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Pimple P, Sawant A, Nair S, Sawarkar SP. Current Insights into Targeting Strategies for the Effective Therapy of Diseases of the Posterior Eye Segment. Crit Rev Ther Drug Carrier Syst 2024; 41:1-50. [PMID: 37938189 DOI: 10.1615/critrevtherdrugcarriersyst.2023044057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2023]
Abstract
The eye is one a unique sophisticated human sense organ with a complex anatomical structure. It is encased by variety of protective barriers as responsible for vision. There has been a paradigm shift in the prevalence of several major vision threatening ocular conditions with enhanced reliance on computer-based technologies in our workaday life and work-from-home modalities although aging, pollution, injury, harmful chemicals, lifestyle changes will always remain the root cause. Treating posterior eye diseases is a challenge faced by clinicians worldwide. The clinical use of conventional drug delivery systems for posterior eye targeting is restricted by the ocular barriers. Indeed, for overcoming various ocular barriers for efficient delivery of the therapeutic moiety and prolonged therapeutic effect requires prudent and target-specific approaches. Therefore, for efficient drug delivery to the posterior ocular segment, advancements in the development of sustained release and nanotechnology-based ocular drug delivery systems have gained immense importance. Therapeutic efficacy and patient compliance are of paramount importance in clinical translation of these investigative drug delivery systems. This review provides an insight into the various strategies employed for improving the treatment efficacies of the posterior eye diseases. Various drug delivery systems such as systemic and intraocular injections, implants have demonstrated promising outcomes, along with that they have also exhibited side-effects, limitations and strategies employed to overcome them are discussed in this review. The application of artificial intelligence-based technologies along with an appreciation of disease, delivery systems, and patient-specific outcomes will likely enable more effective therapy for targeting the posterior eye segment.
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Affiliation(s)
- Prachi Pimple
- Department of Pharmaceutics, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, University of Mumbai, V.L. Mehta Road, Vile Parle (West), Mumbai 400 056, India
| | - Apurva Sawant
- Department of Pharmaceutics, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, University of Mumbai, V.L. Mehta Road, Vile Parle (West), Mumbai 400 056, India
| | - Sujit Nair
- Department of Pharmaceutics, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, University of Mumbai, V.L. Mehta Road, Vile Parle (West), Mumbai 400 056, India
| | - Sujata P Sawarkar
- Department of Pharmaceutics, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, University of Mumbai, V.L. Mehta Road, Vile Parle (West), Mumbai 400 056, India
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Das T, Joseph J, Simunovic MP, Grzybowski A, Chen KJ, Dave VP, Sharma S, Staropoli P, Flynn H. Consensus and controversies in the science of endophthalmitis management: Basic research and clinical perspectives. Prog Retin Eye Res 2023; 97:101218. [PMID: 37838286 DOI: 10.1016/j.preteyeres.2023.101218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 09/17/2023] [Accepted: 09/25/2023] [Indexed: 10/16/2023]
Abstract
Infectious endophthalmitis is a severe intraocular infection caused by bacteria, or less commonly by fungi. It can occur after penetrating eye procedures, trauma, or the spread of infection from contiguous structures or via emboli from distant organs. Because of the time-critical nature of the treatment, endophthalmitis is treated with the clinical diagnosis and modified by the microbiological report of the intraocular contents. The current strategy for managing endophthalmitis relies on pre-clinical literature, case series, and one large multi-center randomized clinical trial on post-cataract surgery endophthalmitis. Culture-susceptibility of the microorganisms from undiluted vitreous guides the definitive treatment in non-responsive cases. Strategies to reduce the incidence of endophthalmitis after penetrating eye procedures have been developed concurrently with refined means of treatment. Despite these advances, outcomes remain poor for many patients. Although consensus articles have been published on managing endophthalmitis, treatment patterns vary, and controversies remain. These include (1) the use of newer methods for early and precise microbiological diagnosis; (2) the choice of intravitreal antibiotics; (3) the need for systemic therapy; (4) early and complete vitrectomy. Here, we review the current consensus and address controversies in diagnosing and managing endophthalmitis. This review is intended to familiarize physicians and ophthalmologists with different aspects of endophthalmitis management to make informed decisions.
