bluuebunny/crossref_metadata_2025 huggingface dataset:
Phytochemical Comparison of Medicinal Cannabis Extracts and Study of Their CYP-Mediated Interactions with Coumarinic Oral Anticoagulants
Authors: Treyer Andrea , Reinhardt Jakob K. , Eigenmann Daniela Elisabeth , Oufir Mouhssin , Hamburger Matthias
Published: October 2023

Introduction: Treatment with cannabis extracts for a variety of diseases has gained popularity. However, differences in herb-drug interaction potential of extracts from different plant sources are poorly understood. In this study, we provide a characterization of cannabis extracts prepared from four cannabis chemotypes and an in vitro assessment of their Cytochrome P450 (CYP)-mediated herb-drug interaction profiles. Methods: Plant extracts were either commercially obtained or prepared using ethanol as solvent, followed by overnight decarboxylation in a reflux condenser system. The extracts were characterized for their cannabinoid content using NMR and HPLC-PDA-ELSD-ESIMS. CYP inhibition studies with the cannabis extracts and pure cannabinoids (tetrahydrocannabinol [THC] and cannabidiol [CBD]) were performed using pooled, mixed gender human liver microsomes. Tolbutamide and testosterone were used as specific substrates to assess the inhibitory potential of the extracts on CYP2C9 and CYP3A4, and the coumarinic oral anticoagulants warfarin, phenprocoumon, and acenocoumarol were studied as model compounds since in vivo herb-drug interactions have previously been reported for this compound class. Results: In accordance with the plant chemotypes, two extracts were rich in THC and CBD (at different proportions); one extract contained mostly CBD and the other mostly cannabigerol (CBG). Residual amounts of the corresponding acids were found in all extracts. The extracts with a single major cannabinoid (CBD or CBG) inhibited CYP2C9- and CYP3A4-mediated metabolism stronger than the extracts containing both major cannabinoids (THC and CBD). The inhibition of CYP3A4 and CYP2C9 by the extract containing mostly CBD was comparable to their inhibition by pure CBD. In contrast, the inhibitory potency of extracts containing both THC and CBD did not correspond to the combined inhibitory potency of pure THC and CBD. Although being structural analogs, the three coumarin derivatives displayed major differences in their herb-drug interaction profiles with the cannabis extracts and the pure cannabinoids. Conclusion: Despite the fact that cannabinoids are the major components in ethanolic, decarboxylated cannabis extracts, it is difficult to foresee their herb-drug interaction profiles. Our in vitro data and the literature-based evidence on in vivo interactions indicate that cannabis extracts should be used cautiously when co-administered with drugs exhibiting a narrow therapeutic window, such as coumarinic anticoagulants, regardless of the cannabis chemotype used for extract preparation.
Cryotherapy after Topical Interferon Alpha 2b to Treat Conjunctival Primary Acquired Melanosis
Authors: Huerva Valentín , Vilardell Felip , Cid-Bertomeu Pau
Published: October 2023

When primary acquired melanosis (PAM) with atypia affects the tarsal conjunctiva, a radical surgery can be mutilating, requiring reconstructive surgery of the eyelid. Topical chemotherapy associated to local cryotherapy may be an alternative. A 64-year-old Caucasian female presented with diffuse PAM of the right eye involving the inferior tarsal conjunctiva, fornix, and inferotemporal bulbar conjunctiva. Histological study showed a PAM with atypia (C-MIN 5). Given the extent of the lesion and its location, a wide mutilating excision was ruled out. Topical interferon alpha 2b (IFN-α2b) treatment (1,000,000 IU/mL, 4 times a day) was administered during 10 weeks. However, the regression was very slow. Then local cryotherapy was proposed (8 s at −80°C per application) to the entire pigmented lesion. This afforded progressive depigmentation, which was completed 2 months later. No recurrence of the lesion has been noted during 3 years of follow-up. The combination of the two procedures reduces IFN-α2b eyedrop administration time, enhancing patient compliance. The combination may eradicate the tumor without compromising ocular cosmesis.
Bilateral Serous Detachments with Roth Spots after COVID-19 Vaccination: A Case Report
Authors: Jalink Maarten B. , Geraerds Thesingh Ricardo
Published: October 2023

With the rise of novel types of vaccines during the pandemic, new side effects are encountered. The aim of this paper is to describe an atypical case of bilateral serous detachments with Roth spots after COVID-19 vaccination using an mRNA vaccine. A healthy, 38-year-old male presented with a central scotoma and metamorphopsia in his left eye, 4 days after his second COVID-19 booster shot. Bilateral serous detachments were seen, with one area showing Roth spots. Patient’s symptoms resolved spontaneously without any treatment. Although serous detachment after COVID-19 vaccination has been described in the context of other diseases, such as Vogt-Koyanagi-Harada disease, central serous chorioretinopathy, and posterior scleritis, this is the first report of serous detachments with Roth spots as an isolated entity.
Enhancement of the Third Cranial Nerve due to Microvascular Ischemia: Case Report
Authors: Kritzinger Justin , Micieli Jonathan A.
Published: October 2023

