Oreto G, Satullo G, Luzza F, Schamroth L
Chest. 1985 May;87(5):689-91. doi: 10.1378/chest.87.5.689.
This presentation reflects an atypical manifestation of sinoatrial block in a patient with chronic renal failure and hyperkalemia (7.8 mEq/L). An allorhythmic distribution of P-P intervals permits the interpretation of sinoatrial block complicated by sinoatrial reciprocation.