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1.
J Craniofac Surg ; 2024 May 29.
Artigo em Inglês | MEDLINE | ID: mdl-38810244

RESUMO

Microvascular reconstruction of the scalp is frequently indicated in patients with locally advanced tumors, among other etiologies, in a relatively high-risk, older patient population that often has multiple medical comorbidities. A retrospective analysis was performed on patients undergoing microvascular scalp reconstruction at Emory University Hospital and Grady Memorial Hospital between 2011 and 2021. Patient demographics, wound characteristics, operative details, and complications were recorded. Statistical analysis using univariate and multivariate models was performed. Forty-two patients underwent 45 microvascular scalp reconstructive procedures during the study period. The median age was 63 years. Wounds were predominantly oncologic (n=38, 84.4%) and frequently involved deeper structures [calvarium (n=38, 84.4%), dura (n=17, 37.8%)]. At a median follow-up of 350 days, 33 patients (73.3%) had healed flaps, 9 (20.0%) had wound healing issues but ultimately successful reconstruction, and 3 (6.7%) experienced flap failure. Most patients (n=33, 80.9%) were discharged home or to a rehabilitation facility, while the remaining 8 patients (19.1%) were discharged to hospice or died. The 30-day mortality was 4 patients (8.9%) and the 6-month mortality was 8 patients (20.5%). There was a statistically significant difference in 30-day mortality (P=0.0001) on univariate analysis and 6-month mortality (P=0.003) on both univariate and multivariate analysis for patients >70 years. While age >70 years is a risk factor for mortality in patients undergoing microvascular scalp reconstruction, mortality was commonly related to underlying disease processes rather than complication of surgery. Microvascular reconstruction for scalp defects has a high success rate and can be offered as a palliative procedure for patients with locally advanced cancers, advanced age, and multiple comorbidities.

2.
Plast Reconstr Surg Glob Open ; 12(3): e5667, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38515556

RESUMO

Background: Nipple areolar complex (NAC) reconstruction often signifies completion of the breast reconstruction process for some patients and has been shown to improve both psychosocial and sexual well-being. Several techniques have been described; however, there currently exists little evidence in the literature describing outcomes or patient satisfaction. Methods: A retrospective analysis of NAC reconstructions over the last decade was queried for patient demographics, operative technique, and postoperative outcomes. A standardized, validated survey was also utilized to evaluate overall satisfaction, with a focus on aesthetic outcome, shape, color, and projection. Results: Eighty-three patients were identified, with 49 (59.0%) completing the survey. The modalities used for reconstruction include the C-V flap (45.7%), the modified skate flap technique (42.2%), and free nipple grafting (FNG, 12.0%). No significant differences in age, BMI, or comorbidities were found among the three types. The most utilized donor site for skate flap reconstruction was the suprapubic area (37.1%). There were also no significant differences in complication rate (C-V 10.5%, FNG 10%, skate 5.7%, P = 0.630) or revision surgery (C-V 2.6%, FNG 0%, skate 5.7%, P = 0.732). The most common complication was nipple necrosis. Adjusting for time to follow-up using multivariate analysis, there was a significant difference in overall patient satisfaction when compared across all three techniques, with the modified skate flap having the highest mean overall satisfaction scores. Conclusions: NAC reconstruction can be completed safely and effectively with a variety of techniques. The modified skate flap technique was associated with high levels of patient satisfaction and a low complication rate.

