Anesthesiology Commons^™

Impact Of Deep Versus Awake Laryngeal Mask Airway Removal On Airway Complications In Spontaneously Breathing Adult Patients Following Isoflurane General Anesthesia., Ronald Ombaka

Master of Medicine in Anaesthesiology

Background: The Laryngeal Mask Airway (LMA) is one of several supra-glottic airway management devices used in anaesthesia. The scope of use of the LMA is progressively expanding to areas previously contraindicated, for instance laparoscopy and prone position surgery. Certain aspects of LMA use remain unsettled. Whether to remove the LMA when a patient is “awake” vs “deep” following anaesthesia is one such area. The manufacturer Ambu® recommends that the AuraOnce™ LMA be removed once the patient is fully awake and protective airway reflexes are active. Despite this, several studies have shown benefit in removal of the LMA while a patient …

A Randomized Controlled Trial Comparing The Proportion Of Hypoxia In Sedated Adults Undergoing Upper Gastrointestinal Endoscopy Using Target Controlled Infusion Of Propofol Versus Intermittent Boluses., Catherine Ndosi

Master of Medicine in Anaesthesiology

Background: A wide variety of sedation techniques are employed to facilitate various invasive diagnostic and therapeutic procedures. Increasingly, propofol is emerging as the preferred sedative agent. Traditionally, it has been administered as intermittent boluses to achieve deep sedation to facilitate gastrointestinal endoscopy. Propofol target controlled infusion can be employed to provide suitably conducive conditions for this purpose. Objective: The primary objective sought to compare the proportion of hypoxia between the study group receiving intermittent boluses of propofol at 0.25mg/kg as needed, and the other receiving target-controlled infusion of propofol at 2.5mcg/ml during upper gastrointestinal endoscopy. The secondary objectives were to …

Manual Trans-Tracheal High Frequency Positive Pressure Ventilation For Left Main Bronchus And Carinal Mass Surgical Resection In A Child, Mohammad Irfan Akhtar, Faisal Junejo, Hamid Iqil Naqvi, Mohammad Hamid

Department of Anaesthesia

Inflammatory myofibroblastic tumor (IMT), also called pseudo-tumor, is a very rare condition and accounts for less than 1% of primary lung tumor. It is most common benign tumor of lung in children. This case is reported with the objective of highlighting the role of manual trans-tracheal high frequency positive pressure ventilation (HFPPV) in facilitating surgical resection with maintenance of adequate oxygenation and a little compromised ventilation. A 9-year boy, weighing 21 kg, was diagnosed as a case of IMT of left main bronchus on biopsy and was successfully treated by surgical excision through left thoracotomy. HFPPV through improvised technique was …

Ultrasound-Guided Vascular Access: An Evolving Standard Of Care Clinical Practice, Which Is Extremely Under-Utilized In Pakistan, Mohammad Irfan Akhtar, Mohammad Hamid, Fauzia Minai

Department of Anaesthesia

No abstract provided.

Endothelin Signaling In Bone, Jasmin Kristianto, Michael Johnson, Rafia Afzal, Robert D. Blank

Department of Anaesthesia

The endothelin (ET) system includes 3 small peptide hormones and a pair of G-protein-coupled receptors. This review first outlines the ET signaling pathway and ET metabolism. Next, it summarizes the role of ET1 signaling in craniofacial development. Then, it discusses observations relating ET signaling to osteoblastic and other osteosclerotic processes in cancer. Finally, it describes recent work in our laboratory that points to endothelin signaling as an upstream mediator of WNT signaling, promoting bone matrix synthesis and mineralization. It concludes with a statement of some remaining gaps in knowledge and proposals for future research.

The Effect Of A Preanaesthesia Clinic Consultation On Adult Patient Anxiety At A Tertiary Hospital In Kenya: A Cohort Study, Anthony Kamau, Vitalis Mung’Ayi, Gerald Yonga

Anaesthesiology, East Africa

Background: Preoperative anxiety is a common perioperative complication seen in approximately 11-80% of adults undergoing surgery. One of the goals of the preanaesthesia clinic is to allay anxiety. A preanaesthesia clinic evaluation has been shown to reduce anxiety however current studies on anxiety and the preanaesthesia clinic have not quantified this reduction.

