Solid organ transplantation in the 21st century Black, Cara K.; Termanini, Kareem M.; Aguirre, Oswaldo ...
Annals of translational medicine,
10/2018, Letnik:
6, Številka:
20
Journal Article
Odprti dostop
Solid organ transplantation (SOT) has emerged from an experimental approach in the 20th century to now being an established and practical definitive treatment option for patients with end-organ ...dysfunction. The evolution of SOT has seen the field progress rapidly over the past few decades with incorporation of a variety of solid organs-liver, kidney, pancreas, heart, and lung-into the donor pool. New advancements in surgical technique have allowed for more efficient and refined multi-organ procurements with minimal complications and decreased ischemic injury events. Additionally, immunosuppression therapy has also seen advancements with the expansion of immunosuppressive protocols to dampen the host immune response and improve short and long-term graft survival. However, the field of SOT faces new barriers, most importantly the expanding demand for SOT that is outpacing the current supply. Allocation protocols have been developed in an attempt to address these concerns. Other avenues for SOT are also being explored to increase the donor pool, including split-liver donor transplants, islet cell implantation for pancreas transplants, and xenotransplantation. The future of SOT is bright with exciting new research being explored to overcome current obstacles.
BACKGROUND:Social media discussions are alive among plastic surgeons. This article represents a primer on beginning to understand how the public would seek out plastic surgeons and how demographics ...shape their preferences.
METHODS:An anonymous 31-question survey was crowdsourced by means of MTurk.
RESULTS:There were a total of 527 respondents. Of these respondents, 33 percent follow plastic surgeons on social media, with those aged younger than 35 years 3.9 times more likely to do so. Google was the first place people would look for a plastic surgeon (46 percent). When asked what was the most influential of all online methods for selecting a surgeon, practice website ranked first (25 percent), but social media platforms ranked higher as a whole (35 percent). Those considering surgical or noninvasive procedures are thee times more likely to select social media platforms as the most influential online method in selecting a surgeon and five times more likely to follow a plastic surgeon on social media. The majority would prefer not seeing the surgeon’s private life displayed on social media (39 percent). Respondents were evenly split regarding whether graphic surgical images would lead them to unfollow accounts. Ninety-six percent of the general public were unclear of the type of board certification a plastic surgeon should hold.
CONCLUSIONS:Clear differences in engagement and perception exist in the public based on age, sex, parental status, and reported country of origin. Social media will soon become a critical strategy in outreach and engagement and a valuable tool in clearing misconceptions within plastic surgery.
Reconstructive microsurgery is an effective limb-saving option for nonhealing lower extremity wounds in diabetic patients. However, the ability to predict the future need for amputation is unclear. ...This article seeks to identify risk factors for amputation following microsurgical free tissue transfer in the diabetic lower extremity.
Diabetic patients undergoing lower extremity free flap surgery between August of 2011 and January of 2018 performed by a single surgeon were identified retrospectively. Patient comorbidities, reconstructive conditions and flap traits, microsurgical outcomes, and long-term outcomes were examined. Variables conferring risk for future amputation were examined by means of regression analysis.
Sixty-four patients met the criteria. The overall immediate flap success rate was 94 percent (60 of 64). Long term, 50 patients (78.1 percent) underwent successful salvage, and 14 patients (21.9 percent) required major amputation. Acute flap loss resulted in four amputations, and delayed complications (hematoma, infection, recurrent nonhealing) resulted in 10 amputations. The average time to amputation was 5.6 months. Risk factors for amputation were end-stage renal disease (OR, 30.7; p = 0.0087), hindfoot wounds (OR, 4.6; p = 0.020), elevated hemoglobin A1C level greater than 8.4 percent (OR, 1.4; p = 0.05), and positive wound cultures (OR, 6.1; p = 0.003).
Multiple comorbidities and poor glucose control were identified as risk factors for amputation after free flap limb salvage. However, successful limb preservation is possible.
Risk, III.
BACKGROUND:Simultaneous ventral hernia repair and panniculectomy (SVHRP) is a procedure that is more commonly being offered to patients with excess skin and subcutaneous tissue in need of a ventral ...hernia repair; however, there are concerns about surgical-site complications and uncertainty regarding the durability of repair. SVHRP outcomes vary within the literature. This study assessed the durability, complication profile, and safety of SVHRP through a large data-driven repository of SVHRP cases.360
METHODS:The current SVHRP literature was queried using the MEDLINE, PubMed, and Cochrane databases. Predefined selection criteria resulted in 76 relevant titles yielding 16 articles for analysis. Meta-analysis was used to analyze primary outcomes, identified as surgical-site occurrence and hernia recurrence. Secondary outcomes included review of techniques used and systemic complications, which were analyzed with pooled weighted mean analysis from the collected data.
