Efeito da privação de sono no sistema cardiovascular / The effect of sleep deprivation on cardiovacular system

A privação de sono tem se tornado uma situação frequente na sociedade moderna. A excessiva demanda econômica e social numa sociedade 24 horas tem feito os indivíduos reduzirem seu tempo de sono para suprir as exigências do mercado de trabalho. A privação de sono pode ser tanto aguda (por exemplo, ficar uma noite sem dormir), seletiva (perda de uma fase específica do sono), como também parcial e crônica (dormir poucas horas por um período prolongado). Atualmente, a privação de sono tem recebido particular atenção em virtude das consequências deletérias que exerce na saúde dos indivíduos, incluindo os distúrbios metabólicos e cardiovasculares. Essas situações representam um estresse fisiológico ao organismo , uma vez que possuem grande impacto negativo aos vários sistemas, incluindo o sistema cardiovascular. O desenvolvimento das doenças cardiovasculares, decorrentes da privação do sono tem sido amplamente discutido na literatura e depende intimamente da condição em que essa privação é imposta (total, parcial ou seletiva), visto que os mecanismos que mantêm o sistema cardiovascular estável respondem diferentemente a cada uma delas. Estudos sugerem causas multifatoriais, incluindo...

Effects of massage therapy on sleep quality after coronary artery bypass graft surgery

INTRODUCTION: Having poor sleep quality is common among patients following cardiopulmonary artery bypass graft surgery. Pain, stress, anxiety and poor sleep quality may be improved by massage therapy. OBJECTIVE: This study evaluated whether massage therapy is an effective technique for improving sleep quality in patients following cardiopulmonary artery bypass graft surgery. METHOD: Participants included cardiopulmonary artery bypass graft surgery patients who were randomized into a control group and a massage therapy group following discharge from the intensive care unit (Day 0), during the postoperative period. The control group and the massage therapy group comprised participants who were subjected to three nights without massage and three nights with massage therapy, respectively. The patients were evaluated on the following mornings (i.e., Day 1 to Day 3) using a visual analogue scale for pain in the chest, back and shoulders, in addition to fatigue and sleep. Participants kept a sleep diary during the study period. RESULTS: Fifty-seven cardiopulmonary artery bypass graft surgery patients were enrolled in the study during the preoperative period, 17 of whom were excluded due to postoperative complications. The remaining 40 participants (male: 67.5 percent, age: 61.9 years ± 8.9 years, body mass index: 27.2 kg/m² ± 3.7 kg/m²) were randomized into control (n = 20) and massage therapy (n = 20) groups. Pain in the chest, shoulders, and back decreased significantly in both groups from Day 1 to Day 3. The participants in the massage therapy group had fewer complaints of fatigue on Day 1 (p=0.006) and Day 2 (p=0.028) in addition, they reported a more effective sleep during all three days (p=0.019) when compared with the participants in the control group. CONCLUSION: Massage therapy is an effective technique for improving patient recovery from cardiopulmonary artery bypass graft surgery because it reduces fatigue and improves sleep.