Third nerve palsy (3NP) commonly results from a microvascular ischemic insult. Typically, computed tomography or magnetic resonance angiography is performed to rule out a posterior communicating artery aneurysm. If this is normal and the pupil is spared, patients are often observed with the expectation of spontaneous improvement within 3 months. Oculomotor nerve enhancement on MRI with contrast in the context of microvascular 3NP is not well recognized. Here, we report third nerve enhancement in a case of a 67-year-old woman with diabetes and other vascular risk factors who presented with left eye ptosis and a limitation of extraocular eye movements consistent with 3NP. She underwent an extensive inflammatory workup that was negative and the diagnosis of a microvascular 3NP was made. A spontaneous recovery was achieved within 3 months, and she did not receive any treatment. She remained clinically well, although increased T2 signal in the oculomotor nerve persisted after 10 months. While the exact mechanism remains unknown, it is likely that microvascular ischemic insults lead to intrinsic changes of the third nerve that may result in enhancement and persistent T2 signal. Additional workup for inflammatory causes of 3NP may not be required when enhancement of the oculomotor nerve is seen in the right clinical context. Further study is required to understand why enhancement is a rarely reported finding in patients with microvascular ischemic 3NP.
Concentric Reversible Visual Field Loss, Nyctalopia, and Dyschromatopsia with Ezetimibe Therapy
Authors: Xu Zhengchao , Preda Veronica , Jabbour James
Published: October 2023

This is a case of ezetimibe-induced concentric field loss, dyschromatopsia, and nyctalopia in a patient with no prior history of retinal dystrophy or drug hypersensitivity. A 55-year-old Caucasian woman presents with a 1-year history of increasing concentric visual field loss, nyctalopia, photophobia, and colour vision impairment. These symptoms correlated with the commencement of ezetimibe therapy 10 mg daily for hypercholesterolaemia. She demonstrated repeatable bilateral visual field constriction on 30-2 Humphrey visual filed testing and colour vision impairment on Ishihara plates (OD: 1/17, OS: 1/17). Biochemical and radiological screening for carcinoma-associated retinopathy was unremarkable. A working diagnosis of drug-induced rod-cone dysfunction was made. Her visual symptoms and field changes completely resolved 3 months after cessation of ezetimibe therapy. This case suggests that ezetimibe is a potential cause of rod-cone dysfunction and should be considered as a differential in patients with new unexplained visual symptoms.
Undesirable High Astigmatism after Penetrating Keratoplasty in Pseudophakia Corrected with an Add-On Toric Intraocular Lens
Authors: Cid-Bertomeu Pau , Vilaltella Magí , Huerva Valentín
Published: October 2023

The purpose of the present case is to report the visual outcomes of a pseudophakic patient with high post-penetrating keratoplasty astigmatism treated with implantation of toric AddOn® intraocular lens (IOL) in the sulcus. A 79-year-old man with a ophthalmologic history of pseudoexfoliative glaucoma and Fuchs endothelial dystrophy had a graft failure after Descemet’s stripping automated endothelial keratoplasty procedure on his right eye. Consequently, a penetrating keratoplasty was performed, and a high corneal astigmatism of −9.8 D to 140° resulted in that eye after selective suture removal. A secondary AddOn® toric IOL customized for the patient with a manufacturer-calculated power of +11.0 D was implanted to 50° in sulcus of the right eye. Subjective refraction was used for IOL calculation. Final refraction was +1.0 D of sphere and −2.0 D of cylinder power to 105°, with spherical equivalent of 0.0 D. Best corrected visual acuity was logMAR 0.1 (20/25, 0.8 decimal) 1 year after the IOL implant. Our case report demonstrates that the toric AddOn® secondary IOL can be effective and safe in correcting residual refractive error of high regular astigmatism after keratoplasty in pseudophakic eyes.
Preservation of Vision after Early Recognition of Anterior Ischemic Optic Neuropathy in a Patient with Sepsis
Authors: Vosoughi Amir R. , Micieli Jonathan A.
Published: October 2023

Non-arteritic ischemic optic neuropathy (NAION) can rarely occur in the setting of sudden vascular compromise, especially in patients with a “disk-at-risk” appearance. Anemia and hypotension are believed to be the main precipitators of shock-induced NAION. Early recognition of this phenomenon can prevent further visual loss and result in partial visual recovery. We here present a 56-year-old patient who developed NAION characterized by optic disc edema in both eyes and visual loss in the left eye secondary to hypotension in the setting of septic shock. He received aggressive blood pressure management (stopping all his anti-hypertensives, hydration, and midrodrine) which resulted in stabilization of vision in the right eye and likely prevented further visual loss in the left eye.
Orbital Gas after 25-Gauge Pars Plana Vitrectomy with Incorrect Gas Mixture
Authors: Ashkenazy Noy , Danzig Carl J. , Rong Andrew J. , Read Sarah P. , Maeng Michelle M. , Flynn Jr. Harry W. , Albini Thomas A.
Published: October 2023

We present 2 cases of sutureless 25-gauge pars plana vitrectomy and fluid-gas exchange, in which incorrect gas concentrations likely led to elevated intraocular pressures and retrobulbar gas. Combined removal of orbital gas with anterior orbitotomy and pars plana vitrectomy was performed in the first case to address expanding intraocular and retrobulbar gas resulting from a suspected error in gas dilution. Vitreous and orbital gas removal by needling was effective in the second case. In patients with elevated intraocular pressure and orbital gas accumulation after vitrectomy, combined intraocular and orbital decompressions were effective in optimizing clinical outcomes. There is no consensus regarding the best management of orbital gas after vitrectomy. We propose that a multidisciplinary technique should be considered, when available.
Novel Surgical Treatment of an Intraretinal Juxtapapillary Hemangioblastoma Using Intraocular Diathermy Forceps: A Case Report
Authors: van Overdam Koen A. , Hajjaj Anass , Smid Lisette M. , Kiliç Emine , de Jong Jan H.
Published: October 2023