3.
Ann Plast Surg ; 91(1): 55-61, 2023 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-37450861

RESUMO

BACKGROUND: Advanced age is considered by many to be a relative contraindication to breast reconstruction. However, despite increased medical comorbidities and a perception that elderly patients are less concerned with body image, more women older than 70 years are choosing to undergo breast reconstruction. There is a paucity of data to guide reconstructive decision-making and counseling in this population. OBJECTIVES: The aim of this study was to evaluate patient satisfaction, complication rates, and long-term outcomes in women older than 70 years undergoing implant-based breast reconstruction. METHODS: A total of 400 patients were identified at the authors' institution and divided into 2 groups: ≥70 and <70 years old. Medical comorbidities, surgical outcomes, and patient-reported outcomes as defined by the BREAST-Q were compared using the χ2 tests for categorical variables and t tests for continuous variables. RESULTS: The cohort of patients older than 70 years was made up of 25 women, with a mean age of 73 years, and the cohort of patients younger than 70 years was made up of 375 women, with a mean age of 50 years. There was no significant difference in body mass index (P = 0.373), smoking status (P = 0.360), or history of prior ipsilateral radiation (P = 0.508) between the 2 cohorts; however, the elderly cohort was significantly more likely to have diabetes (P = 0.026). Although elderly patients were less likely to undergo bilateral mastectomy (P < 0.001), there was no significant difference in the type of mastectomy, pathological diagnosis, or method of reconstruction. There was no significant difference in complication rates when looking at minor infection (P = 0.553) or major infection (P = 0.553). The 2 groups were equally likely to undergo secondary procedures (P = 0.192). Overall satisfaction rates were high in all BREAST-Q categories in the elderly group and not significantly different when compared with the group of patients younger than 70 years. Matched-pair analysis showed a significant difference with the group of patients older than 70 years having higher levels physical well-being (P < 0.001). CONCLUSIONS: Immediate breast reconstruction can be performed safely and with similar high satisfaction rates in the elderly population as their younger counterparts. Age alone should not be used as a reason for excluding women from these life-changing operations.


Assuntos
Implantes de Mama , Neoplasias da Mama , Mamoplastia , Humanos , Feminino , Idoso , Pessoa de Meia-Idade , Mastectomia/efeitos adversos , Neoplasias da Mama/cirurgia , Neoplasias da Mama/complicações , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/etiologia , Mamoplastia/métodos , Medidas de Resultados Relatados pelo Paciente , Implantes de Mama/efeitos adversos
4.
Plast Reconstr Surg ; 152(6): 1175-1184, 2023 12 01.
Artigo em Inglês | MEDLINE | ID: mdl-37010468

RESUMO

BACKGROUND: Implant-based breast reconstruction (IBBR) is a complex process with significant practice variability. Infections after IBBR are associated with higher rates of readmission, reoperation, and reconstructive failure. To reduce process variability and postoperative infections, the authors implemented an evidence-based, standardized protocol for IBBR. METHODS: The protocol was applied to all patients undergoing IBBR at a single institution from December of 2019 to February of 2021. Intraoperative protocol adherence was recorded, and infection events were considered minor (managed with outpatient antibiotics) or major (managed with readmission or reoperation). A historic control group was retrospectively analyzed for comparison. RESULTS: Sixty-nine patients (120 breasts) in the protocol group were compared with 159 patients (269 breasts) in the retrospective group. No differences were found in demographic characteristics, comorbidities, or type of reconstruction (expander versus implant). Intraoperative protocol adherence was 80.5% (SD, 13.9%). Overall infection rate was significantly lower in the protocol group versus controls (8.7% versus 17.0%; P < 0.05). When dichotomized, protocol patients had a lower rate of both minor (2.9% versus 5.7%; P = 0.99) and major (5.8% versus 11.3%; P = 0.09) infections, although this was not statistically significant. Rate of reconstructive failure secondary to infection was significantly lower in the protocol group (4.4% versus 8.8%; P < 0.05). Among protocol patients, those without infection had higher protocol adherence (81.5% versus 72.2%; P < 0.06), which neared statistical significance. CONCLUSION: A standardized perioperative protocol for IBBR reduces process variability and significantly decreases rate of overall infections and reconstructive failure secondary to infection. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, III.


