Journal of reconstructive microsurgery, Jan 27, 2018
Primary closure of the donor-site after harvest of a large anterolateral thigh flap (ALT) is ass... more Primary closure of the donor-site after harvest of a large anterolateral thigh flap (ALT) is associated with significant morbidity. Incisional negative pressure therapy (INPT) may decrease complications in high-risk incisions. This study assessed if the incidence of complications after primary closure of the ALT flap donor-site decreases with INPT. Retrospective cohort study of a prospectively maintained database including patients who underwent upper and lower limb reconstruction, using an ALT free flap with primary closure of the donor-site. Two groups were defined: primary closure and INPT (study group) and primary closure with traditional dressings (control group). Nonparametric statistics were employed to identify prognostic factors, < 0,05. Fifty-eight free ALT flaps in 58 patients (study group = 28; control group = 30) were included. Median flap width and length were 9 cm (range: 5-14) and 25 cm (range: 10-48), respectively. Median follow-up was 19 months (range: 3-7...
Journal of reconstructive microsurgery, Jan 19, 2016
Background Supermicrosurgery is a technique used for dissection and anastomosis of submillimeter ... more Background Supermicrosurgery is a technique used for dissection and anastomosis of submillimeter diameter vessels. This technique requires precise hand movements and superb eye-hand coordination, making continuous training necessary. Biological in vivo and ex vivo models have been described for this purpose, the latter being more accessible and cost-effective. The aim of this study is to present a new ex vivo training model using a chicken leg. Methods In 28 chicken legs, an anatomical study was performed. An intramuscular perforator vessel was identified and dissected. Arterial diameters of 0.7, 0.5, and 0.3 mm were identified and consistency of the perforator was assessed. In additional 10 chicken legs, 25 submillimeter arteries were anastomosed using this perforator vessel. Five arteries of 0.3 and 10 of 0.5 mm were anastomosed with nylon 11-0 and 12-0 sutures. Intravascular stent (IVaS) technique and open guide (OG) technique were used in 0.5-mm arteries. A total of 10 arteries ...
Surgery for Obesity and Related Diseases, Volume 5, Issue 3, Pages S18, May 2009, Authors:Alex Es... more Surgery for Obesity and Related Diseases, Volume 5, Issue 3, Pages S18, May 2009, Authors:Alex Escalona, MD; Ricardo Yañez; Fernando Pimentel; Manoel Galvao, MD; Luis Ibañez; Dannae Turiel; Camilo Boza, MD; Diego Awruch, MD; Keith S. Gersin, MD. Journal Home, ...
Living animal models are frequently used for perforator flap dissection training, but no ex vivo ... more Living animal models are frequently used for perforator flap dissection training, but no ex vivo models have been described. The aim of this study is to present a novel nonliving model for perforator flap training based on a constant perforator in the chicken leg. A total of 15 chicken legs were used in this study. Anatomical dissection of the perforator was performed after its identification using ink injection, and in four of these specimens a perforator-based flap was raised. The anatomical dissection revealed a constant intramuscular perforator with a median length of 5.7 cm. Median proximal and distal vessel diameters were 0.93 and 0.4 mm, respectively. The median dissection time was 77.5 minutes. This study introduces a novel, affordable, and reproducible model for the intramuscular dissection of a perforator-based flap using an ex vivo animal model. Its consistent perforator and appropriate-sized vessels make it useful for training.
Background: The benefits of hepatic resections for colorectal liver metastases are well known. Th... more Background: The benefits of hepatic resections for colorectal liver metastases are well known. This is not the case for excisions in the treatment of non-colorectal, non neuroendocrine liver metastases. Aim: To assess the results of liver resection in the ...
Los gemelos fusionados se han descrito desde épocas pre-cristianas 1 y la primera separación exit... more Los gemelos fusionados se han descrito desde épocas pre-cristianas 1 y la primera separación exitosa data de 1689 2 . El apelativo de "siameses" se originó en la historia de dos hermanos fusionados nacidos en Siam en 1811, quienes se casaron con dos hermanas, vivieron 63 ...
... Report of one case. Drs. RICARDO YÁÑEZ M. 1 , XIMENA PARADA D. 2 , MARIO DA VENEZIA R. 2 , In... more ... Report of one case. Drs. RICARDO YÁÑEZ M. 1 , XIMENA PARADA D. 2 , MARIO DA VENEZIA R. 2 , Int. ... En laparotomía exploradora se encuentra un vólvulo y dilatación del intestino delgado en relación a una malformación vascular y lesiones multilobuladas en mesenterio. ...
... Drs. RICARDO YÁÑEZ M. 1 , CRISTIAN GAMBOA C. 1 , JORGE MARTÍNEZ C. 1 , ERIC ORELLANA U. 2 , J... more ... Drs. RICARDO YÁÑEZ M. 1 , CRISTIAN GAMBOA C. 1 , JORGE MARTÍNEZ C. 1 , ERIC ORELLANA U. 2 , JOSÉ M. CLAVERO R. 3 , IGNACIO GOÑI E. 4 , JAVIERA TORRES M. 5 ,NICOLÁS JARUFE C. 1. ... Senra GS, Pereira AC, Murilo dos Santos L, Carvalho YR, Brandao AA. ...
