BACKGROUND: The usefulness of the hypertensive retinopathy classification by Keith-Wagener-Barker (KWB) in clinical practice remains controversial. The simplified Mitchell-Wong grading, combining the two initial KWB' grades in one stage, is proposed as an alternative method; both systems are poorly validated regarding their association with target organ damage. OBJECTIVE: In a population free of cardiovascular disease and diabetes, we aimed to investigate the interobserver and intraobserver agreement of both grading systems, their association with aortic stiffness, carotid hypertrophy or plaques and the role of age and sex on this association. METHODS: Digital retinal images were obtained and graded - according to both classifications - by two independent and blinded observers; aortic stiffness (carotid-femoral pulse wave velocity, m/s) and common carotid hypertrophy (cross-sectional area, mm) or plaques were assessed by tonometry and ultrasound, respectively. RESULTS: From the gradable retinal photos obtained by 200 eyes of 107 consecutive patients (age: 54 ± 13 years, 51% men, 79% hypertensive patients) and after adjustments for confounders, the intraobserver and interobserver level of agreement was as following: KWB 88/64% and Mitchell-Wong 91/71%, respectively; exclusively in younger, not older, individuals aortic stiffness, carotid hypertrophy, but not plaques, were significantly associated with both systems, independently from confounders; no differences regarding target organ damage were found between stages 1 and 2 of KWB. CONCLUSION: Detecting early signs of hypertensive retinopathy may be of value in young individuals; the Mitchell-Wong seems preferable to the KWB classification system only for reasons of simplifying clinical practice.
BACKGROUND: The usefulness of the hypertensive retinopathy classification by Keith-Wagener-Barker (KWB) in clinical practice remains controversial. The simplified Mitchell-Wong grading, combining the two initial KWB' grades in one stage, is proposed as an alternative method; both systems are poorly validated regarding their association with target organ damage. OBJECTIVE: In a population free of cardiovascular disease and diabetes, we aimed to investigate the interobserver and intraobserver agreement of both grading systems, their association with aortic stiffness, carotid hypertrophy or plaques and the role of age and sex on this association. METHODS: Digital retinal images were obtained and graded - according to both classifications - by two independent and blinded observers; aortic stiffness (carotid-femoral pulse wave velocity, m/s) and common carotid hypertrophy (cross-sectional area, mm) or plaques were assessed by tonometry and ultrasound, respectively. RESULTS: From the gradable retinal photos obtained by 200 eyes of 107 consecutive patients (age: 54 ± 13 years, 51% men, 79% hypertensivepatients) and after adjustments for confounders, the intraobserver and interobserver level of agreement was as following: KWB 88/64% and Mitchell-Wong 91/71%, respectively; exclusively in younger, not older, individuals aortic stiffness, carotid hypertrophy, but not plaques, were significantly associated with both systems, independently from confounders; no differences regarding target organ damage were found between stages 1 and 2 of KWB. CONCLUSION: Detecting early signs of hypertensive retinopathy may be of value in young individuals; the Mitchell-Wong seems preferable to the KWB classification system only for reasons of simplifying clinical practice.
Authors: Yoshihiro Inamoto; Igor Petriček; Linda Burns; Saurabh Chhabra; Zachariah DeFilipp; Peiman Hematti; Alicia Rovó; Raquel Schears; Ami Shah; Vaibhav Agrawal; Aisha Ahmed; Ibrahim Ahmed; Asim Ali; Mahmoud Aljurf; Hassan Alkhateeb; Amer Beitinjaneh; Neel Bhatt; Dave Buchbinder; Michael Byrne; Natalie Callander; Kristina Fahnehjelm; Nosha Farhadfar; Robert Peter Gale; Siddhartha Ganguly; Shahrukh Hashmi; Gerhard C Hildebrandt; Erich Horn; Ann Jakubowski; Rammurti T Kamble; Jason Law; Catherine Lee; Sunita Nathan; Olaf Penack; Ravi Pingali; Pinki Prasad; Drazen Pulanic; Seth Rotz; Aditya Shreenivas; Amir Steinberg; Khalid Tabbara; André Tichelli; Baldeep Wirk; Jean Yared; Grzegorz W Basak; Minoo Battiwalla; Rafael Duarte; Bipin N Savani; Mary E D Flowers; Bronwen E Shaw; Nuria Valdés-Sanz Journal: Biol Blood Marrow Transplant Date: 2018-12-03 Impact factor: 5.742
Authors: Carol Y Cheung; Valérie Biousse; Pearse A Keane; Ernesto L Schiffrin; Tien Y Wong Journal: Nat Rev Dis Primers Date: 2022-03-10 Impact factor: 52.329
Authors: Yoshihiro Inamoto; Igor Petriček; Nuria Valdés-Sanz; Linda Burns; Saurabh Chhabra; Zack DeFilipp; Peiman Hematti; Alicia Rovó; Raquel Schears; Ami Shah; Vaibhav Agrawal; Aisha Al-Khinji; Ibrahim Ahmed; Asim Ali; Mahmoud Aljurf; Hassan Alkhateeb; Amer Beitinjaneh; Neel Bhatt; Dave Buchbinder; Michael Byrne; Natalie Callander; Kristina Fahnehjelm; Nosha Farhadfar; Robert Peter Gale; Siddhartha Ganguly; Gerhard C Hildebrandt; Erich Horn; Ann Jakubowski; Rammurti T Kamble; Jason Law; Catherine Lee; Sunita Nathan; Olaf Penack; Ravi Pingali; Pinki Prasad; Drazen Pulanic; Seth Rotz; Aditya Shreenivas; Amir Steinberg; Khalid Tabbara; André Tichelli; Baldeep Wirk; Jean Yared; Grzegorz W Basak; Minoo Battiwalla; Rafael Duarte; Bipin N Savani; Mary E D Flowers; Bronwen E Shaw Journal: Bone Marrow Transplant Date: 2019-02-27 Impact factor: 5.483