Anatomical Study of Chiari Network and the Remnant of Left Venous Valve in the Interior of Right Atrium

Jansirani, D. Devi; Deep, S. Shiva; Anandaraja, S

doi:10.1155/2015/247680

Cited by 16 publications

(15 citation statements)

References 18 publications

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“…Early in the human heart development, the left sinus venous valve is fused with the septum primum and becomes part of the interatrial septum [ 18 ]. However, if the left sinus venous valve fuses incompletely with the right aspects of the interatrial septum complex, remnants derived from the left sinus venous valve can present in adults as a thin fenestrated membrane or a trabecular membranous structure overlying the surface of the fossa ovalis [ 9 , 18 ]. Klimek-Piotrowska et al .…”

Section: Discussionmentioning

confidence: 99%

“…Klimek-Piotrowska et al reported four variations of fossa ovalis anatomy in humans, one of which was a net-like formation within the fossa ovalis that occurs in 7.4% of -14-humans [11]. In addition, the presence of remnants of the left sinus venous valve as a membranous or trabecular membranous structure over the fossa ovalis or the interatrial septum has been reported in 7.5% of humans [9].…”

Section: -12-mentioning

confidence: 99%

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Presence of the annular ridge and location of the coronary sinus ostium as morphological features of the right atrium and interatrial septum in healthy common marmosets (<i>Callithrix jacchus</i>)

et al. 2020

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To effectively use a common marmoset (Callithrix jacchus) as an experimental animal species, it is critical to establish a normal characteristics and morphology of the organs of the common marmoset. Although gross morphology of the common marmoset heart is reportedly the same as that of humans, little information is available regarding detailed morphology of the right atrium and the interatrial septum. Heart specimens were collected from three male and 10 female marmosets aged 9 to 65 months to determine the morphological features of the right atrium and the interatrial septum. Ten specimens were evaluated morphologically with a stereoscopic microscope in accordance with preparation and investigation methods designed to facilitate evaluation. Three specimens were histologically evaluated after being stained with hematoxylin-eosin, Elastica van Gieson and periodic acid Schiff. An annular ridge that is not present in the human heart was present in the right atrium and the interatrial septum of the common marmoset hearts. Tissue structure of the annular ridge was similar to atrial myocardial fibers. Furthermore, location of the coronary sinus ostium was different to that in humans. Present findings were used to create a schematic view of the annular ridge in the common marmoset heart. In the common marmoset heart, the annular ridge may function as a valve of the superior vena cava ostium, inferior vena cava ostium, and coronary sinus ostium. Present study provides morphological evidence that common marmosets have a valve-like structure in the right atrium.

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Section: Discussionmentioning

confidence: 99%

Section: -12-mentioning

confidence: 99%

Presence of the annular ridge and location of the coronary sinus ostium as morphological features of the right atrium and interatrial septum in healthy common marmosets (<i>Callithrix jacchus</i>)

et al. 2020

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“…It has been previously reported that this network is rarely associated with thromboemboli or thrombus formation. CAN usually has a specific shape with many fenestrations in its wall; however, it can also present in a cystic or cord-like shape or a diverticulum 7,8…”

Section: Discussionmentioning

confidence: 99%

Right Atrial Blood Cyst with Stones Suspended from the Coronary Sinus

Sabzi

Heydari

Asadmobini

et al. 2019

Sultan Qaboos Univ Med J

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Cardiac blood cysts are rare benign neoplasms, usually involving the cardiac valves and are remnants of the Chiari network. They are usually detected in the first six months of life and rarely occur in children or adults. We report a 76-year-old male patient who was referred to the Imam Ali Hospital affiliated with Kermanshah University of Medical Sciences, Kermanshah, Iran, in 2018 with dyspnoea. Transthoracic echocardiography revealed a small patent foramen ovale (PFO) and a circumferential mobile cystic mass in the right atrium, with the impression of a tumour or thrombus. The patient underwent open-heart surgery with cardiopulmonary bypass to repair to PFO and remove the intra-atrial lesion. During surgical examination of the right atrial cavity, a blood cyst containing small stone-like structures on the coronary sinus valve of the right atrium was found. The post-operative course was uneventful and no recurrence of tumour was detected during six months of follow-up. To the best of our knowledge, this is the first reported case of a right atrial blood cyst with a few nodule-like stones in an adult with PFO in Iran and the second case in an adult with PFO worldwide.Keywords: Cyst; Coronary Sinus; Adult; Operative Surgical Procedure; Case Report; Iran.

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“…However, the incidence of Chiari network in a more recent study involving 80 cadaveric hearts was 3.75%. 12 Another explanation behind the varying prevalence may be the criteria used for defining Chiari network. All structures found in the right atrium in relation to the IVC or coronary sinus is not well visualized, especially in imaging study.…”

Section: Original Articlementioning

confidence: 99%

Prevalence and Clinical Profile of Chiari network in Bangladeshi subjects: Analysis of 1832 subjects by Echocardiography

Islam

Gupta

Majumder³

et al. 2019

Cardiovasc. j.

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Background: The Chiari network is mobile, serpentine, filament-like structures occasionally seen in right atrium near the opening of inferior vena cava and coronary sinus. Sometimes it may cause diagnostic confusion with right atrial pathologies. Methods: This was a cross sectional study conducted from September 2017 to August 2018 in a private consultation center in Dhaka. All patients who underwent transthoracic echocardiography were included. Chiari network was diagnosed and any relevant clinical condition was recorded. Results: Out of 1832 echo studies, Chiari network was found in 90 subjects giving a prevalence of 4.91%. More than half (55.6%) had otherwise normal heart, 20% had ischaemic heart disease, 7.8% had cardiomyopathy, 6.7% congenital heart disease, while 3.3% had valvular heart disease. Conclusion: The Chiari network is often an incidental diagnosis, though it may not be so rare. Clinicians should be aware of it to avoid diagnostic dilemma and to overcome difficulties while performing cardiovascular interventions. Cardiovasc. j. 2019; 11(2): 93-97

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Anatomical Study of Chiari Network and the Remnant of Left Venous Valve in the Interior of Right Atrium

Cited by 16 publications

References 18 publications

Presence of the annular ridge and location of the coronary sinus ostium as morphological features of the right atrium and interatrial septum in healthy common marmosets (<i>Callithrix jacchus</i>)

Presence of the annular ridge and location of the coronary sinus ostium as morphological features of the right atrium and interatrial septum in healthy common marmosets (<i>Callithrix jacchus</i>)

Right Atrial Blood Cyst with Stones Suspended from the Coronary Sinus

Prevalence and Clinical Profile of Chiari network in Bangladeshi subjects: Analysis of 1832 subjects by Echocardiography

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