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K Kallee

Publications and source records attributed to K Kallee.

15 recordsLinked to original sources
PubMed2001

Holodiastolic reversal flow in the common carotid: another indicator of the severity of aortic regurgitation.

Aortic regurgitation (AR) causes an increased diastolic reverse flow at various levels of aorta and its branching vessels. A prospective study was designed to evaluate the feasibility and accuracy of duplex sonography of the common carotid artery (CCA) in patients with various degrees of AR quantified by cardiac angiography. Twenty-four patients, with pure angiographic AR, of mean age 63.5 + 2.5-year old were included. Holodiastolic reverse flow (HRF) was recorded in all seven patients with severe angiographic AR (five with grade III and two with grade IV) and in none of the seventeen patients (eight with grade I and nine with grade II) with mild angiographic AR (p < 0.001). Furthermore, HRF was recorded both in the CCA and in the aorta, where it represents another criterion of severe AR, of six patients with severe angiographic AR and was absent in the eleven patients with grade I or II AR (p < 0.001). Demonstration of HRF in the CCA may be a very helpful criterion in distinguishing patients with severe AR.

Adult↗
PubMed2000

Eustachian valve mimicking a right atrial cystic tumor.

We report the case of a 65-year-old patient referred to our hospital for stroke. In the course of the diagnostic procedure, a transesophageal echocardiography was performed and showed at first sight a mass attached to the right aspect of the interatrial septum and mimicking a cystic tumor. But after performing multiple views, it was in fact demonstrated a large Eustachian valve with its extremity attached to the right aspect of the interatrial septum. The increasing use of transesophageal echocardiography to evaluate patients makes it important for echocardiographers to recognize this anatomic entity and its normal variants.

Aged↗
PubMed1998

Right- and left-sided interatrial septal aneurysm mimicking atrial tumor and stroke.

We report the cases of two patients with cerebral embolization and interatrial septal aneurysm. Transesophageal echocardiography required for stroke showed right-sided interatrial septal aneurysm in the first patient and left-sided interatrial septal aneurysm in the second. In the two patients, interatrial septal aneurysm was mimicking atrial cystic tumor or abscess. Significant internal carotid artery stenosis was found in the first patient and aortic arch atheroma with mobile components but no patent foramen ovale in the second patient. In the two patients, interatrial septal aneurysm appears to be only an incidental finding and not the true cause of stroke. Furthermore, we discuss the differential diagnoses of atrial masses.

Aged↗
PubMed1998

Giant interatrial septal aneurysm mimicking a right atrial tumor.

We report the case of a patient with a giant interatrial septum aneurysm who was admitted to our hospital for analysis of palpitations. Transthoracic echocardiography was not contributive and cardiac magnetic resonance imaging demonstrated a small interatrial septal aneurysm. In our study, only transesophageal echocardiography provided the correct diagnosis, showing a giant interatrial septal aneurysm protruding far away into the right atrium and mimicking a right atrial cystic tumor.

Diagnosis, Differential↗
PubMed1995

Silent brain infarct after carotid artery surgery: incidence and prevention.

To determine the prevalence and mechanisms of postoperative silent brain infarct, brain CT was routinely performed before and after carotid endarterectomy during the same period of hospitalization. Between June 1991 and May 1993, 69 patients who underwent 74 carotid endarterectomies (five two-staged bilateral procedures) were enrolled in the study. Ipsilateral brain infarct was observed on the preoperative CT scans in 25 cases. Of these 25 infarcts, three occurred in 20 patients (15%), without symptoms, 13 in 41 patients (32%) with transient ischemic attacks (TIAs), and 9 in 13 patients (70%) with cerebrovascular accident. After surgery, two patients (2.7% of procedures) had monoparesia of an upper limb with no corresponding abnormality seen on CT scans, and two (2.7%) had TIAs, associated with CT evidence of a new lesion in one patient. Five silent brain infarcts (6.8%) were detected, including four in the hemisphere contralateral to the restored carotid artery. These study results indicate there is no correlation between the occurrence of postoperative silent brain infarct and the presence of ulcerated stenosis of the carotid artery documented by Doppler ultrasound examination. Silent infarct was not observed in any of the 24 patients (32%) in whom a shunt had been used during the procedure. After a review of the literature, we propose wider use of intraoperative shunts to prevent postoperative silent brain infarct.

Aged↗