keyword
https://read.qxmd.com/read/38107496/acute-increase-in-a-thyroid-cyst-during-cesarean-section-under-general-anesthesia-in-a-full-term-parturient-a-case-report
#21
Ju Eun Kwak, Kwon Hui Seo, Jiheon Kim, Yuseung Oh
BACKGROUND: Pregnancy is associated with thyroid nodule formation and increased size. However, an acute increase in thyroid cysts during cesarean section is unusual. CASE DESCRIPTION: We describe the case of a 23-year-old primiparous woman at 37 weeks of gestation, without a history of thyroid disease, who underwent a cesarean section under general anesthesia. When the baby was delivered after induction of general anesthesia, the patient's airway pressure increased by approximately 5-7 mmHg, and her blood pressure increased to 170/78 mmHg...
November 24, 2023: Gland Surgery
https://read.qxmd.com/read/38076300/large-spontaneous-lung-hernia-a-case-report
#22
Hareshdeva Devan Nair, Bibhusal Thapa, Krishna Bhagwat
Intercostal lung hernias can be results of trauma or surgery. True spontaneous lung hernias thought to be a result of sudden acute increase in intrathoracic pressures are extremely rare. Only 51 cases have been reported in literature over the past four-and-half decades. We report a case of spontaneous chest wall posterior-lateral lung herniation that developed in a 73-year-old following severe coughing and straining during an episode of lower respiratory tract infection. Herein we present the unusual findings in the case and outline the pathophysiology of the problem and management options available...
December 2023: Journal of Surgical Case Reports
https://read.qxmd.com/read/38052742/usefulness-of-preoperative-ice-cream-consumption-and-novel-postoperative-drainage-management-in-patients-undergoing-left-sided-neck-dissection-for-thyroid-cancer-a-nonrandomized-prospective-study
#23
JOURNAL ARTICLE
Yusuke Mori, Hiroyuki Yamashita, Shinya Sato, Hisakazu Shindo, Seigo Tachibana, Takashi Fukuda, Misa Okamura, Atushi Yamaoka, Hiroshi Takahashi, Koichi Yoshimoto
PURPOSE: This study investigated the effects of ice cream consumption on chyle leakage after left lateral neck dissection in patients with thyroid cancer. METHODS: A total of 491 patients with thyroid cancer underwent left lateral neck dissection with identification of the thoracic duct following ice cream consumption. Before closing the wound, the anesthesiologist increased the intrathoracic pressure to observe chyle leakage. If chyle leakage occurred postoperatively, the drain was removed using the drain negative pressure release test...
December 5, 2023: Surgery Today
https://read.qxmd.com/read/37986850/hypoxia-evokes-a-sequence-of-raphe-pontomedullary-network-operations-for-inspiratory-drive-amplification-and-gasping
#24
Sarah C Nuding, Lauren S Segers, Kimberly E Iceman, Russell O'Connor, Jay B Dean, Pierina A Valarezo, Dale Shuman, Irene C Solomon, Donald C Bolser, Kendall F Morris, Bruce G Lindsey
Hypoxia can trigger a sequence of breathing-related behaviors, from tachypnea to apneusis to apnea and gasping, an autoresuscitative behavior that, via large tidal volumes and altered intrathoracic pressure, can enhance coronary perfusion, carotid blood flow, and sympathetic activity, and thereby coordinate cardiac and respiratory functions. We tested the hypothesis that hypoxia-evoked gasps are amplified through a disinhibitory microcircuit within the inspiratory neuron chain and a distributed efference copy mechanism that generates coordinated gasp-like discharges concurrently in other circuits of the raphe-pontomedullary respiratory network...
November 10, 2023: bioRxiv
https://read.qxmd.com/read/37953016/remote-monitoring-devices-and-heart-failure
#25
REVIEW
Kashvi Gupta, Ioannis Mastoris, Andrew J Sauer
Remote patient monitoring (RPM) in patients with heart failure (HF) involves transmitting physiological data from devices to a health-care provider via a wireless connection with targeted interventions when values exceed the preset threshold. Devices used in telemonitoring range from weighing scales, blood pressure cuffs, and pulse oximeters to devices used to measure cardiac filling pressure and intrathoracic impedance using cardiac implantable electronic devices and wearables. Accordingly, RPM devices can potentially engage patients in their cardiovascular care and reduce the burden of HF in society...