Objective: To determine the reduction in anxiety in patients evaluated in the clinic versus those evaluated in the ward.

Methods: Fifty one adult patients with 28 patients in anaesthesia clinic (AC) group and 23 in the ward (W) group were sequentially recruited from both the surgical, gynaecology and …

Another Approach For Prone Positioning Under General Anaesthesia, Dileep Kumar, Mohammad Hamid, Kelash Kumar

Department of Anaesthesia

No abstract provided.

Anaesthetic Management In A Child With Goldenhar Syndrome, Waqas Ahmed Khan, Bushra Salim, Ausaf Ahmed Khan, Shakaib Chughtai

Department of Anaesthesia

Goldenhar syndrome is a congenital disorder involving deformities of the face. It usually affects one side of the face only and poses significant challenges in the airway management. We herein, report an 8-year boy, known case of Goldenhar syndrome, who presented to our radiology suite for a magnetic resonance imaging (MRI) brain, followed by a computed tomography (CT) scan brain. The boy had various features of Goldenhar syndrome, e.g. cleft palate, absent right eye and ear, right mandibular hypoplasia, micrognathia, and preauricular tags. His developmental milestones were delayed. Airway evaluation showed Mallampati class II with limited movements of head and …

Emerging Protagonists In Cancer Metastasis: An Oath Of Allegiance By Platelets, Akbar Shoukat Ali, Arzoo Ajaz, Heeba Hamid

Department of Anaesthesia

No abstract provided.

Physical Manipulation Of Larynx As A Technique For Insertion Of Nasogastric Tube, Sheema Siraj, Mehmood Mian, Fauzia Anis Khan

Department of Anaesthesia

No abstract provided.

Pulmonary Hypertensive Crisis And Its Efficient Management. A Case Report And Literature Review, Karima Karam Khan, Fazal Hameed Khan

Department of Anaesthesia

Perioperative anaesthetic management of patients with pulmonary hypertensive crisis is complex and challenging because of limited window period and treatment options. This case report describes the successful management of a patient with severe valvular heart disease superimposed by severe pulmonary hypertension, who developed pulmonary hypertensive crisis soon after induction of general anaesthesia for cardiac surgery. Pulmonary hypertensive crisis is not a usual phenomenon in these patients, but if it occurs it can be fatal. Anticipatory care of the patient to prevent crisis is the mainstay of treatment, otherwise it adds additional morbidity to such patients. Fortunately our patient survived the …

An Analysis Of Perioperative Adverse Neurological Events Associated With Anesthetic Management At A Tertiary Care Center Of A Developing Country, Fauzia Anis Khan, Sobia Khan, Gauhar Afshan

Department of Anaesthesia

Background and Aims: Existing literature on neurological complications related to anesthesia is reported from affluent countries but the trends may vary in less affluent countries.MATERIAL AND Methods: The objective was to find the associated factors contributing to neurological adverse events occurring within 48 h of anesthesia and surgery. The existing departmental morbidity and mortality database was reviewed from 1992 to 2012 for major adverse neurological events. A standardized methodology was used in reviewing and classifying the data. All adverse events were predefined and categorized before filling the form into the following headers; meningitis, cord/plexus/peripheral nerve injury, stroke, paraparesis/paraplegia/quadriparesis/or quadriplegia, new …

Multi-Organ Dysfunction Secondary To Yellow Scorpion Sting, Muhammad Faisal Khan, Hameed Ullah

Department of Anaesthesia

Scorpion stings are common in tropical and subtropical regions. The history and clinical manifestation warrant urgent recognition and treatment. The incidence of scorpion stings in Pakistan is not known as there is no published data available in literature. We report our experience of a yellow scorpion sting victim who required intensive care admission after developing multi-organ dysfunction.

Awareness Regarding Application Of Endotracheal Tube (Ett) Cuff Pressure Measuring Gauge In Anesthesia Practice; Acritical Step To Avoid Postintubation Tracheal Stenosis In Critically Ill Patients On Prolonged Mechanical Ventilator, Mohammad Irfan Akhtar

Department of Anaesthesia

No abstract provided.

