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Hasanin, A., K. Taha, B. A. Elhamid, and S. M. Amin, "Evaluation of the effects of dexmedetomidine infusion on oxygenation and lung mechanics in morbidly obese patients with restrictive lung disease", BMC Anesthesiology, vol. 18, issue 1, pp. 104, 2018.
Hasanin, A., "Fluid responsiveness in acute circulatory failure", Journal of Intensive Care, vol. 3, pp. 50, 2015.
Hasanin, A., A. Mukhtar, A. El-adawy, H. Nassar, D. Saad, S. Osman, A. Ahmed, A. Zaghlol, M. Sarhan, and M. Reda, "The Friday of Rage of the Egyptian Revolution: A Unique Role for Anesthesiologists", Anesthesia and Analgesia, vol. 114, issue 4, pp. 862-65, 2012.
Hasanin, A., R. Soryal, T. Kaddah, S. A. E. Raouf, Y. Abdelwahab, K. Elshafaei, M. Elsayad, B. A. Elhamid, R. Fouad, D. Mahmoud, et al., "Hemodynamic effects of lateral tilt before and after spinal anesthesia during cesarean delivery: an observational study.", BMC anesthesiology, vol. 18, issue 1, pp. 8, 2018 01 15. Abstract

BACKGROUND: Post-spinal hypotension is a common maternal complication during cesarean delivery. Aortocaval compression by the gravid uterus has been assumed as a precipitating factor for post-spinal hypotension. The role of left lateral tilting position in improving maternal cardiac output after subarachnoid block (SAB) is unclear. The aim of this work is to investigate the effect of left lateral tilting on maternal hemodynamics after SAB.

METHODS: A prospective observational study was conducted including 105 full term pregnant women scheduled for cesarean delivery. Mean arterial pressure, heart rate, cardiac output (measured by electrical cardiometry), stroke volume, and systemic vascular resistance were recorded in three positions (supine, 15, and 30left lateral positions) before SAB, after SAB, and after delivery of the fetus.

RESULTS: Before SAB, no significant hemodynamic changes were reported with left lateral tilting. A significant decrease was reported in mean arterial pressure, cardiac output, stroke volume, and systemic vascular resistance after SAB (in supine position). When performing left lateral tilting, there was an increase in cardiac output, heart rate, and mean arterial pressure. No difference was reported between the two tilt angles (15and 30).

CONCLUSIONS: Changing position of full term pregnant woman after SAB from supine to left lateral tilted position results increased cardiac output and mean arterial pressure. There is no difference between the two tilt angles (15and 30).

TRIAL REGISTRATION: ( NCT02828176 ) retrospectively registered.

Hasanin, A., K. H. Mourad, I. Farouk, S. Refaat, A. Nabih, S. A. E. Raouf, and H. Ezzat, "The Impact of Goal-Directed Fluid Therapy in Prolonged Major Abdominal Surgery on Extravascular Lung Water and Oxygenation: A Randomized Controlled Trial.", Open Access Macedonian Journal of Medical Sciences, vol. 7, issue 8, pp. 1276-1281, 2019.
Hasanin, A., A. Kamal, S. Amin, D. Zakaria, R. E. Sayed, kareem mahmoud, and A. Mukhtar, "Incidence and outcome of cardiac injury in patients with severe head trauma", Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine, vol. 24, pp. 58, 2016.
Mukhtar, A., A. Hasanin, A. Abelaal, and G. Obayah, "Infection complications and pattern of bacterial resistance in living-donor liver transplantation: A multicenter epidemiologic study in Egypt", transplantation proceedings, vol. 46, issue 5, pp. 1444-7, 2014.
Ahmed Mukhtar, Ahmed Hasanin, G. O. A. A., "Intraoperative Terlipressin Therapy Reduces the Incidence of Postoperative Acute Kidney Injury After Living Donor Liver Transplantation", Journal of cardiothoracic and vascular anesthesia, 2015.
Hasanin, A., A. Aiyad, A. Elsakka, M. OSMAN, A. Kamel, A. Mokhar, S. Refaat, R. Fouad, and Y. Hassabelnaby, "Leg elevation decreases the incidence of post-spinal hypotension in cesarean section: a randomized controlled trial", BMC Anesthesiology, vol. 17, issue 1, pp. 60, 2017.
Mohamed, H., S. M. Abbas, and A. Hasanin, "Management of post laryngectomy tracheobronchial tear with the aid of cardiopulmonary bypass", Journal of Clinical Anesthesia, vol. 55, pp. 128-129, 2019.
Hasanin, A., M. Abdulatif, and M. Mostafa, "Maternal hypotension and neonatal sequelae. Comment on Br J Anaesth 2020; 125: 588-95.", British journal of anaesthesia, vol. 127, issue 1, pp. e10-e11, 2021.
Hasanin, A., H. Tarek, M. M. A. Mostafa, A. Arafa, A. G. Safina, M. H. Elsherbiny, Osama Hosny, A. A. Gado, T. Almenesey, G. A. Hamden, et al., "Modified-ramped position: a new position for intubation of obese females: a randomized controlled pilot study.", BMC anesthesiology, vol. 20, issue 1, pp. 151, 2020. Abstract