Assuntos
Implantes de Mama , Neoplasias da Mama , Mamoplastia , Mastite , Feminino , Humanos , Implantes de Mama/efeitos adversos , Estudos Retrospectivos , Mastectomia/métodos , Mamoplastia/efeitos adversos , Mamoplastia/métodos , Mama/cirurgia , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/prevenção & controle , Neoplasias da Mama/cirurgia
6.
J Craniofac Surg ; 33(6): e647-e652, 2022 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-36054899

RESUMO

Syndrome of the trephined (SoT) is a severe complication following decompressive craniectomy resulting in neurological decline which can progress to aphasia, catatonia, and even death. While cranioplasty can reverse neurological symptoms of SoT, awareness of SoT is poor outside of the neurosurgery community. The authors performed a systematic review of the literature on SoT with a focus on reconstructive implications. Search terms "syndrome of the trephined" and "sunken flap syndrome" were applied to PubMed to identify primary studies through October 2021. Full-text review yielded 11 articles discussing SoT and reconstructive techniques or implications with 56 patients undergoing cranial reconstruction. Average age of the patients was 41.8±9.5 years. Sixty-three percent of the patients were male. The most common indication for craniectomy was traumatic brain injury (43%), followed by tumor resection (23%), intracerebral hemorrhage (11%), and aneurysmal subarachnoid hemorrhage (2%). Patients most commonly suffered from motor deficits (52%), decreased wakefulness (30%), depression or anxiety (21%), speech deficits (16%), headache (16%), and cognitive difficulties (2%). Time until presentation of symptoms following decompression was 4.4±8.9 months. Patients typically underwent cranioplasty with polyetheretherketone (48%), titanium mesh (21%), split thickness calvarial bone (16%), full thickness calvarial bone (14%), or split thickness rib graft (4%). Eight percent of patients required free tissue transfer for soft tissue coverage. Traumatic Brain Injury (TBI) was a risk factor for development of SoT when adjusting for age and sex (odds ratio: 8.2, 95% confidence interval: 1.2-8.9). No difference significant difference was observed between length until initial improvement of neurological symptoms following autologous versus allograft reconstruction (P=0.47). SoT can be a neurologically devastating complication of decompressive craniectomy which can resolve following urgent cranioplasty. Familiarity with this syndrome and its reconstructive implications is critical for the plastic surgery provider, who may be called upon to assist with these urgent cases.


Assuntos
Lesões Encefálicas Traumáticas , Craniectomia Descompressiva , Implantes Dentários , Procedimentos de Cirurgia Plástica , Adulto , Lesões Encefálicas Traumáticas/complicações , Lesões Encefálicas Traumáticas/cirurgia , Craniectomia Descompressiva/métodos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/cirurgia , Procedimentos de Cirurgia Plástica/métodos , Estudos Retrospectivos , Crânio/cirurgia , Síndrome
7.
Plast Reconstr Surg Glob Open ; 10(3): e4208, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-35350150

RESUMO

Infection following implant-based breast reconstruction (IBBR) results in increased rates of hospital readmission, reoperation, patient and hospital expenses, and reconstructive failure. IBBR is a complex, multistep procedure, and there is a relative lack of high-quality plastic surgery evidence regarding "best practices" in the prevention of implant infections. In the absence of strong data, standardizing procedures based on available evidence can reduce error and improve efficacy and outcomes. Methods: We performed a focused literature review of the available evidence supporting specific interventions for infection prevention in the preoperative, intraoperative, and postoperative phases of care that are applicable to IBBR. In addition, we examined previously published standardized perioperative protocols for implant reconstruction. Results: Preoperative, intraoperative, and postoperative planning and organization is crucial in IBBR. Preoperative planning involves skin decolonization in advance of surgery with either chlorhexidine gluconate or mupirocin. Intraoperative methods that have shown potential benefit include double-gloving, breast pocket irrigation, separate closing instruments, and the utilization of "no-touch" techniques. In the postoperative period, the duration of drain removal and postoperative antibiotic administration play an important role in the prevention of surgical site infection. Conclusions: There is a crucial need to establish an evidence-based set of "best practices" for IBBR, and there exists a paucity of evidence in the breast literature. These data can be utilized to develop a standardized protocol as part of a rigorous quality improvement methodology.

