• Title, Summary, Keyword: balloon dilation

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Retrograde balloon dilation as a therapeutic option for post-gynecologic surgery ureteral stricture followed by ureteroureterostomy: a comparative study regarding stricture length

  • Lim, Geon Woo;Yu, Young Dong;Choi, Kyung Hwa;Rhee, Seung Ryeol;Park, Dong Soo;Hong, Young Kwon
    • Yeungnam University Journal of Medicine
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    • v.35 no.2
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    • pp.179-186
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    • 2018
  • Background: To evaluate the success rate of balloon dilation and the factors possibly influencing the outcomes of balloon dilation for the ureteric strictured portion of ureteroureterostomy (UUS) site in patients with post-gynecologic surgeries. Methods: A single institution data base was screened for the patients who received balloon dilation for a treatment of ureteral stricture diagnosed after gynecologic surgery. Overall 114 patients underwent primary intra-operative UUS due to ureteral injury during gynecologic surgery. Among them, 102 patients received balloon dilation, and their medical records were retrospectively reviewed. Success of balloon dilation was defined as the condition that requires no further clinical interventions after 6 months from balloon dilation. Results: The ureter injury rate of women treated with open radical abdominal hysterectomy was highest (32 cases, 31.4%). 60 patients (60.8%) showed successful outcomes regarding dilation. All patients underwent technically successful dilation with a full expansion of balloon during the procedure, but 40 patients (39.2%) were clinically unsuccessful as they showed a recurrence of ureteral stricture on the previous balloon dilation site after the first dilation procedure. Univariate logistic regression analyses showed that stricture length >2 cm was a significant predictor of successful dilation (odds ratio, 0.751; 95% confidence interval, 0.634-0.901; p-value, 0.030), but it failed to achieve independent predictor status in multivariate analysis. Conclusion: Balloon dilation can an effective alternative treatment option for strictured portion of the primary UUS in post-gynecologic surgery patients when its length is <2 cm.

Radioisotope Treatment for Benign Strictures of Non-vascular Luminal Organs (비혈관성 관강 장기의 양성 협착 질환의 방사성동위원소 치료)

  • Shin, Ji-Hoon
    • Nuclear Medicine and Molecular Imaging
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    • v.40 no.2
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    • pp.106-112
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    • 2006
  • Tissue hyperplasia is one of the most frequently encountered complications when self-expanding metallic stents are placed in benign non-vascular luminal organ strictures, thus causing restenosis of the lumen. The investigators postulated that ionizing irradiation could be applied to prevent restenosis caused by tissue hyperplasia in non-vascular luminal organs as it reduced coronary or peripheral arterial narrowing successfully. The authors combined $\beta$-irradiation using $^{188}Re-MAG_3$ solution with balloon dilation for animal and clinical studies because this new treatment approach had the advantages such as low penetration depth of $\beta$-ray, self-centering irradiation, and mechanical effect of balloon dilation over using $\gamma$-irradiation with afterloading devices in this article, the concept and mechanism of radioisotope balloon dilation, and animal and clinical studies using radioisotope balloon dilation are reviewed.

Effect of Adjunct Balloon Dilation after Long Everolimus-eluting Stent Deployment on Major Adverse Cardiac Events