Journal of reconstructive microsurgery, Jan 27, 2018
Primary closure of the donor-site after harvest of a large anterolateral thigh flap (ALT) is ass... more Primary closure of the donor-site after harvest of a large anterolateral thigh flap (ALT) is associated with significant morbidity. Incisional negative pressure therapy (INPT) may decrease complications in high-risk incisions. This study assessed if the incidence of complications after primary closure of the ALT flap donor-site decreases with INPT. Retrospective cohort study of a prospectively maintained database including patients who underwent upper and lower limb reconstruction, using an ALT free flap with primary closure of the donor-site. Two groups were defined: primary closure and INPT (study group) and primary closure with traditional dressings (control group). Nonparametric statistics were employed to identify prognostic factors, < 0,05. Fifty-eight free ALT flaps in 58 patients (study group = 28; control group = 30) were included. Median flap width and length were 9 cm (range: 5-14) and 25 cm (range: 10-48), respectively. Median follow-up was 19 months (range: 3-7...
Journal of reconstructive microsurgery, Jan 19, 2016
Background Supermicrosurgery is a technique used for dissection and anastomosis of submillimeter ... more Background Supermicrosurgery is a technique used for dissection and anastomosis of submillimeter diameter vessels. This technique requires precise hand movements and superb eye-hand coordination, making continuous training necessary. Biological in vivo and ex vivo models have been described for this purpose, the latter being more accessible and cost-effective. The aim of this study is to present a new ex vivo training model using a chicken leg. Methods In 28 chicken legs, an anatomical study was performed. An intramuscular perforator vessel was identified and dissected. Arterial diameters of 0.7, 0.5, and 0.3 mm were identified and consistency of the perforator was assessed. In additional 10 chicken legs, 25 submillimeter arteries were anastomosed using this perforator vessel. Five arteries of 0.3 and 10 of 0.5 mm were anastomosed with nylon 11-0 and 12-0 sutures. Intravascular stent (IVaS) technique and open guide (OG) technique were used in 0.5-mm arteries. A total of 10 arteries ...
Surgery for Obesity and Related Diseases, Volume 5, Issue 3, Pages S18, May 2009, Authors:Alex Es... more Surgery for Obesity and Related Diseases, Volume 5, Issue 3, Pages S18, May 2009, Authors:Alex Escalona, MD; Ricardo Yañez; Fernando Pimentel; Manoel Galvao, MD; Luis Ibañez; Dannae Turiel; Camilo Boza, MD; Diego Awruch, MD; Keith S. Gersin, MD. Journal Home, ...
Living animal models are frequently used for perforator flap dissection training, but no ex vivo ... more Living animal models are frequently used for perforator flap dissection training, but no ex vivo models have been described. The aim of this study is to present a novel nonliving model for perforator flap training based on a constant perforator in the chicken leg. A total of 15 chicken legs were used in this study. Anatomical dissection of the perforator was performed after its identification using ink injection, and in four of these specimens a perforator-based flap was raised. The anatomical dissection revealed a constant intramuscular perforator with a median length of 5.7 cm. Median proximal and distal vessel diameters were 0.93 and 0.4 mm, respectively. The median dissection time was 77.5 minutes. This study introduces a novel, affordable, and reproducible model for the intramuscular dissection of a perforator-based flap using an ex vivo animal model. Its consistent perforator and appropriate-sized vessels make it useful for training.
Background: The benefits of hepatic resections for colorectal liver metastases are well known. Th... more Background: The benefits of hepatic resections for colorectal liver metastases are well known. This is not the case for excisions in the treatment of non-colorectal, non neuroendocrine liver metastases. Aim: To assess the results of liver resection in the ...
Los gemelos fusionados se han descrito desde épocas pre-cristianas 1 y la primera separación exit... more Los gemelos fusionados se han descrito desde épocas pre-cristianas 1 y la primera separación exitosa data de 1689 2 . El apelativo de "siameses" se originó en la historia de dos hermanos fusionados nacidos en Siam en 1811, quienes se casaron con dos hermanas, vivieron 63 ...
... Report of one case. Drs. RICARDO YÁÑEZ M. 1 , XIMENA PARADA D. 2 , MARIO DA VENEZIA R. 2 , In... more ... Report of one case. Drs. RICARDO YÁÑEZ M. 1 , XIMENA PARADA D. 2 , MARIO DA VENEZIA R. 2 , Int. ... En laparotomía exploradora se encuentra un vólvulo y dilatación del intestino delgado en relación a una malformación vascular y lesiones multilobuladas en mesenterio. ...
... Drs. RICARDO YÁÑEZ M. 1 , CRISTIAN GAMBOA C. 1 , JORGE MARTÍNEZ C. 1 , ERIC ORELLANA U. 2 , J... more ... Drs. RICARDO YÁÑEZ M. 1 , CRISTIAN GAMBOA C. 1 , JORGE MARTÍNEZ C. 1 , ERIC ORELLANA U. 2 , JOSÉ M. CLAVERO R. 3 , IGNACIO GOÑI E. 4 , JAVIERA TORRES M. 5 ,NICOLÁS JARUFE C. 1. ... Senra GS, Pereira AC, Murilo dos Santos L, Carvalho YR, Brandao AA. ...
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