Reduction of diameter of the left ventricle of dogs by plication of the left ventricular free wall

Periodontal disease is commonly diagnosed in dogs and has been associated with systemic lesions in several organs, however, studies correlating this oral condition with heart disease in the canine species are still scarce in the scientific literature. Thus, the objective of the present study was to evaluate such correlation in adult dogs, through serial echocardiographic exams and, nonetheless, to analyze the influence of dental treatment on cardiac function. For this, 60 dogs were used, distributed in two groups, the control (CG, n = 30: presence of periodontal disease, not submitted to oral treatment) and the treated (GT, n = 30: presence of periodontal disease and submitted to oral treatment). The animals of the CG were paired with those of the GT in terms of race, weight, age and degree of periodontal disease. Baseline echocardiographic examinations (D0) of the CG were performed and after 30 days (D30). In GT, examinations were also performed at D0 and D30, however, they were submitted to periodontal treatment after baseline measurements. The echocardiographic exams were performed at the Veterinary Cardiology Laboratory of the Veterinary Hospital of the University of Franca, to record and analyze the interventricular septum in diastole (SIVd), interventricular septum in systole (SIVs), diameter of the left ventricle in diastole (DVEd), left ventricular diameter in systole (EVDs), left ventricular free wall in diastole (PVEd) left ventricular free wall in systole (PVEs) shortening fraction of left ventricle (FS), final diastolic volume (VDF), final stroke volume (VSF), ejection fraction (EF), maximum pulmonary artery pressure gradient (max. GP AP) and left atrial and aortic artery diameter ratio (EA-AO). The results of the CG were statistically compared with those of the GT by means of simple analysis of variance (ANOVA). The data obtained regarding the SIVs, DVEd and PVEs parameters of the GT dogs at D30 showed a statistically significant decrease (p<0.05) when compared to the D30 of the CG. Thus, given the established methodology and the results found, it is possible to infer that periodontal treatment may benefit some cardiac parameters of adult dogs, improving their quality of life and survival.

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Impella CP for treatment of left ventricular free-wall rupture after myocardial infarction: Report of a case

Journal of Surgical Case Reports ◽

10.1093/jscr/rjaa263 ◽

2020 ◽

Vol 2020 (8) ◽

Author(s):

Natsuya Ishikawa ◽

Aina Hirofuji ◽

Shingo Kunioka ◽

Tomonori Shirasaka ◽

Naohiro Wakabayashi ◽

...

Keyword(s):

Myocardial Infarction ◽

Left Ventricle ◽

Median Sternotomy ◽

Left Ventricular ◽

Ventricular Free Wall ◽

Suture Repair ◽

Free Wall ◽

Left Ventricular Free Wall ◽

Free Wall Rupture

ABSTRACT Unloading of the left ventricle (LV) is essential for the treatment of LV free-wall rupture (LVFWR), and it is well-known that the LV can be optimally unloaded with the Impella system. However, there has been no report on applying the Impella system for the treatment of LVFWR. Here, we report a patient with FWR after massive myocardial infarction who was successfully treated with non-suture repair via median sternotomy and implantation of Impella CP (Abiomed, Danvers, MA).

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Survival after Left Ventricular Free Wall Rupture in an Elderly Woman with Acute Myocardial Infarction Treated Only Medically

Case Reports in Vascular Medicine ◽

10.1155/2012/728602 ◽

2012 ◽

Vol 2012 ◽

pp. 1-6

Author(s):

Víctor Hugo Roa-Castro ◽

Ervin Molina-Bello ◽

Hector Valenzuela-Suárez ◽

Tobías Rotberg-Jagode ◽

Nilda Espinola-Zavaleta

Keyword(s):

