Michael R. Nihill
Baylor College of Medicine
Internal medicineRadiologyBalloonSurgeryCardiologyHemodynamicsGreat arteriesArteryCardiac catheterizationStentTetralogy of FallotCardiac surgeryVentricleStenosisHeart diseaseAngiographyPulmonary hypertensionPulmonary arteryDuctus arteriosusBalloon dilationAnesthesiaMedicine
Publications 115
#1Michael R. Nihill (BCM: Baylor College of Medicine)H-Index: 31
Objectives. To develop a simple method to assess right ventricular function by angiography. Background. Conventional methods of evaluating right ventricular function are inaccurate, cumbersome, and expensive. Methods. We analyzed biplane right ventricular angiograms taken in the posterior–anterior and lateral projections using software to measure right ventricular volumes and regional wall motion in 78 patients with normal hearts (n = 29), atrial septal defects (ASD n = 13), pulmonary valve sten...
#1Gary E. Stapleton (BCM: Baylor College of Medicine)H-Index: 8
#2Rabih Hamzeh (UCSD: University of California, San Diego)H-Index: 7
Last. Frank F. Ing (UCSD: University of California, San Diego)H-Index: 25
view all 9 authors...
Background: Balloon angioplasty of bifurcating pulmonary artery (PA) stenoses is often inadequate, and stent treatment often requires simultaneous implantation of two stents. This study evaluates initial results and long-term follow up of transcatheter stent placement in bifurcating PAs. Methods: This is a retrospective review of patients (pts) who had bifurcating PA stents placed in main and lobar branches from 1993 to 2007. Results: Forty-nine pts had bifurcating PA stents placed at a median a...
25 CitationsSource
#1Diqi Zhu (BCM: Baylor College of Medicine)H-Index: 2
#2Roosevelt BryantH-Index: 17
Last. Michael R. NihillH-Index: 31
view all 4 authors...
Isolated cleft of the mitral valve is an uncommon (but not rare) congenital malformation of the mitral valve that can cause all degrees of mitral regurgitation but can be managed medically or surgically.
18 Citations
#1Diqi ZhuH-Index: 2
#2Roosevelt BryantH-Index: 17
Last. Michael R. NihillH-Index: 31
view all 4 authors...
1 Citations
#1Mark A. Law (BCM: Baylor College of Medicine)H-Index: 10
#2Ronald G. Grifka (Boston Children's Hospital)H-Index: 27
Last. Michael R. Nihill (BCM: Baylor College of Medicine)H-Index: 31
view all 4 authors...
Background Atrial septostomy is a palliative treatment for patients with pulmonary hypertension (PHTN) refractory to vasodilator therapy. Limited data exist in the pediatric population and in patients with repaired congenital heart defects. Methods We performed a retrospective analysis of hemodynamic and symptomatic changes in patients with PHTN who underwent an atrial septostomy at our institution. Results Forty-six atrial septostomies were performed on 43 patients. Patient ages ranged from 0.3...
99 CitationsSource
#2Mark A. LawH-Index: 10
Last. Michael R. NihillH-Index: 31
view all 7 authors...
BACKGROUND: Balloon angioplasty (BA) of native coarctation (CoA) is an accepted therapy, however, long-term results and predictors of success are limited. OBJECTIVES: To examine the long-term outco...
#1Brian K. Eble (University of Arkansas for Medical Sciences)H-Index: 8
#2Charles D. Fraser (BCM: Baylor College of Medicine)H-Index: 66
Last. Anthony C. Chang (BCM: Baylor College of Medicine)H-Index: 29
view all 5 authors...
We describe the case of a 3-week-old infant who was diagnosed with pulmonary atresia, a ventricular septal defect, and discontinuous pulmonary arteries. The pulmonary artery anatomy was delineated by angiography: the right pulmonary artery arose from the proximal right coronary artery, and the left pulmonary artery arose from a left ductus arteriosus. This case illustrates the importance of careful delineation of the anatomy in complex pulmonary atresia before surgical intervention.
2 Citations
Persistent 5th aortic arch is a rare anomaly, first described in 1969 as a double- lumen aortic arch.1 This anomaly usually presents in association with various intracardiac defects. We report the cases of 3 patients with persistent 5th aortic arch. Although all 3 of these patients were found to have similar vascular structures that were best explained by the persistence of the 5th aortic arch into postnatal life, the clinical presentations were quite different. The 2nd case was unique in that t...
21 Citations
#1H G El SaidH-Index: 3
#2Colin J. McMahon (BCM: Baylor College of Medicine)H-Index: 21
Last. Julie A. VincentH-Index: 27
view all 7 authors...
We sought to evaluate the effects of atrial septal and patent foramen ovale (PFO) morphology on the efficacy of transcatheter closure. We performed a retrospective analysis of all patients who underwent PFO device closure from January 1997 to January 2002. Forty-seven patients underwent percutaneous closure of a PFO with a median age of 45 years (range, 8–75) and weight of 76 kg (range 28–115). The septal morphology was flat in 33 and aneurysmal in 14 patients. The PFO morphology was a simple fl...
16 CitationsSource