RESUMEN
BACKGROUND: This prospective, randomised, observer-blinded study has been conducted in patients undergoing procedures of the lower extremities to evaluate the time to complete block resolution of 2-chloroprocaine 1% at three intrathecal doses (30, 40 and 50 mg). METHODS: After informed consent, we enrolled 45 male and female patients, aged 18-65 years, ASA score I-II, BMI 18-32 kg/m2, undergoing elective lower limb procedures lasting ≤40 min and with a requested dermatomeric level of sensory block ≥ T12. The patients were randomised in a 1:1:1 ratio to receive Chloroprocaine HCl 1% at one of the three different intrathecal doses (Group 30 = 30 mg, Group 40 = 40 mg or Group 50 = 50 mg). The progression and regression of both sensory and motor blocks were evaluated blindly. Urine and venous blood samples were collected for pharmacokinetic analysis. RESULTS: Times to regression of spinal blocks were 1.76 ± 0.35 h, 2.13 ± 0.46 h and 2.23 ± 0.38 h, in Group 30, 40 and 50 respectively: the 30 mg dose showed a significantly faster resolution of spinal block than the 40 mg (p = 0.034) and the 50 mg (p = 0.006). Time to readiness for surgery was significantly reduced with the dose of 50 mg when compared to dose of 30 mg (p = 0.0259). CONCLUSIONS: The doses of 50 mg and 40 mg yielded a longer resolution of spinal block than the dose of 30 mg. Nevertheless, the dose of 30 mg resulted in a higher secondary failure rate. TRIAL REGISTRATION: Registration of clinical trial: clinicaltrials.gov ( NCT02481505 ).
Asunto(s)
Anestesia Raquidea/métodos , Anestésicos Locales/farmacocinética , Procaína/análogos & derivados , Adolescente , Adulto , Anciano , Relación Dosis-Respuesta a Droga , Femenino , Humanos , Extremidad Inferior , Masculino , Persona de Mediana Edad , Procaína/farmacocinética , Estudios Prospectivos , Método Simple Ciego , Tiempo , Adulto JovenRESUMEN
BACKGROUND: In this randomized, controlled, observer-blinded study, we evaluated analgesia provided by transversus abdominis plane (TAP) block after elective total laparoscopic hysterectomy in terms of reduced postoperative morphine consumption as the primary end point. METHODS: Fifty-two patients were randomly divided into 2 groups: patients in group T (TAP, n = 26) received an ultrasound-guided bilateral TAP block with 40 mL of 0.375% levobupivacaine and morphine patient-controlled analgesia, whereas patients in group C (control, n = 26) received morphine patient-controlled analgesia. Secondary outcomes included pain measurements (Numeric Rating Scale from 0 to 10) during the first 24 hours postoperatively, times to postanesthesia care unit discharge, times to surgical ward discharge, incidence of postoperative nausea and vomiting, functional capacity measurements in terms of 2-minute walking test, and first oral solid intake. RESULTS: Demographic and anthropometric variables were similar in the 2 groups. The total dose of morphine consumed by patients during postanesthesia care unit stay was 6 (0-8) mg in group T vs 8 (5.5-8.5) mg in group C (P = 0.154). Postoperative morphine consumption during the first 24 hours was 10.55 ± 10.24 mg in group C vs 10.73 ± 13.45 mg in group T (P = 0.950). The 95% confidence interval of the difference between means of 24-hour morphine consumption was -7.45 to +7.09. The 2 groups were comparable. There were no significant differences in secondary outcome variables between groups. CONCLUSIONS: TAP block did not reduce morphine consumption during the first postoperative 24 hours after elective total laparoscopic hysterectomy.
