RESUMEN
PURPOSE: To assess precise topographic changes of the breast, objective documentation and evaluation of pre- and postoperative results are crucial. New technologies for mapping the body using digital, three-dimensional surface measurements have offered novel ways to numerically assess the female breast. Due to the lack of clear demarcation points of the breast contour, the selection of landmarks on the breast is highly dependent on the examiner, and, therefore, is prone to error when conducting before-after comparisons of the same breast. This study describes an alternative to volumetric measurements, focusing on topographic changes of the female breast, based on three-dimensional scans. METHOD: The study was designed as an interventional prospective study of 10 female volunteers who had planned on having aesthetic breast augmentation with anatomical, textured implants. Three dimensional scans of the breasts were performed intraoperatively, first without and then with breast implants. The topographic change was determined as the mean distance between two three-dimensional layers before and after augmentation. This mean distance is defined as the Topographic Shift. RESULTS: The mean implant volume was 283 cc (SD = 68.6 cc, range = 210-395 cc). The mean Topographic Shift was 7.4 mm (SD = 1.9 mm, range = 4.8-10.7 mm). The mean Topographic Shifts per quadrant were: I: 8.0 mm (SD = 3.3 mm); II: 9.2 mm (SD = 3.1 mm); III: 6.9 mm (SD = 3.5 mm); IV: 1.9 mm (SD = 4.3 mm). CONCLUSION: The Topographic Shift, describing the mean distance between two three-dimensional layers (for example before and after a volume changing therapy), is a new approach that can be used for assessing topographic changes of a body area. It was found that anatomical, textured breast implants cause a topographic change, particularly on the upper breast, in quadrant II, the décolleté.
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Implantación de Mama/métodos , Implantes de Mama , Mama/cirugía , Imagenología Tridimensional/métodos , Mamoplastia/métodos , Adulto , Estética , Femenino , Humanos , Persona de Mediana Edad , Estudios ProspectivosRESUMEN
PURPOSE: In this trial, we used a previously developed prototype software to assess aesthetic results after reconstructive surgery for congenital breast asymmetry using automated anthropometry. To prove the consensus between the manual and automatic digital measurements, we evaluated the software by comparing the manual and automatic measurements of 46 breasts. METHODS: Twenty-three patients who underwent reconstructive surgery for congenital breast asymmetry at our institution were examined and underwent 3D surface imaging. Per patient, 14 manual and 14 computer-based anthropometric measurements were obtained according to a standardized protocol. Manual and automatic measurements, as well as the previously proposed Symmetry Index (SI), were compared. RESULTS: The Wilcoxon signed-rank test revealed no significant differences in six of the seven measurements between the automatic and manual assessments. The SI showed robust agreement between the automatic and manual methods. CONCLUSION: The present trial validates our method for digital anthropometry. Despite the discrepancy in one measurement, all remaining measurements, including the SI, showed high agreement between the manual and automatic methods. The proposed data bring us one step closer to the long-term goal of establishing robust instruments to evaluate the results of breast surgery. LEVEL OF EVIDENCE: IV.
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Mama/anatomía & histología , Imagenología Tridimensional/métodos , Imagen por Resonancia Magnética/métodos , Adulto , Antropometría/métodos , Estética , Femenino , Humanos , Mastectomía , Reproducibilidad de los Resultados , Programas InformáticosRESUMEN
Acute kidney injury (AKI) prevalence in surgical patients is high, emphasizing the need for preventative measures. This study addresses the insufficient evidence on nephroprotective intraoperative fluid resuscitation and highlights the drawbacks of relying solely on serum creatinine/urine output to monitor kidney function. This study assessed the impact of intraoperative fluid management on AKI in female breast cancer patients undergoing autologous breast reconstruction, utilizing novel urinary biomarkers (TIMP-2 and IGFBP-7). In a monocentric prospective randomized controlled trial involving 40 patients, liberal (LFA) and restrictive (FRV) fluid management strategies were compared. TIMP-2 and IGFBP-7 biomarker levels were assessed using the NephroCheck (bioMerieux, France) test kit at preoperative, immediate postoperative, and 24-h postoperative stages. FRV showed significantly higher immediate postoperative biomarker levels, indicating renal tubular stress. FRV patients had 21% (4/19) experiencing AKI compared to 13% (2/15) in the LFA group according to KDIGO criteria (p = 0.385). Restrictive fluid resuscitation increases the risk of AKI in surgical patients significantly, emphasizing the necessity for individualized hemodynamic management. The findings underscore the importance of urinary biomarkers in early AKI detection.
