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1 ntified (mean, 2.3+/-0.9 per patient; 72% in left atrium).
2 requires simultaneous global mapping of the left atrium.
3 electrical and anatomical remodeling of the left atrium.
4 positive curvature being concave toward the left atrium.
5 inhibits the SAN-specific genetic program in left atrium.
6 ing 15 located in right atrium and 10 in the left atrium.
7 m to the interatrial area and finally to the left atrium.
8 s the normal size and phasic function of the left atrium.
9 A 24-F guide is positioned in the left atrium.
10 radiofrequency ablation along the posterior left atrium.
11 mm) at the inferior levels of the posterior left atrium.
12 ery catheter with a clip was placed into the left atrium.
13 n the pulmonary veins, crista terminalis, or left atrium.
14 created in the mitral isthmus and posterior left atrium.
15 e catheter was placed transseptally into the left atrium.
16 cluders while adenosine was infused into the left atrium.
17 perior displacement of the leaflets into the left atrium.
18 y and an increase in PAI-1 expression in the left atrium.
19 a cycle length shorter than in the adjacent left atrium.
20 tentials when stimulation was shifted to the left atrium.
21 n was higher in the right atrium than in the left atrium.
22 significantly higher nerve density than the left atrium.
23 ilms of the chest can be diagnostic of giant left atrium.
24 ERNA, likely because of the exclusion of the left atrium.
25 Two IARTs originated in the left atrium.
26 a transducer and was then inserted into the left atrium.
27 f the reservoir and conduit functions of the left atrium.
28 m, but increased the conduit function of the left atrium.
29 e pulmonary artery and the pulmonary vein or left atrium.
30 distal coronary sinus (CS) or the posterior left atrium.
31 n the right ventricle, pulmonary artery, and left atrium.
32 closure of a low resistance runoff into the left atrium.
33 4 pulmonary veins near the junction with the left atrium.
34 ection of lithium chloride into the right or left atrium.
35 e of an atheromatous plaque and smoke in the left atrium.
36 rse remodeling in the left ventricle and the left atrium.
37 ol servomechanism to withdraw blood from the left atrium.
38 btained from multiple sites of the right and left atrium.
39 the ruptured head does not prolapse into the left atrium.
40 n the right ventricle, pulmonary artery, and left atrium.
41 ally passed through the foramen ovale to the left atrium.
42 equently passed through the foramen into the left atrium.
43 tured head was not seen to prolapse into the left atrium.
44 the ruptured papillary muscle head into the left atrium.
45 ycardia activation in the previously ablated left atrium.
46 cardial conduction patterns of the right and left atrium.
47 hese, 69% reentries and 71% foci were in the left atrium.
48 was performed, which revealed two lesions in left atrium.
49 eins with limited linear ablation within the left atrium.
50 Dense DE was detected at the left posterior left atrium.
51 inage into the hepatic vein, right atrium or left atrium.
52 terminalis/pectinate muscle, pulmonary veins/left atrium.
54 ter effective refractory period (ERP) in the left atrium (251 +/- 25 ms vs. 233 +/- 32 ms, p = 0.04),
55 om 2 centers (age 63 +/- 10 years; 33 women; left atrium 38 +/- 7 mm; left ventricular ejection fract
56 nd the compliance of the pulmonary veins and left atrium; 4) normal respiration and changes in heart
57 ght ventricle (127+/-28 vs 83+/-14 mL/m(2)), left atrium (65+/-16 vs 41+/-9 mL/m(2)), and right atriu
59 re common in the left atrium (n = 206 cells; left atrium: 76 with TATS, 30 without TATS; right atrium