The surgical treatment of intraretinal juxtapapillary retinal hemangioblastomas (JRHs) was previously contraindicated because of the significant risk of collateral damage to the macula and optic nerve. This case report discusses the effectiveness and safety of a novel surgical technique using intraocular bipolar diathermy forceps to coagulate feeder and draining blood vessels of an intraretinal JRH. The patient suffered from bilateral retinal hemangioblastomas with loss of visual function in one eye and the development of an intraretinal JRH in the other eye. Despite intensive treatment with intravitreal bevacizumab and subconjunctival triamcinolone acetonide, growth of the intraretinal JRH continued, macular exudation worsened, and visual acuity decreased. Surgical treatment was undertaken in which, first, the feeder and draining vessels of the JRH were identified by comparing the retinal imaging of the JRH with the imaging before the emergence of the JRH 4 years earlier. Then, retinal incisions were made above the blood vessels and parallel to the nerve fibers during a pars plana vitrectomy. Lastly, these vessels were lifted above the retinal surface and coagulated using intraocular diathermy forceps. Postoperatively, macular edema reduced, and visual acuity increased and remained stable for about 6 months. Using intraocular diathermy forceps, this case report demonstrates effective and safe intraretinal JRH blood vessel coagulation above the retinal surface. This novel surgical approach was able to delay the deterioration of visual acuity due to tumor growth and exudation in this patient. This suggests that coagulation with intraocular diathermy forceps can be considered an additional surgical treatment option for JRHs, especially those with an intraretinal growth pattern.
Optic Nerve Sheath Fenestration as Adjuvant Treatment for Severe Pseudotumor Cerebri Syndrome Induced by All-Trans Retinoic Acid
Authors: Hokazono Kenzo , Cunha Leonardo Provetti , Preti Rony C. , Cabral Zacharias Leandro , Ribeiro Monteiro Mario Luiz
Published: October 2023

All-trans retinoic acid (ATRA) is a vitamin A derivative which can increase intracranial pressure, causing visual loss and papilledema. Those patients should be treated similarly to others patients with idiopathic intracranial hypertension. We described a case of a 32-year-old woman presenting with severe visual loss and intracranial hypertension induced by ATRA for acute promyelocytic leukemia, which was treated clinically and with optic nerve sheath fenestration. Patients receiving ATRA therapy should be monitored to neurological and ophthalmic signs and symptoms of intracranial hypertension.
Cardiometabolic Guidelines: Cardiovascular Risk Assessment and Management in Patients with Dysglycemia
Authors: Hassanein Mohamed , Sabbour Hani , Al Awadi Fatheya , Abusnana Salah , Afandi Bachar , Al Kaabi Juma , Bashier Alaaeldin , Cosentino Francesco , El Tamimi Hassan , Farghali Mohammed , Farooqi M. Hamed , Hafidh Khadija , Heshmat Hussein , Hijazi Rabih , Jabbar Abdul , Kenz Sami , Nour Seema Elkhider , Shehab Abdullah , Shook Jeff , Suliman Mohamed , Zaky Hosam , Almahmeed Wael
Published: October 2023

Background: Cardiovascular diseases (CVDs) are the major cause of mortality and disability in patients with type 2 diabetes mellitus (T2DM). The increased risk of major cardiovascular (CV) events in patients with T2DM causes an estimated 12-year reduction in life expectancy. Despite their heightened CV risks, most T2DM patients do not meet treatment targets for multiple CV risk factors. Moreover, in the UAE, the incidence of cardiometabolic diseases is exceedingly high, impacting young patients and leading to a high burden of premature CV events. Summary: We propose this comprehensive cardiometabolic evaluation to address both glycemic control and early diagnosis of CV complications as well as early implementation of multifactorial intensive therapies that are evidence and guideline based. Widespread utilization and implementation of the guidelines in primary diabetic care, coupled with early referral to a CV or the relevant specialists, will result in a significant reduction of CV events and CV hospitalization in the UAE population. Hence, the Emirates Diabetes and Endocrine Society with the Emirates Cardiac Society collaborated for the first time to develop these recommendations. These will aid in the early identification of CV risk factors in persons with prediabetes and diabetes, as well as their effective assessment and management. These guidelines are aimed not just at primary care physicians but also specialists, perhaps leading to a more collaborative and multidisciplinary approach to the prevention, diagnosis, and treatment of patients with diabetes and CVD. Key Message: The establishment of combined cardiometabolic clinics providing comprehensive assessment and management in every major cardiology and diabetology center, particularly in patients who have already had a CV event, where the combined involvement of a cardiologist and a diabetologist in an intensive multifactorial outpatient program is urgently required to prevent recurrent CV events. In addition, establishing a National Cardiometabolic Registry is an essential element of this recommendation.
Lymphocytic Panhypophysitis Mimicking Glaucoma: Case Report
Authors: Keys Phillip Howard , Hunt Patrick J , Anozie Clement , Cayenne Samir , Davila-Siliezar Pamela , Laylani Noor , Lee Andrew G
Published: October 2023

