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A Journal on Sports Medicine

Official Journal of the Italian Sports Medicine Federation
Indexed/Abstracted in: BIOSIS Previews, EMBASE, Science Citation Index Expanded (SciSearch), Scopus
Impact Factor 0,163

Frequency: Quarterly

ISSN 0025-7826

Online ISSN 1827-1863


Medicina dello Sport 2000 September;53(3):231-7


Com­plete ­right ­bundle ­branch ­block in an ath­lete pop­u­la­tion. A 5 ­year ret­ro­spec­tive anal­ysis

Poletti G., Soldati A., Speziale F., Cellini M., Brunelli D.

Centro di Medicina dello Sport, Azienda U.S.L. Bologna Sud - Casalecchio di Reno (Bologna)

In ­order to ­detect ­forms of com­plete ­right ­bundle ­branch ­block, the ­authors ­have ret­ro­spec­tively ana­lysed a pop­u­la­tion of 14,483 ath­letes vis­ited at the ­Centre of ­Sports Med­i­cine of Cas­a­lec­chio di ­Reno for ­sport eli­gibility. Com­plete ­Right ­Bundle ­Branch ­block was ­found in 65 ath­letes, of an ­average age of 27, prac­tising var­ious ­sports. The prev­a­lence of ­RxBBB was of 0.45%, ­mainly con­cerning ­male ath­letes ­with no rela­tion to a par­tic­ular ­kind of ­sport. The ­electro and echoc­ar­di­o­graphic 5 ­year ­follow up of 21 of ­them was exam­ined in ­order to ­assess the rela­tion­ship ­between ­this ­pathology and a par­tic­ular ­sport. No car­diac ­pathology was ­found respon­sible for the ­right ­bundle ­branch ­block, ­except in 1 ­case of ­post-sur­gical cor­rec­tion of ­ample antri­o­ven­tric­ular ­defect. All ath­letes ­were asymp­to­matic ­during the 5-­year ­follow up and ­none devel­oped com­plete atri­o­ven­tric­ular ­block. The ­results ­obtained ­with elec­tro­car­di­og­raphy, ­dynamic elec­tro­car­di­og­raphy, exer­cise ­tests and ecog­raphy ­showed a ­direct rela­tion­ship ­between com­plete ­right ­bundle ­branch ­block and ­right ven­tric­ular dimen­sions accord­ingly to ­sport prac­tise: ath­letes who had ­been prac­tising ­sports ­during the 5 ­year ­follow up ­showed ­increased ­right ven­tric­ular dimen­sions ­which on the con­trary ­reduced in ath­letes who ­either ­stopped or dimin­ished ­sport ­activity. No rela­tion ­between com­plete ­right ­bundle ­branch ­block and ­dilated ­right ven­tric­ular was ­found. In con­clu­sion, ­this ­study ­showed the benig­nity of com­plete ­right ­bundle ­branch ­block, ­though not ­relating ­directly to car­di­o­vas­cular adap­ta­tions. No ­pathology was ­detected ­even in ­those 8 ­cases in ­which the ­right ­bundle ­branch ­block was com­plete and no car­di­op­athy or sig­nif­i­cant arrhyth­mias ­were ­detected in any of the exam­ined ath­letes. It is impor­tant to under­line ­that com­plete ­right ­bundle ­branch ­block was ­mainly ­detected in ­young ath­letes ­although our ­sample of 16 ­years ­study ­includes ­adult and ­senior ath­letes. The ­results ­obtained are ­very inter­esting; nev­er­the­less, con­sid­ering ­that the ­cause of com­plete ­right ­bundle ­branch ­block in no car­di­o-­pathic ath­letes is ­still ­unknown, our ­data ­need ­enlarging in ­order to get ­more reli­able sci­en­tific ­results.

language: Italian


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