Assessment of the Bjork-Shiley Prosthetic Valve Orifice Area in the Aortic Position
スポンサーリンク
概要
- 論文の詳細を見る
The actual orifice area of a valve is still considered to be a valuable index for assessing prosthetic valve function. Valve orifice area as calculated by Gorlin's formula is, however, not constant but changes in proportion to the transvalvular flow rate. The purpose of the present study was to examine the relationship between orifice area and flow rate across the Bjork-Shiley prosthetic valve as calculated by Gorlin's formula, and to modify the formula in a series of patients with the Bjork-Shiley prosthetic valve in the aortic position. Fifty-six patients who had received aortic valve replacement with a Bjork-Shiley prosthetic valve underwent cardiac catheterization. Prosthetic valve orifice area was calculated by Gorlin's formula and then plotted against flow rate across the valve with respect to valve size. The relationship between orifice area and flow was linear. The discharge coefficient of Gorlin's formula was plotted against flow rate, and a linear correlation was obtained. By substituting Gorlin's formula for an empiric coefficient into the function for transvalvular flow rate, a modified formula that can predict the actual orifice area of the prosthetic valve is obtained.
- 社団法人日本循環器学会の論文
- 1998-01-20
著者
-
Tabayashi Koichi
Department Of Cardiovancular Surgery Tohoku University Graduate School Of Medicine
-
Tabayashi Koichi
Department Of Thoracic And Cardiovascular Surgery Tohoku University School Of Medicine
-
Iguchi Atsushi
Department Of Bioresource And Agrobiosciences Graduate School Of Science And Technology Kobe Univers
-
Iguchi Atsushi
Department Of Thoracic And Cardiovascular Surgery Tohoku University School Of Medicine
関連論文
- Clinical manifestations in patients with SOS1 mutations range from Noonan syndrome to CFC syndrome
- PJ-329 Low-dose of Thyroid Hormone Restores Depressed Contractility and Impaired Calcium Handling in Chronically Unloaded Heart in Rats(Cardiac function, basic/clinical-4 (M) PJ56,Poster Session (Japanese),The 70th Anniversary Annual Scientific Meeting of
- Japanese multicenter clinical evaluation of the HeartMate vented electric left ventricular assist system
- Quality of Life in Elderly Patients Following Thoracic Aortic Surgery
- Another Blood Supply to Adamkiewicz's Artery
- Pedicled Pericardial Flap for Pulmonary Artery in Adult Dogs
- Sutureless Ringed Graft Replacement of Descending Thoracic Aorta with Extensive Calcification
- Successful Management of Left Main Bronchial Stenosis as a Rare Complication of Pericardiectomy
- PJ-055 Cardiac Resynchronization Therapy Homogenizes Non-uniform Regional Left Ventricular Wall Thickening Evaluated by Quantitative Gated Myocardial Perfusion SPECT(Heart failure, clinical-18 (M) PJ10,Poster Session (Japanese),The 70th Anniversary Annual
- OJ-076 Usefulness of Quantitative Gated Myocardial Perfusion SPECT to Predict Left Ventricular Reverse Remodeling after Cardiac Resynchronization Therapy(Heart failure, clinical-3 (M) OJ13,Oral Presentation (Japanese),The 70th Anniversary Annual Scientifi
- Expression of the von Willebrand Factor in Atrial Endocardium is Increased in Atrial Fibrillation Depending on the Extent of Structural Remodeling
- The Preconditioned Spinal Cord Enhances of HSP Heat Shock Gene Expression Following Transient Ischemia in Rabbits
- Fontan With Pedicled Pericardium
- Postoperative UFT Adjuvant and the Risk Factors for Recurrence in Renal Cell Carcinoma: A Long-Term Follow-Up Study
- Surgical Treatment of a Retrosternal Pseudoaneurysm Arising from the Posterior Aortic Root
- PCR-Based Identification of Pandemic Group Vibrio parahaemolyticus with a Novel Group-Specific Primer Pair
- Genotypic Analyses of Vibrio parahaemolyticus and Development of a Pandemic Group-Specific Multiplex PCR Assay
