapeutic option for iliac artery occlusions.

Aged↗
PubMedDate not supplied

[Percutaneous transluminal angioplasty (PTA), 10 years of experience].

Authors present their experiences during 10 years (1980-89) with the treatment of peripheral arteriopathies with the ATP. Between a total of 455 procedures, an accumulative permeability of 82% in the iliac sector and 71% in the femoro-popliteal sector in elective indications was reached. The total availability of this therapeutic method, the accurate selection of indications and the valious cooperation between Angioradiology and Vascular Surgery Departments should be noted.

Angioplasty, Balloon↗
PubMedDate not supplied

[Fluoroscopy-controlled percutaneous gastrostomy in ambulatory care. Our experience].

The present article describes our experience and evolution of 96 patients who underwent 96 percutaneous gastrostomies with fluoroscopic control. In 74 cases (75.5%), the procedure was performed in the out patient setting. There was technical success in 100%. 17.3% (n = 17) of the patients had permeability problems. There was an accidental catheter exit in 2% (n = 2) of the cases, and gastro-esophageal reflux in 9.1% (n = 9).

Adolescent↗