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Affiliation(s)
- Taraprasad Das
- Anant Bajaj Retina Institute, Srimati Kanuri Santhamma Centre for Vitreoretinal Disease, L V, Prasad Eye Institute, Hyderabad, India.
| | - Joveeta Joseph
- Jhaveri Microbiology Center, L V Prasad Eye Institute, Hyderabad, India.
| | - Matthew P Simunovic
- Save Sight Institute, University of Sydney, NSW, 2006, Australia; Sydney Eye Hospital, 8 Macquarie St., Sydney, NSW, 2000, Australia.
| | - Andrzej Grzybowski
- Institute for Research in Ophthalmology, Foundation for Ophthalmology Development, Poznan, Poland.
| | - Kuan-Jen Chen
- Department of Ophthalmology, Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, Taoyuan, Taiwan.
| | - Vivek Pravin Dave
- Anant Bajaj Retina Institute, Srimati Kanuri Santhamma Centre for Vitreoretinal Disease, L V Prasad Eye Institute, Hyderabad, India.
| | - Savitri Sharma
- Jhaveri Microbiology Center, L V Prasad Eye Institute, Hyderabad, India.
| | - Patrick Staropoli
- Anant Bajaj Retina Institute, Srimati Kanuri Santhamma Centre for Vitreoretinal Disease, L V Prasad Eye Institute, Hyderabad, India.
| | - Harry Flynn
- Bascom Palmer Eye Institute, Miami, FL, USA.
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Zhang WF, Zhao XY, Chen H, Meng LH, Chen YX. Endogenous Endophthalmitis at a Tertiary Referral Center in China: A Retrospective Study Over Three Decades. Ocul Immunol Inflamm 2023:1-10. [PMID: 37094073 DOI: 10.1080/09273948.2023.2198001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2023]
Abstract
PURPOSE To investigate the etiology, pathogens, treatment, and prognosis of endogenous endophthalmitis (EE). METHODS Patients diagnosed with EE over three decades at Peking Union Medical College Hospital were retrospectively reviewed and analyzed. RESULTS A total of 97 eyes from 81 patients were included. Diabetes was the most common predisposing medical condition (34.6%). Klebsiella pneumoniae (31.3%) and Candida albicans (32.8%) were the most common pathogens. Liver abscess (20.6%) was the predominant cause EE due to liver abscess had a worse initial visual acuity (P < 0.05). Patients who initially underwent pars plana vitrectomy (PPV)+silicone oil tamponade underwent fewer total treatments (P < 0.05). In the past 10 years, the proportion of Gram-positive cocci, Gram-negative bacilli, and Candida showed an upward trend. Over the past 15 years, EE after liver abscess and immunosuppression has increased, while EE from genitourinary systems has decreased. CONCLUSION EE was a devastating intraocular disease with a poor visual prognosis. The initial condition and prognosis of EE after liver abscess were the worst. PPV+silicone oil tamponade as an initial treatment may reduce additional therapy.