- Spontaneous recombination between homologous prophage regions causes large-scale inversions within the Escherichia coli O157:H7 chromosome
- Genotyping of pandemic Vibrio parahaemolyticus O3:K6 still open to question
- Effects of Lysogeny of Shiga Toxin 2-Encoding Bacteriophages on Pulsed-Field Gel Electrophoresis Fragment Pattern of Escherichia coli K-12
- Effects of Repeated Subculturing and Prolonged Storage at Room Temperature of Enterohemorrhagic Escherichia coli O157:H7 on Pulsed-Field Gel Electrophoresis Profiles
- Results of Aortic Surgery in Patients with Marfan Syndrome
- Left Ventricular Function Following Conventional Mitral Valve Replacement in Patients with Chronic Mitral Regurgitation
- Nonpulsatile artificial baroreflex system
- Development of an Artificial Myocardium
- Surgical Repair for Tracheo-Innominate Artery Fistula with a Muscle Flap
- Replacement of the Ascending Aorta and Aortic Valve with a Composite Graft : Operative and Long-Term Results
- Successful Surgical Management of Patients With Infective Endocarditis Associated With Acute Neurologic Deficits
- Use of an Extracorporeal Left Ventricular Assist System after Acute Myocardial Infarction due to Occlusion of the Left Main Coronary Artery
- Induction of IL-1β-converting enzyme-independent apoptosis by IL-2 in human T cell lines
- Suppression of T-h1 cell activation and prevention of autoimmune diabetes in NOD mice by local expression of viral IL-10
- Development of a Simple Method to Construct Finite Element Models of Aortas from MRI Images and Its Application to Thoracic Aortic Aneurysm
- Right ventricular myxoma obstructing the pulmonary artery during early childhood
- Protection from postischemic spinal cord injury by perfusion cooling of the epidural space during most or all of a descending thoracic or thoracoabdominal aneurysm repair
- Redo total aortic arch replacement using an extended homograft for graft infection
- Warfarin-Intractable, Intraatrial Thrombogenesis in A 52-Year-Old Woman with Mitral Stenosis and Chronic Atrial Fibrillation
- Aortic Root Replacement with a Stentless Bioprosthesis in a Patient with Giant Cell Arteritis
- Successful Surgical Treatment for Impending Rupture in Acute Type A Dissecting Aneurysm complicated With a Thoracoabdominal Aortic Aneurysm in an Octogenarian
- The protective effects of TV-12533, a novel sodium hydrogen inhibitor, and diazoxide on cardiac allgraffs from non-heart-beating donors
- Increased synthesis of von Willebrand factor in the endocardial endothelium as a prothrombotic alteration in atrial fibrillation involving structural remodeling
- Prognosis of patients with medically treated Stanford type B aortic dissection
- Vacuum-assisted Closure System for the Treatment of Mediastinitis after Total Aortic Arch Replacement
- Cardioprotective Effect of Orally Administered Angiotensin-Converting Enzyme Inhibitor Against Ischemia : Reperfusion Injury in the Isolated Rat Heart
- Thoracic Aortic Aneurysm Repair : Improvement in Operative Results and its Background
- Surgical Treatment of Patients with Distal Aortic Arch Aneurysm
- Nicorandil Pretreatment and Improved Myocardial Protection During Cold Blood Cardioplegia
- Intestinal-type mucinous adenocarcinoma arising from the prostatic duct
- Cryopreserved Aortic Homograft Replacement in a Patient With Takayasu's Arteritis
- Outcome of Medically Treated Stanford Type B Aortic Dissection
- Assessment of the Bjork-Shiley Prosthetic Valve Orifice Area in the Aortic Position
- Aneurysm of a Patent Ductus Arteriosus in an Adult
- Spinal Cord Protection During Thoracoabdominal Aneurysm Repair
- Preoperative Autologous Blood Donation and Plateletpheresis in Patients Undergoing Elective Cardiac Operations : Factors That Influence the Need for Homologous Blood Transfusion
- Biaxial Tensile Properties of Thoracic Aortic Aneurysm Tissues