Lymphocytic hypophysitis (LH) is a primary inflammatory disorder of the pituitary gland and infundibulum that commonly manifests in both mass effect and endocrinologic symptoms. Although the exact pathophysiology remains unclear, it has been increasingly linked to an autoimmune process. Complications arise by two separate mechanisms. Inflammation in the sella can lead to headaches and visual field defects. Pituitary inflammation and, chronically, fibrosis interfere with the gland’s hormone-secreting capacity, often resulting in various endocrinopathies such as polyuria, polydipsia, amenorrhea, and others. While final histologic classification requires pathologic evaluation, diagnosis can often be made clinically with appropriate imaging. Treatment often consists of conservative management but can also include glucocorticoids or surgical resection. We present a case of biopsy-proven LH involving the entire pituitary, dubbed lymphocytic panhypophysitis (LPH) that was misdiagnosed for years as glaucoma due to the lack of endocrinopathy as well as delay in magnetic resonance imaging. After imaging revealed the sellar mass, the patient responded symptomatically to surgical resection and glucocorticoid treatment. LPH may present without endocrinologic symptoms and therefore mimic alternate diagnoses such as glaucoma. Clinicians should be suspicious of a diagnosis of glaucoma in the setting of a temporal field defect and lack of response to traditional therapy. A personal or family history of autoimmune disease in such patients should prompt further imaging and investigation. Therefore, endocrinopathy is supportive but not present in every case of LPH.
Intermittent Orbital Pain due to Hemodynamic Collapse of an Orbital Varix: A Case Report
Authors: Kaneko Naoki , Rootman Daniel B. , Takayanagi Ariel , Goldberg Robert , Duckwiler Gary R. , Tateshima Satoshi
Published: October 2023

Orbital varices typically present with symptoms related to dilation or thrombosis. We describe a rare presentation of an orbital varix with pain caused by hemodynamic collapse of the varix. A woman in the third decade presented with position-dependent orbital pain and enophthalmos. She was found to have an intraorbital varix and a separate pterygoid varix. The patient underwent endovascular treatment of the pterygoid varix using coils and sclerosing agents which altered the venous outflow from the orbital varix. The patient had immediate resolution of symptoms after the procedure. Our findings suggest that extraorbital venous outflow abnormalities may be the cause of symptoms in selected cases of orbital varices. By understanding the venous structures on cerebral angiography and treating the extraorbital component, orbital intervention may be avoided, reducing the risk of complications.
Gastric Conduit Cancer following Ivor-Lewis Esophagectomy for Esophageal Adenocarcinoma: A Case Report and Literature Review
Authors: Khorobrykh Tatyana , Ivashov Ivan , Spartak Alexey , Babayan Juliet , Andriyanov Andrey , Pavlov Pavel
Published: October 2023

The incidence of gastric cancer associated with esophageal cancer is notably high. In recent years, there has been an increase in patients with gastric conduit cancers due to early detection and radical treatment of esophageal cancer, leading to prolonged survival of the patients. Metachronous gastric cancer following esophagectomy sometimes can pose a clinical challenge for surgeons, while gastric tube reconstruction is a well-established procedure accompanying esophagectomy, treating gastric cancer within the gastric tube can be difficult in contrast. Surgical treatment of gastric tube cancers is often complex and life-threatening. Early detection of gastric tube cancer is crucial for improving prognosis as it allows for less invasive surgical interventions. However, no specific guidelines for detecting gastric tube cancer have been established. In this report, we present a case of gastric tube cancer in a patient that had Ivor-Lewis surgery 20 years ago for preinvasive adenocarcinoma of the thoracic esophagus against the background of Barrett’s esophagus. Recommendations for earlier and more accurate diagnosis and treatment of this pathology are discussed.
Hypertensive Retinopathy as a Presenting Sign of Pheochromocytoma with Malignant Hypertension: A Child Case
Authors: Billia Filippo , Palmieri Nadia , Maccari Andrea , Menna Feliciana , Consigli Andrea
Published: October 2023

A 13-year-old was admitted to our clinic complaining about a vision loss of over 2 weeks. Bilateral optic disc edema, peripapillary flame-shaped hemorrhages, macular star pattern exudates, and cotton wool spots were found in fundoscopic examination. The OCT exam showed bilaterally serous retinal detachments in sub-foveal region with intraretinal exudates. A pediatric examination found a high systemic hypertension of 230/140 mm Hg, and laboratory tests revealed increased levels of plasmatic and urinary catecholamines. An abdominal MRI showed a left suprarenal pheochromocytoma and the child underwent an adrenalectomy urgently. Informed patient consent was obtained from legal guardians to publish clinical images. Malignant hypertension (MHT) as a result of a pheochromocytoma is an extremely rare condition in childhood. MHT crisis represents a potential life-threatening event and an immediate treatment can prevent a multi-organ failure, including the eyes. An early diagnosis of MHT by fundus examination can lead to a completely favorable ophthalmological evolution and entirely functional recovery.
Diabetic Ketoacidosis in COVID-19 Patients: Clinical Characteristics and Outcomes – A Retrospective Study in a Single Tertiary Care Hospital, Dubai, United Arab Emirates
Authors: AL Sughaiyer Hana , AL Haj Abeer , Abdulrahman Samia Murad Ibrahim
Published: October 2023

