Parachute deformity of the tricuspid valve.

Abstract

Parachute deformity of the tricuspid valve Sir,-We have read with interest the report' in which parachute deformity of the tricuspid valve is considered to be the first reported case. In 1972 we published a report of two cases of cor triatriatum.2 One of them proved at necropsy to have a tricuspid valve whose anterior and posterior leaflets were fused. The chordae tendineae of the resulting valve (septal and antero-posterior) were inserted into a single smooth papillary muscle that originated in the apex of the ventricle. The tricuspid valve thus acquired the typical aspect of a parachute valve. We think that anomalies of the tricuspid valve are more frequent than published reports indicate. This is probably because the clinical findings and pathological anatomical features are masked by the severe anatomical lesions with which they are usually associated.'

Parachute tricuspid valve: a systematic review

“…There were 9 (64.3%) adult and 5 (35.7%) pediatric patients ( χ 2 = 2.3, P = 0.257). Patient age was not described for one case [ 12 ]. For the remaining 13 cases, ages ranged from neonate to 52 years old with a median age of 23 years.…”

“… Surgical closure of ASD Recovered 1997 Godart et al [ 9 ] Neonate (she grew up to 2 years) F Single anterior papillary Echocardiography C-TGA, VSDs, small RV (TV annulus 9 mm), hypoplastic aortic arch, coarctation, PDA, s/p coarctation repair + arch plasty + banding, s/p debanding, PAH TV obstruction (annular ring), TS ?/?/18 Annular ring resection + TVR Died of postoperative septic shock 2016 Gupta et al [ 10 ] 0.625 M TTE ASD, VSD (perimembrane) TV stenosis 14/7/? VSD closure + chord transition (to support the free edge of the neoseptal leaflet) + ASD closure 4 Complicated: Escherichia coli pneumonia, recovered 2013 Kurtul et al [ 11 ] 33 M TTE Parachute MV, VSD (perimembrane), PAH (44 mmHg), anomalous origin of the circumflex artery from the right sinus of Valsalva RV, LA Normal function Transcatheter closure of VSD Recovered 1980 Maitre Azcarate [ 12 ] Single from apex Autopsy Cor triatriatum Anterior and posterior leaflets were fused ...…”

“…In one report, patient’s symptom was not mentioned [ 12 ]. In the remaining 13 patients, 3 (23.1%) were asymptomatic and 10 (76.9%) were symptomatic ( χ 2 = 7.5, P = 0.017).…”

“…The diagnostic methods of PTV were described in 12 patients: it was diagnosed by transthoracic echocardiography ( n = 5, 41.7%) [ 9 – 11 , 14 , 16 ], by both transthoracic and three-dimensional transesophageal echocardiography ( n = 2, 16.7%) [ 5 ], by transthoracic and transesophageal echocardiography, three-dimensional transthoracic and transesophageal echocardiography and computed tomographic angiography ( n = 2, 16.7%) [ 7 , 8 ], by transthoracic echocardiography and multislice cardiac computed tomography ( n = 1, 8.3%) [ 7 ], and by autopsy ( n = 2, 16.7%) [ 4 , 12 ].…”

Parachute tricuspid valve in an asymptomatic adult

“…1 The initial three cases were described at necropsy. [1][2][3] The first clinical description of the anomaly without right-sided obstructive lesions was made in 2006. 4 …”