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Impact of amputation level and comorbidities on functional status of nursing home residents after lower extremity amputation.
J Vasc Surg 2014; 59(5):1323-30.e1JV

Abstract

OBJECTIVE

The ability of nursing home residents to function independently is associated with their quality of life. The impact of amputations on functional status in this population remains unclear. This analysis evaluated the effect of amputations-transmetatarsal (TM), below-knee (BK), and above-knee (AK)--on the ability of residents to perform self-care activities.

METHODS

Medicare inpatient claims were linked with nursing home assessment data to identify admissions for amputation. The Minimum Data Set Activities of Daily Living Long Form Score (0-28; higher numbers indicating greater impairment), based on seven activities of daily living, was calculated before and after amputation. Hierarchical modeling determined the effect of the surgery on postamputation function of residents. Controlling for comorbidity, cognition, and prehospital function allowed for evaluation of Activities of Daily Living trajectories over time.

RESULTS

In total, 4965 residents underwent amputation: 490 TM, 1596 BK, and 2879 AK. Mean age was 81 years, and 54% of the patients were women. Most were white (67%) or black (26.5%). Comorbidities before amputation included diabetes mellitus (70.7%), coronary heart disease (57.1%), chronic kidney disease (53.6%), and/or congestive heart failure (52.1%). Mortality within 30 days of hospital discharge was 9.0%, and hospital readmission was 27.7%. Stroke, end-stage renal disease, and poor baseline cognitive function were associated with the poorest functional outcome after amputation. Compared with residents who received TM amputation, those who had BK or AK amputation recovered more slowly and failed to return to baseline function by 6 months. BK was found to have a superior functional trajectory compared with AK.

CONCLUSIONS

Elderly nursing home residents undergoing BK or AK amputation failed to return to their functional baseline within 6 months. Among frail elderly nursing home residents, higher amputation level, stroke, end-stage renal disease, poor baseline cognitive scores, and female sex were associated with inferior functional status after amputation. These factors should be strongly assessed to maintain activities of daily living and quality of life in the nursing home population.

Authors+Show Affiliations

Division of Vascular Surgery, University of Missouri, School of Medicine, Columbia, Mo. Electronic address: vogeltr@health.missouri.edu.Department of Health Management and Informatics, University of Missouri, School of Medicine, Columbia, Mo.Department of Family and Community Medicine, University of Missouri, School of Medicine, Columbia, Mo.

Pub Type(s)

Comparative Study
Journal Article
Research Support, N.I.H., Extramural

Language

eng

PubMed ID

24406089

Citation

Vogel, Todd R., et al. "Impact of Amputation Level and Comorbidities On Functional Status of Nursing Home Residents After Lower Extremity Amputation." Journal of Vascular Surgery, vol. 59, no. 5, 2014, pp. 1323-30.e1.
Vogel TR, Petroski GF, Kruse RL. Impact of amputation level and comorbidities on functional status of nursing home residents after lower extremity amputation. J Vasc Surg. 2014;59(5):1323-30.e1.
Vogel, T. R., Petroski, G. F., & Kruse, R. L. (2014). Impact of amputation level and comorbidities on functional status of nursing home residents after lower extremity amputation. Journal of Vascular Surgery, 59(5), pp. 1323-30.e1. doi:10.1016/j.jvs.2013.11.076.
Vogel TR, Petroski GF, Kruse RL. Impact of Amputation Level and Comorbidities On Functional Status of Nursing Home Residents After Lower Extremity Amputation. J Vasc Surg. 2014;59(5):1323-30.e1. PubMed PMID: 24406089.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Impact of amputation level and comorbidities on functional status of nursing home residents after lower extremity amputation. AU - Vogel,Todd R, AU - Petroski,Gregory F, AU - Kruse,Robin L, Y1 - 2014/01/07/ PY - 2013/09/10/received PY - 2013/11/21/revised PY - 2013/11/21/accepted PY - 2014/1/11/entrez PY - 2014/1/11/pubmed PY - 2014/6/13/medline SP - 1323 EP - 30.e1 JF - Journal of vascular surgery JO - J. Vasc. Surg. VL - 59 IS - 5 N2 - OBJECTIVE: The ability of nursing home residents to function independently is associated with their quality of life. The impact of amputations on functional status in this population remains unclear. This analysis evaluated the effect of amputations-transmetatarsal (TM), below-knee (BK), and above-knee (AK)--on the ability of residents to perform self-care activities. METHODS: Medicare inpatient claims were linked with nursing home assessment data to identify admissions for amputation. The Minimum Data Set Activities of Daily Living Long Form Score (0-28; higher numbers indicating greater impairment), based on seven activities of daily living, was calculated before and after amputation. Hierarchical modeling determined the effect of the surgery on postamputation function of residents. Controlling for comorbidity, cognition, and prehospital function allowed for evaluation of Activities of Daily Living trajectories over time. RESULTS: In total, 4965 residents underwent amputation: 490 TM, 1596 BK, and 2879 AK. Mean age was 81 years, and 54% of the patients were women. Most were white (67%) or black (26.5%). Comorbidities before amputation included diabetes mellitus (70.7%), coronary heart disease (57.1%), chronic kidney disease (53.6%), and/or congestive heart failure (52.1%). Mortality within 30 days of hospital discharge was 9.0%, and hospital readmission was 27.7%. Stroke, end-stage renal disease, and poor baseline cognitive function were associated with the poorest functional outcome after amputation. Compared with residents who received TM amputation, those who had BK or AK amputation recovered more slowly and failed to return to baseline function by 6 months. BK was found to have a superior functional trajectory compared with AK. CONCLUSIONS: Elderly nursing home residents undergoing BK or AK amputation failed to return to their functional baseline within 6 months. Among frail elderly nursing home residents, higher amputation level, stroke, end-stage renal disease, poor baseline cognitive scores, and female sex were associated with inferior functional status after amputation. These factors should be strongly assessed to maintain activities of daily living and quality of life in the nursing home population. SN - 1097-6809 UR - https://www.unboundmedicine.com/medline/citation/24406089/Impact_of_amputation_level_and_comorbidities_on_functional_status_of_nursing_home_residents_after_lower_extremity_amputation_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0741-5214(13)02171-X DB - PRIME DP - Unbound Medicine ER -