Gordon K. Danielson
Loyola University Medical Center
Internal medicineSurgeryReentrancyCardiologyHemodynamicsPredictive value of testsVentricular pressureSudden cardiac deathAtrioventricular nodeTricuspid atresiaAortic valve replacementHeart blockArterySupraventricular tachycardiaFontan procedureCardiac catheterizationMitral valvePresentation (obstetrics)ReentryHeart failureCoronary artery diseaseTetralogy of FallotCardiac surgeryVentricleDura materAtrial fibrillationAccessory pathwayMEDLINEPulmonary valveTricuspid valveStenosisValve replacementHeart diseaseCryosurgeryRegurgitation (circulation)Infective endocarditisTachycardiaAscitesPulmonary valve stenosisAortic valvePulmonary hypertensionPulmonary arteryCox maze procedureDouble inlet ventriclePopulationTaking medicationComplex congenital heart diseaseTriple valve replacementValvular aortic stenosisRight ventricular dysfunctionElevated pulmonary artery pressureElevated right atrial pressureLate onsetBlood vessel prosthesisSudden deathFollow up studiesNyha classBypass graftingLong term follow upIn patientFunctional statusSurgical morbidityAtrioventricular conductionPerioperativeMyocardial infarctionMedicineElectrical conduit
Publications 11
17 Citations
#1Kritvikrom Durongpisitkul (Loyola University Medical Center)H-Index: 1
#1Kritvikrom Durongpisitkul (Mayo Clinic)H-Index: 3
Last. David J. Driscoll (Loyola University Medical Center)H-Index: 71
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Background—The objectives of our study were to determine the frequency of supraventricular tachyarrhythmias (SVTAs) among modifications of the Fontan operation and identify risk factors for developing SVTA. Methods and Results—The population consisted of all patients who had any modification of the Fontan operation at the Mayo Clinic between 1985 and 1993. Clinically significant SVTAs were those requiring initiation or change of antiarrhythmic treatment, and they were divided into early SVTAs (<...
146 CitationsSource
#1Douglas D. MairH-Index: 53
#2Francisco J. PugaH-Index: 19
Last. Gordon K. DanielsonH-Index: 104
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Background. During the 1970s (1973-1979), 41 patients with tricuspid atresia and 25 patients with double-inlet left ventricle had a Fontan procedure performed at the Mayo Clinic. In the tricuspid atresia group, there were seven hospital deaths and six late deaths, leaving 28 survivors 11-16 years after surgery. In the double-inlet left ventricle group, there were six hospital deaths and six late deaths, leaving 13 survivors 11-13 years after surgery. Methods and Results. The present status of 38...
42 Citations
#1Gordon K. DanielsonH-Index: 10
#1Gordon K. DanielsonH-Index: 104
Last. Hartzell V SchaffH-Index: 1
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Between October 1973 and mid-January 1987, 500 patients underwent a modified Fontan operation at the Mayo Clinic. This included 163 patients with tricuspid atresia, 154 patients with double inlet ventricle, and 183 patients with other complex single ventricle malformations. There have been 80 hospital deaths (16%). In the last 5 years there have been 39 deaths (11.7%). Lowest mortality was seen in patients with tricuspid atresia (11% overall, 5.8% last 5 years) and highest mortality was seen in ...
5 Citations
#1Douglas L. WoodH-Index: 23
#2Stephen C. HammillH-Index: 71
Last. Michael J. OsbornH-Index: 24
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Cryosurgical modification of atrioventricular (AV) node conduction was performed in five patients with AV node reentrant tachycardia that used dual AV nodal pathways and was refractory to drug therapy. The procedure alleviated the tachycardia in all patients without the development of complete heart block and without any associated surgical morbidity or mortality. These results suggest that cryosurgical modification of AV node conduction is a promising and potentially curative method of treating...
20 CitationsSource
#1Richard A. Humes (Mayo Clinic)H-Index: 16
#2Co-Burn J. Porter (Mayo Clinic)H-Index: 13
Last. Gordon K. DanielsonH-Index: 104
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: We reviewed the records of 135 patients with tricuspid atresia and 120 patients with double-inlet ventricle who underwent modified Fontan procedure from 1973 to June 1985. This represents 67% of the total number of patients undergoing the procedure during this period. There were 32 (12%) in-hospital deaths (14 tricuspid atresia, 18 double-inlet ventricle) and 23 late deaths (13 tricuspid atresia, 10 double-inlet ventricle). For patients surviving to hospital dismissal, the 5 year survival was ...
52 Citations
: Hemodynamic progression of valvular aortic stenosis was studied in 54 patients who had serial cardiac catheterizations. There were 47 men and 7 women with a mean age of 61.2 years. The time interval between studies was 4.4 years (range, 0.4-12.2). Associated coronary artery disease was present in 37 patients (69%). The initial mean aortic valve area (Hakki's formula) was 1.26 cm2 (range, 0.66-2.85), and the aortic valve area at last follow-up was 0.77 cm2 (range, 0.29-1.95), with mean reductio...
15 Citations
#1T. P. DowningH-Index: 2
#2Gordon K. DanielsonH-Index: 10
Last. David J. DriscollH-Index: 71
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Six to thirty percent of right ventricular-to-pulmonary arterial (RV-PA) valved conduits in children fail within 5 years. Experience with correction of tetralogy of Fallot has shown that a competent pulmonary valve is not essential for excellent late results in most patients. Between March 1980 and November 1984, 26 patients who were 12.5 ± 3.3 years old underwent conduit replacement 6.7 ± 2.4 years after definitive repair of congenital heart defects in which a xenograft RV-PA valved conduit had...
19 Citations
#1Bernard J. Gersh (Mayo Clinic)H-Index: 163
#2H. V. SchaffH-Index: 24
Last. Dwight C. McGoonH-Index: 27
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Between 1961 and 1984, 91 patients underwent simultaneous triple valve replacement at the Mayo Clinic. Of the 273 prosthetic valves used, 77% were Starr-Edwards. Perioperative (30 day) mortality was 24% to 27% between 1962 and 1974 and 7% between 1975 and 1983 (p = .17). In patients with NYHA class IV symptoms, perioperative mortality was 44%, and in those with milder symptoms, it was 8% (p less than .0001). The median follow-up was 7.5 years (range, 6 weeks to 20 years). Cumulative survival, wh...
53 CitationsSource
#1Hartzell V. SchaffH-Index: 131
#2Bernard J. Gersh (Mayo Clinic)H-Index: 163
Last. Robert L. FryeH-Index: 37
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56 Citations