Medidas de prevención de la infección de localización quirúrgica en cirugía general. Documento de posicionamiento de la Sección de Infección Quirúrgica de la Asociación Española de Cirujanos

Surgical site infection is associated with prolonged hospital stay and increased morbidity, mortality and healthcare costs, as well as a poorer patient quality of life. Many hospitals have adopted scientifically-validated guidelines for the prevention of surgical site infection. Most of these protocols have resulted in improved postoperative results. The Surgical Infection Division of the Spanish Association of Surgery conducted a critical review of the scientific evidence and the most recent international guidelines in order to select measures with the highest degree of evidence to be applied in Spanish surgical services. The best measures are: no removal or clipping of hair from the surgical field, skin decontamination with alcohol solutions, adequate systemic antibiotic prophylaxis (administration within 30-60 minutes before the incision in a single preoperative dose; intraoperative re-dosing when indicated), maintenance of normothermia and perioperative maintenance of glucose levels.     

Programa de Reducción de la Infección Quirúrgica del Observatorio de Infección en Cirugía (PRIQ-O). Documento de priorización y consenso Delphi de recomendaciones para la prevención de la infección de localización quirúrgica

Surgical site infection is the most frequent and avoidable complication of surgery, but clinical guidelines for its prevention are insufficiently followed. We present the results of a Delphi consensus carried out by a panel of experts from 17 Scientific Societies with a critical review of the scientific evidence and international guidelines, to select the measures with the highest degree of evidence and facilitate their implementation. Forty measures were reviewed and 53 recommendations were issued. Ten main measures were prioritized for inclusion in prevention bundles: preoperative shower; correct surgical hand hygiene; no hair removal from the surgical field or removal with electric razors; adequate systemic antibiotic prophylaxis; use of minimally invasive approaches; skin decontamination with alcoholic solutions; maintenance of normothermia; plastic wound protectors-retractors; intraoperative glove change; and change of surgical and auxiliary material before wound closure.     

Consecuencias renales de la hipertensión intraabdominal en modelo porcino. Búsqueda de la técnica indirecta de elección de la medida de la presión intraabdominal

ObjectiveTo study the effects on the renal system in a porcine model of intraabdominal hypertension, and to determine the indirect technique of choice for determination of the intraabdominal pressure.Material and methods30 pigs were used divided in two groups according with increased intraabdominal pressure values (20 mm Hg and 30 mm Hg). In both groups pressures were registered 8 times, summing up to 3 hours, with a CO₂ insufflator. Three different measures of the intraabdominal pressure were taken: a direct transperitoneal measure, using a catheter of Jackson-Pratt connected to a pressure transducer, and two indirect measures, a transvesical by means of a Foley to manometer system, and a transgastric by introducing in the stomach a catheter connected to a pressure monitor with electronic hardware. Mean arterial pressure was calculated, along with the cardiac index, production of urine and serum creatinine.ResultsThere was a greater correlation between the transvesical and the transperitoneal intraabdominal pressures (R² = 0,95). Average transgastric intraabdominal pressure was inferior to the transperitoneal indicator in all taken measurements. The average arterial pressure descended in both groups, with earlier significant differences observed at 30 mm Hg (p < 0,020). Urine production was lower at 30 mm Hg compared with the 20 mm Hg group (9,63 ± 1,57 versus 3.26 ml ± 1,73). Serum creatinine increased in both groups being pathological at 30 mm Hg after 1 h 20 min, with existing differences between early pressures (p < 0,027).ConclusionsThis study revealed marked renal affectation with higher severity at 30 mmHg pressures. The transvesical technique showed a greater correlation with the direct measurement technique used, defining this as the method of choice for determination of intraabdominal pressure.     

Impacto de la resección no planificada y la reintervención de sarcomas de partes blandas en su pronóstico

IntroductionUp to 40% of all initial operations for soft tissue sarcoma (STS) are unplanned, which would leave residual macroscopic tumor in more than 50% of the cases. The effect this has on local recurrence rate, metastases rate and survival has never been fully established, due to the lack of randomized studies.MethodsRetrospective review of patients with STS treated in our unit between January 2001-January 2016. We classified them whether they had been treated by initial planned or unplanned operation. Outcomes were compared in both groups globally and stage-matched. Endpoints were local recurrence and distant metastases.ResultsTwenty-three patients of STS underwent a planned excision and 16 an unplanned excision, 13 of them underwent further re-excision. 40% of patients with planned excision had an advanced stage in regard to the unplanned excision group which presented earlier stages. 77% of patients with unplanned excision had residual tumor identified after surgical re-excision. Local recurrence rate in the unplanned excision group was considerably higher 73,5% vs. 43,8%. Metastases rate was lower in planned excision group, 45,5% vs 56,3% (P > .05). The recurrence pattern in the unplanned excision group was unstable, with worse outcomes in earlier stages.ConclusionThe unplanned excision of a soft tissue sarcoma may compromise disease local control, with higher rates of local recurrence and metastases, and worse functional out- comes, despite further oncological treatment. We need to recognize the clinical features for malignancy risk in soft tissue lumps for a safe diagnosis to avoid inadequate resections.     