Introduction: We aimed to evaluate the clinical characteristics of patients presenting with DKA and COVID-19 infection and describe the clinical outcomes compared to those without COVID-19. Methods: A retrospective study in a single tertiary care hospital in Dubai was conducted on patients admitted between 1st March 2020 and 30th July 2020 with a diagnosis of DKA with and without COVID-19 infection. Results: A total of 32 patients with DKA were identified. Eleven patients had a positive COVID-19 test and 21 patients were negative. The majority of DKA patients were males (84.4%). In the COVID-19 group, the mean age was 41.3 years old. Seven patients had preexisting diabetes (63.7%) and 4 patients (36.4%) had newly diagnosed diabetes. COVID-19 patients had a longer median length of hospital stay (7 days vs. 4 days; p = 0.278), shorter duration of DKA (16 h vs. 24 h; p = 0.043), and higher mortality (18.2% vs. 0%; p = 0.047). Conclusion: COVID-19 infection can precipitate DKA in patients with either newly diagnosed or preexisting diabetes. DKA patients with COVID-19 infection had higher mortality compared to those without COVID-19. This should urge physicians to be more vigilant in assessing the glycemic status of patients presenting with COVID-19 infection.
Mobilization and Hematopoietic Stem Cell Collection in Poor Mobilizing Patients with Lymphoma: Final Results of the German OPTIMOB Study
Authors: Kriegsmann Katharina , Bittrich Max , Sauer Sandra , Tietze-Stolley Carola , Movassaghi Kamran , Grube Matthias , Vucinic Vladan , Wehler Daniela , Burchert Andreas , Schmidt-Hieber Martin , Rank Andreas , Dürk Heinz A. , Metzner Bernd , Kimmich Christoph , Hentrich Marcus , Kunz Christian , Hartmann Frank , Khandanpour Cyrus , de Wit Maike , Holtick Udo , Kiehl Michael , Stoltefuß Andrea , Kiani Alexander , Naumann Ralph , Scholz Christian W. , Tischler Hans-Joachim , Görner Martin , Brand Franziska , Ehmer Martin , Kröger Nicolaus
Published: October 2023

Introduction: Successful mobilization and collection of peripheral hematopoietic stem cells (HSCs) are necessary for lymphoma patients eligible for myeloablative chemotherapy with subsequent autologous stem cell transplantation (ASCT). Albeit G-CSF alone or combined with chemotherapy is well-established methods for HSC mobilization, up to 40% of the patients fail to mobilize (poor mobilizer, PM). Plerixafor (PLX) is commonly used in PM patients resulting in increased migration of HSCs into peripheral blood and thus improves the collection outcome. Methods: The prospective, multicenter, open-label, non-interventional OPTIMOB study assessed mobilization and collection parameter of patients with lymphoma or multiple myeloma to get deep insights in the treatment of those patients in clinical routine focusing on PM patients. PM was defined as follows: (1) no achievement of ≥20 CD34+ progenitor cells/µL before first apheresis, (2) PLX administration at any time point during the observational period, (3) reduction of the initially planned CD34+ progenitor cell yield as necessity due to failed mobilization or HSC collection, and (4) no performance of apheresis due to low CD34+ progenitor level. Primary objective of the study was to assess mobilization success by the proportion of PM patients achieving >2 × 106 CD34+ progenitor cells/kg body weight on the first day of apheresis. Here, the data of the lymphoma cohort are presented. Results: Out of 238 patients with lymphoma documented in the study, 32% were classified as PM. 87% of them received PLX. Demographic data revealed no obvious differences between PM and good mobilizing (GM) patients. All patients were treated highly individualized prior to mobilization. Majority of all PM patients were able to undergo apheresis (95%) and reached their individual requested CD34+ progenitor cell target (72%). 57% of the PM patients achieved >2.0 × 106 CD34+ progenitor cells/kg body weight on day 1 of apheresis and nearby 70% of them underwent ASCT. Median time to engraftment was similar in PM and GM patients of the lymphoma cohort. Conclusions: Majority of PM patients with lymphoma were successfully mobilized and underwent ASCT. Most of them received PLX during the study.
Semi-Autologous Corneal Transplantation with Simultaneous Bilateral Surgery: A Case Report
Authors: Kounatidou Nefeli E. , Kopsini Dimitra , Gibbons Allister , Crane Ashley M. , Palioura Sotiria , Alfonso Eduardo C.
Published: October 2023

The present report describes a case of semi-autologous corneal transplantation with bilateral surgery using two operating microscopes simultaneously. An 86-year-old man with history of six prior failed penetrating keratoplasties in his right eye presented with decreased vision. His other eye was deeply amblyopic but had a clear 30-year-old Castroviejo-square graft with an endothelial cell count of 803 cells/mm2. A semi-autologous graft was performed from the left eye to the right. Surgery was performed simultaneously on both eyes by two different surgeons using a standard ophthalmic operating microscope as well as a second ENT microscope. Upon trephination of the right failed corneal graft, vitreous opacities were noted and sent for culture. The semi-autologous tissue was directly transferred from the left eye to the right without any storage in preservation media to avoid endothelial cell loss. The semi-autologous graft remained clear in the immediate postoperative period. However, the vitreous cultures grew coagulase-negative Staphylococcus. Despite all efforts, the patient eventually developed a retinal detachment and vision in the right eye decreased to light perception. Autologous penetrating keratoplasty is an option for patients with loss of corneal function in a potentially seeing eye and a clear cornea in a contralateral eye with poor visual potential due to non-corneal disease. This case is unique in that part of the autologous penetrating keratoplasty had an old square graft in the center and corneal transplant surgery was done simultaneously in both eyes. It also highlights chronic indolent endophthalmitis as a potential cause of multiple graft failures.
Subperiosteal Orbital Hematoma: A Rare Clinical Manifestation of Sickle Cell Disease - A Case Report
Authors: Hanna Najib-Georges , Musleh Asma , Khan Hasan , Chaudry Emaan , Lahoud Corinne
Published: October 2023

