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Onisor D, Brusnic O, Mocan S, Stoian M, Avram C, Boicean A, Dobru D. Cytomegalovirus in Ulcerative Colitis: An Unwanted "Guest". Pathogens 2024; 13:650. [PMID: 39204250 PMCID: PMC11356953 DOI: 10.3390/pathogens13080650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2024] [Revised: 07/23/2024] [Accepted: 07/30/2024] [Indexed: 09/03/2024] Open
Abstract
The role of cytomegalovirus (CMV) in the flare-up of ulcerative colitis (UC) is not clearly understood. CMV can cause similar symptoms in different clinical contexts, which may be attributed to the natural evolution of the viral infection, the patient's immune status, or its association with inflammatory bowel disease (IBD). This study aims to delineate the diverse manifestations of CMV-related lesions from clinical, endoscopic, and histopathological perspectives, alongside a brief narrative review of the literature. In managing IBD patients, it is crucial to be vigilant for signs of CMV reactivation, especially before the initiation of more intensive therapies.
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Affiliation(s)
- Danusia Onisor
- Department of Internal Medicine VII, George Emil Palade University of Medicine, Pharmacy, Science and Technology of Targu Mures, Gheorghe Marinescu Street No. 38, 540139 Targu Mures, Romania; (D.O.); (D.D.)
- Gastroenterology Department, Mureș County Clinical Hospital, 540103 Targu Mures, Romania
| | - Olga Brusnic
- Department of Internal Medicine VII, George Emil Palade University of Medicine, Pharmacy, Science and Technology of Targu Mures, Gheorghe Marinescu Street No. 38, 540139 Targu Mures, Romania; (D.O.); (D.D.)
- Gastroenterology Department, Mureș County Clinical Hospital, 540103 Targu Mures, Romania
| | - Simona Mocan
- Pathology Department, Emergency County Hospital, 540136 Targu Mures, Romania;
| | - Mircea Stoian
- Department of Anesthesiology and Intensive Care, George Emil Palade University of Medicine, Pharmacy, Science and Technology of Targu Mures, 540139 Targu Mures, Romania;
| | - Calin Avram
- Department of Medical Informatics and Biostatistics, George Emil Palade University of Medicine, Pharmacy, Science and Technology of Targu Mures, Gheorghe Marinescu Street No. 38, 540139 Targu Mures, Romania
| | - Adrian Boicean
- Faculty of Medicine, Lucian Blaga University of Sibiu, 550169 Sibiu, Romania;
| | - Daniela Dobru
- Department of Internal Medicine VII, George Emil Palade University of Medicine, Pharmacy, Science and Technology of Targu Mures, Gheorghe Marinescu Street No. 38, 540139 Targu Mures, Romania; (D.O.); (D.D.)
- Gastroenterology Department, Mureș County Clinical Hospital, 540103 Targu Mures, Romania
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Maresca R, Varca S, Di Vincenzo F, Ainora ME, Mignini I, Papa A, Scaldaferri F, Gasbarrini A, Giustiniani MC, Zocco MA, Laterza L. Cytomegalovirus Infection: An Underrated Target in Inflammatory Bowel Disease Treatment. J Clin Med 2023; 13:130. [PMID: 38202138 PMCID: PMC10779749 DOI: 10.3390/jcm13010130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 12/20/2023] [Accepted: 12/22/2023] [Indexed: 01/12/2024] Open
Abstract
CMV infection is still a matter of concern in IBD patients, especially regarding the disease's relapse management. Why IBD patients, particularly those affected by ulcerative colitis, are more susceptible to CMV reactivation is not totally explained, although a weakened immune system could be the reason. Various techniques, ranging from serology to histology, can be employed to detect intestinal CMV infection; however, there is currently disagreement in the literature regarding the most effective diagnostic test. Furthermore, CMV involvement in steroid resistance has been broadly discussed, but whether CMV infection is a cause or consequence of the disease severity and, consequently, steroid refractoriness is still debated. Its potential contribution to the lack of response to advanced therapy and small molecules must be more valued and wholly explored. In this review, we look at the actual literature on CMV in IBD patients, and we suggest a pragmatic algorithm for clinical practice management of CMV infection.
