BACKGROUND Esophageal stricture is one of the complications after esophageal varices sclero-therapy injection(ESI),and the incidence rate is between 2%-10%.AIM To explore the efficacy of self-expanding metal stent(SEM...BACKGROUND Esophageal stricture is one of the complications after esophageal varices sclero-therapy injection(ESI),and the incidence rate is between 2%-10%.AIM To explore the efficacy of self-expanding metal stent(SEMS)for the stricture after endoscopic injection with cyanoacrylate(CYA)and sclerotherapy for esophageal varices.METHODS We retrospectively analyzed the efficacy of SEMS to improve the stricture after endoscopic injection with CYA and sclerotherapy for esophageal varices in 4 patients from February 2023 to June 2023.RESULTS The strictures were improved in four patients after stenting.The stent was removed after two weeks because of chest pain with embedding into esophageal mucosa in one patient.The stent was removed after one month,however,the stent was reinserted because of the strictures happening again in two patients.The stent was removed after three months,however,the stent was reinserted because of the strictures happening again in one patient.The stent embedded into esophageal mucosa in three patients.There were 3 patients suffered reflux esophagitis,and the acid reflux was relieved by taking hydrotalcite.There was no other complication of esophageal perforation,bleeding from varices or infection.CONCLUSION SEMS may relieve the stricture which happened after endoscopic injection with CYA and sclerotherapy for esophageal varices.However,when we should remove the stent still needs to be explored.展开更多
BACKGROUND The stent embedded in the esophageal mucosa is one of the complications after stenting for esophageal stricture.We present a case of stent adjustment with the aid of a transparent cap after endoscopic injec...BACKGROUND The stent embedded in the esophageal mucosa is one of the complications after stenting for esophageal stricture.We present a case of stent adjustment with the aid of a transparent cap after endoscopic injection of an esophageal varices stent.CASE SUMMARY A 61-year-old male patient came to the hospital with discomfort of the chest after the stent implanted for the stenosis because of endoscopic injection of esophageal varices.The gastroscopy was performed,and the stent embedded into the esophageal mucosa.At first,we pulled the recycling line for shrinking the stent,however,the mucosa could not be removed from the stent.Then a forceps was performed to remove the mucosa in the stent,nevertheless,the bleeding form the mucosa was obvious.And then,we used a transparent cap to scrape the mucosa along the stent,and the mucosa were removed successfully without bleeding.CONCLUSION A transparent cap helps gastroscopy to remove the mucosa embedded in the stent after endoscopic injection of the esophageal varices stent.展开更多
Rotating orthogonal polarization imaging provides images of the polarization properties of scattering media which are free from surface reflections.Previously the technique has been demonstrated using manually rotated...Rotating orthogonal polarization imaging provides images of the polarization properties of scattering media which are free from surface reflections.Previously the technique has been demonstrated using manually rotated Glan–Thompson polarizers to control and analyze the polarization state of the light entering and emerging from the tissue.This paper describes a system that performs these functions using liquid crystal retarders.The system is tested using a polarizing target embedded within a scattering medium and is compared with Monte Carlo simulations.The results compare well with those obtained with manual rotation of polarizers.The liquid crystal based approach has advantages over the previous system in terms of ease of use,speed,and repeatability and is therefore an important step towards taking the technique into routine clinical use.展开更多
cDNA fragment of the gene (dehydration induced, di1) of wheat (Triticum aestivum. L) induced by 30% PEG-6000 (-1.13 MPa) treatment was isolated with mRNA differential display technique. Northern blot analysis showed t...cDNA fragment of the gene (dehydration induced, di1) of wheat (Triticum aestivum. L) induced by 30% PEG-6000 (-1.13 MPa) treatment was isolated with mRNA differential display technique. Northern blot analysis showed that the expression of di1 gene improved at 10 h reached the highest at 48 h under 30% PEG-6000 treatment, cDNA fragment of di1 gene has been cloned and sequenced (211 bp). DNA sequence analysis shows that there is no homologue in GenBank to di1 cDNA.展开更多
文摘BACKGROUND Esophageal stricture is one of the complications after esophageal varices sclero-therapy injection(ESI),and the incidence rate is between 2%-10%.AIM To explore the efficacy of self-expanding metal stent(SEMS)for the stricture after endoscopic injection with cyanoacrylate(CYA)and sclerotherapy for esophageal varices.METHODS We retrospectively analyzed the efficacy of SEMS to improve the stricture after endoscopic injection with CYA and sclerotherapy for esophageal varices in 4 patients from February 2023 to June 2023.RESULTS The strictures were improved in four patients after stenting.The stent was removed after two weeks because of chest pain with embedding into esophageal mucosa in one patient.The stent was removed after one month,however,the stent was reinserted because of the strictures happening again in two patients.The stent was removed after three months,however,the stent was reinserted because of the strictures happening again in one patient.The stent embedded into esophageal mucosa in three patients.There were 3 patients suffered reflux esophagitis,and the acid reflux was relieved by taking hydrotalcite.There was no other complication of esophageal perforation,bleeding from varices or infection.CONCLUSION SEMS may relieve the stricture which happened after endoscopic injection with CYA and sclerotherapy for esophageal varices.However,when we should remove the stent still needs to be explored.
基金Supported by Hangzhou Agricultural and Social Development Research Guidance Project,No.20220919Y037.
文摘BACKGROUND The stent embedded in the esophageal mucosa is one of the complications after stenting for esophageal stricture.We present a case of stent adjustment with the aid of a transparent cap after endoscopic injection of an esophageal varices stent.CASE SUMMARY A 61-year-old male patient came to the hospital with discomfort of the chest after the stent implanted for the stenosis because of endoscopic injection of esophageal varices.The gastroscopy was performed,and the stent embedded into the esophageal mucosa.At first,we pulled the recycling line for shrinking the stent,however,the mucosa could not be removed from the stent.Then a forceps was performed to remove the mucosa in the stent,nevertheless,the bleeding form the mucosa was obvious.And then,we used a transparent cap to scrape the mucosa along the stent,and the mucosa were removed successfully without bleeding.CONCLUSION A transparent cap helps gastroscopy to remove the mucosa embedded in the stent after endoscopic injection of the esophageal varices stent.
基金the Engineering and Physical SciencesResearch Council(EP/C534247/1)。
文摘Rotating orthogonal polarization imaging provides images of the polarization properties of scattering media which are free from surface reflections.Previously the technique has been demonstrated using manually rotated Glan–Thompson polarizers to control and analyze the polarization state of the light entering and emerging from the tissue.This paper describes a system that performs these functions using liquid crystal retarders.The system is tested using a polarizing target embedded within a scattering medium and is compared with Monte Carlo simulations.The results compare well with those obtained with manual rotation of polarizers.The liquid crystal based approach has advantages over the previous system in terms of ease of use,speed,and repeatability and is therefore an important step towards taking the technique into routine clinical use.
文摘cDNA fragment of the gene (dehydration induced, di1) of wheat (Triticum aestivum. L) induced by 30% PEG-6000 (-1.13 MPa) treatment was isolated with mRNA differential display technique. Northern blot analysis showed that the expression of di1 gene improved at 10 h reached the highest at 48 h under 30% PEG-6000 treatment, cDNA fragment of di1 gene has been cloned and sequenced (211 bp). DNA sequence analysis shows that there is no homologue in GenBank to di1 cDNA.
