scholarly journals A case of convulsion resembling masseter muscle spasm (MMS) during caesarean delivery under subarachnoid block

2014 ◽  
Vol 22 (1) ◽  
pp. 35-37
Author(s):  
Md Aminul Islam ◽  
Sadik Enam Boksh ◽  
Md Amirul Islam
Keyword(s):  
Blood Pressure ◽  
Masseter Muscle ◽  
Caesarean Delivery ◽  
Muscle Tension ◽  
Face Mask ◽  
Muscle Spasm ◽  
Fetal Movement ◽  
Subarachnoid Block ◽  
Jaw Muscle ◽  
Anaesthetic Procedure

A 28 yrs old female forty weeks gravida was scheduled for caesarean section for less fetal movement. She did not have any bad obstetric history and any complication during previous operation and anaesthetic procedure. Subarachnoid block was performed at L3-L4 interspace with 2.5ml (12.5mg)5% bupivacaine heavy. Suddenly the patient became cyanosed and she tried to tell something but could not talk. Then she was given 100% O2 by face mask but it was not fruitful. Then endotracheal intubation was attempted but failed to achieve due to increased jaw muscle tension and mouth could not be opened like masseter muscle spasm (MMS). At that stage patient became unresponsive and no pulse was palpable, blood pressure was not recordable. Intravenous adrenaline was given immediately and then 100mg of suxamethonium adminstered intravenously. The jaw relaxed within minutes and tracheal intubation was done. General Anaesthesia was maintained with O2/N2O, 0.4% halothane and atracurium. The reversal was good enough and the patient was haemodynamically stable. The patient transferred to the recovery room. DOI: http://dx.doi.org/10.3329/jbsa.v22i1.18100 Journal of BSA, 2009; 22(1): 35-37

Conditioned Diastolic Blood Pressure as a Function of Induced Masseter Muscle Tension

1978 ◽  
Vol 15 (5) ◽  
pp. 422-428 ◽  
Author(s):  
S. Thomas Elder ◽  
Elizabeth A. Verzwyvelt ◽  
Robert D. Mcafee
Keyword(s):  
Blood Pressure ◽  
Diastolic Blood Pressure ◽  
Masseter Muscle ◽  
Muscle Tension

Effects of nicotine on canine intestinal blood flow and oxygen consumption

1984 ◽  
Vol 246 (2) ◽  
pp. G195-G203
Author(s):  
R. H. Gallavan ◽  
Y. Tsuchiya ◽  
E. D. Jacobson
Keyword(s):  
Blood Pressure ◽  
Blood Flow ◽  
Oxygen Consumption ◽  
Muscle Tension ◽  
Intestinal Blood Flow ◽  
Mesenteric Blood Flow ◽  
State Response ◽  
Arterial Blood ◽  
Intestinal Circulation

The purpose of this study was to determine the effects of nicotine on intestinal blood flow and oxygen consumption. The intravenous infusion of nicotine at doses corresponding to those experienced by smokers produced a transient increase in systemic arterial blood pressure and mesenteric blood flow. Subsequently a steady-state response developed that consisted of a reduction in mesenteric blood flow due to both a decrease in blood pressure and an increase in intestinal vascular resistance. This increase in resistance was probably due to increased levels of circulating catecholamines. The intra-arterial infusion of nicotine into the intestinal circulation at doses experienced by the average smoker had no effect on either intestinal blood flow or oxygen consumption. Similarly, under in vitro conditions nicotine had no direct effect on intestinal vascular smooth muscle tension. Thus, nicotine appears to reduce intestinal blood flow indirectly as a result of its systemic effects.

Biofeedback and Self-Control of Physiological Functions: Clinical Applications

1975 ◽  
Vol 6 (1-2) ◽  
pp. 255-265 ◽  
Author(s):  
Peter P. Hauri
Keyword(s):  
Blood Pressure ◽  
Cardiovascular System ◽  
Clinical Application ◽  
Cardiac Arrhythmias ◽  
Muscle Tension ◽  
Clinical Applications ◽  
Self Control ◽  
Physiological Functions ◽  
Personality Changes ◽  
Tension Headaches

The parameters amenable to biofeedback learning are mentioned, including brainwaves, muscle tension, temperature, the cardiovascular system, and others. A discussion follows of the clinical application of biofeedback in the treatment of such disorders as tension headaches, neuromuscular re-education, epilepsy, “dysponesis,” cardiac arrhythmias, blood pressure and migraines. The usefulness of biofeedback has been demonstrated also in the field of psychotherapy for purposes of desensitization, treating anxious patients, encouraging specific personality changes, and indicating stress to patients.