Asunto(s)
Músculos Abdominales/inervación , Anestésicos Locales/administración & dosificación , Bupivacaína/análogos & derivados , Histerectomía/efectos adversos , Laparoscopía/efectos adversos , Bloqueo Nervioso/métodos , Umbral del Dolor/efectos de los fármacos , Dolor Postoperatorio/prevención & control , Adulto , Analgesia Controlada por el Paciente/métodos , Analgésicos Opioides/administración & dosificación , Anestésicos Locales/efectos adversos , Bupivacaína/administración & dosificación , Bupivacaína/efectos adversos , Procedimientos Quirúrgicos Electivos , Femenino , Humanos , Histerectomía/métodos , Italia , Levobupivacaína , Persona de Mediana Edad , Morfina/administración & dosificación , Bloqueo Nervioso/efectos adversos , Dimensión del Dolor , Dolor Postoperatorio/diagnóstico , Dolor Postoperatorio/etiología , Dolor Postoperatorio/fisiopatología , Factores de Tiempo , Resultado del TratamientoRESUMEN
PURPOSE OF REVIEW: To explore the recent advances in the use of ultrasound for lower extremity blocks, including approaches to the lumbar and sacral plexus blocks. RECENT FINDINGS: Procedures of the lower extremity often require blocks of the lumbar and sacral plexuses. The use of ultrasound offers some advantages, including the possibility to directly visualize the distribution of local anesthetics. SUMMARY: Lower extremity blocks under ultrasound guidance often require advanced skills because of the depth of target nerves. This review summarizes the recent advances in the use of ultrasound guidance over traditional techniques.
Asunto(s)
Extremidad Inferior/diagnóstico por imagen , Bloqueo Nervioso/métodos , Ultrasonografía Intervencional/métodos , Anestésicos Locales/administración & dosificación , Plexo Braquial/diagnóstico por imagen , HumanosRESUMEN
For many years, non-steroidal inflammatory drugs (NSAIDs) were commonly used in the treatment of acute pain due to inflammation.With the arrival on the market of NSAIDs with selective action on COX-2 there was a reduction of side effects in the stomach, but not eliminating the possible cardiovascular complications. The availability of NSAIDs such self-medication can aggravate this type of problem, it is therefore the clinician a fair and accurate assessment of the risk \ benefit based on the characteristics of the individual patient.
Asunto(s)
Antiinflamatorios no Esteroideos , Inhibidores de la Ciclooxigenasa 2 , Antiinflamatorios/uso terapéutico , Antiinflamatorios no Esteroideos/uso terapéutico , Enfermedades Cardiovasculares , Humanos , Factores de RiesgoRESUMEN
Spinal anaesthesia is an easy and reliable technique. Factors limiting its use in the ambulatory setting include delayed ambulation, risk of urinary retention and pain after block regression. On the contrary, general anaesthesia with fast-acting drugs provides a fast recovery that facilitates an early discharge. Although recovery after spinal anaesthesia has been improved by reducing the dose of the commonly used longacting local anaesthetics, discharge times are still prolonged compared with general anaesthesia. 2-Chloroprocaine is an amino-ester local anaesthetic with a very short half-life and a favourable evolution of spinal block for ultra-short outpatient procedures. Moreover, the preservative free 2-chloroprocaine solution showed a very low risk of urinary retention and transient neurological symptoms when compared with bupivacaine and lidocaine. The aim of this article is to evaluate if the neuraxial administration of short-acting local anaesthetics renders spinal anaesthesia a suitable technique for ultra-short surgical procedures.
Asunto(s)
Anestesia Raquidea , Pacientes Ambulatorios , Procedimientos Quirúrgicos Ambulatorios , Anestésicos Locales , Bupivacaína , Humanos , LidocaínaRESUMEN
The last two decades have seen a significant increase in the number of spine surgical procedures performed worldwide. This type of surgery includes a wide variety of procedures, from mini-invasive discectomies to multilevel spinal arthrodesis and osteotomies. Moreover, different surgical approaches are described at different spine levels: the anesthesiologist should be aware of the potential benefits and risks for the patients and be prepared for their management. In this narrative review we seek to describe basic concepts of perioperative spine care and address evolving areas in which care is changing. We will discuss preoperative concerns, intraoperative management including airway management, choice of maintenance, intraoperative neuromonitoring and anesthetic effect, blood management and the dynamic topic of anesthetic and analgesic techniques. Finally, we will briefly address the issue of perioperative complications as they relate specifically to spine surgery.