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Affiliation(s)
- Wen-Fei Zhang
- Department of Ophthalmology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
- Key Laboratory of Ocular Fundus Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Xin-Yu Zhao
- Department of Ophthalmology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
- Key Laboratory of Ocular Fundus Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Huan Chen
- Department of Ophthalmology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
- Key Laboratory of Ocular Fundus Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Li-Hui Meng
- Department of Ophthalmology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
- Key Laboratory of Ocular Fundus Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - You-Xin Chen
- Department of Ophthalmology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
- Key Laboratory of Ocular Fundus Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
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Chen KJ, Chen YP, Chen YH, Liu L, Wang NK, Chao AN, Wu WC, Hwang YS, Chou HD, Kang EYC, Chen YT, Sun MH, Lai CC. Infection Sources and Klebsiella pneumoniae Antibiotic Susceptibilities in Endogenous Klebsiella Endophthalmitis. Antibiotics (Basel) 2022; 11:866. [PMID: 35884120 PMCID: PMC9311537 DOI: 10.3390/antibiotics11070866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Revised: 06/19/2022] [Accepted: 06/25/2022] [Indexed: 12/10/2022] Open
Abstract
Endogenous endophthalmitis is an uncommon intraocular infection with potentially devastating consequences on vision. Klebsiella pneumoniae is highly prevalent in East Asian countries, with an increasing incidence recently worldwide. This retrospective study investigates infection sources and antibiotic susceptibilities of K. pneumoniae in patients with endogenous K. pneumoniae endophthalmitis (EKE) in Northern Taiwan. One hundred and fifty-seven patients with EKE were reviewed between January 1996 and April 2019. Pyogenic liver abscess (120/157, 76.4%) was the most common infection source, followed by pneumonia (13, 8.3%), urinary tract infection (7, 4.5%), and intravenous drug use (4, 2.5%). Bilateral involvement was identified in 12.1% (19/157) of patients, especially in patients with pyogenic liver abscess (16/120, 13.3%), pneumonia (2/13, 15.4%), and urinary tract infection (1/7, 14.3%). The antibiotic susceptibility rates were 98.1%, 92.5%, 97.5%, 96.8%, 100%, 99.3%, and 100% for amikacin, cefuroxime, ceftazidime, ceftriaxone, carbapenems, ciprofloxacin, and levofloxacin, respectively. Four extended-spectrum β-lactamase-producing multidrug-resistant (MDR) K. pneumoniae isolates were identified. In conclusion, pyogenic liver abscess was the major infection source in EKE. In addition, K. pneumoniae was still highly susceptible to ceftazidime and amikacin, and the MDR K. pneumoniae isolates were not common in EKE.
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Affiliation(s)
- Kuan-Jen Chen
- Department of Ophthalmology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan; (Y.-P.C.); (Y.-H.C.); (L.L.); (A.-N.C.); (W.-C.W.); (Y.-S.H.); (H.-D.C.); (E.Y.-C.K.); (Y.-T.C.); (M.-H.S.); (C.-C.L.)
- College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Yen-Po Chen
- Department of Ophthalmology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan; (Y.-P.C.); (Y.-H.C.); (L.L.); (A.-N.C.); (W.-C.W.); (Y.-S.H.); (H.-D.C.); (E.Y.-C.K.); (Y.-T.C.); (M.-H.S.); (C.-C.L.)
- College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
- Department of Ophthalmology, Tucheng Municipal Hospital, Tucheng, New Taipei 236, Taiwan
| | - Yi-Hsing Chen
- Department of Ophthalmology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan; (Y.-P.C.); (Y.-H.C.); (L.L.); (A.-N.C.); (W.-C.W.); (Y.-S.H.); (H.-D.C.); (E.Y.-C.K.); (Y.-T.C.); (M.-H.S.); (C.-C.L.)
- College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Laura Liu
- Department of Ophthalmology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan; (Y.-P.C.); (Y.-H.C.); (L.L.); (A.-N.C.); (W.-C.W.); (Y.-S.H.); (H.-D.C.); (E.Y.-C.K.); (Y.-T.C.); (M.-H.S.); (C.-C.L.)
- College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Nan-Kai Wang
- Department of Ophthalmology, Edward S. Harkness Eye Institute, Columbia University, New York, NY 10032, USA;
| | - An-Ning Chao
- Department of Ophthalmology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan; (Y.-P.C.); (Y.-H.C.); (L.L.); (A.-N.C.); (W.-C.W.); (Y.-S.H.); (H.-D.C.); (E.Y.-C.K.); (Y.-T.C.); (M.-H.S.); (C.-C.L.)
- College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Wei-Chi Wu
- Department of Ophthalmology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan; (Y.-P.C.); (Y.-H.C.); (L.L.); (A.-N.C.); (W.-C.W.); (Y.-S.H.); (H.-D.C.); (E.Y.-C.K.); (Y.-T.C.); (M.-H.S.); (C.-C.L.)
- College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Yih-Shiou Hwang
- Department of Ophthalmology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan; (Y.-P.C.); (Y.-H.C.); (L.L.); (A.-N.C.); (W.-C.W.); (Y.-S.H.); (H.-D.C.); (E.Y.-C.K.); (Y.-T.C.); (M.-H.S.); (C.-C.L.)