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Affiliation(s)
- Rossella Maresca
- CEMAD Digestive Diseases Center, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, Università Cattolica del Sacro Cuore, Largo A. Gemelli 8, 00168 Rome, Italy; (R.M.); (S.V.); (F.D.V.); (M.E.A.); (I.M.); (A.P.); (F.S.); (A.G.); (L.L.)
- Dipartimento Universitario di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Simone Varca
- CEMAD Digestive Diseases Center, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, Università Cattolica del Sacro Cuore, Largo A. Gemelli 8, 00168 Rome, Italy; (R.M.); (S.V.); (F.D.V.); (M.E.A.); (I.M.); (A.P.); (F.S.); (A.G.); (L.L.)
- Dipartimento Universitario di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Federica Di Vincenzo
- CEMAD Digestive Diseases Center, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, Università Cattolica del Sacro Cuore, Largo A. Gemelli 8, 00168 Rome, Italy; (R.M.); (S.V.); (F.D.V.); (M.E.A.); (I.M.); (A.P.); (F.S.); (A.G.); (L.L.)
- Dipartimento Universitario di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Maria Elena Ainora
- CEMAD Digestive Diseases Center, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, Università Cattolica del Sacro Cuore, Largo A. Gemelli 8, 00168 Rome, Italy; (R.M.); (S.V.); (F.D.V.); (M.E.A.); (I.M.); (A.P.); (F.S.); (A.G.); (L.L.)
| | - Irene Mignini
- CEMAD Digestive Diseases Center, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, Università Cattolica del Sacro Cuore, Largo A. Gemelli 8, 00168 Rome, Italy; (R.M.); (S.V.); (F.D.V.); (M.E.A.); (I.M.); (A.P.); (F.S.); (A.G.); (L.L.)
| | - Alfredo Papa
- CEMAD Digestive Diseases Center, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, Università Cattolica del Sacro Cuore, Largo A. Gemelli 8, 00168 Rome, Italy; (R.M.); (S.V.); (F.D.V.); (M.E.A.); (I.M.); (A.P.); (F.S.); (A.G.); (L.L.)
- Dipartimento Universitario di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Franco Scaldaferri
- CEMAD Digestive Diseases Center, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, Università Cattolica del Sacro Cuore, Largo A. Gemelli 8, 00168 Rome, Italy; (R.M.); (S.V.); (F.D.V.); (M.E.A.); (I.M.); (A.P.); (F.S.); (A.G.); (L.L.)
- Dipartimento Universitario di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Antonio Gasbarrini
- CEMAD Digestive Diseases Center, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, Università Cattolica del Sacro Cuore, Largo A. Gemelli 8, 00168 Rome, Italy; (R.M.); (S.V.); (F.D.V.); (M.E.A.); (I.M.); (A.P.); (F.S.); (A.G.); (L.L.)
- Dipartimento Universitario di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Maria Cristina Giustiniani
- Department of Pathology, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, Largo A. Gemelli 8, 00168 Rome, Italy;
| | - Maria Assunta Zocco
- CEMAD Digestive Diseases Center, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, Università Cattolica del Sacro Cuore, Largo A. Gemelli 8, 00168 Rome, Italy; (R.M.); (S.V.); (F.D.V.); (M.E.A.); (I.M.); (A.P.); (F.S.); (A.G.); (L.L.)
- Dipartimento Universitario di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Lucrezia Laterza
- CEMAD Digestive Diseases Center, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, Università Cattolica del Sacro Cuore, Largo A. Gemelli 8, 00168 Rome, Italy; (R.M.); (S.V.); (F.D.V.); (M.E.A.); (I.M.); (A.P.); (F.S.); (A.G.); (L.L.)