Asunto(s)
Anestesia , Anestésicos , Fusión Vertebral , Anestesia/métodos , Humanos , Atención Perioperativa , Columna Vertebral/cirugíaRESUMEN
The severe acute respiratory syndrome coronavirus SARS-CoV2 is spreading over millions of people worldwide, leading to thousands of deaths, even among the healthcare providers. Italy has registered the deaths of 337 physicians and more than 200 nurses as of March 14, 2021. Anesthesiologists are at higher risk as they are the care providers in both ICU and operating rooms.Although the vaccination of healthcare providers has been the prioirity, physicians are still continually exposed to the virus and potentially risk contagion and must thus protect themselves and their patients from the risks of infection while providing the best care to their surgical patients.Regional anesthesia allows for a reduction in airway manipulation, reducing environmental contamination as a result. Furthermore, regional anesthesia reduces the opioid requirements as well as the muscle paralysis due to muscle-relaxants and should be recommended whenever possible in COVID-19 patients. Our aim is to evaluate the advantages and criticisms of regional anesthesia in the management of surgical patients in the pandemic age.
RESUMEN
BACKGROUND: In this prospective, double-blind, randomized trial we compared 60 mg and 40 mg of 2% hyperbaric prilocaine with 60 mg of 2% plain prilocaine for spinal anesthesia in terms of sensory block onset in outpatients undergoing elective short-duration (<60 minutes) surgery under spinal anesthesia. METHODS: Ninety patients were enrolled and randomly allocated to receive 1 of the 3 treatments. Times to sensory and motor block onsets, time to the maximum sensory block level, readiness for surgery, time to first urinary voiding, time to Bromage's score 0, and side effects were registered blindly. A blinded observer also questioned patients about transient neurological symptoms 24 hours and 7 days after spinal anesthesia. RESULTS: Mean times to achieve a T10 level of sensory block were comparable in the 3 groups. However, 20% of patients receiving plain prilocaine did not achieve a T10 level. The 2 hyperbaric dosages (60 mg and 40 mg) showed significantly faster times to motor block onset (P = 0.0091, P = 0.0097), to the maximum sensory block level (P = 0.0297, P = 0.0183), to motor block offset (P = 0.0004, P < 0.0001), and to first urinary voiding (P = 0.0013, P = 0.0002, respectively) than did plain prilocaine. No major adverse reactions or transient neurological symptoms were observed in the study. CONCLUSIONS: Spinal anesthesia with 60 mg or 40 mg of 2% hyperbaric prilocaine is comparable to 60 mg of 2% plain prilocaine in terms of onset of sensory block at T10. The hyperbaric solution showed faster times to motor block onset and shorter duration of surgical block, suggesting its superiority for the ambulatory setting.
Asunto(s)
Procedimientos Quirúrgicos Ambulatorios , Anestesia Raquidea , Anestésicos Locales/administración & dosificación , Prilocaína/administración & dosificación , Adulto , Anciano , Anestesia Raquidea/efectos adversos , Anestésicos Locales/efectos adversos , Química Farmacéutica , Método Doble Ciego , Procedimientos Quirúrgicos Electivos , Femenino , Humanos , Inyecciones Espinales , Masculino , Persona de Mediana Edad , Actividad Motora/efectos de los fármacos , Prilocaína/efectos adversos , Estudios Prospectivos , Sensación/efectos de los fármacos , Factores de Tiempo , Resultado del TratamientoRESUMEN
We report the case of a 12-year-old female, otherwise healthy patient, who underwent surgery for scoliosis correction in prone position under total intravenous general anesthesia, with CardioQ and sensory-motor-evoked potentials for hemodynamic and neurological monitoring. The patient showed severe intraoperative hypotension, lactic acidosis, and complete abolition of motor-evoked potentials during the positioning of posterior corrective bars. During the postoperative period, the increase in muscle and liver enzymes indicated an abdominal organ damage and confirmed hypoperfusion of the lower limbs. Both side effects were caused by the malposition of the patient on the operating table. The case resolved within the first postoperative week without sequelae.