Sickle cell disease (SCD), an inherited vaso-occlusive disorder, results in recurrent painful episodes and a variety of serious systemic complications that can lead to severe disabilities and even death. Here, we report a case of a 19-year-old African American patient with homozygous sickle cell trait who presented with right upper lid edema and ptosis, 3 days after his admission to the hospital following a sickle cell crisis. Initially, mistaken as a superinfection in the context of his disease, a diagnosis of orbital abscess was made. Intravenous antibiotics and a proper treatment plan were set accordingly. Only after extensive clinical and radiological examinations, it turned out to be an acute subperiosteal orbital hematoma, a rare clinical manifestation of SCD. The aim of our case report was to highlight the difference in orbital presentation between osteomyelitis and subperiosteal hematoma, as well as spreading awareness among medical professionals and especially ophthalmologists for this rare presentation of orbital wall infarction, as the initial differential diagnosis of SCD patients with ocular involvement.
Isolated Kaposi’s Sarcoma of the Bulbar Conjunctiva as an Initial Manifestation of AIDS: A Case Report
Authors: Alsawadi Hend , Al-Somali Abdulaziz , Najmi Hatim , Al-Mubarak Fatimah
Published: October 2023

Kaposi’s sarcoma (KS) is a malignant vascular endothelium-cell-derived tumor caused by human herpesvirus 8. It is one of the most common tumors among human immunodeficiency virus (HIV)-infected patients; however, isolated KS is rarely reported as the initial presentation. This study describes a rare case in which isolated KS of the bulbar conjunctiva was the first presenting symptom leading to the diagnosis of HIV/acquired immunodeficiency syndrome (AIDS) in a 39-year-old man. The patient, who had no prior medical history, presented to the ophthalmology clinic with an isolated large, dark-reddish mass in the left bulbar conjunctiva and subconjunctival hemorrhage. The mass was first identified 6 months prior and had continued to grow since then. KS was confirmed based on the analysis of the incisional biopsy sample, subsequently prompting an HIV test, which was positive. This report highlights the recognition of KS as a relevant ocular complication and potential initial manifestation of AIDS. Additionally, KS should be considered in the differential diagnosis of any vascular lesion, even when present at uncommon sites.
Three-Year Follow-Up of Results of Intraocular Lens Fixation in Patients with Retinitis Pigmentosa
Authors: Miura Gen , Baba Takayuki
Published: October 2023

This is a retrospective, consecutive, noncomparative case series of 6 eyes of 5 retinitis pigmentosa (RP) patients who had undergone pars plana vitrectomy (PPV) and intraocular lens (IOL) implantation. The aim of this case series was to report the long-term outcomes of PPV with IOL implantation in patients with RP). The surgical procedures, visual function, refractive error, corneal endothelial cell density, intraocular pressure, and retinal morphology were evaluated before and 3 years after the surgery. Six eyes of 5 RP patients that had undergone PPV and IOL implantation with or without suturing for lens dislocation were studied. The visual acuity was maintained or improved at 3 years after surgery in all 6 eyes. No intraoperative complications occurred in any of the cases. The mean deviation of the Humphrey Field Analyzer 10–2 program and the retinal morphology evaluated by optical coherence tomography did not show any abnormal changes before and after surgery. In two eyes, the postoperative refractive error was more myopic than the attempted refractive error. In conclusion, PPV with IOL implantation can be performed safely in RP patients, and the long-term visual acuity can be maintained.
Documented Reperfusion of the Retina on Fluorescein Angiography after Administration of Intravenous Prostaglandin E1 for Central Retinal Artery Occlusion: A Case Report
Authors: Chacko J. Anthony , Broyles Heather V. , Chacko Joseph G. , Uwaydat Sami H.
Published: October 2023

Central retinal artery occlusion (CRAO) can result in devastating permanent vision loss. Presently, there is no evidence-based treatment for CRAO that is widely accepted. In the literature, multiple studies propose intravenous (IV) prostaglandin E1 (IV PGE1) as a potential treatment option for patients with CRAO. We illustrate 2 cases of CRAO successfully treated with IV PGE1. In both cases, our patients with vascular risk factors were diagnosed with CRAO of the left eye. They were started on twice daily IV 40 μg PGE1 in 100 mL normal saline, with each dose administered over 3 h. In the first case, we documented reperfusion of the retina on fluorescein angiography after administration of IV PGE1. In the second case, our patient improved from no light perception visual acuity (VA) to count fingers VA within 48 h of treatment with IV PGE1. Our study highlights the vasodilatory effect of IV PGE1. Due to its mechanism of action and safety profile, it should be considered a potential treatment option for CRAO. Further randomized controlled trials are necessary to determine the overall therapeutic effect of IV PGE1 for CRAO.
Majocchi’s Granuloma – The Great Mimicker: A Case Report
Authors: Drivenes Jakob Lillemoen , Ramsing Mette , Bygum Anette
Published: October 2023

