Dataset Information

Chylous ascites with lymphatic leakage localization: technical aspects and clinical applications.

ABSTRACT:

Background

Carbon nanoparticle suspension (CNS) was applied to locate the lymphatic leakage in chylous ascites (CA). However, the flow speed and distance of the CNS were particularly decreased in the following two cases (patient 5 and 6). This study aimed to investigate and improve the flow speed and distance of the CNS via a rat model.

Methods

Seven patients with CA were accepted for surgery in the past two years. Clinical data were recorded. Rats were divided into two groups to confirm the hypothesis regarding whether accepting milk or orally administered food before surgery was the key factor in CA surgery with CNS. The animals were divided into 2 groups: experimental group of 5 rats receiving fat emulsion injection (2 g/kg) 30 min before the operation and control group of 5 rats receiving saline. We analyzed flow speed and distance of the CNS in two groups of rats. The hypothesis established was that CNS movements pattern differ depending on the degree of capillary lymph duct filling. Finally, the late case reconfirmed the hypothesis again.

Results

In animal experiments, the CNS in the preoperative high-fat feeding group moved faster and over a longer distance than that in the control group (0.51 ± 0.09 cm vs. 0.19 ± 0.10 cm, respectively; p < 0.05). Based on this, the CNS was applied to the seventh patient, who had been given a diet with a slightly higher fat content 3 days before the operation, and marked improvement with a complete cure was recorded.

Conclusions

The capillary lymph duct was beginning to swell after dietary intake. The dilation of the lymph vessel could make it easier for the CNS to move and reach the leakage.

SUBMITTER: Lu C

PROVIDER: S-EPMC9077892 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature

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Publications

Chylous ascites with lymphatic leakage localization: technical aspects and clinical applications.

Lu Chaoxiang C Wang Lei L Gao Qi Q

BMC surgery 20220506 1

<h4>Background</h4>Carbon nanoparticle suspension (CNS) was applied to locate the lymphatic leakage in chylous ascites (CA). However, the flow speed and distance of the CNS were particularly decreased in the following two cases (patient 5 and 6). This study aimed to investigate and improve the flow speed and distance of the CNS via a rat model.<h4>Methods</h4>Seven patients with CA were accepted for surgery in the past two years. Clinical data were recorded. Rats were divided into two groups to ...[more]

PMID: 35524233

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Project description:BackgroundChatbots are applications that can conduct natural language conversations with users. In the medical field, chatbots have been developed and used to serve different purposes. They provide patients with timely information that can be critical in some scenarios, such as access to mental health resources. Since the development of the first chatbot, ELIZA, in the late 1960s, much effort has followed to produce chatbots for various health purposes developed in different ways.ObjectiveThis study aimed to explore the technical aspects and development methodologies associated with chatbots used in the medical field to explain the best methods of development and support chatbot development researchers on their future work.MethodsWe searched for relevant articles in 8 literature databases (IEEE, ACM, Springer, ScienceDirect, Embase, MEDLINE, PsycINFO, and Google Scholar). We also performed forward and backward reference checking of the selected articles. Study selection was performed by one reviewer, and 50% of the selected studies were randomly checked by a second reviewer. A narrative approach was used for result synthesis. Chatbots were classified based on the different technical aspects of their development. The main chatbot components were identified in addition to the different techniques for implementing each module.ResultsThe original search returned 2481 publications, of which we identified 45 studies that matched our inclusion and exclusion criteria. The most common language of communication between users and chatbots was English (n=23). We identified 4 main modules: text understanding module, dialog management module, database layer, and text generation module. The most common technique for developing text understanding and dialogue management is the pattern matching method (n=18 and n=25, respectively). The most common text generation is fixed output (n=36). Very few studies relied on generating original output. Most studies kept a medical knowledge base to be used by the chatbot for different purposes throughout the conversations. A few studies kept conversation scripts and collected user data and previous conversations.ConclusionsMany chatbots have been developed for medical use, at an increasing rate. There is a recent, apparent shift in adopting machine learning-based approaches for developing chatbot systems. Further research can be conducted to link clinical outcomes to different chatbot development techniques and technical characteristics.

Dataset Information

Chylous ascites with lymphatic leakage localization: technical aspects and clinical applications.

Background

Methods

Results

Conclusions

Publications

Chylous ascites with lymphatic leakage localization: technical aspects and clinical applications.

Similar Datasets

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