scholarly journals Delayed Perforation of an Intrastromal Corneal Ring Segment into the Anterior Chamber: A Case Report and Review of the Literature

2021 ◽  
pp. 740-748
Author(s):  
Majid Moshirfar ◽  
Dallin C. Milner ◽  
Tanisha Martheswaran ◽  
Shannon E. McCabe ◽  
Yasmyne C. Ronquillo ◽  
...  
Keyword(s):  
Anterior Chamber ◽  
Ocular Trauma ◽  
Rare Complication ◽  
Review Of The Literature ◽  
The Third ◽  
Intrastromal Corneal Ring ◽  
Ring Segment ◽  
Delayed Perforation ◽  
Corneal Shape ◽  
Descemet Membrane Detachment

Intrastromal corneal ring segments (ICRSs) are an effective treatment for stabilizing and normalizing corneal shape in patients with keratoconus and other corneal ectasias. Intraoperative segment perforation through the corneal endothelium into the anterior chamber (AC) is an uncommon but known complication. However, perforation into the AC postoperatively is an exceedingly rare complication with only 3 reported cases in the literature. One case was due to Descemet membrane detachment and another due to ocular trauma. In the third case, the mechanism for perforation was unclear. We present the fourth case of delayed ICRS perforation due to silent migration through the endothelium into the AC. We also present all reported cases in the literature of intraoperative and postoperative perforation into the AC.

scholarly journals Iatrogenic Iliac Arteriovenous Fistula Management after Lumbar Discectomy Surgeries: A Case Report and Review of the Literature

2020 ◽  
Vol 23 (6) ◽  
pp. E863-E866
Author(s):  
Mihaela Salagean ◽  
Carmen Ginghina ◽  
Roxana Carmen Geana ◽  
Razvan Dragulescu ◽  
Andra Balcangiu Stroescu ◽  
...  
Keyword(s):  
Case Report ◽  
Arteriovenous Fistula ◽  
Rare Complication ◽  
Lumbar Vertebrae ◽  
Lumbar Discectomy ◽  
Review Of The Literature ◽  
Endovascular Technique ◽  
The Third ◽  
Good General Condition ◽  
Life Threatening

Iatrogenic iliac arteriovenous fistula (IAVF) is an extremely rare complication after lumbar discectomy surgery (LDS), with potentially life-threatening consequences. An IAVF results from the close anatomic relation between the iliac vessels and the last lumbar vertebrae and the corresponding discs. We report the case of a 45-year-old woman who developed a large right IAVF 3 years after L4-L5-S1 laminectomy. The arteriovenous fistula (AVF) was successfully treated with an endovascular technique using a WALLSTENT self-expanding stent. The postoperative period was uneventful, and the patient was discharged from the hospital in good general condition on the third postoperative day.

Experience of prenatal diagnosis of true knots of the umbilical cord during ultrasound examination in the third trimester of gestation

2019 ◽  
Author(s):  
M.Y. Morozova, V.V. Zotov, M.S. Kovalenko et all
Keyword(s):  
Prenatal Diagnosis ◽  
Umbilical Cord ◽  
Ultrasound Examination ◽  
Technological Advance ◽  
Prenatal Ultrasound ◽  
Ultrasound Diagnosis ◽  
Review Of The Literature ◽  
Third Trimester ◽  
The Third

Despite the rapid technological advance, the expansion of prenatal ultrasound diagnosis, as well as the accumulation of experience by both domestic and foreign experts, prenatal recognition of true knots of the umbilical cord causes significant difficulties. Three cases of successful ultrasound diagnosis of true knots of the umbilical cord and brief review of the literature are presented.

scholarly journals Indications and outcomes of enterovesical and colovesical fistulas: systematic review of the literature and meta-analysis of prevalence

BMC Surgery ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Stefano Granieri ◽  
Francesco Sessa ◽  
Alessandro Bonomi ◽  
Sissi Paleino ◽  
Federica Bruno ◽  
...  
Keyword(s):  
Systematic Review ◽  
Clinical Symptoms ◽  
Rare Complication ◽  
Meta Analysis ◽  
Treatment Options ◽  
Palliative Surgery ◽  
Review Of The Literature ◽  
Colovesical Fistula ◽  
Level Of Evidence ◽  
Meta Analyses

Abstract Background Entero-colovesical fistula is a rare complication of various benign and malignant diseases. The diagnosis is prominently based on clinical symptoms; imaging studies are necessary not only to confirm the presence of the fistula, but more importantly to demonstrate the extent and the nature of the fistula. There is still a lack of consensus regarding the if, when and how to repair the fistula. The aim of the study is to review the different surgical treatment options, focus on surgical indications, and explore cumulative recurrence, morbidity, and mortality rates of entero-vesical and colo-vesical fistula patients. Methods A systematic review of the literature was conducted according to PRISMA guidelines. Random effects meta-analyses of proportions were developed to assess primary and secondary endpoints. I2 statistic and Cochran’s Q test were computed to assess inter-studies’ heterogeneity. Results Twenty-two studies were included in the analysis with a total of 861 patients. Meta-analyses of proportions pointed out 5, 22.2, and 4.9% rates for recurrence, complications, and mortality respectively. A single-stage procedure was performed in 75.5% of the cases, whereas a multi-stage operation in 15.5% of patients. Palliative surgery was performed in 6.2% of the cases. In 2.3% of the cases, the surgical procedure was not specified. Simple and advanced repair of the bladder was performed in 84.3% and 15.6% of the cases respectively. Conclusions Although burdened by a non-negligible rate of complications, surgical repair of entero-colovesical fistula leads to excellent results in terms of primary healing. Our review offers opportunities for significant further research in this field. Level of Evidence Level III according to ELIS (SR/MA with up to two negative criteria).

