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BRIEF COMMUNICATION
Year : 2008  |  Volume : 56  |  Issue : 2  |  Page : 155-157

Direct aspiration of capsular bag material in a case of sequestered endophthalmitis


Sri Bhagwan Mahaveer Vitreoretinal Services, Medical and Vision Research Foundations, Sankara Nethralaya, Chennai, India

Date of Submission27-Dec-2006
Date of Acceptance03-Jul-2007
Date of Web Publication16-Feb-2008

Correspondence Address:
Lingam Gopal
Vision Research Foundation, 18, College Road, Chennai - 600 006
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0301-4738.39125

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  Abstract 

Chronic recurrent endophthalmitis can occur following uncomplicated cataract surgery with intraocular lens implantation secondary to organisms sequestered in the capsular bag. There is a need to identify these sequestered organisms to facilitate appropriate management. Frequently, specimens from the anterior chamber and vitreous cavity could be unyielding, especially in the early cases in which the vitreous is still uninvolved. This article highlights the technique of directly sampling the capsular bag material in the effective diagnosis of the organism, which facilitated the total cure by irrigation with appropriate antibiotics into the capsular bag.

Keywords: Culture technique, delayed onset endophthalmitis, phacoantigenic uveitis, Propionibacterium acnes , sequestered endophthalmitis


How to cite this article:
Gopal L, Nagpal A, Verma A. Direct aspiration of capsular bag material in a case of sequestered endophthalmitis. Indian J Ophthalmol 2008;56:155-7

How to cite this URL:
Gopal L, Nagpal A, Verma A. Direct aspiration of capsular bag material in a case of sequestered endophthalmitis. Indian J Ophthalmol [serial online] 2008 [cited 2024 Mar 28];56:155-7. Available from: https://journals.lww.com/ijo/pages/default.aspx/text.asp?2008/56/2/155/39125

Chronic localized endophthalmitis (delayed onset endophthalmitis) is an important cause of chronic, recurrent inflammation in pseudophakic eyes caused by organisms sequestered between the intraocular lens (IOL) optic and posterior capsular bag or at the equator. The clinical picture of the disease is highly variable and may be predictive of the disease. But the diagnosis is clinched through the microbiological isolation of the organism from the intraocular specimens. We describe a simple and effective technique which resulted in positive yield of causative organism in such a case. This offered a chance to salvage the IOL, by delivering the appropriate antibiotics into the capsular bag.


  Case Report Top


A 64-year-old male presented to us six months after an uneventful phacoemulsification with IOL implantation, with history of four episodes of redness and pain starting two months after surgery. The signs and symptoms apparently responded to topical prednisolone acetate eye drops (eight times a day and tapered gradually), but recurred following cessation of the treatment. According to the records, his vitreous was never involved. Two anterior chamber taps done previously were negative on microbiological workup. The last aqueous tap was negative even on polymerase chain reaction (PCR) examination for Propionibacterium acnes genome and eubacterial genome. At presentation, his vision was 20/60 in the affected eye. There were keratic precipitates, aqueous flare and cells. The IOL was in situ and there was no definitive plaque made out at the posterior capsule. At 12 O'clock meridian, some creamy material was suspected behind the anterior capsule. Under direct vision using the operating microscope, with maximum pupillary dilatation, a 27-gauge needle connected to a 2-ml syringe was introduced from the infero-temporal quadrant of the limbus under topical anesthesia. With the bevel of the needle facing forwards, the anterior capsule was lifted gently and the creamy material was scraped. The loosened material was gently aspirated and was subjected to smear (KOH, Calcoflour white and Gram's stain) and culture (blood agar, chocolate agar, Brucella blood agar, brain heart infusion broth and Robertson's cooked meat broth). The smear showed plenty of gram-positive pleomorphic bacilli [Figure - 1], which grew Propionibacterium acnes on Brucella blood agar, confirmed with PCR technique. Once the organism was identified, vancomycin (1 mg) was injected into the capsular bag, repeated again after an interval of five days. The infection was totally controlled and he could be weaned off all the medications (moxifloxacin and prednisolone drops initially instilled eight times a day and tapered within one month). At the last examination one year after the intracapsular bag injection, his vision was 20/20 and the eye was quiet.


  Discussion Top


Postoperative delayed onset or chronic endophthalmitis due to sequestered organisms in the capsular bag is not an uncommon complication of an otherwise uncomplicated phacoemulsification surgery with IOL implantation. [1],[2],[3],[4] Propionibacterium acnes is the most commonly isolated organism, with others such as Acinetobacter calcoaceticus , [5] Torulopsis candida ( Candida famata ), [6] Corynebacterium minutissimum , [7] Alcaligenes xylosoxidans , [8] Propionibacterium granulosum , being reported occasionally. In all these patients, the spectrum of organisms and potential difficulty encountered in achieving a positive culture result emphasizes the need for effective sample collection and culture techniques. Hence, it is imperative to identify the organism to facilitate appropriate and timely management. Since very often the vitreous is uninvolved in the initial stages to a significant degree, vitreous specimens are likely to be negative. Even the aqueous tap can be negative for organisms - both by routine culture methods as well as PCR. The technique described here aims at identifying the possible location of the organisms in the form of cheesy plaque-like colonies by careful slit-lamp examination, followed by scraping of the sequestered organisms from the capsule or the equator with a needle tip before aspirating the material. We believe that the microbiological positivity can be substantially improved with this technique. With predominantly posteriorly located plaques, one may have to modify the technique slightly to reach beyond the equator of the IOL where the dead space exists and may harbor the organisms.