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Ren K, Yong C, Wang Y, Wei H, Zhao K, He B, Cui M, Chen Y, Wang J. Cytomegalovirus Pneumonia in Inflammatory Bowel Disease: Literature Review and Clinical Recommendations. Infect Drug Resist 2023; 16:6195-6208. [PMID: 37724090 PMCID: PMC10505384 DOI: 10.2147/idr.s420244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Accepted: 08/22/2023] [Indexed: 09/20/2023] Open
Abstract
Aim The objective was to elucidate the correlation between CMVP and immunosuppressive therapy in IBD patients, we hope this review could expand on the significance of CMV as an opportunistic pathogen and the potential impact on morbidity and mortality in IBD patients. Methods Records and clinical trajectories linked to CMVP in IBD patients were extracted from the PubMed database, irrespective of language barriers. The reference lists incorporated in these studies were manually inspected. Conclusions were generated using straightforward descriptive analysis. Results In total, 18 IBD patients, including Crohn's disease (CD, 67%) and Ulcerative Colitis (UC, 33%), affected by CMVP were identified from 17 published articles. A minority of these patients (17%) exhibited active disease, whereas the majority (83%) presented with quiescent disease. Fever (100%) and dyspnea (44%) emerged as the most prevalent clinical symptoms. All the patients had undergone immunosuppressive therapy. A significant proportion, up to 89%, had received thiopurine treatment prior to the CMVP diagnosis. Interestingly, none of the patients were subjected to biological therapy. Half of the patients manifested with Hemophagocytic Lymphohistiocytosis (HLH). Almost all patients (94%) were administered antiviral treatment and a substantial 83% experienced full recovery. Immunosuppressive agents were either tapered or discontinued altogether. A subset of patients, 17%, suffered fatal outcomes. Conclusion Our findings underscore the need for heightened suspicion of CMVP in IBD patients who exhibit symptoms such as fever and dyspnea. During the COVID-19 pandemic, CMVP should be considered a potential differential diagnosis. It was observed that CMVP primarily transpires during CD remission. Azathioprine emerged as the predominant immunosuppressant linked to CMV reactivation. The prompt application of effective antiviral therapy can substantially enhance patient outcomes. CMV vaccine might serve as a viable prevention strategy.
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Affiliation(s)
- Keyu Ren
- Department of Gastroenterology, Affiliated Hospital of Qingdao University, Qingdao, Shandong, 266000, People’s Republic of China
| | - Chunming Yong
- Department of Emergency, Affiliated Hospital of Qingdao University, Qingdao, Shandong, 266000, People’s Republic of China
| | - Yanting Wang
- Department of Gastroenterology, Affiliated Hospital of Qingdao University, Qingdao, Shandong, 266000, People’s Republic of China
| | - Hongyun Wei
- Department of Gastroenterology, Affiliated Hospital of Qingdao University, Qingdao, Shandong, 266000, People’s Republic of China
| | - Kun Zhao
- Department of Gastroenterology, Affiliated Hospital of Qingdao University, Qingdao, Shandong, 266000, People’s Republic of China
| | - Baoguo He
- Department of Gastroenterology, Affiliated Hospital of Qingdao University, Qingdao, Shandong, 266000, People’s Republic of China
| | - Mingjuan Cui
- Department of Gastroenterology, Affiliated Hospital of Qingdao University, Qingdao, Shandong, 266000, People’s Republic of China
| | - Yunqing Chen
- Department of Pathology, Affiliated Hospital of Qingdao University, Qingdao, Shandong, 266000, People’s Republic of China
| | - Jin Wang
- Department of Pathology, School of Basic Medicine, Qingdao University, Qingdao, Shandong, 266000, People’s Republic of China
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Hock RA, Yousaf M, Allen JC, Heh E, Raynor M, Padilla O, Peralta DP. A Rare Case of Herpes Simplex Virus and Cytomegalovirus Dual Infection Inducing Unremitting Ulcerative Colitis. Cureus 2023; 15:e45166. [PMID: 37842466 PMCID: PMC10570757 DOI: 10.7759/cureus.45166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/13/2023] [Indexed: 10/17/2023] Open
Abstract
Ulcerative colitis (UC) is a subtype of inflammatory bowel disease that results in inflammation and ulceration in the lining of the large intestine. Patients with UC are frequently prescribed immunosuppressive medications to treat their symptoms, resulting in an increased risk of reactivation of many latent viruses, including herpes simplex virus (HSV) and cytomegalovirus (CMV). However, it is rare for a patient to present with simultaneous reactivation of both viruses. Here, we document the presentation, hospital course, and clinical findings of a UC patient with HSV and CMV dual infection. We also describe treatment strategies and prophylactic measures for managing a dual infection. This is seen through initiating valganciclovir in the outpatient setting following the diagnosis.