- College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Hung-Da Chou
- Department of Ophthalmology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan; (Y.-P.C.); (Y.-H.C.); (L.L.); (A.-N.C.); (W.-C.W.); (Y.-S.H.); (H.-D.C.); (E.Y.-C.K.); (Y.-T.C.); (M.-H.S.); (C.-C.L.)
- College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Eugene Yu-Chuan Kang
- Department of Ophthalmology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan; (Y.-P.C.); (Y.-H.C.); (L.L.); (A.-N.C.); (W.-C.W.); (Y.-S.H.); (H.-D.C.); (E.Y.-C.K.); (Y.-T.C.); (M.-H.S.); (C.-C.L.)
- College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Yen-Ting Chen
- Department of Ophthalmology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan; (Y.-P.C.); (Y.-H.C.); (L.L.); (A.-N.C.); (W.-C.W.); (Y.-S.H.); (H.-D.C.); (E.Y.-C.K.); (Y.-T.C.); (M.-H.S.); (C.-C.L.)
| | - Ming-Hui Sun
- Department of Ophthalmology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan; (Y.-P.C.); (Y.-H.C.); (L.L.); (A.-N.C.); (W.-C.W.); (Y.-S.H.); (H.-D.C.); (E.Y.-C.K.); (Y.-T.C.); (M.-H.S.); (C.-C.L.)
- College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Chi-Chun Lai
- Department of Ophthalmology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan; (Y.-P.C.); (Y.-H.C.); (L.L.); (A.-N.C.); (W.-C.W.); (Y.-S.H.); (H.-D.C.); (E.Y.-C.K.); (Y.-T.C.); (M.-H.S.); (C.-C.L.)
- College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
- Department of Ophthalmology, Chang Gung Memorial Hospital, Keelung 204, Taiwan
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Susceptibility of bacterial endophthalmitis isolates to vancomycin, ceftazidime, and amikacin. Sci Rep 2021; 11:15878. [PMID: 34354181 PMCID: PMC8342408 DOI: 10.1038/s41598-021-95458-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 07/27/2021] [Indexed: 11/08/2022] Open
Abstract
Bacterial endophthalmitis is a rare intraocular infection, and prompt administration of intravitreal antibiotics is crucial for preventing severe vision loss. The retrospective study is to investigate the in vitro susceptibility to the antibiotics vancomycin, amikacin, and ceftazidime of bacterial endophthalmitis isolates in specimens at a tertiary referral center from January 1996 to April 2019 in Taiwan. Overall, 450 (49.9%) isolates were Gram positive, 447 (49.6%) were Gram negative, and 4 (0.4%) were Gram variable. In Gram-positive isolates, coagulase-negative staphylococci were the most commonly cultured bacteria (158, 35.1%), followed by Streptococci (100, 22.2%), Enterococci (75, 16.7%), and Staphylococcus aureus (70, 15.6%). In Gram-negative isolates, they were Klebsiella pneumoniae (166, 37.1%) and Pseudomonas aeruginosa (131, 29.3%). All Gram-positive organisms were susceptible to vancomycin, with the exception of one Enterococcus faecium isolate (1/450, 0.2%). Of the Gram-negative isolates, 96.9% and 93.7% were susceptible to ceftazidime and amikacin, respectively. Nine isolates (9/447, 2.0%) were multidrug-resistant Gram-negative bacteria, comprising K. pneumoniae (4/164, 2.4%), Acinetobacter baumannii (2/3, 67%), and Stenotrophomonas maltophilia (3/18, 17%). In conclusion, in vitro susceptibility testing revealed that vancomycin remains the suitable antibiotic treatment for Gram-positive endophthalmitis. Ceftazidime and amikacin provide approximately the same degree of Gram-negative coverage. Multidrug-resistant bacterial endophthalmitis was uncommon.