11.
J Craniofac Surg ; 32(1): 297-299, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-32969927

RESUMO

ABSTRACT: Syndrome of the Trephined (SoT) is a severe complication following decompressive craniectomy. Urgent cranioplasty fully reverses the neurologic symptoms of SoT. This article presents a recent case of SoT following inflation of a scalp tissue expander.A review of the literature was performed and case details obtained from the electronic medical record. Our patient had a large craniectomy defect following traumatic brain injury. A scalp tissue expander was used before secondary cranioplasty. The patient suffered severe neurologic decline temporally related to tissue expander inflation, which was fully reversed following expander removal and urgent cranioplasty.SoT can be a neurologically devastating complication which can resolve following urgent cranioplasty. To our knowledge, this is the first description of SoT resulting from inflation of a scalp tissue expander. Familiarity with this syndrome is critical for the plastic surgery provider, who may be called upon to assist with these urgent cases.


Assuntos
Craniectomia Descompressiva , Couro Cabeludo , Humanos , Complicações Pós-Operatórias/cirurgia , Couro Cabeludo/cirurgia , Crânio/cirurgia , Dispositivos para Expansão de Tecidos
13.
Am Surg ; 84(6): 959-962, 2018 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-29981631

RESUMO

The goal in abdominal wall reconstruction (AWR) is to minimize morbidity and prevent hernia recurrence. Components separation and mesh reconstruction are two options, however, with advantages and disadvantages. The purpose of this review was to investigate outcomes in patients with abdominal wall hernia undergoing primary closure with component separation (CS) versus CS with acellular dermal matrix (ADM) reinforcement (CS + mesh). Medical records of consecutive patients who underwent abdominal wall reconstruction using CS with or without ADM reinforcement were retrospectively reviewed. Primary fascial closure was achieved in all patients. ADM reinforcement when used was performed using the underlay technique. Reconstructive technique and postoperative complications including delayed healing, skin necrosis, fistula, seroma, hematoma and surgical site infection, recurrence, and reoperation were recorded. Comparisons between the two groups were assessed. One hundred and seven patients were included (mean age, 55.7; 51.4% male; median follow-up 297 days). Twenty-six patients (24%) underwent CS alone; whereas 81 patients (76%) CS + mesh placement. Patient comorbidities, including smoking (26%), diabetes (20%), and hypertension (46%); body mass index (mean 32.3 ± 7.6); and albumin level on the day of surgery (mean 3.4 ± 0.5 mg/dL) were not significantly different between groups. Surgical site infection was significantly higher among CS + mesh patients (22.2%) versus CS only patients (3.9%) (P = 0.02). The recurrence rate of abdominal hernia was significantly lower in CS + mesh patients compared with CS only (14.8% vs 34.6%; P = 0.02). No significant differences in other postoperative complications were identified between the two groups. ADM reinforcement at the time of components separation is often selected in more complex, higher risk patients. Although the incidence of infection was higher in these patients, it was usually treated without mesh removal and recurrence rate was significantly lower when compared to CS alone.


Assuntos
Parede Abdominal/cirurgia , Técnicas de Fechamento de Ferimentos Abdominais , Hérnia Ventral/cirurgia , Herniorrafia/métodos , Telas Cirúrgicas , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Resultado do Tratamento
14.
J Craniofac Surg ; 28(8): 1960-1965, 2017 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-28938329

