Abstract
Introduction
Over 300,000 patients present with fragility fractures each year. Following a hip fracture, the 30 days mortality is around 8.3 to 9.3%. Mortality increases to 20–24% after the first year and this risk may persist for at least 5 years. The most significant variables that influence mortality are age, gender, fracture type, prefracture residence, prefracture mobility and ASA scores. Common reported postoperative complications responsible for mortality in hip fracture patients include; heart failure, bronchopneumonia and infections. Most of the studies in the literature focus on management variables influencing mortality rather than the encountered postoperative medical problems leading to death.
The aim of this study is to retrospectively analyze the postoperative medical complications which led to death in a cohort of patients, following a hip fracture.
Methodology
This is a retrospective analysis of a cohort of 82, out of 648, patients with hip fractures who died over a period of 2 years (December 2006–January 2009). Forty nine females and 33 males (ratio 1.5:1) were included in the study with a mean age of 87.8 years (range 59–98 years).
For mortality analysis, patients' co-morbidities and medical events leading to death were categorized according to the involved organ system. This included cardiovascular, respiratory, renal, gastrointestinal, neurological and musculoskeletal systems). The timing and decision of DNAR and palliation was noted for each patient.
The 30 days and the overall mortality were the set outcome measures to be reviewed.
Results
The 30 days mortality was 9.4% and 13.6% overall. The majority of patients had multiple co-morbidities; 75.6% had cardiac morbidities, 28% had respiratory problems, 19.5% had renal problems, 22% had neurological problems, 22% had endocrine problems and 34.1% had miscellaneous problems including cancer in 9 patients.
Out of the 82 patients, 67 died postoperatively and 15 died preoperatively. Of the 67 postoperative deaths the main reported events that led to death were; respiratory in 59.7% (90% of which had chest infection), cardiac in 29.9% (60% of which had pulmonary edema) and sepsis in 35.8% (62.5% of which had chest infection). Of the 15 preoperative deaths the lead cause of death was the respiratory problems, reported in 73.3%, of which 81.8% were due to chest infection.
X% of the patients had DNAR decision and x% were palliated. Documented decisions for DNAR and palliation were done by a senior house officers and registrars in the majority of cases (x%).
Conclusion
The majority of deaths in our series were related to chest infection (54.9%), cardiac failure (15.9%) and sepsis mainly secondary to chest infection (32.9%, of which 62.9% were related to chest infection). Increased awareness of the encountered medical problems that can lead to death consolidates the need of a pre and postoperative orthogeriatric input to optimize these frail patients
