Robotic Harvest of a Rectus Abdominis Muscle Flap After Abdominoperineal Resection.

INTRODUCTION: As multidisciplinary treatment modalities for rectal cancer continue to evolve, neoadjuvant chemoradiation then surgical resection is a common approach. Robotic-assisted abdominoperineal resection is becoming more prevalent in part because of better visualization and instrument mobility within the pelvis. After abdominoperineal resection, postoperative perineal wound complications remain a significant risk. Pelvic reconstruction lowers this risk, and a pedicled rectus abdominis muscle flap is frequently used to achieve this. Traditional flap harvest requires laparotomy, resulting in violation of both rectus sheaths and a large midline scar. Robotic harvest of the rectus abdominis muscle for pelvic reconstruction after abdominoperineal resection is a novel approach with foreseeable benefits. TECHNIQUE: After completion of abdominoperineal resection, 2 additional trocars are inserted in the lateral abdomen, and the robot is reoriented toward the posterior abdominal wall. The peritoneum and posterior rectus sheath are incised, and dissection is carried superiorly and inferiorly in a sagittal plane to reveal the rectus abdominis muscle. The muscle body is separated from the anterior rectus sheath. Once the inferior epigastric artery is identified, the superior pole of the muscle is transected. Continued lateral dissection ensures flap mobility for placement within the pelvis. After obtaining proper reach, the robot is undocked, and the flap is sutured in place through the perineal defect. RESULTS: After trocar placement and robot repositioning, both the colorectal and plastic surgeons trade places at the console. Robotic flap harvest precludes the need for laparotomy. The anterior rectus sheath remains unviolated and the patient avoids an additional midline scar. The aforementioned benefits of robot-assisted abdominoperineal resection, namely increased visualization and maneuverability, were also found applicable when robotically harvesting this flap. CONCLUSIONS: This technique exemplifies an additional minimally invasive technique for patients pursuing abdominoperineal resection. With knowledge of this novel approach, surgeons can better tailor their operations to benefit the patient.

Pleuroperitoneal (Denver) Shunt for Recurrent Nonmalignant Breast Seroma in a Metastatic Breast Cancer Patient.

Pleuroperitoneal (Denver) shunts have been used primarily for palliation of refractory malignant and chylous peritoneal and pleural collections.1-5 We used a pleuroperitoneal (Denver) shunt for a recurrent, nonmalignant breast seroma in the palliation of metastatic breast cancer as a novel use of this shunt.

New Perspectives in Surgical Marking Since the Advent of Infrared Laser Angiography.

INTRODUCTION: This study investigates the utility of common surgical dyes under direct visualization and infrared laser angiography. METHODS: Pigments affecting light within the visual (λ = 400-700 nm) and infrared (λ = 700-1000 nm) spectra were placed on subjects spanning the Fitzpatrick scale. Photometric properties of these pigments were assessed under direct visualization and infrared laser angiography. RESULTS: Among patients of various Fitzpatrick classifications, black ink pigment and pigment within the violet spectrum (λ = 380-450 nm) were most distinguishable under direct visualization. Colored inks, gentian violet and methylene blue dyes, were not visualized under infrared laser angiography. Black permanent ink appeared under both direct visualization and infrared laser angiography. Indocyanine green suspended in ethyl alcohol and applied to skin as a marking pen appeared clear under direct visualization and was detectable under infrared laser angiography. CONCLUSIONS: Black permanent marking ink allows visualization of surgical markings under infrared laser angiography, whereas gentian violet and methylene blue did not interfere with infrared visualization. Indocyanine green suspended in ethyl alcohol is a contemporary marking pen that may be used to outline anatomical surface landmarks under infrared laser angiography.

A Newly Described, Highly Prevalent Arterial Pedicle Perfuses Both Gracilis and Profunda Artery Perforator Flap Tissues: An Angiographic Study of the Medial Thigh.

BACKGROUND: Novel secondary flap options are paramount for patients who are not candidates for common reconstructive methods. The purpose of this study is to identify the prevalence of single arterial pedicle supplying both the gracilis muscle and medial thigh tissue carried in a profunda artery perforator (PAP) flap. Such a pedicle could allow the creation of a chimeric gracilis and PAP flap with a single-arterial anastomosis. METHODS: We conducted a retrospective review of 157 lower extremity computed tomography (CT) angiograms to assess the vasculature of the thigh soft tissues. Imaging evaluation was supervised by a board-certified musculoskeletal radiologist. RESULTS: Prevalence of a single-arterial pedicle to a gracilis and PAP flap in each patient was 59% (31% within the right leg and 28% in the left leg). Furthermore, 16% of patients had a common arterial pedicle in both lower extremities. CONCLUSION: Existence of a single-arterial pedicle to both the gracilis muscle and PAP flap tissues is frequently present in most patients in at least one lower extremity. This chimeric flap configuration could serve as a reconstructive avenue for patients, particularly those who have exhausted other more common flap options. Screening angiography is warranted in patients looking for this anatomic variation to establish its presence.