Fungal infections can be challenging to diagnose, but doctors of every specialty may encounter this issue. They can be mistaken for other common dermatoses such as eczema or psoriasis and inadvertently be treated with topical corticosteroids or calcineurin inhibitors. This may lead to tinea incognita, a term used to describe a fungal infection with an altered clinical appearance, which may confuse the clinician even further. This case report presents a 54-year-old previously healthy man with a 4-month history of a painful and pruritic rash in the genitoinguinal region. The patient’s general practitioner had unsuccessfully attempted to treat the rash with topical terbinafine, econazole-triamcinolone, and betamethasone-fusidic acid, in addition to peroral dicloxacillin capsules. On examination, there were multiple red-bluish nodules and pustules coalescing into infiltrating erythematous plaques on both thighs and in the pubic region. Fungal cultures were negative, but the clinical features together with the history of prolonged use of combined topical steroids and antifungals raised suspicion of a deep fungal infection. Histopathological skin examination revealed deep suppurative and granulomatous folliculitis with ruptured hair follicles which was consistent with a diagnosis of Majocchi’s granuloma. Treatment with itraconazole capsules was initiated, and after a 16-week course of systemic antifungal therapy, the rash resolved. In conclusion, our case report presents a case of Majocchi’s granuloma, which is a great mimicker, especially for non-dermatologists. It is therefore important that the diagnosis is considered as a differential diagnosis, even though a patient has previously been treated with a topical antifungal.
Supplementary Implantation of 1stQ AddOn® Sulcus-Fixated Intraocular Lens to Treat Negative Dysphotopsia: A Retrospective Case Series
Authors: Van Slycken Maxim , Sallet Guy , Derveaux Thierry
Published: October 2023

Negative dysphotopsia (ND) refers to the subjective perception of an arc-shaped darkness or shadow in the temporal field of vision. This condition occurs after uneventful cataract surgery with an in-the-bag intraocular lens (IOL). To address this issue, supplementary implantation of conventional three-piece IOLs in the sulcus or dedicated supplementary Rayner Sulcoflex® IOL have been used successfully. The aim of this retrospective case series was to assess the effectiveness of resolving ND using a supplementary 1stQ AddOn® (Medicontur) IOL. The 1stQ AddOn® has a different design and optic size compared to the Rayner Sulcoflex®. Patients experiencing severe and persistent ND underwent supplementary implantation of the 1stQ AddOn® IOL. The primary outcome measure was the resolution of dysphotopsia. Nine eyes received the 1stQ AddOn® IOL, with complete symptom resolution observed in 6 eyes, partial improvement in 1 eye, and no change in 2 eyes. This indicates that supplementary implantation of the 1stQ AddOn® IOL can effectively and safely treat ND, performing equally well as the Rayner Sulcoflex®. The positive impact of sulcus-fixated supplementary IOLs seems to be related to the interaction between the central optic and the pupil margin.
Blepharokeratoconjunctivitis Presumably Caused by Paederus fuscipes, a Beetle: A Case Report
Authors: Ono Takashi , Nejima Ryohei , Kinoshita Katsuhito , Mori Yosai , Ohtani Shinichiro , Miyai Takashi , Iwasaki Takuya , Miyata Kazunori
Published: October 2023

Toxicity of Paederus species to eyes has scarcely been reported. This report presents a case of chemical blepharokeratoconjunctivitis with delayed re-epithelialization caused by Paederus fuscipes in a patient with dry eye after laser-assisted in situ keratomileusis (LASIK). A 47-year-old woman who had undergone LASIK for myopia 10 years prior experienced visual disturbance and pain in her left eye after being hit by a P. fuscipes insect in her eye 1 day prior to evaluation. At the initial presentation, dermatitis around the patient’s left eye, eyelid oedema, conjunctival chemosis, corneal epithelial defects, and a best corrected visual acuity (BCVA) of 20/200 were noted. No gram-positive/negative bacteria or indication of cellulitis/elevated inflammation was detected. Administration of topical steroids (betamethasone) and antibiotics (topical: cefmenoxime and levofloxacin; intravenous: ceftriaxone) improved the non-infectious chemical blepharokeratoconjunctivitis; however, the large corneal epithelial defect remained for 10 days. Switching from betamethasone to a preservative-free form facilitated re-epithelialization, and the patient’s BCVA improved to 20/16 after 2 months. Ophthalmologists should consider the toxicity of the Paederus species on the ocular surface and eyelid.
Berlin’s Edema with Atypical Optical Coherence Tomography Findings: A Case Report
Authors: Nikkhah Homayoun , Karrabi Narges , Yazdanjou Farangis
Published: October 2023

Berlin’s edema is an acute traumatic maculopathy following ocular blunt trauma, with the major site of injury is photoreceptor outer segments and retinal pigment epithelium (RPE). Optical coherence tomography (OCT) is a useful tool to diagnose and follow microstructural changes in Berlin’s edema. In this report, we present an atypical case of Berlin’s edema that resembled Vogt-Koyanagi-Harada disease. OCT demonstrated multiple neurosensory detachments and giant cystic changes of the outer retina. Fluorescein angiography showed no dye leakage or vascular alterations. The patient was treated with a short period of topical and systemic corticosteroids, and she improved significantly within a few weeks.
PHACE(S) Syndrome with Ocular Involvements and No Periocular Hemangioma
Authors: Kalambe Aisha Sheriff , Sugihara Kazunobu , Yamamoto Kei , Kawano Sakiko , Oyama Chigusa , Taketani Takeshi , Hayashida Kenji , Tanito Masaki
Published: October 2023