Dislocación testicular. aportación de 2 nuevos casos y revisión de la literatura

We report 2 new cases of testicular luxation. A review of current literature is made. Testis was located inguinal after scrotal trauma in both cases. Early close reduction was unsuccessfully. A delayed reduction was found in one case at the moment of surgery. A surgical replacement of the testis was carried out in the other patient. Follow-up control revealed a benign course in bothTesticular dislocation is a rare complication after scrotal trauma (only 152 cases reported). Physician have to be aware of this possibility following perineal trauma. Oftenly a surgery reduction is required     

Nueva técnica de fijación de dartos en la reparación de hipospadias

ObjectiveThis study investigates the impact of the use of dartos covering to augment the neourethra on functional and cosmetic results. To evaluate a novel technique demonstrating how to fix dartos flap to cover the neourethra as a barrier in hypospadias repair.Patients and methodsThis study comprised 204 male patients with different degree of hypospadias (DPH: 132, coronal hypospadias: 46, MPH: 26). Their ages ranged from 1-23 ys (mean age: 2ys). Penile chordee was in (DPH: 45, coronal hypospadias: 33, MPH: 26). All patients had abnormal downward directed urinary stream. Hypospadias repair was performed by the classic TIP technique in addition to our novel modification of dartos covering. Patients were submitted to 5 years of follow-up including clinical examination of the functional and cosmetic parameters.ResultsSuccess rates were reported in 200 patients, 3 patients had complications with subcoronal urethrocutaneous fistula and one patient with complete repair disruption.ConclusionTriple dartos fixation is a simple technique for all hypospadiologists to minimize urethrocutaneous fistula as common complication of hypospadias repair with good functional and cosmetic results.     

Valor pronóstico de la invasión microvascular en la predicción de la supervivencia en el carcinoma de células renales

ObjectiveTo assess microvascular tumor invasion and other clinical and histological parameters as potential prognostic factors in surgically treated renal cell carcinoma.Materials and methodsSurgical specimens from 238 consecutive patients who underwent radical or partial surgery between 1990 and 2006 were retrospectively evaluated. The series included clinically localized or metastatic renal cell carcinoma (pT1-4; N0-1; M0-1). Disease-free and cancer-specific survival assessments were the end points with median follow-up of 75 months (range 1-189 months). Variables studied included: age, sex, tumor size, TNM 2010 classification, Fuhrman grade, histological subtype and microvascular tumor invasion.ResultsMicrovascular tumor invasion was observed in 79 patients (33,2%) and was significantly associated with age (P = .010), tumor size (P = .000), Fuhrman grade (P = .000), pT stage 2010 (P = .000), N stage 2010 (P = .000) and M stage 2010 (P = .000). Multivariate analyses determined that sex, Fuhrman grade, pT stage 2010 and histological subtipe were independent prognostic factors of disease-free survival, while sex, Fuhrman grade, pT stage 2010, M stage 2010, histological subtype and microvascular invasion were prognostic factors for cancer-specific survival.ConclusionsOur study shows that microvascular tumor invasion is an independent prognostic factor for cancer-specific survival in surgically treated patients with renal cell carcinoma.     

Manejo intraoperatorio de la presión arterial

Intraoperative mean blood pressure of <60-70 mmHg is associated with a higher prevalence of myocardial injury in non-cardiac surgery, acute kidney injury and mortality. Systolic blood pressure of <100 mmHg is also associated with an increase rate of myocardial injury in non-cardiac surgery and mortality.The injury is related to the severity and duration of intraoperative hypotension episode. Avoiding the mean arterial blood pressure to decrease below >30% of baseline, is recommended. It is reasonable to normalize mean blood pressure to baseline values as soon as possible. Baseline blood pressure defined as the usual blood pressure at home or blood pressure in the preoperative assessment. Although the evidence is not conclusive, it is reasonable to avoid the blood pressure to increase >180 mmHg or mean blood pressure >110 mmHg. Importantly, noting that current evidence shows there is a much higher risk of injury associated with a mean blood pressure lower than >30% of baseline, than associated with an increase of systolic blood pressure >180 mmHg.It is reasonable to use low dose of prophylactic vasopressors, as well as, hypnotics with less effect on systemic vascular resistance (etomidate or ketamine) on high risk patients (severe septic shock, severe hypovolemia, severe left or right ventricle systolic impairment) to avoid anesthesia induction-associated hypotension.It is reasonable to attenuate the hemodynamic response associated to laryngoscopy and intubation, with short half-live drugs, in selected patients (chronic hypertension poorly controlled and hypertension in elderly more than 70 years-old).To determine the cause of the hypertension and the presence of problems associated with hypertension might be crucial to choose the best antihypertensive drug and, therefore, leading to the most appropriate hypertension treatment.     