Asunto(s)
Complicaciones Intraoperatorias/diagnóstico , Complicaciones Intraoperatorias/etiología , Hígado/lesiones , Músculo Esquelético/lesiones , Posicionamiento del Paciente/efectos adversos , Posición Prona , Escoliosis/cirugía , Fusión Vertebral/efectos adversos , Acidosis/diagnóstico , Acidosis/etiología , Niño , Potenciales Evocados Motores , Femenino , Humanos , Hipotensión/diagnóstico , Hipotensión/etiología , Enfermedad Iatrogénica , Monitorización Neurofisiológica Intraoperatoria , Ácido Láctico , Fusión Vertebral/métodosRESUMEN
BACKGROUND: Patients undergoing elective primary total hip replacement and spinal anesthesia may encounter significant hemodynamic instability Objective: The study is aimed at observing the haemodynamic modifications after spinal anaesthesia during total hip replacement in patients managed to "preload independence" with goal directed fluid therapy (GDFT) and monitored non-invasively with Clearsight. METHODS: Thirty patients, aged 50-80 years, with an American Society of Anaesthesiologists' (ASA) score II-III, undergoing elective primary total hip replacement and spinal anaesthesia were enrolled. Patients were monitored with the EV1000 platform and the Clearsight finger-cuff and managed with a goal directed fluid therapy. RESULTS: The 79% of the population showed preload independence at baseline. After spinal, the 93% did not show a significant mean arterial pressure reduction. In our population, 79% reported a decrease >10% of the stroke volume during surgery, while 66% in the Recovery Room. Patients showed an improvement in mean arterial pressure, systemic vascular resistances indexed (SVRI), stroke volume (SV) and stroke volume indexed (SVI) at spinal resolution compared to baseline. CONCLUSIONS: Our cohort population showed hemodynamic stability throughout the study period, with increased SV and decreased SVRI at spinal resolution compared to basal values. Further randomized prospective studies are advocated in the same setting.
Asunto(s)
Anestesia Raquidea , Artroplastia de Reemplazo de Cadera , Monitorización Hemodinámica , Anciano , Anciano de 80 o más Años , Femenino , Hemodinámica , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Volumen SistólicoRESUMEN
BACKGROUND: We compared temperature changes in patients undergoing hip replacement during warming with a resistive heating blanket or air-forced system. METHODS: Fifty-six patients were enrolled. Patients were randomly allocated to the "forced-air group" (forced-air system) or to the "heating-blanket group" (resistive heating under-patient blanket). RESULTS: Baseline tympanic temperatures were 36.0 +/- 0.6 degrees C in the forced-air group and 36.1 +/- 0.4 degrees C in the heating-blanket group (P > 0.05). At the end of surgery tympanic temperatures were 35.3 +/- 0.5 degrees C in the forced-air group and 35.1 +/- 0.6 degrees C in the heating-pad group (P > 0.05). CONCLUSIONS: We demonstrated that, using either a resistive heating-blanket or forced-air warming systems, patients ended surgery in mild hypothermia after elective total hip replacement, but without significant differences between these two warming devices.