  • Hong, Sung-Jin;Ahn, Chul-Min;Shin, Dong-Ho;Kim, Jung-Sun;Kim, Byeong-Keuk;Ko, Young-Guk;Choi, Donghoon;Her, Ae-Young;Kim, Yong Hoon;Jang, Yangsoo;Hong, Myeong-Ki
    • Korean Circulation Journal
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    • v.47 no.5
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    • pp.694-704
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    • 2017
  • Background and Objectives: The effectiveness of adjunct balloon dilation after drug-eluting stent (DES) deployment has not been sufficiently evaluated. We evaluated whether adjunct balloon dilation was associated with a reduction in major adverse cardiac events (MACEs) after long everolimus-eluting stents (EESs) implantation. Subjects and Methods: Drawing from 2 randomized trials, a total of 1,672 patients treated with long EES were analyzed. Of 1,672 patients, 1,061 patients (64%) received post-stent adjunct balloon dilation. MACE, defined as a composite of cardiac death, myocardial infarction, and target-lesion revascularization (TLR), was compared between patients who received post-stent adjunct balloon dilation and patients who did not in 595 propensity score-matched pairs. Results: For the matched population, MACE occurred in 29 patients (4.9%) who received adjunct balloon dilation and in 29 patients (4.9%) who did not (hazard ratio [HR], 1.01; 95% confidence interval [CI], 0.60-1.69; p=0.972). However, significant interactions were observed among the subgroups for clinical presentation and vessel size. Adjunct balloon dilation was more favored within the subset of patients with stable angina vs. the subset of patients with acute coronary syndrome (p for interaction=0.037), and within the subset of lesions with small vessel diameter (reference vessel diameter [RVD] <3 mm) vs. the subset of lesions with larger vessel diameter (RVD ${\geq}3mm$; p for interaction=0.027). Conclusion: Adjunct balloon dilation was not associated with MACE reduction at 1 year among patients requiring long EES implantation. However, post-stent adjunct balloon dilation may be necessary for patients requiring long EES implantation who present with stable angina or for lesions with small vessel diameters.

Balloon dilation with triamcinolone intralesional injection successfully treated rectal stricture in a three-month kitten

  • Lee, Hee-Ryung;Adam, Gareeballah Osman;Lee, Sei-Jin;Kim, Shang-Jin
    • Korean Journal of Veterinary Research
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    • v.60 no.1
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    • pp.39-42
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    • 2020
  • This report describes a three-month-old Korean domestic kitten presented with dehydration and poor body condition. Physical examination revealed abdominal distension. Rectal diagnosis was unachievable due to the small rectum diameter. X-ray radiography and endoscopy confirmed presence of abdominal distension and indicated a stricture located 1.5 cm from the anus. A balloon was gently inserted into the rectum and inflated several times followed by triamcinolone injection. Four months later, same procedures were repeated. This report is the first to describe the use of balloon dilation of a rectal stricture followed by intralesional triamcinolone injection in a small cat with poor condition.

Balloon dilation of double chambered right ventricle in a dog (우심실 양분증 이환견에 대한 풍선확장술 시술 증례)

  • Kim, Jin-Wook;Yoon, Byung-Gook;Park, Jun-Seok;Kim, Jung-Kuk;Lee, Ki-Ho;Park, Hyung-Jin;Hur, Chan;Seo, Kyoung-Won;Song, Kun-Ho
    • Korean Journal of Veterinary Service
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    • v.40 no.1
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    • pp.67-70
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    • 2017
  • A 4 months old, intact male Shih-tzu was referred to the Veterinary Medical Teaching Hospital of Chungnam National University for evaluation of the cause of cardiac murmur and syncope. Thoracic radiography revealed right-sided cardiomegaly. Echocardiography showed marked hypertrophy of right ventricular free wall and obstruction of right ventricular outflow tract, indicating double chambered right ventricle (DCRV). The dog was medicated with atenolol and sildenafil for DCRV, however, clinical signs did not control by medication. Balloon dilation for DCRV was performed to ameliorate patient's clinical signs. The peak systolic pressure gradient across the obstruction region was decreased and clinical signs was improved by balloon dilation procedure. This is the first case report of balloon dilation for the treatment of canine DCRV in South Korea.

Endoscopic Balloon Dilatation in Children with Congenital and Acquired Esophageal Anomalies (소아의 선천성 및 후천성 식도 질환에서 내시경적 풍선 확장술)

