Imperial College London

Mr Ronald Kam

Faculty of MedicineDepartment of Surgery & Cancer

Honorary Clinical Lecturer
 
 
 
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Contact

 

ronald.kam02

 
 
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Location

 

G.3.47Chelsea and Westminster HospitalChelsea and Westminster Campus

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Summary

 

Publications

Publication Type
Year
to

26 results found

Ramsden C, Shweikh Y, Kam R, Bunce C, Foot B, Viswanathan Aet al., 2023, Estimating the rate of severe visual loss (wipe-out) following cataract surgery, a British Ophthalmological Surveillance Unit (BOSU) study., Eye (Lond), Vol: 37, Pages: 3787-3792

BACKGROUND: A sudden, irreversible reduction in visual acuity ('wipe-out') is a feared complication of cataract surgery. Current literature on wipe-out is limited in quantity and quality, and largely predates modern cataract surgery and imaging techniques. The objectives of our study were to estimate the incidence of wipe-out and to identify potential risk factors. METHODS: We prospectively collated cases of wipe-out occurring in the UK during a 25-month study period using the British Ophthalmic Surveillance Unit reporting system. A total of 21 potential cases of wipe-out were reported, 5 of which met all inclusion and exclusion criteria. RESULTS: The estimated incidence of wipe-out during the study period was 0.00000298, or approximately 3 cases per million cataract operations. All cases of wipe-out occurred exclusively in patients with advanced glaucoma (mean deviation -21.0 decibels or worse in the operated eye), with an over-representation of black people (40%) in our case series. A prior diagnosis of retinal vein occlusion (60%) and elevated post-operative IOP (40%) were more common among individuals suffering from wipe-out compared to the general population, suggesting these factors may contribute to the pathogenesis of wipe-out. CONCLUSIONS: Our study shows that wipe-out is a rare complication, affecting approximately 3 per million undergoing cataract surgery. Patients with advanced glaucoma, black patients, and those with previous retinal vein occlusions may be at greater risk of wipe-out. We hope that the findings of our study will be used to help inform treatment decision-making and the cataract surgery consent process.

Journal article

Kam K, Kam S, Davagnanam I, 2022, Silmän radiologinen kuvantaminen, Silmätautien käsikirja, Editors: Seppänen, Kaarniranta, Setälä, Uusitalo, Publisher: Duodecim, Pages: 605-612, ISBN: 978-952-360-049-2

Book chapter

Kam KY, 2019, Chapter 1 - Triage, Moorfields Manual of Ophthalmology Third Edition, Publisher: JP Medical, ISBN: 9781909836945

This third edition expands on the success of the best-selling second edition to create the most practical and accessible ophthalmology manual for trainees.

Book chapter

Serebryanska T, Kam KY, 2018, Rolling out emergency treatment boxes for bacterial endophthalmitis, The Pharmaceutical journal, ISSN: 0031-6873

Journal article

Kam KYR, Muhundhakumar D, Barton K, Jones E, Jayaram H, Khawaja APet al., 2018, Re: Lim et al.: XEN implant-related endophthalmitis (Ophthalmology. 2018;125:209)., Ophthalmology, Vol: 125

Journal article

, 2018, Rolling out emergency treatment boxes for bacterial endophthalmitis, Pharmaceutical Journal, ISSN: 2053-6186

Journal article

Negretti G, Kang S, Basheer K, Duggineni S, Kam KR, Verma Set al., 2017, Patient and staff awareness of ophthalmic treatment costs, British Journal of Healthcare Management, ISSN: 1358-0574

Journal article

Kam R, Buddle S, Waldie L, Rahman Jet al., 2017, Resuscitation skills in a dedicated eye hospital – A questionnaire and viral campaign, Publisher: Elsevier BV, Pages: e65-e65, ISSN: 0300-9572

Conference paper

Kam KR, Sullivan P, 2016, Microsurgical Skills, Training in Ophthalmology, 2nd Edition, Editors: Sundaram, Barsam, Barker, Khaw, Publisher: Oxford University Press, ISBN: 9780199672516

Safe ophthalmic surgery requires the surgeon to have the ability to select the best instruments for a particular task, knowledge of the most effective way of using each instrument, and knowledge of the limitations and side effects of the use of each instrument. This chapter focuses on microsurgical skills. It begins with an introduction to the use of forceps and the way they are used to grasp tissues. It then goes on to discuss toothed forceps, sutures, suturing tissues, and tying a surgeon’s knot. The chapter also presents a number of surgical scenarios, such as suturing a leaking corneal wound, suturing skin during a lateral tarsal strip operation, repairing full-thickness corneal lacerations, and repairing scleral lacerations.

