[Perioperative challenges and neuromuscular blockade concerns in robotic thymectomy for myasthenia gravis]. / Desafios perioperatórios e pontos de atenção no bloqueio neuromuscular durante timectomia robótica para miastenia gravis.

Myasthenia Gravis (MG) is an autoimmune disease characterized by weakness and fatigability of skeletal muscles, with improvement following rest. It is a disease of great significance to the anesthesiologist because it affects the neuromuscular junction. Robotic thymectomy has come up in recent times due to the minimally invasive nature and its advantages. This presents a new set of challenges for the anesthesia team, and here we present the various anesthesia considerations and perioperative management in a series of 20 patients who underwent robotic thymectomy. As it is a recent upcoming procedure, there is a paucity of literature on this topic, and most of the available literature talks about One-Lung Ventilation (OLV) and thoracic epidurals. To our notice, this is the first literature without the use of OLV and thoracic epidural for the management of robotic thymectomy.

Perioperative challenges and neuromuscular blockade concerns in robotic thymectomy for myasthenia gravis / Desafios perioperatórios e pontos de atenção no bloqueio neuromuscular durante timectomia robótica para miastenia gravis

Abstract Myasthenia Gravis (MG) is an autoimmune disease characterized by weakness and fatigability of skeletal muscles, with improvement following rest. It is a disease of great significance to the anesthesiologist because it affects the neuromuscular junction. Robotic thymectomy has come up in recent times due to the minimally invasive nature and its advantages. This presents a new set of challenges for the anesthesia team, and here we present the various anesthesia considerations and perioperative management in a series of 20 patients who underwent robotic thymectomy. As it is a recent upcoming procedure, there is a paucity of literature on this topic, and most of the available literature talks about One-Lung Ventilation (OLV) and thoracic epidurals. To our notice, this is the first literature without the use of OLV and thoracic epidural for the management of robotic thymectomy.

Resumo Miastenia Gravis (MG) é uma doença autoimune que se caracteriza por fraqueza e fadiga da musculatura esquelética, com melhora após o repouso. É uma doença de grande interesse para o anestesiologista, pois compromete a junção neuromuscular. Recentemente, a timectomia robótica tem sido empregada por apresentar as vantagens da abordagem minimamente invasiva. O procedimento introduz uma série de novos desafios para a equipe de anestesia. Relatamos aqui as várias considerações anestésicas e o cuidado perioperatório em uma série de 20 pacientes submetidos a timectomia robótica. Sendo um procedimento recente, há limitada literatura discutindo esse tópico e, além disso, a maior parte da literatura disponível concentra a atenção na Ventilação Monopulmonar (VMP) e na peridural torácica. A nosso ver, este é a primeiro relato na literatura sem o emprego de VMP e peridural torácica para o manejo da timectomia robótica.

Intrathecal morphine pump for neuropathic cancer pain: a case report.

The WHO ladder has been the most widely used approach for management of Cancer Pain. However, oral medications alone may be inadequate, particularly in difficult to treat cancer pain syndromes. Neuropathic pain is one of these refractory syndromes. The role of opioids has always been controversial in pain of neuropathic origin. We report a case of a 61 year old female patient with endometrial carcinoma suffering from severe neuropathic pain in her left lower limb. The pain was refractory to highest tolerable doses of oral morphine and neuromodulator drugs, viz. gabapentin and pregabalin. We managed the patient successfully with intrathecal morphine pump reducing the total morphine dose and improving patient comfort and satisfaction. Intrathecal delivery of Morphine ensured better efficacy with fewer side effects.

Radio Frequency Ablation in Drug Resistant Chemotherapy-induced Peripheral Neuropathy: A Case Report and Review of Literature.

Chemotherapy-induced peripheral neuropathy (CIPN) is a frequently encountered complication. It can result from a host of agents. Various modalities of treatment have been advocated, of which a novel method is radio frequency ablation. A 63-year-old male, a case of carcinoma prostrate with bone metastases, presented with tingling and numbness in right upper limb. He was given morphine, gabapentin and later switched to pregabalin, but medications provided only minor relief. Initially he was given stellate ganglion block, then radiofrequency ablation of dorsal root ganglion was done, but it failed to provide complete relief. Pulsed radiofrequency ablation (PRF) was then done for 90 seconds; two cycles each in both ulnar and median nerve. After the procedure the patient showed improvement in symptoms within four to five hours and 80% relief in symptoms. We conclude that PRF can be used for the treatment of drug resistant CIPN.

Neuropathic pain in cancer patients--prevalence and management in a tertiary care anesthesia-run referral clinic based in urban India.

BACKGROUND: Cancer pain is often intractable and has a considerable impact on the quality of life. Nociceptive pain is easily recognized and managed using conventional analgesics. The neuropathic component makes cancer pain difficult to manage. The epidemiology of neuropathic pain in cancer patients has not been well documented. AIM OF THE STUDY: This retrospective study attempted to discern the prevalence of neuropathic pain over a period of 2 years, in cancer patients at the Pain and Palliative Care Clinic of a tertiary care cancer center in India. The study also aimed to describe the approach to neuropathic cancer pain alleviation. MATERIALS AND METHODS: A retrospective analysis of 3238 cancer patients who presented with complaints of pain during 2006-2008 was undertaken. Findings including type and intensity of pain, initial evaluation, treatment initiated, and other associated symptoms were recorded at the initial visit and 1 week, 1 month, and 6 months thereafter. Pain with a burning, radiating, or shooting component was considered to be neuropathic. RESULTS: The prevalence of neuropathic pain in cancer pain patients was found to be 11.8%. Oral morphine emerged as the commonest cancer pain management modality (95.8% of patients). However, 29.89% of our patients with neuropathic pain required interventional blocks for adequate pain relief. CONCLUSION: The present study highlights the significance of neuropathic pain as an integral component of cancer pain and further provides insight into its management.

Use of sustained release oral morphine as a bridge in withdrawal of morphine in patients on high doses of oral immediate release morphine for cancer pain.

According to World Health Organization (WHO), cancer pain can be controlled effectively with oral morphine in up to 90% of patients. Due to advancement in anticancer therapy and early presentation of cancer patients, the likelihood of cure is on an increasing trend. Awareness and education in the use of oral morphine, and easier regulations in procurement of oral morphine for use in cancer pain has lead to prescription of oral morphine to more patients earlier in pain therapy. In many patients, resolution of disease occurs and it becomes necessary to withdraw morphine. Guidance for starting medications is fairly easily obtained, but it is difficult to find information about switching or discontinuing opioids. The initial decrease in dose is well tolerated by the patient but the last few steps of complete withdrawal are difficult. We present 2 cases where the sustained release oral morphine was used as a bridge to withdraw immediate release oral morphine successfully in 2 patients after resolution of disease.