RESUMO

BACKGROUND: Mycobacterium abscessus has been implicated as the cause of various infections in the setting of healthcare-related "outbreaks." Mandibular osteomyelitis caused by M abscessus is exceedingly rare, with only 1 patient reported in the literature. The authors describe the surgical management of 12 pediatric patients with M abscessus-related mandibular osteomyelitis and cervical lymphadenitis caused by exposure to contaminated water at a regional dental clinic. METHODS: Following institutional review board approval, new suspected patients were reviewed and followed prospectively. A multidisciplinary team coordinated the surgical approach, antibiotic regimen, and follow-up for each patient. RESULTS: Twelve patients (median age 7.5 years) received treatment of M abscessus infection. Eleven had mandibular osteomyelitis and underwent debridement along with extraction of affected teeth. Eight had lymphadenitis and underwent excision of involved nodes. Four patients (in whom surgical debridement was considered inadequate) received antibiotic therapy with a regimen of amikacin, cefoxitin, and azithromycin for 4 months. Nine of 12 patients have been followed for a median of 5 months (range 1-11 months); no patient has evidence of persistent clinical infection. Three of 4 patients treated with amikacin have high-frequency hearing loss. CONCLUSIONS: The authors describe a pediatric cohort with mandibular osteomyelitis and cervical lymphadenitis due to M abscessus following pulpotomy at a single dental clinic. Diagnosis required a high index of suspicion. Patients in our series had resolution of infection even without antibiotic therapy, suggesting that early complete surgical debridement and removal of affected lymph nodes can be sufficient as a sole treatment modality.


Assuntos
Antibacterianos , Desbridamento/métodos , Linfadenite , Doenças Mandibulares , Mycobacterium abscessus/isolamento & purificação , Osteomielite , Antibacterianos/administração & dosagem , Antibacterianos/efeitos adversos , Criança , Estudos de Coortes , Feminino , Humanos , Linfadenite/diagnóstico , Linfadenite/microbiologia , Linfadenite/cirurgia , Masculino , Doenças Mandibulares/diagnóstico , Doenças Mandibulares/tratamento farmacológico , Doenças Mandibulares/microbiologia , Doenças Mandibulares/cirurgia , Infecções por Mycobacterium não Tuberculosas/diagnóstico , Infecções por Mycobacterium não Tuberculosas/tratamento farmacológico , Infecções por Mycobacterium não Tuberculosas/cirurgia , Osteomielite/diagnóstico , Osteomielite/tratamento farmacológico , Osteomielite/microbiologia , Osteomielite/cirurgia , Avaliação de Processos e Resultados em Cuidados de Saúde
16.
Ann Plast Surg ; 76 Suppl 4: S295-7, 2016 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-26808768

RESUMO

BACKGROUND: The management of complex abdominal wall defects continues to be a challenging process secondary to the high potential for wound healing issues and ventral hernia recurrences. Body mass index (BMI) is a well-known risk factor when it comes to complications. We hypothesize that higher BMIs result in higher rates of postoperative complications in complex abdominal wall reconstructions (CAWRs). METHODS: We retrospectively reviewed all patients who underwent CAWR at Emory University Hospital over a 12-year period. Patients were divided into 4 cohorts based on BMI (15-24.9, 25-29.9, 30-34.9, and ≥35 kg/m). Complication rates among the 4 groups were evaluated as the primary outcome using Pearson χ analysis. Further analysis was done on specific complications including mesh exposure, skin necrosis, delayed healing, rate of fistula formation, seroma, hematoma, infection, rate of recurrence, and rate of reoperation. RESULTS: We included 313 patients with a mean follow-up of 15.6 months. The rate of overall complications demonstrated a nonsignificant increase with BMI of 15 to 24.9, 25 to 29.9, 30 to 34.9, and 35 kg/m or greater (31.7%, 35.0%, 47.6%, and 48.3%; P = 0.079, respectively). The rate of skin necrosis was significantly increased in the higher BMI groups (1.7%, 1.3%, 9.5%, and 13.5%; P = 0.004). The rate of ventral hernia recurrence was significantly increased in the higher BMI groups (8.3%, 12.5%, 29.8%, and 27.0%; P = 0.002). Rates of reoperation were also statistically increased in the higher BMI groups (25.0%, 22.5%, 41.7%, and 34.8%; P = 0.035). Rates of mesh exposure, delayed healing, fistula formation, seroma, hematoma, and infection were not statistically significant among the 4 BMI groups. CONCLUSIONS: Patients undergoing CAWR with BMIs greater than 30 kg/m have significantly higher rates of skin necrosis, hernia recurrence, and reoperation compared with subgroups of lower BMI. Rates of overall complications among all BMI groups are similar, although trended up with BMI. Surgeons should weight the risks and benefits of CAWR in patients with higher BMIs to reduce specific postoperative complications.


