scholarly journals Total laparoscopic resection by medial-retroperitoneal approach using virtual navigation: two case reports of primary retroperitoneal schwannoma

2022 ◽  
Vol 20 (1) ◽  
Author(s):  
Yuta Sato ◽  
Nobuhisa Matsuhashi ◽  
Yuto Sugie ◽  
Masashi Kuno ◽  
Shigeru Kiyama ◽  
...  
Keyword(s):  
Laparoscopic Resection ◽  
Case Reports ◽  
Three Dimensional ◽  
Vena Cava ◽  
Retroperitoneal Approach ◽  
Virtual Navigation ◽  
Renal Hilum ◽  
Retroperitoneal Schwannoma ◽  
Three Dimensional Images ◽  
The Right

Abstract Background We report two rare cases of retroperitoneal schwannoma completely resected by a laparoscopic medial-retroperitoneal approach aided by virtual navigation. Three-dimensional images have been used in liver and lung surgery, but there are few prior reports on retroperitoneal surgery. Case presentation These two case reports are of a 60-year-old man and a 40-year-old man with asymptomatic retroperitoneal schwannoma. In both cases, the tumors were located in the right renal hilum and were close to the duodenum, right ureter, and inferior vena cava. Simulation using three-dimensional images was performed before surgery, and a medial-retroperitoneal approach was performed to secure a wide surgical field. During the operation, we confirmed the location of the main feeder and the relationship between the tumor and organs with those shown on the three-dimensional images and performed total laparoscopic resection. Conclusion The medial-retroperitoneal approach provides operative safety. Preoperative simulation and intraoperative navigation with three-dimensional images, which can be freely rotated and interactively visualized from any angle, are useful methods to enhance the surgeon’s understanding of a patient’s specific anatomy and are especially effective when resecting a retroperitoneal tumor that is located in an anatomically deep and complex location.

scholarly journals Total Laparoscopic Resection by Retroperitoneal Approach Using Virtual Navigation: Two Case Reports of Primary Retroperitoneal Schwannoma

2021 ◽  
Author(s):  
Yuta Sato ◽  
Nobuhisa matsuhashi ◽  
Yuto Sugie ◽  
Masashi Kuno ◽  
Shigeru Kiyama ◽  
...  
Keyword(s):  
Laparoscopic Resection ◽  
Case Reports ◽  
Three Dimensional ◽  
Vena Cava ◽  
Retroperitoneal Approach ◽  
Virtual Navigation ◽  
Renal Hilum ◽  
Retroperitoneal Schwannoma ◽  
Three Dimensional Images ◽  
The Right

Abstract Background: We report two rare cases of retroperitoneal schwannoma completely resected by laparoscopic retroperitoneal approach aided by virtual navigation.Case presentation: These two case reports are of a 60‐year‐old man and a 40‐year‐old man with asymptomatic retroperitoneal schwannoma. In both cases, the tumors were located in the right renal hilum and were close to the duodenum, right ureter, and inferior vena cava. Simulation using three-dimensional images was performed before surgery, and a retroperitoneal approach was performed to secure a wide surgical field. During the operation, we confirmed the location of the main feeder and the relationship between the tumor and organs with those shown on the three-dimensional images and performed total laparoscopic resection.Conclusion: The retroperitoneal approach provides operative safety. Preoperative simulation and intraoperative navigation with three-dimensional images are useful methods to enhance the surgeon’s understanding of a patient’s specific anatomy and are especially effective when resecting a retroperitoneal tumor that is located in an anatomically deep and complex location.

scholarly journals A Rare Case Report of Unusual Path of Left Internal Jugular Central Line

2021 ◽  
pp. 1-3
Author(s):  
Rajashekar Rangappa Mudaraddi ◽  
Hany Fawzi Greiss ◽  
Navin Kumar Manickam
Keyword(s):  
Superior Vena Cava ◽  
Case Reports ◽  
Superior Vena ◽  
Vena Cava ◽  
Central Line ◽  
Left Superior Vena Cava ◽  
Common Procedure ◽  
Rare Case Report ◽  
The Right ◽  
Line Path

Central venous cannulation is the most common procedure performed in perioperative setting and intensive care unit. Many case reports reported unusual positioning of central line catheters. Here, we would like to report a case of central line path in persistent left superior vena cava, a rare entity with a course similar to the right internal jugular central line. Preoperative computed tomography chest showed duplex superior vena cava which was not reported.

scholarly journals 757 Cardio-TC role in patients selection for transcatheter edge to edge tricuspid repair

2021 ◽  
Vol 23 (Supplement_G) ◽  
Author(s):  
Edoardo Nobile ◽  
Valeria Cammalleri ◽  
Domenico De Stefano ◽  
Luka Vitez ◽  
Aurelio De Filippis ◽  
...  
Keyword(s):  
Spatial Resolution ◽  
Tricuspid Valve ◽  
High Spatial Resolution ◽  
Three Dimensional ◽  
Vena Cava ◽  
Endocardial Border ◽  
Centroid Distance ◽  
Study Population ◽  
Regurgitant Orifice Area ◽  
The Right