Immediate versus Delayed Sarcoma Reconstruction: Impact on Outcomes.

Background. Sarcoma is a rare malignancy, and more recent management algorithms emphasize a multidisciplinary approach and limb salvage, which has resulted in an increase in overall survival and limb preservation. However, limb salvage has resulted in a higher rate of wound complications. Objective. To compare the complications between immediate and delayed (>three weeks) reconstruction in the multidisciplinary limb salvage sarcoma patient population. Methods. A ten-year retrospective review of patients who underwent sarcoma resection was performed. The outcome of interest was wound complication in the postoperative period based on timing of reconstruction. We defined infection as any infection requiring intravenous antibiotics, partial flap failure as any flap requiring a debridement or revision, hematoma/seroma as any hematoma/seroma requiring drainage, and wound dehiscence as a wound that was not completely intact by three weeks postoperatively. Results. 70 (17 delayed, 53 immediate) patients who underwent sarcoma resection and reconstruction met the inclusion criteria. Delayed reconstruction significantly increased the incidence of postoperative wound infection and wound dehiscence. There was no difference in partial or total flap loss, hematoma, or seroma between the two groups. Discussion and Conclusion. Immediate reconstruction results in decreased wound complications may reduce the morbidity associated with multidisciplinary treatment in the limb salvage sarcoma patient.

Intradermal botulinum toxin a for peristomal hyperhidrosis: a case study.

BACKGROUND: Peristomal hyperhidrosis can interfere with pouch adherence, resulting in pouch leakage and peristomal skin damage. CASE: A patient with autonomic dysregulation resulting in excessive sweating (hyperhidrosis) experienced difficulty with adherence of her ileostomy appliance. Two hundred units of botulinum toxin A (BTX-A) were injected in the dermis of the surrounding skin in order to improve adherence of her pouching system and alleviate moisture of her peristomal skin. RESULTS: Following BTX-A injection, the typical wear time of her pouching system improved from less than 24 hours to 120 hours. Peristomal moisture-associated skin damage resolved almost completely. These effects lasted 3 months. A repeat intradermal BTX-A injection had a similar positive effect. CONCLUSION: Peristomal hyperhidrosis can be controlled with BTX-A intradermal injections, improving patient pouch adherence and alleviating moisture-associated skin damage.

Predictive factors of wound complications after sarcoma resection requiring plastic surgeon involvement.

INTRODUCTION: The most effective management of a patient with sarcoma is surgical resection. Often the resection is performed, the wound is irradiated, adjuvant chemotherapy is administered, and the wound is closed without plastic surgery consultation. Wound complications, after these treatment protocols, often require plastic surgery involvement and the treatment may require more advanced reconstructive techniques with higher rates of complications than if involvement occurred earlier. METHODS: A retrospective review of all patients who underwent sarcoma excision from 2001 to 2011 was performed. Factors such as tumor size, radiation, chemotherapy, delayed reconstruction (>3 weeks), and immediate reconstruction (<3 weeks) were analyzed for their correlation with wound complications or flap loss. RESULTS: A total of 127 patients underwent sarcoma resection. Wound complications occurred in 49 (38%) patients. All 15 delayed reconstructions had a wound complication, whereas only 11 (37%) of immediate reconstructions had a wound complication. Wound complications with tissue excision less than 500 g occurred in 18 (26%) patients and occurred in 31 (54%) patients with excision greater than 500 g. Seventy-two patients underwent radiation with a wound complication rate of 46% compared with 29% for patients who were not radiated. Chemotherapy was used in 35 patients with a wound complication rate of 49%. CONCLUSIONS: The most predictive factor of sarcoma complication is whether the procedure was a delayed or immediate reconstruction. The second most predictive factor is the amount of tissue excised, greater than 500 g of tissue excised was associated with significantly higher complication rates. Other aspects of sarcoma treatment that may be correlated with higher incidence of wound complications are radiation and the use of adjuvant chemotherapy. Early plastic surgery involvement can help with preoperative planning and reduce the complication rates in patients with sarcoma resection.