Sérgio Kuzniec

ORCID: 0000-0003-2722-4007
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About
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Research Areas
  • Vascular Procedures and Complications
  • Venous Thromboembolism Diagnosis and Management
  • Peripheral Artery Disease Management
  • Muscle and Compartmental Disorders
  • Central Venous Catheters and Hemodialysis
  • Cerebrovascular and Carotid Artery Diseases
  • Sympathectomy and Hyperhidrosis Treatments
  • Aortic aneurysm repair treatments
  • Cardiovascular Health and Disease Prevention
  • Acute Ischemic Stroke Management
  • Diagnosis and Treatment of Venous Diseases
  • Atrial Fibrillation Management and Outcomes
  • Nietzsche, Schopenhauer, and Hegel
  • Liver Disease and Transplantation
  • Glycogen Storage Diseases and Myoclonus
  • Diabetic Foot Ulcer Assessment and Management
  • Renal and Vascular Pathologies
  • Kawasaki Disease and Coronary Complications
  • Cardiac, Anesthesia and Surgical Outcomes
  • Infectious Aortic and Vascular Conditions
  • Spinal Fractures and Fixation Techniques
  • Abdominal vascular conditions and treatments
  • Trauma Management and Diagnosis
  • Healthcare during COVID-19 Pandemic
  • Bone fractures and treatments

Hospital Israelita Albert Einstein
2010-2025

Irmandade da Santa Casa de Misericórdia de São Paulo
2016

Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo
2005-2015

Universidade de São Paulo
1995-2006

Hospital Universitário da Universidade de São Paulo
1994

BACKGROUND: Chronic kidney disease (CKD) is a major global public health challenge, affecting up to 13.4% of the population and ranking as third fastest-growing cause death. It projected become fifth leading loss years life by 2040. Advanced CKD necessitates renal replacement therapy (RRT), including hemodialysis transplantation, both which heavily rely on vascular access. Arteriovenous fistulas (AVFs) are preferred for due lower infection risks superior patency compared long-staying...

10.1101/2025.01.15.25320581 preprint EN cc-by medRxiv (Cold Spring Harbor Laboratory) 2025-01-15

Background: Different techniques of video-assisted thoracic sympathectomy have been suggested to control the symptoms axillary hyperhidrosis. We compared results using two different levels ganglion resection for treating hyperhidrosis: T3/T4 vs. T4. Materials and Methods: From a group 1119 patients operated on between July 2000 January 2005, 276 with hyperhidrosis were studied. The mean age was 26 (range, 13–54 years) 61.6% female. Of these patients, 216 (78.3%) treated thermal ablation 60...

10.1089/lap.2006.16.598 article EN Journal of Laparoendoscopic & Advanced Surgical Techniques 2006-12-01

OBJECTIVES: This study compared radiofrequency ablation versus conventional surgery in patients who had not undergone previous treatment for bilateral great saphenous vein insufficiency, with each patient serving as his own control.METHOD: was a randomized controlled trial that included 18 and carried out between November 2013 May 2015.Each of the lower limbs randomly assigned to undergo either or surgery.Clinical features (hyperpigmentation, hematoma, aesthetics, pain, skin burn, nerve...

10.6061/clinics/2016(11)06 article EN cc-by Clinics 2016-01-01

Distal deep venous thrombosis (DVT) accounts for approximately half of all the cases lower limb thrombosis. The impact and management this condition is still controversial. This study aims to evaluate incidence pulmonary embolism (PE) in patients with distal DVT comparison proximal correlation between PE extension.100 acute diagnosed whole leg Doppler ultrasound from January 2006 December 2014 were retrospectively analyzed. Active investigation was carried out using multislice computed...

10.1177/1076029615627343 article EN Clinical and Applied Thrombosis/Hemostasis 2016-01-20

To describe and analyze the results of a public-private partnership between Ministry Health private hospital in project assistance scientific research field endovascular surgery.The flows, costs clinical outcomes patients treated April 2012 July 2013 were analyzed. All underwent surgery stayed at least one day intensive care unit hospital. They also participated protocol to compare two intravenous contrast media used (iodinated carbon dioxide).A total 62 procedures performed 57 from public...