BACKGROUND: Endotracheal intubation requires optimum position of the head and neck. In obese females, the usual ramped position might not provide adequate intubating conditions. We hypothesized that a new position, termed modified-ramped position, during induction of anesthesia would facilitate endotracheal intubation through bringing the breasts away from the laryngoscope and would also improve the laryngeal visualization.

METHODS: Sixty obese female patients scheduled for general anesthesia were randomly assigned into either ramped or modified-ramped position during induction of anesthesia. In the ramped position (n = 30), the patient head and shoulders were elevated to achieve alignment of the sternal notch and the external auditory meatus; while in the modified-ramped position (n = 30), the patient shoulders were elevated using a special pillow, and the head was extended to the most possible range. Our primary outcome was the incidence of failed laryngoscopic insertion in the oral cavity (the need for patient repositioning). Other outcomes included time till vocal cord visualization, time till successful endotracheal intubation, difficulty of the mask ventilation, and Cormack-Lehane grade for laryngeal view.

RESULTS: Fourteen patients (47%) in ramped group required repositioning to facilitate introduction of the laryngoscope in the oral cavity in comparison to one patient (3%) in the modified-ramped position (p < 0.001). Modified-ramped position showed lower incidence of difficult mask ventilation, shorter time for glottic visualization, and shorter time for endotracheal tube insertion compared to the ramped position. The Cormack-Lehane grade was better in the modified-ramped position.

CONCLUSION: Modified-ramped position provided better intubating conditions, improved the laryngeal view, and eliminated the need for repositioning of obese female patients during insertion of the laryngoscope compared to ramped position.

CLINICAL TRIAL REGISTRATION: Identifier: NCT03640442. Date: August 2018.

Hasanin, A., S. Amin, N. Agiza, M. Hassan, and S. Refaat, "Norepinephrine Infusion for Preventing Postspinal Anesthesia Hypotension during Cesarean Delivery: A Randomized Dose-finding Trial.", Anesthesiology, vol. 130, issue 1, pp. 55-62, 2019.
Hasanin, A., S. Amin, S. Refaat, S. Habib, M. Zayed, and Y. Abdelwahab, "Norepinephrine Versus Phenylephrine Infusion for Prophylaxis Against Post-Spinal Anaesthesia Hypotension During Elective Caesarean Delivery: A Randomised Controlled Trial", Anaesthesia Critical Care & Pain Medicine, vol. 38, issue 6, pp. 601-607, 2019.
Helmy, M. A., L. Magdy Milad, A. Hasanin, and M. Mostafa, "The novel use of diaphragmatic excursion on hospital admission to predict the need for ventilatory support in patients with coronavirus disease 2019.", Anaesthesia, critical care & pain medicine, vol. 40, issue 6, pp. 100976, 2021. Abstract

BACKGROUND: We aimed to evaluate the ability of diaphragmatic excursion at hospital admission to predict outcomes in patients with coronavirus disease-2019 (COVID-19).

METHODS: In this prospective observational study, we included adult patients with severe COVID-19 admitted to a tertiary hospital. Ultrasound examination of the diaphragm was performed within 12 h of admission. Other collected data included peripheral oxygen saturation (SpO), respiratory rate, and computed tomography (CT) score. The outcomes included the ability of diaphragmatic excursion, respiratory rate, SpO, and CT score at admission to predict the need for ventilatory support (need for non-invasive or invasive ventilation) and patient mortality using the area under the receiver operating characteristic curve (AUC) analysis. Univariate and multivariable analyses about the need for ventilatory support and mortality were performed.

RESULTS: Diaphragmatic excursion showed an excellent ability to predict the need for ventilatory support, which was the highest among respiratory rate, SpO, and CT score; the AUCs (95% confidence interval [CI]) was 0.96 (0.85-1.00) for the right diaphragmatic excursion and 0.94 (0.82-0.99) for the left diaphragmatic excursion. The right diaphragmatic excursion also had the highest AUC for predicting mortality in relation to respiratory rate, SpO, and CT score. Multivariable analysis revealed that low diaphragmatic excursion was an independent predictor of mortality with an odds ratio (95% CI) of 0.55 (0.31-0.98).

