Women More Prone to Nighttime Cardiac Arrest Than Men
MONDAY, Jan. 25, 2021 (HealthDay News) -- Going into cardiac arrest at night can be particularly deadly, and now new research suggests that it might strike women more than men.
Sudden cardiac arrest is an electrical malfunction that causes the heart to stop beating. The survival rate for out-of-hospital cardiac arrest is only 10%, the researchers said.
"Dying suddenly during nighttime hours is a perplexing and devastating phenomenon," said senior study author Dr. Sumeet Chugh. He is director of the Center for Cardiac Arrest Prevention at Cedars-Sinai Smidt Heart Institute, in Los Angeles.
"We were surprised to discover that being female is an independent predictor of these events," Chugh said.
Between 17% and 41% of the estimated 350,000 sudden cardiac arrests in the United States each year occur between 10 p.m. and 6 a.m. For the study, the researchers analyzed data on more than 3,200 daytime cases of sudden cardiac arrest and 918 nighttime cases.
The investigators found that just over 25% of cases involving women occurred at night, compared with nearly 21% of cases involving men, according to the study published online Jan. 19 in the journal Heart Rhythm.
More research is needed to learn about the reasons for women's increased risk, but a respiratory component might play a role, the study authors said.
The findings showed that lung disease was much more common in people who had nighttime cardiac arrests than in those who had daytime cardiac arrests. Those who had nighttime cardiac arrests were also more likely to be current or previous smokers.
"The prevalence of chronic obstructive lung disease and asthma were found to be significantly higher in sudden cardiac arrest cases at night compared with daytime cases, regardless of gender," Chugh said in a Cedars-Sinai news release.
"Brain-affecting medications [including sedatives and painkillers], some of which have the potential to suppress breathing, were also found to have a significantly greater usage in nighttime compared to daytime cardiac arrest," he added.
That suggests that doctors may need to be cautious when prescribing sedatives, and pain and depression drugs to high-risk patients, especially women, the study team noted.
The U.S. National Heart, Lung, and Blood Institute has more on sudden cardiac arrest.
SOURCE: Cedars-Sinai Medical Center, news release, Jan. 20, 2021
Wanawake wanaathiriwa zaidi na mshtuko wa moyo usiku kuliko wanaume Jumatatu, Januari 25, 2021 (HealthDay News) - Kuingia katika mshtuko wa moyo usiku kunaweza kuwa hatari sana, na sasa utafiti mpya unaonyesha kuwa inaweza kuwaathiri wanawake zaidi kuliko wanaume. Kuzuia moyo ghafula ni kasoro ya umeme inayosababisha moyo usisonge. Uwezekano wa kuishi baada ya kushindwa kwa moyo nje ya hospitali ni asilimia 10 tu, watafiti wanasema. "Kifo cha ghafula wakati wa usiku ni jambo lenye kutatanisha na lenye kuangamiza", akasema Dakt. Sumeet Chugh, mwandishi mkuu wa utafiti huo. Yeye ni mkurugenzi wa Kituo cha Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia Kuzuia. "Tulishangazwa kugundua kwamba kuwa mwanamke ni kiashiria cha kujitegemea cha matukio haya", Chugh alisema. Kati ya asilimia 17 na 41 ya visa 350,000 vya mshtuko wa moyo unaokadiriwa kutokea Marekani kila mwaka hutokea kati ya saa 10 jioni na saa 6 asubuhi, watafiti walichunguza data ya zaidi ya kesi 3,200 za mshtuko wa moyo wakati wa mchana na 918 wakati wa usiku. "Wachunguzi walipata kwamba zaidi ya asilimia 25 ya kesi zinazohusisha wanawake zilitokea usiku, ikilinganishwa na karibu asilimia 21 ya kesi zinazohusisha wanaume, kulingana na utafiti uliochapishwa mtandaoni Januari 19 katika jarida la ""Heart Rhythm.""" Utafiti zaidi unahitajika kujifunza kuhusu sababu za kuongezeka kwa hatari ya wanawake, lakini sehemu ya kupumua inaweza kuwa na jukumu, waandishi wa utafiti walisema. Utafiti huo ulionyesha kwamba ugonjwa wa mapafu ulikuwa wa kawaida zaidi kwa watu waliopata mshtuko wa moyo wakati wa usiku kuliko kwa wale waliopata mshtuko wa moyo wakati wa mchana. Wale walio na mshtuko wa moyo wakati wa usiku pia walikuwa na uwezekano mkubwa zaidi wa kuwa wavutaji sigareti wa sasa au wa zamani. "Utawala wa ugonjwa wa mapafu wa kudumu na pumu uligunduliwa kuwa wa juu sana katika visa vya kukomeshwa kwa moyo usiku ikilinganishwa na visa vya mchana, bila kujali jinsia, ""Chugh alisema katika taarifa ya habari ya Cedars-Sinai." "Dawa zinazogusa ubongo [ikiwa ni pamoja na dawa za kutuliza na dawa za kupunguza maumivu], ambazo baadhi yao zina uwezo wa kuzuia kupumua, pia ziligunduliwa kuwa na matumizi makubwa zaidi wakati wa usiku ikilinganishwa na kusimamishwa kwa moyo wakati wa mchana", akaongeza. "Hii inaonyesha kwamba madaktari wanaweza kuwa na tahadhari wakati wa kuagiza dawa za kutuliza, maumivu na unyogovu kwa wagonjwa wenye hatari kubwa, hasa wanawake, ""alisema kikundi cha utafiti." Taasisi ya Kitaifa ya Moyo, Mapafu, na Damu ya Marekani ina ripoti ya kwanza ya ugonjwa wa moyo. "Kifungu cha ""Cedars-Sinai Medical Center"" cha Januari 20, 2021"