Dataset Information

Intraoperative relaxed muscle positioning technique results in a tertiary Center for Thyroid Orbitopathy Related Strabismus.

ABSTRACT:

Background

Previous techniques resulted with low rates of successful fusion after the surgeries and high necessity of additional surgeries in the treatment of thyroid orbitopathy related strabismus. In this study, reviewing the results of our patients who had surgical correction with relaxed muscle positioning technique due to thyroid orbitopathy related strabismus to evaluate the effectiveness of the surgery was aimed.

Methods

The medical records of 8 patients who had surgical correction with intraoperative relaxed muscle positioning (IRMP) technique were studied retrospectively. The extent of strabismus was determined with prism cover test both at near and distance. The extent of recession was determined by marking the natural place of the released tendon during the primary position. The muscle then sutured to the globe at this precise point.

Results

Seven eyes (87.5%) of 8 patients had orthophoria after the surgery and they reported no diplopia in primary and reading gaze. The mean age of the patients was 51?±?8.8?years. The mean follow-up time was 32.7?±?18.5?months. Three patients had inferior rectus recession (IRR), 3 had bilateral medial rectus recession (MRR), 1 had only right MRR and 1 had combined MRR with IRR during the surgical correction of the strabismus. The mean amount of recession for IR was 7.5?±?1.34?mm and it was 6.75?±?0.95?mm for the MR muscles. The mean prism diopter before the surgery was 37.8?±?23.3 and it was 0 after surgery except only one of the patients who had >?60 prism diopter (PD) left esotropia (ET) before surgery and had 30 PD left ET after surgery (3.3?±?9.4).

Conclusion

IRMP technique is a unique option for the surgical correction of thyroid orbitopathy related strabismus. By showing a dramatic increase in the quality of life of the patients, our surgical results are promising despite limited number of patients.

SUBMITTER: Sarici AM

PROVIDER: S-EPMC6251154 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature

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Publications

Intraoperative relaxed muscle positioning technique results in a tertiary Center for Thyroid Orbitopathy Related Strabismus.

Sarici Ahmet Murat AM Mergen Burak B Oguz Velittin V Dogan Cezmi C

BMC ophthalmology 20181123 1

<h4>Background</h4>Previous techniques resulted with low rates of successful fusion after the surgeries and high necessity of additional surgeries in the treatment of thyroid orbitopathy related strabismus. In this study, reviewing the results of our patients who had surgical correction with relaxed muscle positioning technique due to thyroid orbitopathy related strabismus to evaluate the effectiveness of the surgery was aimed.<h4>Methods</h4>The medical records of 8 patients who had surgical co ...[more]