Delayed leukoencephalopathy from suspected polymer embolism after neuroendovascular procedures

2021 ◽  
pp. 197140092110291
Author(s):  
Thomas Mellemkjær ◽  
Ronil V Chandra ◽  
Lasse Speiser ◽  
Benedicte P Ulhøi ◽  
Claus Z Simonsen
Keyword(s):  
Polymer Material ◽  
Endovascular Procedures ◽  
Rare Complication ◽  
Diagnostic Process ◽  
Line Treatment ◽  
Review Of The Literature ◽  
First Line ◽  
Stroke Treatment ◽  
Oral Glucocorticoids ◽  
First Line Treatment

As the neurointervention field grows, a new side effect emerges. Delayed leukoencephalopathy (DL) is believed to be an inflammatory or allergic reaction to polymer material that is shed from catheters during endovascular procedures. We present four cases of DL after aneurysm treatment in two patients, endovascular stroke treatment and diagnostic arteriography. We present our diagnostic process, including biopsy results in two patients, our anti-inflammatory treatment and outcomes together with a review of the literature. In our series, prognosis was variable with ongoing seizures in two patients. Our literature review reveals that asymptomatic shedding of polymer material is common, occurring in a third of endovascular stroke procedures, whereas symptomatic DL occurs in <0.5% of therapeutic neuroendovascular procedures. Clinicians should be aware of this rare complication, and oral glucocorticoids seem to be a reasonable first-line treatment strategy.

Outcomes of a 320-degree intrastromal corneal ring segment implantation for keratoconus: Results of a 6-month follow-up

2018 ◽  
Vol 30 (1) ◽  
pp. 139-146 ◽  
Author(s):  
Guilherme Andrade do Nascimento Rocha ◽  
Paulo Ferrara de Almeida Cunha ◽  
Leonardo Torquetti Costa ◽  
Luciene Barbosa de Sousa
Keyword(s):  
Visual Acuity ◽  
Spherical Equivalent ◽  
Distance Visual Acuity ◽  
Uncorrected Distance Visual Acuity ◽  
Intrastromal Corneal Ring ◽  
Corrected Distance Visual Acuity ◽  
Ring Segment ◽  
The Mean ◽  
Corneal Tomography

Importance: This study shows that a newer long-arc length intrastromal corneal ring segment is efficient and safe for keratoconus treatment. Background: To evaluate visual, tomographic results and complications of a 320-degree intrastromal corneal ring segment implantation with the femtosecond laser for keratoconus treatment. Design: A prospective, nonrandomized, and interventional study. Participants: A total of 34 eyes of 31 patients diagnosed with keratoconus were enrolled. Methods: Patients were divided into two groups based on the strategy used for 320-degree intrastromal corneal ring segment thickness selection. In one group, this selection was based on spherical equivalent (SE group) and in the other on the mean asphericity (Q group). The uncorrected and corrected distance visual acuities, spherical equivalent, K1, K2, Km, Kmax, and mean asphericity ( Q) on corneal tomography were evaluated preoperatively and at 3 and 6 months postoperatively. For astigmatism improvement, we analyzed the corneal tomographic vectorial astigmatism change preoperatively and at 6 months postoperatively. The mean follow-up period was 6.63 ± 0.96 months. Results: The mean uncorrected distance visual acuity and corrected distance visual acuity improved with a significant spherical equivalent improvement ( p < 0.05), with no differences between the 320-degree intrastromal corneal ring segment groups. All corneal tomographic parameters improved significantly ( p < 0.05) between the preoperative and postoperative intervals, with a significant better performance when we used spherical equivalent for the 320-degree intrastromal corneal ring segment thickness selection. Finally, the mean vectorial corneal tomographic astigmatism significantly improved after 6 months, again with no differences between groups. Conclusion: This study suggests that implanting a 320-degree intrastromal corneal ring segment is a safe and effective procedure for treating patients with keratoconus. It also suggests that for thickness selection spherical equivalent is the better strategy.

scholarly journals Von hippel-lindaus disease: Report of three cases and review of the literature

1995 ◽  
Vol 53 (4) ◽  
pp. 782-788 ◽  
Author(s):  
Luiz F. Bleggi-Torres ◽  
Lúcia de Noranha ◽  
J. Fillus Neto ◽  
José E. Queiroz Telles ◽  
Luiz E. Madalozzo
Keyword(s):  
Renal Cell Carcinoma ◽  
Cell Carcinoma ◽  
Renal Cell ◽  
Clear Cell ◽  
Review Of The Literature ◽  
The Third ◽  
The Family ◽  
Cerebellar Haemangioblastoma ◽  
Atypical Meningiomas ◽  
Cns Lesions

The authors present the autopsy findings of two related patients and the biopsy findings of a thrid member of the family. The oldest member was 34 years old at death and on postmortem examination he had haemangioblastomas in the retina, cerebellum, medulla and spinal cord. Other findings were renal cell carcinoma, phaechromocytoma, cysts of kidney and pancreas, hydromyelia and atypical meningiomas. His brother died when 30 years old. The autopsy revealed haemangioblastomas of cerebellum, renal cell carcinoma and a clear cell cystadenoma of epididymus. The third patient was the daughter of the first and presented with headache and dizziness. CT-scan showed a cerebellar haemangioblastoma. Epidemiological considerations on the commonest visceral and CNS lesions and a review of current diagnostic criteria are discussed.

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