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Yang G, Huang X, Jiang S, Xu Z. Endogenous Endophthalmitis Caused by Klebsiella pneumoniae: A Ten-Year Retrospective Study in Western China. Ophthalmic Res 2020; 63:507-516. [PMID: 31940653 DOI: 10.1159/000505928] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 01/12/2020] [Indexed: 02/05/2023]
Abstract
OBJECTIVES The aim of this study was to analyse the clinical features, microbiology results, management and outcomes of patients with endogenous endophthalmitis caused by Klebsiella pneumoniae in western China. METHODS A retrospective review of medical records of 10 eyes in 10 subjects diagnosed with endogenous K. pneumoniae endophthalmitis from January 2008 to December 2018 was undertaken. RESULTS The top 3 predisposing medical conditions included diabetes mellitus (50%), malignancy (20%) and cardiac stent implantation (10%). Extraocular infective foci were mainly found in the liver (40%), lungs (20%) and kidneys (10%). The positive culture rate was 85.71% (6/7) in vitreous samples, 83.33% (5/6) in blood samples and 100% (4/4) in body fluid samples. Only 20% of the patients, who had good initial visual acuity (VA) better than hand movement (HM), achieved a final VA better than 1.0 (log MAR). The mortality rate was 10%. CONCLUSIONS Though the prognosis of endogenous K. pneumoniae endophthalmitis is often poor, patients with an initial VA better than HM may have a good prognosis under comprehensive treatments, including vitrectomy, systemic sensitive antibiotic injection and drainage of the primary infection loci.
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Affiliation(s)
- Guoyuan Yang
- Department of Ophthalmology, West China Hospital, Sichuan University, Chengdu, China
| | - Xi Huang
- Department of Ophthalmology, West China Hospital, Sichuan University, Chengdu, China
| | - Shanming Jiang
- Department of Ophthalmology, West China Hospital, Sichuan University, Chengdu, China
| | - Zhuping Xu
- Department of Ophthalmology, West China Hospital, Sichuan University, Chengdu, China,
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Cho H, Shin YU, Siegel NH, Yu HG, Sobrin L, Patel A, Durand ML, Miller JW, Husain D. Endogenous Endophthalmitis in the American and Korean Population: An 8-year Retrospective Study. Ocul Immunol Inflamm 2016; 26:496-503. [PMID: 27459423 DOI: 10.1080/09273948.2016.1195000] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
PURPOSE To study the clinical features of endogenous endophthalmitis (EE) in sample patient populations from the USA and South Korea over an 8-year period. METHODS We reviewed data from 128 eyes of 60 American and 48 Korean patients diagnosed with EE and compared their clinical characteristics. RESULTS Fungemia and liver abscess were the most common extraocular infection sources among American (26.7%) and Korean patients (33.3%), respectively. Klebsiella pneumoniae and Candida species were the most common pathogens of EE in the Korean and the American patients, respectively. Endophthalmitis caused by fungi had a better visual prognosis than that caused by bacteria (p = 0.001). Vitrectomy was beneficial for eyes with EE due to virulent bacteria presenting with worse than counting finger vision. CONCLUSIONS The predisposing conditions and responsible organisms for EE vary in different regions of the world. The visual prognosis was strongly influenced by the underlying pathogen.