Suggestions for Use of Behavioral Measures in Treating Bruxism

1986 ◽  
Vol 58 (3) ◽  
pp. 719-722 ◽  
Author(s):  
Michael Cherasia ◽  
Lee Parks
Keyword(s):  
Masseter Muscle ◽  
Muscle Tension ◽  
Behavioral Measures ◽  
Term Maintenance ◽  
Current Practices

Nonfunctional grinding and gnashing of teeth during sleep is a behavior known as nocturnal bruxism, which affects a significant number of persons. It may lead to serious dental problems. Current practices by dentists and psychologists involve EMG monitoring of masseter muscle tension and contingent arousal for bruxing. Here assumed efficacy of arousal combined with overcorrection procedures rather than use of arousal alone guides treatment. Intermittent contingency schedules have been effective in long-term maintenance and generalization of behaviors.

scholarly journals Use of Granisetron for prevention of hypotension and bradycardia due to spinal anesthesia: A double blind randomised control trial

2015 ◽  
Vol 1 (1) ◽  
pp. 36-39 ◽  
Author(s):  
Battu Kumar Shrestha ◽  
Subhash Prasad Acharya ◽  
Moda Nath Marhatta
Keyword(s):  
Blood Pressure ◽  
Mean Arterial Pressure ◽  
Arterial Pressure ◽  
Systolic Blood Pressure ◽  
Diastolic Blood Pressure ◽  
Spinal Anaesthesia ◽  
Serotonin Receptors ◽  
Randomised Control Trial ◽  
Saline Control ◽  
Subarachnoid Block

Background: The common adverse effects of spinal anaesthesia include hypotension and bradycardia are due to sympathetic nerve blockade and activation of the Bezold-Jarisch reflex. The Bezold-Jarisch reflex in spinal anaesthesia may be mediated by peripheral 5-HT3 type serotonin receptors. We hypothesized that blockade of type 3 serotonin receptors by using intravenous Granisetron might reduce hypotension and bradycardia induced by spinal anaesthesia.Methodology: Sixty American Society of Anesthesiologists Physical Status I and II patients undergoing lower abdominal surgeries were randomized to receive either Normal Saline (control) or Granisetron 40 mcg/kg intravenously five minutes before subarachnoid block. Heart rates, systolic blood pressure, diastolic blood pressure, mean arterial pressure was recorded every two minutes for ten minutes and then every five minutes for another twenty minutes. Hemodynamic parameters were compared with baseline in each group.Results: There was decrease in all measured variables when compared with baseline values in both groups. There was less reduction in diastolic blood pressure in Granisetron group statistically significant at 10, 15, 20, 25 and 30 minutes. However, the less decrease in mean arterial pressure was statistically significant at 30 minutes only. There were no significant differences in systolic blood pressure and heart rate values between the groups.Conclusions: Granisetron given intravenously does not decrease the incidence of hypotension and bradycardia following subarachnoid block in patients undergoing lower abdominal surgery. However, it attenuates the fall of diastolic and mean arterial pressure spinal anaesthesia.Journal of Society of Anesthesiologists 2014 1(1): 36-39

Chemically induced cardiovascular reflexes arising from the stomach of the cat

1984 ◽  
Vol 247 (3) ◽  
pp. H459-H466 ◽  
Author(s):  
J. C. Longhurst ◽  
C. L. Stebbins ◽  
G. A. Ordway
Keyword(s):  
Blood Pressure ◽  
Smooth Muscle ◽  
Muscle Tension ◽  
Cardiovascular Responses ◽  
Smooth Muscle Contraction ◽  
Left Ventricular ◽  
Cardiovascular Reflexes ◽  
Bilateral Vagotomy ◽  
Celiac Ganglionectomy ◽  
Developed Pressure

We examined the potential for cardiovascular reflexes caused by the application of either bradykinin or capsaicin to the serosal or mucosal surface of the stomach. After application to the serosa, bradykinin (10 micrograms/ml) evoked increases in mean arterial pressure of 12 +/- 2 mmHg, heart rate of 5 +/- 1 beats/min, left ventricular dP/dt (at 40 mmHg developed pressure) of 305 +/- 54 mmHg/s and systemic vascular resistance of 0.04 +/- 0.01 PRU. Capsaicin (200 microgram/ml) caused similar cardiovascular responses. There were no cardiovascular responses when either substance was applied to the gastric mucosa. The responses to both chemicals were abolished by celiac ganglionectomy but not by bilateral vagotomy. To determine whether the cardiovascular responses evoked by bradykinin were caused by smooth muscle contraction, we compared the increases in gastric smooth muscle tension and blood pressure elicited by bradykinin, bethanechol, or acetylcholine. Bethanechol and acetylcholine caused greater increases in tension than bradykinin, whereas bradykinin evoked greater increases in blood pressure than either bethanechol or acetylcholine. We conclude that stimulation of gastric afferents by capsaicin or bradykinin causes cardiovascular reflexes, primarily through activation of chemosensitive receptors.