A Randomised Controlled Trial Comparing Weight Adjusted Dose Versus Fixed Dose Prophylactic Phenylephrine Infusion On Maintaining Systolic Blood Pressure During Caesarean Section Under Spinal Anaesthesia, Lucy Mwaura, Vitalis Mung’Ayi, Jimmie Kabugi, Samina Mir

Anaesthesiology, East Africa

Background: Spinal anaesthesia is the standard of care for elective caesarean delivery. It has advantages over general anaesthesia. However the sympathetic blockade induced by spinal anaesthesia results in an 80 percent incidence of hypotension without prophylactic management. Current evidence supports co-loading with intravenous fluids in conjunction with the use of vasopressors as the most effective way to prevent and treat the hypotension. Phenylephrine is the accepted vasopressor of choice in the parturient. A prophylactic phenylephrine infusion combined with a fluid co-load is proven to be an effective and safe method of maintaining maternal hemodynamic stability. While most published studies have …

Comparison Of Weight Adjusted Dose Versus Fixed Dose Ondansetron In Preventing Shivering Following Spinal Anesthesia For Cesarean Deliveries, Moses Kimuri Gicheru

Master of Medicine in Anaesthesiology

Background: Spinal anesthesia is an effective regional anesthesia technique, which is preferred in almost 86% of cesarean sections in the United States and United Kingdom. Eighty percent of cesarean sections done at the Aga Khan University hospital are under spinal anesthesia. Shivering is a common complication of spinal anesthesia, it occurs in 40%-64% of patients after neuraxial anesthesia. Shivering may cause maternal and fetal hypoxemia, maternal discomfort and a problem to the anesthesiologists when it comes to monitoring the patient during cesarean sections. Ondansetron a 5-HT3 receptor antagonist is effective in treatment and prevention of post spinal anesthesia shivering. In …

Effect Of Laryngeal Mask Airway Manometry On Post-Operative Sore Throat In Spontaneously Breathing Adult Patients Presenting For Surgery At Aga Khan University Hospital, Nairobi, David Njoroge Waruingi

Master of Medicine in Anaesthesiology

Background: Laryngeal mask airways (LMAs) are widely used in anaesthesia and are considered to be generally safe. Postoperative sore throat (POST) is a frequent complication following LMA use and can be very distressing to patients. The use of an LMA cuff pressure of between 30 and 32cm of H20 in alleviating postoperative sore throat has not been investigated. Primary objective: To compare the occurrence of POST between the intervention group in which LMA cuff pressures will be adjusted to 30-32cm of H20 and the control group in which only monitoring of LMA cuff pressures will be done. Secondary Objectives: To …

Effect Of Low-Dose Ketamine Versus Fentanyl On Attenuating The Haemodynamic Response To Laryngoscopy And Endotracheal Intubation In Patients Undergoing General Anaesthesia At The Aga Khan University Hospital, Nairobi, Angela Ongewe

Master of Medicine in Anaesthesiology

Background: The use of drugs to attenuate the haemodynamic response to laryngoscopy and endotracheal intubation is the standard of care during elective surgery. Current evidence is conflicting concerning the best agent and optimal dose for this purpose. In the majority of cases, Fentanyl is widely utilized to attenuate haemodynamic responses. Ketamine, an established available drug, has been scarcely studied in this regard at low doses and against varying doses of other common agents. Objective: The primary objective was to compare the overall occurrence of hypertension and tachycardia immediately pre-intubation (post-induction) until 10 minutes post intubation between the study group receiving …

Comparison Of Spinal Anesthesia Dosage Based On Height And Weight Versus Height Alone In Patients Undergoing Elective Cesarean Section, Khalid Maudood Siddiqui, Muhammad Asghar Ali, Hameed Ullah

Department of Anaesthesia

Background: Spinal anesthesia with bupivacaine, typically used for elective and emergency cesarean section, is associated with a significant incidence of hypotension resulting from sympathetic blockade. A variety of dosing regimens have been used to administer spinal anesthesia for cesarean section. The objective of this study was to compare the incidence of hypotension following two different fixed dosing regimens.Methods: This was a randomized double-blind clinical trial with a two-sided design, 5% significance level and 80% power. After approval of the hospital ethics review committee, 60 patients were divided randomly into two groups. In one group, the local anesthetic dose was adjusted …