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Affiliation(s)
- Heeyoon Cho
- a Department of Ophthalmology, Massachusetts Eye and Ear Infirmary , Harvard Medical School , Boston , Massachusetts , USA
- b Department of Ophthalmology , Hanyang University Medical College , Seoul , Republic of Korea
| | - Yong Un Shin
- b Department of Ophthalmology , Hanyang University Medical College , Seoul , Republic of Korea
| | - Nicole H Siegel
- c Department of Ophthalmology , Boston University School of Medicine , Boston , Massachusetts , USA
| | - Hyeong Gon Yu
- d Department of Ophthalmology , Seoul National University College of Medicine , Seoul , Republic of Korea
| | - Lucia Sobrin
- a Department of Ophthalmology, Massachusetts Eye and Ear Infirmary , Harvard Medical School , Boston , Massachusetts , USA
| | - Achal Patel
- c Department of Ophthalmology , Boston University School of Medicine , Boston , Massachusetts , USA
| | - Marlene L Durand
- a Department of Ophthalmology, Massachusetts Eye and Ear Infirmary , Harvard Medical School , Boston , Massachusetts , USA
- e Infectious Disease Unit, Department of Medicine , Massachusetts General Hospital, Harvard Medical School , Boston , Massachusetts , USA
| | - Joan W Miller
- a Department of Ophthalmology, Massachusetts Eye and Ear Infirmary , Harvard Medical School , Boston , Massachusetts , USA
| | - Deeba Husain
- a Department of Ophthalmology, Massachusetts Eye and Ear Infirmary , Harvard Medical School , Boston , Massachusetts , USA
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Chen SC, Lee YY, Chen YH, Lin HS, Wu TT, Sheu SJ. Klebsiella pneumoniae Infection Leads to a Poor Visual Outcome in Endogenous Endophthalmitis: A 12-year Experience in Southern Taiwan. Ocul Immunol Inflamm 2016; 25:870-877. [PMID: 27438458 DOI: 10.1080/09273948.2016.1193616] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
PURPOSE To compare the characteristics, visual outcome, and prognostic factors of patients with endogenous endophthalmitis and to determine the association of endophthalmitis with Klebsiella pneumoniae infection. METHODS We retrospectively analyzed records of patients diagnosed with endogenous endophthalmitis from January 2002 to August 2013. RESULTS A total of 86 patients were diagnosed with endogenous endophthalmitis; 48 patients were infected with K. pneumoniae, 28 patients were infected with other pathogens, and 10 were culture-negative. Diabetes mellitus was more prevalent among patients infected with K. pneumoniae. Liver abscess and urinary tract infection were the leading sources of infection in patients with and without a K. pneumoniae infection, respectively. In patients with endogenous endophthalmitis, poor initial vision (p<0.001) and K. pneumoniae infection (p = 0.048) were significantly associated with a poor visual outcome. CONCLUSIONS Poor initial vision and K. pneumoniae infection were significantly associated with poorer visual outcome for patients with endogenous endophthalmitis.
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Affiliation(s)
- Shih-Chou Chen
- a Department of Ophthalmology , Kaohsiung Veterans General Hospital , Kaohsiung , Taiwan
| | - Ying-Yen Lee
- a Department of Ophthalmology , Kaohsiung Veterans General Hospital , Kaohsiung , Taiwan
| | - Ya-Hsin Chen
- a Department of Ophthalmology , Kaohsiung Veterans General Hospital , Kaohsiung , Taiwan
| | - Huey-Shyan Lin
- b Program of Health-Business Administration , Fooyin University , Kaohsiung , Taiwan
| | - Tsung-Tien Wu
- a Department of Ophthalmology , Kaohsiung Veterans General Hospital , Kaohsiung , Taiwan.,c School of Medicine , National Yang-Ming University , Taipei , Taiwan
| | - Shwu-Jiuan Sheu
- a Department of Ophthalmology , Kaohsiung Veterans General Hospital , Kaohsiung , Taiwan.,c School of Medicine , National Yang-Ming University , Taipei , Taiwan
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Current Perspectives of Prophylaxis and Management of Acute Infective Endophthalmitis. Adv Ther 2016; 33:727-46. [PMID: 26935830 DOI: 10.1007/s12325-016-0307-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Indexed: 12/23/2022]
Abstract
Endophthalmitis is an intraocular inflammatory condition which may or may not be caused by infective agents. Noninfectious (sterile) endophthalmitis may be attributable to various causes including postoperative retained soft lens matter or toxicity following introduction of other agents into the eye. Infectious endophthalmitis is further subdivided into endogenous and exogenous. In endogenous endophthalmitis there is hematogenous spread of organisms from a distant source of infection whereas in exogenous endophthalmitis direct microbial inoculation may occur usually following ocular surgery or penetrating eye injury with or without intraocular foreign bodies. Acute infective endophthalmitis is usually exogenous induced by inoculation of pathogens following ocular surgery, open-globe injury and intravitreal injections. More infrequently the infective source is internal and septicemia spreads to the eye resulting in endogenous endophthalmitis. Several risk factors have been implicated including immunosuppression, ocular surface abnormalities, poor surgical wound construction, complicated cataract surgery with vitreous loss and certain types of intraocular lens. Comprehensive guidelines and recommendations on prophylaxis and monitoring of surgical cases have been proposed to minimize the risk of acute endophthalmitis. Early diagnosis and prompt management of infective endophthalmitis employing appropriately selected intravitreal antibiotics are essential to optimize visual outcome.