10.1590/s1679-45082014gs3029 article EN cc-by Einstein (São Paulo) 2014-09-01

A claudicação intermitente está frequentemente associada à doença aterosclerótica, mas diagnósticos diferenciais devem ser pesquisados em pacientes sem fatores de risco tradicionais. cística adventicial, etiologia incerta, acomete maior proporção a artéria poplítea e, eventualmente, apresenta-se como intermitente. Apresentamos um caso da e seu manejo cirúrgico, discutimos etiopatogenia, os aspectos terapêuticos enfermidade.

10.1590/s1679-45082014rc2818 article PT cc-by Einstein (São Paulo) 2014-08-21

OBJECTIVES: Compare the use of carbon dioxide contrast medium with iodine for endovascular treatment ilio-femoral occlusive disease in patients without contraindications to iodine.MATERIALS AND METHODS: From August 2012 2014, 21 consecutive who were eligible and lacked either or randomized into groups subjected angioplasty.We analyzed feasibility procedures, surgical clinical outcomes, procedure lengths, material costs, costs quality angiographic images each group. RESULTS:No conversions...

10.6061/clinics/2015(10)03 article EN cc-by Clinics 2015-10-01

To analyze the results of ten angioplasties TASC C and D femoropopliteal lesions using CO2 as primary contrast in patients with no formal contraindication to iodine, aiming decrease allergic reactions potential nephrotoxicity high-risk patients.We describe high risk for open revascularization iodine. We analyzed feasibility procedures, complications, quality angiographic images, clinical surgical outcomes, costs treated medium.The use needed iodine complementation most cases (nine cases) but...

10.1590/s1679-45082016ao3661 article PT cc-by Einstein (São Paulo) 2016-06-01

Rivaroxaban is a target-specific oral anticoagulant approved for the treatment of venous thromboembolism (VTE). On its major clinical trials, was initiated directly with 3-week dose 15 mg twice daily followed by 20 every day at least 3 months. We retrospectively evaluated an initial therapy confirmed VTE 1 to 18 days enoxaparin (1 mg/kg parenteral) rivaroxaban day. Of 49 patients, we found no symptomatic recurrence, bleeding, and only clinically relevant nonmajor bleeding. concluded in this...

10.1177/1076029615621999 article EN Clinical and Applied Thrombosis/Hemostasis 2016-01-05

Giant splenic artery aneurysm is a rare condition that represents an eminent life threatening for the patient, requiring, therefore, urgent surgical correction. A 61-year-old woman, former smoker, hypertensive, hypercholesterolemic and multipara sought our service because of large tumor in mesogastrium, which was abdominal ultrasound finding. Despite size tumor, patient asymptomatic. The angiotomography magnetic resonance image abdomen were suggestive giant with more than 10cm diameter...

10.1590/s1679-45082017rc3873 article EN cc-by Einstein (São Paulo) 2017-07-22

Abstract The incidence of asymptomatic pulmonary embolism (PE) exceeds 70% in patients with deep venous thrombosis (DVT), even cases distal vein thrombosis. We report the case a patient diagnosis DVT lower left limb associated PE who presented late symptoms due to this same PE. absence acute and onset could have provoked doubts about most appropriate treatment, resulting unnecessary interventions, if had not already been diagnosed tomography. In present case, we demonstrate that computed...

10.1590/1677-5449.200124 article EN cc-by Jornal Vascular Brasileiro 2021-01-01

Arterial embolisms in the lower limbs occur frequently, and are of great interest to vascular surgeon. The authors studied 159 cases arterial from January 1991 July 1993. Ages varied 12 98, with a mean 58. Eighty patients were male 78 female. In most cases, etiology embolus was well-established, mainly caused (78 percent) by atrial fibrillation. Occlusion frequent femoral artery (53.4 percent). All presented severe limb ischemia, but not gangrene, on admission. duration between onset...

10.1590/s1516-31801996000400007 article EN cc-by Sao Paulo Medical Journal 1996-08-01

Acute limb ischemia can be potentially harmful to the and life threatening. Renal failure is a possible outcome associated with release of products ischemic reperfusion. Some authors reported benefit performing angiography after embolectomy, even though iodine contrast also nephrotoxic. We report case embolectomy on patient renal insufficiency in whom carbon dioxide was used as substitute for contrast.

10.1590/s1679-45082015rc2997 article EN cc-by Einstein (São Paulo) 2015-06-04
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