  • Kwak, Ju Yuong;Park, Jae Hong
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • v.8 no.2
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    • pp.137-142
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    • 2005
  • Purpose: To evaluate the safety, efficacy and technical problems of the endoscopic balloon dilatation of esophageal anomalies in children. Methods: The medical records of 8 children treated by endoscopic balloon dilatation for esophageal anomalies over a 10-year period at Pusan National University Hospital were reviewed retrospectively. The balloon catheter (Maxforce TTS or CRE, Boston Scientific Co., USA) was positioned across the area of narrowing by direct visualization. The balloon was slowly inflated with normal saline to specified pressures for each balloon and maintained for 60 seconds and then deflated. After 60 seconds pause, the procedure was repeated with a larger sized balloon (increments of 1 mm for each subsequent dilation) till effective dilatation was confirmed by direct visualization without complications. Results: Three male and five female were included and their mean age was 4.2 years. A total of 27 (average of 3.2 per patient) dilatation were performed. Underlying diseases of patients are postoperative stricture of esophageal atresia in 3 cases, esophageal ring in 2 cases, achalasia, corrosive esophagitis and hypertensive LES in one case respectively. The size of initial dilating balloon was chosen on the basis of the diameter of the narrowing determined by endoscopy. The first dilation in patients with severe esophageal stricture was made with a 6 mm sized balloon. Complications observed were esophageal perforation and respiratory holding during the procedure in one case respectively. Successful outcome was seen in 6 patients (75%). Conclusion: Endoscopic balloon dilatation can provide a safe and effective mean of treating esophageal anomalies in children and should be considered the treatment of choice in the initial management of those cases.

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Balloon dilatation in a chow chow dog with Cor triatriatum dexter

  • Kim, Jung-Kook;Park, Jun-Seok;Han, A-Ram;Lee, Ki-Ho;Seo, Kyoung-Won;Song, Kun-Ho
    • Korean Journal of Veterinary Service
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    • v.40 no.3
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    • pp.215-217
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    • 2017
  • A 3-year-old chow chow dog with abdominal distention was referred to the Veterinary Teaching Hospital of Chungnam National University. The dog was diagnosed as Cor triatriatum dexter based on echocardiographic results, which demonstrated an abnormal membrane partitioning the right atrium. Echocardiography also revealed turbulent intra-atrial blood flow between the two chambers of the atrium. The dog was treated with balloon dilatation to enlarge the perforation in the abnormal membrane and to improve blood flow. As a result, although the membrane remained, increased perforation reduced the turbulent intra-atrial blood flow. Clinically the patient improved and eventually was discharged. This case is the first domestic Korean clinical veterinary report on the use of balloon valvuloplasty to treat Cor triatriatum dexter in a dog.

Pulmonic stenosis corrected by balloon valvuloplasty in a Maltese dog

  • Lee, Seung-Gon;Moon, Hyeong-Sun;Hyun, Changbaig
    • Korean Journal of Veterinary Research
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    • v.47 no.3
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    • pp.333-336
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    • 2007
  • A 6-month-old intact male Maltese dog (2.5 kg of body weight) was presented with the primary complaint of heart murmur and exercise intolerance. Diagnostic studies revealed severe pulmonic stenosis. Since the pressure gradient in stenotic pulmonic valve area was higher than 200 mmHg (maximum flow velocity = 7.1 m/s), the dog was underwent balloon valvuloplasty. With this procedure, the peak pulmonic velocity was reduced to 3.0 m/s (PG = 36 mmHg). Periodic re-evaluations performed in monthly interval revealed no further deterioration even after 4 month of procedure. This is the first case report of pulmonic stenosis fixed by non-surgical balloon valvuloplasty in Korea.

Endoscopic Balloon Dilation for Treatment of Congenital Antral Web

  • Peck, Jacquelin;Khalaf, Racha;Marth, Ryan;Phen, Claudia;Sosa, Roberto;Cordero, Francisco Balsells;Wilsey, Michael
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • v.21 no.4
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    • pp.351-354
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    • 2018
  • Congenital antral webs are a rare but relevant cause of gastric outlet obstruction in infants and children. The condition may lead to feeding refusal, vomiting, and poor growth. Due to the relative rarity of the disease, cases of congenital antral web are frequently misdiagnosed or diagnosed with significant delay as physicians favorably pursue diagnoses of pyloric stenosis and gastric ulcer disease, which are more prevalent. We report a case of an eight-month-old female who presented with persistent non-bilious emesis, feeding difficulties, and failure to thrive and was discovered to have an antral web. The web was successfully treated with endoscopic balloon dilation, which resolved her symptoms. Two years later, the patient remains asymptomatic and is thriving with weight at the 75th percentile for her age.