Asunto(s)
Artroplastia de Reemplazo de Cadera/efectos adversos , Ropa de Cama y Ropa Blanca , Calefacción/instrumentación , Hipotermia/prevención & control , Recalentamiento/instrumentación , Anciano , Anciano de 80 o más Años , Aire , Anestesia Raquidea/efectos adversos , Regulación de la Temperatura Corporal , Diseño de Equipo , Femenino , Humanos , Hipotermia/etiología , Hipotermia/fisiopatología , Masculino , Persona de Mediana Edad , Bloqueo Nervioso/efectos adversos , Estudios Prospectivos , TemperaturaRESUMEN
BACKGROUND: We tested the hypothesis that ultrasound (US) guidance may reduce the minimum effective anesthetic volume (MEAV(50)) of 1.5% mepivacaine required to block the sciatic nerve with a subgluteal approach compared with neurostimulation (NS). METHODS: After premedication and single-injection femoral nerve block, 60 patients undergoing knee arthroscopy were randomly allocated to receive a sciatic nerve block with either NS (n = 30) or US (n = 30). In the US group, the sciatic nerve was localized between the ischial tuberosity and the greater trochanter. In the NS group, the appropriate muscular response (foot plantar flexion or inversion) was elicited (1.5 mA, 2 Hz, 0.1 ms) and maintained to Asunto(s)
Anestésicos Locales/administración & dosificación
, Artroscopía
, Estimulación Eléctrica
, Articulación de la Rodilla/cirugía
, Mepivacaína/administración & dosificación
, Bloqueo Nervioso
, Nervio Ciático/efectos de los fármacos
, Nervio Ciático/diagnóstico por imagen
, Ultrasonografía Intervencional
, Adulto
, Artroscopía/efectos adversos
, Relación Dosis-Respuesta a Droga
, Femenino
, Nervio Femoral/efectos de los fármacos
, Humanos
, Articulación de la Rodilla/diagnóstico por imagen
, Articulación de la Rodilla/inervación
, Masculino
, Persona de Mediana Edad
, Dimensión del Dolor
, Umbral del Dolor/efectos de los fármacos
, Dolor Postoperatorio/prevención & control
, Factores de Tiempo
, Resultado del Tratamiento
RESUMEN
BACKGROUND: This study was aimed to investigate whether stimulating catheters for continuous lumbar plexus block reduce local anesthetic consumption after hip arthroplasty if compared with traditional non-stimulating catheters. METHODS: Seventy-two ASA I-III, 18-82-year-old, undergoing primary hip replacement (THA) for osteoarthritis with spinal anesthesia were randomized into two groups: Stim group (stimulating catheter, N.=36) and Nonstim group (non-stimulating catheter, N.=36). After surgery, 15 mL of mepivacaine 1% were administered in both groups through the catheter. An electronic pump was connected to deliver ropivacaine 0.2% (3 mL/h, bolus 3 mL, lock out 15 min) for the first 72 h. Patients were given ketorolac 30 mg IV every 8 h, acetaminophen 1g IV every 8 h and oxycodone 10 mg per os for rescue analgesia. Primary outcome was postoperative local anesthetic consumption. Numerical Rating Scale (NRS), complications, both quadriceps and obturator strength measurements, and opioid requirement were also registered. Mixed effect models (random intercept) were built for repeated measures over time. A difference between groups was considered statistically significant if P<0.05. RESULTS: Local anesthetic consumption and NRS were comparable between groups. Patients in the Nonstim group required significant more rescue opioid analgesia compared with the Stim group during the first 36 h (P=0.002). Quadriceps and adductor muscle strength was equally preserved in the two groups. CONCLUSIONS: The study showed comparable local anesthetic consumption, pain scores and muscle strength preservation between the two groups. The stimulating catheter allowed a significant, although underpowered, reduction in opioid consumption.