A Randomised Controlled Trial Comparing The Effect Of Adjuvant Intrathecal 2 Mg Midazolam To 20 Micrograms Fentanyl On Postoperative Pain For Patients Undergoing Lower Limb Orthopaedic Surgery Under Spinal Anaesthesia, Francis Codero, Vitalis Mung’Ayi, Sharif Thikra

Anaesthesiology, East Africa

Background: Intrathecal adjuvants are added to local anaesthetics to improve the quality of neuraxial blockade and prolong the duration of analgesia during spinal anaesthesia. Used intrathecally, fentanyl improves the quality of spinal blockade as compared to plain bupivacaine and confers a short duration of post-operative analgesia. Intrathecal midazolam as an adjuvant has been used and shown to improve the quality of spinal anaesthesia and prolong the duration of post-operative analgesia. No studies have been done comparing intrathecal fentanyl with bupivacaine and intrathecal 2 mg midazolam with bupivacaine.

Objective: To compare the effect of intrathecal 2mg midazolam to intrathecal 20 micrograms …

Monitoring Intra-Abdominal Pressure : Should It Be A Routine For Critically Ill?, Madiha Hashmi

Department of Anaesthesia

No abstract provided.

Effects Of Bupivacaine Infiltration On Postoperative Tramadol Consumption In Elective Day Care Unilateral Inguinal Hernia Repair, Rehan Muhammad Qureshi, Fauzia Anis Khan

Department of Anaesthesia

Objective: To determine the difference in analgesic requirement in terms of mean postoperative narcotic consumption and mean postoperative pain score in patients undergoing unilateral inguinal hernia repair with or without bupivacaine infiltration as day-care patients.Methods: The randomised controlled trial was conducted at Aga Khan University Hospital, Karachi, from June to December 2011, and comprised patients who were randomly divided into groups A and B. Tramadol 1.5 mgkg-1 was used as intraoperative analgesia. At the time of closure of surgical incision, 20ml of bupivacaine 0.25% plain was infiltrated in the subcutaneous tissue sub-facially and in the deeper layers along the incision …

794 Evaluating Disability In Adult Burn Injury Patients Treated At A Tertiary-Care Burn Unit In Karachi, Pakistan: A Longitudinal Study Using Who Disability Assessment Schedule Ii, Nukhba Zia, Asim Durrani, Safia Awan, Madiha Hashmi, Mazhar Nizam, Asad Latif

Department of Anaesthesia

Background: Disability after burn injury is not assessed in the context of Pakistan. This study assesses disability among adult burn injury patients presenting to a burn unit in Karachi, Pakistan.
Methods: This longitudinal study was conducted at a burn centre is Karachi, Pakistan. Adult patients(>18 years) who were discharge after 24-hour admission were enrolled from August 2014–March 2015. Baseline assessment before discharge and follow-up at 2,6 and 12 weeks after discharge via telephone was done using 12-item WHODAS 2.0 (5 -point likert-scale; 1 = none; 2 = mild; 3 = moderate; 4 = severe; and 5 = extreme) related …

Frequency, Indications And Complications Of Pulmonary Artery Catheter Insertion In Adult Open-Heart Surgery Patients Of A Tertiary Care Hospital, Syed Shabbir Ahmed, Mohammad Irfan Akhtar, Rehana Kamal

Department of Anaesthesia

Background: Patients presenting for cardiac surgery have unstable cardiovascular disease and haemodynamics with multiple coexisting diseases. Optimal monitoring in the perioperative period is very important for best perioperative outcome. The introduction of the flow-directed pulmonary artery catheter (PAC) into clinical practice is one of the most important and popular advances in the field of cardiac anaesthesia. The objective of the study was to determine the frequency, indications and complications of pulmonary artery catheter insertion in adult open-heart surgery patients.Methods: A Prospective observational study was conducted at cardiac operating rooms and Cardiac Intensive care unit (CICU) of Aga Khan University Hospital …

Incidence, Outcome And Risk Factors For Sepsis- A Two Year Retrospective Study At Surgical Intensive Care Unit Of A Teaching Hospital In Pakistan, Ali Asghar, Madiha Hashmi, Saima Rashid, Fazal Hameed Khan