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Lesión Renal Aguda , Biomarcadores , Fluidoterapia , Proteínas de Unión a Factor de Crecimiento Similar a la Insulina , Inhibidor Tisular de Metaloproteinasa-2 , Humanos , Lesión Renal Aguda/terapia , Lesión Renal Aguda/etiología , Lesión Renal Aguda/orina , Lesión Renal Aguda/diagnóstico , Biomarcadores/orina , Femenino , Fluidoterapia/métodos , Persona de Mediana Edad , Proteínas de Unión a Factor de Crecimiento Similar a la Insulina/orina , Proteínas de Unión a Factor de Crecimiento Similar a la Insulina/sangre , Estudios Prospectivos , Inhibidor Tisular de Metaloproteinasa-2/orina , Medición de Riesgo , Neoplasias de la Mama/cirugía , Anciano , AdultoRESUMEN
BACKGROUND: Complication rates of up to 46 percent are reported following pressure sore surgery. Pressure sore patients often exhibit ineffective postoperative wound healing despite tension-free flap coverage, necessitating surgical revision and prolonged hospitalization. Rather than pressure sore recurrence, such impaired healing reflects a failed progress through the physiologic stages of the normal wound-healing cascade. The principal objective of the study reported here was to elucidate potentially modifiable inherent variables that predict predisposition to impaired healing and to provide a tool for identifying cases at risk for complicated early postoperative recovery following pressure sore reconstruction. METHODS: A retrospective chart review of late-stage (stage 3 or higher) sacral and ischial pressure sore patients who underwent flap reconstruction from 2014 to 2019 was performed. A multivariable logistic regression model was used to identify key patient and operative factors predictive of impaired healing. Furthermore, the Assessment Score to Predict Pressure Sore Impaired Healing (A-PePSI) was established based on the identified risk factors. RESULTS: In a cohort of 121 patients, 36 percent exhibited impaired healing. Of these, 34 patients suffered from dehiscences, necessitating surgical revision. Statistically significant risk factors comprising late recurrence (OR, 3.8), immobility (OR, 12.4), greater surface (>5 cm diameter; OR, 7.3), and inhibited thrombocytes (aspirin monotherapy; OR, 5.7) were combined to formulate a prognostic scoring system (A-PePSI LIGhT). CONCLUSIONS: The A-PePSI LIGhT score serves as a prognostic instrument for assessing individual risk for impaired healing in pressure sore patients. Preoperative risk stratification supports rational decision-making regarding operative candidacy, allows evidence-based patient counseling, and supports the implementation of individualized treatment protocols. . CLINICAL QUESTION/LEVEL OF EVIDENCE: Risk, III.
