Intra-mural distribution of the blood vessels in the stomach demonstrated by contrast medium injection: a cadaver study

Eishi, Haruka; Yamaguchi, Kumiko; Hiramatsu, Yoshihiro; Akita, Keiichi

doi:10.1007/s00276-020-02613-5

Cited by 8 publications

(6 citation statements)

References 21 publications

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“…It could be shown that there is no sign of relevant longitudinal capillary perfusion, but proof of perfusion along the gastroepiploic artery as seen in Figure 3, Supplementary Text 2 and Supplementary Figure 2. This observation matches results from human anatomical studies, which showed that larger capillaries are distributed perpendicular to both gastric curvature sides and only small capillary branches parallel to both curvature sides originate from these to form a vascular network throughout the stomach wall 39 . The dominant direction of flow is therefore not a random pattern along the longitudinal axis of the conduit.…”

Section: Discussionsupporting

confidence: 90%

Optimization of anastomotic technique and gastric conduit perfusion with hyperspectral imaging in an experimental model for minimally invasive esophagectomy

Nickel

Studier-Fischer

Oezdemir

et al. 2021

Preprint

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Objective: To optimize anastomotic technique and gastric conduit perfusion with hyperspectral imaging (HSI) for total minimally invasive esophagectomy (MIE) with linear stapled anastomosis. Summary Background Data: Esophagectomy is the mainstay of esophageal cancer treatment but anastomotic insufficiency related morbidity and mortality remain challenging for patient outcome. Methods: A live porcine model (n=50) for MIE was used with gastric conduit formation and linear stapled side-to-side esophagogastrostomy. Four main experimental groups differed in stapling length (3 vs. 6 cm) and anastomotic position on the conduit (cranial vs. caudal). Tissue oxygenation around the anastomotic site was evaluated using HSI and was validated with histopathology. Results: The tissue oxygenation (ΔStO2) after the anastomosis remained constant only for the short stapler in caudal position (-0.4±4.4%, n.s.) while it dropped markedly in the other groups (short-cranial: -15.6±11.5%, p=0.0002; long-cranial: -20.4±7.6%, p=0.0126; long-caudal: -16.1±9.4%, p<0.0001) Tissue samples from deoxygenated stomach as measured by HSI showed correspondent eosinophilic pre-necrotic changes in 35.7±9.7% of the surface area. Conclusions: Tissue oxygenation at the anastomotic site of the gastric conduit during MIE is influenced by stapling technique. Optimal oxygenation was achieved with a short stapler (3 cm) and sufficient distance of the anastomosis to the cranial end of the gastric conduit. HSI tissue deoxygenation corresponded to histopathologic necrotic tissue changes. These findings allow for optimization of gastric conduit perfusion and anastomotic technique in MIE.

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Section: Discussionsupporting

confidence: 90%

Optimization of anastomotic technique and gastric conduit perfusion with hyperspectral imaging in an experimental model for minimally invasive esophagectomy

Nickel

Studier-Fischer

Oezdemir

et al. 2021

Preprint

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“…Based on the exception injector, the CPU load is suddenly increased for a period of time by triggering the modification of the RBE concurrency to double to occupy additional CPU resources, artificially causing a sudden change in virtual machine power consumption [21]. During the period from December 1 to December 3, the abnormal power injector introduced a power anomaly.…”

Section: E Effect Of Injection Exception Detectionmentioning

confidence: 99%

Integrated Energy Security Defense Monitoring Software Based on Cloud Computing

Shang

2022

Security and Communication Networks

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In order to solve the problem of outlier detection of integrated energy security defense monitoring software, an automatic detection algorithm of virtual machine power anomaly in a cloud computing environment is proposed. The method is implemented through three main steps: data preprocessing, pattern recognition, and prediction of virtual machine power anomaly detection model. It is found through experiments that with the increase of node number, the convergent iterations of the model are less and RMSE is lower, but the increase of node number of the hidden layer will lead to a longer model running time. When the number of nodes reaches 100, the test results of the validation set are significantly improved, and the loss function of the validation set is minimal when the number of nodes is less than 30 iterations. Finally, the hidden layer of the model consists of 100 LSTM units, followed by a dense output layer with 1 neuron, and 0.2 loss, retrospection, and foresight equal to 1. Adam optimizer was used to train LSTM and stop it in advance after 50 iteration steps. Its parameters remained default, with a learning rate of 0.001 and attenuation of 0.9. It can be seen that this model can well predict the virtual machine power consumption data and effectively solve the problem of outlier detection of integrated energy security defense monitoring software.

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“…GIH is rare, with only a few cases reported to date [ 2 , 4 ]. In the stomach wall, the arteries and veins are arranged side by side and distributed in a mesh-like pattern with a significant number of blood vessels in the submucosal layer [ 5 ]. The shredding of terminal arteries at the point of leaving the mesentery and penetrating the muscular layer with subsequent dissection of the muscularis propria from the submucosa leads to hematoma formation in the submucosal or muscular layer [ 1 , 6 ].…”

Section: Discussionmentioning

confidence: 99%

A Rare Case of Gastric Intramural Hematoma in Recurrent Leukemia

Alabd¹,

Deitch²

2022

Cureus

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Gastric intramural hematoma (GIH) is a rare disorder that usually arises secondary to another condition or intervention, and less often occurs without an identifiable cause. Computed tomography (CT), as performed in this case, is the diagnostic modality of choice. The treatment comprises conservative measures, a minimally invasive approach, or surgical intervention. We present a case of recurrent acute lymphoblastic leukemia (ALL) as a new etiology for GIH that was managed conservatively to highlight the importance of including GIH in the differential for a patient with ALL, a drop in hemoglobin level, and vague gastrointestinal symptoms.

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Intra-mural distribution of the blood vessels in the stomach demonstrated by contrast medium injection: a cadaver study

Cited by 8 publications

References 21 publications

Optimization of anastomotic technique and gastric conduit perfusion with hyperspectral imaging in an experimental model for minimally invasive esophagectomy

Optimization of anastomotic technique and gastric conduit perfusion with hyperspectral imaging in an experimental model for minimally invasive esophagectomy

Integrated Energy Security Defense Monitoring Software Based on Cloud Computing

A Rare Case of Gastric Intramural Hematoma in Recurrent Leukemia

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