January 2024: Heart Failure Clinics
https://read.qxmd.com/read/37948259/comparison-of-biomechanical-outcome-measures-from-characteristically-different-blast-simulators-and-the-influence-of-exposure-location
#26
JOURNAL ARTICLE
Venkatasivasai Sajja, Richard Shoge, Elizabeth McNeil, Stephen Van Albert, Donna Wilder, Joseph Long
INTRODUCTION: Simulation of blast exposure in the laboratory has been inconsistent across laboratories. This is primarily because of adoption of the shock wave-generation techniques that are used in aerodynamic tests as opposed to application of blast exposures that are relevant to combat and training environments of a Warfighter. Because of the differences in blast signatures, characteristically different pathological consequences are observed among the preclinical studies. This is also further confounded by the varied exposure positioning of the animal subject (e...
November 8, 2023: Military Medicine
https://read.qxmd.com/read/37942356/coronary-air-embolism-during-transcatheter-patent-foramen-ovale-closure-for-platypnea-orthodeoxia-syndrome-in-a-patient-with-severe-respiratory-disorder-a-case-report
#27
Kosuke Tanimura, Hiroyuki Yamamoto, Ken-Ichi Hirata, Hiromasa Otake
BACKGROUND: Coronary air embolism (CAE) is a rare and life-threatening complication of endovascular procedures, mostly due to procedure-related causes. CASE SUMMARY: A 70-year-old man with severe respiratory disorder presented with patent foramen ovale (PFO)-related platypnea-orthodeoxia syndrome (POS). Transcatheter PFO closure was performed under local anaesthesia and intracardiac echocardiographic guidance. After a 5-Fr catheter was passed through the PFO via a 7-Fr femoral vein sheath, the patient suddenly coughed and breathed deeply...
November 2023: European Heart Journal. Case Reports
https://read.qxmd.com/read/37928608/study-on-respiratory-function-and-hemodynamics-of-aids-patients-with-respiratory-failure
#28
JOURNAL ARTICLE
Kai Qiu, Jiaqi Lu, Hebing Guo, Chunjing Du, Jingyuan Liu, Ang Li
OBJECTIVE: We performed a comparative analysis of respiratory function and hemodynamics among patients with Acquired Immunodeficiency Syndrome (AIDS)-associated respiratory failure and those with non-AIDS-associated respiratory failure. METHODS: Data were collected from critically ill patients diagnosed with Acquired Immunodeficiency Syndrome who were admitted to the Intensive Care Unit (ICU) of Beijing Ditan Hospital, affiliated with Capital Medical University, between January 1, 2019, and December 31, 2019...
2023: Infection and Drug Resistance
https://read.qxmd.com/read/37919442/head-down-tilt-reduces-the-heart-rate-in-postural-tachycardia-syndrome-in-acute-setting-a-pilot-study
#29
JOURNAL ARTICLE
Peter Novak
BACKGROUND: Reduced preload and thoracic blood volume accompany postural tachycardia syndrome (POTS). Head-down tilt (HDT) increases both preload and intrathoracic blood volume. The objective of this study was to assess the safety and efficacy of HDT in POTS in acute settings. METHODS: This retrospective study evaluated POTS patients. Analyzed data included heart rate, blood pressure, cerebral blood flow velocity (CBFv) in the middle cerebral artery, and capnography...
November 3, 2023: Neurological Sciences
https://read.qxmd.com/read/37892952/evaluation-of-the-photoplethysmogram-based-deep-learning-model-for-continuous-respiratory-rate-estimation-in-surgical-intensive-care-unit
#30
JOURNAL ARTICLE
Chi Shin Hwang, Yong Hwan Kim, Jung Kyun Hyun, Joon Hwang Kim, Seo Rak Lee, Choong Min Kim, Jung Woo Nam, Eun Young Kim
The respiratory rate (RR) is a significant indicator to evaluate a patient's prognosis and status; however, it requires specific instrumentation or estimates from other monitored signals. A photoplethysmogram (PPG) is extensively used in clinical environments as well as in intensive care units (ICUs) to primarily monitor peripheral circulation while capturing indirect information about intrathoracic pressure changes. This study aims to apply and evaluate several deep learning models using a PPG for the continuous and accurate estimation of the RRs of patients...