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Chen KJ, Chao AN, Chen TL, Liu L, Hwang YS, Chen YH. Risk Factors Predictive of Endogenous Endophthalmitis Among Hospitalized Patients With Hematogenous Infections in the United States. Am J Ophthalmol 2015; 160:391-2. [PMID: 26187877 DOI: 10.1016/j.ajo.2015.04.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Revised: 03/24/2015] [Accepted: 04/25/2015] [Indexed: 11/26/2022]
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Shah SS, Denham LV, Elison JR, Bhattacharjee PS, Clement C, Huq T, Hill JM. Drug delivery to the posterior segment of the eye for pharmacologic therapy. EXPERT REVIEW OF OPHTHALMOLOGY 2014; 5:75-93. [PMID: 20305803 DOI: 10.1586/eop.09.70] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Treatment of diseases of the posterior segment of the eye, such as age-related macular degeneration, cytomegalovirus retinitis, diabetic retinopathy, posterior uveitis and retinitis pigmentosa, requires novel drug delivery systems that can overcome the many barriers for efficacious delivery of therapeutic drug concentrations. This challenge has prompted the development of biodegradable and nonbiodegradable sustained-release systems for injection or transplantation into the vitreous as well as drug-loaded nanoparticles, microspheres and liposomes. These drug delivery systems utilize topical, systemic, subconjunctival, intravitreal, transscleral and iontophoretic routes of administration. The focus of research has been the development of methods that will increase the efficacy of spatiotemporal drug application, resulting in more successful therapy for patients with posterior segment diseases. This article summarizes recent advances in the research and development of drug delivery methods of the posterior chamber of the eye, with an emphasis on the use of implantable devices as well as micro- and nanoparticles.
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Affiliation(s)
- Shalin S Shah
- Department of Ophthalmology, Louisiana State University Health Sciences Center (LSUHSC), 2020 Gravier St. Suite B, Room 3E6, New Orleans, LA 70112-2234, USA, Tel.: +1 678 296 2334, ,
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Safneck JR. Endophthalmitis: A review of recent trends. Saudi J Ophthalmol 2012; 26:181-9. [PMID: 23960990 PMCID: PMC3729827 DOI: 10.1016/j.sjopt.2012.02.011] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2012] [Accepted: 02/28/2012] [Indexed: 11/19/2022] Open
Abstract
Endophthalmitis is a feared complication of trauma, surgical procedures and septicemia. Although uncommon, its potential for significant visual loss is well recognized. Especially over the past decade, complicated surgeries and medical techniques have increased and seriously ill patients are being sustained in ever increasing numbers. New pathogens are being recognized and known ones reclassified thanks to advances in molecular analysis. Continuously evolving PCR methodologies also add a new dimension to the diagnosis of infectious endophthalmitis. As well, medical literature is now truly international, encompassing studies from around the world that expand our understanding of ocular infectious disease. This report reviews some of these changes as they relate to endophthalmitis and particularly to the spectrum of organisms involved.
