Abdelrahman Ahmed1, Oluwole Adegbala2, Emmanuel Akintoye3, Chakradhari Inampudi3, Mustafa Ajam1, Ahmed S Yassin1, Emmanuel Olawusi1, Mohamed Shokr1, Paulino Alvarez3, Alexandros Briasoulis4. 1. Division of Cardiology, Wayne State University/Detroit Medical Center, Detroit, Michigan. 2. Division of Cardiology, Englewood Hospital and Medical Center, Seton Hall University-Hackensack Meridian School of Medicine, Englewood, New Jersey. 3. Section of Heart Failure and Transplant, Division of Cardiovascular Diseases, University of Iowa Hospitals and Clinics, Iowa City, Iowa. 4. Section of Heart Failure and Transplant, Division of Cardiovascular Diseases, University of Iowa Hospitals and Clinics, Iowa City, Iowa. Electronic address: alexbriasoulis@gmail.com.
Abstract
BACKGROUND: Left ventricular assist device (LVAD) implantation has historically been underutilized in women compared with men. It was hypothesized that the introduction of continuous-flow LVADs would lead to more LVAD implantations in women and possibly narrow the gender gap. METHODS: Patients who underwent LVAD implantation between 2009 and 2014 were identified using the national inpatient sample. RESULTS: A total of 3511 patients (17,251 when weighted) underwent LVAD implantation in the United States between 2009 and 2014. Mean age was 56 years and there were 817 women in the study sample (23.32%). LVAD implantations in women doubled from 2009 to 2014, but men continued to receive LVAD 3 times more than women. Inpatient mortality after LVAD placement was similar between men and women (13.42% women vs 12.85% men; odds ratio, 1.05; P = .16). Most common complications after LVAD implantation in both genders included acute kidney injury, bleeding requiring blood transfusion, and postoperative sepsis. There were no gender-specific differences in the incidence of periprocedural complications, including postoperative cardiac tamponade, postoperative thromboembolism, or sepsis. In addition, no significant difference was found in length of stay and median hospitalization cost. The use of extracorporeal membrane oxygenation did not differ between men and women. Subgroup analysis in patients older than 65 years of age showed higher in-hospital mortality but no differences between genders. CONCLUSIONS: The number of women undergoing LVAD implantation has increased with the introduction of continuous-flow LVADs, but a gender gap still exists. Most major in-hospital outcomes after LVAD implantation are similar between genders.
BACKGROUND: Left ventricular assist device (LVAD) implantation has historically been underutilized in women compared with men. It was hypothesized that the introduction of continuous-flow LVADs would lead to more LVAD implantations in women and possibly narrow the gender gap. METHODS:Patients who underwent LVAD implantation between 2009 and 2014 were identified using the national inpatient sample. RESULTS: A total of 3511 patients (17,251 when weighted) underwent LVAD implantation in the United States between 2009 and 2014. Mean age was 56 years and there were 817 women in the study sample (23.32%). LVAD implantations in women doubled from 2009 to 2014, but men continued to receive LVAD 3 times more than women. Inpatient mortality after LVAD placement was similar between men and women (13.42% women vs 12.85% men; odds ratio, 1.05; P = .16). Most common complications after LVAD implantation in both genders included acute kidney injury, bleeding requiring blood transfusion, and postoperative sepsis. There were no gender-specific differences in the incidence of periprocedural complications, including postoperative cardiac tamponade, postoperative thromboembolism, or sepsis. In addition, no significant difference was found in length of stay and median hospitalization cost. The use of extracorporeal membrane oxygenation did not differ between men and women. Subgroup analysis in patients older than 65 years of age showed higher in-hospital mortality but no differences between genders. CONCLUSIONS: The number of women undergoing LVAD implantation has increased with the introduction of continuous-flow LVADs, but a gender gap still exists. Most major in-hospital outcomes after LVAD implantation are similar between genders.
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