Severe oesophageal constriction due to an aberrant right subclavian artery with Kommerell’s diverticulum in a cat

Suzuki, Ryôhei; Mochizuki, Yu; Yoshimatsu, Hiroki; Niina, Ayaka; Teshima, Teruki; Matsumoto, Hirotaka; Koyama, Hidekazu

doi:10.1177/2055116918764589

Cited by 4 publications

(8 citation statements)

References 14 publications

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“…In this study, the HNCM and HOCM had decreased LV-SL in whole layers and LV-SC in the epicardium, which is consistent with the results of previous studies (20). Previous 2D-STE studies in cats with HCM have reported lower longitudinal strain in asymptomatic HCM cats than in healthy cats (13,19).…”

Section: Discussionsupporting

confidence: 92%

“…However, LV-SC Endo/Epi was decreased in the HOCM and HNCM compared to the healthy cats, although the difference was not significant. LV-SC Endo/Epi in asymptomatic cats-affected HCM was increased compared to healthy cats in a previous study, although there was no significant difference in LV-SL Endo/Epi (20). Increased LV-SC Endo/Epi is considered to be circumferential endocardial compensation for depressed epicardial contraction (20,23,24).…”

Section: Discussionmentioning

confidence: 74%

“…An overview of the 2D-STE analysis for cats has been previously described (9,14,15,19,20). 2D-STE analysis is performed using highquality images obtained from conventional echocardiography.…”

Section: Two-dimensional Speckle-tracking Echocardiographymentioning

confidence: 99%

“…The endocardial-to-epicardial strain ratio (Endo/Epi), which is believed to reflect compensatory mechanisms of cardiac function in patients with HCM, was also calculated (23,24). Previous studies have shown observer variability in 2D-STE analysis in our laboratory (14,(19)(20)(21).…”

Section: Two-dimensional Speckle-tracking Echocardiographymentioning

confidence: 99%

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Comparative study of myocardial function in cases of feline hypertrophic cardiomyopathy with and without dynamic left-ventricular outflow-tract obstruction

et al. 2023

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In recent years, hypertrophic cardiomyopathy (HCM) in cats has become much more common in clinical practice due to improvements in diagnostic techniques and equipment performance. One phenotype is obstructive HCM with left ventricular (LV) outflow tract obstruction (DLVOTO). It has been reported that the presence or absence of DLVOTO does not affect long-term prognosis in cats with HCM. In this study, we evaluated and compared myocardial function in HCM-affected cats with and without DLVOTO using the two-dimensional speckle-tracking echocardiography. LV longitudinal strain of the endocardial, epicardial, and whole layer and LV circumferential strain of the epicardium were significantly decreased in all HCM-affected cats compared to healthy cats. However, these values were not significantly different between those with and without DLVOTO. In contrast, the endocardial and whole layers of LV circumferential strain were only significantly decreased in HCM-affected cats with DLVOTO compared to healthy cats. This could be attributed to the fact that the LV pressure load associated with DLVOTO affected the endocardial myocardium more in the LV endocardial layer, and that lower values of LV endocardial strain lowered the values of LV strain in the whole layer. In conclusion, our results suggest that LV myocardial function may have been more compromised in the HCM-affected cats with DLVOTO.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 74%

Section: Two-dimensional Speckle-tracking Echocardiographymentioning

confidence: 99%

Section: Two-dimensional Speckle-tracking Echocardiographymentioning

confidence: 99%

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Comparative study of myocardial function in cases of feline hypertrophic cardiomyopathy with and without dynamic left-ventricular outflow-tract obstruction

et al. 2023

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“…Physical obstruction of the esophagus by aberrant vasculature is occasionally encountered. [7][8][9][10] Lesions of the central nervous system have not been reported to cause megaesophagus in cats. However, peripheral neuropathies are common causes of megaesophagus, with feline dysautonomia being reported frequently.…”

Section: Introductionmentioning

confidence: 99%

Resolution of megaesophagus after correction of a paraesophageal hernia

Rolph,

Ryan,

Yool

et al. 2023

Journal of Feline Medicine and Surgery Open Reports

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Case summary A 6-year-old female Siamese cat presented with an 8-week history of vomiting and progressive hyporexia. On presentation, the cat was found to have a hypochloremic alkalosis. Imaging demonstrated hiatal hernia and megaesophagus. Exploratory laparotomy demonstrated a paraesophageal hiatal hernia. The hernia was reduced, phrenoplasty and esophagopexy were performed, and a gastrotomy tube was placed. Treatment of the hernia led to resolution of the megaesophagus. Relevance and novel information Megaesophagus can occur secondarily to paraesophageal hernia in the cat. In this case, correction of the paraesophageal hernia led to complete resolution of the esophageal dilation and all associated clinical signs.

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Surgical Correction for Left Aortic Arch with Aberrant Right Subclavian Artery in a Cat

NOGUCHI,

IWANAGA,

SOGAWA

et al. 2023

Japanese Journal of Veterinary Anesthesia & Surgery

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A three-month-old intact female cat was presented with a history of regurgitation. Contrast-enhanced computed tomography revealed a complete vascular ring due to aberrant origin of the right subclavian artery and conjunction of the right subclavian and common carotid arteries, which had caused esophageal stricture with severe dilatation, cranial to the heart base. At eight months old, the cat underwent surgical transection of the aberrant right subclavian artery via a right-sided intercostal thoracotomy. The cat recovered uneventfully and was discharged six days after surgery. Although regurgitation occurred due to trichobezoars requiring removal from the dilated esophagus under endoscopy two months post-surgery, the cat has remained asymptomatic through 12 months post-surgery.

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Severe oesophageal constriction due to an aberrant right subclavian artery with Kommerell’s diverticulum in a cat

Cited by 4 publications

References 14 publications

Comparative study of myocardial function in cases of feline hypertrophic cardiomyopathy with and without dynamic left-ventricular outflow-tract obstruction

Comparative study of myocardial function in cases of feline hypertrophic cardiomyopathy with and without dynamic left-ventricular outflow-tract obstruction

Resolution of megaesophagus after correction of a paraesophageal hernia

Surgical Correction for Left Aortic Arch with Aberrant Right Subclavian Artery in a Cat

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