Asunto(s)
Artroplastia de Reemplazo de Cadera , Cateterismo/métodos , Plexo Lumbosacro , Bloqueo Nervioso/métodos , Manejo del Dolor/métodos , Dolor Postoperatorio/terapia , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Anestésicos Locales/administración & dosificación , Estimulación Eléctrica , Femenino , Humanos , Masculino , Persona de Mediana Edad , Manejo del Dolor/efectos adversos , Dimensión del Dolor , Estudios Prospectivos , Método Simple Ciego , Adulto JovenRESUMEN
BACKGROUND: Although obese patients benefit from neuraxial anesthesia, technical difficulties often discourage its use. The current randomized trial compared Accuro, a hand-held, battery-operated ultrasound (US) device, and conventional palpation for spinal anesthesia in obese patients undergoing orthopedic surgery. We hypothesized that Accuro would decrease the number of needle redirections. METHODS: We enrolled 130 men and women with a body mass index ≥30 kg/m2, scheduled for lower limb surgery under spinal block. Patients were randomized either to the Control group (group C: spinal block after palpation of cutaneous landmarks) or to the Accuro group (group A: preprocedural US scan with Accuro to identify the needle insertion point). The procedural time, the number of skin passes and of needle redirections, the occurrence of failure and adverse events were recorded. RESULTS: Ninety-nine patients completed the study. Patients in group Accuro showed a median (IQR) number of redirections of 3 (0-9) and a median (IQR) number of needle passes through the skin of 1 (1-2) versus 6 (1-16) and 1 (1-3), respectively, in group Control (p=0.008, p=0.019). The performance time was 558±232 s in group Accuro versus 348±255 s in group Control (p<0.001). There were no intergroup differences in terms of failed blocks and adverse events. CONCLUSIONS: The use of Accuro reduced the number of needle redirections and passes through the skin when performing spinal anesthesia, but required a longer procedural time. TRIAL REGISTRATION NUMBER: ClinicalTrials.gov registry (NCT03075488).
RESUMEN
BACKGROUND: The complexity of pain from laparoscopic cholecystectomy and the need for treating incident pain provide rationale for multipharmacological analgesia. We investigated the preoperative administration of controlled-release (CR) oxycodone as transition opioid from remifentanil infusion for pain after laparoscopic cholecystectomy. METHODS: Fifty consecutive patients undergoing laparoscopic cholecystectomy were randomly, double-blindly assigned to treatment group (n=25, CR oxycodone: 1 h before surgery and 12 h after the first administration) or to the control group (n=25, placebo: administered at the same intervals). General anaesthesia was maintained with propofol and remifentanil target-controlled infusions (TCIs). All patients received ketorolac 30 mg i.v. Tramadol i.v. was administered for patient-controlled analgesia (PCA) postoperatively. Numerical rating scale for pain at rest and at movement (NRSr and NRSi), tramadol consumption, times to readiness to surgery and awakening, times to modified Aldrete's and modified Post-Anesthetic Discharge Scoring System (PADSS)>9 and side effects were evaluated. RESULTS: All NRSr and NRSi and tramadol consumption were significantly lower in the treatment group. The oxycodone group showed higher modified Aldrete's scores at each time and reached a PADSS>9 faster. Side effects and postoperative nausea and vomiting episodes were comparable. CONCLUSIONS: We demonstrated the success of a multipharmacological treatment including opioid premedication with CR oxycodone used as transition opioid for TCI remifentanil infusion; the treatment group showed lower pain scores and rescue analgesic consumption, shorter time to discharge from recovery room and from surgical ward, and the same incidence of side effects, comparably to controls.
Asunto(s)
Analgésicos Opioides/administración & dosificación , Anestesia Intravenosa , Colecistectomía Laparoscópica/efectos adversos , Oxicodona/administración & dosificación , Dolor Postoperatorio/etiología , Dolor Postoperatorio/prevención & control , Preparaciones de Acción Retardada/administración & dosificación , Método Doble Ciego , Humanos , Persona de Mediana Edad , Cuidados Preoperatorios , Estudios ProspectivosRESUMEN
INTRODUCTION: Abuse-deterrent formulations have been developed to reduce inappropriate opioid use. The aim of this paper is to review existing literature about currently available morphine abuse-deterrent formulations. Areas covered: The US FDA has currently attributed an 'abuse-deterrent formulation' label to two different morphine compounds: an agonist/antagonist combination, and a morphine formulation with physical barrier. The combination of morphine sulfate and naltrexone showed bioequivalence with extended release morphine. Naltrexone was found in low levels or non-detectable in most of the patients. If the capsules are tampered, the orally available naltrexone would be released, causing a decreased euphoria expected by the use of morphine. The application of physical and chemical barriers to the active compound aims at preventing manipulation of the opioid tablet. This abuse-deterrent formulation obtained with a physical barrier did not reduce drug liking compared to ER morphine. Expert commentary: Available data from literature suggest that both formulations may offer an alternative with lower abuse potential in the treatment of chronic pain. Nevertheless, current evidence suggests that only a little percentage of abusers may stop abusing drugs as result of reformulation. More post-marketing studies are advocated to evaluate the real impact of abuse-deterrent formulations.
