André M. van Rij
- Diagnosis and Treatment of Venous Diseases
- Venous Thromboembolism Diagnosis and Management
- Aortic aneurysm repair treatments
- Cardiac, Anesthesia and Surgical Outcomes
- Peripheral Artery Disease Management
- Aortic Disease and Treatment Approaches
- Central Venous Catheters and Hemodialysis
- Protease and Inhibitor Mechanisms
- Connective tissue disorders research
- Trace Elements in Health
- Thermoregulation and physiological responses
- Cerebrovascular and Carotid Artery Diseases
- Renal and Vascular Pathologies
- Genetic Associations and Epidemiology
- Lipoproteins and Cardiovascular Health
- Cardiovascular Health and Disease Prevention
- Dermatologic Treatments and Research
- Body Contouring and Surgery
- Coronary Interventions and Diagnostics
- Selenium in Biological Systems
- Blood Coagulation and Thrombosis Mechanisms
- Bariatric Surgery and Outcomes
- Surgical site infection prevention
- Diet and metabolism studies
- Ovarian function and disorders
University of Otago
2015-2024
Australasian College for Emergency Medicine
2020
Dunedin Public Hospital
1987-2018
Royal Society Te Apārangi
2009
British Heart Foundation
2008
The University of Western Australia
2008
The Royal Free Hospital
2008
James Cook University
2008
St Richard's Hospital
2008
University College London
2008
anterior accessory saphenous vein ankle brachial index adjustable compression garments ambulatory phlebectomy Ambulatory Selective Varicose Ablation under Local anaesthesia Aberdeen Vein Questionnaire arteriovenous fistula body mass cyanoacrylate adhesive closure Clinical Etiological Anatomical Pathophysiological (classification) catheter directed foam sclerotherapy common femoral conservative haemodynamic treatment of venous incompetence in outpatients (= French acronym for ‘Cure...
Several sequence variants are known to have effects on serum levels of non–high-density lipoprotein (HDL) cholesterol that alter the risk coronary artery disease.
Anti-Müllerian hormone (AMH) is a gonad-specific hormone, which extensively used as marker of gonadal status. The level serum AMH has high variance in similar individuals for reasons that are unknown. gene promoter contains vitamin D response element may cause status to influence levels. objective the study was determine whether levels related 25-hydroxyitamin [25(OH)D)] This correlative and intervention study. Three cohorts participants were analyzed; mature men (n = 113), premenopausal...
Eighty-seven morbidly obese patients were prospectively randomized to two operations: gastric bypass was performed on 42 and partition 45. Gastric proved be more effective; lost 15% of their original weight at 12 months 21% 18 months. There no failures in the group; 28 45 operations failed group. An additional 60 underwent since completion study. In total series 147 who or partition, there mortality, surgical complication rate 12%. Because pouches anastomoses similar operations, superiority...
Abdominal aortic aneurysm (AAA) is a common human disease with high estimated heritability (0.7); however, only small number of associated genetic loci have been reported to date. In contrast, over 100 now reproducibly either blood lipid profile and/or coronary artery (CAD) (both risk factors for AAA) in large-scale meta-analyses. This study employed staged design investigate whether the these two phenotypes are also AAA. Validated CAD and dyslipidaemia underwent screening using Otago AAA...
Aims To identify drug usage/withdrawal in surgical patients and the relative risk this imposes on postoperative complications. Methods A prospective survey of patients’ medicines, oral intake (food/fluids/ medicines) complications was carried out General Surgical Unit, Dunedin Hospital, Dunedin, New Zealand. Results One thousand twenty‐five general aged ≥ 16 years, were entered into study. Half taking medicines unrelated to surgery. On average these received 9 different drugs (range 1–47)...
Abstract Background Varicose vein surgery is generally considered to have little risk of postoperative deep thrombosis (DVT). This prospective study examined the incidence DVT in patients undergoing varicose surgery. Methods Lower leg veins were assessed before operation by duplex ultrasonography 377 patients, and reassessed 2–4 weeks after surgery, again at 6 12 months. Patients instructed contact a physician if symptoms consistent with occurred scheduled follow-up appointment. Preoperative...
Paraoxonase is an enzyme associated with HDL in human serum that hydrolyzes oxidized phospholipids and inhibits LDL oxidation, which important step atherogenesis. In animals, addition of lipids to the circulation reduces paraoxonase activity, diets rich fat accelerate development atherosclerosis. The current randomized, crossover study was designed compare effect a meal form had been used for deep-frying fast food restaurant control corresponding unused on postprandial (arylesterase)...
This study was undertaken to investigate whether an exercise bout increases muscle protein degradation and amino acid catabolism. The excretion of urea N tau -methylhistidine before after determined for both rats human subjects. ran on a treadmill until they could no longer run. Two groups subjects completed strenuous bouts: one group (runners) 10–12 miles while the other (weight lifters) performed standard power lift routine that lasted approximately 1 h. In rats, elevated first 12 h...
Passive heat induces beneficial perfusion profiles, provides substantive cardiovascular strain, and reduces blood pressure, thereby holding potential for healthy disease populations. The aim of this study was to assess acute responses passive via lower-limb, hot-water immersion in patients with peripheral arterial (PAD) healthy, elderly controls. Eleven PAD (age 71 ± 6 yr, 7 male, 4 female) 10 controls 72 8 2 underwent (30-min waist-level 42.1 0.6°C water). Before, during, following...
Background Intracranial aneurysms ( IAs ), abdominal aortic AAAs and thoracic TAAs ) all have a familial predisposition. Given that aneurysm types are known to co‐occur, we hypothesized there may be shared genetic risk factors for , AAAs, . Methods Results We performed mega‐analysis of 1000 Genomes Project‐imputed genome‐wide association study GWAS data 4 previously published cohorts: 2 IA cohorts (in total 1516 cases, 4305 controls), 1 AAA cohort (818 3004 TAA (760 2212 observed...
Peripheral arterial disease (PAD) is characterized by lower limb atherosclerosis impairing blood supply and causing walking-induced leg pain or claudication. Adherence to traditional exercise training programs poor due these symptoms despite being a mainstay of conservative treatment. Heat therapy improves many cardiovascular health outcomes, so this study tested if was viable alternative for PAD patients. Volunteers with were randomized 12 wk heat ( n = 11; mean age 76 ± 8 yr, BMI 28.7 3.5...
PURPOSE: The aim of this study was to compare the lymphatic drainage colon cancer with anatomic distribution histologic and submicroscopic lymph node metastases. METHODS: Patients attending for colectomy were eligible enter study. At commencement surgery, 40 MBq 99mTc colloidal antimony sulfide in 2 ml Patent Blue dye injected subserosally around tumor. Resection completed a standard fashion. After resection, specimens imaged gamma camera determine site sentinel nodes, then dissected,...
Tests of knowledge, aptitude and psychomotor skills have been used to assess select surgical trainees but none these is reliable in the long term. The industrial quality-control method cusum was performance progress 17 trainees. Trainees were assessed on their ability perform, independently, selected operations using criterion procedure duration. Cusum profiles compared with scores from at least four independent assessors a modified Royal Australasian College Surgeons' mentor form....