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Plaquetas/fisiología , Complicaciones Posoperatorias/epidemiología , Úlcera por Presión/fisiopatología , Úlcera por Presión/cirugía , Cicatrización de Heridas , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Masculino , Persona de Mediana Edad , Valor Predictivo de las Pruebas , Pronóstico , Recurrencia , Reoperación , Estudios Retrospectivos , Medición de Riesgo , Factores de Riesgo , Adulto JovenRESUMEN
INTRODUCTION: There is insufficient scientific evidence from randomised controlled trials to support the routine use of closed-suction drains in body contouring procedures. The aim of this study was to evaluate cumulative seroma volume, length of hospital stay and complication rates in abdominoplasty patients without drains in direct comparison with a cohort receiving drains. MATERIAL AND METHODS: Abdominoplasty patients were prospectively randomised in two study groups with (MD) and without (OD) placement of closed-suction drains. Patients with a BMI ≤ 30 kg/m2 undergoing horizontal or combined horizontal/vertical incision abdominoplasty were included. Scarpa's fascia was preserved during dissection. Exclusion criteria comprised simultaneous liposuction, coagulation disorders and ASA score ≥ 3. Cumulative seroma volume over a four-week follow-up period was assessed as the primary outcome measure. Secondary outcome measures were complications requiring surgical revision and length of hospital stay. RESULTS: This trial did not identify a statistically significant difference in cumulative seroma volume between the MD (30/53) and OD (23/53) cohorts in 53 patients (MMD 493 ± SD 407 ml; MOD 459 ± SD 624 ml; p = 0.812). However, a significantly shorter average length of hospital stay was observed in the OD population (MMD 5.1 ± SD 1.4 d; MOD 4.2 ± SD 1.5 d; p = 0.023). Complication rates were equal in both study groups (nMD = 1; nOD = 1). CONCLUSION: The results of this trial do not justify routine placement of closed-suction drains in abdominoplasty procedures (horizontal or combined horizontal/vertical incision) in the pre-obese patient cohort (BMI ≤ 30 kg/m2). Drain placement should be evaluated on an individual patient-specific basis.
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Abdominoplastia , Complicaciones Posoperatorias , Drenaje , Humanos , Seroma/etiología , SucciónRESUMEN
In plastic surgery, lipofilling is a frequent procedure. Unsatisfactory vascularization and impaired cell vitality can lead to unpredictable take rates in the fat graft. The proliferation and neovascularization inducing properties of adipose tissue-derived stem cells may contribute to solve this problem. Therefore, the enrichment of fat grafts with stem cells is studied intensively. However, it is difficult to compare these studies because many factors-often not precisely described-are influencing the results. Our study summarizes some factors which influence the cell yield like harvesting, isolation procedure and quantification. Stem cells were isolated after liposuction. Quantification was done using a cell chamber, colony counting, or flow cytometry with changes to one parameter, only, for each comparison. Quantification of cells isolated after liposuction at the same harvesting site from the same patient can vary greatly depending on the details of the isolation protocol and the method of quantification. Cell yield can be influenced strongly by many factors. Therefore, a comparison of different studies should be handled with care.
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Tejido Adiposo/citología , Células Madre Mesenquimatosas/citología , Cultivo Primario de Células/métodos , Recolección de Tejidos y Órganos/métodos , Células Cultivadas , Citometría de Flujo/métodos , Citometría de Flujo/normas , Humanos , Lipectomía/métodos , Lipectomía/normas , Cultivo Primario de Células/normas , Recolección de Tejidos y Órganos/normasRESUMEN
BACKGROUND: Treatment outcomes of Dupuytren's disease depend largely on degree of contracture and biological severity. Longitudinal assessment of each is crucial for effective care and long-term outcome assessment. Ideally, each Dupuytren's patient should have ongoing interval evaluations. Because of the large number of Dupuytren's patients, it would be impractical and costly for health care professionals to examine every patient in person on a regular basis. Patient-based evaluations might provide a useful and cost-effective alternative to office-based examination. METHODS: Finger goniometry is the standard metric for office-based evaluation of Dupuytren's disease. This study's goal was to develop a new patient-reported goniometric system. The authors developed a completely Web-based goniometric software for patients to use without supervision and without undue effort or cost. They then evaluated the validity and precision of the core measurement system and the reliability of its patient-based application. RESULTS: With a correlation of 0.992 (p < 0.01), a mean deviation of -0.25 degree, and a standard deviation of 2.74 degrees in patient-based application, the authors found their goniometric software to be comparable to practitioner-based, conventional goniometry. The authors believe patient-based goniometry to be a sufficiently accurate, valid, and reliable approach for longitudinal clinical assessment of Dupuytren's disease. CONCLUSIONS: Patient-based goniometric approaches have great potential for inexpensive, accurate, and accessible longitudinal assessment of the large population of Dupuytren's patients. Such approaches could help to substantially improve overall care of Dupuytren's disease through early diagnosis and timely treatment. In addition, being able to collect reliable patient data on a regular basis and on a larger scale could help improve understanding of the natural history of Dupuytren's disease. CLINICAL QUESTION/LEVEL OF EVIDENCE: Diagnostic, I.