Myocardial Infarction ◽

Acute Myocardial Infarction ◽

Left Ventricle ◽

Left Ventricular ◽

Ventricular Free Wall ◽

Free Wall ◽

Left Ventricular Free Wall ◽

Pseudoaneurysm Formation ◽

Free Wall Rupture ◽

First Choice

Pseudoaneurysm of the left ventricle is rare and may occur as a result of transmural myocardial infarction. The course of rupture after acute myocardial infarction varies from a catastrophic event, with an acute tear leading to immediate death (acute rupture), or slow and incomplete tear leading to a late rupture (subacute rupture). Incomplete rupture may occur when the thrombus and haematoma together with the pericardium seal the rupture of the left ventricle and may develop into a pseudoaneurysm. Early diagnosis and treatment is essential in this condition. Two-dimensional color Doppler echocardiography is the first-choice method for most patients with suspected left ventricular pseudoaneurysm (LVP) and suggests left ventricular rupture in 85% to 90% of patients. We report the case of an 87-year-old woman presenting with symptoms and findings of myocardial infarction and left ventricular free wall rupture with a pseudoaneurysm formation diagnosed by echocardiography and confirmed on CT, MRI, and NM. She received only intense medical treatment, because she refused surgery with a favorable outcome. After 24-month followup, she is in NYHA functional class II. The survival of this patient is due to the contained pseudoaneurysm by dense pericardial adhesions, related to her previous coronary bypass surgery.

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Intracellular EDEMA does not adversely affect the ability to cryopreserve intact hearts

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100147235 ◽

1993 ◽

Vol 51 ◽

pp. 278-279

Author(s):

CL Hastings ◽

RD Carlton ◽

FG Lightfoot ◽

AF Tryka

Keyword(s):

Cell Injury ◽

Median Sternotomy ◽

Left Ventricular ◽

Ventricular Free Wall ◽

Hypoxic Cell ◽

Free Wall ◽

Sprague Dawley ◽

Left Ventricular Free Wall ◽

Sprague Dawley Rats

The earliest ultrastructural manifestation of hypoxic cell injury is the presence of intracellular edema. Does this intracellular edema affect the ability to cryopreserve intact myocardium? To answer this guestion, a model for anoxia induced intracellular edema (IE) was designed based on clinical intraoperative myocardial preservation protocol. The aortas of 250 gm male Sprague-Dawley rats were cannulated and a retrograde flush of Plegisol at 8°C was infused over 90 sec. The hearts were excised and placed in a 28°C bath of Lactated Ringers for 1 h. The left ventricular free wall was then sliced and the myocardium was slam frozen. Control rats (C) were anesthetized, the hearts approached by median sternotomy, and the left ventricular free wall frozen in situ immediately after slicing. The slam frozen samples were obtained utilizing the DDK PS1000, which was precooled to -185°C in liguid nitrogen. The tissue was in contact with the metal mirror for a dwell time of 20 sec, and stored in liguid nitrogen until freeze dry processing (Lightfoot, 1990).

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Echocardiographic Findings in Friedreich's Ataxia

Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques ◽

10.1017/s0317167100025543 ◽

1976 ◽

Vol 3 (4) ◽

pp. 329-332 ◽

Cited By ~ 25

Author(s):

H.F. Gattiker ◽

A. Davignon ◽

A. Bozio ◽

J. Batlle-Diaz ◽

G. Geoffroy ◽

...

Keyword(s):

Friedreich’S Ataxia ◽

Left Ventricular ◽

Friedreich's Ataxia ◽

Ventricular Free Wall ◽

Slight Reduction ◽

Free Wall ◽

Left Ventricular Free Wall ◽

Echocardiographic Examination ◽

Septal Hypertrophy ◽

Echocardiographic Findings

SUMMARY:Echocardiographic examination of 21 patients with Friedreich's ataxia (age 7 to 28 years) showed cardiac abnormalities in 90% of the cases. They were characterized by varying degrees of septal hypertrophy in 81%, left ventricular free wall hypertrophy in 61%, and a slight reduction of left ventricular internal dimension in 57% of the cases. Asymmetric septal hypertrophy (ASH) with a septal/left ventricular free wall ratio of over 1.3 was found in 29% of the cases, and systolic anterior motion (SAM) of the mitral valve in three patients. Two other patients showed evidence of a different type of cardiomyopathy with marked symmetric left ventricular hypertrophy and marked left ventricular enlargement.

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