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Affiliation(s)
- Rivers A Hock
- Internal Medicine, Paul L. Foster School of Medicine, Texas Tech University Health Sciences Center, El Paso, USA
| | - Mohammad Yousaf
- Internal Medicine, Paul L. Foster School of Medicine, Texas Tech University Health Sciences Center, El Paso, USA
| | - Jesse C Allen
- Internal Medicine, Paul L. Foster School of Medicine, Texas Tech University Health Sciences Center, El Paso, USA
| | - Ethan Heh
- Internal Medicine, Paul L. Foster School of Medicine, Texas Tech University Health Sciences Center, El Paso, USA
| | - Mark Raynor
- Internal Medicine, Paul L. Foster School of Medicine, Texas Tech University Health Sciences Center, El Paso, USA
| | - Osvaldo Padilla
- Pathology, Paul L. Foster School of Medicine, Texas Tech University Health Sciences Center, El Paso, USA
| | - Diego P Peralta
- Infectious Diseases, Texas Tech University Health Sciences Center, El Paso, USA
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Jena A, Mishra S, Singh AK, Sekar A, Sharma V. Cytomegalovirus in ulcerative colitis: an evidence-based approach to diagnosis and treatment. Expert Rev Gastroenterol Hepatol 2022; 16:109-120. [PMID: 35057693 DOI: 10.1080/17474124.2022.2032662] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
INTRODUCTION The detection of cytomegalovirus (CMV) in the setting of inflammatory bowel disease often creates confusion whether CMV is a 'bystander' or 'disease.' AREAS COVERED This review discusses the clinical conundrum of CMV in ulcerative colitis, approach to discriminate infection from disease, and therapeutic considerations (immunosuppressive and anti-CMV treatment). CMV disease should be considered in corticosteroid refractory- dependent and thiopurine refractory disease. Endoscopy may reveal deep punched out ulcers, irregular ulcers, or cobble-stoning. The diagnosis rests on the presence and abundance of viral inclusion bodies on hematoxylin and eosin stain, positive immunohistochemistry, and/or positive tissue polymerase chain reaction. CMV disease is associated with worse outcomes including increased colectomy rates. EXPERT OPINION The timing and duration of antiviral drugs in CMV disease is debatable but depends on the load of CMV in tissue. In high-grade infection, CMV needs to be treated while increasing immunosuppression may work in the setting of low-grade infection. Ganciclovir is the drug of choice for treatment of CMV disease. Tumor necrosis factor inhibitors may be useful for treating underlying disease activity in the setting of CMV. Other emerging therapies include fecal microbiota transplantation. Randomized studies are necessary to define the best timing and duration of anti-CMV therapy.