61 Stage 3 pacing stimuli enabled consistent RA-left atrium activation until sinus rhythm was restored.
64 lmonary veins do not connect normally to the left atrium, allowing mixing of pulmonary and systemic b
66 e: 24+/-5%, 38+/-6% [P<0.001, <0.001] in the left atrium and 19+/-9%, 18+/-3% [P<0.001, <0.001] in th
67 was 17.5 +/- 3.9 pmol.mg-1 of protein in the left atrium and 29.2 +/- 6.1 pmol.mg-1 of protein in the
69 PVs, with additional lines in the posterior left atrium and along the mitral isthmus, was performed
70 erents to 2 microg of ET-1 injected into the left atrium and attenuated the ischaemia-related increas
71 ents to 5 microg of U46619 injected into the left atrium and attenuated the ischaemia-related increas
72 dykinin in the electrically paced guinea pig left atrium and by capsaicin in the spontaneously beatin
73 to the cardio-phrenic space, compressing the left atrium and causing medium lobe atelectasis; bilater
74 t electrogram-based catheter ablation in the left atrium and coronary sinus after pulmonary vein isol
76 In atrial fibrillation patients with dilated left atrium and hypertension or failed prior atrial fibr
77 easured in multiple sites in the body of the left atrium and in the appendage by transesophageal puls
79 h additional ablation lines in the posterior left atrium and mitral isthmus, with an 8-mm-tip cathete
81 e cultures routinely obtained from the donor left atrium and postpreservation fluid during heart tran
82 ressure and volume, and shortened ERP in the left atrium and PV are potential factors facilitating an
84 hallenging due to the complex anatomy of the left atrium and PVs, uncertain catheter positioning with
88 functional and structural parameters of the left atrium and the left atrial appendage which have bee
91 even though adjacent structures, such as the left atrium and the right ventricle, alter edge paramete
92 Remarkably, many of the Pnmt(+) cells in the left atrium and ventricle appeared to be working cardiom
93 terial input functions were derived from the left atrium and, in the case of (62)Cu-ETS, corrected fo
94 (rho=0.96 for right atrium and rho=0.92 for left atrium) and the DF gradient between them (rho=0.93)
95 or the right ventricle, 1.8+/-1.0 mm for the left atrium, and 2.3+/-1.1 mm for the left ventricle.
96 mages were manually segmented to isolate the left atrium, and custom software was implemented to quan
98 interatrial septum, pulmonary veins, roof of left atrium, and left posteroseptal mitral annulus and c
100 ent catheterization of the pulmonary artery, left atrium, and right atrium, and a flow probe was posi
102 res require careful navigation of the aorta, left atrium, and right heart, including detailed underst
104 ial and antral areas, various regions of the left atrium, and the coronary sinus until AF terminated
105 the lung, an 18F sheath was delivered to the left atrium, and the left atrial port was closed using a
106 cantly the most efficacious, followed by the left atrium-aorta system and the left ventricle-aorta sy
108 tracorporeal membrane oxygenation (n=4); (2) left atrium-aorta, TandemHeart system (n=4); (3) left ve
111 the left atrial appendage compared with the left atrium as a whole, which may predispose the appenda
113 C) flips, with the belly being convex to the left atrium at midsystole and concave at maximal valve o
114 SNP), or adenosine through a catheter in the left atrium before and 30 minutes after infusion of cyan
116 ff titin isoform, and muscle from the bovine left atrium (BLA), which expresses more compliant titin
117 nd numerous ablation lesions in the low-flow left atrium, but cerebral embolic risk in ventricular ab
118 ooster pump in the body and appendage of the left atrium, but increased the conduit function of the l
121 ly, we perturb the routing of the gut to the left atrium by laser ablation and pharmacology to show t
123 (CNR, 8.9 vs 7.5; image quality, 438 vs 91), left atrium (CNR, 8.0 vs 5.3; image quality, 1006 vs 29)
124 ess was lower for tachycardias involving the left atrium compared with right atrial tachycardias.
126 within the left ventricle as well as in the left atrium confirmed the presence of cavity obliteratio
127 In seven patients (11%), no coronary sinus-left atrium connection was seen; however, all showed a c
128 l fibrillation group showed a coronary sinus-left atrium connection, which was single in five patient
131 complex myocyte arrangement in the posterior left atrium contributes to activation time dispersion ad
132 nt or inducible, complex electrograms in the left atrium, coronary sinus, and superior vena cava were
135 inside the right ventricle (-) and atop the left atrium (+) delivered shocks at 3 strengths (0.75, 1
137 ion, (2) a reduction in cardiac fibrosis and left atrium diameter (marker of end-diastolic pressure),
138 66, 59% women; mean age, 63+/-10 years, mean left atrium diameter, 45+/-6 mm) with a history of parox
