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Term Detail
MP term:prolonged QRS complex duration
Synonym: prolonged QRS duration
Synonym: prolonged QRS interval
Synonym: QRS interval elongation
Synonym: widened QRS complex
MP id: MP:0010392
Definition: increase in the length of time of the largest-amplitude portion of the ECG, caused by currents generated when the ventricles depolarize prior to their contraction; prolongation of the QRS complex duration reflects slowed conduction in the heart
Number of paths to term: 2

is-adenotes an 'is-a' relationship
part-ofdenotes a 'part-of' relationship


mammalian phenotype
        is-acardiovascular system phenotype
                is-aabnormal cardiovascular system physiology
                        is-aabnormal impulse conducting system conduction
                                is-aabnormal heart electrocardiography waveform feature
                                        is-aabnormal QRS complex
                                                is-aabnormal Q wave +
                                                is-aabnormal ventricular activation time
                                                is-adecreased QRS amplitude
                                                is-afragmented QRS complex
                                                is-aincreased QRS amplitude
                                                is-aprolonged QRS complex duration [MP:0010392] (68 genotypes, 68 annotations)
                                                is-ashortened QRS complex duration


mammalian phenotype
        is-acardiovascular system phenotype
                is-aabnormal cardiovascular system physiology
                        is-aabnormal impulse conducting system conduction
                                is-aheart block
                                        is-aintraventricular block
                                                is-abundle branch block
                                                        is-aprolonged QRS complex duration [MP:0010392] (68 genotypes, 68 annotations)

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last database update
09/23/2014
MGI 5.19
The Jackson Laboratory