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Artrometría Articular/instrumentación , Dedos/fisiopatología , Contractura de Dupuytren/diagnóstico , Contractura de Dupuytren/fisiopatología , Diseño de Equipo , Humanos , Reproducibilidad de los Resultados , Programas InformáticosRESUMEN
BACKGROUND: The question to what extent perfusion in deep inferior epigastric perforator (DIEP) flaps depends on specific perforator characteristics has been raised. Anatomical studies and previous clinical trials focussing on DIEP flap perfusion resulted in discrepancies. This prospective study investigates how perforator row, number and diameter affect DIEP flap microperfusion via Indocyanine Green (ICG) fluorescence angiography. METHODS: The fractional weight of insufficiently perfused flap tissue in Zone 4 related to the total DIEP flap weight was measured based on ICG fluorescence angiography and defined as Zone 4 %. As a surrogate for overall DIEP flap perfusion, Zone 4 % was assessed according to the row, number and diameter of perforators included in the flap. RESULTS: In 42 unilateral DIEP flap breast reconstructions, neither medial (33.6 ± 14.2 %)/lateral perforator row (29.9 ± 7.5 %, pâ¯=â¯0.683) nor the parameter perforator number (single perforator 31.5 ± 14.4 %, two perforators 30.2 ± 10.2 %, pâ¯=â¯0.727) had a statistically significant effect on flap tissue availability as measured via Zone 4 %. A negative correlative trend between perforator diameter and Zone 4 % (râ¯=â¯-0.096, pâ¯=â¯0.588) was observed. CONCLUSION: Zone 4 % provides a novel method for an objective assessment of DIEP flap perfusion. Medial/lateral row selection and other perforator properties (number, diameter) within the standard ranges, did not affect Zone 4 % as indicated by ICG fluorescence angiography.
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Neoplasias de la Mama/cirugía , Arterias Epigástricas/trasplante , Mamoplastia/métodos , Colgajo Perforante/irrigación sanguínea , Angiografía por Tomografía Computarizada , Femenino , Fluorescencia , Humanos , Verde de Indocianina , Persona de Mediana Edad , Estudios ProspectivosRESUMEN
AIM: This study was performed to determine whether between 2015 and 2017 there has been a change in the preferred method of treatment of Dupuytren disease by German hand surgeons, especially with respect to percutaneous needle fasciotomy. METHOD: In 2015 and 2017, 530 members of the German Society for Surgery of the Hand were invited to take part in an online survey, asking for their preferred treatment for Dupuytren disease, including decision criteria and in relation to Tubiana stages. 110 and 101 responders, respectively, took part. In both surveys, 86 surgeons stated that they treated up to 100 patients per year (Group A), while 24 and 15 surgeons, respectively, treated more than 100 Dupuytren patients annually (Group B). RESULTS: In both surveys, limited fasciectomy was found to be the preferred method (82.9â % and 87.7â %). Treatment with clostridial collagenase is performed only sporadically (1.3â % or 1.4â %). Percutaneous needle fasciotomy is of minor relevance in stage I (19.1â % or 10.9â %) and II (16.4â % or 9.9â %) and is performed mainly by surgeons who treat more than 100 patients per year.The most important criterion for the decision on what treatment should be chosen was "best outcome" (54.3â % and 68.6â %). CONCLUSION: Between 2015 and 2017, there was no great change in the choice of treatment for Dupuytren disease in Germany. In particular, there was no increase in PNF procedures.