CONCLUSION: Diaphragmatic excursion on hospital admission can accurately predict the need for ventilatory support and mortality in patients with severe COVID-19. Low diaphragmatic excursion was an independent risk factor for in-hospital mortality.

Mukhtar, A., M. AbdelGhany, A. Hasanin, W. Hamimy, A. Abougabal, H. Nasser, A. Elsayed, and E. Ayman, "The Novel Use of Point-of-Care Ultrasound to Predict Resting Energy Expenditure in Critically Ill Patients.", Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine, vol. 40, issue 8, pp. 1581-1589, 2021. Abstract

OBJECTIVES: Accurate estimation of a critically ill patient's caloric requirements is essential for a proper nutritional plan. This study aimed to evaluate the use of point-of-care ultrasound (US) to predict the resting energy expenditure (REE) in critically ill patients.

METHODS: In 69 critically ill patients, we measured the REE using indirect calorimetry (REE_IC), muscle layer thicknesses (MLTs), and cardiac output (CO). Muscle thickness was measured at the biceps and the quadriceps muscles. Patients were randomly split into a model development group (n = 46) and a cross-validation group (n = 23). In the model development group, a multiple regression analysis was applied to generate REE using US (REE_US) values. In the cross-validation group, REE was calculated by the REE_US and the resting energy expenditure using the Harris-Benedict equation (REE_HB), and both were compared to the REE_IC.

RESULTS: In the model development group, the REE_US was predicted by the following formula: predicted REE_US (kcal/d) = 206 + 173.5 × CO (L/min) + 137 × MLT (cm) - 230 × (women = 1; men = 0) (R  = 0.8; P < .0001). In the cross-validated group, the REE_IC and REE_US values were comparable (mean difference, -66 [-3.3%] kcal/d; P = .14). However, the difference between the mean REE_IC and the mean REE_HB was 455.8 (26%) kcal/d (P < .001). According to a Bland-Altman analysis, the REE_US agreed well with the REE_IC, whereas the REE_HB did not.

CONCLUSIONS: Resting energy expenditure could be estimated from US measurements of MLTs and CO. Our point-of-care US model explains 80% of the change in the REE in critically ill patients.

Mukhtar, A., ahmed lotfy, A. Hasanin, I. El-Hefnawy, and A. El-adawy, "Outcome of non-invasive ventilation in COVID-19 critically ill patients: A Retrospective observational Study", Anaesthesia Critical care & Pain Medicine, vol. 39, pp. 579-580, 2020.
Hasanin, A., A. Mukhtar, and H. Nassar, "Perfusion indices revisited", Journal of Intensive Care, vol. 5, pp. 24, 2017.
Hasanin, A., and Y. Hassabelnaby, "Perioperative non-invasive haemodynamic optimisation: Is photoplethysmography really useless?", Anaesthesia Critical care & Pain Medicine, vol. 39, pp. 625, 2020.
ahmed lotfy, A. Hasanin, M. Rashad, M. Mostafa, D. Saad, M. Mahmoud, W. Hamimy, and A. Z. Fouad, "Peripheral perfusion index as a predictor of failed weaning from mechanical ventilation.", Journal of clinical monitoring and computing, vol. 35, issue 2, pp. 405-412, 2021. Abstract

We hypothesized that impairment of peripheral perfusion index (PPI) during spontaneous breathing trial (SBT) might be predictive of weaning failure. We included 44 consecutive, adult, patients, who were scheduled for weaning after at least 48 h of invasive mechanical ventilation in this prospective observational study. Weaning failure was defined as failed SBT or reintubation within 48 h of extubation. PPI readings were obtained before initiation of the SBT, and every 5 min till the end of the SBT. PPI ratio was calculated at every time point as: PPI value/ baseline PPI. The primary outcome was the accuracy of PPI ratio at the end of the SBT in detecting failed weaning. Forty-three patients were available for the final analysis. Eighteen patients (42%) were considered failed weaning. PPI ratio was higher in patients with successful weaning compared to patients with failed weaning during the last 15 min of the SBT. PPI ratio at the end of SBT was higher in patients with successful weaning compared to patients with failed weaning. PPI ratio at the end of SBT had good predictive ability for weaning failure {area under receiver operating characteristic curve (95% confidence interval): 0.833(0.688-0.929), cutoff value ≤ 1.41}. The change in PPI during SBT is an independent predictor for re-intubation. PPI could be a useful tool for monitoring the patient response to SBT. Patients with successful weaning showed higher augmentation of PPI during the SBT compared to re-intubated patients. Failure of augmenting the PPI by 41% at the end of SBT could predict re-intubation with negative predictive value of 95%. Clinical trial identifier: NCT03974568.;draw=3&amp;rank=17.