Book chapter

Ramsden CM, Yvon CY, Jacob E, Kam KR, Anikina E, Khan Iet al., 2016, Mantle cell lymphoma masquerading as chalazia, a case report, Expert Review of Ophthalmology, ISSN: 1746-9902

Journal article

Kam KR, Ong HS, Bunce C, Ogunbowale L, Verma Set al., 2015, Sensitivity and specificity of the AdenoPlus point-of-care diagnostic test in detecting adenovirus in patients with conjunctivitis presenting to an ophthalmic emergency department, European Society of Ophthalmology Congress

Conference paper

Kam KR, Ong HS, Bunce C, Ogunbowale L, Verma Set al., 2015, Sensitivity and specificity of the AdenoPlus point-of-care system in detecting adenovirus in conjunctivitis patients at an ophthalmic emergency department: a diagnostic accuracy study, British Journal of Ophthalmology, ISSN: 1468-2079

Background To estimate the diagnostic accuracy (sensitivity and specificity) of the AdenoPlus point-of-care adenoviral test compared to PCR in an ophthalmic accident and emergency service. These findings were compared with those of a previous study.Methods This was a prospective diagnostic accuracy study on 121 patients presenting to an emergency eye unit with a clinical picture of acute adenoviral conjunctivitis. AdenoPlus testing was carried out on one eye of each patient and a PCR analysis was also performed on a swab taken from the same eye. AdenoPlus and PCR results were interpreted by masked personnel. Sensitivity and specificity for the AdenoPlus test were calculated using PCR results as the reference standard.Results 121 patients were enrolled and 109 met the inclusion criteria. 43 patients (39.4%) tested positive for adenovirus by PCR analysis. The sensitivity of the AdenoPlus swab in detecting adenovirus was 39.5% (17/43, 95% CI 26% to 54%) and specificity was 95.5% (63/66, 95% CI 87% to 98%) compared to PCR.Conclusions The AdenoPlus test has a high specificity for diagnosing adenoviral conjunctivitis, but in this clinical setting, we could not reproduce the high sensitivity that has been previously published.

Journal article

Nowak V, Kadom Z, Svrckova P, Kam KRet al., 2014, Current utilisation of electronic medical records in ophthalmic research, Royal College of Ophthalmologists Congress

Conference paper

Kam KYR, Haldar S, Papamichael E, Pearce K, Hayes M, Joshi Net al., 2013, Eye care in the critically ill: a national survey and protocol, Journal of the Intensive Care Society, Vol: 14, Pages: 150-154

Journal article

Papamichael E, Kam KYR, Haldar S, Pearce K, Hayes M, Joshi Net al., 2012, Eye care in Intensive Care Units: a survey across England and protocol, British Oculoplastic Surgery Society 2012 Meeting

Conference paper

Kam KYR, Cole CJ, Bunce C, Watson MP, Kamal D, Olver JMet al., 2012, The lateral tarsal strip in ectropion surgery: is it effective when performed in isolation?, Eye

Journal article

Kam KYR, Hayes M, Joshi N, 2011, Protective eye care in the critically ill - A telephone survey of London hospitals, The Royal College of Ophthalmologists Annual Congress 2011

Conference paper

Kam KYR, Haldar S, Papamichael E, Pearce K, Hayes M, Joshi Net al., 2011, National survey of protective eye care practices in the critically ill, 31st International Symposium on Intensive Care and Emergency Medicine, Pages: S189-S189

Conference paper

Kam KYR, Bunce C, Handy JM, 2011, Inadvisably presenting APACHE scores as parametric data: a study of 200 original articles from leading journals, 31st International Symposium on Intensive Care and Emergency Medicine, Pages: S177-S177

Conference paper

Kam KYR, Mari JM, Wigmore TJ, 2011, Removal of drug delivered via a central venous catheter by a dual-lumen haemodiafiltration catheter inserted at the same site – a quantitative flow model, 31st International Symposium on Intensive Care and Emergency Medicine, Pages: S39-S39

Conference paper

Kam KYR, Mari JM, Wigmore TJ, 2011, Adjacent central venous catheters can result in immediate aspiration of infused drugs during renal replacement therapy, Anaesthesia, Vol: 67, Pages: 115-121

Journal article

Kam KYR, Hayes M, Joshi N, 2011, Ocular care and complications in the critically ill, Trends in Anaesthesia and Critical Care, Vol: 1, Pages: 257-262

Journal article

Lamont RF, Kam KYR, 2008, Atosiban as a tocolytic for the treatment of spontaneous preterm labor, Expert Review of Obstetrics and Gynecology, Vol: 3, Pages: 163-174, ISSN: 1747-4108

Journal article

Kam KYR, Lamont RF, 2008, Developments in the pharmacotherapeutic management of spontaneous preterm labor, Expert Opinion on Pharmacotherapy, Vol: 9, Pages: 1153-1168, ISSN: 1465-6566

Journal article

Kam R, Dimarakis I, 2008, Clinical trials in cardiac stem cell therapy: an update, Stem Cell Repair and Regeneration, Editors: Levicar, Habib, Gordon, Dimarakis, London, Publisher: Imperial College Press, Pages: 147-166, ISBN: 9781860949807

Book chapter

Dimarakis I, Levicar N, Flores C, Kam R, Bhakoo K, Gordon M, Habib Net al., 2006, Regenerative potential of a CD34+ subpopulation of bone marrow-derived stem cells for ischaemic heart disease, 4th International Meeting of the Onassis Cardiac Surgery Center, Pages: S31-S32

Conference paper

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