October 19, 2023: Bioengineering
https://read.qxmd.com/read/37876659/synergistic-effects-of-resistive-breathing-on-endotoxin-induced-lung-injury-in-mice
#31
JOURNAL ARTICLE
Dimitrios Toumpanakis, Constantinos Glynos, Pinelopi Schoini, Vyronia Vassilakopoulou, Athanasia Chatzianastasiou, Maria Dettoraki, Eleftheria Mizi, Dionysios Tsoukalas, Fotis Perlikos, Christina Magkou, Andreas Papapetropoulos, Theodoros Vassilakopoulos
INTRODUCTION: Resistive breathing (RB) is characterized by forceful contractions of the inspiratory muscles, mainly the diaphragm, resulting in large negative intrathoracic pressure and mechanical stress imposed on the lung. We have shown that RB induces lung injury in healthy animals. Whether RB exerts additional injurious effects when added to pulmonary or extrapulmonary lung injury is unknown. Our aim was to study the synergistic effect of RB on lipopolysaccharide (LPS)-induced lung injury...
2023: International Journal of Chronic Obstructive Pulmonary Disease
https://read.qxmd.com/read/37871311/let-s-talk-about-respiratory-swings
#32
JOURNAL ARTICLE
Horst Olschewski, Katarina Zeder, Philipp Douschan, Teresa Sassmann, Vasile Foris, Andrea Olschewski, Gabor Kovacs
No abstract text is available yet for this article.
October 23, 2023: American Journal of Respiratory and Critical Care Medicine
https://read.qxmd.com/read/37855877/intracardiac-migration-of-distal-catheter-a-rare-complication-of-vp-shunt-insertion-case-report-and-literature-review
#33
JOURNAL ARTICLE
Ella Hobbs, Dominic N P Thompson, Nagarajan Muthialu, Adikarige Haritha Dulanka Silva
Intracardiac migration is a rare complication of ventriculoperitoneal shunt insertion. Only 15 cases have been reported, 7 of which were paediatric cases, treated with techniques including interventional radiography, open thoracotomies and direct extraction through the initial shunt incision. The authors report the youngest case of intracardiac shunt migration complicated by significant coiling and knotting within the cardiac chambers and pulmonary vasculature. Migration likely began when the SVC was pierced during initial shunt placement and progressed due to negative intrathoracic pressure...
October 19, 2023: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://read.qxmd.com/read/37840002/pulmonary-and-esophageal-function-in-lung-transplantation-fundamental-principles-and-clinical-application
#34
REVIEW
Andrés R Latorre-Rodríguez, Deepika Razia, Ashraf Omar, Ross M Bremner, Sumeet K Mittal
The lungs and esophagus have a close anatomical and physiological relationship. Over the years, reflux-induced pulmonary injury has gained wider recognition, but the full effects of pulmonary disease on esophageal function are still unknown. Intrathoracic pressure dynamics potentially affect esophageal function, especially in patients with end-stage lung disease, both obstructive and restrictive. Lung transplantation is the only viable option for patients with end-stage pulmonary disease and has provided us with a unique opportunity to study these effects as transplantation restores the intrathoracic environment...
September 26, 2023: Transplantation Reviews
https://read.qxmd.com/read/37823987/pump-up-the-volume-breathing-facilitates-cardiac-output-during-exercise-by-mechanical-action
#35
JOURNAL ARTICLE
Ken D O'Halloran
No abstract text is available yet for this article.