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Affiliation(s)
- Janice R. Safneck
- Departments of Pathology and Ophthalmology, University of Manitoba, Winnipeg, Manitoba, Canada
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Pollreisz A, Rafferty B, Kozarov E, Lalla E. Klebsiella pneumoniae induces an inflammatory response in human retinal-pigmented epithelial cells. Biochem Biophys Res Commun 2012; 418:33-7. [DOI: 10.1016/j.bbrc.2011.12.102] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2011] [Accepted: 12/20/2011] [Indexed: 01/01/2023]
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15
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Chung KS, Kim YK, Song YG, Kim CO, Han SH, Chin BS, Gu NS, Jeong SJ, Baek JH, Choi JY, Kim HY, Kim JM. Clinical review of endogenous endophthalmitis in Korea: a 14-year review of culture positive cases of two large hospitals. Yonsei Med J 2011; 52:630-4. [PMID: 21623606 PMCID: PMC3104444 DOI: 10.3349/ymj.2011.52.4.630] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
PURPOSE To identify the clinical features and outcomes of endogenous endophthalmitis in Korea. MATERIALS AND METHODS We reviewed 18 patients with endogenous endophthalmitis at 2 Korean hospitals, treated over a 14 year period between January 1993 and December 2006. RESULTS The comorbidities observed in these cases were diabetes mellitus and liver cirrhosis. The most common pathogens, which were found in 7 patients each (38.9%), were Klebsiella pneumonia and Pseudomonas aeruginosa. All patients were treated with systemic antibiotics and fortified topical antibiotics. A surgical approach including vitrectomy was performed in 9 cases (50.0%). The prognosis was generally poor, and visual acuity improved slightly in 6 patients (33.3%). CONCLUSION In this study, diabetes mellitus and Klebsiella pneumonia showed a close relationship with endogenous endophthalmitis, respectively. Endogenous endophthalmitis is a serious risk to sight and careful attention to establishing the diagnosis and management may decrease the ocular morbidity.
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Affiliation(s)
- Kyu Sik Chung
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Young Keun Kim
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Young Goo Song
- Department of Internal Medicine and AIDS Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Chang Oh Kim
- Department of Internal Medicine and AIDS Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Sang Hoon Han
- Department of Internal Medicine and AIDS Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Bum Sik Chin
- Center for Infectious Diseases, National Medical Center, Seoul, Korea
| | - Nam Su Gu
- Department of Internal Medicine and AIDS Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Su Jin Jeong
- Department of Internal Medicine and AIDS Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Ji-Hyeon Baek
- Department of Internal Medicine and AIDS Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Jun Yong Choi
- Department of Internal Medicine and AIDS Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Hyo Youl Kim
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - June Myung Kim
- Department of Internal Medicine and AIDS Research Institute, Yonsei University College of Medicine, Seoul, Korea
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Prognostic factors and outcomes in endogenous Klebsiella pneumoniae endophthalmitis. Am J Ophthalmol 2011; 151:338-44.e2. [PMID: 21168820 DOI: 10.1016/j.ajo.2010.08.036] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2010] [Revised: 08/23/2010] [Accepted: 08/25/2010] [Indexed: 11/22/2022]
Abstract
PURPOSE To determine risk factors for poor visual acuity outcomes in patients with endogenous Klebsiella pneumoniae endophthalmitis. DESIGN Retrospective case-control study. METHODS We reviewed all consecutive patients diagnosed with endogenous Klebsiella pneumoniae endophthalmitis over 20 years. Data collected included patients' demographics, clinical findings, investigations, and therapeutic intervention. Main outcome measures were visual acuity (VA) at 3 months postinfection and/or evisceration. Poor vision was defined as VA worse than 4/200. RESULTS Seventy-one eyes of 61 patients were studied. Mean age was 55.7 (standard deviation [SD] ± 13.1) years. Majority were male (49/61, 80.3%), Chinese (51/61, 83.6%), and had hepatobiliary sepsis (47/61, 77.5%). Mean time to ocular symptoms was 4.4 (± 3.0) days. Fifty-four of 71 eyes (80.2%) had poor vision and 19/71 eyes (26.8%) required evisceration. The most significant risk factor was hypopyon (41/71 eyes, 57.7%) on multivariate analysis (odds ratio [OR], 52.6; 95% confidence interval [CI], 1.7-1000; P = .01). Unilateral involvement (OR, 10.4; 95% CI, 1.2-90.2; P = .01) and patients that were managed before year 2000 (before routine screening was implemented) (OR, 5.2; 95% CI, 1.5-17.9; P = .037) were significant risk factors for evisceration on multivariate analysis. CONCLUSION Patients presenting with hypopyon and unilateral involvement have a poorer prognosis.
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