RESULTS:There were 917 patients who underwent an SVHRP (mean age, 52.2 ± 7.0 years; mean body mass index, 36.1 ± 5.8 kg/m; mean pannus weight, 3.2 kg). The mean surgical-site occurrence rate was 27.9 percent (95 percent CI, 15.6 to 40.2 percent; I = 70.9 percent) and the mean hernia recurrence rate was 4.9 percent (95 percent CI, 2.4 to 7.3 percent; I = 70.1 percent). Mean follow-up was 17.8 ± 7.7 months. The most common complications were superficial surgical-site infection (15.8 percent) and seroma formation (11.2 percent). Systemic complications were less common (7.8 percent), with a thromboembolic event rate of 1.2 percent. The overall mortality rate was 0.4 percent.
CONCLUSIONS:SVHRP is associated with a high rate of surgical-site occurrence, but surgical-site infection seems to be less prominent than previously anticipated. The low hernia recurrence rate and the safety of this procedure support its current implementation in abdominal wall reconstruction.
BACKGROUND:Poor health literacy is an epidemic in the United States, associated with higher mortality rates and poor postoperative care. Autologous breast reconstruction is highly complex, and the ...identification of complications is difficult even for non–plastic surgeon practitioners. The authors sought to explore the problem of health literacy in this context and identify the ideal postoperative patient education materials.
METHODS:Available online postoperative patient education materials for autologous breast reconstruction and corresponding readability scores were assessed. To derive the ideal formula for materials, the authors crowd-sourced quizzes with A/B testing, a method to examine the outcome of two versions of a single variable. The authors implemented their findings and compared performance on postoperative quizzes with and without oral reinforcement.
RESULTS:Of the 12 postoperative flap complication patient education materials found through an Internet search, the average grade level readability level was 9.9. Only one of 12 (8.3 percent) mentioned symptoms and signs of flap compromise. The A/B tests result revealed that text approximately 400 to 800 words written on a sixth-grade level led to the highest quiz scores. Patients scored significantly higher on the postoperative day–2 quiz when patient education materials, modeled after these findings, were reinforced with oral presentation (p = 0.0059). Retention of high quiz scores remained at postoperative day 10.
CONCLUSIONS:Currently available patient education materials are at a high reading level and lack specific information on the identification of flap compromise. The authors propose the most effective postoperative instructions to be approximately 400 to 800 words written on a grade-six level with images and oral reinforcement.
BACKGROUND:Although venous thrombosis is a leading cause of flap failure, the majority of lower extremity free flap planning is centered on arterial system evaluation. Preoperative identification of ...relevant abnormality in lower extremity venous systems by means of duplex ultrasound may aid in the diagnosis of clinically important abnormality that could affect lower extremity flap outcomes.
METHODS:Between November of 2014 and August of 2017, 57 patients underwent preoperative lower extremity venous duplex imaging and free tissue transfer for lower extremity wounds. A retrospective review was performed to describe lower extremity venous pathologic findings, relevant patient demographic data, comorbid conditions, and outcomes. Discovery of venous abnormality helped guide recipient vein selection.
RESULTS:Fifty-seven consecutive patients underwent 59 free flap operations to treat chronic lower extremity wounds. Venous duplex ultrasonography detected venous insufficiency (defined as >0.5 second of reflux) in 23 patients (39.0 percent), including 16 (27.2 percent) with deep thigh reflux, six (10.2 percent) with superficial calf reflux, and four (6.78 percent) with deep calf reflux. Deep venous thrombosis was found in four patients (6.78 percent) and treated with anticoagulation. The flap success rate was 98.3 percent. Five patients (8.47 percent) progressed to amputation. At a mean follow-up time of 15.1 ± 9.51 months (range, 1.67 to 35.2 months), 53 patients (89.8 percent) were able to continue community ambulation.
CONCLUSIONS:Lower extremity venous duplex testing before free tissue transfer may be useful for optimizing flap recipient vessel selection and for detecting potentially unknown venous abnormality. Development of free flap planning protocols incorporating preoperative vascular imaging is important to achieving good functional outcomes in this comorbid patient population.
CLINICAL QUESTION/LEVEL OF EVIDENCE:Diagnostic, IV.
Abdominally based free tissue transfer (FTT) and latissimus dorsi and immediate fat transfer (LIFT) procedures are both fully autologous options for breast reconstruction. The former is specialized ...and requires comfort with microsurgical technique, whereas LIFT combines a common set of techniques familiar to all plastic surgeons. Comparing the two methods for clinical effectiveness and complications for equivalency in outcomes may help elucidate and enhance patient decision-making.
A retrospective review of a prospectively maintained database between March of 2017 and July of 2018 was performed to compare the LIFTs and FTTs performed by the senior surgeon. Outcomes of interest included postoperative complications, flap success, and follow-up revision and fat-grafting procedures.
