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עמוד בית
Fri, 03.05.24

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November 2023
Erez Magiel MD, Christopher J. Klein MD, Shahar Shelly MD

In the acute settings of generalized myasthenia gravis (MG) treatment options include plasma exchange (PLEX), intravenous immunoglobulin (IVIG), and pyridostigmines. A thymoma is associated with the disease in up to 20% of cases [1,2].

In cases where a thymoma is detected, surgical treatment to remove the tumor is recommended in certain age groups. At present, there are no clear guidelines regarding the optimal time to perform thymectomy after diagnosis of acute crisis or from the last treatment to thymectomy. Treatment is at the clinician's discretion.

January 2022
Giuliana Galassi MD, Vittorio Rispoli MD, Erika Iori MD, Alessandra Ariatti MD, and Alessandro Marchioni MD PhD

The Oxford-AstraZeneca vaccine ChAdOx1 (AZD1222, Vaxzevria) is playing a crucial role in counteracting the coronavirus disease-2019 (COVID-19) pandemic [1]. Since March 2021, reports of unexpected thrombotic events associated with thrombocytopenia and vaccination have been published [2]. To the best of our knowledge there is only one report about vaccination-associated myasthenia gravis (MG) occurring after a second dose of BNT162b2 (Pfizer-BioNTech)

October 2018
Michael Peer MD, Sharbell Azzam MD, Vladislav Gofman MD, Mark Kushnir MD, Benjamin Davidson MD and Carmel Armon MD

Background: Thymectomy is a reliable surgical method for treating patients with myasthenia gravis (MG) and benign tumors of the thymus. Despite the advantages of minimally invasive surgical approaches for resection of thymic neoplasms, there are still controversies regarding the superiority of one type of surgery over another.

Objectives: To report the results of our initial Israeli experience with robotic thymectomy in 22 patients with MG and suspected benign thymic tumors.

Methods: We retrospectively analyzed 22 patients (10 men, 12 women) who underwent robotic thymectomy by a left-sided (16) or right-sided approach (6) using the da Vinci robotic system at Assaf Harofeh Medical Center. Seven patients were diagnosed with MG before surgery and 14 had suspected benign thymic neoplasms.

Results: Average operative time was 90 minutes. There were no deaths or intraoperative complications. Postoperative complications occurred in two patients (dyspnea and pleural effusion). Median blood loss was 12.3 cc (range 5–35 cc), median hospital stay 2.9 days (range 2–5 days), and mean weight of resected thymus 32.1 grams. Seven patients had thymic hyperplasia, six a lipothymoma, one a thymic cyst. Seven each had thymomas in different stages and one had a cavernous hemangioma.

Conclusions: Robotic thymectomy is a safe, technically effective surgical method for resection of thymic neoplasms. The advantages of this technique are safety, short hospitalization period, little blood loss, and low complications. We have included this surgical procedure in our thoracic surgery residency program and recommend a learning curve program of 10 to 12 procedures during residency.

June 2015
Barak Benjamin MD, Roy Zaltzman MD PhD, Baruch Shpitz MD, Carlos R. Gordon MD DSc and Shmuel Avital MD
January 2008
E. Zifman and H. Amitai

Medical screening is not a tangible existent tool in autoimmune disorders as it is in other illnesses. Numerous attempts are made to identify individuals destined to develop an autoimmune disease, including analysis of the genetic background, which along with the immunological profile, may assist in identifying those individuals. If these efforts turn out to be successful they may lead to the possibility of proactive measures that might prevent the emergence of such disorders. This review will summarize the attempts made to pursue autoantibodies specific for the central nervous system as potential predictors of autoimmune neurological disorders.

S. Fuchs, T. Feferman, R. Meidler, T. Brenner, O. Laub and M.C. Souroujon

Backgraound: Intravenous immunoglobulin administration has been beneficially used for the treatment of a variety of autoimmune diseases including myasthenia gravis, although its mode of action and active components have not yet been fully identified.

Objectives: To isolate from IVIg[1] a disease-specific fraction involved in the therapeutic activity in myasthenia and to identify its properties and function.

Results: IVIg administration in experimental autoimmune MG[2] results in suppression of disease that is accompanied by decreased Th1 cell and B cell proliferation. Chromatography of IVIg on columns of IgG from rats with EAMG[3] or from MG patients resulted in depletion of the suppressive activity that IVIg has on rat EAMG. Moreover, the minute amounts of IgG fractions eluted from the EAMG or MG-specific columns retained the immunosuppressive activity of IVIg.

Conclusions: Our study supports the notion that the therapeutic effect of IVIg is mediated by a minor disease-specific immunoglobulin fraction that is present in IVIg and is essential for its therapeutic activity.





[1] IVIg = inravenous immunoglobulin

[2] MG = myasthenia gravis

[3] EAMG = experimental autoimmune myasthenia gravis 


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