Asunto(s)
Formulaciones Disuasorias del Abuso , Analgésicos Opioides/administración & dosificación , Morfina/administración & dosificación , Analgésicos Opioides/efectos adversos , Dolor Crónico/tratamiento farmacológico , Preparaciones de Acción Retardada , Humanos , Morfina/efectos adversos , Naltrexona/administración & dosificación , Antagonistas de Narcóticos/administración & dosificación , Trastornos Relacionados con Opioides/prevención & control , Mal Uso de Medicamentos de Venta con Receta/prevención & controlRESUMEN
BACKGROUND: Acute pancreatitis has been described as potential complication of both abdominal and non-abdominal surgeries. The pathogenetic mechanism underlying acute pancreatitis in spine surgery may include intraoperative hemodynamic instability causing prolonged splanchnic hypoperfusion, as well as mechanical compression of the pancreas due to scoliosis correction, with a higher risk in cases of more extended fusions, especially in young adults with lower body mass index (BMI). CASE PRESENTATION: We report here a case of postoperative acute pancreatitis with benign evolution in a young female patient after the first and second surgery of a two-stage correction of right thoracic idiopathic scoliosis.In December 2017, the patient underwent first-stage T4-L3 posterior arthrodesis with T7-T12 osteotomies and temporary magnetic bar. Intraoperative blood loss required massive transfusion. In the immediate postoperative period, the patient started reporting nausea/vomiting, abdominal pain at pressure, moderate meteorism, abdominal distension, hypoactive bowel sounds, and fever. Laboratory tests indicated a progressive increase in aspartate aminotransferase, alanine aminotransferase, serum amylase, lipase, phospho-creatine kinase, and reactive C-protein. A CT scan showed free abundant abdominal fluid in the hepatic, renal, pancreatic, and pelvic regions. After the diagnosis, a hypolipidic diet was initiated, and good hydration per os was maintained. After gastroenterologic consultation, somatostatin, rifaximin, and ursodehoxycholic acid were initiated and maintained for 8 days. In the following days, laboratory tests showed a slow but consistent decrease in liver and pancreatic enzymes until normalization. In January 2018, the patient underwent second-stage surgery with removal of magnetic bar, definitive posterior fusion, and instrumentation T4-L3. Laboratory tests showed a second, even more significant, increase in the amylase and lipase level and a moderate increase in the reactive C-protein. Therapy was maintained until complete normalization of amylase and lipase levels. CONCLUSIONS: Early recognition of symptoms plays a key role in preventing severe morbidity after scoliosis surgery. When symptoms suggest abdominal complication, pancreatic and liver enzymes are to be evaluated for posing prompt diagnosis. Gastroenterologic consultation and eventual imaging are further steps in differential diagnosis and treatment of this rare complication.