PHACE(S) syndrome is a neurocutaneous disorder with a hallmark finding of an infantile facial hemangioma (IFH) >5 cm. Eye examination of patients with PHACE(S) syndrome with no IFH at periorbital region is reported to be of low yield. We report a unique case of the syndrome with ocular manifestations without periorbital IFH or systemic findings. A 3-week-old female infant with right periauricular IFH >5 cm, extending to the neck and cheek and lower lip IFH was presented. Examination revealed pseudoptosis due to microphthalmia with esotropia and hypertropia. Both corneas were clear with diameters of 5 mm and 10 mm, right eye (RE) and left eye (LE), respectively. There was a posterior polar cataract with a poor view of the fundus RE. Ocular B-scan and magnetic resonance imaging (MRI) findings were suggestive of a dysmorphic globe, vitreous hemorrhage, spherophakia and persistent fetal vasculature RE and normal findings LE. Clinical evaluation, MRI, and MR angiography revealed no other systemic abnormalities. Subsequent follow-up visits revealed progressive clouding of the cornea with neovascularization and the development of phthisis bulbi RE at which point an ocular prosthesis was placed. The IFH was managed with dye laser and with oral propranolol. At 1 year, the patient has remained stable with no development of new local or systemic anomalies, regression of the periauricular and lip IFH, and normal development of the orbital structure RE with an ocular prosthesis in situ. Ocular involvement in patients with PHACE(S) syndrome may be present without periorbital IFH. Regardless of the location of the IFH and the presence or absence of a periocular component, it is recommended that they receive a full initial ophthalmological assessment.
Proadi-SUS: análise dos recursos financeiros nos triênios 2009–2011, 2012–2014 e 2015–2017
Authors: Santos Julia Amorim , Palhares Luciana , Mendes Aquilas
Published: October 2023

OBJETIVO: Caracterizar os recursos de isenção fiscal usufruídos no Programa de Apoio ao Desenvolvimento Institucional do Sistema Único de Saúde (Proadi-SUS) nos triênios 2009–2011, 2012–2014, 2015–2017, considerando o volume total dos recursos atrelado ao debate dos gastos tributários em saúde e a constituição de uma “nova modalidade de filantropia” no setor. MÉTODOS: Para compreender o setor filantrópico, analisaram-se os gastos tributários no período de 2001 e 2017. Para avaliar os recursos utilizados no programa, foram examinados os valores dos projetos e das áreas de atuação. RESULTADOS: Foi constatado um crescimento real dos valores dos gastos tributários gerais e dos gastos tributários referentes ao setor filantrópico. Constatou-se, também, um aumento real dos recursos do programa. Foram realizados 407 projetos, totalizando um valor de R$ 3,4 bilhões para o período. Ao se analisar o valor médio dos projetos, explicita-se ampliação dos valores para todos os hospitais inseridos no programa, com exceção de uma das instituições. Nos triênios 2009–2011 e 2012–2014, a área de atuação com maior número de projetos e mais recursos foi a “Área de técnicas e operação de gestão em serviços de saúde”. Já no triênio 2015–2017, o setor que contou com mais investimentos e maior número de projetos desenvolvidos foi o de “Capacitação de recursos humanos”. CONCLUSÃO: O programa caracteriza outro patamar na relação do setor público com o setor privado/empresariado da saúde, atrelado aos princípios da nova gestão pública. Faz-se necessária, como desdobramento para futuras investigações, uma caracterização qualitativa dos projetos desenvolvidos e do impacto das ações diante das demandas do setor público.
The potential impact of PM2.5 on the covid-19 crisis in the Brazilian Amazon region
Authors: Gonçalves Karen dos Santos , Cirino Glauber G. , Costa Marcelo Oliveira da , Couto Lucas de Oliveira do , Tortelote Giovane G. , Hacon Sandra de Souza
Published: October 2023

OBJECTIVE: This study aims to assess covid-19 morbidity, mortality, and severity from 2020 to 2021 in five Brazilian Amazon states with the highest records of wildfires. METHODS: A distributed lag non-linear model was applied to estimate the potential exposure risk association with particulate matter smaller than 2.5-μm in diameter (PM2.5). Daily mean temperature, relative humidity, percentual of community mobility, number of hospital beds, days of the week, and holidays were considered in the final models for controlling the confounding factors. RESULTS: The states of Para, Mato Grosso, and Amazonas have reported the highest values of overall cases, deaths, and severe cases of covid-19. The worrying growth in the percentual rates in 2020/2021 for the incidence, severity, and mortality were highlighted in Rondônia and Mato Grosso. The growth in 2020/2021 in the estimations of PM2.5 concentrations was higher in Mato Grosso, with an increase of 24.4%, followed by Rondônia (14.9%). CONCLUSION: This study establishes an association between wildfire-generated PM2.5 and increasing covid-19 incidence, mortality, and severity within the studied area. The findings showed that the risk of covid-19 morbidity and mortality is nearly two times higher among individuals exposed to high concentrations of PM2.5. The attributable fraction to PM2.5 in the studied area represents an important role in the risk associated with covid-19 in the Brazilian Amazon region.