# Arritmia sinusal | Sinus arrhythmia

# Definição | Definition

Ritmo sinusal com variação do intervalo PP entre 160 e 220 ms.

Sinus rhythm with PP interval variation between 160 and 220 ms.

# Exemplos | Examples

- Exemplo 1 | Example #1

Paciente do sexo masculino, 13 anos, em realização de exame eletivo. Ao ECG apresenta ritmo sinusal com variação do intervalo PP entre 160 e 220 ms, compatível com **arritmia sinusal**.

*13-year-old male patient undergoing elective examination. On ECG, tracing shows sinus rhythm with PP interval between 160 ms and 220 ms, consistent with **sinus arrhythmia**.*

***![](https://lh7-rt.googleusercontent.com/docsz/AD_4nXc59yjNfF2hsmWypoSiUPwDemx1UZUGFvjpIrhzGmUrLvJml3ZddidEFyYgn1f7utxLF-0UxirIdjHj3w5GDxHPDG5x-s8kT81fPF5ze2Tw2FjhU8mtoLGK2ovZ1DrQDA5L2eMH?key=rU1kxsi88NHj_pmOsqxW0zP8)***

- Exemplo 2 | Example #2

Paciente do sexo masculino, 19 anos, com queixa de dor torácica, e epigastralgia. Tem história familiar de doença coronariana. Ao exame físico, PA 160/120 mmHg. Ao ECG, apresenta ritmo sinusal com com variação do intervalo PP entre 160 e 220 ms, compatível com **arritmia sinusal.**

19-year-old male patient presenting with chest pain and epigastric pain. He has a family history of coronary artery disease. On physical examination, BP 160/120 mmHg. On ECG, tracing shows sinus rhythm with PP interval variation between 160 to 220 ms, consistent with **sinus arrhythmia**.

**![](https://lh7-rt.googleusercontent.com/docsz/AD_4nXdGHeYHIF8DmSZ6DSFmEG_Zc4Y-BneGteoRttBoUXYgmmu27dbffM_t4rwXIu3u4JUkPH0rPnEDo2y39vfrzJMLl-OFjHaMwdYqSlWs7m8Yhf-9UutkLJdAbVXkPT_Xk8zJDUP57g?key=rU1kxsi88NHj_pmOsqxW0zP8)**