PMID: 30470210

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Project description:BackgroundFor some patients with complex ocular motility disorders, conventional strabismus surgery is insufficient. Surgery with tendon elongation allows correction of larger angles and maintains a sufficient arc of contact for rectus muscles. This study reports results for tendon elongation with bovine pericardium (Tutopatch®) in indications other than Graves' orbitopathy in which it is already widely used.MethodsWe reviewed the records of all patients who underwent surgery with Tutopatch® in our institution. Angles of squint and head postures were analyzed preoperatively, on the first postoperative day, and in the long term (median 9 weeks after the operation). Patients with Graves' orbitopathy were excluded.ResultsFrom 2011 to 2018, the procedures on 58 eyes of 54 patients (35 females, median age 35 years (3-75)) met the inclusion criteria. Horizontal rectus muscle surgery (53 eyes) was conducted on patients with residual strabismus (13), Duane's retraction syndrome with eso- (type I: 16)/exodeviation (type II: 2, type III: 1), 6th (7)/3rd nerve palsy (7), Möbius syndrome (2), congenital fibrosis of the extraocular muscles type 3A (CFEOM3A, TUBB3 mutation) (4), and orbital apex syndrome (1). Vertical rectus muscle surgery (5 eyes) was conducted on patients with myasthenia (1), vertical tropia after orbital floor fracture (1), CFEOM1 (2), and Parry-Romberg syndrome (1). 42 eyes had prior eye muscle surgery (1-5 procedures, median 1). Out of 45 patients with postoperative long-term data, 43 showed an angle reduction. Fifty-one percent had an angle of 10Δ (prism diopter) or less, one had a significant over-effect, and 10 had revision surgery. For the heterogeneous group of residual eso- and exotropias, the median absolute horizontal angle was reduced from 35Δ (16 to 45Δ) to 9Δ (0 to 40Δ), for Duane's retraction syndrome from 27.5Δ (9 to 40Δ) to 7Δ (0 to 40Δ), and for sixth and third nerve palsies from 43Δ (20 to 75Δ) to 18Δ (4 to 40Δ). For 3 patients with vertical rectus muscle surgery, the median absolute vertical angle was reduced from 30Δ (20 to 45Δ) to 4Δ (1 to 22Δ). The motility range was shifted in the direction contrary to the elongated muscle in all subgroups. A considerable reduction of the excursion into the field of action of the elongated muscle had to be registered.ConclusionsStrabismus surgery with bovine pericardium introduces new surgical options for complicated revisions and for rare and complex oculomotor dysfunctions. Yet, it has to be recognized that this type of surgery aiming at maximum effects, despite preservation or restitution of the arc of contact, leads to reduction of the excursion into the field of action of the elongated muscle. Furthermore, dose finding can be difficult depending on the underlying pathology and more than one intervention might be necessary for optimal results.

Project description:BackgroundThe prevalence of thyroid cancer is increasing worldwide. No previous data are available on the prevalence of thyroid cancer in Yemen. We performed this study to determine the prevalence of thyroid cancer among patients with thyroid nodules in Yemen.MethodsA retrospective chart review was performed for 550 patients with thyroid nodules who underwent fine needle aspiration and/or thyroid surgery at a private endocrine clinic and at an endocrine clinic in a tertiary hospital in Yemen over a 3 -year period from October 2016-2019. The prevalence of thyroid cancer; the sonographic findings, Bethesda classification, age, sex, thyroid stimulating hormone (TSH) levels of the patients; and the nodule size and number were reviewed.ResultsA total of 550 charts were reviewed [501 females (91.1%) and 49 males (8.9%)]. The thyroid cancer prevalence among the patients was 13.8% (CI?=?10.9-16.7), and the mean age of the patients was 38.5?years (SD?=?12.2). The TSH level and the rate of cancer were significantly related (P?=?0.01), but no significant difference in the prevalence of thyroid cancer was found between females (13.4%) and males (18.4%) (P?=?0.334). When correlating the rate of cancer with the ultrasound guided fine needle aspiration (UG-FNA) result, those with Bethesda system category III and IV, V and VI had malignancy rates of 20.8, 27.2, 52.4 and 69.2%, respectively. Thyroid nodules highly suspicious for malignancy on ultrasound had a 70% cancer diagnosis rate. The most common thyroid cancer was papillary cancer (71%), followed by follicular cancer (23.7%). Among those undergoing surgery, 44.2% had thyroid cancer, and 5.2% had a premalignant diagnosis.ConclusionThyroid cancer has a higher prevalence in Yemen than in other middle eastern countries. Our study also reports a higher rate of follicular thyroid cancer than that in other published data, which has to be confirmed by further studies. The malignancy and premalignant diagnosis rate was ~ 50% in our patients who underwent surgery. Many centers in Yemen still do not perform FNA before thyroid surgery. It is important that other centers in the country start emphasizing the need for FNA before surgery. This will decrease the number of unnecessary surgeries and associated complications.

Dataset Information

Intraoperative relaxed muscle positioning technique results in a tertiary Center for Thyroid Orbitopathy Related Strabismus.

Background

Methods

Results

Conclusion

Publications

Intraoperative relaxed muscle positioning technique results in a tertiary Center for Thyroid Orbitopathy Related Strabismus.

Similar Datasets

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