Assuntos
Parede Abdominal/cirurgia , Índice de Massa Corporal , Hérnia Ventral/cirurgia , Herniorrafia , Complicações Pós-Operatórias/etiologia , Adulto , Idoso , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/epidemiologia , Estudos Retrospectivos , Fatores de Risco , Resultado do Tratamento
17.
J Oral Maxillofac Surg ; 73(12 Suppl): S153-4, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26608146

RESUMO

For oral and maxillofacial surgery to continue being a premier specialty in the management of patients with craniomaxillofacial conditions, contributions to the better treatment of these patients must be continuously offered. Without performing the science, these offerings will not come or will not be valid. Environmental and funding challenges to performing the science have increased in the past 2 decades. The incorporation of protected research time and a research sabbatical for residents within their training program might be effective ways to meet these challenges.


Assuntos
Pesquisa em Odontologia , Internato e Residência , Cirurgia Bucal , Competência Clínica , Currículo , Pesquisa em Odontologia/economia , Odontologia Baseada em Evidências , Humanos , Apoio à Pesquisa como Assunto , Cirurgia Bucal/economia , Cirurgia Bucal/educação , Apoio ao Desenvolvimento de Recursos Humanos
18.
Ann Thorac Surg ; 97(3): 858-64; discussion 864, 2014 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-24315406

RESUMO

BACKGROUND: The current economic environment necessitates efforts to prevent avoidable losses in clinical revenue in academic cardiothoracic surgery programs. Inadequate documentation frequently results in delayed, denied, or reduced reimbursement. With the recent increase in integrated residency programs, documentation and compliance are becoming increasingly dependent on junior residents; however, their understanding of reimbursement and documentation guidelines is currently unknown. METHODS: An electronically distributed, multi-institutional survey of 6 general and subspecialty surgery programs was conducted consisting of open-ended numeric estimation of Medicare reimbursement for various levels of patient encounters. Closed-ended questions were used to assess resident knowledge of documentation requirements, accompanied by self-estimated compliance with those requirements. RESULTS: Thirty-seven percent (n = 106) of residents completed the survey. Most residents (77%) believe they play the primary role in documentation; however, knowledge of and compliance with higher level documentation practices range from 19% to 78% and 41% to 76%, respectively. On average, residents overestimate Medicare reimbursement of lower level encounters by as much as 77% and underestimate higher level encounters by as much as 38%. In many cases, the standard deviation of residents' estimates approaches the actual reimbursement value. CONCLUSIONS: Residents have a limited knowledge of documentation requirements. Self-reported compliance, even when guidelines are known, is low. Estimation of financial reimbursement is extremely variable. Residents overestimate reimbursement of lower level encounters and underappreciate reimbursement at higher levels. Ensuring appropriate reimbursement for services rendered will require formal cardiothoracic resident education and ongoing quality control.


Assuntos
Documentação , Conhecimentos, Atitudes e Prática em Saúde , Internato e Residência , Mecanismo de Reembolso , Especialidades Cirúrgicas , Inquéritos e Questionários , Estados Unidos
19.
J Clin Invest ; 120(12): 4520-31, 2010 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-21099108

RESUMO

Outcomes in transplantation have been limited by suboptimal long-term graft survival and toxicities associated with current immunosuppressive approaches. T cell costimulation blockade has shown promise as an alternative strategy to avoid the side effects of conventional immunosuppressive therapies, but targeting CD28-mediated costimulation alone has proven insufficient to prevent graft rejection in primates. Donor-specific memory T (TM) cells have been implicated in costimulation blockade-resistant transplant rejection, due to their enhanced effector function and decreased reliance on costimulatory signaling. Thus, we have tested a potential strategy to overcome TM cell-driven rejection by targeting molecules preferentially expressed on these cells, such as the adhesion molecule lymphocyte function-associated antigen 1 (LFA-1). Here, we show that short-term treatment (i.e., induction therapy) with the LFA-1-specific antibody TS-1/22 in combination with either basiliximab (an IL-2Rα-specific mAb) and sirolimus (a mammalian target of rapamycin inhibitor) or belatacept (a high-affinity variant of the CD28 costimulation-blocker CTLA4Ig) prolonged islet allograft survival in nonhuman primates relative to control treatments. Moreover, TS-1/22 masked LFA-1 on TM cells in vivo and inhibited the generation of alloproliferative and cytokine-producing effector T cells that expressed high levels of LFA-1 in vitro. These results support the use of LFA-1-specific induction therapy to neutralize costimulation blockade-resistant populations of T cells and further evaluation of LFA-1-specific therapeutics for use in transplantation.