RESUMEN
BACKGROUND: In this prospective, randomized, double-blind study we tested the hypothesis that 50 mg of 1% preservative-free 2-chloroprocaine would provide a faster resolution of spinal block than the same dose of 1% plain lidocaine. METHODS: After IV midazolam premedication (0.03 mg/kg), 30 ASA physical status I-II outpatients undergoing knee arthroscopy were randomly allocated to receive 50 mg of either 1% plain lidocaine (n = 15) or 1% preservative-free plain chloroprocaine (n = 15). A blinded observer recorded the evolution of sensory (loss of pinprick sensation) and motor (modified Bromage scale) block until complete regression, as well as times to unassisted ambulation and voiding. A telephone call follow-up was performed 24 h and 7 days after surgery. RESULTS: Two chloroprocaine patients (13%) and one lidocaine patient (7%) required fentanyl supplementation (100 microg IV) (P = 0.99) intraoperatively, but no patient required general anesthesia to complete surgery. Median (range) times for recovery of sensory and motor function, and unassisted ambulation were faster with 2-chloroprocaine [95 (68-170) min; 60 (45-120) min; and 103 (70-191) min] than lidocaine [120 (80-175) min; 100 (60-140) min; and 152 (100-185) min] (P = 0.019, P = 0.0005, and P = 0.003, respectively). No differences in first voiding were reported between chloroprocaine [180 (100-354) min] and lidocaine patients [190 (148-340) min] (P = 0.191). Transient neurological symptoms were reported in five lidocaine patients (33%) but no chloroprocaine patients (0%) (P = 0.042). CONCLUSION: Intrathecal injection of 50 mg of preservative-free 2-chloroprocaine 1% resulted in quicker recovery of sensory/motor function, and unassisted ambulation, and fewer incidences of transient neurologic symptoms than the same dose of 1% lidocaine.
Asunto(s)
Procedimientos Quirúrgicos Ambulatorios , Periodo de Recuperación de la Anestesia , Anestesia Raquidea , Anestésicos Locales , Artroscopía , Rodilla/cirugía , Lidocaína , Procaína/análogos & derivados , Adulto , Anciano , Anestésicos Locales/efectos adversos , Método Doble Ciego , Ambulación Precoz , Femenino , Humanos , Inyecciones Espinales , Estimación de Kaplan-Meier , Lidocaína/efectos adversos , Masculino , Persona de Mediana Edad , Neuronas Motoras/efectos de los fármacos , Neuronas Aferentes/efectos de los fármacos , Procaína/efectos adversos , Estudios Prospectivos , Factores de TiempoRESUMEN
Routine use of regional anesthesia for patients having surgery is supported by general safety and proven effectiveness as a targeted modality in the prevention and treatment of acute pain. Recently, perioperative physicians have become much more interested in improving long-term outcomes after surgery rather than focusing on the well-established short-term benefits of regional anesthesia. This interest has raised important questions regarding the potential influence of regional anesthesia on morbidity and mortality, persistent pain and cancer prognosis. Tissue injury is responsible for the inflammatory reaction and physiologic stress response observed during the perioperative period and can influence a patient's recovery trajectory. Regional anesthesia can modulate the inflammatory response through the direct anti-inflammatory effect of local anesthetics, blocking neural afferents, and blunting sympathetic activation. Moreover, continuous techniques (e.g., epidural and perineural catheters) that provide longer duration and titratable pain relief in the perioperative period may be protective against the development of persistent post-surgical pain by providing effective acute pain management and decreasing exposure to opioids. To maximize the potential for long-term outcome benefits to surgical patients, continuous regional anesthesia techniques are preferred over single injection techniques. Although the data are not yet definitive, some studies have demonstrated better functional recovery after joint replacement and lower rates of cancer recurrence in patients treated with continuous regional anesthesia. Future research studies in regional anesthesia will have to focus on these long-term patient-centered outcomes and may need to incorporate novel study designs and analyses of big data.
Asunto(s)
Anestesia de Conducción/métodos , Dolor Postoperatorio/prevención & control , Humanos , Resultado del TratamientoRESUMEN
Observational studies and meta-analyses have shown that the administration of nonsteroidal anti-inflammatory drugs (NSAIDs), especially when prescribed at high doses for long periods of time, can potentially increase the risk of cardiovascular diseases. The increased thrombotic risk related to the use of NSAIDs is mainly due to their cyclooxygenase 2 selectivity. The dosage use, the formulation selected and the duration of the therapy are other factors that can significantly impact on the cardiovascular risk. In order to minimize the risk, prescription of the right drug based on the patient's features and the different safety profiles of several NSAIDs that are available on the market is key for their appropriate administration. Despite the baseline cardiovascular and gastrointestinal risk of each patient, monitoring of patients is suggested for increases in blood pressure, development of edema, deterioration of renal function, or gastrointestinal bleeding during long-term treatment with NSAIDs.