Abstract Aims Anatomic knowledge of the tricuspid valve (TV) is the first step in the management of patients with tricuspid regurgitation (TR) who are candidates for transcatheter tricuspid valve intervention (TTVI). Echocardiography is undoubtedly the first approach in assessing the aetiology and severity of TR and the size and function of the right chambers. Computed tomography (CT) provides a detailed morphological visualization of the cardiac structures owing to acquisition of 3D data with high spatial resolution. These findings may undoubtedly help in decision-making progress for novel transcatheter therapies. The purpose of the present study was to assess the geometrical changes of the TV complex using CT images, in patients suffering from functional TR and lead-induced TR. Methods The study population consisted of 21 consecutive patients with symptomatic severe TR referred to Policlinico Universitario Campus Biomedico between November 2020 and October 2021. Patients were prospectively included in the study only if they presented severe TR, diagnosed by echocardiography and underwent cardiac CT study dedicated to the right-chambers. The reconstructions were transferred to an external workstation for off-line image analysis. The following measurements were reported: tricuspid annulus area, perimeter, septal–lateral and antero-posterior diameters. Commissures were identified as antero-septal (AS), postero-septal (PS) and anteroposterior (AP). Were measured the inferior vena cava ostium to tricuspid valve centroid distance, anatomic regurgitant orifice area (AROA) and its position respect to the centroid, and the right chambers. Results All 21 patients underwent CT scan using Siemens SOMATOM Definition AS 128 Slice CT Machine. The measurements were calculated off-line using the 3mensio workstation. In our study population, the annulus resulted enlarged in the annulus area, perimeter, septal-lateral and anterior-posterior dimensions. Measurements did not differ significantly, except for the septal-lateral diameter that was smaller in systole (52.80 ± 7.28 mm vs. 47.83 ± 6.83 mm (P=0.027). Also, distances between the commissures were similar except for the AP-AS distance that was shorter in systole (45.26 ± 3.48 mm vs. 42.13 ± 3.73, P=0.007). The AROA resulted to be central in 7 patients, the IVC ostium to TV centroid distance was 23±3 mm. Right chambers and IVC resulted very enlarged in all patients. Conclusions CT provides a complete morphologic imaging of the heart structures, thanks to a high spatial resolution with excellent capacity to define the endocardial border and allows acquisition of three-dimensional data with high spatial resolution of the TV and provides valuable information about the geometric variations of the tricuspid complex in patients with TR. Image quality for analysis should be optimized with specific CT acquisition protocols that focus on the right ventricles.

scholarly journals Variant Termination of The Right Testicular Vein A Case Report

2018 ◽  
Vol 4 (1) ◽  
pp. 36-37
Author(s):  
Abdi HM Syed ◽  
Sanjay Sah
Keyword(s):  
Case Report ◽  
Inferior Vena Cava ◽  
Renal Vein ◽  
Inferior Vena ◽  
Case Reports ◽  
Vena Cava ◽  
Medical Sciences ◽  
Testicular Vein ◽  
The Right

This case report pertains to a variant termination of the right testicular vein into a large lower tributary of the right renal vein, instead of opening into the inferior vena cava. Since the lower vein in which the right testicular vein opened did not join the inferior vena cava directly, therefore there is no real duplication of the right renal vein which has been found in some previous case reports. The right renal vein had its normal termination into the inferior vena cava. Embryological explanation of the anomalous termination of the right testicular vein has been given.Journal of Universal College of Medical Sciences (2016) Vol.04 No.01 Issue 13, Page: 36-37

scholarly journals METHOD FOR DESIGNING SURGICAL ACCESS FOR ADRENALECTOMY USING 3D-MODELING

2020 ◽  
Vol 23 (2) ◽  
pp. 165-171
Author(s):  
P. N. Romashchenko ◽  
I. S. Zheleznyak ◽  
N. A. Maistrenko ◽  
S. G. Bliumina
Keyword(s):  
Inferior Vena Cava ◽  
Inferior Vena ◽  
Left Kidney ◽  
Three Dimensional ◽  
Vena Cava ◽  
Vascular Complications ◽  
Risk Criteria ◽  
Surgical Access ◽  
Preoperative Ct ◽  
The Right