Sixty-five breasts were reconstructed by FTT; and 31 breasts were reconstructed with LIFT. Demographics were similar (p > 0.05). LIFT had a shorter length of operation time (343 ± 128 minutes versus 49 ± 137 minutes) (p < 0.0001) and a shorter length of stay (1.65 ± 0.85 days versus 3.83 ± 1.65 days) (p < 0.001). FTTs had a shorter time until drain removal (13.3 ± 4.3 days versus 24.0 ± 11.2 days) (p < 0.0001). The number of major (requiring operation) and minor complications were not statistically different (i.e., FTTs, 20.0 percent major and 27.7 percent minor; LIFT, 12.9 percent major and 19.35 percent minor) (p > 0.05). The need for revisions (FTTs, 0.80 ± 0.71; LIFT, 0.87 ± 0.71) and fat grafting (FTTs, 41.54 percent; LIFT, 58.8 percent) was not statistically different (p > 0.05).
Both the LIFT and abdominally based FTT have similar outcomes and complication rates. However, LIFT may be preferred in patients who require shorter operation times. The LIFT may be the fully autologous breast reconstruction of choice for nonmicrosurgeons.
Therapeutic, III.
BACKGROUND:Abdominally based free tissue transfer (FTT) and latissimus dorsi and immediate fat transfer (LIFT) procedures are both fully autologous options for breast reconstruction. The former is ...specialized and requires comfort with microsurgical technique, whereas LIFT combines a common set of techniques familiar to all plastic surgeons. Comparing the two methods for clinical effectiveness and complications for equivalency in outcomes may help elucidate and enhance patient decision-making.
METHODS:A retrospective review of a prospectively maintained database between March of 2017 and July of 2018 was performed to compare the LIFTs and FTTs performed by the senior surgeon. Outcomes of interest included postoperative complications, flap success, and follow-up revision and fat-grafting procedures.
RESULTS:Sixty-five breasts were reconstructed by FTT; and 31 breasts were reconstructed with LIFT. Demographics were similar (p > 0.05). LIFT had a shorter length of operation time (343 ± 128 minutes versus 49 ± 137 minutes) (p < 0.0001) and a shorter length of stay (1.65 ± 0.85 days versus 3.83 ± 1.65 days) (p < 0.001). FTTs had a shorter time until drain removal (13.3 ± 4.3 days versus 24.0 ± 11.2 days) (p < 0.0001). The number of major (requiring operation) and minor complications were not statistically different (i.e., FTTs, 20.0 percent major and 27.7 percent minor; LIFT, 12.9 percent major and 19.35 percent minor) (p > 0.05). The need for revisions (FTTs, 0.80 ± 0.71; LIFT, 0.87 ± 0.71) and fat grafting (FTTs, 41.54 percent; LIFT, 58.8 percent) was not statistically different (p > 0.05).
CONCLUSIONS:Both the LIFT and abdominally based FTT have similar outcomes and complication rates. However, LIFT may be preferred in patients who require shorter operation times. The LIFT may be the fully autologous breast reconstruction of choice for nonmicrosurgeons.
CLINICAL QUESTION/LEVEL OF EVIDENCE:Therapeutic, III.
BACKGROUND:Technical advances have been made in reconstructive diabetic limb salvage modalities. It is unknown whether these techniques are widely used. This study seeks to determine the role of ...patient- and hospital-level characteristics that affect use.
METHODS:Admissions for diabetic lower extremity complications were identified in the 2012 to 2014 National Inpatient Sample using International Classification of Diseases, Tenth Revision, Clinical Modification diagnosis codes. The study cohort consisted of admitted patients receiving amputations, limb salvage without flap techniques, or advanced limb salvage with flap techniques. Multinomial regression analysis accounting for the complex survey design of the National Inpatient Sample was used to determine the independent contributions of factors expressed as marginal effects.
RESULTS:The authors’ study cohort represented 155,025 admissions nationally. White non-Hispanic patients had the highest proportion of reconstruction without and with flaps, whereas black patients had the lowest. Multinomial regression models revealed that controlling for nongas gangrene and critical limb ischemia, both of which have a much greater incidence in minorities, the effect of race against receipt of reconstructive modalities was attenuated. Access to urban teaching hospitals was the strongest protective factor against amputation (9 percent reduction; p < 0.01) and predictor of receiving limb salvage without flaps (5 percent increase; p < 0.01) and with flaps (3 percent increase; p < 0.01).
CONCLUSIONS:This study identified multiple patient- and hospital-level factors associated with decreased access to the gamut of reconstructive limb salvage techniques. Disparity reduction will likely require a multifaceted strategy that addresses the severity of disease presentation seen in minorities and delivery system capabilities affecting access and use of reconstructive limb salvage procedures.
CLINICAL QUESTION/LEVEL OF EVIDENCE:Risk, III.
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