La 8.ª edición de la clasificación AJCC-TNM: nuevas aportaciones a la estadificación del cáncer de la unión esofagogástrica

The new 8th edition of the TNM classification system for esophageal and cardia or esophagogastric junction cancer provides important innovations in the TNM stages. Two classifications are presented, updated by stages, clinical (cTNM) and pathological (pTNM) methods, together with another pathological classification applicable to cases receiving neoadjuvant treatment (ypTNM). There is a notable increase in complexity compared to previous versions, but it is still early to determine whether the current modifications will result in a clear improvement in the prognostic discrimination of survival among the patient groups (which is their main objective), although the initial expectations are favorable.     

Profilaxis de la hernia incisional y utilización de mallas. Revisión narrativa

Incisional hernias are a very common problem, with an estimated incidence around 15-20% of all laparotomies. Evisceration is another important problem, with a lower rate (2.5-3%) but severe consequences for patients. Prevention of both complications is an essential objective of correct patient treatment due to the improved quality of life and cost savings.This narrative review intends to provide an update on incisional hernia and evisceration prevention. We analyze the current criteria for proper abdominal wall closure and the possibility to add prosthetic reinforcement in certain cases requiring it. Parastomal, trocar-site hernias and hernias developed after stoma closure are included in this review.     

Lesión de los cuerpos cavernosos por arma de fuego. Presentación de un caso y revisión de la literatura

Rupture of the corpora cavernosa is a very rare lesion. It occurs most commonly during intercourse. A far more exceptional cause is a gunshot wound; in this case, there are frequently concomitant lesions to other structures. We present the case of a man who suffered a lesion to the corpora cavernosa due to a gunshot and underwent emergency surgery. We reviewed existing literature and verified that the first step in managing a genital gunshot wound is to stabilise the patient, following which we should surgically explore the affected area.     

Contribución de la neuroestimulación a la seguridad en la extubación traqueal tras tiroidectomía total. Estudio prospectivo con electrodos de aguja

Introduction and objectivesBilateral laryngeal paralysis cause serious respiratory complications. In thyroid surgery, neuromonitoring helps in identifying the recurrent laryngeal nerve, reports on its functioning at the end of surgery, supports decision making, and may reduce the risk of bilateral paralysis. Our objective was to estimate the influence of neuromonitoring in operative strategy and extubation safety in total thyroidectomy.MethodsA non-randomized prospective study was conducted on 210 patients undergoing total thyroidectomy (420 laryngeal nerves stimulated included). We collected qualitative neuromonitoring variables (presence or absence of final signal after stimulation of the vagus nerve), and postoperative indirect laryngoscopy (normal motility or paralysis), performed until 3rd day after the surgery.ResultsThe accuracy of the test was 99.5% (95% CI 98.3 to 99.9). The positive predictive value was 100% (95% CI 99.1 to 100), which showed the high ability of neuromonitoring to predict paralysis in case of loss of signal, and the negative predictive value was 99.5% (95% CI 98.3 to 99.9), which indicated its predictive capacity for normal motility when there is a normal signal.ConclusionsIn our group of patients, recurrent laryngeal nerve monitoring was useful in total thyroidectomy as it provided information on the prognosis of laryngeal motility, and helped in making decisions during surgery when there was signal loss. Due to the risk of serious respiratory complications due to bilateral recurrent laryngeal nerve paralysis, we opted for the performing of the 2-stage total thyroidectomy in case of signal loss in the first lobectomy. Thereby, neuromonitoring contributed to the safety of the airway in tracheal extubation, aiding in the prevention of a possible bilateral laryngeal paralysis.     

Hipertensión arterial en el paciente quirúrgico. Adecuación de la medicación y criterios de suspensión

Arterial hypertension (AHT) is a modifiable risk factor for cardiovascular diseases, which may have an impact on perioperative complications, depending on the organ damage suffered by the patient. The perioperative management of treatment of arterial hypertension, is a mainstay in the preoperative assesment prior to any intervention. It doesn’t seem reasonable to delay surgery solely due to blood pressure values, although for patients with BP > 180/110 mmHg, the decision to perform scheduled surgeries should be carefully assessed.