Assuntos
Anticorpos Monoclonais/uso terapêutico , Anticorpos Neutralizantes/uso terapêutico , Sobrevivência de Enxerto/imunologia , Antígeno-1 Associado à Função Linfocitária/imunologia , Animais , Diferenciação Celular/imunologia , Diabetes Mellitus Experimental/imunologia , Diabetes Mellitus Experimental/patologia , Diabetes Mellitus Experimental/terapia , Humanos , Memória Imunológica , Terapia de Imunossupressão/métodos , Transplante das Ilhotas Pancreáticas/imunologia , Transplante das Ilhotas Pancreáticas/patologia , Antígeno-1 Associado à Função Linfocitária/metabolismo , Macaca mulatta , Subpopulações de Linfócitos T/citologia , Subpopulações de Linfócitos T/imunologia , Doadores de Tecidos , Transplante Homólogo
20.
Reg Anesth Pain Med ; 35(4): 370-6, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-20588151

RESUMO

BACKGROUND: Both postoperative epidural analgesia and intravenous (IV) infusion of local anesthetic have been shown to shorten ileus duration and hospital stay after colon surgery when compared with the use of systemic narcotics alone. However, they have not been compared directly with each other. METHODS: Prospective, randomized clinical trial was conducted comparing the 2 treatments in open colon surgery patients. Before induction of general anesthesia, patients were randomized either to epidural analgesia (bupivacaine 0.125% and hydromorphone 6 microg/mL were started at 10 mL/hr within 1 hr of the end of surgery) or IV lidocaine (1 mg/min in patients < 70 kg, 2 mg/min in patients > or = 70 kg). Markers of return of bowel function, length of stay, postoperative pain scores, systemic analgesic requirements, and adverse events were recorded and compared between the 2 groups in an intent-to-treat analysis. RESULTS: Study enrollment took place from April 2005 to July 2006. Twenty-two patients were randomized to IV lidocaine therapy and 20 patients to epidural therapy. No statistically significant differences were found between groups in time to return of bowel function or hospital length of stay. The median pain score difference was not statistically significant. No statistically significant differences were found in pain scores for any specific postoperative day or in analgesic consumption. CONCLUSIONS: No differences were observed between groups in terms of return of bowel function, duration of hospital stay, and postoperative pain control, suggesting that IV infusion of local anesthetic may be an effective alternative to epidural therapy in patients in whom epidural anesthesia is contraindicated or not desired.


Assuntos
Analgesia Epidural , Anestésicos Locais/administração & dosagem , Bupivacaína/administração & dosagem , Colectomia/efeitos adversos , Íleus/tratamento farmacológico , Tempo de Internação , Lidocaína/administração & dosagem , Dor Pós-Operatória/prevenção & controle , Adulto , Analgésicos/uso terapêutico , Anestésicos Locais/efeitos adversos , Bupivacaína/efeitos adversos , Feminino , Motilidade Gastrointestinal/efeitos dos fármacos , Humanos , Íleus/etiologia , Íleus/fisiopatologia , Infusões Intravenosas , Lidocaína/efeitos adversos , Masculino , Pessoa de Meia-Idade , Medição da Dor , Dor Pós-Operatória/etiologia , Estudos Prospectivos , Recuperação de Função Fisiológica , Fatores de Tempo , Resultado do Tratamento , Virginia
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