Year : 2015  |  Volume : 18  |  Issue : 2  |  Page : 221--224

Is it really ruptured sinus of valsalva? The crucial role of comprehensive transesophageal echocardiography in clinical decision-making


Pawan Kumar Jain, Jitin Narula, Suruchi Hasija, Usha Kiran 
 Department of Cardiac Anaesthesiology, C. N. Centre, AIIMS, New Delhi, India

Correspondence Address:
Dr. Jitin Narula
Department of Cardiac Anaesthesiology, C. N. Centre, AIIMS Campus, East Ansari Nagar, New Delhi - 110 016
India




How to cite this article:
Jain PK, Narula J, Hasija S, Kiran U. Is it really ruptured sinus of valsalva? The crucial role of comprehensive transesophageal echocardiography in clinical decision-making.Ann Card Anaesth 2015;18:221-224


How to cite this URL:
Jain PK, Narula J, Hasija S, Kiran U. Is it really ruptured sinus of valsalva? The crucial role of comprehensive transesophageal echocardiography in clinical decision-making. Ann Card Anaesth [serial online] 2015 [cited 2021 Aug 4 ];18:221-224
Available from: https://www.annals.in/text.asp?2015/18/2/221/154475


Full Text

 Introduction



Aneurysms of the sinuses of valsalva are rare congenital defects resulting from aortic wall weakness at the junction of annulus fibrosa and the aortic media at any of the 3 cusps. [1] With reference to patients from eastern countries, the most common site of origin is right coronary sinus (65-85%) with nearly all rupturing into right chambers. [1] Thus, an aneurysm of the right sinus of valsalva rupturing into the left ventricle is a very rare condition if at all accurately diagnosed.

There is literature available where ruptured sinus of valsalva aneurysm (RSOVA) could only be diagnosed upon transesophageal echocardiography (TEE) and was misdiagnosed on transthoracic echocardiography (TTE) and cardiac catheterization. [2],[3] However, this report is about a hemodynamically stable patient who was preoperatively identified as suffering from RSOVA, whereas the actual pathology was different and was only discovered on intraoperative TEE and influenced the surgical technique and cardiopulmonary bypass (CPB) conduct, improving the therapeutic outcome.

 Case History



A 49-year-old New York Heart Association grade III male patient presented with orthopnea and grade III dyspnea. His electrocardiogram showed left axis deviation and evidence of left ventricular (LV) hypertrophy. The chest X-ray except for cardiomegaly with LV apex was inconclusive. Upon TTE, patient was diagnosed with RSOVA draining into the left ventricle. Cardiac catheterization and angiography further showed-normal coronaries, right coronary cusp (RCC) aneurysm with rupture into left ventricle causing severe regurgitation [Figure 1], normal left ventricle function, absence of any ventricular septal defect (VSD), no gradient across left ventricle and aorta and Qp/Qs = 1. Patient was scheduled for RSOVA repair with aortic valve repair/replacement.{Figure 1}

Following anesthetic induction, intraoperative multiplane, color Doppler, two-dimensional and three-dimensional (3D) - TEE examination was performed (iE33 TM ; Phillips Medical Systems, Andover, MA, USA). While mid esophageal right ventricular inflow-outflow view revealed bicuspid aortic valve (BAV) with normally co-apting leaflets and created suspicion of perforated leaflet [[Figure 2] and Video 1]; we observed an eccentric jet of aortic regurgitation upon color flow doppler in mid esophageal aortic valve long axis view with normal coronary sinuses which made us suspicious of the preoperative diagnosis of RSOV. Upon close observation in both mid esophageal aortic valve long axis view [[Figure 3] and Video 2] and mid esophageal 5 chamber view [Figure 4] we witnessed a left-to-right shunt flow across VSD restricted by septal tricuspid leaflet. Furthermore, on mid esophageal 5 chamber view, the shunt flow looked like a windsock deformity [Figure 4] which was masquerading as ruptured RCC aneurysm in the opinion of a cardiologist.{Figure 2}{Figure 3}{Figure 4}

[MULTIMEDIA:1]

[MULTIMEDIA:2]

 Observations



The 3D examination of the aortic valve disclosed a perforated posterior coronary cusp [Figure 5] corroborating our finding. We conveyed the information to the surgical team, who then instead of dual-stage venous cannulation switched to bicaval venous cannulation for CPB in order to be prepared for trans-right atrial VSD closure, in case trans-aortic VSD closure was not amenable. The surgeons finally substantiated our finding of 3D TEE when they removed the perforated posterior coronary cusp en-bloc [Figure 6]. Following rewarming, patient was weaned off CPB successfully, with minimum inotropic support [[Figure 7]a, b, and Video 3]. The patient was discharged on 5 th postoperative day following an uneventful postoperative period.{Figure 5}{Figure 6}{Figure 7}

[MULTIMEDIA:3]

 Discussion



Ruptured sinus of valsalva aneurysm often presents a diagnostic dilemma owing to its varied clinical presentations. [4] Differential diagnosis of RSOVA from other acyanotic heart diseases accompanied by a continuous murmur includes-patent ductus arteriosus, pulmonary arteriovenous fistula, coronary arteriovenous fistula, VSD combined with aortic regurgitation and aortopulmonary window. Therefore, accurate preoperative diagnosis is essential to determine the urgency of surgery and technique of surgical, anesthetic and CPB approach and should be reaffirmed intraoperatively by TEE.

In surgical procedures involving the left side of the heart, dual-stage venous cannulation is usually the preferred method because it ensures the best decompression of the right heart and is fast and easy. [5] Whereas, whenever right atriotomy is required such as in the presence of a left-to-right communication, bicaval communication is mandatory. [5] Dual stage venous cannulation, in presence of a left-to-right communication can entrain air upon opening the aorta, and thereby result in inadequate venous drainage or result in unnoticed continuous air lock in venous line, which can be catastrophic. [5] Therefore, it is always crucial to identify any shunt flow present if at all and consequently modify the venous drainage technique for safe and uneventful CPB performance. A comprehensive intraoperative TEE evaluation in our case thus enabled us in accurately identifying a missed diagnosis and helped us guide our surgical colleagues to make necessary changes in surgical steps.

In the era of evidence-based medicine, with increasing awareness about health care provisions and legal rights, cardiac anesthesiologists are integral to clinical decision-making and therapeutic outcome. Over the years, TEE has fast emerged not only as an essential monitoring instrument but also as a therapeutic tool for a cardiac anesthesiologist, influencing the perioperative course and results. Although TEE exam for suspected RSOV finds no mention in the latest 2010 published American Society of Anesthesiologists guidelines for TEE, there is enough scientific literature available that emphasizes impact of perioperative multiplane, color Doppler TEE over TTE and angiography in improving surgical, anesthetic, and intensive care management of patients suspected of RSOVA. [2],[3],[6],[7],[8] Garrido Martín et al. even concluded that TEE is the most accurate tool in the preoperative evaluation of RSOVA to right chambers. [8] Furthermore, with real-time imaging at high temporal and spatial resolution, 3D advancements of TEE allow delineation of precise cardiac anatomy which leaves no room for error and has been reported to provide both diagnostic and procedure advantages in interventional cases. [1],[9]

 Conclusion



To conclude whenever a rare pathology such as RSOVA draining into LV is encountered, other differential diagnosis including commonly associated lesions such as BAV and VSD should be suspected and must be thoroughly evaluated with intraoperative TEE.

References

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