139 g-standing persistent AF (age, 68+/-7 years; left atrium diameter, 46+/-3 mm; and AF duration, 25+/-1
140 ft ventricular dimension, deceleration time, left atrium dimension, E/e', and pro B-type natriuretic
142 ion] vs 19.0 +/- 7.8, P = .002) and lower LA left atrium ejection fraction (45.9 +/- 10.7 vs 51.3 +/-
143 +/-4.8 versus 28.6+/-4.3 cm(2); P=0.02), and left atrium (end-diastolic volume, 65+/-19 versus 72+/-1
144 left ventricular dysfunction (LVEF<50%) and left atrium enlargement were independently associated wi
145 ew York Heart Association III to IV classes, left atrium enlargement, and improvement/normality of LV
146 nts (88.9%), whereas 1 patient with multiple left atrium foci was treated with the surgical maze oper
147 ecessitates careful distinction of far-field left atrium from the local coronary sinus electrograms b
148 voir phase has been proposed as a measure of left atrium function in a range of cardiac conditions, w
149 morbidity were slight mitral regurgitation, left atrium > or =40 mm, flail leaflet, atrial fibrillat
150 e MB-LATER score (Male, Bundle brunch block, Left atrium >/=47 mm, Type of AF [paroxysmal, persistent
152 r ablation of ganglionated plexi (GP) in the left atrium has been proposed in different subgroup of p
154 receptor (TGF-beta-RII-DN) in the posterior left atrium in a canine heart failure model will suffici
155 l of the right atrium and at the roof of the left atrium in Bachmann's bundle to allow bipolar pacing
161 ough there was a decrease in fluoroscopy and left atrium instrumentation time with the use of OIC at
163 and are consistent with a model in which the left atrium is activated predominantly over Bachmann's b
165 e mitral annulus-aorta (MA-Ao) junction, the left atrium is continuous through the subaortic curtain
167 ereas the nerve-rich fat in the HF posterior left atrium is positively correlated with AF EGM entropy
168 atrial adipose tissue mass posterior to the left atrium is related to AF independent of demographica
169 Although Pitx2 is expressed in postnatal left atrium, it is unknown whether Pitx2 has distinct po
172 were recorded biatrially at baseline, in the left atrium (LA) after PVI and linear lesions (roof and
173 of congenital P-MAIVF communicating with the left atrium (LA) and an aberrant right subclavian artery
175 with endocardial dysfunction, limited to the left atrium (LA) and LAA and manifest as reduced nitric
177 imaging modalities are able to visualize the left atrium (LA) and, therefore, allow for quantificatio
179 )) and BK (1 microg) in combination into the left atrium (LA) caused an additive response in 16 affer
180 cle length (CL) gradient between PVs and the left atrium (LA) in an attempt to identify the subset of
181 aused by radiofrequency (RF) ablation of the left atrium (LA) in patients with atrial fibrillation ca
182 ml of PRP+collagen or PRP+thrombin into the left atrium (LA) increased activity of 16 cardiac affere
184 rial fibrillation (AF) by fast rotors in the left atrium (LA) or at the pulmonary veins (PVs) is not
186 othelin 1 (ET-1, 1, 2 and 4 microg) into the left atrium (LA) stimulated seven ischaemically sensitiv
187 zed that waves emanating from sources in the left atrium (LA) undergo fragmentation, resulting in lef
189 e ablation, extensive voltage mapping of the left atrium (LA) was performed using a multipolar Lasso
191 d (HCN2) pacemaker current isoform in canine left atrium (LA) would constitute a novel biological pac
192 The patterns of activation of the human left atrium (LA), how they relate to atrial myocardial a
193 activation between the right atrium (RA) and left atrium (LA), particularly along the right and left
194 he TxA(2) mimetic, U46619, injected into the left atrium (LA), stimulated seven ischaemically sensiti
195 e the risk of thromboembolic stroke from the left atrium (LA), the exact mechanisms remain poorly und
196 cardium likely affects its coupling with the left atrium (LA), this issue has not been investigated i
197 F) may result from stationary reentry in the left atrium (LA), with fibrillatory conduction toward th
205 led mononuclear leukocytes injected into the left atrium localized preferentially in previously ische
208 raction between wave fronts in the right and left atrium may be important for maintenance of atrial f
210 on velocity and image intensity ratio in the left atrium (mean +/- SD) were 0.98 +/- 0.46 and 0.95 +/
213 +/- 2.0 microm) and were more common in the left atrium (n = 206 cells; left atrium: 76 with TATS, 3
216 in the right atrium and 53 +/- 23 ms in the left atrium) observed during AF were reactivated by a wa
217 bore vascular access, navigation within the left atrium, occlusion, snaring, and 3-dimensional relat
218 pse (MVP), an abnormal displacement into the left atrium of a thickened and redundant mitral valve du
219 GAP43-positive and TH-positive nerves in the left atrium of dogs with AF was 119+/-61 and 91+/-40 per