Propionibacterium acnes has been isolated from the intraocular specimens with culture and PCR techniques on aqueous and vitreous humor yielding variable results, but the capsular bag biopsy and histopathological examination has invariably yielded positive results and confirmation of the organism. [7],[9] Both light and transmission electron microscopy have documented a close association between propionibacterium acnes and posterior capsular plaque or plaques in the capsular fornices. [10]

Tessler et al. , in a similar study concluded that Propionibacterium acnes endophthalmitis might be one instance in which the culture of the aspirate from the capsular bag may provide a higher yield of positive results than cultures of vitreous and aqueous humor. [10] In the same report, they described a technique of collection of the specimen for microbiological and cytological workup under topical anesthesia through anterior chamber paracentesis, followed by irrigation of the capsular bag with clindamycin. [10]

The technique described in this report is similar but with an additional feature. By deliberately scraping the area of suspected colonization, the colonies are loosened and sucked into the syringe.

One of the conditions, which is often confused with this entity is phacoantigenic uveitis with retained lens matter, which usually resolves after simple removal of lens fragments from the anterior chamber without the use of intraocular antibiotics. The differentiation can be made accurately (especially from the fungal colony) if the lens matter or the plaque is removed from the capsular bag and subjected to careful microbiological and histopathological studies.

The present case report stresses on the fact that postoperative low-grade chronic localized inflammation can be accurately diagnosed and the causative organism can be found out by sampling the capsular bag material rather than the vitreous.

 
  References Top

1.
Winward KE, Pflugfelder SC, Flynn HW Jr, Roussel TJ, Davis JL. Postoperative Propionibacterium endophthalmitis Treatment strategies and long-term results. Ophthalmology 1993;100:447-51.  Back to cited text no. 1
[PUBMED]    
2.
Meisler DM, Zakov ZN, Bruner WE, Hall GS, Mcmohan JT, Zachary AA, et al . Endophthalmitis associated with sequestered intraocular Propionibacterium acnes . Am J Ophthalmol 1987;104:428-9.  Back to cited text no. 2
    
3.
Roussel TJ, Culbertson WW, Jaffe NS. Chronic postoperative endophthalmitis associated with Propionibacterium acnes . Arch Ophthalmol 1987;105:199-201.  Back to cited text no. 3
    
4.
Sawusch MR, Michels RG, Stark WJ, Bruner WE, Annable WL, Green WR. Endophthalmitis due to Propionibacterium acnes sequestered between IOL optic and posterior capsule. Ophthalmic Surg 1989;20:90-2.  Back to cited text no. 4
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5.
Gopal L, Ramaswamy AA, Madhavan HN, Saswade M, Battu RR. Postoperative endophthalmitis caused by sequestered Acinetobacter calcoaceticus . Am J Ophthalmol 2000;129:388-90.  Back to cited text no. 5
[PUBMED]  [FULLTEXT]  
6.
Rao NA, Nerenberg AV, Forster DJ. Torulopsis candida ( Candida famata ) endophthalmitis simulating Propionibacterium acnes syndrome. Arch Ophthalmol 1991;109:1718-21.  Back to cited text no. 6
[PUBMED]    
7.
Arsan AK, Sizmaz S, Ozkanm SB, Duman S. Corynebacterium minutissimum endophthalmitis- Management with antibiotic irrigation of the capsular bag. Int Ophthalmol 1995-1996;19:313-6.  Back to cited text no. 7
    
8.
Rahman MK, Holz ER. Alcaligenes xylosoxidans and Propionibacterium acnes postoperative endophthalmitis in a pseudophakic eye. Am J Ophthalmol 2000;129:813-5.  Back to cited text no. 8
[PUBMED]  [FULLTEXT]  
9.
Buggage RR, Shen DF, Chan CC, Callanan DG. Propionibacterium acnes endophthalmitis diagnosed by microdissection and PCR. Br J Ophthalmol 2003;87:1190-1.  Back to cited text no. 9
    
10.
Tessler HH, Owens SL, Lam S, Deutsch TA. Preliminary study of a new intraocular method in the diagnosis and treatment of Propionibacterium acnes endophthalmitis following cataract extraction. Ophthalmic Surg 1993;24:268-72.  Back to cited text no. 10
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    Figures

  [Figure - 1]


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