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Affiliation(s)
- Anuraag Jena
- Department of Gastroenterology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Shubhra Mishra
- Department of Gastroenterology, AIG Hospitals, Hyderabad, India
| | - Anupam Kumar Singh
- Department of Gastroenterology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Aravind Sekar
- Department of Histopathology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Vishal Sharma
- Department of Gastroenterology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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Management of cytomegalovirus corneal endotheliitis. EYE AND VISION 2021; 8:3. [PMID: 33441165 PMCID: PMC7807491 DOI: 10.1186/s40662-020-00226-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 12/24/2020] [Indexed: 12/02/2022]
Abstract
Background Cytomegalovirus (CMV) can manifest as corneal endotheliitis in immunocompetent individuals. Early diagnosis is prudent to prevent endothelial cell loss, which could ultimately lead to corneal decompensation. CMV DNA was first detected in an eye with corneal endotheliitis in 2006; since then, clinical evidence from numerous case reports and case series have accumulated. Main text In this narrative review, we identified several drugs, including ganciclovir, valganciclovir, and their combination in oral, intravenous, intravitreal, and topical forms in different concentrations, together with the judicious use of topical steroids, have reported variable success. There has yet to be any prospective comparative study evaluating the efficacy and safety of these assorted forms of treatment; clinical evidence is based on case reports and case series. CMV endotheliitis presenting with corneal edema can masquerade as other corneal diseases and thus poses a great challenge especially in post-keratoplasty eyes. Heightened awareness is needed before and after keratoplasty to start prompt prophylaxis and treatment. Conclusion There is no consensus on the management of CMV endotheliitis. Further studies are much needed to elucidate the optimal treatment modality, regime, and duration in the treatment and prophylaxis of CMV endotheliitis.
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Abstract
Early life adversity (ELA) has been associated with inflammation and immunosenescence, as well as hyporeactivity of the HPA axis. Because the immune system and the HPA axis are tightly intertwined around the glucocorticoid receptor (GR), we examined peripheral GR functionality in the EpiPath cohort among participants who either had been exposed to ELA (separation from parents and/or institutionalization followed by adoption; n = 40) or had been reared by their biological parents (n = 72).Expression of the strict GR target genes FKBP5 and GILZ as well as total and 1F and 1H GR transcripts were similar between groups. Furthermore, there were no differences in GR sensitivity, examined by the effects of dexamethasone on IL6 production in LPS-stimulated whole blood. Although we did not find differences in methylation at the GR 1F exon or promoter region, we identified a region of the GR 1H promoter (CpG 1-9) that showed lower methylation levels in ELA.Our results suggest that peripheral GR signaling was unperturbed in our cohort and the observed immune phenotype does not appear to be secondary to an altered GR response to the perturbed HPA axis and glucocorticoid (GC) profile, although we are limited in our measures of GR activity and time points.
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Abstract
Despite multiple studies, the role of cytomegalovirus [CMV] infection in exacerbating the severity of inflammation in ulcerative colitis [UC], and its response to treatment, remain debatable. Additionally, the optimal diagnostic tests for CMV infection in the setting of UC relapse, and timing of antiviral treatment initiation, remain unclear. The challenge faced by gastroenterologists is to differentiate between an acute UC flare and true CMV colitis. It seems that the presence of CMV colitis, as defined by the presence of intranuclear or intracellular inclusion bodies on haematoxylin and eosin [H&E] staining and/or positive immunohistochemistry [IHC] assay on histology, is associated with more severe colitis. Patients with CMV infection and acute severe colitis are more resistant to treatment with corticosteroids than non-infected patients. This refractoriness to steroids is related to colonic tissue CMV viral load and number of inclusion bodies [high-grade CMV infection] which may have a pronounced effect on clinical outcomes and colectomy rates. Whereas many studies showed no effect for antiviral treatment on colectomy rates in CMV-infected UC patients, there was a significant difference in colectomy rates of patients with high-grade infection who received anti-viral therapy compared with those who did not receive treatment. It was therefore proposed that high-grade CMV disease indicates that the virus is acting as a pathogen, whereas in those with low-grade CMV disease, the severity of IBD itself is more likely to influence outcome. The different algorithms that have been put forward for the management of patients with UC and concomitant CMV infection are discussed.