scholarly journals Study of patient satisfaction and self-expressed problems after emergency caesarean delivery under subarachnoid block

2014 ◽  
Vol 58 (2) ◽  
pp. 149 ◽  
Author(s):  
VR Hemanth Kumar ◽  
SameerM Jahagirdar ◽  
UmeshKumar Athiraman ◽  
R Sripriya ◽  
S Parthasarathy ◽  
...  
Keyword(s):  
Patient Satisfaction ◽  
Caesarean Delivery ◽  
Subarachnoid Block ◽  
Emergency Caesarean

scholarly journals “Chasing the High” – Experiences of Ethylphenidate as Described on International Internet Forums

2015 ◽  
Vol 9 ◽  
pp. SART.S22495 ◽  
Author(s):  
Christophe Soussan ◽  
Anette Kjellgren
Keyword(s):  
Public Health ◽  
Blood Pressure ◽  
Health Personnel ◽  
Cognitive Enhancement ◽  
Muscle Tension ◽  
Psychoactive Substance ◽  
Profuse Sweating ◽  
Self Reports ◽  
Internet Forums ◽  
Safety First

Ethylphenidate is a novel psychoactive substance with undocumented effects, risks, and motivation for use. In this study, we investigated the experience of ethylphenidate by analyzing self-reports published on Internet forums, which revealed seven overarching themes: (1) compulsive redosing and addiction; (2) impacts on the mental state; (3) bodily agitation; (4) increased sociableness; (5) administration; (6) diverse evaluations based on intention; and (7) safety and precaution. Ethylphenidate appeared as a potent psychostimulant with an imminent abuse potential. It was mainly used for recreational purposes. The effects included not only pleasurable stimulation, euphoria, and cognitive enhancement but also indecisiveness, anxiety, and cognitive fragmentation. The users reported an increase in body temperature, heart rate, and blood pressure, but they also experienced profuse sweating and muscle tension. Ethylphenidate acted as a social lubricant, enhancing intimacy, communication, and social skills. Two opposing user mentalities were uncovered: (1) pleasure seeking and risk neglecting, and (2) safety-first orientation. This information could be of importance to legislators, public health personnel, and prevention strategists.

scholarly journals Acupuncture on the Blood Flow of Various Organs Measured Simultaneously by Colored Microspheres in Rats

2009 ◽  
Vol 6 (1) ◽  
pp. 77-83 ◽  
Author(s):  
Hiroyuki Tsuru ◽  
Kenji Kawakita
Keyword(s):  
Blood Pressure ◽  
Blood Flow ◽  
Masseter Muscle ◽  
Wistar Rats ◽  
Organ Blood Flow ◽  
Blood Samples ◽  
Acupuncture Needle ◽  
Colored Microspheres ◽  
The Mean ◽  
The Right

We examined how acupuncture affected the blood flow of muscle, kidney, stomach, small intestine, brain, lung, heart, spleen and liver. Wistar rats anesthetized with urethane (n= 27) were allocated into the control (n= 10), ST-7 (Hsia-Kuan,n= 10) and LI-4 (Hoku,n= 7) groups. To measure organ blood flow, colored microspheres (CMS) were injected through a catheter positioned in the left ventricle and blood samples were drawn from the femoral artery. Yellow CMS (3.6–4.2 × 105) and blue CMS (6.0–6.9 × 105) were injected at intervals of about 30 min. An acupuncture needle (φ 340 μm) was inserted into the left ST-7 point (left masseter muscle) or the right LI-4 point after the first sampling and left for about 30 min (10 twists at 1 Hz, 2-min intervals). The mean blood flow of nine organs varied widely from 4.03 to 0.20 (ml/min/g). Acupuncture to the ST-7 produced significant changes of the blood flow (percentage change from baseline) in the muscle, kidney, brain and heart (P< 0.05, versus control), but those of LI-4 were not significant. The blood flow of the left masseter muscle after acupuncture to ST-7 (left masseter muscle) tended to increase (P= 0.08). Changes in blood pressure during the experimental periods were almost similar among these three groups. Acupuncture stimulation increases the blood flow of several organs by modulating the central circulatory systems, and the effects differed with sites of stimulation.

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