October 12, 2023: Journal of Physiology
https://read.qxmd.com/read/37813557/electrocardiographic-spiked-helmet-sign-in-critical-non-cardiac-illness
#36
JOURNAL ARTICLE
Offdan Narvaez-Guerra, Brian Osorio, Bryon Gentile, Freddy Del-Carpio Munoz
The spiked-helmet sign (SHS) is an electrocardiographic finding characterised by a distinctive pattern associated with critical illness, resolving once the clinical condition improves. While the underlying mechanism remains uncertain, different mechanisms have been proposed to account for these findings including changes in intrathoracic or intra-abdominal pressures, transient compression of the coronary arteries, repolarisation abnormalities and electromechanical artefacts. We describe the development of the SHS in a patient with underlying left bundle branch pacing following the development of respiratory failure due to haemoptysis and review proposed mechanisms for its pathophysiology...
October 9, 2023: BMJ Case Reports
https://read.qxmd.com/read/37813147/effect-of-stomach-inflation-during-cardiopulmonary-resuscitation-on-return-of-spontaneous-circulation-in-out-of-hospital-cardiac-arrest-patients-a-retrospective-observational-study
#37
JOURNAL ARTICLE
Hiromichi Naito, Hiroaki Hanafusa, Takashi Hongo, Tetsuya Yumoto, Takashi Yorifuji, Alexandra Weissman, Jon C Rittenberger, Francis X Guyette, Mamoru Fujishima, Hiroki Maeyama, Astunori Nakao
BACKGROUND: Gastric inflation caused by excessive ventilation is a common complication of cardiopulmonary resuscitation. Gastric inflation may further compromise ventilation via increases in intrathoracic pressure, leading to decreased venous return and cardiac output, which may impair out-of-hospital cardiac arrest (OHCA) outcomes. The purpose of this study was to measure the gastric volume of OHCA patients using computed tomography (CT) scan images and evaluate the effect of gastric inflation on return of spontaneous circulation (ROSC)...
October 7, 2023: Resuscitation
https://read.qxmd.com/read/37805369/ventilation-assisted-feedback-in-out-of-hospital-cardiac-arrest-a-case-series
#38
Stephen Gerber, Amir Pourmand, Natalie Sullivan, Vadym Shapovalov, Ali Pourmand
Excessive ventilatory volumes and rates during cardiopulmonary resuscitation (CPR) can lead to adverse effects, such as elevated intrathoracic pressure and decreased coronary blood flow. The 2020 American Heart Association (AHA) guidelines acknowledge the value of real-time feedback devices in improving CPR performance. In this case series, three out-of-hospital cardiac arrest cases received ventilation feedback during prehospital resuscitation and the initial in-hospital care phase. In each case, a notable increase in ventilation rate and volume was observed following the transfer of care from emergency medical services to hospital staff...
September 29, 2023: American Journal of Emergency Medicine
https://read.qxmd.com/read/37790771/increasing-venous-return-blood-flow-to%C3%A2-the-right-atrium-using-the-party%C3%A2-balloon-inflation-maneuver
#39
JOURNAL ARTICLE
Akihisa Kataoka, Kento Kito, Kazuyo Shirakura, Taiga Katayama, Ken Kozuma
The party balloon inflation maneuver increases intrathoracic pressure, decreases venous return, and after release enhances venous return to the right atrium more effectively than does the conventional Valsalva maneuver. Therefore, it shows potential for more effective detection of right-to-left shunts in patients with a patent foramen ovale. ( Level of Difficulty: Intermediate. ).
September 20, 2023: JACC. Case reports
https://read.qxmd.com/read/37781226/cardio-respiratory-interactions-in-acute-asthma
#40
REVIEW
Morgan Caplan, Olfa Hamzaoui
Asthma encompasses of respiratory symptoms that occur intermittently and with varying intensity accompanied by reversible expiratory airflow limitation. In acute exacerbations, it can be life-threatening due to its impact on ventilatory mechanics. Moreover, asthma has significant effects on the cardiovascular system, primarily through heart-lung interaction-based mechanisms. Dynamic hyperinflation and increased work of breathing caused by a sharp drop in pleural pressure, can affect cardiac function and cardiac output through different mechanisms...
2023: Frontiers in Physiology
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