221 p22phox were significantly increased in the left atrium of goats after 2 weeks of AF and in patients
222 t injection+electroporation in the posterior left atrium of plasmid expressing a dominant-negative TG
223 Conduction velocity did not change in the left atrium of the HF group and increased minimally in t
224 up B, n = 50) or to ablation of CFAEs in the left atrium or coronary sinus for up to 2 additional hou
225 We found no evidence that positive donor left atrium or postpreservation fluid cultures increase
229 large structures (e.g., the left ventricle, left atrium, or sections of the aorta) where PVEs were n
230 regions, specifically in the inferoposterior left atrium (p < 0.01), superior right atrium (p < 0.05)
234 ng atrial fibrillation (AF) in the posterior left atrium (PLA) and elsewhere are being used as target
236 ll can change the electric conduction of the left atrium, potentially leading to atrial fibrillation
240 were placed on the epicardial surface of the left atrium-PV junction, as well as on the phrenic nerve
245 ease in regional blood flow to the right and left atrium, respectively, and acute hemorrhage, medial
247 X in guinea-pig heart in tissue samples from left atrium, right atrium, septum, left ventricle and ri
248 dial infarction and implantation of an LV-to-left atrium shunt to create standardized moderate volume
249 sessment of the pulmonary vein ostia and the left atrium size in computed tomography presents a good
251 10.7 vs 51.3 +/- 8.7, P < .001), maximal LA left atrium strain ( Smax maximum LA strain ) (25.4 +/-
252 7 vs 30.6 +/- 10.6, P < .001) and maximum LA left atrium strain rate ( SRmax maximum LA strain rate )
253 +/- 0.42 vs -1.01 +/- 0.48, P < .001) and LA left atrium strain rate at atrial contraction peak ( SRA
254 9 +/- 0.51, P < .001), and lower absolute LA left atrium strain rate at early diastolic peak ( SRE LA
256 ge in DF/FI/Shannon entropy in the posterior left atrium than left atrial appendage, with the decreas
257 pronounced reverse remodeling effects on the left atrium that independently correlate with improved c
259 causing them to stretch and balloon into the left atrium, the intrinsic tissue thickness is much less
261 For ectopic foci in the pulmonary veins and left atrium, the site of conduction block and reentry gr
262 septal morphology were identified: 1) large left atrium, thick prominent septum secondary with thin
263 atrial septum (type B, n = 4), and 3) giant left atrium, thin atrial septum with severe mitral regur
264 8.3+/-7 versus 19.4+/-4.3 minutes; P<0.001), left atrium time (104+/-25 versus 92+/-23 minutes; P<0.0
267 n was produced by inflating a balloon in the left atrium to increase left atrial pressure by 5 mmHg.
268 he left ventricle to aortic pressure, in the left atrium to left atrial pressure, and in all heart ch
270 erwent placement of 2 sonomicrometers on the left atrium, transesophageal echocardiography, and invas
271 restitution characteristics of the posterior left atrium, translating into a decrease in AF and incre
273 Persistent AF patients had larger indexed left atrium volume (55 +/- 18 ml vs. 41 +/- 12 ml and 47
274 , 1.20; 95% CI, 1.09-1.33; P<0.001), maximum left atrium volume before mitral valve opening (HR, 1.02
275 r longitudinal systolic function and maximum left atrium volume before mitral valve opening, and as s
277 ar group had significantly higher minimum LA left atrium volume than the control group (mean, 22.0 +/
279 ion and measured global longitudinal strain, left atrium volumes, and PALS within 48 hours of admissi
281 ority were ablated for the first time (71%); left atrium was 43+/-6 mm; and left ventricular function
284 the 3311 patients with echocardiograms, the left atrium was enlarged in 64.7 percent and left ventri
291 emperature control, no char was noted in the left atrium, whereas 8% of the right atrium burns had ch
292 the ruptured head may not prolapse into the left atrium, which makes diagnosis by transthoracic or t
293 vena cava, right atrium, foramen ovale, and left atrium with a guidewire and 1.8F to 2.6F tapered ca
294 36 hemodynamic stages in vivo, replacing the left atrium with a rigid chamber and column for direct v
295 olation of the pulmonary veins and posterior left atrium with a single ring of radiofrequency lesions
296 T study, favorable reverse remodeling of the left atrium with CRT-D therapy was associated with a sig
297 the introducer sheath was tracked toward the left atrium with the use of novel miniature MR guide wir
298 primary adherent (type A, n = 12); 2) small left atrium with thick, muscular atrial septum (type B,
299 ction of TGF-beta signaling in the posterior left atrium-with resulting decrease in replacement fibro
300 to-right interatrial shunt to decompress the left atrium (without compromising left ventricular filli
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