In the literature, insufficient attention is paid to the preoperative planning of the approach to adrenal glands using the modern capabilities of computed tomography (CT) navigation. The aim of the work was to demonstrate the possibilities of designing safe access for adrenalectomy using three-dimensional printed models based on preoperative CT data. The possibilities of preoperative access design for edrenalectomy were studied in 362 adrenal tumor patients who underwent CT imaging on Aquillion 64 (Toshiba, Japan), followed by post-processor image processing, construction of multi-plane and 3D reconstructions. All patients were divided into retrospective (n=157) and prospective (n=205) groups. In 3 clinical cases, preoperative access design was supplemented by the creation of a three-dimensional printed model of the adrenal gland with a tumor using the Slicer 4.10.1 software. Reliable anthropometric (body mass index, body shape) and CT-criteria for designing surgical access to the left and right adrenals were determined: diameter of formation; tumor syntopy in relation to the walls of the inferior vena cava; the length of the central adrenal vein and the place where it flows into the inferior vena cava; the location of the tumor relative to the inferior vein of the right lobe of the liver, as well as relative to the gate of the right kidney; location near the aortic-renal vascular triangle, gate of the left kidney and spleen vessels. Three patients with a borderline number of risk criteria for the development of vascular complications associated with the technical difficulties of adrenalectomy (for right adrenals≥4, for left adrenals≥3) underwent CT-segmentation of images with the subsequent creation of three-dimensional plates - a model of an NP tumor with neighboring organs and vessels. Preoperative CT design of the approach, taking into account the risk criteria for complications and the use of 3-D printed models, can reasonably apply endoscopic and open options for adrenalectomy, significantly improving the immediate results of treatment of patients.

scholarly journals Transjugular approach for zero-fluoroscopy catheter ablation of the right anterolateral accessory pathway

2019 ◽  
Vol 88 (9-10) ◽  
pp. 464-67
Author(s):  
Tine Prolič Kalinšek ◽  
David Žižek ◽  
Matevž Jan
Keyword(s):  
Catheter Ablation ◽  
Inferior Vena Cava ◽  
Inferior Vena ◽  
Accessory Pathway ◽  
Three Dimensional ◽  
Vena Cava ◽  
Intracardiac Echocardiography ◽  
Congenital Agenesis ◽  
The Right ◽  
Zero Fluoroscopy

We present a case of successful zero-fluoroscopy catheter ablation (CA) of the right anterolateral accessory (AP) pathway via a transjugular approach in an 18-year-old patient with a congenital agenesis of inferior vena cava (IVC). Three-dimensional (3D) electroanatomic mapping (EAM) system and intracardiac echocardiography (ICE) were used to navigate the catheters in the heart.

scholarly journals Double right renal vein: clinical and surgical implications and review of the literature

2015 ◽  
Vol 4 (2) ◽  
pp. 178
Author(s):  
José Aderval Aragão ◽  
Helen Lima Gomes ◽  
Hiago Vinícius Dantas Costa ◽  
Israel Santos Marcelo ◽  
Paula Santos Nunes
Keyword(s):  
Kidney Transplantation ◽  
Renal Vein ◽  
Vena Cava ◽  
Renal Veins ◽  
Surgical Interventions ◽  
Vascular Morphology ◽  
Male Cadaver ◽  
Renal Hilum ◽  
The Right ◽  
Renal Vascular

<p><strong>Context:</strong> Variations in renal vascular morphology are relatively common and involve both the renal arteries and the renal veins. Presence of supernumerary vessels is the variation most frequently encountered. Knowledge of such findings is valuable for urologists with regard to kidney transplantation, nephrectomy, vascular anastomosis, selective catheterization and many other surgical procedures on the kidneys.</p><p><strong>Objective:</strong> To report on a case of duplication of the right renal vein and its clinical and surgical implications.</p><p><strong>Case report:</strong> In one dissected specimen from a male cadaver, the presence of two right renal veins parallel to each other was observed in a position anteroinferior to the right renal artery. One vein emerged from the upper portion of the renal hilum, while the other emerged from the lower portion of the hilum. The two veins drained separately into the inferior vena cava, and neither of them received any tributaries.</p><p><strong>Conclusion:</strong> Knowledge of these vascular variations is important for urologists, vascular surgeons and radiologists, given that performing angiography prior to surgical interventions in the retroperitoneal space avoids complications, especially with regard to kidney transplantation.</p>

Invasive Epithelioid Angiomyolipoma with Tumor Thrombus in the Inferior Vena Cava: A Case Report and Literature Review

2015 ◽  
Vol 98 (1) ◽  
pp. 120-124 ◽  
Author(s):  
Xinxiang Que ◽  
Youming Zhu ◽  
Changjiang Ye ◽  
Dongbin Bi ◽  
Jianqun Fan ◽  
...  
Keyword(s):  
Inferior Vena Cava ◽  
Tumor Thrombus ◽  
Inferior Vena ◽  
Case Reports ◽  
Vena Cava ◽  
Renal Angiomyolipoma ◽  
Epithelioid Angiomyolipoma ◽  
The Common ◽  
Aggressive Tumor ◽  
The Right

Renal angiomyolipoma (AML) is a benign tumor. However, rare cases of renal AML demonstrate aggressive behaviors such as tumor thrombus extension into the inferior vena cava (IVC). We successfully treated a case of epithelioid AML in the right kidney involving the IVC. We also reviewed and analyzed 45 case reports of the common type of AML. Radiologists and clinicians should know that epithelioid AML can be an aggressive tumor.

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