Department of Anaesthesia

Background: Sepsis is amongst the leading causes of admission to the intensive care units and is associated with a high mortality. However, data from developing countries is scarse. Aim of conducting this study was to determine the incidence, outcome and risk factors for sepsis on admission to surgical intensive care unit (SICU) of a teaching hospital in Pakistan.
Methods: Two year retrospective observational study included all consecutive adult admissions to the surgical intensive care unit (SICU) of a University Hospital, from January 2012 to December 2013.
Results: Two hundred and twenty-nine patients met the inclusion criteria. Average age of the …

Fast Track Extubation In Adult Patients On Pump Open Heart Surgery At A Tertiary Care Hospital, Mohammad Irfan Akhtar, Hasanat Sharif, Mohammad Hamid, Khalid Samad, Fazal Hameed Khan

Department of Anaesthesia

Background: Fast-track cardiac surgery programs have been established as the standard of cardiac surgical care. Studies have shown that early extubation in elective cardiac surgery patients, including coronary and non-coronary open-heart surgery patients does not increase perioperative morbidity and mortality. The objective of this observational study was to determine the success and failure profile of fast track extubation (FTE) practice in adult open-heart surgical patients.
Methods: The study was conducted at cardiac operating room and Cardiac Intensive Care Unit (CICU) of a tertiary care hospital for a period of nine months, i.e., from Oct 2014 to June-2015. All on pump …

Burn Injury Characteristics: Findings From Pakistan National Emergency Department Surveillance Study, Emaduddin Siddiqui, Nukhba Zia, Asher Feroze, Safia Awan, Arifa Liaquat Ali, Junaid Razzak, Adnan Hyder, Asad Latif

Department of Emergency Medicine

Background: Burn injury is an important yet under-researched area in Pakistan. The objective of this study was to determine the characteristics and associated outcomes of burn injury patients presenting to major emergency departments in Pakistan.
Methods: Pakistan National Emergency Department Surveillance (Pak-NEDS) was a pilot active surveillance conducted between November 2010 and March 2011. Information related to patient demographics, mode of arrival, cause of burn injury, and outcomes was analyzed for this paper. Data were entered using Epi Info and analyzed using SPSS v.20. Ethical approval was obtained from all participating sites.
Results: There were 403 burn injury patients in …

Role Of Acute Pain Service In Optimizing Postoperative Pain Relief In A Tertiary Care Teaching Hospital, Aliya Ahmed, Muhammad Yasir

Department of Anaesthesia

Objective: To assess the frequency and types of adjustments that acute pain service makes to postoperative analgesic regimes to improve pain relief or treat side effects.Methods: The prospective observational study was conducted at the Aga Khan University Hospital, Karachi, from December 1, 2012, to March 31, 2013. Data was collected from Acute Pain Service register four hours after the pain rounds by a Service member not involved in rounds. Data was collected on a standardised form and analysed using SPSS 19.Results: Of the 323 patients, 209(65%) were receiving epidural infusions and 114(35%) were receiving intravenous patient-controlled analgesia. Overall, 114(35%) required …

Track Extubation In Pediatric Congenital Heart Disease Open Heart Surgical Patients In Pakistan, Mohammad Irfan Akhtar

Department of Anaesthesia

No abstract provided.

A Randomized Controlled Trial Comparing Haemodynamic Stability In Elderly Patients Undergoing Spinal Anaesthesia At L5, S1 Versus Spinal Anaesthesia At L3, 4 At A Tertiary African Hospital., Vitalis Mung’Ayi, Karen Mbaya, Sharif Thikra, Dorothy Kamya

Anaesthesiology, East Africa

Background: Spinal anaesthesia is a routinely used anaesthetic technique in elderly patients (> 60 years) undergoing operations involving the lower limbs, lower abdomen, pelvis and the perineum. Spinal anaesthesia has several advantages over general anaesthesia including stable haemodynamic variables, less blood loss, less post-operative pain, faster recovery time and less post-operative confusion. Despite these advantages, the sympathetic blockade induced by spinal anaesthesia can result in hypotension, bradycardia, dysrhythmias and cardiac arrests. Conventionally, spinal anaesthesia is performed at the level of L3,4 interspace; with a reported incidence of hypotension in the elderly ranging between 65% and 69%. A possible strategy for …