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Affiliation(s)
- Fadi H Mourad
- Department of Internal Medicine, American University of Beirut Medical Centre, Beirut, Lebanon
- Gastroenterology and Liver Services, Concord Hospital, Sydney, NSW, Australia
| | - Jana G Hashash
- Department of Internal Medicine, American University of Beirut Medical Centre, Beirut, Lebanon
| | - Viraj C Kariyawasam
- Gastroenterology and Liver Services, Concord Hospital, Sydney, NSW, Australia
| | - Rupert W Leong
- Gastroenterology and Liver Services, Concord Hospital, Sydney, NSW, Australia
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Cytomegalovirus and Inflammatory Bowel Diseases (IBD) with a Special Focus on the Link with Ulcerative Colitis (UC). Microorganisms 2020; 8:microorganisms8071078. [PMID: 32698383 PMCID: PMC7409252 DOI: 10.3390/microorganisms8071078] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 07/10/2020] [Accepted: 07/12/2020] [Indexed: 12/16/2022] Open
Abstract
Cytomegalovirus (CMV) infects approximately 40% of adults in France and persists lifelong as a latent agent in different organs, including gut. A close relationship is observed between inflammation that favors viral expression and viral replication that exacerbates inflammation. In this context, CMV colitis may impact the prognosis of patients suffering from inflammatory bowel diseases (IBDs), and notably those with ulcerative colitis (UC). In UC, the mucosal inflammation and T helper cell (TH) 2 cytokines, together with immunomodulatory drugs used for controlling flare-ups, favor viral reactivation within the gut, which, in turn, increases mucosal inflammation, impairs corticoid and immunosuppressor efficacy (the probability of steroid resistance is multiplied by more than 20 in the case of CMV colitis), and enhances the risk for colectomy. This review emphasizes the virological tools that are recommended for exploring CMV colitis during inflammatory bowel diseases (IBD) and underlines the interest of using ganciclovir for treating flare-ups associated to CMV colitis in UC patients.
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Relationships between the clinical characteristics and copy numbers of DNA of cytomegalovirus determined by real-time PCR. Int Ophthalmol 2020; 40:2297-2305. [PMID: 32418075 PMCID: PMC7481159 DOI: 10.1007/s10792-020-01412-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Accepted: 05/02/2020] [Indexed: 12/19/2022]
Abstract
Purpose To determine whether there is a correlation between the clinicals characteristics including various types of keratic precipitates and the copy numbers of the DNA of cytomegalovirus (CMV) in eyes with CMV corneal endotheliitis. Methods We reviewed the medical charts of four cases of corneal endotheliitis that were CMV-positive. We have classified types of clinical phenomenon into four types: coin-shaped KPs, sectoral corneal edema with or without Khodadoust line-like KPs, mutton-fat KPs, and fine KPs and have graded their severity. We also determined the copy numbers of the DNA of CMV in the aqueous humor by real-time polymerase chain reaction before and during the treatment. We evaluated the correlation between the patterns of clinical characteristics and copy number of the DNA of CMV. Results There were clinical improvements in all eyes following topical ganciclovir in conjunction with low dose of topical steroid treatment, with or without oral valganciclovir. The clinical characteristics and the copy numbers of the DNA of CMV varied during the treatment period. The presence of coin-shaped KPs was correlated with high copy numbers (105–103 copies/ml) of the DNA of CMV. The copy numbers of the DNA of CMV with sectoral corneal edema with or without Khodadoust line-like KPs ranged from 104 to 102 copies/ml, and it was occasionally accompanied by high intraocular pressure. Mutton-fat KPs were observed inferiorly, sometimes together with coin-shaped KPs and sectoral corneal edema, or solely. The copy numbers in eyes with mutton-fat KPs varied and occasionally less than the cutoff level. Fine-pigmented KPs were observed after the resolution of the endotheliitis, and no DNA of CMV was detected in the aqueous humor. Conclusions Careful observations of the clinical characteristics such as the KPs and corneal edema might be helpful in estimating the amount of the DNA of CMV in eyes with corneal endotheliitis.
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