Abdelnasser, A., B. Abdelhamid, A. Elsonbaty, A. Hasanin, and A. Rady, "Predicting successful supraclavicular brachial plexus block using pulse oximeter perfusion index.", British journal of anaesthesia, vol. 119, issue 2, pp. 276-280, 2017 Aug 01. Abstract

Background: Supraclavicular nerve block is a popular approach for anaesthesia for upper limb surgeries. Conventional methods for evaluation of block success are time consuming and need patient cooperation. The aim of this study was to evaluate whether the perfusion index (PI) can be used to predict and provide a cut-off value for ultrasound-guided supraclavicular nerve block success.

Methods: The study included 77 patients undergoing elective orthopaedic procedures under ultrasound-guided supraclavicular nerve block. After local anaesthetic injection, sensory block success was assessed every 3 min by pinprick, and motor block success was assessed every 5 min by the ability to flex the elbow and the hand against resistance. The PI was recorded at baseline and at 10, 20, and 30 min after anaesthetic injection in both blocked and non-blocked limbs. The PI ratio was calculated as the PI after 10 min divided by the PI at the baseline. Receiver operating characteristic curves were constructed for the accuracy of the PI in detection of block success.

Results: The PI was higher in the blocked limb at all time points, and this was paralleled by a higher PI ratio compared with the unblocked limb. Both the PI and the PI ratio at 10 min after injection showed a sensitivity and specificity of 100% for block success at cut-off values of 3.3 and 1.4, respectively.

Conclusions: The PI is a useful tool for evaluation of successful supraclavicular nerve block. A PI ratio of > 1.4 is a good predictor for block success.

Hasanin, A. M., A. M. Mokhtar, S. M. Amin, and A. A. Sayed, "Preprocedural ultrasound examination versus manual palpation for thoracic epidural catheter insertion.", Saudi journal of anaesthesia, vol. 11, issue 1, pp. 62-66, 2017 Jan-Mar. Abstract

BACKGROUND AND AIMS: Ultrasound imaging before neuraxial blocks was reported to improve the ease of insertion and minimize the traumatic trials. However, the data about the use of ultrasound in thoracic epidural block are scanty. In this study, pre-insertion ultrasound scanning was compared to traditional manual palpation technique for insertion of the thoracic epidural catheter in abdominal operations.

SUBJECTS AND METHODS: Forty-eight patients scheduled to midline laparotomy under combined general anesthesia with thoracic epidural analgesia were included in the study. Patients were divided into two groups with regard to technique of epidural catheter insertion; ultrasound group (done ultrasound screening to determine the needle insertion point, angle of insertion, and depth of epidural space) and manual palpation group (used the traditional manual palpation technique). Number of puncture attempts, number of puncture levels, and number of needle redirection attempts were reported. Time of catheter insertion and complications were also reported in both groups.

RESULTS: Ultrasound group showed lower number of puncture attempts (1 [1, 1.25] vs. 1.5 [1, 2.75],= 0.008), puncture levels (1 (1, 1) vs. 1 [1, 2],= 0.002), and needle redirection attempts (0 [0, 2.25] vs. 3.5 [2, 5],= 0.00). Ultrasound-guided group showed shorter time for catheter insertion compared to manual palpation group (140 ± 24 s vs. 213 ± 71 s= 0.00).

CONCLUSION: Preprocedural ultrasound imaging increased the incidence of first pass success in thoracic epidural catheter insertion and reduced the catheter insertion time compared to manual palpation method.

Ahmed Hasanin, Akram Eladawy, H. M. Y. S. I. A. L. H. M. D. G. A. M., "Prevalence of extensively drug-resistant gram negative bacilli in surgical intensive care in Egypt", Pan African Medical Journal, vol. 19, pp. 177, 2014.
Hasanin, A., N. Sherif, M. Elbarbary, and D. Mansor, "Providing medical care in unfamiliar settings; experience of an Egyptian campaign in Uganda", Pan African Medical Journal, vol. 17, pp. 111, 2014.
Hasanin, A., T. Zanata, S. Osman, Y. Abdelwahab, R. Samer, M. Mahmoud, M. Elsherbiny, K. Elshafaei, F. Morsy, and A. Omran, "Pulse Pressure Variation-Guided Fluid Therapy during Supratentorial Brain Tumour Excision: A Randomized Controlled Trial.", Open Access Macedonian Journal of Medical Sciences, vol. 7, issue 15, pp. 2474-2479, 2019.